WO2022119271A1 - 자일릴렌디이소시아네이트 조성물 및 이를 포함하는 광학 조성물 - Google Patents
자일릴렌디이소시아네이트 조성물 및 이를 포함하는 광학 조성물 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/18—Separation; Purification; Stabilisation; Use of additives
- C07C263/20—Separation; Purification
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C265/00—Derivatives of isocyanic acid
- C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3855—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3855—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur
- C08G18/3876—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur containing mercapto groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6453—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63 having sulfur
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/71—Monoisocyanates or monoisothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/71—Monoisocyanates or monoisothiocyanates
- C08G18/712—Monoisocyanates or monoisothiocyanates containing halogens
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7628—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring containing at least one isocyanate or isothiocyanate group linked to the aromatic ring by means of an aliphatic group
- C08G18/7642—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring containing at least one isocyanate or isothiocyanate group linked to the aromatic ring by means of an aliphatic group containing at least two isocyanate or isothiocyanate groups linked to the aromatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate groups, e.g. xylylene diisocyanate or homologues substituted on the aromatic ring
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
Definitions
- the present invention relates to a xylylene diisocyanate composition and an optical composition comprising the same. More specifically, it relates to a xylylene diisocyanate composition prepared through reaction of an amine salt and an optical composition comprising the same.
- a diisocyanate compound is widely used as a manufacturing raw material of a polyurethane-type resin, for example.
- a diisocyanate compound is used for manufacturing an optical lens in which a polyurethane-based resin is used, and the physical properties of the diisocyanate compound as a manufacturing raw material may directly affect optical properties such as transparency and refractive index of the optical lens.
- a polythiourethane-based resin prepared by reacting a polythiol compound and a diisocyanate compound may be used as the base material of the optical lens.
- xylylenediisocyanate (XDI) is widely used in consideration of chemical and optical properties such as reactivity and transparency.
- a polymerizable composition for an optical lens may be prepared by preparing a composition including XDI and mixing it with a composition including a polythiol compound.
- a composition including XDI may be prepared by preparing a composition including XDI and mixing it with a composition including a polythiol compound.
- a composition including a polythiol compound In consideration of the stability of XDI and appropriate reactivity with the polythiol compound, it is necessary to design the physical properties of the composition of XDI, the synthesis process, and the like.
- Korean Patent Publication No. 2012-0076329 discloses a urethane-based optical material prepared using an isocyanate compound.
- the physical properties of the isocyanate composition itself are not considered.
- One object according to the exemplary embodiments is to provide a xylylene diisocyanate composition having improved reaction stability and optical properties.
- One object according to exemplary embodiments is to provide an optical composition comprising a xylylene diisocyanate composition having improved reaction stability and optical properties.
- the xylylene diisocyanate composition includes xylylene diisocyanate (XDI) and chloromethylbenzyl isocyanate (CBI), and satisfies Formula 1 below.
- A is the CBI content value converted to ppm in the XDI composition
- B is the acidity value of the XDI composition converted to ppm.
- a and B respectively represent numerical values in which the ppm unit is omitted.
- the content of chloromethylbenzyl isocyanate in the total weight of the composition may be 600 ppm to 1,000 ppm.
- the xylylene diisocyanate composition may further include an acidity control agent.
- the xylylene diisocyanate composition may have an acidity in the range of 100 ppm to 350 ppm.
- the optical composition according to exemplary embodiments includes a xylylene diisocyanate composition that includes xylylene diisocyanate (XDI) and chloromethylbenzyl isocyanate (CBI) and satisfies Formula 1 below, and a polythiol-based compound.
- XDI xylylene diisocyanate
- CBI chloromethylbenzyl isocyanate
- A is the CBI content value converted to ppm in the XDI composition
- B is the acidity value of the XDI composition converted to ppm.
- a and B respectively represent numerical values in which the ppm unit is omitted.
- the optical composition may further include an additive including a release agent, a reaction catalyst, a heat stabilizer, an ultraviolet absorber, and/or a blueing agent.
- an additive including a release agent, a reaction catalyst, a heat stabilizer, an ultraviolet absorber, and/or a blueing agent.
- an optical product including a polythiourethane resin prepared from the above-described polymerizable composition is provided.
- xylylene diisocyanate is synthesized from xylylene diamine to form a preliminary composition including xylylene diisocyanate.
- a method for producing a xylylene diisocyanate composition comprising the step of adjusting the content and acidity of chloromethylbenzyl isocyanate (CBI) in the preliminary composition through a distillation process at a temperature of 110 to 135°C.
- CBI chloromethylbenzyl isocyanate
- imidazole in the range of 200 ppm to 1,000 ppm may be added during the distillation process.
- the distillation process may be controlled to satisfy Equation 1 by adjusting the content and acidity of chloromethylbenzyl isocyanate (CBI) in the preliminary composition.
- CBI chloromethylbenzyl isocyanate
- A is the CBI content value converted to ppm in the XDI composition
- B is the acidity value of the XDI composition converted to ppm.
- a and B respectively represent numerical values in which the ppm unit is omitted.
- the xylylene diisocyanate composition satisfies a predetermined relationship between acidity and the content of chloromethylbenzyl isocyanate (CBI), and thus has improved stability and polymerization reaction rate in an appropriate range with the polythiol-based compound.
- CBI chloromethylbenzyl isocyanate
- an optical lens having a high transmittance and improved optical uniformity from which cloudiness and streaking are substantially removed can be manufactured.
- a composition (hereinafter, may be abbreviated as XDI composition) including xylylene diisocyanate (XDI) is provided.
- the XDI composition may include XDI and further include chloromethyl benzyl isocyanate (CBI).
- CBI may be included in the XDI composition in a small amount to improve the stability of the composition and function as a compound to control the reaction rate.
- the content of CBI in the XDI composition may be in the range of about 600 ppm to 1000 ppm. Within the above range, it is possible to effectively suppress streaks and cloudiness of the XDI composition or an optical lens prepared therefrom while suppressing an excessive decrease in the reaction rate of the XDI composition.
- the content of CBI in the XDI composition may be in the range of about 600 ppm to 800 ppm. More preferably, the content of CBI in the XDI composition may be in the range of 650 ppm to 800 ppm, or 650 ppm to 750 ppm.
- CBI may be generated together in the preparation or synthesis of the xylylene diisocyanate composition to be described later and included in the XDI composition. As will be described later, in one embodiment, the content of CBI may be adjusted through temperature control in the distillation process.
- CBI may include orthochloromethylbenzyl isocyanate, metachloromethylbenzyl isocyanate, parachloromethylbenzyl isocyanate. These may be included in the XDI composition alone or in combination of two or more.
- acidity may be controlled, for example, optical and chemical stability of the composition and reactivity with a polythiol compound may be controlled.
- acidity used in the present application may be a value expressed as a ratio to the total weight of XDI in terms of, for example, the amount of an acid component freed by reaction with alcohol at room temperature in terms of HCl.
- acidity may be expressed in ppm.
- the XDI composition may satisfy Equation 1 below.
- A represents the content of CBI in the XDI composition
- B represents the acidity of the XDI composition.
- a and B used in Equation 1 are used as numerical values omitting the unit (ppm).
- the acidity of the XDI composition when the acidity of the XDI composition is too low, the reactivity with the polythiol-based compound may be excessively increased. Accordingly, instead of the desired polythiourethane resin, for example, other by-products in the form of oligomers or polymers may be increased, and optical non-uniformity of the lens may be increased to cause streaks. In addition, the self-reactivity of XDI is also increased, which may cause cloudiness during long-term storage.
- the acidity of the XDI composition When the acidity of the XDI composition is excessively increased, the reactivity with the polythiol-based compound may decrease. Accordingly, the process yield of the polythiourethane resin for manufacturing the optical lens may be reduced. In addition, cloudiness or yellowing may result in molded lenses.
- the content of CBI may be considered together as a buffering factor of acidity. For example, if the acidity of the XDI composition is excessively increased, the content of CBI may be lowered. When the acidity of the XDI composition is too low, the content of CBI may be relatively increased.
- the reactivity or reaction rate factor may be adjusted by weighting the content of CBI indicated by A and the acidity of the XDI composition indicated by B. For example, as shown in Equation 1, it can be managed by giving an increased weight compared to the CBI content to the acidity, which is more sensitive to the physical properties of the polymerizable optical composition or optical product such as a lens.
- the value according to Equation 1 is greater than 400 and may be less than 600. More preferably, the value according to Equation 1 may be 410 to 580, or 430 to 580.
- desired lens properties can be more finely and stably controlled by considering both the CBI content and acidity as reactivity/stability control factors of the XDI composition.
- the content of CBI may be adjusted to be low to be adjusted to the range defined in Equation 1. In one example, when the acidity is too low, the CBI content may be adjusted to be high to be adjusted to the range defined in Equation 1.
- the acidity of the XDI composition may be adjusted in the range of about 100 ppm to 350 ppm.
- the acidity of the XDI composition may be 100 ppm to 250 ppm, more preferably 110 ppm to 230 ppm.
- an acidity adjusting agent may be used to adjust the acidity of the XDI composition.
- the acidity of the XDI composition may be controlled to satisfy the range of Equation 1 by adding an acidity regulator during the distillation process to be described later.
- the acidity control agent may include an inorganic acid compound, an organic acid compound, or a solid acid.
- the inorganic acid compound examples include halogen acids such as hydrochloric acid, hydrobromic acid, iodic acid, etc., sulfuric acid, phosphoric acid, phosphoric acid derivatives, SOCl 2 or SO 2 Cl 2 or Lewis acids capable of releasing chlorine ions such as, etc. .
- the phosphoric acid-based derivative may include a phosphoric acid ester-based compound such as a phosphate-based compound or a phosphonate-based compound.
- the phosphoric acid derivative may include a compound of Formula 1 below.
- n 1 or 2.
- organic acid compound examples include acetic acid, benzoic acid, formic acid, trifluoroacetic acid (TFA), fatty acid, aliphatic or cycloaliphatic carboxylic acid halide (such as acetyl chloride, trichloroacetyl chloride or N-chloroacetamide or N -bromosuccinimide); aromatic carboxylic acid halides (eg, benzoyl chloride, phthaloyl chloride, terephthaloyl dichloride, isophthaloyl dichloride); aromatic, aliphatic or cycloaliphatic carbamyl chloride (eg, N-phenylcarbamyl chloride, tert-butylcarbamyl chloride); acidic chlorosilane compounds (eg, trimethylsilyl chloride, trimethylsilyl trifluoromethanesulfonate); sulfonic acid halides (eg, tosyl chloride); and the like.
- the solid acid may include acid clay, silica alumina, a cation exchange resin, acid-attached silica gel, or a solid acid such as alumina, aluminum oxide, or vanadium oxide.
- the acidity control agent may include a basic compound that is not substantially reactive with XDI.
- the acidity regulator may include a cyclic amine such as imidazole, tetrazole, pyridine, or the like, or a tertiary amine such as N,N-dimethylaniline (PhNMe2), triethylamine, trimethylamine, and the like.
- the XDI content in the XDI composition may be 90 wt% or more, 95 wt% or more, or 99 wt% or more, for example, 99 wt% or more to less than 100 wt%.
- a method of making an XDI composition is provided.
- xylylene diisocyanate (XDI) included in the XDI composition may be synthesized from xylylene diamine.
- XDI may be synthesized from xylylenediamine through a phosgene method.
- xylylenediamine can be reacted with concentrated hydrochloric acid in a solvent to form an amine salt.
- XDI may be synthesized by reacting the amine salt with phosgene (COCl 2 ) (see Scheme 1 below).
- XDI may be synthesized from xylylenediamine through a biphosgene method.
- xylylenediamine can be reacted with concentrated hydrochloric acid to form an amine salt.
- the amine salt can be reacted with a halodialkyl carbonate to form a biscarbamate.
- XDI may be synthesized by thermally decomposing or degassing the biscarbamate in the presence of a catalyst (refer to Scheme 2 below).
- BTMC bis(trichloromethyl)carbonate
- a first solution in which the amine salt is dissolved in an inert solvent may be prepared, and a second solution in which the halodialkyl carbonate is dissolved in an inert solvent may be prepared.
- the biscarbamate synthesis reaction may proceed while the second solution is added dropwise to the first solution into the reactor.
- the temperature in the reactor may be maintained, for example, in the range of about 120°C to 150°C, preferably 120°C to 140°C.
- the reaction may proceed with stirring for about 1 hour to 8 hours, or 2 hours to 6 hours, preferably 3 hours to 5 hours.
- a degassing process may be performed by supplying an inert gas to the reaction solution while maintaining the temperature in the above range. Then, the reaction solution may be cooled, and a preliminary XDI composition may be obtained through filtration and drying processes.
- the reaction solution may be cooled to about 5° C. to 20° C., preferably about 10° C. to 20° C., and more preferably about 10° C. to 15° C. Thereafter, the preliminary XDI composition may be filtered using a ceramic filter such as a Celite-based filter.
- a ceramic filter such as a Celite-based filter.
- a distillation process may be further performed to remove the inert solvent and take out XDI.
- the first distillation for removing the inert solvent and the second distillation for taking out XDI may be sequentially performed.
- the first distillation temperature may be appropriately adjusted according to the boiling point of the inert solvent.
- the second distillation temperature may be performed at a temperature greater than or equal to the boiling point of XDI.
- the inert solvent may include an organic solvent that is not substantially reactive with the amine salt, XDI, and the halodialkyl carbonate.
- an organic solvent having a lower boiling point than XDI may be used for performing the above-described distillation process.
- the inert solvent may include a chlorinated aromatic hydrocarbon, for example, monochlorobenzene, dichlorobenzene, trichlorobenzene, chloroethylbenzene, and the like.
- a chlorinated aromatic hydrocarbon for example, monochlorobenzene, dichlorobenzene, trichlorobenzene, chloroethylbenzene, and the like.
- the first distillation temperature may be 40 °C to 80 °C, preferably 50 °C to 70 °C, more preferably 55 °C to 65 °C.
- the content of CBI in the XDI composition may be adjusted to the above-described range by controlling the temperature of the distillation process.
- the second distillation temperature may be adjusted in the range of 110 °C to 135 °C.
- XDI extraction or purification is sufficiently performed within the second distillation temperature range, and the CBI content can be prevented from being excessively increased (eg, more than 1,000 ppm).
- the second distillation temperature may be 110 °C to 130 °C, more preferably 110 °C to 120 °C.
- the above-described acidity control agent may be added in the distillation process.
- the acidity of the preliminary XDI composition prepared as described above is measured, and when it is outside the range defined in Equation 1, the acidity control agent may be added during the second distillation process.
- an acidic acidity adjusting agent may be added.
- the acidity adjusting agent may include the above-mentioned inorganic acid compound, organic acid compound, or solid acid.
- a liquid organic acid compound may be used.
- imidazole may be used as the acidity control agent.
- the input amount of imidazole may be about 500 ppm to 10,000 ppm of the preliminary XDI composition.
- an appropriate acidity and reactivity of the XDI composition can be easily maintained. Accordingly, lens opacity due to excessively high acidity or streaks and chemical instability due to excessively low acidity can be suppressed.
- an optical composition eg, an optically polymerizable composition
- the XDI composition prepared as described above is provided.
- the polymerizable composition may include a polythiol-based compound and the XDI composition.
- the polythiol-based compound may include a trifunctional polythiol compound and/or a tetrafunctional polythiol compound.
- a non-limiting example of the trifunctional polythiol compound may include a compound represented by the following formula (1).
- the trifunctional polythiol compound may be synthesized from, for example, a polyol compound obtained through a reaction with 2-mercaptoethanol and epihalohydrin.
- a trifunctional polythiol compound can be prepared through hydrolysis under basic conditions.
- Non-limiting examples of the tetrafunctional polythiol compound include compounds represented by the following Chemical Formulas 2-1 to 2-3.
- the tetrafunctional polythiol compound may be synthesized from, for example, a polyol compound obtained through a reaction with 2-mercaptoethanol and epihalohydrin.
- the polyol compound may be reacted with a metal sulfide to produce a tetrafunctional polyol intermediate.
- a tetrafunctional polythiol compound can be prepared by hydrolysis under basic conditions.
- the optical composition may further include additives such as a release agent, a reaction catalyst, a heat stabilizer, an ultraviolet absorber, a blueing agent, and the like.
- the releasing agent examples include a fluorine-based nonionic surfactant having a perfluoroalkyl group, a hydroxyalkyl group or a phosphoric acid ester group; a silicone-based nonionic surfactant having a dimethylpolysiloxane group, a hydroxyalkyl group or a phosphoric acid ester group; alkyl quaternary ammonium salts such as trimethylcetyl ammonium salt, trimethylstearyl, dimethylethylcetyl ammonium salt, triethyldodecyl ammonium salt, trioctylmethyl ammonium salt and diethylcyclohexadodecyl ammonium salt; Acidic phosphoric acid ester etc. are mentioned. These may be used alone or in combination of two or more.
- a catalyst used in the polymerization reaction of the polythiourethane-based resin may be used.
- dialkyl tin halide type catalysts such as dibutyl tin dichloride and dimethyl tin dichloride
- dialkyl tin dicarboxylate catalysts such as dimethyl tin diacetate, dibutyl tin dioctanoate, and dibutyl tin dilaurate
- dialkyl tin dialkoxide catalysts such as dibutyltin dibutoxide and dioctyltin dibutoxide
- dialkyl tin dithio alkoxide catalysts such as dibutyltin di(thiobutoxide)
- dialkyl tin oxide catalysts such as di(2-ethylhexyl)tin oxide, dioctyltin oxide, and bis(butoxydibutyltin)oxide
- the ultraviolet absorber a benzophenone-based, benzotriazole-based, salicylate-based, cyanoacrylate-based, oxanilide-based compound and the like may be used.
- a metal fatty acid salt-based, phosphorus-based, lead-based, organotin-based compound and the like may be used. These may be used alone or in combination of two or more.
- the bluing agent may be included as a color control agent of the optical material prepared from the polythiourethane resin.
- the bluing agent may have an absorption band in a wavelength band from orange to yellow in a visible light region.
- the bluing agent examples include a dye, a fluorescent brightener, a fluorescent pigment, an inorganic pigment, and the like, and may be appropriately selected according to the physical properties or resin color required for the manufactured optical product.
- a dye for example, a dye having a maximum absorption wavelength of 520 nm to 600 nm, preferably 540 to 580 nm may be used.
- anthraquinone-based dyes may be used.
- the polythiol-based compound is included in an amount of about 40 to 60% by weight
- the isocyanate-based compound is about 40 to 60% by weight
- the above-described additive is included in an amount of about 0.01 to 1% by weight of the total weight of the optical composition can
- a polythiourethane resin may be produced through a polymerization reaction of the polythiol-based compound and XDI included in the optical composition.
- the XDI composition used in the optical composition may be adjusted to satisfy Equation 1 to appropriately control the reactivity or reaction rate with the polythiol-based compound. Accordingly, while suppressing the clouding phenomenon derived from the XDI composition itself, the clouding phenomenon in the optical lens prepared from the optical composition can be prevented together.
- an optical lens having a uniform refractive index without streaking through a stable polymerization reaction may be manufactured.
- reaction rate of the optical composition included in Equation 1 to be described later may be adjusted to 0.15 to 0.23, preferably 0.18 to 0.23, more preferably 0.20 to 0.23, or 0.21 to 0.23. can be maintained as
- an optical product manufactured through the above-described optical composition may be provided.
- the optical composition after degassing the optical composition under reduced pressure, it may be injected into a mold for molding an optical material. Mold injection may be performed, for example, in a temperature range of 20 to 40°C.
- the temperature may be gradually increased to proceed with the polymerization reaction of the polythiourethane resin.
- the polymerization temperature may be 20 to 150 °C, preferably 25 to 130 °C.
- the polymerization temperature may be 20 °C to 150 °C, preferably 25 °C to 130 °C.
- the maximum polymerization temperature may be 100°C to 150°C, preferably 110°C to 140°C, more preferably 115°C to 130°C.
- the temperature increase rate may be 1°C/min to 10°C/min, preferably 3°C/min to 8°C/min, and more preferably 4°C/min to 7°C/min.
- the polymerization time may be from 10 hours to 20 hours, preferably from 15 hours to 20 hours.
- the polymerized polythiourethane resin may be separated from the mold to obtain an optical product.
- a curing process may be further performed.
- the curing process is in the range of 100°C to 150°C, preferably 110°C to 140°C, more preferably 115°C to 130°C, about 1 hour to 10 hours, preferably 2 hours to 8 hours, more preferably may be performed for 2 to 6 hours.
- the optical product may be manufactured in the form of a spectacle lens, a camera lens, a light emitting diode, etc. according to a mold shape.
- the refractive index of the optical product may be adjusted according to the type and/or content ratio of the polythiol-based compound and the isocyanate-based compound used in the polymerizable composition.
- the refractive index of the optical product may be adjusted in the range of 1.56 to 1.78, 1.58 to 1.76, 1.60 to 1.78, or 1.60 to 1.76, preferably in the range of 1.65 to 1.75 or 1.69 to 1.75.
- the optical product may be improved by adding surface treatment such as anti-fouling, color imparting, hard coat, surface polishing, hardness strengthening, and the like.
- the temperature inside the reactor was cooled to a range of 10 to 20° C., and after stirring for 1 hour, 1320.0 g of tetrahydrofuran was added. The reaction was allowed to proceed with further stirring for 1 hour by cooling the reactor internal temperature to a range of -5 to 0 °C again.
- N 2 gas was supplied to the reaction solution at a temperature of 125° C. and bubbled, followed by a degassing process. After the degassing reaction solution was cooled to 10° C., the remaining solid was filtered using Celite 545.
- the filtered organic solvent and the synthesized crude XDI were purified by distillation under the following conditions. In the second distillation process, 2,000 ppm of imidazole was added.
- the resin composition filtered through a 3 ⁇ m Teflon filter was injected into a mold including a glass mold and a tape. After maintaining the mold at 10 to 25° C. for 8 hours, the temperature was slowly raised to 130° C. for 8 hours at a constant rate, and polymerization was performed at 130° C. for 2 hours. After the polymerization was completed, the mold was separated and further cured at 120° C. for 2 hours to prepare a lens sample.
- An XDI composition and a lens sample were prepared in the same manner as in Example 1, except that the distillation column bottom temperature and the imidazole addition amount in the second distillation process were changed as described in Table 1 below.
- the XDI composition prepared as described above was analyzed by gas chromatography (GC) under the following conditions to measure the number of moles of chloromethylbenzyl isocyanate, and the content of CBI was measured by converting it.
- GC gas chromatography
- composition stock solution was visually observed and evaluated as follows.
- a lens sample having a diameter of 75 mm, - 4.00D was prepared using the polymerizable composition according to Examples and Comparative Examples, and a mercury lamp light source was transmitted through the prepared lens sample, and the transmitted light was projected on a white plate.
- the presence or absence of stria was judged by the presence or absence of contrast.
- the evaluation criteria are as follows.
- the evaluation criteria are as follows.
- the standard viscosity (Standard cps) was first confirmed with a viscosity standard solution (Brookfield, 1000 cps, 25 o C). Thereafter, the viscosity was measured at 10° C. for 24 hours for the optical compositions according to Examples and Comparative Examples.
- the X-axis is time
- the Y-axis is viscosity
- the Y-axis is logarithmic to formulate it as in Equation 1 below, and then the reaction rate was derived.
- Equation 1 a value represents the initial viscosity, and the b value represents the reaction rate, and was rounded to the third decimal place of the measured value.
- Plastic circumference (r (radius) x H (height) 16mm x 45mm) for the lens samples of Examples and Comparative Examples prepared in the form of UV / VIS Spectroscopy (PerkinElmer, Model UV / VIS Lambda 365) using plastic Y.I was measured by transmitting light in the height direction of the circumference.
- Y.I was calculated by the following formula (1) based on the values of x and y.
- Equation 1 in the examples in which the value of Equation 1 was adjusted in the range of 400 to 750 as described above, cloudiness in the composition and lens state was prevented, and an appropriate polymerization reaction rate was obtained.
- Comparative Examples 4 and 5 in which the value of Formula 1 is less than 400, composition cloudiness and lens streaks were observed due to excessive reactivity.
- Comparative Examples 1 to 3 when the value of Equation 1 exceeds 750, a yellowing phenomenon of the lens was caused.
- Comparative Examples 6 to 9 as the value of Equation 1 exceeded 1,000, the lens cloudiness was caused. In addition, as the polymerization reaction rate was excessively decreased, the yield of the lens sample decreased.
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
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- General Physics & Mathematics (AREA)
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- Polyurethanes Or Polyureas (AREA)
Abstract
Description
| 제2 증류 온도(℃) | 이미다졸 투입량 (ppm) |
CBI (ppm) |
XDI 조성물 산도 (ppm) |
식 1 값 | |
| 실시예 1 | 120 | 2000 | 781 | 242 | 622 |
| 실시예 2 | 120 | 500 | 810 | 267 | 670 |
| 실시예 3 | 120 | 10000 | 724 | 124 | 439 |
| 실시예 4 | 110 | 2000 | 699 | 144 | 453 |
| 실시예 5 | 110 | 500 | 701 | 229 | 577 |
| 실시예 6 | 110 | 10000 | 687 | 115 | 413 |
| 실시예 7 | 135 | 500 | 825 | 308 | 741 |
| 실시예 8 | 135 | 10000 | 831 | 239 | 633 |
| 비교예 1 | 140 | 2000 | 1238 | 225 | 765 |
| 비교예 2 | 145 | 2000 | 1511 | 204 | 859 |
| 비교예 3 | 160 | 2000 | 1690 | 218 | 951 |
| 비교예 4 | 120 | 12000 | 787 | 24 | 396 |
| 비교예 5 | 120 | 15000 | 777 | 6 | 389 |
| 비교예 6 | 120 | 300 | 855 | 612 | 1297 |
| 비교예 7 | 120 | 0 | 859 | 668 | 1403 |
| 비교예 8 | 100 | 2000 | 535 | 1021 | 2059 |
| 비교예 9 | 80 | 2000 | 455 | 1211 | 2433 |
| 조성물 백탁 |
렌즈 물성 | ||||
| 맥리 | 백탁 | 반응성 중합속도 |
Y.I | ||
| 실시예 1 | ○ | ○ | ○ | 0.21 | 21 |
| 실시예 2 | ○ | ○ | ○ | 0.22 | 22 |
| 실시예 3 | ○ | ○ | ○ | 0.23 | 21 |
| 실시예 4 | ○ | ○ | ○ | 0.23 | 20 |
| 실시예 5 | ○ | ○ | ○ | 0.22 | 20 |
| 실시예 6 | ○ | ○ | ○ | 0.23 | 20 |
| 실시예 7 | ○ | ○ | ○ | 0.21 | 23 |
| 실시예 8 | ○ | ○ | ○ | 0.22 | 23 |
| 비교예 1 | △ | ○ | ○ | 0.24 | 25 |
| 비교예 2 | △ | ○ | ○ | 0.26 | 26 |
| 비교예 3 | △ | ○ | ○ | 0.27 | 26 |
| 비교예 4 | × | × | ○ | 0.30 | 23 |
| 비교예 5 | × | × | ○ | 0.31 | 22 |
| 비교예 6 | ○ | ○ | △ | 0.14 | 26 |
| 비교예 7 | ○ | ○ | △ | 0.14 | 26 |
| 비교예 8 | ○ | ○ | × | 0.12 | 27 |
| 비교예 9 | ○ | ○ | × | 0.12 | 27 |
Claims (10)
- 청구항 1에 있어서, 조성물 총 중량 중 클로로메틸벤질 이소시아네이트의 함량은 600 ppm 내지 1,000 ppm인, 자일릴렌 디이소시아네이트 조성물.
- 청구항 1에 있어서, 산도 조절제를 더 포함하는, 자일릴렌 디이소시아네이트 조성물.
- 청구항 1에 있어서, 100 ppm 내지 350 ppm 범위의 산도를 갖는, 자일릴렌 디이소시아네이트 조성물.
- 청구항 5에 있어서, 이형제, 반응 촉매, 열 안정제, 자외선 흡수제 및 블루잉(blueing) 제로 구성된 그룹으로부터 선택된 적어도 하나를 포함하는 첨가제를 더 포함하는, 광학 조성물.
- 자일릴렌디아민으로부터 자일릴렌디이소시아네이트(XDI)를 합성하여 자일릴렌디이소시아네이트를 포함하는 예비 조성물을 형성하는 단계; 및110 내지 135℃의 온도에서 증류 공정을 통해 상기 예비 조성물 내 클로로메틸벤질 이소시아네이트(CBI)의 함량 및 산도를 조절하는 단계를 포함하는, 자일릴렌 디이소시아네이트 조성물의 제조 방법.
- 청구항 8에 있어서, 상기 예비 조성물 내 산도를 조절하는 것은 상기 증류 공정시 200 ppm 내지 1,000 ppm 범위의 이미다졸을 투입하는 것을 포함하는, 자일릴렌 디이소시아네이트 조성물의 제조 방법.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21900959.4A EP4257626A4 (en) | 2020-12-03 | 2021-11-30 | XYLYLENE DIISOCYANATE COMPOSITION AND OPTICAL COMPOSITION THEREOF |
| CN202180081127.9A CN116547335A (zh) | 2020-12-03 | 2021-11-30 | 苯二亚甲基二异氰酸酯组合物和包括其的光学组合物 |
| GB2308243.1A GB2615968B (en) | 2020-12-03 | 2021-11-30 | Xylylene diisocyanate composition and optical composition comprising same |
| US18/254,172 US20240026063A1 (en) | 2020-12-03 | 2021-11-30 | Xylylene diisocyanate composition and optical composition comprising same |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020200167728A KR102578617B1 (ko) | 2020-12-03 | 2020-12-03 | 자일릴렌디이소시아네이트 조성물 및 이를 포함하는 중합성 조성물 |
| KR10-2020-0167728 | 2020-12-03 |
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| WO2022119271A1 true WO2022119271A1 (ko) | 2022-06-09 |
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Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20240026063A1 (ko) |
| EP (1) | EP4257626A4 (ko) |
| KR (1) | KR102578617B1 (ko) |
| CN (1) | CN116547335A (ko) |
| GB (1) | GB2615968B (ko) |
| WO (1) | WO2022119271A1 (ko) |
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| WO2024106985A1 (ko) * | 2022-11-16 | 2024-05-23 | 한화솔루션 주식회사 | 자일렌 디이소시아네이트 조성물 및 이의 제조방법 |
| WO2025135762A1 (ko) * | 2023-12-20 | 2025-06-26 | 한화솔루션 주식회사 | 신규한 화합물, 이를 포함하는 이소시아네이트 조성물, 및 상기 이소시아네이트 조성물을 포함하는 중합성 조성물 |
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| CN109748822A (zh) * | 2017-11-08 | 2019-05-14 | 万华化学(宁波)有限公司 | 一种制备异氰酸酯单体的方法和系统 |
| KR20190129819A (ko) * | 2017-04-10 | 2019-11-20 | 미쓰이 가가쿠 가부시키가이샤 | 자일릴렌 다이아이소사이아네이트 조성물, 자일릴렌 다이아이소사이아네이트 변성체 조성물, 이액형 수지 원료 및 수지 |
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| HUE060897T2 (hu) * | 2015-09-30 | 2023-04-28 | Covestro Intellectual Property Gmbh & Co Kg | Eljárás izocianátok elõállítására |
| FR3049950B1 (fr) * | 2016-04-07 | 2020-09-25 | Vencorex France | Procede de preparation des xylylene diisocyanates xdi |
| JP6373536B1 (ja) * | 2017-04-10 | 2018-08-15 | 三井化学株式会社 | キシリレンジイソシアネート組成物、キシリレンジイソシアネート変性体組成物、二液型樹脂原料および樹脂 |
| JP7307440B2 (ja) * | 2019-12-06 | 2023-07-12 | エスケイシー・カンパニー・リミテッド | 光学レンズ用ジイソシアネート組成物およびその調製方法 |
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2020
- 2020-12-03 KR KR1020200167728A patent/KR102578617B1/ko active Active
-
2021
- 2021-11-30 GB GB2308243.1A patent/GB2615968B/en active Active
- 2021-11-30 WO PCT/KR2021/017850 patent/WO2022119271A1/ko not_active Ceased
- 2021-11-30 EP EP21900959.4A patent/EP4257626A4/en active Pending
- 2021-11-30 US US18/254,172 patent/US20240026063A1/en active Pending
- 2021-11-30 CN CN202180081127.9A patent/CN116547335A/zh active Pending
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| KR20120076329A (ko) | 2010-12-29 | 2012-07-09 | 주식회사 케이오씨솔루션 | 우레탄계 광학재료용 수지의 제조방법과 이를 위한 수지 조성물 및 제조된 광학재료 |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP4257626A1 (en) | 2023-10-11 |
| EP4257626A4 (en) | 2025-05-21 |
| GB2615968B (en) | 2024-11-27 |
| US20240026063A1 (en) | 2024-01-25 |
| CN116547335A (zh) | 2023-08-04 |
| KR20220078316A (ko) | 2022-06-10 |
| GB202308243D0 (en) | 2023-07-19 |
| KR102578617B1 (ko) | 2023-09-13 |
| GB2615968A (en) | 2023-08-23 |
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