WO2016171041A1 - 複層フィルムの製造方法及び複層フィルム - Google Patents
複層フィルムの製造方法及び複層フィルム Download PDFInfo
- Publication number
- WO2016171041A1 WO2016171041A1 PCT/JP2016/061824 JP2016061824W WO2016171041A1 WO 2016171041 A1 WO2016171041 A1 WO 2016171041A1 JP 2016061824 W JP2016061824 W JP 2016061824W WO 2016171041 A1 WO2016171041 A1 WO 2016171041A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- carbon atoms
- liquid crystal
- substituent
- crystal compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
- B05D1/265—Extrusion coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/061—Linear compounds without any rings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3016—Polarising elements involving passive liquid crystal elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3083—Birefringent or phase retarding elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/02—Details
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/55—Liquid crystals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2355/00—Characterised by the use of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08J2323/00 - C08J2353/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/14—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K2323/03—Viewing layer characterised by chemical composition
Definitions
- the present invention relates to a multilayer film comprising an optically anisotropic layer produced using a liquid crystalline composition and a method for producing the same.
- a desired optical film can be produced by applying a composition containing the liquid crystal compound to a surface of an appropriate substrate to form a layer and curing the layer. is there. In such a method, it may be required to properly align the liquid crystal compound. Therefore, various techniques have been conventionally studied for aligning liquid crystal compounds (see Patent Documents 1 to 3). Further, a technique as disclosed in Patent Document 4 is known.
- optical films there is a film having an optically anisotropic layer.
- Such an optically anisotropic layer usually has retardation and can be used for applications such as a quarter-wave plate and a half-wave plate.
- the optically anisotropic layer In order for the optically anisotropic layer to exhibit its function uniformly in a wide wavelength band, it is desirable that the optically anisotropic layer has a retardation of reverse wavelength dispersion. Therefore, in order to realize the retardation of the reverse wavelength dispersibility of the optically anisotropic layer, the optically anisotropic layer using a liquid crystalline composition containing a polymerizable liquid crystal compound capable of developing a reverse wavelength dispersive birefringence is used. Development of technology to manufacture is required.
- an optically anisotropic layer is formed by applying a liquid crystalline composition
- the coating property of the liquid crystalline composition is good in order to improve the quality of the produced optically anisotropic layer.
- that the applicability of the liquid crystal composition is good means that the liquid crystal composition is well coated and has little repellency.
- the surface free energy of the surface is sufficiently higher than the surface tension of the liquid, the liquid is well applied and the repellency is small. Yes.
- an optically anisotropic layer is formed by applying a liquid crystalline composition to a substrate
- the surface of the substrate is subjected to a surface treatment such as an alignment film forming treatment and a corona treatment.
- the surface free energy of the surface was often increased.
- the present inventors tried to improve the coating property of the liquid crystalline composition by making the surface tension of the liquid crystalline composition sufficiently lower than the surface free energy of the surface of the substrate.
- the surface free energy of the surface of the substrate is low, it has been found that even if the surface tension of the liquid crystalline composition is sufficiently low, poor coating or large repellency occurs.
- the present invention was devised in view of the above problems, and a liquid crystalline composition containing a polymerizable liquid crystal compound capable of developing birefringence with reverse wavelength dispersion is excellent on the surface of a substrate having low surface free energy.
- a method for producing a multilayer film comprising a substrate and an optically anisotropic layer, and a liquid crystalline composition comprising a polymerizable liquid crystal compound capable of developing birefringence with reverse wavelength dispersion It is an object of the present invention to provide a multilayer film obtained by coating a surface of a base material having a low surface free energy with good coating properties.
- the present inventors applied a liquid crystalline composition containing a polymerizable liquid crystal compound capable of developing birefringence with reverse wavelength dispersion to the surface of a substrate having a low surface free energy. In doing so, it was found that the coating properties of the liquid crystalline composition can be improved by keeping the surface tension of the liquid crystalline composition within a predetermined range, and the present invention has been completed. That is, the present invention is as follows.
- a method for producing a multilayer film comprising a substrate and an optically anisotropic layer, Applying a liquid crystalline composition containing a polymerizable liquid crystal compound capable of expressing reverse wavelength dispersive birefringence on the surface of the base material to form a layer of the liquid crystalline composition; Polymerizing the polymerizable liquid crystal compound contained in the layer of the liquid crystalline composition to obtain an optically anisotropic layer,
- the surface free energy of the surface of the substrate is 50 mN / m or less,
- the manufacturing method of the multilayer film whose surface tension of the said liquid crystalline composition is 26 mN / m or more.
- R 1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.
- G 1 and G 2 each independently represent a divalent aliphatic group having 1 to 20 carbon atoms, which may have a substituent.
- the aliphatic group includes one or more —O—, —S—, —O—C ( ⁇ O) —, —C ( ⁇ O) —O—, —O—C per aliphatic group.
- ( ⁇ O) —O—, —NR 2 —C ( ⁇ O) —, —C ( ⁇ O) —NR 2 —, —NR 2 —, or —C ( ⁇ O) — may be present. Good. However, the case where two or more of —O— or —S— are adjacent to each other is excluded.
- R 2 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.
- Z 1 and Z 2 each independently represents an alkenyl group having 2 to 10 carbon atoms which may be substituted with a halogen atom.
- a x represents an organic group having 2 to 30 carbon atoms having at least one aromatic ring selected from the group consisting of an aromatic hydrocarbon ring and an aromatic heterocyclic ring.
- a y has a hydrogen atom, an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted alkenyl group having 2 to 20 carbon atoms, and a substituent.
- a cycloalkyl group having 3 to 12 carbon atoms, an alkynyl group having 2 to 20 carbon atoms which may have a substituent, —C ( ⁇ O) —R 3 , —SO 2 —R 4 , —C ( S) NH-R 9 or an organic group having 2 to 30 carbon atoms having at least one aromatic ring selected from the group consisting of an aromatic hydrocarbon ring and an aromatic heterocyclic ring.
- R 3 has an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted alkenyl group having 2 to 20 carbon atoms, and a substituent.
- R 4 represents an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, a phenyl group, or a 4-methylphenyl group.
- R 9 is an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted alkenyl group having 2 to 20 carbon atoms, and an optionally substituted carbon. It represents a cycloalkyl group having 3 to 12 carbon atoms or an aromatic group having 5 to 20 carbon atoms which may have a substituent. The aromatic ring which said Ax and Ay have may have a substituent.
- a x and A y may be combined to form a ring.
- a 1 represents a trivalent aromatic group which may have a substituent.
- a 2 and A 3 each independently represent a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms which may have a substituent.
- a 4 and A 5 each independently represents a divalent aromatic group having 6 to 30 carbon atoms, which may have a substituent.
- Q 1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms which may have a substituent.
- m and n each independently represents 0 or 1.
- [5] The method for producing a multilayer film according to any one of [1] to [4], wherein the substrate is made of a resin containing an alicyclic structure-containing polymer.
- [6] The method for producing a multilayer film according to any one of [1] to [5], wherein the surface of the substrate is a non-treated surface that has not been subjected to a surface treatment.
- a base material A liquid crystalline composition containing a polymerizable liquid crystal compound capable of developing reverse wavelength dispersive birefringence and having a surface tension of 26 mN / m or more is applied to the surface of the base material having a surface free energy of 50 mN / m or less.
- an optically anisotropic layer obtained by polymerizing the polymerizable liquid crystal compound.
- the method includes a step of applying a liquid crystalline composition containing a polymerizable liquid crystal compound capable of developing reverse wavelength dispersive birefringence on a surface of a substrate having a low surface free energy with good coatability.
- a method for producing a multilayer film comprising a substrate and an optically anisotropic layer; and a liquid crystalline composition containing a polymerizable liquid crystal compound capable of developing birefringence with reverse wavelength dispersion, a substrate having low surface free energy
- FIG. 1 is a cross-sectional view schematically showing an example of a layer of a liquid crystalline composition immediately after the liquid crystalline composition is applied to the application surface of the substrate.
- FIG. 2 is a cross-sectional view schematically showing an example of a layer of the liquid crystalline composition after a lapse of time since the liquid crystalline composition was applied to the application surface of the substrate.
- FIG. 3 is a cross-sectional view schematically showing an example of a layer of the liquid crystalline composition after a lapse of time since the liquid crystalline composition was applied to the application surface of the substrate.
- FIG. 4 is a perspective view schematically showing an example of a layer of a liquid crystalline composition in which a repellency portion is generated due to a foreign substance attached to a coated surface of a substrate.
- a resin having a positive intrinsic birefringence value means a resin in which the refractive index in the stretching direction is larger than the refractive index in the direction perpendicular thereto.
- the resin having a negative intrinsic birefringence value means a resin having a refractive index in the stretching direction that is smaller than a refractive index in a direction perpendicular thereto.
- the intrinsic birefringence value can be calculated from the dielectric constant distribution.
- the retardation of a certain layer represents in-plane retardation Re unless otherwise specified.
- nx represents a refractive index in a direction (in-plane direction) perpendicular to the thickness direction of the layer and giving the maximum refractive index.
- ny represents the refractive index in the in-plane direction of the layer and perpendicular to the nx direction.
- d represents the thickness of the layer.
- the measurement wavelength of retardation is 550 nm unless otherwise specified.
- the direction of the slow axis of a certain layer means the direction of the slow axis in the in-plane direction unless otherwise specified.
- polarizing plate and “wave plate” are used as terms including flexible films and sheets such as resin films, unless otherwise specified.
- the range is within a range that does not impair the effect of the present invention, for example, ⁇ 5 °, preferably ⁇ 3 °, more preferably ⁇ 1.
- An error within the range of ° may be included.
- a liquid crystal composition containing a polymerizable liquid crystal compound capable of expressing birefringence with reverse wavelength dispersion is applied to the surface of a substrate, and the layer of the liquid crystal composition is applied. And a step of polymerizing a polymerizable liquid crystal compound contained in the layer of the liquid crystalline composition to obtain an optically anisotropic layer.
- a multilayer film comprising a substrate and an optically anisotropic layer can be produced.
- the surface of the substrate on which the liquid crystalline composition is applied may be referred to as “applied surface” as appropriate.
- a polymerizable liquid crystal compound that can exhibit reverse wavelength dispersive birefringence may be referred to as “reverse wavelength polymerizable liquid crystal compound” as appropriate.
- the substrate a member having a surface having a predetermined surface free energy is used, and usually a film is used.
- the base material may have a surface having a predetermined surface free energy only on one surface thereof or on both surfaces thereof.
- the surface of the base material which has a predetermined surface free energy is used as an application surface on which a liquid crystalline composition is applied.
- the coated surface of the substrate has a predetermined surface free energy when the liquid crystalline composition is coated on the coated surface, and the reverse wavelength polymerizable liquid crystal compound contained in the liquid crystalline composition is polymerized. Later, the surface free energy of the coated surface is arbitrary.
- the surface free energy of the coated surface of the substrate is usually 50 mN / m or less, preferably 45 mN / m or less, and particularly preferably 40 mN / m or less.
- a substrate having a surface having a low surface free energy it has been difficult for a substrate having a surface having a low surface free energy to be coated with a liquid crystal composition in the past, but a specific liquid crystal composition containing a reverse wavelength polymerizable liquid crystal compound is unique. In particular, it can be applied satisfactorily.
- the lower limit of the surface free energy of the coated surface of the substrate is not particularly limited, but is preferably 25 mN / m or more, more preferably 30 mN / m or more, and particularly preferably 35 mN / m or more. Since the base material which has the coating surface which has the surface free energy more than the said lower limit of the said range can be manufactured without performing the process for adjusting surface free energy, the manufacturing cost of a multilayer film can be suppressed.
- the surface free energy of the coated surface of the base material is determined by measuring the contact angle of pure water (H 2 O) and the contact angle of diiodomethane (CH 2 I 2 ) on the coated surface, and from the measured contact angle data, Owens. Can be calculated according to Wendt's analytic theory. For the above analysis theory, reference may be made to “DK Owens, RC Wendt, J. Appl. Polym. Sci., 13, 1741, (1969)”.
- the surface free energy can be measured by the following method.
- the contact angle ⁇ H2O of pure water H 2 O and the contact angle ⁇ CH2I2 of diiodomethane CH 2 I 2 are experimentally measured on the coated surface of the substrate.
- the contact angle is measured under the conditions of a temperature of 25 ° C. and a humidity of 60% after the substrate is conditioned for 1 hour or longer.
- the component ⁇ d and the component ⁇ h are calculated from the measured contact angles ⁇ H2O and ⁇ CH2I2 by the following simultaneous equations (X) and (Y).
- the resin is usually used as the material for forming the base material.
- any resin capable of obtaining a base material having a coating surface having the predetermined surface free energy described above can be used.
- a resin having a positive intrinsic birefringence value is preferable from the viewpoint of high orientation regulating force, high mechanical strength, and low cost.
- resin containing an alicyclic structure containing polymer since it is excellent in transparency, low hygroscopicity, dimensional stability, and lightness, it is preferable to use resin containing an alicyclic structure containing polymer.
- the alicyclic structure-containing polymer is a polymer in which the structural unit of the polymer contains an alicyclic structure, and is usually an amorphous polymer having no melting point.
- This alicyclic structure-containing polymer may have an alicyclic structure in the main chain, and may have an alicyclic structure in the side chain.
- an alicyclic structure containing polymer contains an alicyclic structure in a principal chain from a mechanical strength and a heat resistant viewpoint.
- alicyclic structure examples include a saturated alicyclic hydrocarbon (cycloalkane) structure and an unsaturated alicyclic hydrocarbon (cycloalkene, cycloalkyne) structure.
- cycloalkane saturated alicyclic hydrocarbon
- cycloalkene unsaturated alicyclic hydrocarbon
- cycloalkyne unsaturated alicyclic hydrocarbon
- a cycloalkane structure and a cycloalkene structure are preferable, and a cycloalkane structure is particularly preferable.
- the number of carbon atoms constituting the alicyclic structure is preferably 4 or more, more preferably 5 or more, particularly preferably 6 or more, preferably 30 or less, more preferably per alicyclic structure. Is 20 or less, particularly preferably 15 or less.
- the proportion of structural units having an alicyclic structure can be appropriately selected depending on the purpose of use.
- the ratio of the structural unit having an alicyclic structure in the alicyclic structure-containing polymer is preferably 50% by weight or more, more preferably 70% by weight or more, and particularly preferably 90% by weight or more.
- the proportion of the structural unit having an alicyclic structure in the alicyclic structure-containing polymer is within this range, the transparency and heat resistance of the substrate are good.
- Examples of the alicyclic structure-containing polymer include norbornene polymers, monocyclic olefin polymers, cyclic conjugated diene polymers, vinyl alicyclic hydrocarbon polymers, and hydrides thereof. .
- norbornene-based polymers are more preferable because of their good transparency and moldability.
- Examples of the norbornene-based polymer include a ring-opening polymer of a monomer having a norbornene structure and a hydrogenated product thereof; an addition polymer of a monomer having a norbornene structure and a hydrogenated product thereof.
- Examples of a ring-opening polymer of a monomer having a norbornene structure include a ring-opening homopolymer of one kind of monomer having a norbornene structure and a ring-opening of two or more kinds of monomers having a norbornene structure. Examples thereof include a copolymer and a ring-opening copolymer of a monomer having a norbornene structure and an arbitrary monomer copolymerizable therewith.
- examples of the addition polymer of a monomer having a norbornene structure include an addition homopolymer of one kind of monomer having a norbornene structure and an addition copolymer of two or more kinds of monomers having a norbornene structure. And addition copolymers of a monomer having a norbornene structure and an arbitrary monomer copolymerizable therewith.
- a hydrogenated product of a ring-opening polymer of a monomer having a norbornene structure is particularly suitable from the viewpoints of moldability, heat resistance, low hygroscopicity, dimensional stability, lightness and the like.
- Examples of the monomer having a norbornene structure include bicyclo [2.2.1] hept-2-ene (common name: norbornene), tricyclo [4.3.0.1 2,5 ] deca-3,7. -Diene (common name: dicyclopentadiene), 7,8-benzotricyclo [4.3.0.1 2,5 ] dec-3-ene (common name: methanotetrahydrofluorene), tetracyclo [4.4. 0.1 2,5 . 1 7,10 ] dodec-3-ene (common name: tetracyclododecene), and derivatives of these compounds (for example, those having a substituent in the ring).
- examples of the substituent include an alkyl group, an alkylene group, and a polar group. These substituents may be the same or different, and a plurality thereof may be bonded to the ring.
- One type of monomer having a norbornene structure may be used alone, or two or more types may be used in combination at any ratio.
- Examples of the polar group include heteroatoms or atomic groups having heteroatoms.
- Examples of the hetero atom include an oxygen atom, a nitrogen atom, a sulfur atom, a silicon atom, and a halogen atom.
- Specific examples of the polar group include a carboxyl group, a carbonyloxycarbonyl group, an epoxy group, a hydroxyl group, an oxy group, an ester group, a silanol group, a silyl group, an amino group, a nitrile group, and a sulfonic acid group.
- Examples of the monomer capable of ring-opening copolymerization with a monomer having a norbornene structure include monocyclic olefins such as cyclohexene, cycloheptene, and cyclooctene and derivatives thereof; cyclic conjugated dienes such as cyclohexadiene and cycloheptadiene; Derivatives thereof; and the like.
- monocyclic olefins such as cyclohexene, cycloheptene, and cyclooctene and derivatives thereof
- cyclic conjugated dienes such as cyclohexadiene and cycloheptadiene
- Derivatives thereof and the like.
- the monomer having a norbornene structure and a monomer capable of ring-opening copolymerization one kind may be used alone, or two or more kinds may be used in combination at any ratio.
- a ring-opening polymer of a monomer having a norbornene structure can be produced, for example, by polymerizing or copolymerizing a monomer in the presence of a ring-opening polymerization catalyst.
- Examples of monomers that can be copolymerized with a monomer having a norbornene structure include ⁇ -olefins having 2 to 20 carbon atoms such as ethylene, propylene, and 1-butene, and derivatives thereof; cyclobutene, cyclopentene, and cyclohexene. And non-conjugated dienes such as 1,4-hexadiene, 4-methyl-1,4-hexadiene, 5-methyl-1,4-hexadiene; and the like.
- ⁇ -olefin is preferable, and ethylene is more preferable.
- the monomer which can carry out addition copolymerization with the monomer which has a norbornene structure may be used individually by 1 type, and may be used combining two or more types by arbitrary ratios.
- An addition polymer of a monomer having a norbornene structure can be produced, for example, by polymerizing or copolymerizing a monomer in the presence of an addition polymerization catalyst.
- the hydrogenated product of the ring-opening polymer and the addition polymer described above is, for example, a carbon-carbon in a solution of the ring-opening polymer and the addition polymer in the presence of a hydrogenation catalyst containing a transition metal such as nickel or palladium. Unsaturated bonds can be produced by hydrogenation, preferably 90% or more.
- the weight average molecular weight (Mw) of the alicyclic structure-containing polymer is preferably 10,000 or more, more preferably 15,000 or more, particularly preferably 25,000 or more, preferably 100,000 or less, more preferably. Is 80,000 or less, particularly preferably 50,000 or less. When the weight average molecular weight is in such a range, the mechanical strength and moldability of the substrate are highly balanced.
- the molecular weight distribution (weight average molecular weight (Mw) / number average molecular weight (Mn)) of the alicyclic structure-containing polymer is preferably 1.0 or more, more preferably 1.2 or more, and particularly preferably 1.5 or more. Yes, preferably 10.0 or less, more preferably 4.0 or less, particularly preferably 3.5 or less.
- the weight average molecular weight (Mw) and number average molecular weight (Mn) can be measured as values in terms of polyisoprene by gel permeation chromatography using cyclohexane as a solvent. In the gel permeation chromatography described above, toluene may be used as a solvent when the sample does not dissolve in cyclohexane. When toluene is used as the solvent, the weight average molecular weight (Mw) and the number average molecular weight (Mn) can be measured as values in terms of polystyrene.
- the glass transition temperature of the alicyclic structure-containing polymer is preferably 80 ° C. or higher, more preferably 100 ° C. or higher, preferably 250 ° C. or lower, more preferably 160 ° C. or lower, and particularly preferably 140 ° C. or lower.
- the resin containing the alicyclic structure-containing polymer has a resin component (that is, an oligomer component) having a molecular weight of 2,000 or less, preferably 5% by weight or less, more preferably 3% by weight or less, and still more preferably 2% by weight or less.
- a resin component that is, an oligomer component
- the amount of the oligomer component is within the above range, generation of fine convex portions on the surface of the substrate is reduced, thickness unevenness is reduced, and surface accuracy is improved.
- Examples of the method for reducing the amount of the oligomer component include a method for selecting a polymerization catalyst and a hydrogenation catalyst, a reaction condition such as polymerization and hydrogenation, and a method for optimizing a temperature condition in a step of pelletizing a resin as a molding material. .
- the component amount of such an oligomer can be measured by the aforementioned gel permeation chromatography.
- the ratio of the alicyclic structure-containing polymer in the resin containing the alicyclic structure-containing polymer is preferably 70% by weight or more, more preferably 80% by weight or more, and particularly preferably 90% by weight or more. Thereby, the heat resistance of a base material can be raised effectively, or the surface free energy of the application surface of a base material can be made low.
- the resin forming the base material may further contain any component in combination with the above-described polymer.
- optional components include colorants such as pigments and dyes; plasticizers; fluorescent brighteners; dispersants; thermal stabilizers; light stabilizers; antistatic agents; ultraviolet absorbers; And the like. One of these may be used alone, or two or more of these may be used in combination at any ratio.
- the resin containing the alicyclic structure-containing polymer include “Zeonor 1420” and “Zeonor 1420R” manufactured by Nippon Zeon.
- the coated surface of the substrate preferably has an alignment regulating force in order to promote the alignment of the reverse wavelength polymerizable liquid crystal compound in the liquid crystalline composition layer.
- the alignment regulating force refers to a property of the coated surface that can align the reverse wavelength polymerizable liquid crystal compound in the liquid crystalline composition coated on the coated surface.
- an optically anisotropic layer can be formed on the application surface.
- An example of a method for imparting an orientation regulating force to the coated surface while keeping the surface free energy of the coated surface within the above-described range is stretching treatment. Therefore, it is preferable to use a stretched film as the substrate.
- the polymer molecules contained in the substrate can be oriented.
- the alignment control force which orientates the reverse wavelength polymerizable liquid crystal compound in the alignment direction of the molecules of the polymer contained in the substrate can be imparted to the coated surface of the substrate.
- the molecular director is substantially uniformly oriented over the entire thickness direction of the substrate.
- the stretching process is more time-dependent due to environmental influences (heat, light, oxygen, etc.) than the method of imparting alignment regulating force to the substrate only by molecular orientation near the surface of the substrate, such as rubbing treatment. It is difficult to relax the orientation regulating force. Furthermore, since the stretching treatment can suppress dust generation, scratches and foreign matter contamination as in the rubbing treatment, it is easy to obtain an optically anisotropic layer with few alignment defects.
- the stretching of the base material is preferably performed so as to impart anisotropy to the base material so that the slow axis is expressed in the base material.
- an alignment regulating force for aligning the reverse wavelength polymerizable liquid crystal compound in a direction parallel or perpendicular to the slow axis of the substrate is imparted to the surface of the substrate.
- the slow axis parallel to the stretching direction is usually obtained by orienting the polymer molecules contained in the base material in the stretching direction.
- the extending direction of the substrate can be set according to the desired alignment direction in which the reverse wavelength polymerizable liquid crystal compound is to be aligned.
- the stretching may be performed only in one direction or in two or more directions.
- the draw ratio can be set so that the birefringence ⁇ n of the base material after stretching falls within a desired range.
- the birefringence ⁇ n of the base material after stretching is preferably 0.000050 or more, more preferably 0.000070 or more, preferably 0.007500 or less, more preferably 0.007000 or less.
- the birefringence ⁇ n of the base material after stretching is equal to or more than the lower limit of the above range, it is possible to impart a good orientation regulating force to the surface of the base material.
- the birefringence ⁇ n is not more than the upper limit of the above range, the retardation of the substrate can be reduced, so that the optically anisotropic layer and the substrate can be removed without peeling the substrate from the optically anisotropic layer.
- the stretching can be performed using a stretching machine such as a tenter stretching machine.
- the coated surface of the substrate is preferably a non-treated surface that has not been surface-treated.
- the surface treatment include rubbing treatment, alignment film formation treatment, energy beam irradiation treatment, and chemical treatment.
- the energy ray irradiation treatment include corona discharge treatment, plasma treatment, electron beam irradiation treatment, and ultraviolet ray irradiation treatment.
- the chemical treatment include saponification treatment and oxidant solution treatment.
- the coated surface of the substrate is preferably a flat surface having no concave portions and convex portions from the viewpoint of improving the surface state of the optically anisotropic layer.
- the substrate may have a retardation depending on the application.
- the substrate when the multilayer film is used as an optical film such as a retardation film or an optical compensation film, the substrate preferably has retardation.
- the retardation Re of the substrate can be set according to the use of the multilayer film, and is preferably 30 nm or more, more preferably 50 nm or more, preferably 500 nm or less, more preferably 300 nm or less.
- the substrate is preferably excellent in transparency.
- the total light transmittance of the substrate is preferably 80% or more, more preferably 85% or more, and particularly preferably 88% or more.
- the haze of the substrate is preferably 5% or less, more preferably 3% or less, and particularly preferably 1% or less.
- the total light transmittance of the substrate can be measured in the wavelength range of 400 nm to 700 nm using an ultraviolet / visible spectrometer.
- the haze of a base material can be cut out into a 50 mm x 50 mm square thin film sample in the arbitrary site
- the substrate As the substrate, a single-wafer film may be used, but a long film is preferably used in order to enable production by roll-to-roll and increase production efficiency.
- the “long shape” means a shape having a length of 5 times or more with respect to the width, and preferably has a length of 10 times or more, specifically, wound in a roll shape. It refers to the shape of a film having a length that can be stored or transported.
- the slow axis of the substrate may be parallel to the longitudinal direction of the substrate or may be perpendicular to the longitudinal direction of the substrate. It may be in an oblique direction that is neither parallel nor perpendicular to the longitudinal direction.
- the specific slow axis direction of the substrate can be set according to the direction of the slow axis to be developed in the optically anisotropic layer. Examples of the angle formed by the slow axis of the substrate and the longitudinal direction of the substrate are 15 ° ⁇ 5 °, 22.5 ° ⁇ 5 °, 45 ° ⁇ 5 °, 67.5 ⁇ 5 °, and 75 °. Examples include ⁇ 5 °.
- the thickness of the substrate is not particularly limited, but is preferably 1 ⁇ m or more, more preferably 5 ⁇ m or more, particularly preferably 30 ⁇ m or more, and preferably 1000 ⁇ m from the viewpoint of facilitating productivity improvement, thinning, and weight reduction.
- it is more preferably 300 ⁇ m or less, particularly preferably 100 ⁇ m or less.
- a base material made of a thermoplastic resin such as a resin containing an alicyclic structure-containing polymer is obtained by molding a resin into a film shape to obtain a base material before stretching, and by stretching the base material before stretching. It can be manufactured by a manufacturing method including a step of obtaining a desired base material by expressing an orientation regulating force.
- Examples of the resin molding method include a melt molding method and a solution casting method.
- Examples of the melt molding method include a melt extrusion method in which molding is performed by melt extrusion, a press molding method, an inflation molding method, an injection molding method, a blow molding method, and a stretch molding method.
- the melt extrusion method, the inflation molding method, and the press molding method are preferable from the viewpoint of obtaining a base material before stretching excellent in mechanical strength and surface accuracy.
- the melt extrusion method is particularly preferable because the amount of the residual solvent can be reduced, and efficient and simple production is possible.
- the melting temperature of the resin in the extruder equipped with a die is preferably Tg + 80 ° C. or higher, more preferably Tg + 100 ° C. or higher, preferably Tg + 180 ° C. or lower, more preferably Tg + 150 ° C. or lower.
- Tg represents the glass transition temperature of the resin.
- a base material before stretching made of the resin By forming the resin into a film as described above, a base material before stretching made of the resin can be obtained. Usually, this base material before extending
- Stretching may be performed by uniaxial stretching in which stretching is performed only in one direction, or biaxial stretching in which stretching is performed in two different directions.
- biaxial stretching process a simultaneous biaxial stretching process in which stretching processes are performed simultaneously in two directions may be performed, and a sequential biaxial stretching process in which a stretching process is performed in one direction and then a stretching process is performed in another direction. May be performed.
- the stretching may be a longitudinal stretching process in which the stretching process is performed in the longitudinal direction of the substrate before stretching, a lateral stretching process in which the stretching process is performed in the width direction of the substrate before stretching, Any of the oblique stretching treatments in which the stretching treatment is performed in a diagonal direction may be performed, or a combination thereof may be performed, but the oblique stretching treatment is particularly preferable.
- the stretching method include a roll method, a float method, and a tenter method.
- the stretching temperature and the stretching ratio can be arbitrarily set within a range in which a base material having a coating surface having desired surface free energy and orientation regulating force can be obtained.
- the stretching temperature is preferably Tg-30 ° C or higher, more preferably Tg-10 ° C or higher, preferably Tg + 10 ° C or lower, more preferably Tg or lower.
- the draw ratio is preferably 1.1 times or more, more preferably 1.2 times or more, particularly preferably 1.5 times or more, preferably 30 times or less, more preferably 10 times or less, particularly preferably. 5 times or less.
- the liquid crystalline composition has a predetermined surface tension and includes a reverse wavelength polymerizable liquid crystal compound.
- This liquid crystalline composition is usually a fluid composition in an environment (for example, a temperature of 25 ° C. and a humidity of 60%) when applied to the application surface of the substrate.
- the surface tension of the liquid crystalline composition is usually 26 mN / m or more, preferably 28 mN / m or more, more preferably 30 mN / m or more, preferably 45 mN / m or less, more preferably 40 mN / m or less, particularly preferably. 35 mN / m or less.
- a liquid crystalline composition having a surface tension in such a range and containing a reverse wavelength polymerizable liquid crystal compound is applied with good coatability to a coated surface of a substrate having a low predetermined surface free energy as described above. Is possible.
- Examples of the method for keeping the surface tension of the liquid crystalline composition in the above range include, for example, appropriately selecting the type of solvent in the liquid crystalline composition and the ratio when using a plurality of solvents, and the surfactant. Appropriate selection of types, combinations and amounts.
- the surface tension of the liquid crystalline composition can be measured by the Wilhelmy method in an environment of a temperature of 25 ° C. and a humidity of 60%.
- the reverse wavelength polymerizable liquid crystal compound contained in the liquid crystal composition is a liquid crystal compound having polymerizability. Since the reverse wavelength polymerizable liquid crystal compound is a liquid crystal compound having liquid crystallinity, a liquid crystal phase can be exhibited when the reverse wavelength polymerizable liquid crystal compound is aligned. Further, since the reverse wavelength polymerizable liquid crystal compound is a compound having polymerizability, it can be polymerized while exhibiting a liquid crystal phase as described above, and can be a polymer while maintaining the molecular orientation in the liquid crystal phase.
- the reverse wavelength polymerizable liquid crystal compound is a compound capable of developing reverse wavelength dispersive birefringence.
- the compound capable of exhibiting reverse wavelength dispersive birefringence refers to a compound in which the obtained polymer exhibits reverse wavelength dispersive birefringence when used as a polymer as described above.
- Reverse wavelength dispersive birefringence refers to birefringence in which birefringence ⁇ n (450) at a wavelength of 450 nm and birefringence ⁇ n (650) at a wavelength of 650 nm satisfy the following formula (D1).
- the above-mentioned reverse wavelength polymerizable liquid crystal compound capable of exhibiting such reverse wavelength dispersive birefringence can usually exhibit greater birefringence as the measurement wavelength is longer. Therefore, normally, the birefringence of the polymer obtained by polymerizing the reverse wavelength polymerizable liquid crystal compound as described above satisfies the following formula (D2).
- ⁇ n (550) represents birefringence at a measurement wavelength of 550 nm.
- ⁇ n (450) ⁇ n (650) (D1) ⁇ n (450) ⁇ n (550) ⁇ n (650) (D2)
- the reverse wavelength polymerizable liquid crystal compound for example, a compound containing a main chain mesogen and a side chain mesogen bonded to the main chain mesogen in the molecule of the reverse wavelength polymerizable liquid crystal compound can be used.
- the reverse wavelength polymerizable liquid crystal compound containing a main chain mesogen and a side chain mesogen the side chain mesogen can be aligned in a direction different from the main chain mesogen in a state where the reverse wavelength polymerizable liquid crystal compound is aligned. Therefore, in the polymer obtained by polymerizing the reverse wavelength polymerizable liquid crystal compound while maintaining such orientation, the main chain mesogen and the side chain mesogen can be oriented in different directions. With this orientation, the polymer can exhibit reverse wavelength dispersive birefringence.
- the molecular weight of the reverse wavelength polymerizable liquid crystal compound is preferably 300 or more, more preferably 700 or more, particularly preferably 1000 or more, preferably 2000 or less, more preferably 1700 or less, and particularly preferably 1500 or less.
- the reverse wavelength polymerizable liquid crystal compound having the molecular weight as described above indicates that the reverse wavelength polymerizable liquid crystal compound is a monomer.
- the coating property of the liquid crystal composition can be made particularly good.
- the reverse wavelength polymerizable liquid crystal compound may be used alone or in combination of two or more at any ratio.
- Suitable reverse wavelength polymerizable liquid crystal compounds include compounds represented by the following formula (I).
- the compound represented by the formula (I) may be referred to as “compound (I)” as appropriate.
- the main chain mesogen 1a and the side chain mesogen 1b cross each other.
- the main chain mesogen 1a and the side chain mesogen 1b can be combined into one mesogen, in the present invention, they are divided into two mesogens.
- the refractive index in the major axis direction of the main chain mesogen 1a is n1
- the refractive index in the major axis direction of the side chain mesogen 1b is n2.
- the absolute value and the wavelength dispersion of the refractive index n1 usually depend on the molecular structure of the main chain mesogen 1a.
- the absolute value and wavelength dispersion of the refractive index n2 usually depend on the molecular structure of the side chain mesogen 1b.
- the reverse wavelength polymerizable liquid crystal compound normally performs a rotational motion with the major axis direction of the main chain mesogen 1a as the rotation axis, and the refractive indexes n1 and n2 referred to here are the refraction as a rotating body. Represents the rate.
- the absolute value of the refractive index n1 is larger than the absolute value of the refractive index n2 due to the molecular structure of the main chain mesogen 1a and the side chain mesogen 1b. Furthermore, the refractive indexes n1 and n2 usually show forward wavelength dispersion.
- the forward wavelength dispersive refractive index represents a refractive index in which the absolute value of the refractive index decreases as the measurement wavelength increases. Since the refractive index n1 of the main chain mesogen 1a has a small forward wavelength dispersion, the refractive index measured at a long wavelength is not significantly smaller than the refractive index measured at a short wavelength.
- the refractive index n2 of the side chain mesogen 1b has a large forward wavelength dispersion, the refractive index measured at the long wavelength is significantly smaller than the refractive index measured at the short wavelength. Therefore, when the measurement wavelength is short, the difference ⁇ n between the refractive index n1 and the refractive index n2 is small, and when the measurement wavelength is long, the difference ⁇ n between the refractive index n1 and the refractive index n2 is large. In this way, the reverse wavelength dispersive birefringence can be expressed from the main chain mesogen 1a and the side chain mesogen 1b.
- Y 1 to Y 8 are each independently a chemical single bond, —O—, —S—, —O—C ( ⁇ O) —, —C ( ⁇ O) —.
- R 1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.
- alkyl group having 1 to 6 carbon atoms of R 1 include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, t-butyl group, n-pentyl group, An n-hexyl group may be mentioned.
- R 1 is preferably a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.
- Y 1 to Y 8 are each independently a chemical single bond, —O—, —O—C ( ⁇ O) —, —C ( ⁇ O) —O—, or , —O—C ( ⁇ O) —O— is preferable.
- G 1 and G 2 each independently represent a divalent aliphatic group having 1 to 20 carbon atoms, which may have a substituent.
- the divalent aliphatic group having 1 to 20 carbon atoms include a divalent aliphatic group having a chain structure such as an alkylene group having 1 to 20 carbon atoms and an alkenylene group having 2 to 20 carbon atoms; And divalent aliphatic groups such as a cycloalkanediyl group having 3 to 20 carbon atoms, a cycloalkenediyl group having 4 to 20 carbon atoms, and a divalent alicyclic fused ring group having 10 to 30 carbon atoms.
- Examples of the substituent for the divalent aliphatic group represented by G 1 and G 2 include halogen atoms such as fluorine atom, chlorine atom, bromine atom and iodine atom; methoxy group, ethoxy group, n-propoxy group, isopropoxy group
- halogen atoms such as fluorine atom, chlorine atom, bromine atom and iodine atom
- methoxy group, ethoxy group, n-propoxy group isopropoxy group
- An alkoxy group having 1 to 6 carbon atoms such as an n-butoxy group, a sec-butoxy group, a t-butoxy group, an n-pentyloxy group and an n-hexyloxy group.
- a fluorine atom, a methoxy group, and an ethoxy group are preferable.
- the aliphatic group includes one or more —O—, —S—, —O—C ( ⁇ O) —, —C ( ⁇ O) —O—, —O—C per aliphatic group.
- ( ⁇ O) —O—, —NR 2 —C ( ⁇ O) —, —C ( ⁇ O) —NR 2 —, —NR 2 —, or —C ( ⁇ O) — may be present. Good. However, the case where two or more of —O— or —S— are adjacent to each other is excluded.
- R 2 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and is preferably a hydrogen atom or a methyl group.
- the group intervening in the aliphatic group is preferably —O—, —O—C ( ⁇ O) —, —C ( ⁇ O) —O—, —C ( ⁇ O) —.
- G 1 and G 2 are each independently an alkylene group having 1 to 20 carbon atoms, an alkenylene group having 2 to 20 carbon atoms, or the like from the viewpoint of better expressing the desired effect of the present invention.
- a divalent aliphatic group having a chain structure is preferable.
- Z 1 and Z 2 each independently represents an alkenyl group having 2 to 10 carbon atoms which may be substituted with a halogen atom.
- the alkenyl group preferably has 2 to 6 carbon atoms.
- Examples of the halogen atom that is a substituent of the alkenyl group of Z 1 and Z 2 include a fluorine atom, a chlorine atom, a bromine atom, and the like, and a chlorine atom is preferable.
- alkenyl group having 2 to 10 carbon atoms of Z 1 and Z 2 include CH 2 ⁇ CH—, CH 2 ⁇ C (CH 3 ) —, CH 2 ⁇ CH—CH 2 —, CH 3 —CH ⁇ .
- Z 1 and Z 2 are each independently CH 2 ⁇ CH—, CH 2 ⁇ C (CH 3 ) —, CH 2 ⁇ C (Cl) —, CH 2 ⁇ CH—CH 2 —, CH 2 ⁇ C (CH 3 ) —CH 2 —, or CH 2 ⁇ C (CH 3 ) —CH 2 —CH 2 — is preferred, and CH 2 ⁇ CH—, CH 2 ⁇ C (CH 3 ) — or CH 2 ⁇ C (Cl) — is more preferred, and CH 2 ⁇ CH— is particularly preferred.
- a x represents an organic group having 2 to 30 carbon atoms having at least one aromatic ring selected from the group consisting of an aromatic hydrocarbon ring and an aromatic heterocyclic ring.
- “Aromatic ring” means a cyclic structure having a broad sense of aromaticity according to the Huckle rule, that is, a cyclic conjugated structure having (4n + 2) ⁇ electrons, and sulfur, oxygen, typified by thiophene, furan, benzothiazole, etc. It means a cyclic structure in which a lone electron pair of a hetero atom such as nitrogen is involved in the ⁇ -electron system and exhibits aromaticity.
- the organic group having 2 to 30 carbon atoms and having at least one aromatic ring selected from the group consisting of an aromatic hydrocarbon ring and an aromatic heterocyclic ring of A x may have a plurality of aromatic rings. And having both an aromatic hydrocarbon ring and an aromatic heterocycle.
- aromatic hydrocarbon ring examples include a benzene ring, a naphthalene ring, and an anthracene ring.
- aromatic heterocyclic ring examples include monocyclic aromatic heterocyclic rings such as a pyrrole ring, a furan ring, a thiophene ring, a pyridine ring, a pyridazine ring, a pyrimidine ring, a pyrazine ring, a pyrazole ring, an imidazole ring, an oxazole ring, and a thiazole ring; Benzothiazole ring, benzoxazole ring, quinoline ring, phthalazine ring, benzimidazole ring, benzopyrazole ring, benzofuran ring, benzothiophene ring, thiazolopyridine ring, oxazolopyridine ring, thiazolopyrazine ring,
- the aromatic ring of A x may have a substituent.
- substituents include halogen atoms such as fluorine atom and chlorine atom; cyano group; alkyl group having 1 to 6 carbon atoms such as methyl group, ethyl group and propyl group; and carbon number 2 such as vinyl group and allyl group.
- R 5 represents an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or a cycloalkyl group having 3 to 12 carbon atoms
- R 6 is a carbon atom similar to R 4 described later. It represents an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, a phenyl group, or a 4-methylphenyl group.
- the aromatic ring within A x may have a plurality of identical or different substituents, bonded two adjacent substituents together may form a ring.
- the ring formed may be a monocycle, a condensed polycycle, an unsaturated ring, or a saturated ring.
- the “carbon number” of the organic group having 2 to 30 carbon atoms in A x means the total number of carbon atoms in the whole organic group not including the carbon atom of the substituent (the same applies to A y described later). .
- Examples of the organic group having 2 to 30 carbon atoms and having at least one aromatic ring selected from the group consisting of an aromatic hydrocarbon ring and an aromatic heterocycle of A x include an aromatic hydrocarbon ring group; A heterocyclic group; an alkyl group having 3 to 30 carbon atoms having at least one aromatic ring selected from the group consisting of an aromatic hydrocarbon ring and an aromatic heterocyclic ring; a group consisting of an aromatic hydrocarbon ring and an aromatic heterocyclic ring An alkenyl group having 4 to 30 carbon atoms having at least one aromatic ring selected from the group consisting of: 4 to 30 carbon atoms having at least one aromatic ring selected from the group consisting of an aromatic hydrocarbon ring and an aromatic heterocyclic ring An alkynyl group;
- Ax is not limited to the following.
- “-” represents a bond extending from any position of the ring (the same applies hereinafter).
- E represents NR 6a , an oxygen atom or a sulfur atom.
- R 6a represents a hydrogen atom; or an alkyl group having 1 to 6 carbon atoms such as a methyl group, an ethyl group, or a propyl group.
- X, Y and Z each independently represent NR 7 , oxygen atom, sulfur atom, —SO— or —SO 2 — (provided that oxygen atom, sulfur atom, —SO—, Except where —SO 2 — are adjacent to each other).
- R 7 represents the same hydrogen atom as R 6a ; or an alkyl group having 1 to 6 carbon atoms such as a methyl group, an ethyl group, or a propyl group.
- a x as described above more be an aromatic hydrocarbon ring group having 6 to 30 carbon atoms, or is preferably an aromatic heterocyclic group having 4 to 30 carbon atoms, which is one of the groups shown below preferable.
- a x is more preferably any of the groups shown below.
- Ring within A x may have a substituent.
- substituents include halogen atoms such as fluorine atom and chlorine atom; cyano group; alkyl group having 1 to 6 carbon atoms such as methyl group, ethyl group and propyl group; and carbon number 2 such as vinyl group and allyl group.
- substituent a halogen atom, a cyano group, an alkyl group having 1 to 6 carbon atoms, and an alkoxy having 1
- the ring of A x may have a plurality of the same or different substituents, and two adjacent substituents may be bonded together to form a ring.
- the ring formed may be a single ring or a condensed polycycle.
- the “carbon number” of the organic group having 2 to 30 carbon atoms in A x means the total number of carbon atoms in the whole organic group not including the carbon atom of the substituent (the same applies to A y described later).
- a y is a hydrogen atom, an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted alkenyl group having 2 to 20 carbon atoms, A cycloalkyl group having 3 to 12 carbon atoms which may have a substituent, an alkynyl group having 2 to 20 carbon atoms which may have a substituent, —C ( ⁇ O) —R 3 , —SO 2
- R 3 has an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted alkenyl group having 2 to 20 carbon atoms, and a substituent. Or a cycloalkyl group having 3 to 12 carbon atoms or an aromatic hydrocarbon ring group having 5 to 12 carbon atoms.
- R 4 represents an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, a phenyl group, or a 4-methylphenyl group.
- R 9 is an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted alkenyl group having 2 to 20 carbon atoms, and an optionally substituted carbon. It represents a cycloalkyl group having 3 to 12 carbon atoms or an aromatic group having 5 to 20 carbon atoms which may have a substituent.
- alkyl group having 1 to 20 carbon atoms alkyl group substituents to 1 carbon atoms which may have a 20, for example, a methyl group, an ethyl group, n- propyl group, an isopropyl radical, n -Butyl group, isobutyl group, 1-methylpentyl group, 1-ethylpentyl group, sec-butyl group, t-butyl group, n-pentyl group, isopentyl group, neopentyl group, n-hexyl group, isohexyl group, n -Heptyl, n-octyl, n-nonyl, n-decyl, n-undecyl, n-dodecyl, n-tridecyl, n-tetradecyl, n-pentadecyl, n-hexadecyl
- the alkenyl group having 2 to 20 carbon atoms alkenyl group substituents to 2 carbon atoms which may have a 20, for example, vinyl group, propenyl group, isopropenyl group, butenyl group, isobutenyl group Pentenyl group, hexenyl group, heptenyl group, octenyl group, decenyl group, undecenyl group, dodecenyl group, tridecenyl group, tetradecenyl group, pentadecenyl group, hexadecenyl group, heptadecenyl group, octadecenyl group, nonadecenyl group, icocenyl group.
- the carbon number of the alkenyl group having 2 to 20 carbon atoms which may have a substituent is preferably 2 to 12.
- the cycloalkyl group having 3 to 12 carbon atoms a cycloalkyl group which has 1-3 carbon atoms which may 12 have a substituent, for example, cyclopropyl group, cyclobutyl group, cyclopentyl group, cyclohexyl group, A cyclooctyl group is mentioned.
- alkynyl group having 2 to 20 carbon atoms alkynyl group substituents to 2 carbon atoms which may have a 20, for example, ethynyl group, propynyl group, 2-propynyl group (propargyl group), Butynyl, 2-butynyl, 3-butynyl, pentynyl, 2-pentynyl, hexynyl, 5-hexynyl, heptynyl, octynyl, 2-octynyl, nonanyl, decanyl, 7-decanyl Is mentioned.
- Examples of the substituent of the alkyl group having 1 to 20 carbon atoms that may have a substituent and the alkenyl group having 2 to 20 carbon atoms that may have a substituent of A y include, for example, a fluorine atom Halogen atom such as chlorine atom; cyano group; substituted amino group such as dimethylamino group; alkoxy group having 1 to 20 carbon atoms such as methoxy group, ethoxy group, isopropoxy group, butoxy group; methoxymethoxy group, methoxyethoxy group An alkoxy group having 1 to 12 carbon atoms substituted by an alkoxy group having 1 to 12 carbon atoms, such as nitro group; an aryl group such as phenyl group or naphthyl group; a carbon number such as cyclopropyl group, cyclopentyl group, cyclohexyl group, etc.
- a fluorine atom Halogen atom such as chlorine atom
- a fluoroalkoxy group having 1 to 12 carbon atoms in which at least one is substituted with a fluorine atom, such as a group, —CH 2 CF 3 ; benzofuryl group; benzopyranyl group; benzodioxolyl group; benzodioxanyl group; ( O)
- R 7a and R 10 are each independently an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, or a 6 to 12 carbon atoms.
- R 8a represents an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, a phenyl group, or a 4-methylphenyl group, similar to R 4 described above.
- Examples of the substituent of the cycloalkyl group having 3 to 12 carbon atoms which may have a substituent of A y include, for example, a halogen atom such as a fluorine atom and a chlorine atom; a cyano group; a substituted amino group such as a dimethylamino group Groups: alkyl groups having 1 to 6 carbon atoms such as methyl, ethyl, and propyl groups; alkoxy groups having 1 to 6 carbon atoms such as methoxy, ethoxy, and isopropoxy groups; nitro groups; phenyl groups, naphthyl groups, and the like A cycloalkyl group having 3 to 8 carbon atoms such as a cyclopropyl group, a cyclopentyl group, and a cyclohexyl group; —C ( ⁇ O) —R 7a ; —C ( ⁇ O) —OR 7a ; —SO 2 R 8a A hydroxy
- Examples of the substituent of the alkynyl group having 2 to 20 carbon atoms that may have a substituent of A y include, for example, an alkyl group having 1 to 20 carbon atoms that may have a substituent, and a substituent. Examples thereof include the same substituents as those of the alkenyl group having 2 to 20 carbon atoms which may have a group.
- R 3 may have a C 1-20 alkyl group which may have a substituent, or may have a substituent. It represents a good alkenyl group having 2 to 20 carbon atoms, an optionally substituted cycloalkyl group having 3 to 12 carbon atoms, or an aromatic hydrocarbon ring group having 5 to 12 carbon atoms. Specific examples thereof include the alkyl group having 1 to 20 carbon atoms which may have a substituent, the alkenyl group having 2 to 20 carbon atoms which may have a substituent, and a substituent of the above Ay.
- cycloalkyl group which has carbon atoms 3 be ⁇ 12 have a group; and, the same as the number of carbon atoms of the aromatic hydrocarbon ring group described in the a x is given as an example of from 5 to 12 Things.
- R 4 is an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, a phenyl group, or a 4-methylphenyl group To express.
- Specific examples of the alkyl group having 1 to 20 carbon atoms and the alkenyl group having 2 to 20 carbon atoms in R 4 include the alkyl group having 1 to 20 carbon atoms and the alkenyl group having 2 to 20 carbon atoms in the above Ay . The thing similar to what was mentioned as an example is mentioned.
- R 9 has an optionally substituted alkyl group having 1 to 20 carbon atoms and a substituent.
- Examples of the organic group having 2 to 30 carbon atoms and having at least one aromatic ring selected from the group consisting of an aromatic hydrocarbon ring and an aromatic heterocyclic ring for A y are the same as those described for A x above. Is mentioned.
- a hydrogen atom an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted alkenyl group having 2 to 20 carbon atoms, and a substituent
- a y includes a hydrogen atom, an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted alkenyl group having 2 to 20 carbon atoms, and a substituent.
- a hydrogen ring group, an aromatic heterocyclic group having 3 to 9 carbon atoms which may have a substituent, and a group represented by —C ( ⁇ O) —R 3 or —SO 2 —R 4 are more preferable.
- R 3 and R 4 represent the same meaning as described above.
- an alkyl group having 1 to 20 carbon atoms which may have a substituent an alkenyl group having 2 to 20 carbon atoms which may have a substituent, and an optionally substituted carbon
- substituent of the alkynyl group having 2 to 20 carbon atoms include a halogen atom, a cyano group, an alkoxy group having 1 to 20 carbon atoms, an alkoxy group having 1 to 12 carbon atoms substituted with an alkoxy group having 1 to 12 carbon atoms, phenyl Group, cyclohexyl group, C2-C12 cyclic ether group, C6-C14 aryloxy group, hydroxyl group, benzodioxanyl group, phenylsulfonyl group, 4-methylphenylsulfonyl group, benzoyl group, -SR 10 Is preferred.
- R 10 represents the same meaning as described above.
- a y has a cycloalkyl group having 3 to 12 carbon atoms which may have a substituent, an aromatic hydrocarbon ring group having 6 to 12 carbon atoms which may have a substituent, and a substituent.
- the substituent of the aromatic heterocyclic group having 3 to 9 carbon atoms a fluorine atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, and a cyano group are preferable.
- a x and A y may be combined to form a ring.
- a ring examples include an unsaturated heterocyclic ring having 4 to 30 carbon atoms and an unsaturated carbocyclic ring having 6 to 30 carbon atoms, which may have a substituent.
- the unsaturated heterocyclic ring having 4 to 30 carbon atoms and the unsaturated carbocyclic ring having 6 to 30 carbon atoms are not particularly limited, and may or may not have aromaticity.
- Examples of the ring formed by combining A x and A y include the rings shown below.
- the ring shown below is the one in the formula (I).
- the total number of ⁇ electrons contained in A x and A y is preferably 4 or more, more preferably 6 or more, preferably 24 or less, more preferably from the viewpoint of better expressing the desired effect of the present invention. 20 or less, particularly preferably 18 or less.
- a x and A y include the following combination ( ⁇ ) and combination ( ⁇ ).
- a x is an aromatic hydrocarbon ring group or aromatic heterocyclic group having 4 to 30 carbon atoms
- a y is a hydrogen atom, a cycloalkyl group having 3 to 8 carbon atoms, (halogen atom, cyano group An alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or a cycloalkyl group having 3 to 8 carbon atoms) as a substituent.
- An aromatic heterocyclic group having 3 to 9 carbon atoms which may have a cyclic group (a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or a cyano group), An optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted alkenyl group having 1 to 20 carbon atoms, or an optionally substituted carbon group having 2 carbon atoms.
- the substituent is a halogen atom, a cyano group, 1 carbon atom
- a combination that is any one of an oxy group, a hydroxyl group, a benzodioxanyl group, a benzenesulfonyl group, a benzoyl group, and —SR 10 .
- ( ⁇ ) A combination in which A x and A y together form an unsaturated heterocyclic ring or unsaturated carbocyclic ring.
- R 10 represents the same meaning as described above.
- a x and A y include the following combination ( ⁇ ).
- a x is any of the groups having the following structure, and A y is a hydrogen atom, a cycloalkyl group having 3 to 8 carbon atoms, (a halogen atom, a cyano group, an alkyl group having 1 to 6 carbon atoms, carbon An aromatic hydrocarbon ring group having 6 to 12 carbon atoms which may have a substituent having an alkoxy group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 8 carbon atoms) (halogen atom, 1 to An alkyl group having 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or a cyano group) as an optionally substituted aromatic heterocyclic group having 3 to 9 carbon atoms or an optionally substituted carbon number.
- R 10 represents the same meaning as described above.
- a particularly preferred combination of A x and A y includes the following combination ( ⁇ ).
- a x is any of the groups having the following structure, and A y is a hydrogen atom, a cycloalkyl group having 3 to 8 carbon atoms, a (halogen atom, a cyano group, an alkyl group having 1 to 6 carbon atoms, carbon An aromatic hydrocarbon ring group having 6 to 12 carbon atoms which may have a substituent having an alkoxy group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 8 carbon atoms) (halogen atom, 1 to An alkyl group having 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or a cyano group) as an optionally substituted aromatic heterocyclic group having 3 to 9 carbon atoms or an optionally substituted carbon number.
- X represents the same meaning as described above.
- R 10 represents the same meaning as described above.
- a 1 represents a trivalent aromatic group which may have a substituent.
- the trivalent aromatic group may be a trivalent carbocyclic aromatic group or a trivalent heterocyclic aromatic group. From the viewpoint of better expressing the desired effect of the present invention, a trivalent carbocyclic aromatic group is preferable, a trivalent benzene ring group or a trivalent naphthalene ring group is more preferable, and a trivalent represented by the following formula: The benzene ring group or trivalent naphthalene ring group is more preferable.
- the substituents Y 1 and Y 2 are described for convenience in order to clarify the bonding state (Y 1 and Y 2 represent the same meaning as described above, and the same applies hereinafter). .
- a 1 groups represented by the following formulas (A11) to (A25) are more preferable.
- A13 groups represented by the following formulas (A11), (A13), (A15), (A19), and (A23) are particularly preferred.
- Examples of the substituent that the trivalent aromatic group of A 1 may have include the same groups as those described as the substituent of the aromatic ring of A x .
- a 1 preferably has no substituent.
- a 2 and A 3 each independently represent a C 3-30 divalent alicyclic hydrocarbon group which may have a substituent.
- Examples of the divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms include a cycloalkanediyl group having 3 to 30 carbon atoms and a divalent alicyclic condensed ring group having 10 to 30 carbon atoms.
- Examples of the cycloalkanediyl group having 3 to 30 carbon atoms include cyclopropanediyl group; cyclobutanediyl group such as cyclobutane-1,2-diyl group and cyclobutane-1,3-diyl group; cyclopentane-1,2- Cyclopentanediyl groups such as diyl groups, cyclopentane-1,3-diyl groups; cyclohexanediyl groups such as cyclohexane-1,2-diyl groups, cyclohexane-1,3-diyl groups, cyclohexane-1,4-diyl groups Groups: cycloheptane-1,2-diyl group, cycloheptane-1,3-diyl group, cycloheptanediyl group such as cycloheptane-1,4-diyl group; cyclo
- Tandiyl group cyclodecane-1,2-diyl group, cyclodecane-1,3-diyl group, cyclodecane-1,4-diyl group, cyclodecane-1,5-diyl group, etc .
- cyclodecane-1 Cyclododecanediyl groups such as 2-diyl, cyclododecane-1,3-diyl, cyclododecane-1,4-diyl, cyclododecane-1,5-diyl
- Examples of the divalent alicyclic fused ring group having 10 to 30 carbon atoms include a decalindiyl group such as a decalin-2,5-diyl group and a decalin-2,7-diyl group; an adamantane-1,2-diyl group An adamantanediyl group such as an adamantane-1,3-diyl group; a bicyclo [2.2.1] heptane-2,3-diyl group, a bicyclo [2.2.1] heptane-2,5-diyl group And bicyclo [2.2.1] heptanediyl group such as bicyclo [2.2.1] heptane-2,6-diyl group.
- a decalindiyl group such as a decalin-2,5-diyl group and a decalin-2,7-diyl group
- These divalent alicyclic hydrocarbon groups may have a substituent at any position.
- substituents include the same as those described as substituents of the aromatic ring of the A x.
- a 2 and A 3 a divalent alicyclic hydrocarbon group having 3 to 12 carbon atoms is preferable, a cycloalkanediyl group having 3 to 12 carbon atoms is more preferable, and the following formula (A31) to A group represented by (A34) is more preferred, and a group represented by the following formula (A32) is particularly preferred.
- the divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms is based on a difference in configuration of carbon atoms bonded to Y 1 and Y 3 (or Y 2 and Y 4 ).
- Stereoisomers can exist.
- a cis-type isomer (A32a) and a trans-type isomer (A32b) may exist.
- the divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms may be cis, trans, or a mixture of cis and trans isomers.
- the trans-type or cis-type is preferable because the orientation is good, and the trans-type is more preferable.
- a 4 and A 5 each independently represents a divalent aromatic group having 6 to 30 carbon atoms which may have a substituent.
- the aromatic groups of A 4 and A 5 may be monocyclic or polycyclic.
- Preferable specific examples of A 4 and A 5 include the following.
- the divalent aromatic groups of A 4 and A 5 may have a substituent at any position.
- the substituent include a halogen atom, a cyano group, a hydroxyl group, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a nitro group, and a —C ( ⁇ O) —OR 8b group; Can be mentioned.
- R 8b is an alkyl group having 1 to 6 carbon atoms.
- a halogen atom, an alkyl group having 1 to 6 carbon atoms, and an alkoxy group are preferable.
- the halogen atom is more preferably a fluorine atom
- the alkyl group having 1 to 6 carbon atoms is more preferably a methyl group, an ethyl group or a propyl group
- the alkoxy group is more preferably a methoxy group or an ethoxy group.
- a 4 and A 5 may each independently have a substituent, and the following formulas (A41) and (A42) Or the group represented by (A43) is more preferable, and the group represented by the formula (A41) which may have a substituent is particularly preferable.
- Q 1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms which may have a substituent.
- the alkyl group having 1 to 6 carbon atoms which may have a substituent include those having 1 to 20 carbon atoms among the alkyl groups having 1 to 20 carbon atoms which may have a substituent described in the above Ay. ⁇ 6.
- Q 1 is preferably a hydrogen atom and an alkyl group having 1 to 6 carbon atoms, more preferably a hydrogen atom and a methyl group.
- n and n each independently represents 0 or 1.
- m is preferably 1, and n is preferably 1.
- Compound (I) can be produced, for example, by the reaction shown below.
- compound (I) can be produced by reacting the hydrazine compound represented by formula (3) with the carbonyl compound represented by formula (4).
- the hydrazine compound represented by the formula (3) may be referred to as “hydrazine compound (3)” as appropriate.
- the carbonyl compound represented by the formula (4) may be referred to as “carbonyl compound (4)” as appropriate.
- the molar ratio of “hydrazine compound (3): carbonyl compound (4)” is preferably 1: 2 to 2: 1, more preferably 1: 1.5 to 1.5: 1.
- the reaction system may contain an acid catalyst such as an organic acid such as ( ⁇ ) -10-camphorsulfonic acid and paratoluenesulfonic acid; an inorganic acid such as hydrochloric acid and sulfuric acid;
- an acid catalyst By using an acid catalyst, the reaction time may be shortened and the yield may be improved.
- the amount of the acid catalyst is usually 0.001 mol to 1 mol with respect to 1 mol of the carbonyl compound (4).
- an acid catalyst may be mix
- a solvent inert to the reaction can be used.
- the solvent include alcohol solvents such as methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, sec-butyl alcohol, t-butyl alcohol; diethyl ether, tetrahydrofuran, 1, Ether solvents such as 2-dimethoxyethane, 1,4-dioxane and cyclopentyl methyl ether; ester solvents such as ethyl acetate, propyl acetate and methyl propionate; aromatic hydrocarbon solvents such as benzene, toluene and xylene; n -Aliphatic hydrocarbon solvents such as pentane, n-hexane, n-heptane; amide solvents such as N, N-dimethylformamide, N-methylpyrrolidone, hexa
- the amount of solvent used is not particularly limited, and can be set in consideration of the type of compound used, reaction scale, and the like.
- the specific amount of the solvent used is usually 1 to 100 g with respect to 1 g of the hydrazine compound (3).
- the reaction can proceed smoothly in a temperature range of usually ⁇ 10 ° C. or higher and lower than the boiling point of the solvent used.
- the reaction time for each reaction depends on the reaction scale, but is usually from several minutes to several hours.
- the hydrazine compound (3) can be produced as follows.
- a x and A y represent the same meaning as described above.
- X a represents a leaving group such as a halogen atom, a methanesulfonyloxy group, and a p-toluenesulfonyloxy group.
- the corresponding hydrazine compound (3a) can be obtained by reacting the compound represented by formula (2a) with hydrazine (1) in an appropriate solvent.
- the molar ratio of “compound (2a): hydrazine (1)” in this reaction is preferably 1: 1 to 1:20, more preferably 1: 2 to 1:10.
- the hydrazine compound (3) can be obtained by reacting the hydrazine compound (3a) with the compound represented by the formula (2b).
- hydrazine (1) a monohydrate can be usually used.
- hydrazine (1) a commercially available product can be used as it is.
- a solvent inert to the reaction can be used.
- the solvent include alcohol solvents such as methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, sec-butyl alcohol, t-butyl alcohol; diethyl ether, tetrahydrofuran, 1, Ether solvents such as 2-dimethoxyethane, 1,4-dioxane and cyclopentyl methyl ether; aromatic hydrocarbon solvents such as benzene, toluene and xylene; aliphatic carbonization such as n-pentane, n-hexane and n-heptane Hydrogen solvents; amide solvents such as N, N-dimethylformamide, N-methylpyrrolidone and hexamethylphosphoric triamide; sulfur-containing solvents such as dimethyl sulfoxide and sulfolane
- the amount of solvent used is not particularly limited, and can be set in consideration of the type of compound used, reaction scale, and the like.
- the specific amount of the solvent used is usually 1 to 100 g with respect to 1 g of hydrazine.
- the reaction can proceed smoothly in a temperature range of usually ⁇ 10 ° C. or higher and lower than the boiling point of the solvent used.
- the reaction time for each reaction depends on the reaction scale, but is usually from several minutes to several hours.
- the hydrazine compound (3) can also be produced by reducing the diazonium salt (5) using a known method as follows.
- X b ⁇ represents an anion which is a counter ion for diazonium.
- X b- include inorganic anions such as hexafluorophosphate ion, borofluoride ion, chloride ion, sulfate ion; polyfluoroalkylcarboxylate ion, polyfluoroalkylsulfonate ion, tetraphenylborate Organic anions such as ions, aromatic carboxylate ions, and aromatic sulfonate ions.
- the reducing agent used in the above reaction examples include a metal salt reducing agent.
- the metal salt reducing agent is generally a compound containing a low-valent metal, or a compound composed of a metal ion and a hydride source (“Organic Synthesis Experiment Method Handbook”, 1990, published by Maruzen Co., Ltd., edited by the Society of Synthetic Organic Chemistry, Japan) Page).
- R is a carbon number of 1 to 6
- iBu represents an isobutyl group.
- the diazonium salt (5) can be produced from a compound such as aniline by a conventional method.
- Formation of an ether bond can be performed as follows.
- D1-hal hal represents a halogen atom; the same shall apply hereinafter
- D2-OMet Metal represents an alkali metal (mainly sodium). The same) is mixed and condensed (Williamson synthesis).
- D1 and D2 represent arbitrary organic groups (the same applies hereinafter).
- a compound represented by the formula: D1-hal and a compound represented by the formula: D2-OH are mixed and condensed in the presence of a base such as sodium hydroxide or potassium hydroxide.
- a compound represented by the formula: D1-J J represents an epoxy group
- a compound represented by the formula: D2-OH in the presence of a base such as sodium hydroxide or potassium hydroxide. Mix and condense.
- a compound represented by the formula: D1-OFN (OFN represents a group having an unsaturated bond) and a compound represented by the formula: D2-OMet, such as sodium hydroxide, potassium hydroxide, etc. In the presence of a base, they are mixed and subjected to an addition reaction.
- a compound represented by the formula: D1-hal and a compound represented by the formula: D2-OMet are mixed and condensed in the presence of copper or cuprous chloride (Ullman condensation).
- Formation of an ester bond and an amide bond can be performed as follows.
- a dehydrating condensing agent N, N-dicyclohexylcarbodiimide, etc.
- a compound represented by the formula: D1-CO-hal is obtained by allowing a halogenating agent to act on the compound represented by the formula: D1-COOH, and this is combined with the formula: D2-OH or D2-
- the compound represented by NH 2 is reacted in the presence of a base.
- the carbonyl compound (4) can be produced by the method shown in the following reaction formula.
- L 1 and L 2 are Each independently represents a leaving group such as a hydroxyl group, a halogen atom, a methanesulfonyloxy group, a p-toluenesulfonyloxy group, etc.
- -Y 1a represents a group capable of reacting with -L 1 to become -Y 1- ;
- —Y 2a represents a group that can react with —L 2 to become —Y 2 —.
- an ether bond (—O—), an ester bond (—C ( ⁇ O) —O—, —O—C ( ⁇ O) —), or a carbonate bond (—O—)
- the compound represented by the formula (6d) is converted into the compound represented by the formula (7a) and then the compound represented by the formula (7b).
- the carbonyl compound (4) can be produced by reaction.
- Y 1 is a group represented by the formula: Y 11 —C ( ⁇ O) —O—, and the formula: Z 2 —Y 8 —G 2 —Y 6 —A 5 — (Y 4 -A 3) m -Y 2 - is a group represented by the formula: Z 1 -Y 7 -G 1 -Y 5 -A 4 - is represented by - (Y 3 -A 2) n -Y 1
- the production method of compound (4 ′) which is the same as the group, is shown below.
- Y 3 , Y 5 , Y 7 , G 1 , Z 1 , A 1 , A 2 , A 4 , Q 1 , n and L 1 represent the same meaning as described above.
- Y 11 represents Y 11.
- —C ( ⁇ O) —O— represents a group that becomes Y 1.
- Y 1 represents the same meaning as described above.
- the compound by reacting the dihydroxy compound represented by formula (6) (compound (6)) and the compound represented by formula (7) (compound (7)) is obtained.
- (4 ′) can be produced.
- the molar ratio of “compound (6): compound (7)” in this reaction is preferably 1: 2 to 1: 4, more preferably 1: 2 to 1: 3.
- the target compound (4 ') can be obtained with high selectivity and high yield.
- compound (7) is a compound (carboxylic acid) in which L 1 is a hydroxyl group
- a dehydrating condensing agent such as 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride, dicyclohexylcarbodiimide, etc.
- the target product can be obtained by reacting with.
- the amount of the dehydrating condensing agent to be used is generally 1 mol-3 mol per 1 mol of compound (7).
- the compound (7) is a compound (carboxylic acid) in which L 1 is a hydroxyl group, sulfonyl halides such as methanesulfonyl chloride and p-toluenesulfonyl chloride, and triethylamine, diisopropylethylamine, pyridine, 4-
- the target product can also be obtained by reacting in the presence of a base such as (dimethylamino) pyridine.
- the amount of the sulfonyl halide to be used is generally 1 mol-3 mol per 1 mol of compound (7).
- the amount of the base to be used is generally 1 mol-3 mol per 1 mol of compound (7).
- a compound (mixed acid anhydride) in which L 1 is a sulfonyloxy group may be isolated and the following reaction may be performed.
- the desired product can be obtained by reacting in the presence of a base.
- a base include organic bases such as triethylamine and pyridine; and inorganic bases such as sodium hydroxide, sodium carbonate, and sodium bicarbonate.
- the amount of the base to be used is generally 1 mol-3 mol per 1 mol of compound (7).
- Examples of the solvent used in the above reaction include chlorine solvents such as chloroform and methylene chloride; amide solvents such as N-methylpyrrolidone, N, N-dimethylformamide, N, N-dimethylacetamide, and hexamethylphosphoric triamide; Ether solvents such as 1,4-dioxane, cyclopentylmethyl ether, tetrahydrofuran, tetrahydropyran, 1,3-dioxolane; sulfur-containing solvents such as dimethyl sulfoxide and sulfolane; aromatic hydrocarbon solvents such as benzene, toluene and xylene; aliphatic hydrocarbon solvents such as n-pentane, n-hexane and n-octane; alicyclic hydrocarbon solvents such as cyclopentane and cyclohexane; and mixed solvents composed of two or more of these solvents; It is done.
- the compound (6) is a known substance and can be produced by a known method. For example, it can be produced by the method shown in the following reaction formula (see International Publication No. 2009/042544 and The Journal of Organic Chemistry, 2011, 76, 8082-8087, etc.). What is marketed as compound (6) may be purified if desired.
- a 1 and Q 1 represent the same meaning as described above, A 1a represents a divalent aromatic group that can be converted to A 1 by formylation or acylation, and R ′ represents methyl. And a hydroxyl-protecting group such as an alkyl group having 1 to 6 carbon atoms such as an ethyl group and an alkoxyalkyl group having 2 to 6 carbon atoms such as a methoxymethyl group.
- the hydroxyl group of the dihydroxy compound represented by the formula (6a) (1,4-dihydroxybenzene, 1,4-dihydroxynaphthalene, etc.) is alkylated to represent the formula (6b).
- the ortho-position of the OR ′ group is formylated or acylated by a known method to obtain a compound represented by the formula (6c).
- the target compound (6) can be manufactured by deprotecting (dealkylating) this thing.
- a commercially available product may be used as it is or after purification as desired.
- Many of the compounds (7) are known compounds such as an ether bond (—O—), an ester bond (—C ( ⁇ O) —O—, —O—C ( ⁇ O) —), a carbonate bond (—
- An ether bond (—O—) an ester bond (—C ( ⁇ O) —O—, —O—C ( ⁇ O) —), a carbonate bond (—
- a plurality of compounds having a desired structure by arbitrarily combining the formation reaction of O—C ( ⁇ O) —O—) and amide bond (—C ( ⁇ O) —NH—, —NH—C ( ⁇ O) —) Can be produced by appropriately binding and modifying the known compounds.
- Y 12 represents —O—C ( ⁇ O) —Y 12 represents Y .R representing the 3 become group, an alkyl group such as a methyl group, an ethyl group, represents a); phenyl, p- aryl group which may have a substituent such as a methyl phenyl group.
- the sulfonyl chloride represented by the formula (10) is reacted with the compound (9 ′) in the presence of a base such as triethylamine or 4- (dimethylamino) pyridine.
- a base such as triethylamine or 4- (dimethylamino) pyridine.
- the reaction is performed by adding the compound (8) and a base such as triethylamine, 4- (dimethylamino) pyridine to the reaction mixture.
- the amount of sulfonyl chloride to be used is generally 0.5-0.7 equivalent per 1 equivalent of compound (9 ′).
- the amount of compound (8) to be used is generally 0.5 equivalent to 0.6 equivalent per 1 equivalent of compound (9 ′).
- the amount of the base to be used is generally 0.5 equivalents to 0.7 equivalents relative to 1 equivalent of compound (9 ′).
- the reaction temperature is 20 ° C. to 30 ° C., and the reaction time is several minutes to several hours depending on the reaction scale and the like
- a solvent used for the said reaction what was illustrated as a solvent which can be used when manufacturing the said compound (4 ') is mentioned. Of these, ether solvents are preferred.
- the amount of the solvent used is not particularly limited and can be set in consideration of the type of compound used, reaction scale, and the like.
- the specific amount of the solvent used is usually 1 g to 50 g with respect to 1 g of the compound (9 ′).
- any reaction after the reaction is completed, normal post-treatment operations in organic synthetic chemistry can be performed.
- the desired product can be isolated by performing known separation and purification treatments such as column chromatography, recrystallization, and distillation.
- the structure of the target compound can be identified by measurement of NMR spectrum, IR spectrum, mass spectrum, etc., elemental analysis or the like.
- the liquid crystalline composition preferably contains a surfactant.
- any type of surfactant capable of adjusting the surface tension of the liquid crystalline composition to a desired range can be used.
- the surfactant those containing a fluorine atom in the molecule of the surfactant are preferable. By using a surfactant containing a fluorine atom in the molecule, the surface tension of the liquid crystal composition can be easily adjusted to a desired range.
- the surfactant containing a fluorine atom in the molecule preferably contains a fluoroalkyl group.
- the fluoroalkyl group is preferably a perfluoroalkyl group from the viewpoints of improving the surface state of the optically anisotropic layer, improving the orientation, suppressing retardation unevenness, and suppressing thickness unevenness, and in particular —C 6.
- F 13 group is preferred.
- the ratio of fluorine atoms in the molecule of the surfactant is preferably 5% by weight or more, more preferably 10% by weight or more, particularly preferably 15% by weight or more, preferably 50% by weight or less, more preferably It is 40% by weight or less, particularly preferably 30% by weight or less.
- the ratio of fluorine atoms in the molecule of the surfactant equal to or higher than the upper limit of the above range, the surface state and orientation of the optically anisotropic layer can be improved, and further, Retardation unevenness and thickness unevenness can be suppressed.
- the proportion of fluorine atoms in the molecule of the surfactant can be measured by the following method.
- the surfactant as a sample is weighed and burned in the combustion tube of the analyzer.
- the gas generated by the combustion is absorbed in an appropriate solution to obtain an absorption liquid. Thereafter, by analyzing a part of the absorbing solution by ion chromatography, the proportion of fluorine atoms in the molecule of the surfactant can be measured.
- those having an oligomer structure having a repeating unit contained in two or more units in the molecule of the surfactant may be used, or those having a monomer structure not containing a repeating unit may be used.
- a non-polymerizable one may be used, or a polymerizable one may be used. Since a surfactant having a polymerizable property can be polymerized when a reverse wavelength polymerizable liquid crystal compound is polymerized, it is usually a part of polymer molecules in an optically anisotropic layer produced from a liquid crystalline composition. include.
- surfactant containing a fluorine atom examples include, for example, Surflon series (S242, S243, S386, S611, S651, etc.) manufactured by AGC Seimi Chemical Co., and MegaFuck series (F251, F554, F556, F562, RS-75, RS-76-E, etc.), Neos Corporation's footgent series (FTX601AD, FTX602A, FTX601ADH2, FTX650A, etc.) and the like.
- surfactant may be used individually by 1 type and may be used combining two or more types by arbitrary ratios.
- the amount of the surfactant in the liquid crystal composition is preferably 0.05 parts by weight or more, more preferably 0.1 parts by weight or more, and particularly preferably 0.3 parts by weight with respect to 100 parts by weight of the reverse wavelength polymerizable liquid crystal compound. It is at least 5.0 parts by weight, more preferably at most 1.0 part by weight, particularly preferably at most 0.5 part by weight.
- the liquid crystalline composition may further contain an optional component in combination with the reverse wavelength polymerizable liquid crystal compound and the surfactant described above.
- the liquid crystal composition may contain a solvent.
- a solvent those capable of dissolving the reverse wavelength polymerizable liquid crystal compound are preferable.
- an organic solvent is usually used.
- organic solvents include ketone solvents such as cyclopentanone, cyclohexanone, methyl ethyl ketone, acetone, and methyl isobutyl ketone; acetic ester solvents such as butyl acetate and amyl acetate; halogenated hydrocarbon solvents such as chloroform, dichloromethane, and dichloroethane; 1 , 4-dioxane, cyclopentyl methyl ether, tetrahydrofuran, tetrahydropyran, 1,3-dioxolane, ether solvents such as 1,2-dimethoxyethane; and aromatic hydrocarbons such as toluene, xylene and mesitylene.
- the solvent may be used alone or as a mixed solvent in which two or more kinds are combined in an arbitrary ratio.
- a ketone solvent such as cyclopentanone and an ether solvent such as 1,3-dioxolane are preferably used in combination.
- the weight ratio of the ketone solvent to the ether solvent is preferably 10/90 or more, more preferably 30/70 or more, particularly preferably 40/60 or more, preferably Is 90/10 or less, more preferably 70/30 or less, and particularly preferably 50/50 or less.
- the boiling point of the solvent is preferably 60 ° C. to 250 ° C., more preferably 60 ° C. to 150 ° C., from the viewpoint of excellent handleability.
- the amount of the solvent is preferably 300 parts by weight or more, more preferably 350 parts by weight or more, particularly preferably 400 parts by weight or more, preferably 700 parts by weight or less, with respect to 100 parts by weight of the reverse wavelength polymerizable liquid crystal compound. More preferred is 600 parts by weight or less, and particularly preferred is 500 parts by weight or less.
- the liquid crystalline composition can contain a polymerization initiator.
- a polymerization initiator can be selected according to the kind of reverse wavelength polymerizable liquid crystal compound. For example, if the reverse wavelength polymerizable liquid crystal compound is radically polymerizable, a radical polymerization initiator can be used. Further, if the reverse wavelength polymerizable liquid crystal compound is anionic polymerizable, an anionic polymerization initiator can be used. Further, if the reverse wavelength polymerizable liquid crystal compound is cationically polymerizable, a cationic polymerization initiator can be used.
- a thermal radical generator that is a compound that generates an active species capable of initiating polymerization of a reverse wavelength polymerizable liquid crystal compound by heating; visible light, ultraviolet light (i-line, etc.), far ultraviolet light, electron beam, Any of photoradical generators that are compounds that generate active species capable of initiating polymerization of a reverse wavelength polymerizable liquid crystal compound by exposure to exposure light such as X-rays can be used.
- a photo radical generator is preferable.
- Examples of the photo radical generator include acetophenone compounds, biimidazole compounds, triazine compounds, O-acyloxime compounds, onium salt compounds, benzoin compounds, benzophenone compounds, ⁇ -diketone compounds, polynuclear quinones. Compounds, xanthone compounds, diazo compounds, and imide sulfonate compounds. These compounds can generate an active radical, an active acid, or both an active radical and an active acid upon exposure.
- acetophenone compounds include 2-hydroxy-2-methyl-1-phenylpropan-1-one, 2-methyl-1- [4- (methylthio) phenyl] -2-morpholinopropan-1-one 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butan-1-one, 1-hydroxycyclohexyl phenyl ketone, 2,2-dimethoxy-1,2-diphenylethane-1-one, Mention may be made of 1,2-octanedione, 2-benzyl-2-dimethylamino-4′-morpholinobylophenone.
- biimidazole compound examples include 2,2′-bis (2-chlorophenyl) -4,4 ′, 5,5′-tetrakis (4-ethoxycarbonylphenyl) -1,2′-biimidazole, 2 , 2'-bis (2-bromophenyl) -4,4 ', 5,5'-tetrakis (4-ethoxycarbonylphenyl) -1,2'-biimidazole, 2,2'-bis (2-chlorophenyl) -4,4 ', 5,5'-tetraphenyl-1,2'-biimidazole, 2,2'-bis (2,4-dichlorophenyl) -4,4', 5,5'-tetraphenyl-1 , 2′-biimidazole, 2,2′-bis (2,4,6-trichlorophenyl) -4,4 ′, 5,5′-tetraphenyl-1,2′-biimi
- the sensitivity can be further improved by using a hydrogen donor in combination with the biimidazole compound.
- the “hydrogen donor” means a compound that can donate a hydrogen atom to a radical generated from a biimidazole compound by exposure.
- the hydrogen donor mercaptan compounds and amine compounds exemplified below are preferable.
- Examples of mercaptan compounds include 2-mercaptobenzothiazole, 2-mercaptobenzoxazole, 2-mercaptobenzimidazole, 2,5-dimercapto-1,3,4-thiadiazole, 2-mercapto-2,5-dimethylamino. Mention may be made of pyridine. Examples of amine compounds include 4,4′-bis (dimethylamino) benzophenone, 4,4′-bis (diethylamino) benzophenone, 4-diethylaminoacetophenone, 4-dimethylaminopropiophenone, ethyl-4-dimethylamino. Mention may be made of benzoate, 4-dimethylaminobenzoic acid, 4-dimethylaminobenzonitrile.
- triazine compound examples include 2,4,6-tris (trichloromethyl) -s-triazine, 2-methyl-4,6-bis (trichloromethyl) -s-triazine, 2- [2- (5 -Methylfuran-2-yl) ethenyl] -4,6-bis (trichloromethyl) -s-triazine, 2- [2- (furan-2-yl) ethenyl] -4,6-bis (trichloromethyl)- s-triazine, 2- [2- (4-diethylamino-2-methylphenyl) ethenyl] -4,6-bis (trichloromethyl) -s-triazine, 2- [2- (3,4-dimethoxyphenyl) ethenyl -4,6-bis (trichloromethyl) -s-triazine, 2- (4-methoxyphenyl) -4,6-bis (trichloromethyl)
- O-acyloxime compounds include 1- [4- (phenylthio) phenyl] -heptane-1,2-dione 2- (O-benzoyloxime), 1- [4- (phenylthio) phenyl]- Octane-1,2-dione 2- (O-benzoyloxime), 1- [4- (benzoyl) phenyl] -octane-1,2-dione 2- (O-benzoyloxime), 1- [9-ethyl- 6- (2-Methylbenzoyl) -9H-carbazol-3-yl] -ethanone 1- (O-acetyloxime), 1- [9-ethyl-6- (3-methylbenzoyl) -9H-carbazole-3- Yl] -ethanone 1- (O-acetyloxime), 1- (9-ethyl-6-benzoyl-9H-carbazol-3-yl) -ethanone 1- (O-acetyl)
- anionic polymerization initiator examples include alkyl lithium compounds; monolithium salts or monosodium salts such as biphenyl, naphthalene, and pyrene; polyfunctional initiators such as dilithium salt and trilithium salt.
- Examples of the cationic polymerization initiator include proton acids such as sulfuric acid, phosphoric acid, perchloric acid, and trifluoromethanesulfonic acid; Lewis acids such as boron trifluoride, aluminum chloride, titanium tetrachloride, and tin tetrachloride; aromatic A combined system of an onium salt or an aromatic onium salt and a reducing agent.
- polymerization initiator one type may be used alone, or two or more types may be used in combination at any ratio.
- the amount of the polymerization initiator is preferably 0.1 parts by weight or more, more preferably 0.5 parts by weight or more, preferably 30 parts by weight or less, more preferably 100 parts by weight of the reverse wavelength polymerizable liquid crystal compound. Is 10 parts by weight or less. When the amount of the polymerization initiator falls within the above range, the polymerization of the reverse wavelength polymerizable liquid crystal compound can be efficiently advanced.
- liquid crystal composition examples include polymerizable compounds other than reverse wavelength polymerizable liquid crystal compounds; metals; metal complexes; metal oxides such as titanium oxide; colorants such as dyes and pigments; Luminescent materials such as fluorescent materials and phosphorescent materials; leveling agents; thixotropic agents; gelling agents; polysaccharides; ultraviolet absorbers; infrared absorbers; antioxidants; One of these may be used alone, or two or more of these may be used in combination at any ratio.
- the amount of the additive can be arbitrarily set within a range that does not significantly impair the effects of the present invention. Specifically, the amount of the additive may be 0.1 to 20 parts by weight with respect to 100 parts by weight of the reverse wavelength polymerizable liquid crystal compound.
- the liquid crystal composition can be produced by mixing the components described above.
- Examples of the method for applying the liquid crystalline composition include curtain coating method, extrusion coating method, roll coating method, spin coating method, dip coating method, bar coating method, spray coating method, slide coating method, print coating method, and gravure. Examples thereof include a coating method, a die coating method, a cap coating method, and a dipping method.
- the thickness of the layer of the liquid crystal composition to be applied can be appropriately set according to the thickness required for the optically anisotropic layer.
- coating a liquid crystalline composition to the application surface of a base material is favorable. Specifically, since the coating property of the liquid crystalline composition on the coated surface of the substrate is good, the coated liquid crystalline composition can be stably fixed on the coated surface of the substrate. Moreover, since the repellency of the application surface of the base material with respect to the liquid crystalline composition is small, the occurrence of repellant portions in the layer of the liquid crystalline composition can be suppressed. The stickiness and repellency can be evaluated by the following methods.
- FIG. 1 is a cross-sectional view schematically showing an example of a layer 200 of a liquid crystalline composition immediately after the liquid crystalline composition is applied to the application surface 110 of the substrate 100.
- FIG. 2 is a cross-sectional view schematically showing an example of the layer 200 of the liquid crystalline composition after a lapse of time since the liquid crystalline composition is applied to the application surface 110 of the substrate 100.
- FIG. 3 is a cross-sectional view schematically showing an example of the layer 200 of the liquid crystalline composition after a lapse of time since the liquid crystalline composition is applied to the application surface 110 of the substrate 100.
- an application position 120 As shown in FIG. 1, when a liquid crystal composition is applied to the application surface 110 of the substrate 100, a layer 200 of the liquid crystal composition is formed on the application surface 110. In this case, the position of the outer edge 210 of the portion where the liquid crystal composition is applied immediately after the liquid crystal composition is applied is referred to as “application position 120”.
- the liquid crystalline composition When the application property of the liquid crystalline composition to the coated surface 110 is good, the liquid crystalline composition is easily adapted to the coated surface 110. Therefore, the liquid crystalline composition tends to remain in the region immediately after being applied as shown in FIG. 1 or spread more than the region immediately after being applied as shown in FIG. Therefore, the outer edge 210 of the layer 200 of the liquid crystalline composition usually stays at the application position 120 or moves outward from the application position 120 over time.
- the liquid crystalline composition on the coated surface 110 is low, the liquid crystalline composition is not easily adapted to the coated surface 110. Therefore, the liquid crystalline composition tends to be repelled and gathered on the coating surface 110 as shown in FIG. Therefore, the outer edge 210 of the layer 200 of liquid crystalline composition usually moves inward from the application position 120 over time.
- the liquid crystalline composition is repelled by the coated surface 110 in the entire area where the liquid crystalline composition is applied, and the liquid crystalline composition layer 200 is divided into a plurality of layers. May be.
- the optically anisotropic layer of the produced multilayer film is observed, and the paintability can be evaluated based on the relationship between the end of the optically anisotropic layer and the application position of the liquid crystalline composition.
- the optically anisotropic layer can be observed by the following method.
- the multilayer film is cut into a predetermined size (for example, 16 cm square) to obtain a sample piece.
- Two linear polarizers polarizer and analyzer
- the sample piece is placed so that the slow axis of the sample piece forms an angle of 45 ° with the polarization absorption axis of the linear polarizer. Then, the optically anisotropic layer can be observed by visually observing the light that has come out of the light table and transmitted through the linear polarizer, the test piece, and the linear polarizer.
- FIG. 4 is a perspective view schematically showing an example of a layer 200 of a liquid crystalline composition in which a repelling part 220 is generated due to the foreign matter 130 attached to the application surface 110 of the substrate 100.
- a repelling part 220 in which the liquid crystalline composition cannot be fixed on the application surface 110 is usually formed around the foreign material 130 in the region where the liquid crystalline composition is applied.
- the size D of the repelling part 220 tends to increase as the coated surface 110 has a stronger property of repelling the liquid crystalline composition.
- the size of the repellant part is measured.
- the repellency can be evaluated based on the above.
- the optically anisotropic layer can be observed by the same method as described in the description of the method for evaluating the stickiness.
- a step of aligning the reverse wavelength polymerizable liquid crystal compound contained in the layer is performed.
- an alignment treatment such as heating to the liquid crystalline composition layer
- the reverse wavelength polymerizable liquid crystal compound can be aligned in a direction corresponding to the alignment regulating force of the substrate.
- the conditions for the alignment treatment can be appropriately set according to the properties of the liquid crystal composition used. As a specific example of the conditions for the alignment treatment, the treatment may be performed under a temperature condition of 50 ° C. to 160 ° C. for 30 seconds to 5 minutes.
- the alignment of the reverse wavelength polymerizable liquid crystal compound may be immediately achieved by application of the liquid crystal composition.
- the alignment treatment for aligning the reverse wavelength polymerizable liquid crystal compound may not necessarily be performed on the layer of the liquid crystalline composition.
- the reverse wavelength polymerizable liquid crystal compound After aligning the reverse wavelength polymerizable liquid crystal compound, the reverse wavelength polymerizable liquid crystal compound is polymerized to obtain an optically anisotropic layer (polymerization step).
- a polymerization method of the reverse wavelength polymerizable liquid crystal compound a method suitable for the properties of the components contained in the liquid crystal composition can be selected.
- the polymerization method include a method of irradiating active energy rays and a thermal polymerization method. Among them, the method of irradiating with active energy rays is preferable because heating is unnecessary and the polymerization reaction can proceed at room temperature.
- the irradiated active energy rays can include light such as visible light, ultraviolet light, and infrared light, and arbitrary energy rays such as electron beams.
- the temperature during ultraviolet irradiation is preferably not higher than the glass transition temperature of the substrate, preferably not higher than 150 ° C., more preferably not higher than 100 ° C., particularly preferably not higher than 80 ° C.
- the lower limit of the temperature during ultraviolet irradiation can be 15 ° C. or higher.
- the irradiation intensity of ultraviolet rays is preferably 0.1 mW / cm 2 or more, more preferably 0.5 mW / cm 2 or more, preferably 1000 mW / cm 2 or less, more preferably 600 mW / cm 2 or less.
- the method for producing a multilayer film of the present invention may further include an optional step in addition to the above steps.
- the said manufacturing method may include the process of drying the layer of a liquid crystalline composition as needed before a superposition
- drying can be achieved by a drying method such as natural drying, heat drying, reduced pressure drying, and reduced pressure heat drying. By such drying, the solvent can be removed from the liquid crystal composition layer.
- a multilayer film including a substrate and an optically anisotropic layer formed on the coated surface of the substrate is obtained.
- coating a liquid crystalline composition to the application surface of a base material is favorable. Therefore, the optically anisotropic layer obtained by curing the liquid crystalline composition layer by polymerization of the reverse wavelength polymerizable liquid crystal compound is stably formed in the region where the liquid crystalline composition is applied. Therefore, according to the manufacturing method mentioned above, the yield of a multilayer film can be improved and productivity can be improved. Furthermore, since the repellency of the liquid crystalline composition due to the coated surface can be suppressed, the thickness of the liquid crystalline composition layer can be made uniform, and as a result, the thickness of the optically anisotropic layer can be made uniform.
- the optically anisotropic layer includes a polymer obtained by polymerizing a reverse wavelength polymerizable liquid crystal compound. This polymer is obtained by polymerizing a reverse wavelength polymerizable liquid crystal compound while maintaining the molecular orientation in the liquid crystal phase, and thus has a homogeneous alignment regularity.
- the orientation regularity of the polymer is usually along the direction corresponding to the orientation regulating force of the substrate.
- a base material consists of resin containing an alicyclic structure containing polymer
- the said base material has the alignment control force which orientates a reverse wavelength polymeric liquid crystal compound in the direction parallel to the slow axis of a base material. Therefore, in a multilayer film manufactured using a substrate comprising a resin containing an alicyclic structure-containing polymer, a polymer obtained by polymerizing a reverse wavelength polymerizable liquid crystal compound is in the direction of the slow axis of the substrate. It has homogeneous alignment regularity along substantially the same direction.
- “having homogeneous alignment regularity” means that the major axis direction of the mesogen of the polymer molecule is aligned in one direction parallel to the surface of the optically anisotropic layer. Further, the homogeneous alignment regularity “along” in a predetermined direction means that the alignment direction is a predetermined direction. Furthermore, the orientation along the direction of the “slow axis” of the substrate and “substantially” in the same direction means that the angle formed by the direction of the slow axis of the substrate and the alignment direction of the mesogen is usually within 5 °, preferably It means within 3 °, more preferably within 1 °.
- the major axis direction of the mesogen of the polymer molecule obtained by polymerizing the reverse wavelength polymerizable liquid crystal compound is the long axis direction of the mesogen of the reverse wavelength polymerizable liquid crystal compound corresponding to the polymer. Further, when a plurality of types of mesogens having different orientation directions are present in the optically anisotropic layer as in the case where the compound (I) is used as the reverse wavelength polymerizable liquid crystal compound, the longest type of mesogens among them.
- the alignment direction is the alignment direction.
- Such an optically anisotropic layer usually has a slow axis parallel to the alignment direction of the polymer corresponding to the alignment regularity of the polymer obtained by polymerizing the reverse wavelength polymerizable liquid crystal compound.
- a phase difference meter represented by AxoScan (manufactured by Axometrics) is used as to whether or not the polymer obtained by polymerizing the reverse wavelength polymerizable liquid crystal compound has homogeneous alignment regularity and the alignment direction thereof. This can be confirmed by measuring the slow axis direction and the retardation distribution for each incident angle in the slow axis direction.
- the optically anisotropic layer Since it contains a polymer obtained by polymerizing a reverse wavelength polymerizable liquid crystal compound, the optically anisotropic layer has birefringence with reverse wavelength dispersion. Accordingly, the optically anisotropic layer can have a reverse wavelength dispersion retardation.
- the retardation of the inverse wavelength dispersion is a retardation Re (450) at a wavelength of 450 nm, a retardation Re (550) at a wavelength of 550 nm, and a retardation Re (650) at a wavelength of 650 nm.
- a retardation that satisfies the following formula (D4) is preferably satisfied.
- the optically anisotropic layer can exhibit a uniform function in a wide band in optical applications such as a quarter-wave plate or a half-wave plate.
- the specific retardation range of the optically anisotropic layer can be arbitrarily set according to the use of the optically anisotropic layer.
- the retardation Re (550) of the optically anisotropic layer is preferably 80 nm or more, more preferably 100 nm or more, and particularly preferably 120 nm.
- the thickness is preferably 180 nm or less, more preferably 160 nm or less, and particularly preferably 150 nm or less.
- the retardation Re (550) of the optically anisotropic layer is preferably 245 nm or more, more preferably 265 nm or more, particularly preferably. Is 270 nm or more, preferably 305 nm or less, more preferably 285 nm or less, and particularly preferably 280 nm or less.
- the thickness of the optically anisotropic layer can be appropriately set so that properties such as retardation can be in a desired range.
- the thickness of the optically anisotropic layer is preferably 0.5 ⁇ m or more, more preferably 1.0 ⁇ m or more, preferably 10 ⁇ m or less, more preferably 7 ⁇ m or less.
- the shape, length, and width of the optically anisotropic layer are not particularly limited, but may be a single sheet or a long shape, similar to the base material.
- the multilayer film produced by the production method described above may be used for any application as it is, or the optically anisotropic layer may be used only for any application by peeling the substrate from the optically anisotropic layer,
- the optically anisotropic layer may be bonded to an arbitrary member and used for any application.
- optical applications are preferable, and wavelength plates such as quarter-wave plates and half-wave plates are particularly suitable.
- the wave plate may include only an optically anisotropic layer.
- the wave plate including only the optically anisotropic layer is formed by, for example, peeling the optically anisotropic layer formed on the base material from the base material and cutting it into a desired shape such as a rectangle. Can be manufactured.
- the wave plate may further include a substrate used for manufacturing the optically anisotropic layer.
- the wave plate including the optically anisotropic layer and the base material for example, does not peel the optically anisotropic layer formed on the base material from the base material, and includes the base material and the optically anisotropic layer.
- the multilayer film may be used as it is as a wave plate.
- the wave plate may include an arbitrary layer other than the optically anisotropic layer and the base material.
- optional layers include adhesive layers for adhering to other members, mat layers for improving film slipperiness, hard coat layers such as impact-resistant polymethacrylate resin layers, antireflection layers, antifouling layers, etc. Is mentioned.
- Circular polarizing plate A circularly polarizing plate can be produced using the optical anisotropy of the multilayer film produced by the production method described above.
- This circularly polarizing plate includes a linear polarizer and an optically anisotropic layer.
- linear polarizer a known linear polarizer used in an apparatus such as a liquid crystal display device can be used.
- linear polarizers are those obtained by adsorbing iodine or dichroic dye on a polyvinyl alcohol film and then uniaxially stretching in a boric acid bath; adsorbing iodine or dichroic dye on a polyvinyl alcohol film And obtained by modifying a part of the polyvinyl alcohol unit in the molecular chain into a polyvinylene unit.
- linear polarizer examples include a polarizer having a function of separating polarized light into reflected light and transmitted light, such as a grid polarizer, a multilayer polarizer, and a cholesteric liquid crystal polarizer. Of these, a polarizer containing polyvinyl alcohol is preferred.
- the degree of polarization of the linear polarizer is preferably 98% or more, more preferably 99% or more.
- the average thickness of the linear polarizer is preferably 5 ⁇ m to 80 ⁇ m.
- the optically anisotropic layer preferably has an appropriate retardation so that it can function as a quarter-wave plate.
- the angle formed between the slow axis of the optically anisotropic layer and the transmission axis of the linear polarizer is preferably 45 ° or close to the thickness direction, specifically 40 ° to 50 °. It is preferable that
- a circularly polarizing plate is an application as an antireflection film of a display device such as an organic electroluminescence display device.
- a circularly polarizing plate By providing a circularly polarizing plate on the surface of the display device so that the surface on the linear polarizer side faces the viewing side, light incident from the outside of the device is prevented from being reflected inside the device and emitted to the outside of the device. As a result, glare of the display surface of the display device can be suppressed. Specifically, only a part of the linearly polarized light passes through the linear polarizer and then passes through the optically anisotropic layer to become circularly polarized light.
- Circularly polarized light is reflected by a component that reflects light in the apparatus (reflecting electrode, etc.) and passes through the optically anisotropic layer again, thereby having a polarization axis in a direction perpendicular to the polarization axis of the incident linearly polarized light. It becomes linearly polarized light and does not pass through the linear polarizer. Thereby, the function of antireflection is achieved.
- the circularly polarizing plate may further include an arbitrary layer in addition to the linear polarizer and the optically anisotropic layer.
- a multilayer film provided with a stretched substrate and an optically anisotropic layer was cut into a predetermined size (for example, 16 cm square) to obtain a sample piece.
- the optically anisotropic layer of the multilayer film was bonded to a glass plate, and the stretched substrate was peeled from the optically anisotropic layer to obtain a sample provided with the glass plate and the optically anisotropic layer.
- the in-plane retardation Re of the optically anisotropic layer at wavelengths of 450 nm, 550 nm, and 650 nm was measured using a polarimeter (“AxoScan” manufactured by Axometrics).
- Example 1 Production of multilayer film using liquid crystalline composition containing reverse wavelength polymerizable liquid crystal compound] [1-1.
- a pellet of thermoplastic norbornene resin (“ZEONOR1420R” manufactured by Nippon Zeon Co., Ltd.) was dried at 90 ° C. for 5 hours. The dried pellets are supplied to an extruder, melted in the extruder, passed through a polymer pipe and a polymer filter, extruded from a T-die onto a casting drum, cooled, and cooled to have a length of 60 ⁇ m and a width of 1490 mm.
- a substrate before stretching was produced. The manufactured base material before stretching was wound up to obtain a roll.
- the following steps were performed while the stretched substrate was pulled out from the roll and conveyed in the longitudinal direction.
- the said coating liquid (L1) was apply
- the coating liquid (L1) was selectively applied only to a desired portion of the surface of the stretched substrate (specifically, a portion on the inside of about 10 mm or more from both ends of the stretched substrate).
- the coating liquid (L1) layer was subjected to an alignment treatment at 110 ° C. for 4 minutes to align the reverse wavelength polymerizable liquid crystal compound contained in the coating liquid (L1) layer.
- a polymer obtained by polymerizing the reverse wavelength polymerizable liquid crystal compound is homogeneously oriented using a polarimeter (“AxoScan” manufactured by Axometrics) as follows. Confirmed by the method. The slow axis direction of the optically anisotropic layer was measured. The angle of the slow axis of the optically anisotropic layer was 45 ° with respect to the winding direction as in the stretched substrate. Next, the in-plane retardation Re for each incident angle in the slow axis direction was measured every 10 ° in the range of the incident angle from ⁇ 70 ° to 70 °. The measurement wavelength was 550 nm.
- the in-plane retardation Re for each incident angle was symmetric around 0 °, and it was confirmed that the optically anisotropic layer was homogeneously oriented.
- the in-plane retardation Re (450) 111 nm at a measurement wavelength of 450 nm and the in-plane retardation Re (at a measurement wavelength of 550 nm).
- 550) 140 nm
- in-plane retardation Re (650) 145 nm at a measurement wavelength of 650 nm.
- Examples 2 to 9 and Comparative Examples 1 and 2 Examples and Comparative Examples Using Reverse Wavelength Polymerizable Liquid Crystal Compounds
- Table 1 the types of (i) reverse wavelength polymerizable liquid crystal compound and (ii) surfactant used for the preparation of the liquid crystal composition were changed. Except for the above, a multilayer film comprising a stretched substrate and an optically anisotropic layer was produced in the same manner as in Example 1.
- the optically anisotropic layer contained in the produced multilayer film contained a polymer obtained by polymerizing a reverse wavelength polymerizable liquid crystal compound with homogeneous alignment regularity. Further, the angle of the slow axis of the optically anisotropic layer was 45 ° with respect to the winding direction. Furthermore, when the in-plane retardation Re of the optically anisotropic layer is measured, the reverse wavelength polymerizable liquid crystal compound used has a characteristic that the birefringence ⁇ n increases as the measurement wavelength increases (reverse wavelength dispersion). It was confirmed that
- Example 2 Manufacture of multilayer film
- the stretched base material produced in Example 1 was prepared.
- the drawn substrate was pulled out from the roll and conveyed in the longitudinal direction, and the following steps were performed.
- the said coating liquid (L2) was apply
- the coating liquid (L2) was selectively applied only to a desired portion of the surface of the stretched substrate (specifically, a portion on the inside of about 10 mm or more from both ends of the stretched substrate). Thereafter, the coating liquid (L2) layer was subjected to an alignment treatment at 100 ° C.
- the multilayer film provided with an extending
- the dry film thickness of the optically anisotropic layer was 1.2 ⁇ m.
- the optically anisotropic layer of the multilayer film thus obtained, it was confirmed by the same method as in Example 1 that the polymer obtained by polymerizing the forward wavelength polymerizable liquid crystal compound was homogeneously oriented. Further, the angle of the slow axis of the optically anisotropic layer was 45 ° with respect to the winding direction as in the stretched substrate.
- the optically anisotropic layer included in the produced multilayer film contained a polymer obtained by polymerizing a forward wavelength polymerizable liquid crystal compound with homogeneous alignment regularity. Further, the angle of the slow axis of the optically anisotropic layer was 45 ° with respect to the winding direction. Furthermore, when the in-plane retardation Re of the optically anisotropic layer is measured, the birefringence ⁇ n of the used forward wavelength polymerizable liquid crystal compound has a characteristic (forward wavelength dispersion) that decreases as the measurement wavelength increases. It was confirmed that
- Liquid crystal compound “A” reverse wavelength polymerizable liquid crystal compound represented by formula (A).
- Liquid crystal compound “B” reverse wavelength polymerizable liquid crystal compound represented by formula (B).
- Liquid crystal compound “C” a reverse wavelength polymerizable liquid crystal compound represented by the formula (C).
- Liquid crystal compound “D” reverse wavelength polymerizable liquid crystal compound represented by formula (D).
- Liquid crystal compound “E” reverse wavelength polymerizable liquid crystal compound represented by formula (E).
- Liquid crystal compound “LC242” a polymerizable liquid crystal compound (“LC242” manufactured by BASF) that is capable of expressing forward wavelength dispersion, represented by the formula (F1).
- Liquid crystal compound “K35” a polymerizable liquid crystal compound represented by the formula (F2) that can exhibit forward wavelength dispersion.
- F amount The proportion of fluorine atoms in the surfactant molecule.
- the coating liquid as a liquid crystalline composition having a surface tension of 26 mN / m or more has a low surface free energy of 39.1 mN / m on the coated surface. While being applied, the paintability is high and the repellency is low.
- the coating solutions according to Comparative Examples 1 and 2 having a surface tension of less than 26 mN / m are inferior in applicability because of low adhesion and high repellency. According to general technical common sense, when a certain liquid is applied to a certain surface, it is considered that the coating property becomes better as the surface tension of the liquid is lower than the surface free energy of the surface.
- the surface tension of the liquid crystal composition falls within a predetermined range of 26 mN / m or more, which is specific for improving the coating property when applied to a coating surface having a low surface free energy. It can be said that there is an effect.
- the coating liquids according to Comparative Examples 3 to 12 containing a forward wavelength polymerizable liquid crystal compound instead of a reverse wavelength polymerizable liquid crystal compound have low stickiness and repelling. Since the properties are large, the applicability is inferior. Therefore, the specific action for improving the coating property as described above is a liquid crystalline composition comprising a combination of the surface tension within a predetermined range of 26 mN / m or more and the inclusion of the reverse wavelength polymerizable liquid crystal compound. It was confirmed to be a unique action.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Plasma & Fusion (AREA)
- Materials Engineering (AREA)
- Polarising Elements (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
また、特許文献4のような技術が知られている。
すなわち、本発明は下記の通りである。
前記基材の面に、逆波長分散性の複屈折を発現しうる重合性液晶化合物を含む液晶性組成物を塗布して、前記液晶性組成物の層を形成する工程と、
前記液晶性組成物の層に含まれる前記重合性液晶化合物を重合させて、光学異方性層を得る工程と、を含み、
前記基材の前記面の表面自由エネルギーが、50mN/m以下であり、
前記液晶性組成物の表面張力が、26mN/m以上である、複層フィルムの製造方法。
〔2〕 前記重合性液晶化合物が、前記重合性液晶化合物の分子中に、主鎖メソゲンと、前記主鎖メソゲンに結合した側鎖メソゲンとを含む、〔1〕記載の複層フィルムの製造方法。
〔3〕 前記重合性液晶化合物が、下記式(I)で表される、〔1〕又は〔2〕記載の複層フィルムの製造方法。
Y1~Y8は、それぞれ独立して、化学的な単結合、-O-、-S-、-O-C(=O)-、-C(=O)-O-、-O-C(=O)-O-、-NR1-C(=O)-、-C(=O)-NR1-、-O-C(=O)-NR1-、-NR1-C(=O)-O-、-NR1-C(=O)-NR1-、-O-NR1-、又は、-NR1-O-を表す。ここで、R1は、水素原子又は炭素数1~6のアルキル基を表す。
G1及びG2は、それぞれ独立して、置換基を有していてもよい、炭素数1~20の二価の脂肪族基を表す。また、前記脂肪族基には、1つの脂肪族基当たり1以上の-O-、-S-、-O-C(=O)-、-C(=O)-O-、-O-C(=O)-O-、-NR2-C(=O)-、-C(=O)-NR2-、-NR2-、又は、-C(=O)-が介在していてもよい。ただし、-O-又は-S-がそれぞれ2以上隣接して介在する場合を除く。ここで、R2は、水素原子又は炭素数1~6のアルキル基を表す。
Z1及びZ2は、それぞれ独立して、ハロゲン原子で置換されていてもよい炭素数2~10のアルケニル基を表す。
Axは、芳香族炭化水素環及び芳香族複素環からなる群から選ばれる少なくとも一つの芳香環を有する、炭素数2~30の有機基を表す。
Ayは、水素原子、置換基を有していてもよい炭素数1~20のアルキル基、置換基を有していてもよい炭素数2~20のアルケニル基、置換基を有していてもよい炭素数3~12のシクロアルキル基、置換基を有していてもよい炭素数2~20のアルキニル基、-C(=O)-R3、-SO2-R4、-C(=S)NH-R9、又は、芳香族炭化水素環及び芳香族複素環からなる群から選ばれる少なくとも一つの芳香環を有する、炭素数2~30の有機基を表す。ここで、R3は、置換基を有していてもよい炭素数1~20のアルキル基、置換基を有していてもよい炭素数2~20のアルケニル基、置換基を有していてもよい炭素数3~12のシクロアルキル基、又は、炭素数5~12の芳香族炭化水素環基を表す。R4は、炭素数1~20のアルキル基、炭素数2~20のアルケニル基、フェニル基、又は、4-メチルフェニル基を表す。R9は、置換基を有していてもよい炭素数1~20のアルキル基、置換基を有していてもよい炭素数2~20のアルケニル基、置換基を有していてもよい炭素数3~12のシクロアルキル基、又は、置換基を有していてもよい炭素数5~20の芳香族基を表す。前記Ax及びAyが有する芳香環は、置換基を有していてもよい。また、前記AxとAyは、一緒になって、環を形成していてもよい。
A1は、置換基を有していてもよい三価の芳香族基を表す。
A2及びA3は、それぞれ独立して、置換基を有していてもよい炭素数3~30の二価の脂環式炭化水素基を表す。
A4及びA5は、それぞれ独立して、置換基を有していてもよい、炭素数6~30の二価の芳香族基を表す。
Q1は、水素原子、又は、置換基を有していてもよい炭素数1~6のアルキル基を表す。
m及びnは、それぞれ独立に、0又は1を表す。)
〔4〕 前記基材が、延伸フィルムである、〔1〕~〔3〕のいずれか一項に記載の複層フィルムの製造方法。
〔5〕 前記基材が、脂環式構造含有重合体を含む樹脂からなる、〔1〕~〔4〕のいずれか一項に記載の複層フィルムの製造方法。
〔6〕 前記基材の前記面が、表面処理を施されていない非処理面である、〔1〕~〔5〕のいずれか一項に記載の複層フィルムの製造方法。
〔7〕 基材と、
50mN/m以下の表面自由エネルギーを有する前記基材の面に、逆波長分散性の複屈折を発現しうる重合性液晶化合物を含み且つ26mN/m以上の表面張力を有する液晶性組成物を塗布し、前記重合性液晶化合物を重合させて得られる光学異方性層とを備える、複層フィルム。
本発明の複層フィルムの製造方法は、基材の面に、逆波長分散性の複屈折を発現しうる重合性液晶化合物を含む液晶性組成物を塗布して、この液晶性組成物の層を形成する工程と、液晶性組成物の層に含まれる重合性液晶化合物を重合させて、光学異方性層を得る工程と、を含む。この製造方法により、基材及び光学異方性層を備える複層フィルムを製造できる。以下の説明において、液晶性組成物を塗布される基材の面を、適宜「塗布面」ということがある。また、以下の説明において、逆波長分散性の複屈折を発現しうる重合性液晶化合物のことを、適宜「逆波長重合性液晶化合物」ということがある。
基材としては、所定の表面自由エネルギーを有する面を有する部材を用い、通常はフィルムを用いる。基材は、所定の表面自由エネルギーを有する面を、その片面のみに有していてもよく、その両面に有していてもよい。本発明の複層フィルムの製造方法では、所定の表面自由エネルギーを有する基材の面を、液晶性組成物を塗布される塗布面として用いる。ただし、基材の塗布面は、当該塗布面に液晶性組成物が塗布される際に所定の表面自由エネルギーを有するものであり、液晶性組成物に含まれる逆波長重合性液晶化合物が重合した後における当該塗布面の表面自由エネルギーは任意である。
基材の塗布面で、純水H2Oの接触角θH2O及びジヨードメタンCH2I2の接触角θCH2I2を、実験的に測定する。接触角の測定は、温度25℃湿度60%の条件下で、基材を1時間以上で調湿した後に、同条件下において実施する。
測定された接触角θH2O及びθCH2I2から、下記の連立方程式(X)及び(Y)により、成分γd及び成分γhを計算する。下記の式(X)及び(Y)において、γH2O d=21.8、γH2O h=51.0、γH2O v=72.8、γCH2I2 d=49.5、γCH2I2 h=1.3、γCH2I2 v=50.8である。
そして、計算された成分γd及び成分γhの和を計算することにより、基材の塗布面の表面自由エネルギーγ(=γd+γh)を求める。
前記の延伸は、テンター延伸機などの延伸機を用いて行いうる。
液晶性組成物は、所定の表面張力を有し、且つ、逆波長重合性液晶化合物を含む。この液晶性組成物は、基材の塗布面に塗布される際の環境(例えば、温度25℃湿度60%)においては、通常、流体状の組成物である。
液晶性組成物の表面張力は、通常26mN/m以上、好ましくは28mN/m以上、より好ましくは30mN/m以上であり、好ましくは45mN/m以下、より好ましくは40mN/m以下、特に好ましくは35mN/m以下である。このような範囲の表面張力を有し且つ逆波長重合性液晶化合物を含む液晶性組成物は、上述したように低い所定の表面自由エネルギーを有する基材の塗布面に、良好な塗布性で塗布することが可能である。
液晶性組成物が含む逆波長重合性液晶化合物は、重合性を有する液晶化合物である。この逆波長重合性液晶化合物は、液晶性を有する液晶化合物であるので、当該逆波長重合性液晶化合物を配向させたときに、液晶相を呈しうる。また、逆波長重合性液晶化合物は、重合性を有する化合物であるので、前記のように液晶相を呈した状態で重合し、液晶相における分子の配向を維持したままま重合体となりうる。
Δn(450)<Δn(650) (D1)
Δn(450)<Δn(550)<Δn(650) (D2)
R1の炭素数1~6のアルキル基としては、例えば、メチル基、エチル基、n-プロピル基、イソプロピル基、n-ブチル基、sec-ブチル基、t-ブチル基、n-ペンチル基、n-へキシル基が挙げられる。
R1としては、水素原子又は炭素数1~4のアルキル基が好ましい。
炭素数1~20の二価の脂肪族基としては、例えば、炭素数1~20のアルキレン基、炭素数2~20のアルケニレン基等の鎖状構造を有する二価の脂肪族基;炭素数3~20のシクロアルカンジイル基、炭素数4~20のシクロアルケンジイル基、炭素数10~30の二価の脂環式縮合環基等の二価の脂肪族基;が挙げられる。
前記脂肪族基に介在する基としては、-O-、-O-C(=O)-、-C(=O)-O-、-C(=O)-が好ましい。
該アルケニル基の炭素数としては、2~6が好ましい。Z1及びZ2のアルケニル基の置換基であるハロゲン原子としては、フッ素原子、塩素原子、臭素原子等が挙げられ、塩素原子が好ましい。
さらに、Axの炭素数2~30の有機基の「炭素数」は、置換基の炭素原子を含まない有機基全体の総炭素数を意味する(後述するAyにて同じである。)。
(1)芳香族炭化水素環基
(3)芳香族炭化水素環及び芳香族複素環からなる群から選ばれる少なくとも一つの芳香環を有する、アルキル基
Axの炭素数2~30の有機基の「炭素数」は、置換基の炭素原子を含まない有機基全体の総炭素数を意味する(後述するAyにて同じである。)。
AxとAyが一緒になって形成される環としては、例えば、下記に示す環が挙げられる。なお、下記に示す環は、式(I)中の
また、これらの環は置換基を有していてもよい。かかる置換基としては、Axが有する芳香環の置換基として説明したのと同様のものが挙げられる。
(α)Axが炭素数4~30の、芳香族炭化水素環基又は芳香族複素環基であり、Ayが水素原子、炭素数3~8のシクロアルキル基、(ハロゲン原子、シアノ基、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基、若しくは炭素数3~8のシクロアルキル基)を置換基として有していてもよい炭素数6~12の芳香族炭化水素環基、(ハロゲン原子、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基、シアノ基)を置換基として有していてもよい炭素数3~9の芳香族複素環基、置換基を有していてもよい炭素数1~20のアルキル基、置換基を有していてもよい炭素数1~20のアルケニル基、又は、置換基を有していてもよい炭素数2~20のアルキニル基であり、当該置換基が、ハロゲン原子、シアノ基、炭素数1~20のアルコキシ基、炭素数1~12のアルコキシ基で置換された炭素数1~12のアルコキシ基、フェニル基、シクロヘキシル基、炭素数2~12の環状エーテル基、炭素数6~14のアリールオキシ基、水酸基、ベンゾジオキサニル基、ベンゼンスルホニル基、ベンゾイル基及び-SR10のいずれかである組み合わせ。
(β)AxとAyが一緒になって不飽和複素環又は不飽和炭素環を形成している組み合わせ。ここで、R10は前記と同じ意味を表す。
(γ)Axが下記構造を有する基のいずれかであり、Ayが水素原子、炭素数3~8のシクロアルキル基、(ハロゲン原子、シアノ基、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基、若しくは炭素数3~8のシクロアルキル基)を置換基として有していてもよい炭素数6~12の芳香族炭化水素環基、(ハロゲン原子、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基、シアノ基)を置換基として有していてもよい炭素数3~9の芳香族複素環基、置換基を有していてもよい炭素数1~20のアルキル基、置換基を有していてもよい炭素数1~20のアルケニル基、又は、置換基を有していてもよい炭素数2~20のアルキニル基であり、当該置換基が、ハロゲン原子、シアノ基、炭素数1~20のアルコキシ基、炭素数1~12のアルコキシ基で置換された炭素数1~12のアルコキシ基、フェニル基、シクロヘキシル基、炭素数2~12の環状エーテル基、炭素数6~14のアリールオキシ基、水酸基、ベンゾジオキサニル基、ベンゼンスルホニル基、ベンゾイル基、-SR10のいずれかである組み合わせ。ここで、R10は前記と同じ意味を表す。
AxとAyの特に好ましい組み合わせとしては、下記の組み合わせ(δ)が挙げられる。
(δ)Axが下記構造を有する基のいずれかであり、Ayが水素原子、炭素数3~8のシクロアルキル基、(ハロゲン原子、シアノ基、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基、若しくは炭素数3~8のシクロアルキル基)を置換基として有していてもよい炭素数6~12の芳香族炭化水素環基、(ハロゲン原子、炭素数1~6のアルキル基、炭素数1~6のアルコキシ基、シアノ基)を置換基として有していてもよい炭素数3~9の芳香族複素環基、置換基を有していてもよい炭素数1~20のアルキル基、置換基を有していてもよい炭素数1~20のアルケニル基、又は、置換基を有していてもよい炭素数2~20のアルキニル基であり、当該置換基が、ハロゲン原子、シアノ基、炭素数1~20のアルコキシ基、炭素数1~12のアルコキシ基で置換された炭素数1~12のアルコキシ基、フェニル基、シクロヘキシル基、炭素数2~12の環状エーテル基、炭素数6~14のアリールオキシ基、水酸基、ベンゾジオキサニル基、ベンゼンスルホニル基、ベンゾイル基、及び、-SR10のいずれかである組み合わせ。下記式中、Xは前記と同じ意味を表す。ここで、R10は前記と同じ意味を表す。
また、ジアゾニウム塩(5)は、アニリン等の化合物から常法により製造しうる。
(i)式:D1-hal(halはハロゲン原子を表す。以下にて同じ。)で表される化合物と、式:D2-OMet(Metはアルカリ金属(主にナトリウム)を表す。以下にて同じ。)で表される化合物とを、混合して縮合させる(ウイリアムソン合成)。なお、式中、D1及びD2は任意の有機基を表す(以下にて同じ。)。
(ii)式:D1-halで表される化合物と、式:D2-OHで表される化合物とを、水酸化ナトリウム、水酸化カリウム等の塩基存在下、混合して縮合させる。
(iii)式:D1-J(Jはエポキシ基を表す。)で表される化合物と、式:D2-OHで表される化合物とを、水酸化ナトリウム、水酸化カリウム等の塩基存在下、混合して縮合させる。
(iv)式:D1-OFN(OFNは不飽和結合を有する基を表す。)で表される化合物と、式:D2-OMetで表される化合物とを、水酸化ナトリウム、水酸化カリウム等の塩基存在下、混合して付加反応させる。
(v)式:D1-halで表される化合物と、式:D2-OMetで表される化合物とを、銅あるいは塩化第一銅の存在下、混合して縮合させる(ウルマン縮合)。
(vi)式:D1-COOHで表される化合物と、式:D2-OH又はD2-NH2で表される化合物とを、脱水縮合剤(N,N-ジシクロヘキシルカルボジイミド等)の存在下に脱水縮合させる。
(vii)式:D1-COOHで表される化合物にハロゲン化剤を作用させることにより、式:D1-CO-halで表される化合物を得て、このものと式:D2-OH又はD2-NH2で表される化合物とを、塩基の存在下に反応させる。
(viii)式:D1-COOHで表される化合物に酸無水物を作用させることにより、混合酸無水物を得た後、このものと式:D2-OH又はD2-NH2で表される化合物とを反応させる。
(ix)式:D1-COOHで表される化合物と、式:D2-OH又はD2-NH2で表される化合物とを、酸触媒あるいは塩基触媒の存在下に脱水縮合させる。
溶媒の使用量は、特に限定されず、用いる化合物の種類及び反応規模等を考慮して設定しうる。溶媒の具体的な使用量は、ヒドロキシ化合物(6)1gに対し、通常1g~50gである。
また、化合物(6)として、市販されているものをそのまま、又は所望により精製して用いてもよい。
スルホニルクロライドの使用量は、化合物(9’)1当量に対して、通常0.5当量~0.7当量である。
また、化合物(8)の使用量は、化合物(9’)1当量に対して、通常0.5当量~0.6当量である。
塩基の使用量は、化合物(9’)1当量に対して、通常0.5当量~0.7当量である。
反応温度は、20℃~30℃であり、反応時間は反応規模等にもよるが、数分から数時間である。
溶媒の使用量は、特に限定されず、用いる化合物の種類及び反応規模等を考慮して設定しうる。溶媒の具体的な使用量は、化合物(9’)1gに対し、通常1g~50gである。
目的とする化合物の構造は、NMRスペクトル、IRスペクトル、マススペクトル等の測定、元素分析等により、同定できる。
液晶性組成物の表面張力を所望の範囲に調整するために、液晶性組成物は界面活性剤を含むことが好ましい。
試料としての界面活性剤を秤量し、分析装置の燃焼管内で燃焼させる。燃焼により発生したガスを、適切な溶液に吸収させて、吸収液を得る。その後、吸収液の一部をイオンクロマトグラフィーにより分析することによって、界面活性剤の分子中のフッ素原子の割合を測定しうる。
液晶性組成物は、前述した逆波長重合性液晶化合物及び界面活性剤に組み合わせて、更に任意の成分を含みうる。
本発明の複層フィルムの製造方法では、基材の塗布面に液晶性組成物を塗布して、前記液晶性組成物の層を形成する工程(塗布工程)を行う。この際、液晶性組成物は、基材の塗布面に直接に塗布する。ここで、塗布面への液晶性組成物の「直接」の塗布とは、塗布により形成される液晶性組成物の層と基材の塗布面との間に他の層が無い態様での塗布をいう。
前記の塗り付き性及びハジキ性は、下記の方法によって評価方法しうる。
図1は、基材100の塗布面110に液晶性組成物を塗布した直後の液晶性組成物の層200の一例を模式的に示す断面図である。また、図2は、基材100の塗布面110に液晶性組成物を塗布してから時間が経過した後の液晶性組成物の層200の一例を模式的に示す断面図である。さらに、図3は、基材100の塗布面110に液晶性組成物を塗布してから時間が経過した後の液晶性組成物の層200の一例を模式的に示す断面図である。
複層フィルムを、所定のサイズ(例えば、16cm角)に裁断して、試料片を得る。ライトテーブル上に、2枚の直線偏光子(偏光子及び検光子)を、これらの直線偏光子の偏光吸収軸が平行な状態(パラニコル)で重ねる。これらの直線偏光子の間に、前記の試料片を、試料片の遅相軸が直線偏光子の偏光吸収軸に対して45°の角度をなす向きで置く。そして、ライトテーブルから出て直線偏光子、試験片及び直線偏光子を透過した光を目視することにより、光学異方性層を観察しうる。
図4は、基材100の塗布面110に付着した異物130に起因してハジキ部220を生じた液晶性組成物の層200の一例を模式的に示す斜視図である。
基材100の塗布面110に、ゴミ、ホコリ、汚れ等の異物130が付着している場合、塗布面110に塗布された液晶性組成物は、前記の異物130にはじかれる。そのため、液晶性組成物が塗布された領域において異物130の周囲には、通常、液晶性組成物が塗布面110に定着できないハジキ部220が形成される。このハジキ部220のサイズDは、塗布面110が液晶性組成物をはじく性質が強いほど、大きくなる傾向がある。
通常は、液晶性組成物の層を形成した後で、当該層に含まれる逆波長重合性液晶化合物を配向させる工程(配向工程)を行う。液晶性組成物の層に、加温等の配向処理を施すことにより、基材の配向規制力に応じた方向に逆波長重合性液晶化合物を配向させうる。例えば、脂環式構造含有重合体を含む樹脂からなる基材を用いた場合、配向工程により、基材の遅相軸方向と略同一方向に沿ったホモジニアス配向を達成しうる。配向処理の条件は、使用する液晶性組成物の性質に応じて適切に設定しうる。配向処理の条件の具体例を挙げると、50℃~160℃の温度条件において、30秒間~5分間、処理する条件としうる。
逆波長重合性液晶化合物を配向させた後で、逆波長重合性液晶化合物を重合させて、光学異方性層を得る工程(重合工程)を行う。逆波長重合性液晶化合物の重合方法としては、液晶性組成物に含まれる成分の性質に適合した方法を選択しうる。重合方法としては、例えば、活性エネルギー線を照射する方法、及び、熱重合法が挙げられる。中でも、加熱が不要であり、室温で重合反応を進行させられるので、活性エネルギー線を照射する方法が好ましい。ここで、照射される活性エネルギー線には、可視光線、紫外線、及び赤外線等の光、並びに電子線等の任意のエネルギー線が含まれうる。
本発明の複層フィルムの製造方法は、前記の工程に加えて、更に任意の工程を含みうる。例えば、前記の製造方法は、塗布工程又は配向工程の後、重合工程の前に、必要に応じて、液晶性組成物の層を乾燥させる工程を含んでいてもよい。かかる乾燥は、自然乾燥、加熱乾燥、減圧乾燥、減圧加熱乾燥等の乾燥方法で達成しうる。かかる乾燥により、液晶性組成物の層から、溶媒を除去することができる。
上述した製造方法により、基材、及び、この基材の塗布面に形成された光学異方性層を備える複層フィルムが得られる。上述した製造方法によれば、基材の塗布面に液晶性組成物を塗布する際の塗布性が良好である。そのため、液晶性組成物の層を逆波長重合性液晶化合物の重合により硬化させて得られた前記の光学異方性層は、液晶性組成物を塗布した領域に安定して形成される。したがって、上述した製造方法によれば、複層フィルムの歩留まりを向上させて、生産性を高めることができる。さらに、塗布面による液晶性組成物のハジキを抑制できるので、液晶性組成物の層の厚みを均一にでき、ひいては、光学異方性層の厚みを均一にすることが可能である。
Re(450)<Re(650) (D3)
Re(450)<Re(550)<Re(650) (D4)
上述した製造方法で製造した複層フィルムは、そのまま任意の用途に用いてもよく、光学異方性層から基材を剥離して光学異方性層のみを任意の用途に用いてもよく、光学異方性層を任意の部材に貼り合わせて任意の用途に用いてもよい。用途としては、光学用途が好ましく、特に、1/4波長板及び1/2波長板等の波長板が好適である。
上述した製造方法によって製造された複層フィルムが備える光学異方性を用いて、円偏光板を製造することができる。この円偏光板は、直線偏光子及び光学異方性層を備える。
以下の説明において、量を表す「%」及び「部」は、別に断らない限り重量基準である。また、以下に説明する操作は、別に断らない限り、常温及び常圧の条件において行った。さらに、以下の説明において、順波長分散性の複屈折を発現しうる重合性液晶化合物を、適宜「順波長重合性液晶化合物」と呼ぶことがある。
〔1.界面活性剤のフッ素原子含有量の測定方法〕
試料としての界面活性剤を秤量し、分析装置の燃焼管内で燃焼させた。燃焼により発生したガスを、溶液に吸収させた。その後、吸収液の一部をイオンクロマトグラフィーにより分析して、界面活性剤の分子中のフッ素原子の割合を測定した。各工程における条件は、下記の通りである。
システム:AQF-2100、GA-210(三菱化学製)
電気炉温度:Inlet 900℃、Outlet 1000℃
ガス:Ar/O2 200mL/min
O2 400mL/min
吸収液:溶媒 H2O2 90μg/mL、
内標準物質 P 4μg/mL 又は Br 8μg/mL
吸収液量:20mL
システム:ICS1600(DIONEX製)
移動相:2.7mmol/L Na2CO3 / 0.3mmol/L NaHCO3
流速:1.50mL/min
検出器:電気伝導度検出器
注入量:20μL
基材を、10cm角程度の大きさに切り出して、基材片を得た。この基材片の面において、純水(H2O)の接触角及びジヨードメタン(CH2I2)の接触角を、自動接触角計によって実測した。こうして測定された接触角のデータから、接触角計付属のソフトウェアによって、基材の面の表面自由エネルギーを算出した。測定時の条件は、下記の通りである。
システム:DropMaster700(協和界面科学製)
AutoDispenser AD-31(協和界面科学製)
制御解析ソフトウェア:FAMAS ver3.13
接触角測定法:懸滴法
視野:STD
解析法:Young-Laplace法
テフロン(登録商標)コート針:18G(もしくは22G)
液量:3μL~4μL
測定待ち時間:1000ms
測定回数:n=10測定 平均値
解析ソフトウェア:FAMAS ver3.13
解析理論名:Owens-Wendt
約5ml~10mlの塗布液を、測定装置の付属シャーレの規定液量ラインまで注いだ。その後、温度25℃湿度60%の環境下において、Wilhelmy法(プレート法、垂直板法)によって、塗布液の表面張力を測定した。
システム:DY-200(協和界面科学製)
測定子:白金プレート
測定回数:n=3測定 平均値
延伸基材及び光学異方性層を備える複層フィルムを、所定のサイズ(例えば、16cm角)に裁断して、試料片を得た。
「I」:光学異方性層の端部が、所望の塗り付け位置にあるか、所望の塗り付け位置よりも外側にある。
「II」:光学異方性層の端部が、所望の塗り付け位置より内側に明らかに寄っている。
「III」:塗布液を塗布した部分の全体において塗布液がはじかれ、光学異方性層が複数に分割されている。
「IV」:塗布液のはじきが著しく、基材にまるで塗り付かず光学異方性層が複数に全面分割されている。
「I」:塗布面内に異物起因で生じたハジキ部のサイズが、直径0.5mm以下。
「II」:塗布面内に異物起因で生じたハジキ部のサイズが、直径0.5mmより大きく5mm以下。
「III」:塗布面内に異物起因で生じたハジキ部のサイズが、直径5mmより大きい。
「IV」:塗り付き性が悪く、塗布面の全面でハジキ部が形成されているので、ハジキ部のサイズが議論できない。
複層フィルムの光学異方性層をガラス板に貼り合わせ、この光学異方性層から延伸基材を剥離して、ガラス板及び光学異方性層を備えるサンプルを得た。このサンプルを用いて、光学異方性層の波長450nm、550nm及び650nmでの面内レターデーションReを、ポラリメータ(Axometrics社製「AxoScan」)を用いて測定した。
〔1-1.延伸前基材の製造〕
熱可塑性ノルボルネン樹脂のペレット(日本ゼオン社製「ZEONOR1420R」)を90℃で5時間乾燥させた。乾燥させたペレットを押し出し機に供給し、押し出し機内で溶融させ、ポリマーパイプおよびポリマーフィルターを通し、Tダイからキャスティングドラム上にシート状に押し出し、冷却して、厚み60μm、幅1490mmの長尺状の延伸前基材を製造した。この製造した延伸前基材を巻き取って、ロールを得た。
前記の延伸前基材を、ロールから引き出し、テンター延伸機に供給した。そして、テンター延伸機を用いて、延伸後に得られる延伸基材の遅相軸が延伸基材の巻取方向に対して45°の角度をなすように延伸を行い、さらにフィルム幅方向の両端をトリミングし、巻き取って、幅1350mmの長尺状の延伸基材のロールを得た。得られた延伸基材の測定波長550nmにおける面内レターデーションReは148nm、膜厚は47μmであった。
逆波長重合性液晶化合物(A)100.0部、界面活性剤(AGCセイミケミカル社製「サーフロンS243」)0.30部、重合開始剤(BASF社製「IRGACURE379EG」)3.0部、並びに、溶媒としてシクロペンタノン(日本ゼオン株式会社製)188.0部及び1,3-ジオキソラン(東邦化学製)282.0部を混合して、液晶性組成物としての塗布液(L1)を製造した。
前記の延伸基材を、ロールから引き出し、長手方向に搬送しながら、下記の工程を行った。まず、ロールから引き出した延伸基材の一方の面(塗布面)に、前記の塗布液(L1)を、ダイコーターを用いて塗布して、塗布液(L1)の層を形成した。この際、塗布液(L1)は、延伸基材の面の所望の部分(具体的には、延伸基材の両端部から10mm程度以上内側の部分)だけに選択的に塗布した。その後、塗布液(L1)の層に、110℃で4分間、配向処理を施して、塗布液(L1)の層に含まれる逆波長重合性液晶化合物を配向させた。その後、N2雰囲気下で400mJ/cm2の紫外線を照射して、逆波長重合性液晶化合物を重合させた。これにより、延伸基材と、延伸基材上に形成された逆波長重合性液晶化合物が重合した重合体を含む光学異方性層とを備える複層フィルムを得た。光学異方性層の乾燥膜厚は、2.2μmであった。
光学異方性層の遅相軸方向を測定した。光学異方性層の遅相軸の角度は、延伸基材と同じく、巻取方向に対して45°の角度をなしていた。次に、この遅相軸方向における入射角毎の面内レターデーションReを、入射角-70°~70°の範囲について、10°毎に測定した。測定波長は、550nmとした。入射角0°を中心に、マイナス入射角の面内レターデーションReと、プラス入射角の面内レターデーションReとが、概ね対称となっていれば、逆波長重合性液晶化合物が重合した重合体がホモジニアス配向しているといえる。実施例1で得られた光学異方性層は、入射角毎の面内レターデーションReが0°を中心に対称となっており、ホモジニアス配向していることが確認された。
液晶性組成物の調製に用いる(i)逆波長重合性液晶化合物の種類、及び、(ii)界面活性剤の種類を、表1に示すように変更した。以上の事項以外は実施例1と同様にして、延伸基材及び光学異方性層を備える複層フィルムの製造を行った。
〔C3-1.液晶性組成物の製造〕
順波長重合性液晶化合物(LC242)(BASF社製「LC242」)100.0部、界面活性剤(AGCセイミケミカル社製「サーフロンS243」)0.30部、重合開始剤(BASF社製「IRGACURE379EG」)3.0部、並びに、溶媒としてシクロペンタノン(日本ゼオン社製)188.0部及び1,3-ジオキソラン(東邦化学社製)282.0部を混合して、液晶性組成物としての塗布液(L2)を製造した。
実施例1で製造した延伸基材を用意した。この延伸基材を、ロールから引き出し、長手方向に搬送しながら、下記の工程を行った。まず、ロールから引き出した延伸基材の一方の面(塗布面)に、前記の塗布液(L2)を、ダイコーターを用いて塗布して、塗布液(L2)の層を形成した。この際、塗布液(L2)は、延伸基材の面の所望の部分(具体的には、延伸基材の両端部から10mm程度以上内側の部分)だけに選択的に塗布した。その後、塗布液(L2)の層に、100℃で2分間、配向処理を施して、塗布液(L2)の層に含まれる順波長重合性液晶化合物を配向させた。その後、N2雰囲気下で400mJ/cm2以上の紫外線を照射して、順波長重合性液晶化合物を重合させた。これにより、延伸基材と、延伸基材上に形成された順波長重合性液晶化合物が重合した重合体を含む光学異方性層とを備える複層フィルムを得た。光学異方性層の乾燥膜厚は、1.2μmであった。こうして得られた複層フィルムの光学異方性層において、順波長重合性液晶化合物が重合した重合体がホモジニアス配向していることを、実施例1と同様の方法で確認した。また、光学異方性層の遅相軸の角度は、延伸基材と同じく、巻取方向に対して45°の角度をなしていた。
液晶性組成物の調製に用いる(i)順波長重合性液晶化合物の種類、及び、(ii)界面活性剤の種類を、表1に示すように変更した。以上の事項以外は比較例3と同様にして、延伸基材及び光学異方性層を備える複層フィルムの製造を行った。
上述した実施例及び比較例で使用した界面活性剤のフッ素原子含有量、及び、液晶性組成物としての塗布液の表面張力を上述した方法で測定した。結果を、下記の表1に示す。
また、実施例1で製造した延伸基材の塗布面の表面自由エネルギーを、上述した方法で測定した。結果を、表2に示す。表2において、「Totalγ」の値が、延伸基材の塗布面の表面自由エネルギーを表す。
さらに、上述した実施例及び比較例で製造された複層フィルムの塗り付き性及びハジキ性を、上述した方法で評価した。結果を、表1に示す。
下記の表において、略称の意味は、下記の通りである。
液晶化合物「B」:式(B)で表される逆波長重合性液晶化合物。
液晶化合物「C」:式(C)で表される逆波長重合性液晶化合物。
液晶化合物「D」:式(D)で表される逆波長重合性液晶化合物。
液晶化合物「E」:式(E)で表される逆波長重合性液晶化合物。
液晶化合物「LC242」:式(F1)で表される、順波長分散性を発現しうる重合性液晶化合物(BASF社製「LC242」)。
液晶化合物「K35」:式(F2)で表される、順波長分散性を発現しうる重合性液晶化合物。
界面活性剤「S243」:AGCセイミケミカル社製「サーフロンS243」。
界面活性剤「S611」:AGCセイミケミカル社製「サーフロンS611」。
界面活性剤「208G」:ネオス社製「フタージェントFTX-208G」。
界面活性剤「209F」:ネオス社製「フタージェントFTX-209F」。
界面活性剤「FTX218」:ネオス社製「フタージェントFTX-218」。
界面活性剤「601AD」:ネオス社製「フタージェントFTX-601AD」。
界面活性剤「F251」:DIC社製「メガファックF-251」。
界面活性剤「F444」:DIC社製「メガファックF-444」。
界面活性剤「F554」:DIC社製「メガファックF-554」。
界面活性剤「F556」:DIC社製「メガファックF-556」。
界面活性剤「F558」:DIC社製「メガファックF-558」。
界面活性剤「NS9013」:ダイキン社製「NS-9013」。
界面活性剤「PF656」:OMNOVA社製「ポリフォックスPF-656」。
界面活性剤「PF6520」:OMNOVA社製「ポリフォックスPF-6520」。
F量:界面活性剤の分子中のフッ素原子の割合。
表1及び表2に示した結果から明らかな通り、実施例において、表面張力が26mN/m以上の液晶性組成物としての塗布液は、表面自由エネルギーが39.1mN/mと低い塗布面に塗布されていながら、塗り付き性が高く且つハジキ性が小さい。他方、表面張力が26mN/m未満の比較例1~2に係る塗布液は、塗り付き性が低く且つハジキ性が大きいので、塗布性に劣る。一般的な技術常識によれば、ある液体をある面に塗布する場合、前記の面の表面自由エネルギーよりも前記液体の表面張力が低いほど塗布性が良好になると考えられていた。この技術常識に鑑みると、液晶性組成物の表面張力を26mN/m以上の所定範囲に収めることには、表面自由エネルギーが低い塗布面に塗布する際の塗布性を改善する上で、特異的な作用があるといえる。
110 塗布面
120 塗り付け位置
130 異物
200 液晶性組成物の層
210 液晶性組成物の層の外縁
220 ハジキ部
Claims (7)
- 基材及び光学異方性層を備える複層フィルムの製造方法であって、
前記基材の面に、逆波長分散性の複屈折を発現しうる重合性液晶化合物を含む液晶性組成物を塗布して、前記液晶性組成物の層を形成する工程と、
前記液晶性組成物の層に含まれる前記重合性液晶化合物を重合させて、光学異方性層を得る工程と、を含み、
前記基材の前記面の表面自由エネルギーが、50mN/m以下であり、
前記液晶性組成物の表面張力が、26mN/m以上である、複層フィルムの製造方法。 - 前記重合性液晶化合物が、前記重合性液晶化合物の分子中に、主鎖メソゲンと、前記主鎖メソゲンに結合した側鎖メソゲンとを含む、請求項1記載の複層フィルムの製造方法。
- 前記重合性液晶化合物が、下記式(I)で表される、請求項1又は2記載の複層フィルムの製造方法。
(前記式(I)において、
Y1~Y8は、それぞれ独立して、化学的な単結合、-O-、-S-、-O-C(=O)-、-C(=O)-O-、-O-C(=O)-O-、-NR1-C(=O)-、-C(=O)-NR1-、-O-C(=O)-NR1-、-NR1-C(=O)-O-、-NR1-C(=O)-NR1-、-O-NR1-、又は、-NR1-O-を表す。ここで、R1は、水素原子又は炭素数1~6のアルキル基を表す。
G1及びG2は、それぞれ独立して、置換基を有していてもよい、炭素数1~20の二価の脂肪族基を表す。また、前記脂肪族基には、1つの脂肪族基当たり1以上の-O-、-S-、-O-C(=O)-、-C(=O)-O-、-O-C(=O)-O-、-NR2-C(=O)-、-C(=O)-NR2-、-NR2-、又は、-C(=O)-が介在していてもよい。ただし、-O-又は-S-がそれぞれ2以上隣接して介在する場合を除く。ここで、R2は、水素原子又は炭素数1~6のアルキル基を表す。
Z1及びZ2は、それぞれ独立して、ハロゲン原子で置換されていてもよい炭素数2~10のアルケニル基を表す。
Axは、芳香族炭化水素環及び芳香族複素環からなる群から選ばれる少なくとも一つの芳香環を有する、炭素数2~30の有機基を表す。
Ayは、水素原子、置換基を有していてもよい炭素数1~20のアルキル基、置換基を有していてもよい炭素数2~20のアルケニル基、置換基を有していてもよい炭素数3~12のシクロアルキル基、置換基を有していてもよい炭素数2~20のアルキニル基、-C(=O)-R3、-SO2-R4、-C(=S)NH-R9、又は、芳香族炭化水素環及び芳香族複素環からなる群から選ばれる少なくとも一つの芳香環を有する、炭素数2~30の有機基を表す。ここで、R3は、置換基を有していてもよい炭素数1~20のアルキル基、置換基を有していてもよい炭素数2~20のアルケニル基、置換基を有していてもよい炭素数3~12のシクロアルキル基、又は、炭素数5~12の芳香族炭化水素環基を表す。R4は、炭素数1~20のアルキル基、炭素数2~20のアルケニル基、フェニル基、又は、4-メチルフェニル基を表す。R9は、置換基を有していてもよい炭素数1~20のアルキル基、置換基を有していてもよい炭素数2~20のアルケニル基、置換基を有していてもよい炭素数3~12のシクロアルキル基、又は、置換基を有していてもよい炭素数5~20の芳香族基を表す。前記Ax及びAyが有する芳香環は、置換基を有していてもよい。また、前記AxとAyは、一緒になって、環を形成していてもよい。
A1は、置換基を有していてもよい三価の芳香族基を表す。
A2及びA3は、それぞれ独立して、置換基を有していてもよい炭素数3~30の二価の脂環式炭化水素基を表す。
A4及びA5は、それぞれ独立して、置換基を有していてもよい、炭素数6~30の二価の芳香族基を表す。
Q1は、水素原子、又は、置換基を有していてもよい炭素数1~6のアルキル基を表す。
m及びnは、それぞれ独立に、0又は1を表す。) - 前記基材が、延伸フィルムである、請求項1~3のいずれか一項に記載の複層フィルムの製造方法。
- 前記基材が、脂環式構造含有重合体を含む樹脂からなる、請求項1~4のいずれか一項に記載の複層フィルムの製造方法。
- 前記基材の前記面が、表面処理を施されていない非処理面である、請求項1~5のいずれか一項に記載の複層フィルムの製造方法。
- 基材と、
50mN/m以下の表面自由エネルギーを有する前記基材の面に、逆波長分散性の複屈折を発現しうる重合性液晶化合物を含み且つ26mN/m以上の表面張力を有する液晶性組成物を塗布し、前記重合性液晶化合物を重合させて得られる光学異方性層とを備える、複層フィルム。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201680023100.3A CN107533179A (zh) | 2015-04-24 | 2016-04-12 | 多层膜的制造方法及多层膜 |
| KR1020177030123A KR20170139535A (ko) | 2015-04-24 | 2016-04-12 | 복층 필름의 제조 방법 및 복층 필름 |
| JP2017514080A JPWO2016171041A1 (ja) | 2015-04-24 | 2016-04-12 | 複層フィルムの製造方法及び複層フィルム |
| US15/567,995 US20180120487A1 (en) | 2015-04-24 | 2016-04-12 | Multilayer film manufacturing method and multilayer film |
| EP16783062.9A EP3287819A4 (en) | 2015-04-24 | 2016-04-12 | PROCESS FOR MANUFACTURING MULTILAYER FILM AND MULTILAYER FILM |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015089498 | 2015-04-24 | ||
| JP2015-089498 | 2015-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016171041A1 true WO2016171041A1 (ja) | 2016-10-27 |
Family
ID=57142990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2016/061824 Ceased WO2016171041A1 (ja) | 2015-04-24 | 2016-04-12 | 複層フィルムの製造方法及び複層フィルム |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20180120487A1 (ja) |
| EP (1) | EP3287819A4 (ja) |
| JP (1) | JPWO2016171041A1 (ja) |
| KR (1) | KR20170139535A (ja) |
| CN (1) | CN107533179A (ja) |
| TW (1) | TW201641556A (ja) |
| WO (1) | WO2016171041A1 (ja) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018096938A1 (ja) * | 2016-11-22 | 2018-05-31 | 日本ゼオン株式会社 | 重合性化合物、重合性組成物、高分子、光学フィルム、光学異方体、偏光板、フラットパネル表示装置、有機エレクトロルミネッセンス表示装置、反射防止フィルム、および化合物 |
| WO2019034590A1 (en) | 2017-08-15 | 2019-02-21 | Merck Patent Gmbh | POLYMERIZABLE LIQUID CRYSTALLINE MATERIAL AND POLYMERIZED LIQUID CRYSTALLINE FILM |
| WO2019034592A1 (en) | 2017-08-15 | 2019-02-21 | Merck Patent Gmbh | POLYMERIZABLE LC MEDIUM AND POLYMER FILM HAVING FLAT OPTICAL DISPERSION |
| WO2019116991A1 (ja) * | 2017-12-12 | 2019-06-20 | 日本ゼオン株式会社 | 液晶配向層及びその製造方法、光学フィルム及びその製造方法、1/4波長板、偏光板並びに有機エレクトロルミネッセンス表示パネル |
| JP2022091708A (ja) * | 2020-12-04 | 2022-06-21 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | 重合性液晶材料および重合された液晶フィルム |
| EP4039776A2 (en) | 2020-11-20 | 2022-08-10 | Merck Patent GmbH | Polymerisable lc material and polymer film |
| WO2023061903A1 (en) | 2021-10-11 | 2023-04-20 | Merck Patent Gmbh | Polymerisable compound, polymerisable lc material and polymer film |
| WO2023237572A1 (en) | 2022-06-10 | 2023-12-14 | Merck Patent Gmbh | Polymerisable liquid crystal medium and polymerised liquid crystal film |
| WO2024061796A1 (en) | 2022-09-21 | 2024-03-28 | Merck Patent Gmbh | Polymerisable liquid crystal medium and polymerised liquid crystal film |
| WO2024062850A1 (ja) * | 2022-09-22 | 2024-03-28 | 富士フイルム株式会社 | 光学フィルム、光学フィルムの製造方法、偏光板および画像表示装置 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017154598A1 (ja) * | 2016-03-08 | 2017-09-14 | 日本ゼオン株式会社 | 液晶性組成物、液晶硬化層及びその液晶硬化層の製造方法 |
| CN105807359B (zh) * | 2016-05-30 | 2017-04-05 | 京东方科技集团股份有限公司 | 线偏光层、圆偏光层、柔性显示装置及其制备方法 |
| JP7398868B2 (ja) * | 2018-02-14 | 2023-12-15 | 住友化学株式会社 | 組成物 |
| US11447700B2 (en) * | 2018-02-20 | 2022-09-20 | Zeon Corporation | Liquid crystal cured layer, production method therefor, optical film, polarizing plate, and display device |
| KR102842546B1 (ko) * | 2018-12-27 | 2025-08-04 | 니폰 제온 가부시키가이샤 | 필름의 제조 방법, 및 제조 장치 그리고 액정 경화 필름의 제조 방법 |
| CN118068574A (zh) * | 2020-01-15 | 2024-05-24 | 富士胶片株式会社 | 光学系统 |
| CN115047552A (zh) * | 2021-03-09 | 2022-09-13 | 四川龙华光电薄膜股份有限公司 | 相位延迟膜及补偿膜 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013018526A1 (ja) * | 2011-07-29 | 2013-02-07 | 日本ゼオン株式会社 | 光学異方体の波長分散調整方法及び重合性組成物 |
| WO2014065243A1 (ja) * | 2012-10-22 | 2014-05-01 | 日本ゼオン株式会社 | 位相差板、円偏光板、及び画像表示装置 |
| WO2014069515A1 (ja) * | 2012-10-30 | 2014-05-08 | 日本ゼオン株式会社 | 液晶組成物、位相差板、画像表示装置、および光学異方性層の波長分散制御方法 |
| WO2015137446A1 (ja) * | 2014-03-13 | 2015-09-17 | 富士フイルム株式会社 | 液晶表示装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2631015B2 (ja) * | 1989-06-06 | 1997-07-16 | 株式会社リコー | 液晶性高分子の配向方法 |
| US7719644B2 (en) * | 2005-02-25 | 2010-05-18 | Fujifilm Corporation | Optical compensation sheet, polarizing plate and liquid crystal display |
| JP4756161B2 (ja) * | 2007-02-23 | 2011-08-24 | 日本ゼオン株式会社 | 円偏光分離シート、製造方法及び液晶表示装置 |
| CA2729748A1 (en) * | 2008-07-02 | 2010-01-07 | Sirius Xm Radio Inc. | Method to minimize interference into legacy sdars reception by varying overlay modulation as a function of satellite position |
| CN107253935B (zh) * | 2012-07-09 | 2020-10-09 | 日本瑞翁株式会社 | 肼化合物、聚合性化合物的制备方法及将肼化合物作为聚合性化合物的制造原料使用的方法 |
| EP3064969B1 (en) * | 2013-10-28 | 2024-10-16 | Zeon Corporation | Multilayer film, optically anisotropic laminate, circular polarizer and manufacturing methods |
| WO2017154598A1 (ja) * | 2016-03-08 | 2017-09-14 | 日本ゼオン株式会社 | 液晶性組成物、液晶硬化層及びその液晶硬化層の製造方法 |
-
2016
- 2016-04-12 CN CN201680023100.3A patent/CN107533179A/zh active Pending
- 2016-04-12 JP JP2017514080A patent/JPWO2016171041A1/ja active Pending
- 2016-04-12 KR KR1020177030123A patent/KR20170139535A/ko not_active Withdrawn
- 2016-04-12 WO PCT/JP2016/061824 patent/WO2016171041A1/ja not_active Ceased
- 2016-04-12 EP EP16783062.9A patent/EP3287819A4/en not_active Withdrawn
- 2016-04-12 US US15/567,995 patent/US20180120487A1/en not_active Abandoned
- 2016-04-15 TW TW105111773A patent/TW201641556A/zh unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013018526A1 (ja) * | 2011-07-29 | 2013-02-07 | 日本ゼオン株式会社 | 光学異方体の波長分散調整方法及び重合性組成物 |
| WO2014065243A1 (ja) * | 2012-10-22 | 2014-05-01 | 日本ゼオン株式会社 | 位相差板、円偏光板、及び画像表示装置 |
| WO2014069515A1 (ja) * | 2012-10-30 | 2014-05-08 | 日本ゼオン株式会社 | 液晶組成物、位相差板、画像表示装置、および光学異方性層の波長分散制御方法 |
| WO2015137446A1 (ja) * | 2014-03-13 | 2015-09-17 | 富士フイルム株式会社 | 液晶表示装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3287819A4 * |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996780A (zh) * | 2016-11-22 | 2019-07-09 | 日本瑞翁株式会社 | 聚合性化合物、聚合性组合物、高分子、光学膜、光学各向异性体、偏振片、平板显示装置、有机电致发光显示装置、防反射膜和化合物 |
| WO2018096938A1 (ja) * | 2016-11-22 | 2018-05-31 | 日本ゼオン株式会社 | 重合性化合物、重合性組成物、高分子、光学フィルム、光学異方体、偏光板、フラットパネル表示装置、有機エレクトロルミネッセンス表示装置、反射防止フィルム、および化合物 |
| JPWO2018096938A1 (ja) * | 2016-11-22 | 2019-10-17 | 日本ゼオン株式会社 | 重合性化合物、重合性組成物、高分子、光学フィルム、光学異方体、偏光板、フラットパネル表示装置、有機エレクトロルミネッセンス表示装置、反射防止フィルム、および化合物 |
| TWI794268B (zh) * | 2017-08-15 | 2023-03-01 | 德商馬克專利公司 | 可聚合的液晶材料及經聚合的液晶膜 |
| JP7270603B2 (ja) | 2017-08-15 | 2023-05-10 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | 重合性lc媒体およびフラット光学分散を有するポリマーフィルム |
| WO2019034592A1 (en) | 2017-08-15 | 2019-02-21 | Merck Patent Gmbh | POLYMERIZABLE LC MEDIUM AND POLYMER FILM HAVING FLAT OPTICAL DISPERSION |
| KR20200039763A (ko) * | 2017-08-15 | 2020-04-16 | 메르크 파텐트 게엠베하 | 평탄 광학 분산을 갖는 중합가능 액정 매질 및 중합체 필름 |
| CN111032826A (zh) * | 2017-08-15 | 2020-04-17 | 默克专利股份有限公司 | 具有平坦光色散的可聚合lc介质和聚合物膜 |
| KR20200041922A (ko) * | 2017-08-15 | 2020-04-22 | 메르크 파텐트 게엠베하 | 중합가능 액정 물질 및 중합된 액정 필름 |
| JP2020531615A (ja) * | 2017-08-15 | 2020-11-05 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングMerck Patent Gesellschaft mit beschraenkter Haftung | 重合性lc媒体およびフラット光学分散を有するポリマーフィルム |
| KR102720796B1 (ko) | 2017-08-15 | 2024-10-23 | 메르크 파텐트 게엠베하 | 중합가능 액정 물질 및 중합된 액정 필름 |
| KR102720800B1 (ko) | 2017-08-15 | 2024-10-23 | 메르크 파텐트 게엠베하 | 평탄 광학 분산을 갖는 중합가능 액정 매질 및 중합체 필름 |
| WO2019034590A1 (en) | 2017-08-15 | 2019-02-21 | Merck Patent Gmbh | POLYMERIZABLE LIQUID CRYSTALLINE MATERIAL AND POLYMERIZED LIQUID CRYSTALLINE FILM |
| US12031079B2 (en) | 2017-08-15 | 2024-07-09 | Merck Patent Gmbh | Polymerisable LC medium and polymer film with flat optical dispersion |
| US11939510B2 (en) | 2017-08-15 | 2024-03-26 | Merck Patent Gmbh | Polymerisable liquid crystal material and polymerised liquid crystal film |
| CN111032826B (zh) * | 2017-08-15 | 2023-08-22 | 默克专利股份有限公司 | 具有平坦光色散的可聚合lc介质和聚合物膜 |
| WO2019116991A1 (ja) * | 2017-12-12 | 2019-06-20 | 日本ゼオン株式会社 | 液晶配向層及びその製造方法、光学フィルム及びその製造方法、1/4波長板、偏光板並びに有機エレクトロルミネッセンス表示パネル |
| US11851600B2 (en) | 2020-11-20 | 2023-12-26 | Merck Patent Gmbh | Polymerizable LC material and polymer film |
| EP4039776A2 (en) | 2020-11-20 | 2022-08-10 | Merck Patent GmbH | Polymerisable lc material and polymer film |
| JP2022091708A (ja) * | 2020-12-04 | 2022-06-21 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | 重合性液晶材料および重合された液晶フィルム |
| WO2023061903A1 (en) | 2021-10-11 | 2023-04-20 | Merck Patent Gmbh | Polymerisable compound, polymerisable lc material and polymer film |
| WO2023237572A1 (en) | 2022-06-10 | 2023-12-14 | Merck Patent Gmbh | Polymerisable liquid crystal medium and polymerised liquid crystal film |
| WO2024061796A1 (en) | 2022-09-21 | 2024-03-28 | Merck Patent Gmbh | Polymerisable liquid crystal medium and polymerised liquid crystal film |
| WO2024062850A1 (ja) * | 2022-09-22 | 2024-03-28 | 富士フイルム株式会社 | 光学フィルム、光学フィルムの製造方法、偏光板および画像表示装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201641556A (zh) | 2016-12-01 |
| KR20170139535A (ko) | 2017-12-19 |
| JPWO2016171041A1 (ja) | 2018-02-15 |
| CN107533179A (zh) | 2018-01-02 |
| EP3287819A1 (en) | 2018-02-28 |
| EP3287819A4 (en) | 2019-02-06 |
| US20180120487A1 (en) | 2018-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016171041A1 (ja) | 複層フィルムの製造方法及び複層フィルム | |
| US10533137B2 (en) | Liquid crystal composition, method for producing retardation layer, and circularly polarizing plate | |
| WO2017057005A1 (ja) | 光学フィルム及びその製造方法 | |
| JP6641683B2 (ja) | 樹脂フィルム、λ/4板、円偏光板、有機エレクトロルミネッセンス表示装置、及び製造方法 | |
| JP7052718B2 (ja) | 液晶性組成物、液晶硬化層及びその液晶硬化層の製造方法 | |
| JP6442886B2 (ja) | 複層フィルム、位相差フィルム、円偏光板、及び、有機エレクトロルミネッセンス表示装置の製造方法 | |
| JP6844615B2 (ja) | 液晶硬化フィルム及びその製造方法 | |
| JPWO2017110638A1 (ja) | 液晶性組成物、液晶硬化層及びその製造方法、並びに、光学フィルム | |
| EP3605168A1 (en) | Liquid crystal cured film and method for manufacturing same | |
| JP6446860B2 (ja) | 複層フィルム、位相差フィルム、円偏光板、及び、有機エレクトロルミネッセンス表示装置の製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16783062 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2017514080 Country of ref document: JP Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 20177030123 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 15567995 Country of ref document: US |
|
| REEP | Request for entry into the european phase |
Ref document number: 2016783062 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |