WO2022211135A1 - 水素結合部位含有耐油性化合物 - Google Patents
水素結合部位含有耐油性化合物 Download PDFInfo
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- WO2022211135A1 WO2022211135A1 PCT/JP2022/017655 JP2022017655W WO2022211135A1 WO 2022211135 A1 WO2022211135 A1 WO 2022211135A1 JP 2022017655 W JP2022017655 W JP 2022017655W WO 2022211135 A1 WO2022211135 A1 WO 2022211135A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and 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 a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/12—Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and 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 a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and 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 a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/10—Esters
- C08F20/12—Esters of monohydric alcohols or phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
- C08F220/343—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate in the form of urethane links
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
- C08F220/36—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate containing oxygen in addition to the carboxy oxygen, e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions 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; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of 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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
- C09D5/1662—Synthetic film-forming substance
- C09D5/1668—Vinyl-type polymers
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
Definitions
- the present disclosure relates to a hydrogen-bonding site-containing oil-resistant compound and an oil-resistant agent comprising the hydrogen-bonding site-containing oil-resistant compound.
- a compound (polymer) having a hydrocarbon group that imparts oil resistance is sometimes used as an active ingredient in fluorine-free paper oil resistance agents. Since the hydrocarbon group exerts oil resistance utilizing the crystallinity of the long-chain alkyl moiety, its heat resistance is thought to depend mainly on the melting temperature of the crystal of the long-chain alkyl moiety of the compound. , it is difficult to maintain oil resistance above the temperature at which the crystal of the long-chain alkyl moiety melts.
- Patent Document 1 (WO2020/054856) describes (a) a repeating unit formed from an acrylic monomer having a long-chain hydrocarbon group having 7 to 40 carbon atoms, and (b) an acrylic monomer having a hydrophilic group. Disclosed is an oil-resistant agent for paper comprising a non-fluorocopolymer having repeating units formed from a polymer.
- Patent Document 2 (WO2019/026593) describes (a) a polymer having repeating units derived from an amide group-containing monomer of a specific chemical formula in an amount of 2 to 100% by weight of the polymer, and (b) Discloses a water repellent composition comprising a liquid medium.
- Patent Document 4 Japanese Patent Application Laid-Open No. 2018-506657 discloses at least one ( Disclosed is a method of treating a textile substrate for water repellency comprising one or more polymeric compounds derived from the polymerization of meth)acrylate monomers.
- Patent Document 5 Japanese Patent Application Laid-Open No. 2011-074117 discloses (A) —O— or —NH— and an acrylic compound containing an alkyl group, (B) a (meth)acrylate compound having an aliphatic cyclic structure, and (C) a radical polymerization initiator.
- An object of the present disclosure is to provide a compound or an oil-resistant agent that can impart excellent oil resistance and, if necessary, water resistance to paper, and that the oil resistance does not depend solely on the crystallinity of the long-chain alkyl group. be.
- the intensity of the peak at 2 ⁇ of 5° or less is 0.7 times or more the intensity of the peak at 15 to 25°;
- the intensity of the peak at 2 ⁇ of 5° or less is 0.7 times or more the intensity of the peak at 15 to 25°;
- the measurement temperature of 25° C. the half width of the peak at 2 ⁇ from 15 to 25° is 2.0° or more;
- at a measurement temperature of 25° C. to 70° C. the peak top value at 2 ⁇ of 5° or less does not change;
- the intensity of the peak at 2 ⁇ of 5° or less is maintained, and in differential scanning calorimetry (DSC) measurement, (vi) the half width of the melting peak at 0°C to 120°C is 4.5°C or more; and/or a non-fluorine compound that does not dissolve in corn oil at a measurement temperature of 25°C and/or a contact angle of 30° or more with hexadecane (HD) at a measurement temperature of 25°C.
- DSC differential scanning calorimetry
- This disclosure is (i) a contact angle of hexadecane (HD) of 30° or more at 70°C; (ii) When attached to insoluble paper in 120 ° C. corn oil, (iii) Oil resistance thin paper test at 70 ° C. for 3 minutes or more, (iv) high temperature oil resistance thin paper test of 80°C or higher, and (v) less than 50% oil stain in the paper plate test using oil at 65°C.
- a fluorine-free oil-resistant compound (oil-resistant compound) having a melting point of 30° C. or higher and/or a glass transition temperature of 0° C. or higher and/or a crystallization temperature of 30° C. or higher, satisfying at least one of
- the present disclosure provides compounds as described above having a linear hydrocarbon group and a hydrogen bonding site. Additionally, the present disclosure provides an oil resistant agent comprising the above compounds.
- An oil-resistant compound is an active ingredient that imparts oil resistance in an oil-resistant agent and an oil-resistant agent composition.
- Aspect 1 In the X-ray diffraction (XRD) measurement, (i) At a measurement temperature of 25°C, the intensity of the peak at 2 ⁇ of 5° or less is 0.7 times or more the intensity of the peak at 15 to 25°. (ii) at a measurement temperature of 80° C., the intensity of the peak at 2 ⁇ of 5° or less is 0.7 times or more the intensity of the peak at 15 to 25°; (iii) at a measurement temperature of 25° C., the half width of the peak at 2 ⁇ from 15 to 25° is 2.0° or more; (iv) at a measurement temperature of 25° C.
- XRD X-ray diffraction
- the peak top value at 2 ⁇ of 5° or less does not change;
- the intensity of the peak at 2 ⁇ of 5° or less is maintained, and in differential scanning calorimetry (DSC) measurement,
- the half width of the melting peak at 0°C to 120°C is 4.5°C or more; and/or a non-fluorine compound that does not dissolve in corn oil at a measurement temperature of 25°C and/or a contact angle of 30° or more with hexadecane (HD) at a measurement temperature of 25°C.
- DSC differential scanning calorimetry
- Aspect 2 (i) a contact angle of hexadecane (HD) of 30° or more at 70°C; (ii) insoluble in corn oil at 120°C; When applied to paper, (iii) Oil resistance thin paper test at 70 ° C. is 3 minutes or more, (iv) a high temperature oil resistance thin paper test of 80° C. or higher; and (v) a paper plate test with oil at 65° C. of less than 50% oil stain.
- a non-fluorine compound having a melting point of 30° C. or higher and/or a glass transition temperature of 0° C. or higher and/or a crystallization temperature of 30° C. or higher, which satisfies at least one of .
- Aspect 3 3. The non-fluorine compound according to aspect 1 or 2, wherein the non-fluorine compound has a linear hydrocarbon group or a branched or cyclic hydrocarbon group and a hydrogen bonding site.
- Aspect 4 The non-fluorine compound according to aspect 3, wherein the non-fluorine compound is an acrylic compound.
- Aspect 5 An oil resistant agent comprising the non-fluorine compound according to any one of aspects 1 to 4.
- the non-fluorine compound is a non-fluorine polymer
- R 11 is a linear, branched or cyclic hydrocarbon group having 3 to 22 carbon atoms
- R 12 is a hydrogen atom, a monovalent organic group or a halogen atom excluding a fluorine atom
- Y is -O- or -NR'- (R' is H or a hydrocarbon group having 1 to 4 carbon atoms)
- X 11 is a direct bond, a hydrocarbon group having 1 to 20 carbon atoms (which may contain a hydrocarbon moiety having a substituent), —(CH 2 CH 2 O) r
- R 21 and R 31 are each independently a reactive group or a hydrophilic group
- R 22 and R 32 are a hydrogen atom, a monovalent organic group, or a halogen atom excluding a fluorine atom
- Y 21 is a direct bond, -O-, or -NR'- (R' is H or a hydrocarbon group having 1 to 4 carbon atoms)
- R 23 is a group having a direct bond or a divalent to tetravalent hydrocarbon group having 1 to 10 carbon atoms (which may contain a hydrocarbon moiety having a substituent)
- Y 31 is a benzene ring
- H is a hydrogen atom
- a non-fluoropolymer has the formula: or [In the formula, R 51 and R 61 are each independently a direct bond, a hydrocarbon group having 1 to 20 carbon atoms (which may contain a hydrocarbon moiety having a substituent), -(CH 2 CH 2 O) r At least one selected from - (r is an integer of 1 to 10), -C6H4- , -O-, or -NR'- (R' is H or a hydrocarbon group having 1 to 4 carbon atoms)
- R 52 and R 62 are each independently a hydrogen atom, a monovalent organic group, or a halogen atom excluding a fluorine atom;
- Y 51 is -O- or -NR'- (R' is H or a hydrocarbon group having 1 to 4 carbon atoms), p is 2 to 4, q is 1-5.
- Aspect 9 The oil resistant agent according to any one of aspects 5 to 8, which comprises a cross-linking agent.
- Aspect 10 An oil resistant agent composition comprising the oil resistant agent according to any one of aspects 5 to 9 and a liquid medium which is water or a mixture of water and an organic solvent.
- Aspect 11 11.
- Aspect 12 12.
- the oil resistant agent composition according to aspect 10 or 11 which is an oil resistant agent composition for paper.
- Aspect 13 A method for treating greaseproof paper, comprising applying the non-fluorine compound, oilproof agent or oilproof agent composition according to any one of aspects 1 to 12 to paper.
- Aspect 14 Greaseproof paper to which the non-fluorine compound according to any one of aspects 1 to 12 is adhered.
- a compound or an oil-resistant agent can be obtained that can impart excellent oil resistance and, if necessary, water resistance to paper, and whose oil resistance does not depend only on the crystallinity of the long-chain alkyl group.
- FIG. 1 is an X-ray diffraction pattern at various measurement temperatures of the polymer obtained in Synthesis Example 1.
- FIG. 2 is an enlarged X-ray diffraction diagram of the polymer obtained in Synthesis Example 1 at (a) a measurement temperature of 25° C. and (b) a measurement temperature of 80° C.
- FIG. FIG. 10 is an X-ray diffraction pattern at various measurement temperatures of the polymer obtained in Synthesis Example 18.
- FIG. 1 shows a chart of differential scanning calorimetry (DSC) measurement of the polymer obtained in Synthesis Example 1.
- DSC differential scanning calorimetry
- the oil resistant agent or oil resistant composition comprises (A) a non-fluorine oil resistant compound (oil resistant compound).
- the oil resistant compound is an active ingredient that exhibits oil resistance.
- the oil resistant agent or oil resistant composition preferably also contains (B) a liquid medium which is water and/or an organic solvent, preferably water or a mixture of water and an organic solvent (aqueous medium).
- the present disclosure provides greaseproof paper treated with an oilproof agent (oilproof agent for paper) or an oilproof agent composition (oilproof agent composition for paper).
- Paper processing can be external or internal.
- the oil-resistant paper has an oil-resistant layer containing an oil-resistant compound by a method of externally adding an oil-resistant agent for paper.
- the oil-resistant paper contains an oil-resistant compound inside the paper by a method of internally adding an oil-resistant agent for paper.
- (A) non-fluorine oil-resistant compound (oil-resistant compound) In X-ray diffraction (XRD) measurement of oil-resistant compounds, (i) at a measurement temperature of 25°C, the intensity of the peak at 2 ⁇ of 5° or less is 0.7 times or more the intensity of the peak at 15 to 25°; (ii) at a measurement temperature of 80° C., the intensity of the peak at 2 ⁇ of 5° or less is 0.7 times or more the intensity of the peak at 15 to 25°; (iii) at a measurement temperature of 25° C., the half width of the peak at 2 ⁇ from 15 to 25° is 2.0° or more; (iv) at a measurement temperature of 25° C.
- XRD X-ray diffraction
- the peak top value at 2 ⁇ of 5° or less does not change; It is preferable to satisfy at least one of (v) that the intensity of the peak at 2 ⁇ of 5° or less is maintained at a measurement temperature of 25°C to 80°C.
- XRD measurement is generally performed near room temperature of 25°C, but it is possible to perform XRD measurement at a predetermined temperature using a temperature-variable XRD device such as XRD-DSC measurement.
- peaks with 2 ⁇ of 5° or less are derived from a phase separation structure such as a lamellar structure, and this structure is important for developing oil resistance.
- a peak at 2 ⁇ of 15 to 25° originates from packing (crystallinity) of long-chain alkyl groups. Packing of long-chain alkyl groups contributes to the improvement of liquid repellency, so this peak may be present. It is preferred to have peaks at both ⁇ 25°. When the melting point is 100° C. or higher in DSC measurement, it may not have a peak with 2 ⁇ of 5° or lower. From the viewpoint of developing oil resistance at high temperatures, the peak at 2 ⁇ of 5° or less or from 15 to 25° is preferably the maximum intensity peak in XRD.
- the intensity of the peak at 2 ⁇ of 5 ° or less is 0.7 times the intensity of the peak at 15 to 25 ° more preferably 0.8 times or more or 1.0 times or more, for example, 5 times or more or 10 times or more (the upper limit may be 1000 times or 500 times).
- the half width of the peak at 2 ⁇ from 15 to 25° is preferably 2.0° or more, 2.5° or more, 3.0° or more, or 3.5° or more. The larger the half width of the peak at 2 ⁇ from 15° to 25°, the lower or no crystallinity of the long-chain alkyl group.
- the half-value width means the width of the peak at half the height from the peak top of the peak of the peak of the chart obtained as the measurement result in the XRD measurement or the DSC measurement. Alternatively, it means the width of the valley at half the height (depth) from the peak top of the valley peak.
- the peak top value at 2 ⁇ of 5 ° or less preferably does not change between the measurement temperature of 25 ° C. and 60 ° C., further 25 ° C. to 70 ° C., It preferably does not change from 25°C to 80°C, from 25°C to 90°C or from 25°C to 100°C, more preferably from 25°C to 130°C.
- That the value of the peak top does not change means that the difference in the 2 ⁇ values of the peak top is less than 0.2°. From the viewpoint of developing oil resistance at high temperatures, it is preferable that the peak top value does not change even at high temperatures.
- the intensity of the peak at 2 ⁇ of 5 ° or less is preferably maintained between 25 ° C. and 60 ° C., and further 25 ° C. to 70 ° C. °C to 80 °C, 25 °C to 90 °C, or 25 °C to 100 °C, more preferably 25 °C to 130 °C.
- the expression that the peak intensity is maintained means that the peak intensity at a predetermined measurement temperature is 50% or more when the peak intensity at 25° C. is 100%.
- the peak intensity is preferably as high as possible, preferably 70% or more or 90% or more. From the viewpoint of developing oil resistance at high temperatures, it is preferable that the peak intensity does not decrease even at high temperatures.
- a peak with 2 ⁇ of 5° or less and a peak with 2 ⁇ of 15 to 25° mean that the peak top value is within the range of 2 ⁇ (5° or less, or 15 to 25°).
- the half width of the melting peak at a melting point of 0°C to 120°C is 4.5°C or more; is preferably The half width of the melting peak at 0°C to 120°C is preferably 4.5°C or higher, 5.0°C or higher, 5.5°C or higher, or 6.0°C or higher.
- the half width of the melting peak at 0°C to 120°C means the half width of the melting peak with the largest amount of heat when there are multiple melting points at 0°C to 120°C.
- a larger half width of the melting peak means lower or no crystallinity.
- the higher the melting point the more preferably 30° C. or higher, 40° C.
- Oil-resistant compounds are (i) a contact angle of hexadecane (HD) of 30° or more at 70°C; (ii) When attached to insoluble paper in 120 ° C. corn oil, (iii) Oil resistance thin paper test at 70 ° C. for 3 minutes or more, (iv) high temperature oil resistance thin paper test of 80°C or higher, and (v) less than 50% oil stain in the paper plate test using oil at 65°C. It is preferable to satisfy at least one of
- the oil-resistant compound preferably has a hexadecane (HD) contact angle of 30° or more, preferably 35° or more, 38° or more, 39° or more or 40° or more at a measurement temperature of 70°C.
- the oil-resistant compound preferably has a hexadecane (HD) contact angle of 30° or more, preferably 35° or more, 38° or more, 39° or more or 40° or more at a measurement temperature of 25°C. This contact angle develops on paper, silicon substrate, PET substrate, glass substrate, and cloth.
- the oil-resistant compound has a contact angle of hexadecane of 15° or more, preferably 20° or more, 30° or more, or 35° or more at a predetermined measurement temperature when the contact angle of hexadecane is measured by increasing the temperature from 25°C. It is preferably 40° or more. Oil-resistant compounds are preferred because they exhibit higher contact angles at higher temperatures, meaning they are more oil-resistant at high temperatures.
- a solution of the oil-resistant compound having a solid content concentration of 1.0% solvent is a good solvent for the oil-resistant compound such as chloroform or methanol) is spin-coated on the silicon wafer substrate, and the static contact angle can be measured.
- the static contact angle can be measured by dropping 2 ⁇ L of hexadecane onto the coating film and measuring the contact angle one second after the drop is applied using a fully automatic contact angle meter (DropMaster 701 manufactured by Kyowa Interface Science). Static contact angle measurement (temperature-variable contact angle measurement) at a predetermined temperature is performed after 2 ⁇ L of hexadecane is dropped, the temperature of the silicon wafer substrate is set to a predetermined temperature, and the contact angle after 1 minute is measured as a fully automatic contact angle. (DropMaster 701 manufactured by Kyowa Interface Science Co., Ltd.).
- the oil-resistant compound preferably does not dissolve in corn oil at 25°C.
- Not soluble in corn oil, or "insoluble” means that 0.01 g of the oil resistant compound does not completely dissolve in 1.00 g of corn oil at 25° C. (i.e., it does not dissolve partially or wholly).
- High-temperature oil resistance can also be evaluated based on whether or not the compound dissolves when mixed with corn oil at 120°C.
- “Insoluble” in corn oil at 120°C means that 0.01 g of the oil-resistant compound does not dissolve completely in 1.00 g of corn oil at 120°C (i.e., does not dissolve partially or wholly). means. If it is insoluble in corn oil at 120°C, it means that it has oil resistance to corn oil at 120°C.
- the oil-resistant compound preferably has oil resistance of 1 minute or more, preferably 2 minutes or more, 3 minutes or more, 5 minutes or more, or 7 minutes or more in the oil resistance thin paper test at 70° C. when applied to paper.
- oil resistance thin paper test at 70°C 70°C corn oil is placed on the surface of the treated paper, and the time taken for the corn oil to permeate is measured when the paper is held in an oven at 70°C. The higher the time (minutes) of the 70°C oil resistance thin paper test, the higher the oil resistance at 70°C.
- the oil-resistant compound When the oil-resistant compound is adhered to paper, it is preferably 80° C. or higher, preferably 90° C. or higher, 95° C. or higher, 100° C. or higher, or 105° C. or higher in the high temperature oil resistance thin paper test.
- the high-temperature oil resistance thin paper test corn oil at a predetermined temperature is placed on the surface of the treated paper, and the surface is held in an oven at a predetermined temperature for 1 minute. The maximum temperature at which corn oil does not penetrate is taken as the evaluation result. The higher the temperature in the high-temperature oil resistance thin paper test, the higher the high-temperature oil resistance.
- the oil resistant compound exhibits less than 50% oil stain in the paper plate test with oil at 65°C.
- 100 ml of the evaluation liquid (corn oil) at 65 ° C. is poured into a pulp mold product containing an oil-resistant compound molded into a container, left to stand for 5 minutes, the evaluation liquid is discarded, and the pulp mold product Visually evaluate the degree of staining of the evaluation liquid on the (container) according to the following criteria.
- Oil stain on the outside of the bottom of the pulp mold container is less than 50% of the bottom area of the container
- Oil stain on the outside of the bottom of the pulp mold container is 50% or more of the bottom area of the container
- the oil resistant compound is 70°C, more preferably 75°C, 80°C It is preferred to have less than 50% oil stain in the Paper Plate Test with 100°F oil.
- the evaluation liquid (corn oil) is poured and left to stand for 5 minutes, or after standing for 10 minutes, preferably 20 minutes, 30 minutes, 40 minutes, and 45 minutes, the evaluation liquid is discarded, and the pulp mold is Regarding the degree of staining of the evaluation liquid on the product (container), the oil stain on the outside of the bottom of the pulp mold container is preferably less than 50% of the bottom area of the container, less than 40%, less than 30%, preferably less than 20%, less than 10%, Less than 5% is more preferred.
- the oil-resistant compound preferably has a melting point of 30°C or higher and/or a glass transition temperature of 0°C or higher and/or a crystallization temperature of 30°C or higher.
- the melting point and crystallization temperature of the oil-resistant compound are preferably higher, and more preferably 30° C. or higher, 40° C. or higher, 50° C. or higher, 70° C. or higher, 80° C. or higher, and 90° C. or higher.
- the temperature is 150° C. or higher.
- the oil-resistant compound has a glass transition temperature, it is preferably 0°C or higher, preferably 10°C or higher, 15°C or higher, 20°C or higher, and 30°C or higher.
- the glass transition temperature may be 0°C or lower.
- Melting point, glass transition temperature, and crystallization temperature values can be obtained by differential scanning calorimetry (DSC) measurements.
- the glass transition temperature can be obtained as the temperature indicated by the midpoint of the intersection of the extended line of each base line before and after the secondary transition of the DSC curve obtained by DSC measurement and the tangent line at the inflection point of the DSC curve. .
- the oil-resistant compound is preferably a non-fluorine compound having a linear (or branched or cyclic) hydrocarbon group and a hydrogen bonding site.
- the linear (or branched or cyclic) hydrocarbon group preferably has 3 to 22 carbon atoms, preferably 3 to 20 carbon atoms, 3 to 18, 3 to 16, 3 to 14, 4 to 22, 4-20, 4-18, 4-16, 4-14, 6-22, 6-20, 6-18, 6-16, 6-14, or 8-18, 8-16, 8-14 is more preferable.
- a hydrogen bond site is a functional group capable of forming a hydrogen bond and can be represented by -Z-.
- the chain of the hydrocarbon group becomes longer, crystallinity between the hydrocarbon groups develops.
- a hydrogen-bonding site promotes crystallization as the hydrogen-bonding property becomes stronger.
- the length of the hydrocarbon group that maximizes (or decreases) the melting point of the compound varies depending on the type of hydrogen-bonding site combined.
- the crystallinity of the hydrocarbon groups is high, high water repellency is exhibited, but the melting point of the crystals can also be the limit of the heat resistance of oil resistance. must be selected.
- the oil-resistant compound may be a compound having a linear (or branched or cyclic) hydrocarbon group and several hydrogen bonding sites (eg, 2-8, 2-5 or 2-3).
- the linear (or branched or cyclic) hydrocarbon group and the hydrogen bonding site are the sites that exhibit oil resistance, so the structure of the other portion of the compound may be any structure.
- the oil-resistant compound may have a repeating unit formed from a monomer containing a linear (or branched or cyclic) hydrocarbon group and a hydrogen bonding site, or may be a polymer composed of the repeating unit. good.
- the oil-resistant compound has a repeating unit formed from a linear (or branched or cyclic) hydrocarbon group and an acrylic monomer containing a hydrogen bonding site, or is a polymer composed of the repeating unit. good.
- the oil-resistant compound is preferably an acrylic compound having a linear (or branched or cyclic) hydrocarbon group and a hydrogen bonding site from the viewpoint of simplicity of synthesis.
- the oil-resistant compound is an oil-resistant polymer.
- the oil-resistant compound may be a compound with a low molecular weight (weight average molecular weight, eg, 100-1000), but may be a polymer with a high molecular weight (weight average molecular weight, eg, 500-10 million).
- the polymer is a polymer (oligomer) formed from 2 to 10 (for example, 2 to 5) monomers or a polymer (polymer) formed from 5 or 10 or more monomers. It's okay.
- the term "polymer” includes not only polymers but also oligomers.
- the oil resistant compound is (1) It is an oil-resistant polymer having repeating units formed from acrylic monomers having linear (or branched or cyclic) hydrocarbon groups and hydrogen bonding sites. "Oil-resistant polymers” are also referred to herein simply as "polymers.”
- the oil-resistant polymer further comprises (2) It may have repeating units formed from acrylic monomers having reactive and/or hydrophilic groups.
- the oil-resistant polymer in addition to the monomers (1) and (2), (3) It may have a repeating unit formed from a monomer having a crosslinkable group.
- the oil-resistant polymer (4) It may have repeating units formed from other monomers.
- the oil-resistant polymer is preferably a non-fluorinated oil-resistant polymer.
- the hydrocarbon group/hydrogen bonding site-containing acrylic monomer (or "hydrocarbon group-containing monomer”) is a linear chain having 3 to 22 carbon atoms. (or branched or cyclic) hydrocarbon groups and hydrogen bonding sites.
- Linear (or branched or cyclic) hydrocarbon groups are preferably aliphatic hydrocarbon groups, especially saturated aliphatic hydrocarbon groups, especially alkyl groups.
- the carbon number of the hydrocarbon group is 3-22.
- the lower limit may be 3, 4, 5, 6, 7, 8, 9, 10 or 11 and the upper limit is 22, 21. , 20, 19, 18, 17, 16, 15, 14, 13, 12.
- the linear hydrocarbon group preferably has 3 to 22 carbon atoms, preferably 3 to 20 carbon atoms, 3 to 18, 3 to 16, 3 to 14, 4 to 22, 4 to 20, 4 It is preferably ⁇ 18, 4-16, 4-14, preferably 6-22, 6-20, 6-18, 6-16, 6-14, or 8-18, 8-16, 8-14 .
- the branched hydrocarbon group preferably has 3 to 22 carbon atoms, preferably 3 to 20 carbon atoms, 3 to 18, 3 to 16, 3 to 14, 4 to 22, 4 to 20, 4 to It is preferably 18, 4-16, 4-14, preferably 6-22, 6-20, 6-18, 6-16, 6-14, or 8-18, 8-16, 8-14.
- the cyclic hydrocarbon group preferably has 3 to 22 carbon atoms, preferably 3 to 20 carbon atoms, , 4-16, 4-14, preferably 6-22, 6-20, 6-18, 6-16, 6-14, or 8-18, 8-16, 8-14.
- a straight-chain hydrocarbon group is most preferable because of its excellent oil resistance.
- the hydrocarbon group/hydrogen bonding site-containing acrylic monomer is preferably a non-fluorine monomer.
- R 11 is a linear, branched or cyclic hydrocarbon group having 3 to 22 carbon atoms
- R 12 is a hydrogen atom, a monovalent organic group or a halogen atom excluding a fluorine atom
- Y is -O- or -NR'- (R' is H or a hydrocarbon group having 1 to 4 carbon atoms)
- X 11 is a direct bond, a hydrocarbon group having 1 to 20 carbon atoms (which may contain a hydrocarbon moiety having a substituent), —(CH 2 CH 2 O) r — (r is an integer of 1 to
- R 11 is a linear, branched or cyclic hydrocarbon group having 3 to 22 carbon atoms.
- R 11 is preferably an aliphatic hydrocarbon group, especially a saturated aliphatic hydrocarbon group, especially an alkyl group.
- the linear hydrocarbon group preferably has 3 to 22 carbon atoms, preferably 3 to 20 carbon atoms, 3 to 18, 3 to 16, 3 to 14, 4 to 22, 4 to 20, 4 is preferably ⁇ 18, 4-16, 4-14, preferably 6-22, 6-20, 6-18, 6-16, 6-14, or 8-18, 8-16, 8-14 .
- the branched hydrocarbon group preferably has 3 to 22 carbon atoms, preferably 3 to 20 carbon atoms, 3 to 18, 3 to 16, 3 to 14, 4 to 22, 4 to 20, 4 to It is preferably 18, 4-16, 4-14, preferably 6-22, 6-20, 6-18, 6-16, 6-14, or 8-18, 8-16, 8-14.
- the cyclic hydrocarbon group preferably has 3 to 22 carbon atoms, preferably 3 to 20 carbon atoms, , 4-16, 4-14, preferably 6-22, 6-20, 6-18, 6-16, 6-14, or 8-18, 8-16, 8-14. From the viewpoint of developing oil resistance, it is preferably a straight-chain hydrocarbon group.
- R 12 may be a hydrogen atom, a methyl group, a halogen atom excluding a fluorine atom, a substituted or unsubstituted benzyl group, or a substituted or unsubstituted phenyl group.
- a hydrogen atom or a methyl group is preferable, and a hydrogen atom is preferable from the viewpoint of developing oil resistance.
- Y is preferably -O- or -NH-.
- X 11 is a direct bond, a hydrocarbon group having 1 to 20 carbon atoms (which may contain a hydrocarbon moiety having a substituent), —(CH 2 CH 2 O) r — (r is an integer of 1 to 10), a divalent to tetravalent group composed of at least one selected from -C6H4- , -O-, or -NR'- (R' is H or a hydrocarbon group having 1 to 4 carbon atoms); and may have a linear structure or a branched structure.
- X 11 preferably has 2 to 8 carbon atoms, 2 to 4 carbon atoms, particularly 2 carbon atoms.
- X 11 is preferably not a direct bond.
- Preferred examples of X 12 are a direct bond and -(CH 2 CH 2 O) r - (r is an integer of 1 to 10), preferably a direct bond.
- a hydrocarbon group/hydrogen bonding site-containing acrylic monomer can be produced by reacting a hydroxyalkyl (meth)acrylate or a hydroxyalkyl (meth)acrylamide with an alkyl isocyanate.
- alkyl isocyanates include lauryl isocyanate, myristyl isocyanate, cetyl isocyanate, stearyl isocyanate, oleyl isocyanate, behenyl isocyanate, propyl isocyanate, hexyl isocyanate, octyl isocyanate and decyl isocyanate.
- the hydrocarbon group/hydrogen bonding site-containing acrylic monomer can also be produced by reacting a (meth)acrylate having an isocyanate group in the side chain, such as 2-methacryloyloxyethyl methacrylate, with alkylamine or alkyl alcohol.
- alkylamines include laurylamine, myristylamine, cetylamine, stearylamine, oleylamine, behenylamine, propylamine, hexylamine, octylamine and decylamine.
- alkyl alcohols examples include lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol, propyl alcohol, hexyl alcohol, octyl alcohol and decyl alcohol.
- the hydrocarbon group/hydrogen bonding site-containing acrylic monomer can be produced by reacting (meth)acrylic acid chloride and alkylamidoethyl alcohol.
- alkylamidoethyl alcohol examples include laurylamideethyl alcohol, myristylamideethyl alcohol, cetylamideethyl alcohol, stearylamideethyl alcohol, oleylamideethyl alcohol, behenylamideethyl alcohol, propylamideethyl alcohol, hexylamideethyl alcohol, octylamide Ethyl alcohol, decylamidoethyl alcohol, etc.
- Reactive/hydrophilic monomers have one ethylenically unsaturated double bond and at least one reactive and/or hydrophilic group.
- reactive groups are epoxy groups (eg glycidyl groups), chloromethyl groups, bromomethyl groups, iodomethyl groups, blocked isocyanate groups.
- hydrophilic groups include hydroxyl group, amino group, oxyalkylene group (alkylene group has 2 to 6 carbon atoms), carboxylic acid group, sulfonic acid group, phosphoric acid group, and alkalis of carboxylic acid, sulfonic acid and phosphoric acid. Tertiary or quaternary amino groups and salts thereof (e.g., acetate).
- the two or three groups bonded to the nitrogen atom are the same or different, aliphatic groups having 1 to 5 carbon atoms (especially alkyl groups), aromatic groups having 6 to 20 carbon atoms, A group (aryl group) or an araliphatic group having 7 to 25 carbon atoms (especially an alkyl group such as a benzyl group ( C6H5 - CH2- )) is preferred.
- one group attached to the nitrogen atom may have a carbon-carbon double bond.
- An amino group that is a salt is a salt with an acid (organic or inorganic).
- Organic acids such as carboxylic acids having 1 to 20 carbon atoms (especially monocarboxylic acids such as acetic acid, propionic acid, butyric acid and stearic acid) are preferred.
- the reactive/hydrophilic monomer is a non-fluorinated monomer.
- R 21 and R 31 are monovalent groups. Examples of reactive groups or hydrophilic groups for R 21 and R 31 are as described above.
- R22 and R32 may be a hydrogen atom, a methyl group, a halogen atom other than a fluorine atom, a substituted or unsubstituted benzyl group, or a substituted or unsubstituted phenyl group.
- R 22 and R 32 are hydrogen, methyl, chlorine, bromine, iodine, cyano.
- R22 and R32 are preferably a hydrogen atom, a methyl group or a chlorine atom. From the viewpoint of developing oil resistance, R 22 is more preferably a hydrogen atom.
- Y 21 is preferably -O- or -NH-.
- R 23 is preferably a divalent to tetravalent hydrocarbon group having 1 to 10 carbon atoms (which may contain a hydrocarbon moiety having a substituent).
- R 23 is a divalent alkylene group, such as —(CH 2 ) r — (r is a number of 1 to 5), or a divalent, trivalent, or tetravalent alkyl group, such as —(CH 2 ) r- (CH-) s- (r is a number from 1 to 5 and s is 1, 2 or 3.
- the positions of the CH2 and CH- groups do not have to be in the stated order. ) is preferred.
- Y 31 is a benzene ring.
- the monomer with Y31 has a styryl group.
- 1 to 3 R 31 groups and 2 to 4 hydrogen atoms are attached to the benzene ring.
- R 21 may be a group containing an oxyalkylene group (the alkylene group has 2 to 6 carbon atoms).
- X 41 is preferably a hydrogen atom or a methyl group.
- n may be, for example, 1-50, especially 1-30, especially 1-15 or 2-15.
- R may be a linear or branched alkylene group, for example of the formula -(CH2CH2) x- , - ( CH2 - CH( CH3 )) x- , or -(CH( CH3 ) -CH2 ) x- [wherein x is 1 to 3, for example 1 to 2].
- R may be two or more types, and -(RO) n - is, for example, -(R 1 O) n1 - and -(R 2 O) n2 - [wherein R 1 and R 2 are different from each other and each is an alkylene group having 2 to 6 carbon atoms, n1 and n2 are numbers of 1 or more, and the total of n1 and n2 is 2 to 90. ] may be a combination.
- reactive/hydrophilic monomers include glycidyl (meth)acrylate, glycerol (meth)acrylate, hydroxymethyl (meth)acrylate, hydroxyethyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 2 - hydroxypropyl (meth)acrylate, 2,3-dihydroxypropyl (meth)acrylate, 3-chloro-2-hydroxypropyl (meth)acrylate, 3-hydroxybutyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, 2-acetoacetoxyethyl (meth)acrylate, 4-hydroxybutyl acrylate glycidyl ether, acrylic acid, methacrylic acid, trimethylsilyl (meth)acrylate, 2-(trimethylsilyloxy)ethyl (meth)acrylate , 2-(dimethylamino)ethyl (meth)acrylate, 2-(tert)
- CH2 C( CH3 )COO - CH2CH2 - N ( CH2CH3 )( CH2C6H5 ) and salts thereof (e.g. acetate)
- hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxybutyl acrylate, hydroxyethyl acrylamide, or dimethylaminoethyl methacrylate and salts thereof (eg, acetate) are preferred.
- Cross-linking monomer is a compound having at least two (especially two, three or four) ethylenically unsaturated double bonds.
- the crosslinkable monomer is preferably a non-fluorine monomer.
- the crosslinkable monomer has the formula: or [In the formula, R 51 and R 61 are each independently a direct bond, a hydrocarbon group having 1 to 20 carbon atoms (which may contain a hydrocarbon moiety having a substituent), -(CH 2 CH 2 O) r At least one selected from - (r is an integer of 1 to 10), -C6H4- , -O-, or -NR'- (R' is H or a hydrocarbon group having 1 to 4 carbon atoms)
- R 52 and R 62 are each independently a hydrogen atom, a monovalent organic group, or a halogen atom excluding a fluorine atom;
- Y 51 is -O- or -NR'- (R' is H or a hydrocarbon group having 1 to 4 carbon atoms), p is 2 to 4, q is 1-5.
- R 51 and R 61 are each independently a direct bond, a hydrocarbon group having 1 to 20 carbon atoms (which may contain a hydrocarbon
- R 51 and R 61 are a direct bond, a divalent to tetravalent (e.g., divalent to trivalent) carbon number which may be interrupted by an oxygen atom and/or a hydrogen atom may be substituted by a substituent.
- 1 to 20 or 2 to 10 hydrocarbon groups, ethylene glycol group, propylene glycol group, glycerol group, cyclohexyl group, dicyclopentanyl group, adamantyl group, isobornyl group, naphthalene group, bornyl group, tricyclodecanyl and a phenyl group or a group containing any of these groups.
- R51 and R61 may be a polyethylene glycol group having 2 to 10 repeating units.
- R 52 and R 62 may each independently be a hydrogen atom, a methyl group, a halogen atom excluding a fluorine atom, a substituted or unsubstituted benzyl group, or a substituted or unsubstituted phenyl group.
- R 52 and R 62 are hydrogen, methyl, chlorine, bromine, iodine, cyano.
- R52 and R62 are preferably a hydrogen atom, a methyl group, or a chlorine atom. From the viewpoint of oil resistance, R52 and R62 are more preferably hydrogen atoms.
- Y51 is preferably -O- or -NH-.
- crosslinkable monomers include divinylbenzene, 1,4-butanediol di(meth)acrylate, 1,6-hexanediol di(meth)acrylate, 1,9-nonanediol di(meth)acrylate, neo Pentyl glycol di(meth)acrylate, polyethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, ethylene glycol di(meth)acrylate, methylene glycol di(meth)acrylate, polytetramethylene glycol cold di(meth)acrylate, dimethyloltricyclodecane di(meth)acrylate, trimethylolpropane tri(meth)acrylate, adamantyl di(meth)acrylate, glycerin di(meth)acrylate, tricyclodecanedimethanol di(meth) acrylate, dicyclopentanyl di(meth)acrylate, 5-hydroxy-1,3-a
- monomers examples include, for example, ethylene, vinyl acetate, acrylonitrile, vinyl chloride, styrene, polyethylene glycol (meth)acrylate, polypropylene glycol (meth)acrylate, methoxypolyethyleneglycol (meth)acrylate, methoxypolypropylene glycol ( Included are meth)acrylates, methyl (meth)acrylates and vinyl alkyl ethers.
- Other monomers are preferably non-fluorine monomers. Other monomers are not limited to these examples.
- (meth)acrylate means acrylate or methacrylate
- (meth)acrylamide means acrylamide or methacrylamide
- acrylic compound means a compound having an acryloyl group. and generally means an acrylate, methacrylate, acrylamide, or methacrylamide compound.
- Each of the monomers (1) to (4) may be singular or a mixture of two or more.
- the amounts of monomers (1) to (3) relative to the polymer may be as follows. Monomer (1): 40 mol% or more, 50 mol% or more, 60 mol% or more, 70 mol% or more, or 80 mol% or more (the lower limit is 10 mol%, 20 mol%, 30 mol%, 40 mol% , 50 mol %, 60 mol %, the upper limit being 99 mol %, 95 mol %, 90 mol %, 85 mol %, 80 mol %, 75 mol %, 70 mol % or 65 mol %.
- Monomer (2) 0 to 50 mol%, 2 to 40 mol% or 2 to 30 mol% (the lower limit is 1 mol, 2 mol%, 3 mol%, 5 mol%, 8 mol%, 10 mol% , 12 mol % or 15 mol %, the upper limit being 50 mol %, 45 mol %, 40 mol %, 35 mol %, 30 mol %, 25 mol %, 20 mol % or 15 mol %.
- Monomer (3) 0 to 30 mol%, 0 to 20 mol% or 1 to 10 mol% (the lower limit is 1 mol, 2 mol%, 3 mol%, 5 mol%, 8 mol%, 10 mol% , 12 mol % or 15 mol %, the upper limit being 40 mol %, 35 mol %, 30 mol %, 25 mol %, 20 mol %, 15 mol %, 10 mol % or 5 mol %. good.)
- Monomer (1) contributes to the development of oil resistance, and monomer (2) improves adhesion to substrates such as paper and cloth, dispersibility in solvents such as water, and, in some cases, oil resistance.
- the monomer (3) contributes to the improvement of oil resistance and heat resistance. Therefore, the monomer composition is selected in consideration of the necessary performance balance.
- the amount of the other monomer (4) may be 0-20% by weight, for example 0.1-15% by weight or 1-10% by weight, relative to the oil-resistant polymer.
- the weight average molecular weight of the oil-resistant polymer may be 1,000 to 1,000,000, preferably 5,000 to 800,000, and more preferably 30,000 to 800,000.
- the weight average molecular weight is a value obtained by gel permeation chromatography in terms of polystyrene.
- Polymerization of the oil-resistant polymer is not particularly limited, and various polymerization methods such as bulk polymerization, solution polymerization, emulsion polymerization and radiation polymerization can be selected.
- solution polymerization using an organic solvent and emulsion polymerization using water or an organic solvent and water are generally selected.
- a treatment liquid is prepared by diluting with water after polymerization and emulsifying in water. After polymerization (eg, solution polymerization, emulsion polymerization, or solution polymerization), water may be added and the solvent removed to disperse the polymer in water.
- Self-dispersing products can be produced without the need to add emulsifiers (dispersants).
- organic solvents examples include ketones such as acetone and methyl ethyl ketone, esters such as ethyl acetate and methyl acetate, propylene glycol, dipropylene glycol monomethyl ether, N-methyl-2-pyrrolidone (NMP), dipropylene glycol, and tripropylene glycol. , low molecular weight polyethylene glycol and other glycols, ethyl alcohol, isopropanol and other alcohols, toluene, 1,3-dioxane and 1,4-dioxane.
- polymerization initiators for example, peroxides, azo compounds or persulfate-based compounds can be used.
- Polymerization initiators are generally water- and/or oil-soluble.
- oil-soluble polymerization initiators include 2,2′-azobis(2-methylpropionitrile), 2,2′-azobis(2-methylbutyronitrile), 2,2′-azobis(2, 4-dimethylvaleronitrile), 2,2′-azobis(2,4-dimethyl-4-methoxyvaleronitrile), 1,1′-azobis(cyclohexane-1-carbonitrile), dimethyl 2,2′-azobis(2 -methyl propionate), 2,2′-azobis(2-isobutyronitrile), benzoyl peroxide, di-tertiary-butyl peroxide, lauryl peroxide, cumene hydroperoxide, t-butylperoxy Pivalate, diisopropyl peroxydicarbonate, t-butyl perpivalate and
- water-soluble polymerization initiator examples include 2,2′-azobisisobutylamidine dihydrochloride, 2,2′-azobis(2-methylpropionamidine) hydrochloride, 2,2′-azobis[ 2-(2-imidazolin-2-yl)propane]hydrochloride, 2,2′-azobis[2-(2-imidazolin-2-yl)propane]sulfate hydrate, 2,2′-azobis[2- (5-Methyl-2-imidazolin-2-yl)propane]hydrochloride, potassium persulfate, barium persulfate, ammonium persulfate, hydrogen peroxide and the like are preferred.
- the polymerization initiator is used in the range of 0.01 to 5 mol parts per 100 mol parts of the monomer.
- a chain transfer agent such as a mercapto group-containing compound may also be used for the purpose of molecular weight control, and specific examples thereof include 2-mercaptoethanol, thiopropionic acid, and alkyl mercaptan.
- the mercapto group-containing compound is used in the range of 10 mol parts or less and 0.01 to 5 mol parts per 100 mol parts of the monomer.
- the oil-resistant polymer can be produced as follows.
- Solution polymerization employs a method in which a monomer is dissolved in an organic solvent, nitrogen is substituted, a polymerization initiator is added, and the mixture is heated and stirred at, for example, 40 to 120° C. for 1 to 10 hours.
- Polymerization initiators are generally preferred to be oil-soluble polymerization initiators.
- organic solvents include those that are inert to the monomers and dissolve them, and include ketones such as acetone and methyl ethyl ketone, esters such as ethyl acetate and methyl acetate, propylene glycol, dipropylene glycol monomethyl ether, N-methyl -2-pyrrolidone (NMP), dipropylene glycol, tripropylene glycol, glycols such as low molecular weight polyethylene glycol, alcohols such as ethyl alcohol and isopropanol, n-heptane, n-hexane, n-octane, cyclohexane, methyl Hydrocarbon solvents such as cyclohexane, cyclopentane, methylcyclopentane, methylpentane, 2-ethylpentane, isoparaffinic hydrocarbons, liquid paraffin, decane, undecane, dodecane, mineral spirits, mineral turpentine,
- solvents include acetone, chloroform, isopropyl alcohol, pentane, hexane, heptane, octane, cyclohexane, benzene, toluene, xylene, petroleum ether, tetrahydrofuran, 1,4-dioxane, methyl ethyl ketone, methyl isobutyl ketone, and ethyl acetate.
- the organic solvent has a monomer concentration in the solution represented by (monomer)/(organic solvent + monomer) in the range of 3 to 80% by weight, 5 to 70% by weight, and 10 to 60% by weight. used in
- Emulsion polymerization employs a method in which monomers are emulsified in water in the presence of an emulsifier or the like, and after purging with nitrogen, a polymerization initiator is added and polymerized by stirring at 40 to 80°C for 1 to 10 hours. be done.
- the polymerization initiator is a water-soluble polymerization initiator such as 2,2′-azobisisobutylamidine dihydrochloride, 2,2′-azobis(2-methylpropionamidine) hydrochloride, 2,2′-azobis[ 2-(2-imidazolin-2-yl)propane]hydrochloride, 2,2′-azobis[2-(2-imidazolin-2-yl)propane]sulfate hydrate, 4,4′-azobis(4- cyanovaleric acid), 2,2′-azobis[2-(5-methyl-2-imidazolin-2-yl)propane]hydrochloride, potassium persulfate, barium persulfate, ammonium persulfate, hydrogen peroxide, and oil-soluble polymerization initiators such as 2,2′-azobis(2-methylpropionitrile), 2,2′-azobis(2-methylbutyronitrile), 2,2′-azobis(2,4- dimethylvaleronitrile), 2,
- an emulsifying device that can impart strong crushing energy, such as a high-pressure homogenizer or an ultrasonic homogenizer, is used to make fine particles of the monomers in water and to obtain an oil-soluble polymer. It is desirable to polymerize using a polymerization initiator.
- Various anionic, cationic or nonionic emulsifiers can be used as the emulsifier, and the amount used is in the range of 0.5 to 20 parts by weight per 100 parts by weight of the monomer. Preference is given to using anionic and/or nonionic and/or cationic emulsifiers.
- a compatibilizing agent such as a water-soluble organic solvent or a low-molecular-weight monomer to make these monomers sufficiently compatible. Addition of a compatibilizer can improve emulsifiability and copolymerizability.
- Water-soluble organic solvents include acetone, propylene glycol, dipropylene glycol monomethyl ether (DPM), dipropylene glycol, tripropylene glycol, ethanol, N-methyl-2-pyrrolidone (NMP), 3-methoxy-3-methyl- Examples include 1-butanol and isoprene glycol, which may be used in an amount of 1 to 50 parts by weight, for example 2 to 40 parts by weight, per 100 parts by weight of water.
- NMP or DPM or 3-methoxy-3-methyl-1-butanol, tripropylene glycol or isoprene glycol improves the stability of the composition (particularly the emulsion).
- Examples of low-molecular-weight monomers include methyl methacrylate and glycidyl methacrylate, which are used in an amount of 1 to 50 parts by weight, for example 2 to 40 parts by weight, per 100 parts by weight of the total amount of monomers. good.
- the anti-oil agent is preferably in the form of a solution, emulsion or aerosol.
- An oil resistant agent comprises an oil resistant compound and a medium (eg, an organic solvent and a liquid medium such as water).
- the oil resistant agent is preferably an aqueous dispersion of an oil resistant compound.
- the concentration of the oil resistant compound may be, for example, 0.01 to 50% by weight.
- the oil resistant agent preferably does not contain an emulsifier, but may contain an emulsifier.
- the organic solvent in the oil-resistant compound solution can be removed by heating the oil-resistant compound solution (preferably under reduced pressure) (for example, to 30°C or higher, for example, 50 to 120°C).
- the oil resistant agent may contain a cross-linking agent.
- the cross-linking agent is preferably one that cross-links when the base material is treated with the aqueous dispersion of the oil-resistant compound and then heated. Also, the cross-linking agent itself is preferably dispersed in water.
- a preferred example of a cross-linking agent is a blocked isocyanate compound.
- the blocked isocyanate compound is [A (NCO) m (wherein A is a group remaining after the isocyanate group is removed from the polyisocyanate, and m is an integer of 2 to 8.)] isocyanate [RH (formula wherein R may be a hydrocarbon group optionally substituted by a heteroatom such as a nitrogen atom or an oxygen atom, and H may be a hydrogen atom]. can do.
- A(NCO) m is, for example, tolylene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI), or the like.
- blocking agents that form R groups are oximes, phenols, alcohols, mercaptans, amides, imides, imidazoles, ureas, amines, imines, pyrazoles and active methylene compounds.
- cross-linking agent blocked isocyanates such as oxime-blocked toluene diisocyanate, blocked hexamethylene diisocyanate and blocked diphenylmethane diisocyanate are preferred.
- the amount of cross-linking agent may be 0-30 parts by weight or 0.01-20 parts by weight, for example 0.1-18 parts by weight, based on 100 parts by weight of the oil-resistant compound.
- the amount of the cross-linking agent is such that the ratio of the --NCO groups of the cross-linking agent is 0.1 to 3.0 equivalents, 0.1 to 1.0 equivalents, relative to the --OH groups, epoxy groups, and amino groups of the oil-resistant compound. It is preferably used in the range of 5 equivalents, 0.1 to 1.0 equivalents.
- Greaseproofing agents can be used to treat (eg, surface treat) paper substrates and fabrics.
- the oil resistant agent can be applied to the object to be treated by a conventionally known method.
- the oil-resistant agent is dispersed in an organic solvent or water to dilute it, and is applied to the surface of the object to be treated by a known method such as dip coating, spray coating, foam coating, etc., followed by drying. surface treatment).
- Examples of the paper base material of the object to be treated include paper, containers made of paper, molded bodies made of paper (for example, pulp molds), and the like.
- cloth substrates to be treated include animal and plant natural fibers such as cotton, hemp, wool and silk; synthetic fibers such as polyamide, polyester, polyvinyl alcohol, polyacrylonitrile, polyvinyl chloride and polypropylene; rayon and acetate. semi-synthetic fibers, glass fibers, inorganic fibers such as carbon fibers, or mixed fibers thereof.
- Fabric products include woven, knitted and non-woven fabrics, cloth in the form of clothing and carpets, but for pre-cloth fibers, yarns, intermediate textiles (e.g. sliver or roving, etc.):
- the oil-resistant compounds of the present disclosure which may be treated, adhere well to paper substrates.
- Paper can be manufactured by a conventionally known papermaking method.
- An internal addition treatment method of adding an oil resistance agent to a pulp slurry before paper making or an external addition treatment method of applying an oil resistance agent to paper after paper making can be used.
- the size press of the external addition treatment method can also be classified as follows according to the coating method.
- the coating liquid size liquid
- the coating liquid is supplied to the nip portion formed by passing the paper between two rubber rolls to form a coating liquid reservoir called a pond, and the paper is passed through this coating liquid reservoir on both sides of the paper.
- This is a so-called pound-type two-roll size press that applies a size liquid to the surface.
- Other application methods include a gate roll type in which a size liquid is applied by a surface transfer type, and a rod metering size press.
- the sizing liquid easily penetrates into the inside of the paper, and in the surface transfer type, the sizing liquid component tends to stay on the surface of the paper.
- the surface transfer type tends to retain the coating layer on the surface of the paper, and the oil-resistant layer formed on the surface is larger than that of the pound-type two-roll size press.
- oil resistance can be imparted to paper even when the former pound-type two-roll size press is used.
- the papers thus treated can, after brief drying at room temperature or elevated temperature, optionally temperature ranges up to 300° C., for example up to 200° C., especially from 80° C. to 180° C., depending on the nature of the paper. Accompanied by heat treatment, it exhibits excellent oil and water resistance.
- the present disclosure can be used in gypsum board base paper, coated base paper, medium quality paper, general liner and core, neutral pure white roll paper, neutral liner, anticorrosion liner and metal interleaving paper, kraft paper, and the like. It can also be used in neutral printing and writing paper, neutral coated base paper, neutral PPC paper, neutral heat-sensitive paper, neutral pressure-sensitive base paper, neutral inkjet paper and neutral information paper.
- Pulp raw materials include bleached or unbleached chemical pulp such as kraft pulp or sulfite pulp, high-yield bleached or unbleached pulp such as groundwood pulp, mechanical pulp or thermomechanical pulp, waste newspaper, waste magazine paper, waste corrugated board, or bleached pulp. Any waste paper pulp such as ink waste paper can be used. Mixtures of the above pulp raw materials and synthetic fibers such as asbestos, polyamide, polyimide, polyester, polyolefin and polyvinyl alcohol can also be used.
- sizing agents By adding a sizing agent to the pulp raw material, the water resistance of the paper can be improved.
- sizing agents are cationic sizing agents, anionic sizing agents, rosin-based sizing agents (eg, acidic rosin-based sizing agents, neutral rosin-based sizing agents).
- the amount of sizing agent may be from 0.01 to 5% by weight relative to the pulp.
- conventional paper-making agents such as starch, modified starch, carboxymethyl cellulose, polyamide polyamine-epichlorohydrin resin, and other paper strength agents, coagulants, fixing agents, yield improvers, and dyes are added.
- fluorescent dyes, slime control agents, defoamers, and other additives used in paper manufacturing can be used.
- Starches and modified starches are preferably used.
- the oil-resistant agent can be applied to the paper using starch, polyvinyl alcohol, dye, coating color, anti-skid agent, etc., by a size press, gate roll coater, bill blade coater, calender, or the like.
- the amount of the oil-resistant compound contained in the oil-resistant layer is preferably 0.01 to 2.0 g/m 2 , particularly 0.1 to 1.0 g/m 2 .
- the oil-resistant layer preferably contains an oil-resistant agent and starch and/or modified starch.
- the solid content of the oil resistant agent in the oil resistant layer is preferably 2 g/m 2 or less.
- the amount of the oil resistant agent is 0.01 to 50 parts by weight, or 0.01 to 30 parts by weight, for example, 0.01 to 10 parts by weight, per 100 parts by weight of the pulp forming the paper. , it is preferred to mix the anti-oil agent with the pulp.
- the weight ratio of the starch or modified starch to the oil-resistant compound may be 10:90 to 98:2.
- the processing liquid is stored between the rolls, and the base paper is passed through the processing liquid between the rolls at an arbitrary roll speed and nip pressure. can be given.
- the oil-resistant compound may be nonionic, cationic, anionic or amphoteric.
- the paper substrate may contain additives such as sizing agents, paper strength agents, flocculants, retention agents or coagulants.
- Additives may be nonionic, cationic, anionic or amphoteric.
- the ionic charge density of the additive may be -10000 to 10000 ⁇ eq/g, preferably -4000 to 8000 ⁇ eq/g, more preferably -1000 to 7000 ⁇ eq/g.
- Additives (solid content or active ingredient) such as sizing agents, paper strength agents, flocculants, retention agents, or coagulants are generally 0.1 to 10% by weight (for example, 0.2 to 10% by weight) of the pulp. 5.0% by weight).
- the oil resistance agent is preferably anionic.
- pulp slurry having a pulp concentration of 0.5 to 5.0% by weight (for example, 2.5 to 4.0% by weight).
- Additives such as sizing agents, strength agents, flocculants, retention agents or coagulants
- oil resistant compounds can be added to the pulp slurry. Since pulp is generally anionic, it is preferred that at least one of the additive and the oil-resistant compound is cationic or amphoteric so that the additive and the oil-resistant compound will adhere well to the paper.
- a combination wherein the additive is cationic or amphoteric and the oil-resistant compound is anionic a combination wherein the additive is anionic and the oil-resistant compound is cationic or amphoteric, an additive and the oil-resistant compound are cationic or It is preferred to use combinations that are amphoteric. It is more preferable to make paper with an ionic charge density of -1000 to 7000 ⁇ eq/g of additives constituting a sizing agent, a paper strength agent, a coagulant, a retention agent, or a coagulant, and the ionic charge density is 100 to 1000 ⁇ eq/g. (eg, 330 ⁇ eq/g, 420 ⁇ eq/g or 680 ⁇ eq/g).
- additives examples include alkylketene dimers, alkenyl succinic anhydrides, styrenic polymers (styrene/maleic polymers, styrene /acrylic acid-based polymer), urea-formaldehyde polymer, polyethyleneimine, melamine-formaldehyde polymer, polyamidoamine-epichlorohydrin polymer, polyacrylamide-based polymer, polyamine-based polymer, polydiallyldimethylammonium chloride, alkylamine- epichlorohydrin condensates, alkylene dichloride and polyalkylene polyamine condensates, dicyandiamide/formalin condensates, dimethyldiallylammonium chloride polymers, and olefin/maleic anhydride polymers.
- alkylketene dimers alkenyl succinic anhydrides
- styrenic polymers styrene/maleic polymers,
- the article to be treated is treated with an oil resistant agent.
- “Treatment” means applying an oil resistant agent to an object to be treated by immersion, spraying, coating, or the like. Due to the treatment, the oil-resistant compound, which is the active ingredient of the oil-resistant agent, permeates into the material to be treated and/or adheres to the surface of the material to be treated.
- thermophysical properties by differential scanning calorimetry The melting point, crystallization temperature, and glass transition temperature of the oil-resistant compound were calculated by differential scanning calorimetry (DSC). DSC measurement was performed in a nitrogen atmosphere, after cooling to -20°C, heating up to 200°C at 10°C/min, cooling to -20°C again, and then observing during the process of heating up to 200°C at 10°C/min. The melting point was measured. For polymers with multiple melting peaks, the peak with the largest heat of fusion was taken as the melting point. The half-value width of the peak was defined as the temperature width of the melting point peak between the base line and the half height of the peak top.
- Pulp slurry in which the weight ratio of LBKP (broadleaf bleached kraft pulp) and NBKP (softwood bleached kraft pulp) is 60% by weight and 40% by weight as wood pulp, and the pulp freeness is 400 ml (Canadian Standard Freeness). is added to this pulp slurry, and a fourdrinier paper machine is used to externally add paper with a paper density of 0.58 g / cm and a basis weight of 45 g / m (size press treatment). was used as the base paper for This base paper had an oil resistance (KIT value) of 0 and a water resistance (Cobb value) of 52 g/m ⁇ 2>.
- KIT value oil resistance
- Cobb value water resistance
- a 14.9 mg/cm3 oil-resistant compound solution (chloroform or methanol solvent) was applied to this base paper using a baker applicator with a gap of 0 mil, followed by drying.
- a treated paper was prepared by annealing for a minute.
- High temperature oil resistance thin paper test Corn oil at a predetermined temperature was placed on the surface of the treated paper, and the paper was kept in an oven at a predetermined temperature for 1 minute. The highest temperature at which no stain was observed was taken as the evaluation result of high-temperature oil resistance. The measurement was performed in 10° C. increments.
- Paper plate test water resistance (practical water test 1)] Pour 100ml of water at 100°C into a container-shaped pulp mold product, leave it for 45 minutes, discard the evaluation liquid, and visually observe the degree of staining of the evaluation liquid on the pulp mold product (container) according to the following criteria. evaluated with ⁇ : No water stains on the outside of the bottom of the pulp mold container ⁇ : Water stains on the outside of the bottom of the pulp mold container
- ⁇ Synthesis Examples 2 to 18> Except that the monomers shown in Table 1 were added in the composition ratio shown in Table 1 with respect to 1 molar equivalent of azobisisobutyronitrile, and that acetone was used for reprecipitation in Synthesis Examples 13 and 14. A polymer was obtained in the same manner as in Synthesis Example 1.
- Table 1 shows the melting points, melting point half widths obtained from DSC measurements of Synthesis Examples 1 to 18 and Comparative Synthesis Example 1, and peak ratios obtained from XRD measurements (measurement temperature 25 ° C. and 80 ° C.), peak half width, peak top change, peak top intensity change.
- FIG. 1 shows X-ray diffraction patterns of the polymer obtained in Synthesis Example 1 at various measurement temperatures.
- FIG. 2 shows enlarged X-ray diffraction patterns of the polymer obtained in Synthesis Example 1 at (a) a measurement temperature of 25° C. and (b) a measurement temperature of 80° C.
- FIG. FIG. 3 shows X-ray diffraction patterns of the polymer obtained in Synthesis Example 18 at various measurement temperatures. Numerical values in legends in the drawings indicate temperatures (° C.) at the time of measurement on the XRD chart.
- FIG. 4 shows a chart of differential scanning calorimetry (DSC) measurement of the polymer obtained in Synthesis Example 1. As shown in FIG.
- Examples 1 to 18> Using the compounds shown in Table 2, measurement samples were prepared using silicon substrates, and static contact angle measurements and high-temperature contact angle measurements were performed. Also, treated paper was prepared and subjected to KIT test, corn oil resistance evaluation, 70° C. oil resistance thin paper test, and high temperature oil resistance thin paper test. Furthermore, a 120°C corn oil dissolution test was conducted. Table 2 shows the results. In Synthesis Examples 6 to 11, the 25° C. corn oil dissolution test was all ⁇ (insoluble). In Examples 13 and 14, methanol was used as a solvent when preparing the silicon substrate sample and the treated paper. Others used chloroform as a solvent.
- Example 19 Treated paper in the same manner as in Example 1 except that Synthesis Example 3 and 1,3,5-tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione were used was created and evaluated. 1,3,5-tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione is added to the -NCO group in an amount of 1.0 equivalent to the -OH group of the compound of Synthesis Example 3. was added so that Table 2 shows the results.
- Example 20> The amount of 1,3,5-tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione used was 3.0 equivalents relative to the -OH group of the compound of Synthesis Example 3.
- the procedure was the same as in Synthesis Example 19, except that it was added so as to form an —NCO group.
- Table 2 shows the results.
- ⁇ Comparative Example 1> Evaluation was performed in the same manner as in Examples 1 to 18, except that Comparative Synthesis Example 1 was used. Table 2 shows the results.
- Example 21 [Creating a paper plate] To a freeness of 550 cc (Canadian freeness), 2000 g of a 0.5% by weight aqueous dispersion of a mixture of 70 parts of beaten bleached hardwood kraft pulp and 30 parts of bleached softwood kraft pulp is added with stirring, followed by oil resistance. 10 g of an aqueous dispersion of the compound (Synthesis Example 5) diluted with water to a solid content of 10% was added, and stirring was continued for 1 minute.
- the above pulp slurry was placed in a metal tank. At the bottom of the tank, there was a metal pulp molding die provided with a large number of suction holes, with a net-like body placed thereon.
- the pulp-containing aqueous composition is sucked and dewatered through the pulp mold and the mesh by a vacuum pump from the opposite side of the pulp molding mold to the side where the mesh is arranged, and is contained in the pulp-containing aqueous composition.
- a pulp mold intermediate was obtained by depositing solids (such as pulp) on the mesh. Next, the obtained pulp mold intermediate was dried by applying pressure from above and below with a metal male/female mold heated to 60 to 200°C. As a result, a molded pulp product was produced in the shape of a container.
- Paper plate evaluation (Practical oil test 1) was performed using the paper plate, which is a pulp molded product, and the result was "Good".
- ⁇ Example 22> [Creating a paper plate] To a freeness of 550 cc (Canadian Freeness), 2000 g of a 0.5% by weight aqueous dispersion of a mixture of 70 parts of beaten bleached hardwood kraft pulp and 30 parts of bleached softwood kraft pulp is added with stirring, followed by synthesis. 3 g of the aqueous dispersion of Example 19 were added and stirring was continued for 1 minute.
- the above pulp slurry was placed in a metal tank. At the bottom of the tank, there was a metal pulp molding die provided with a large number of suction holes, with a net-like body placed thereon.
- the pulp-containing aqueous composition is sucked and dewatered through the pulp mold and the mesh by a vacuum pump from the opposite side of the pulp molding mold to the side where the mesh is arranged, and is contained in the pulp-containing aqueous composition.
- a pulp mold intermediate was obtained by depositing solids (such as pulp) on the mesh. Next, the obtained pulp mold intermediate was dried by applying pressure from above and below with a metal male/female mold heated to 60 to 200°C. As a result, a molded pulp product was produced in the shape of a container.
- Paper plate evaluation (Practical oil test 1) was performed using the paper plate, which is a pulp molded product, and the result was "Good”. In addition, the paper plate evaluation (practical oil test 2), the paper plate evaluation (practical oil test 3), and the paper plate test water resistance (practical water test 1) were also "good”.
- Peak ratio (peak intensity at 2 ⁇ of 5 ° or less) / (peak intensity at 2 ⁇ of 15 to 25 °) **Peak top change: At the measurement temperature of 25 ° C. to 130 ° C., the lowest temperature at which the value of 2 ⁇ of the peak top of the peak with 2 ⁇ of 5 ° or less at 25 ° C. changes by 0.2 ° or more.
- the contact angle of hexadecane shows values at measurement temperatures of 25°C and 70°C.
- ***High temperature contact angle measurement Shows the temperature when the contact angle is less than or equal to the predetermined contact angle. The measurement was performed in increments of 5.0°C.
- the compounds and oil resistant agents of the present disclosure can be applied to paper, especially food containers and food packaging materials.
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Abstract
Description
フッ素を含まない紙用耐油剤において、耐油性を与える炭化水素基を有する化合物(重合体)が有効成分として使用されることがある。炭化水素基による耐油性発現は長鎖アルキル部位の結晶性を利用しているものであるので、その耐熱性は、主として化合物の長鎖アルキル部位の結晶の融解温度に依存していると考えられ、その長鎖アルキル部位の結晶が融解する温度以上で耐油性を維持することが困難である。
特許文献2(WO2019/026593公報)は、(a)重合体に対して2~100重量%の、特定化学式のアミド基含有単量体から誘導された繰り返し単位を有している重合体、および(b)液状媒体を含む撥水剤組成物を開示している。
[式中、R1は、炭素数7~40の炭化水素基であり、R2は、水素原子またはメチル基であり、Y1は、−O−または−NH−であり、Y2は、−O−C(=O)−NH−または−NH−C(=O)−NH−であり、Zは、2価または3価の炭素数1~5の炭化水素基であり、nは、1または2である。]で示される含窒素単量体から誘導された繰り返し単位を有している重合体、および(2)液状媒体を含む撥水剤組成物を開示している。
特許文献4(特開2018−506657号公報)は、少なくとも1種のイソシアネートから誘導された基と、少なくとも16個の炭素原子を有する少なくとも1種の炭化水素基と、を含む少なくとも1種の(メタ)アクリレートモノマーの重合から誘導された、1種以上のポリマー化合物を含む、繊維基材を撥水性とする処理する方法を開示している。
(i)25℃の測定温度で、5°以下の2θにおけるピークの強度が、15~25°におけるピークの強度の0.7倍以上、
(ii)80℃の測定温度で、5°以下の2θにおけるピークの強度が、15~25°におけるピークの強度の0.7倍以上、
(iii)25℃の測定温度で、15~25°の2θにおけるピークの半値幅が2.0°以上、
(iv)25℃~70℃の測定温度において、5°以下の2θにおけるピークトップの値が変化しない、
(v)25℃~80℃の測定温度において、5°以下の2θにおけるピークの強度が維持されている、および
示差走査熱量法(DSC)測定において、
(vi)0℃~120℃の融解ピークの半値幅が4.5℃以上、
の少なくとも1つを満たす、測定温度25℃でヘキサデカン(HD)の接触角30°以上および/または25℃でコーン油に溶解しない非フッ素化合物を提供する。
(i)70℃でヘキサデカン(HD)の接触角30°以上、
(ii)120℃のコーン油に不溶
紙に付着させた際に、
(iii)70℃での耐油薄紙試験3分以上、
(iv)高温耐油薄紙試験80℃以上、および
(v)65℃の油を用いた紙皿試験で油染み50%未満、
の少なくとも1つを満たす、融点が30℃以上および/またはガラス転移温度が0℃以上および/または結晶化温度が30℃以上の非フッ素耐油性化合物(耐油性化合物)を提供する。
さらに、本開示は、上記の化合物を含む耐油剤を提供する。
X線回折法(XRD)測定において、
(i)25℃の測定温度で、5°以下の2θにおけるピークの強度が、15~25°におけるピークの強度の0.7倍以上である、
(ii)80℃の測定温度で、5°以下の2θにおけるピークの強度が、15~25°におけるピークの強度の0.7倍以上である、
(iii)25℃の測定温度で、15~25°の2θにおけるピークの半値幅が2.0°以上である、
(iv)25℃~70℃の測定温度で、5°以下の2θにおけるピークトップの値が変化しない、
(v)25℃~80℃の測定温度で、5°以下の2θにおけるピークの強度が維持されている、および
示差走査熱量法(DSC)測定において、
(vi)0℃~120℃の融解ピークの半値幅が4.5℃以上である、
の少なくとも1つを満たす、測定温度25℃でヘキサデカン(HD)の接触角30°以上および/または25℃でコーン油に溶解しない非フッ素化合物。
(i)70℃でヘキサデカン(HD)の接触角30°以上である、
(ii)120℃のコーン油に不溶である、
紙に付着させた際に、
(iii)70℃での耐油薄紙試験が3分以上である、
(iv)高温耐油薄紙試験が80℃以上である、および
(v)65℃の油を用いた紙皿試験で油染み50%未満である、
の少なくとも1つを満たす、融点が30℃以上および/またはガラス転移温度が0℃以上および/または結晶化温度が30℃以上の非フッ素化合物。
非フッ素化合物が直鎖の炭化水素基あるいは分岐状または環状の炭化水素基と水素結合部位を有する態様1または2に記載の非フッ素化合物。
態様4:
非フッ素化合物がアクリル化合物である態様3に記載の非フッ素化合物。
態様5:
態様1~4のいずれかに記載の非フッ素化合物を含む耐油剤。
非フッ素化合物が非フッ素重合体であり、
非フッ素重合体が、
(1)式:
CH2=C(−R12)−C(=O)−Y−X11(Z−X12−R11)k
[式中、R11は、炭素数3~22の直鎖状、分岐状または環状の炭化水素基であり、
R12は、水素原子、一価の有機基またはフッ素原子を除くハロゲン原子であり、
Yは、−O−または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)であり、
Zは、−NH−、−(C=O)−、−O−、−SO2−の少なくとも1つ以上で構成される基であり、
X11は、直接結合、炭素数1~20の炭化水素基(置換基を有する炭化水素部位を含んでもよい)、−(CH2CH2O)r−(rは1~10の整数)、−C6H4−、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)から選ばれる少なくとも1つ以上で構成される2~4価の基であり、
X12は、直接結合、炭素数1~20の炭化水素基(置換基を有する炭化水素部位を含んでもよい)、−(CH2CH2O)r−(rは1~10の整数)、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)から選ばれる少なくとも1つ以上で構成される2価の基であり、
kは1~3である。]、または
CH2=C(−R12)−C(=O)−O−(CH2)m−Z−R11
[ここで、R11、R12およびZは上記と同意義、mは1~20の数である。]
で示される炭化水素基・水素結合部位含有アクリル単量体から形成された繰り返し単位を有する態様5に記載の耐油剤。
非フッ素重合体が、
式:
CH2=C(−R22)−C(=O)−Y21−(R23)o(R21)m
または
CH2=C(−R32)−Y31−(H)5−n(R31)n
[式中、R21およびR31は、それぞれ独立的に反応性基または親水性基であり、
R22およびR32は、水素原子、一価の有機基、またはフッ素原子を除くハロゲン原子であり、
Y21は、直接結合、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)であり、
R23は、直接結合、または2~4価の炭素数1~10の炭化水素基(置換基を有する炭化水素部位を含んでもよい)を有する基であり、
Y31はベンゼン環であり、
Hは水素原子であり、
HおよびR31はY31にそれぞれ直接結合しており、
mおよびnは1~3であり、
oは、0または1である。]
で示される反応性/親水性単量体
および/または、式:
CH2=CR42−C(=O)−O−(RO)n−X41
[式中、X41は、水素原子または炭素数1~22の不飽和もしくは飽和の炭化水素基であり、
R42は、水素原子またはメチル基であり、
Rは、炭素数2~6のアルキレン基であり、
nは、1~90の整数である。]
で示される、反応性/親水性単量体から形成された繰り返し単位を有する態様6に記載の耐油剤。
非フッ素重合体が
式:
または
[式中、R51およびR61は、それぞれ独立的に直接結合、炭素数1~20の炭化水素基(置換基を有する炭化水素部位を含んでもよい)、−(CH2CH2O)r−(rは1~10の整数)、−C6H4−、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)から選ばれる少なくとも1つ以上で構成される2~4価の基であり、
R52およびR62は、それぞれ独立的に水素原子、一価の有機基、またはフッ素原子を除くハロゲン原子であり、
Y51は、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)であり、
pは、2~4であり、
qは1~5である。]
で示される架橋性単量体から形成された繰り返し単位を有する態様6または7に記載の耐油剤。
架橋剤を含んでなる態様5~8のいずれかに記載の耐油剤。
態様10:
態様5~9のいずれかに記載の耐油剤、および水または水と有機溶媒の混合物である液状媒体を含んでなる耐油剤組成物。
態様11:
さらに乳化剤(分散剤)を含む態様10に記載の耐油剤組成物。
態様12:
紙用耐油剤組成物である態様10または11に記載の耐油剤組成物。
態様1~12のいずれかに記載の非フッ素化合物、あるいは耐油剤または耐油剤組成物を紙に適用する耐油紙の処理方法。
態様14:
態様1~12のいずれかに記載の非フッ素化合物が付着している耐油紙。
耐油剤または耐油剤組成物は、(B)水および/または有機溶媒、好ましくは水または水と有機溶媒の混合物(水性媒体)である液状媒体をも含有することが好ましい。
耐油性化合物のX線回折法(XRD)測定において、
(i)25℃の測定温度で、5°以下の2θにおけるピークの強度が、15~25°におけるピークの強度の0.7倍以上、
(ii)80℃の測定温度で、5°以下の2θにおけるピークの強度が、15~25°におけるピークの強度の0.7倍以上、
(iii)25℃の測定温度で、15~25°の2θにおけるピークの半値幅が2.0°以上、
(iv)25℃~70℃の測定温度において、5°以下の2θにおけるピークトップの値が変化しない、
(v)25℃~80℃の測定温度において、5°以下の2θにおけるピークの強度が維持されている、のうち少なくとも一つを満たすことが好ましい。
または一般に、XRD測定において、2θが5°以下のピークはラメラ構造などの相分離構造に由来し、この構造が耐油性発現に重要である。2θが15~25°(例えばピークトップが、16°~24°、好ましくは18°~24°または19°~23°)のピークは長鎖アルキル基のパッキング(結晶性)に由来する。長鎖アルキル基のパッキングは撥液性向上に寄与するため、このピークを有していてもよいが、このピークのみでは高温での耐熱性の点で優れないため、2θが5°以下および15~25°の両方にピークを有することが好ましい。DSC測定において融点が100℃以上である場合、2θが5°以下のピークを有さなくてもよい。
高温での耐油性発現の観点で、2θが5°以下または15~25°のピークが、XRDにおいて最大強度のピークであることが好ましい。
(vi)0℃~120℃の融点の融解ピークの半値幅が4.5℃以上、
であることが好ましい。0℃~120℃の融点の融解ピークの半値幅が4.5℃以上、5.0℃以上、5.5℃以上または6.0℃以上が好ましい。0℃~120℃の融点の融解ピークの半値幅とは、0℃~120℃において融点が複数ある場合、もっとも熱量の大きい融解ピークの融点の半値幅のことを意味する。融解ピークの半値幅が大きいほど、結晶性が低い、もしくは結晶性がないことを意味する。また、融点は高い方が好ましく、30℃以上、40℃以上、50℃以上、70℃以上、80℃以上、90℃以上がより好ましい。さらに120℃を超えても固体状態を維持し、0~180℃において融点を有さないことも好ましい。
(i)70℃でヘキサデカン(HD)の接触角30°以上、
(ii)120℃のコーン油に不溶
紙に付着させた際に、
(iii)70℃での耐油薄紙試験3分以上、
(iv)高温耐油薄紙試験80℃以上、および
(v)65℃の油を用いた紙皿試験で油染み50%未満、
の少なくとも1つを満たすことが好ましい。
耐油性化合物の固形分濃度1.0%の溶液(溶媒はクロロホルムやメタノールなどの耐油性化合物の良溶媒)をシリコンウエハ基板上にスピンコートし静的接触角を測定できる。静的接触角は、塗膜上に、2μLのヘキサデカンを滴下し、着滴1秒後の接触角を全自動接触角計(協和界面科学製DropMaster701)を用いて測定できる。所定の温度での静的接触角測定(温度可変接触角測定)は、2μLのヘキサデカン着滴後、シリコンウエハ基板の温度を所定の温度にした後、1分後の接触角を全自動接触角計(協和界面科学製DropMaster701)を用いて測定できる。
70℃での耐油薄紙試験は、70℃のコーン油を処理紙の表面におき、70℃のオーブンで保持した際に、コーン油が染み込むまでの時間を測定する。70℃の耐油薄紙試験の時間(分数)は値が高いほど70℃での耐油性が高いことになる。
高温耐油薄紙試験は、所定の温度のコーン油を処理紙の表面におき、所定の温度のオーブンで1分保持した際に、コーン油の染み込みを目視で判断する。コーン油が染み込まない最高温度をその評価結果とする。高温耐油薄紙試験の温度は値が高いほど高温耐油性が高いことになる。
紙皿試験は、容器状に成形した、耐油性化合物を含むパルプモールド製品に65℃の評価液(コーン油)を100ml注ぎ入れ、5分間静置した後に評価液を廃棄して、パルプモールド製品(容器)への評価液の染み具合を下記の基準に従い目視で評価する。
○:パルプモールド容器底の外側の油染みが容器底面積の50%未満
×:パルプモールド容器底の外側の油染みが容器底面積の50%以上
耐油性化合物は、70℃さらに好ましくは75℃、80℃の油を用いた紙皿試験において、油の染みが50%未満であることが好ましい。また、評価液(コーン油)を100ml注ぎ入れ、5分間静置した後、または10分間、好ましくは20分間、30分間、40分間、45分間静置した後に評価液を廃棄して、パルプモールド製品(容器)への評価液の染み具合において、パルプモールド容器底の外側の油染みが容器底面積の50%未満が好ましく、40%未満、30%未満、好ましくは20%未満、10%未満、5%未満がより好ましい。
耐油性化合物は、直鎖(または分岐状または環状)の炭化水素基と水素結合部位を有するアクリル化合物であることが合成の簡便さの点で好ましい。アクリル化合物とは、アクリロイル基(H2C=CR1−C(=O)−、R1は水素原子、メチル基または塩素原子などのハロゲン原子である)を有する化合物を意味する。
(1)直鎖状(または分岐状または環状)の炭化水素基と水素結合部位を有するアクリル単量体
から形成されている繰り返し単位を有する耐油性重合体である。
「耐油性重合体」は、本明細書において、単に「重合体」とも呼ぶ。
耐油性重合体は、さらに、
(2)反応性および/または親水性基を有するアクリル単量体
から形成されている繰り返し単位を有していてもよい。
さらに、耐油性重合体は、単量体(1)および(2)に加えて、
(3)架橋性基を有する単量体
から形成されている繰り返し単位を有していてもよい。
耐油性重合体は、単量体(1)、(2)および(3)に加えて、
(4)他の単量体
から形成される繰り返し単位を有していてもよい。
耐油性重合体は、非フッ素耐油性重合体であることが好ましい。
炭化水素基・水素結合部位含有アクリル単量体(あるいは「炭化水素基含有単量体」)は、炭素数3~22の直鎖(または分岐状または環状)の炭化水素基および水素結合部位を有する。
直鎖(または分岐状または環状)の炭化水素基は、脂肪族炭化水素基、特に飽和の脂肪族炭化水素基、特別にアルキル基であることが好ましい。炭化水素基の炭素数は、3~22である。(直鎖状、分岐状または環状の)炭化水素基の炭素数について、下限は、3、4、5、6、7、8、9、10または11であってよく、上限は、22、21、20、19、18、17、16、15、14、13、12であってよい。直鎖状の炭化水素基において、炭素数3~22であることが好ましく、3~20であることが好ましく、3~18、3~16、3~14、4~22、4~20、4~18、4~16、4~14であることが好ましく、6~22、6~20、6~18、6~16、6~14、または8~18、8~16、8~14が好ましい。分岐状の炭化水素基において、炭素数3~22であることが好ましく、3~20であることが好ましく、3~18、3~16、3~14、4~22、4~20、4~18、4~16、4~14であることが好ましく、6~22、6~20、6~18、6~16、6~14、または8~18、8~16、8~14が好ましい。環状の炭化水素基において、炭素数3~22であることが好ましく、3~20であることが好ましく、3~18、3~16、3~14、4~22、4~20、4~18、4~16、4~14であることが好ましく、6~22、6~20、6~18、6~16、6~14、または8~18、8~16、8~14が好ましい。直鎖の炭化水素基は、耐油性に優れるため、最も好ましい。
炭化水素基・水素結合部位含有アクリル単量体は、非フッ素単量体であることが好ましい。
CH2=C(−R12)−C(=O)−Y−X11(−Z−X12−R11)k
[式中、R11は、炭素数3~22の直鎖状、分岐状または環状の炭化水素基であり、
R12は、水素原子、一価の有機基またはフッ素原子を除くハロゲン原子であり、
Yは、−O−または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)であり、Zは、−NH−、−(C=O)−、−O−、−SO2−の少なくとも1つ以上で構成される基であり、
X11は、直接結合、炭素数1~20の炭化水素基(置換基を有する炭化水素部位を含んでもよい)、−(CH2CH2O)r−(rは1~10の整数)、−C6H4−、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)から選ばれる少なくとも1つ以上で構成される2~4価の基であり、
X12は、直接結合、炭素数1~20の炭化水素基(置換基を有する炭化水素部位を含んでもよい)、−(CH2CH2O)r−(rは1~10の整数)、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)から選ばれる少なくとも1つ以上で構成される2価の基であり、
kは1~3である。]
で示される単量体であることが好ましい。
Yは、−O−または−NH−であることが好ましい。
X11は直接結合でないことが好ましい。
CH2=C(−R12)−C(=O)−O−(CH2)m−Z−R11
[ここで、R11、R12およびZは上記と同意義、mは1~20の数である。]
であることが好ましい。
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−C3H7
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−C6H13
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−C8H17
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−C10H21
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−C12H25
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−C14H29
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−C16H33
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−C18H37
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−C22H45
CH2=CH−C(=O)−O−(CH2)m−NH−C(=O)−NH−CnH2n+1
CH2=CCH3−C(=O)−O−(CH2)m−NH−C(=O)−NH−CnH2n+1
CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−C11H23
CH2=CH−C(=O)−O−CH2CH2−O−C(=O)−NH−C12H25
CH2=CH−C(=O)−O−(CH2)m−NH−C(=O)−CnH2n+1
CH2=CH−C(=O)−O−(CH2)m−O−C(=O)−NH−CnH2n+1
CH2=CH−C(=O)−O−(CH2)m−NH−C(=O)−O−CnH2n+1
CH2=CCH3−C(=O)−O−(CH2)m−NH−C(=O)−CnH2n+1
CH2=CCH3−C(=O)−O−(CH2)m−O−C(=O)−NH−CnH2n+1
CH2=CCH3−C(=O)−O−(CH2)m−NH−C(=O)−O−CnH2n+1
CH2=CH−C(=O)−NH−(CH2)m−NH−C(=O)−CnH2n+1
CH2=CH−C(=O)−NH−(CH2)m−O−C(=O)−NH−CnH2n+1
CH2=CH−C(=O)−NH−(CH2)m−NH−C(=O)−O−CnH2n+1
CH2=CH−C(=O)−NH−(CH2)m−NH−C(=O)−NH−CnH2n+1
CH2=CCH3−C(=O)−NH−(CH2)m−NH−C(=O)−CnH2n+1
CH2=CCH3−C(=O)−NH−(CH2)m−O−C(=O)−NH−CnH2n+1
CH2=CCH3−C(=O)−NH−(CH2)m−NH−C(=O)−O−CnH2n+1
CH2=CCH3−C(=O)−NH−(CH2)m−NH−C(=O)−NH−CnH2n+1
[ここで、mは1~20の数、nは3~22の数である。]
反応性/親水性単量体は、1つのエチレン性不飽和二重結合と、少なくとも1つの反応性基および/または親水性基を有する。
反応性基の例は、エポキシ基(例えば、グリシジル基)、クロロメチル基、ブロモメチル基、ヨードメチル基、ブロックイソシアネート基である。
親水性基の例は、ヒドロキシル基、アミノ基、オキシアルキレン基(アルキレン基の炭素数2~6)、カルボン酸基、スルホン酸基、リン酸基、さらにカルボン酸、スルホン酸、リン酸のアルカリ金属塩基、アルカリ土類金属塩基、またはメチルアンモニウム塩基、エタノールアンモニウム塩基、トリエタノールアンモニウム塩基、塩素または臭素、ヨウ素イオン、酢酸イオンが対アニオンである三級または四級のアミノ基およびその塩(例えば酢酸塩)である。
反応性/親水性単量体は非フッ素単量体であることが好ましい。
CH2=C(−R22)−C(=O)−Y21−(R23)o(R21)m
または
CH2=C(−R32)−Y31−(H)5−n(R31)n
[式中、R21およびR31は、それぞれ独立的に反応性基または親水性基であり、
R22およびR32は、水素原子、一価の有機基、またはフッ素原子を除くハロゲン原子であり、
Y21は、直接結合、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)であり、
R23は、直接結合、または2~4価の炭素数1~10の炭化水素基(置換基を有する炭化水素部位を含んでもよい)を有する基であり、
Y31はベンゼン環であり、
Hは水素原子であり、
HおよびR31はY31にそれぞれ直接結合しており、
mおよびnは1~3であり、
oは、0または1である。]
で示される単量体(アクリル単量体)であることが好ましい。
Y21は、−O−または−NH−であることが好ましい。
CH2=CR42−C(=O)−O−(RO)n−X41
[式中、X41は、水素原子または炭素数1~22の不飽和もしくは飽和の炭化水素基であり、
R42は、水素原子またはメチル基であり、
Rは、炭素数2~6のアルキレン基であり、
nは、1~90の整数である。]
で示されるオキシアルキレン基含有単量体であってよい。
Rは、直鎖または分岐のアルキレン基であってよく、例えば、式−(CH2CH2)x−、−(CH2−CH(CH3))x−、または−(CH(CH3)−CH2)x−[式中、xは1~3、例えば1~2]である。
−(RO)n−において、Rは2種類以上であってよく、−(RO)n−は、例えば、−(R1O)n1−と−(R2O)n2−[式中、R1とR2は、相互に異なって、炭素数2~6のアルキレン基であり、n1およびn2は、1以上の数であり、n1とn2の合計は2~90である。]の組み合わせであってよい。
CH2=CR42COO−(CH2CH2O)n−H
CH2=CR42COO−(CH2CH2O)n−CH3
CH2=CR42COO−(CH2CH(CH3)O)n−H
CH2=CR42COO−((CH2CH2O)x1−(CH2CH(CH3)O)x2)n−H
CH2=CR42COO−(CH2CH(CH3)O)n−CH3
CH2=CR42COO−((CH2CH2O)x1−(CH2CH(CH3)O)x2)n−CH3
CH2=CR42COO−((CH2CH2O)x1−(CH(CH3)CH2O)x2)n−CH3
CH2=CR42COO−((CH2CH2O)x1−(CH(CH3)CH2O)x2)n−H
[R42は、水素原子またはメチル基であり、
nは、1~90の整数であり、
x1およびx2はそれぞれ1以上でx1とx2の合計は2~3である。]
ヒドロキシメチル(メタ)アクリルアミド、ヒドロキシエチル(メタ)アクリルアミド、3−ヒドロキシプロピル(メタ)アクリルアミド、2−ヒドロキシプロピル(メタ)アクリルアミド、2,3−ジヒドロキシプロピル(メタ)アクリルアミド、3−クロロ−2−ヒドロキシプロピル(メタ)アクリルアミド、3−ヒドロキシブチル(メタ)アクリルアミド、4−ヒドロキシブチル(メタ)アクリルアミド、2−ヒドロキシブチル(メタ)アクリルアミド、2−アセトアセトキシエチル(メタ)アクリルアミド、t−ブチルアクリルアミド、ジアセトンアクリルアミドおよび
4−ヒドロキシメチルスチレン、4−ヒドロキシエチルスチレン、4−アミノメチルスチレン、4−アミノエチルスチレン、2−(4−ビニルフェニル)オキシラン、2−(4−ビニルベンゾイル)オキシラン、
CH2=CHCOO−CH2CH2−N(CH3)2およびその塩(例えば酢酸塩)
CH2=CHCOO−CH2CH2−N(CH2CH3)2およびその塩(例えば酢酸塩)
CH2=C(CH3)COO−CH2CH2−N(CH3)2およびその塩(例えば酢酸塩)
CH2=C(CH3)COO−CH2CH2−N(CH2CH3)2およびその塩(例えば酢酸塩)
CH2=CHCO−NH−CH2CH2CH2−N(CH3)2およびその塩(例えば酢酸塩)
CH2=CHCOO−CH2CH2−N(CH3)( CH2C6H5)およびその塩(例えば酢酸塩)
CH2=C(CH3)COO−CH2CH2−N(CH2CH3)( CH2C6H5)およびその塩(例えば酢酸塩)
CH2=CHCOO−CH2CH2−N+(CH3)3Cl−
CH2=CHCOO−CH2CH2−N+(CH3)2(CH2C6H5)Cl−
CH2=C(CH3)COO−CH2CH2−N+(CH3)3Cl−
CH2=CHCOO−CH2CH(OH)CH2−N+(CH3)3Cl−
CH2=C(CH3)COO−CH2CH(OH)CH2−N+(CH3)3Cl−
CH2=C(CH3)COO−CH2CH(OH)CH2−N+(CH2CH3)2(CH2C6H5)Cl−
CH2=C(CH3)COO−CH2CH2−N+(CH3)3Br−
CH2=C(CH3)COO−CH2CH2−N+(CH3)3I−
CH2=C(CH3)COO−CH2CH2−N+(CH3)3O−SO3CH3
CH2=C(CH3)COO−CH2CH2−N+(CH3)( CH2C6H5)2Br−
である。
架橋性単量体は、少なくとも2つ(特に、2つ、3つまたは4つ)のエチレン性不飽和二重結合を有する化合物である。架橋性単量体は非フッ素単量体であることが好ましい。
または
[式中、R51およびR61は、それぞれ独立的に直接結合、炭素数1~20の炭化水素基(置換基を有する炭化水素部位を含んでもよい)、−(CH2CH2O)r−(rは1~10の整数)、−C6H4−、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)から選ばれる少なくとも1つ以上で構成される2~4価の基であり、
R52およびR62は、それぞれ独立的に水素原子、一価の有機基、またはフッ素原子を除くハロゲン原子であり、
Y51は、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)であり、
pは、2~4であり、
qは1~5である。]
で示される単量体であることが好ましい。
Y51は、−O−または−NH−であることが好ましい。
架橋性単量体は、ジ(メタ)アクリレートであることが好ましい。
単量体(1)~(3)以外の他の単量体を使用しても良い。
他の単量体の例には、例えば、エチレン、酢酸ビニル、アクリロニトリル、塩化ビニル、スチレン、ポリエチレングリコール(メタ)アクリレート、ポリプロピレングリコール(メタ)アクリレート、メトキシポリエチレングリコール(メタ)アクリレート、メトキシポリプロピレングリコール(メタ)アクリレート、メチル(メタ)アクリレートおよびビニルアルキルエーテルが含まれる。他の単量体は非フッ素単量体であることが好ましい。他の単量体はこれらの例に限定されない。
単量体(1):40モル%以上、50モル%以上、60モル%以上、70モル%以上または80モル%以上、(下限は、10モル、20モル%、30モル%、40モル%、50モル%、60モル%であってよい。上限は、99モル%、95モル%、90モル%、85モル%、80モル%、75モル%、70モル%または65モル%であってよい。)
単量体(2):0~50モル%、2~40モル%または2~30モル%(下限は、1モル、2モル%、3モル%、5モル%、8モル%、10モル%、12モル%または15モル%であってよい。上限は、50モル%、45モル%、40モル%、35モル%、30モル%、25モル%、20モル%または15モル%であってよい。)
単量体(3):0~30モル%、0~20モル%または1~10モル%(下限は、1モル、2モル%、3モル%、5モル%、8モル%、10モル%、12モル%または15モル%であってよい。上限は、40モル%、35モル%、30モル%、25モル%、20モル%、15モル%、10モル%または5モル%であってよい。)
重合(例えば、溶液重合、乳化重合、または溶液重合)後、水を加えてから脱溶剤して、重合体を水に分散させてもよい。乳化剤(分散剤)を加える必要なく、自己分散型の製品を製造することができる。
油溶性重合開始剤の具体例としては、2,2’−アゾビス(2−メチルプロピオニトリル)、2,2’−アゾビス(2−メチルブチロニトリル)、2,2’−アゾビス(2、4−ジメチルバレロニトリル)、2,2’−アゾビス(2、4−ジメチル4−メトキシバレロニトリル)、1,1’−アゾビス(シクロヘキサン−1−カルボニトリル)、ジメチル2,2’−アゾビス(2−メチルプロピオネート)、2,2’−アゾビス(2−イソブチロニトリル)、ベンゾイルパーオキシド、ジ−第三級−ブチルパーオキシド、ラウリルパーオキシド、クメンヒドロパーオキシド、t−ブチルパーオキシピバレート、ジイソプロピルパーオキシジカーボネート、過ピバル酸t−ブチル等が好ましく挙げられる。
重合開始剤は単量体100モル部に対して、0.01~5モル部の範囲で用いられる。
溶液重合では、単量体を有機溶剤に溶解させ、窒素置換後、重合開始剤を添加して、例えば40~120℃の範囲で1~10時間、加熱撹拌する方法が採用される。重合開始剤は、一般に、油溶性重合開始剤が好ましい。
ならびに
油溶性重合開始剤、例えば、2,2’−アゾビス(2−メチルプロピオニトリル)、2,2’−アゾビス(2−メチルブチロニトリル)、2,2’−アゾビス(2、4−ジメチルバレロニトリル)、2,2’−アゾビス(2、4−ジメチル4−メトキシバレロニトリル)、1,1’−アゾビス(シクロヘキサン−1−カルボニトリル)、ジメチル2,2’−アゾビス(2−メチルプロピオネート)、2,2’−アゾビス(2−イソブチロニトリル)、ベンゾイルパーオキシド、ジ−第三級−ブチルパーオキシド、ラウリルパーオキシド、クメンヒドロパーオキシド、t−ブチルパーオキシピバレート、ジイソプロピルパーオキシジカーボネート、過ピバル酸t−ブチル
が用いられる。重合開始剤は単量体100モル部に対して、0.01~10モル部の範囲で用いられる。
耐油剤において、耐油性化合物の濃度は、例えば、0.01~50重量%であってよい。耐油剤は、乳化剤を含まないことが好ましいが、含んでいても良い。
架橋剤は、耐油性化合物の水分散体を基材に処理した後、加熱する際に架橋するものが好ましい。また、架橋剤そのものも水に分散しているものが好ましい。
[A(NCO)m(式中、Aは、ポリイソシアネートからイソシアネート基が除去された後に残る基であり、mは2~8の整数である。)であってよい]イソシアネートを
[RH(式中、Rは、窒素原子または酸素原子のようなヘテロ原子によって置換されていてよい炭化水素基であってよく、Hは水素原子である)であってよい]ブロック剤と反応させることによって、製造することができる。
R基を形成するブロック剤の例は、オキシム、フェノール、アルコール、メルカプタン、アミド、イミド、イミダゾール、尿素、アミン、イミン、ピラゾールおよび活性メチレン化合物である。
架橋剤の量は、耐油性化合物の100重量部に対して、0~30重量部または0.01~20重量部、例えば0.1~18重量部であってよい。または、架橋剤の量は、耐油性化合物が有する−OH基、エポキシ基、アミノ基に対して、架橋剤の−NCO基の割合が0.1~3.0当量、0.1~1.5当量、0.1~1.0当量の範囲で用いることが好ましい。
耐油剤は、従来既知の方法により被処理物に適用することができる。通常、耐油剤を有機溶剤または水に分散して希釈して、浸漬塗布、スプレー塗布、泡塗布などのような既知の方法により、被処理物の表面に付着させ、乾燥する方法が採られる(表面処理)。
被処理物の紙基材としては、紙、紙でできた容器、紙でできた成形体(例えばパルプモールド)などが挙げられる。被処理物の布基材の例としては、綿、麻、羊毛、絹等の動植物性天然繊維、ポリアミド、ポリエステル、ポリビニルアルコール、ポリアクリロニトリル、ポリ塩化ビニル、ポリプロピレン等の合成繊維、レーヨン、アセテート等の半合成繊維、ガラス繊維、炭素繊維等の無機繊維、あるいはこれらの混合繊維が挙げられる。布製品には、織物、編物及び不織布、衣料品形態の布及びカーペットが含まれるが、布とする前の状態の繊維、糸、中間繊維製品(例えば、スライバー又は粗糸等)に対して、処理がなされてもよい
本開示の耐油性化合物は、紙基材に良好に付着する。
1つの塗布方式は、2本のゴムロールの間に紙を通して形成されるニップ部に塗布液(サイズ液)を供給し、ポンドと呼ばれる塗液溜りを作り、この塗液溜りに紙を通して紙の両面にサイズ液を塗布する、いわゆるポンド式ツーロールサイズプレスである。他の塗布方式は、サイズ液を表面転写型により塗布するゲートロール型、及び、ロッドメタリングサイズプレスである。ポンド式ツーロールサイズプレスにおいてサイズ液は紙の内部まで浸透しやすく、表面転写型においてサイズ液成分は紙の表面に留まりやすい。表面転写型は、ポンド式ツーロールサイズプレスと比べて、塗布層が紙の表面に留まりやすく、表面に形成される耐油層がポンド式ツーロールサイズプレスより多い。
本開示では、前者のポンド式2ロールサイズプレスを用いた場合でも紙に耐油性能を付与できる。
このように処理された紙は、室温または高温での簡単な乾燥後に、任意に、紙の性質に依存して300℃まで、例えば200℃まで、特に80℃~180℃の温度範囲をとり得る熱処理を伴うことで、優れた耐油性および耐水性を示す。
必要により、澱粉、ポリビニルアルコール、染料、コーティングカラー、防滑剤等を用いて、サイズプレス、ゲートロールコーター、ビルブレードコーター、キャレンダー等によって、耐油剤を紙に塗布することができる。
内添においては、紙を形成するパルプ100重量部に対して、耐油剤の量が0.01~50重量部または0.01~30重量部、例えば0.01~10重量部となるように、耐油剤をパルプと混合することが好ましい。
外添および内添において、澱粉および変性澱粉と耐油性化合物との重量比は、10:90~98:2であってよい。
以下において、部、%または比は、特記しない限り、重量部、重量%または重量比を表す。
耐油性化合物の融点、結晶化温度、およびガラス転移温度は、示差走査熱量測定(DSC)により算出した。DSC測定は窒素雰囲気下、−20℃に冷却した後、10℃/分で200℃まで昇温後、再度−20℃に冷却し、その後の10℃/分で200℃まで昇温過程に観測される融点を測定した。複数融解ピークが現れる重合体においては、最も融解熱量の大きいピークを融点とした。ピークの半値幅は、ベースラインとピークトップの半分の高さにおける融点ピークの温度の幅とした。
耐油性化合物の結晶状態は、25℃の測定温度においてRIGAKUのSmartLabを用いてX線回折法(XRD)にて測定した。CuのKα線を用いた。温度可変XRD(XRD−DSC)測定は窒素雰囲気下、−20℃に冷却した後、5℃/分で所定の温度まで昇温後、測定を行った。ピークの半値幅は、ベースラインとピークトップの半分の強度でのピークの2θの幅とした。
得られた耐油性化合物の固形分濃度1.0%のクロロホルム溶液またはメタノール溶液をシリコンウエハ基板上にスピンコートし静的接触角を測定した。静的接触角は、25℃の測定温度で塗膜上に、2μLのヘキサデカンを滴下し、着滴1秒後の接触角を全自動接触角計(協和界面科学製DropMaster701)を用いて測定した。
静的接触角測定と同様にシリコンウエハ基板上にサンプルを塗布し、塗膜上に2μLのヘキサデカンを滴下した後、シリコンウエハの基板の温度を所定の温度にした後、1分後の接触角を全自動接触角計(協和界面科学製DropMaster701)を用いて測定した。
木材パルプとして、LBKP(広葉樹さらしクラフトパルプ)とNBKP(針葉樹さらしクラフトパルプ)の重量比率が、60重量%と40重量%で、かつ、パルプのろ水度が400ml(Canadian Standard Freeness)のパルプスラリーを調製し、このパルプスラリーに湿潤紙力剤、サイズ剤を添加して長網抄紙機により、紙密度が0.58g/cm3の坪量45g/m2の紙を外添処理(サイズプレス処理)の原紙として使用した。この原紙の耐油性(KIT値)は0、耐水性(Cobb値)は52g/m2であった。この原紙に対して、14.9mg/cm3の耐油剤化合物溶液(クロロホルムまたはメタノール溶媒)を、ギャップを0milの設定したベーカー式アプリケーターで塗工し乾燥する操作を行い、70℃または140℃で10分アニールすることで、処理紙を作成した。
3Mキットテスト(TAPPI T−559cm−02)により測定した。3Mキットテスト法は、ヒマシ油、トルエン、ヘプタンが配合された試験油を処理紙の表面におき、15秒後に試験油を拭った際、処理紙への油染みの有無により評価した。キット番号1~6の試験油にて試験を実施し、染みが見られなかった最大のキット番号を耐油性の評価結果とした。KIT試験の値が高いほど高い耐油性を有していることになる。
測定温度25℃においてコーン油を処理紙の表面におき、15秒後に試験油を拭った際、処理紙への油染みの有無により評価した。染みがない場合を「○」、染みが見られるときを「×」とした。
70℃のコーン油を処理紙の表面におき、70℃のオーブンで保持した際に、コーン油が染み込むまでの時間を測定した。
所定の温度のコーン油を処理紙の表面におき、所定の温度のオーブンで1分保持した際に、処理紙への油染みの有無を目視により評価した。染みが見られなかった最も高い温度を高温耐油性の評価結果とした。測定は10℃刻みで行った。
25℃のコーン油1.00gに耐油性化合物0.01gを入れ目視でその溶解性を観察した。25℃で攪拌し5分後に目視で溶解していない場合(一部溶解し一部溶け残った場合を含む)「不溶(○)」、完全に溶解した場合「溶解(×)」とした。
120℃のコーン油1.00gに耐油性化合物0.01gを入れ目視でその溶解性を観察した。120℃で攪拌し5分後に目視で溶解していない場合(一部溶解し一部溶け残った場合を含む)「不溶(○)」、完全に溶解した場合「溶解(×)」とした。
容器状に成形したパルプモールド製品に65℃の評価液(コーン油)を100ml注ぎ入れ、5分間静置した後に評価液を廃棄して、パルプモールド製品(容器)への評価液の染み具合を下記の基準に従い目視で評価した。
○:パルプモールド容器底の外側の油染みが容器底面積の50%未満
×:パルプモールド容器底の外側の油染みが容器底面積の50%以上
容器状に成形したパルプモールド製品に65℃の評価液(コーン油)を100ml注ぎ入れ、45分間静置した後に評価液を廃棄して、パルプモールド製品(容器)への評価液の染み具合を下記の基準に従い目視で評価した。
○:パルプモールド容器底の外側の油染みがない
×:パルプモールド容器底の外側の油染みがある
容器状に成形したパルプモールド製品に80℃の評価液(コーン油)を100ml注ぎ入れ、45分間静置した後に評価液を廃棄して、パルプモールド製品(容器)への評価液の染み具合を下記の基準に従い目視で評価した。
○:パルプモールド容器底の外側の油染みがない
×:パルプモールド容器底の外側の油染みがある
容器状に成形したパルプモールド製品に100℃の水を100ml注ぎ入れ、45分間静置した後に評価液を廃棄して、パルプモールド製品(容器)への評価液の染み具合を下記の基準に従い目視で評価した。
○:パルプモールド容器底の外側の水の染みがない
×:パルプモールド容器底の外側の水の染みがある
C12UreaA:CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−n−C12H25
C3UreaA:CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−n−C3H7
C6UreaA:CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−n−C6H13
C8UreaA:CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−n−C8H17
C18UreaA:CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−NH−n−C18H37
C11AEA:CH2=CH−C(=O)−O−CH2CH2−NH−C(=O)−n−C11H23
StA:CH2=CH−C(=O)−O−n−C18H37
HBA:4−ヒドロキシブチルアクリレート
DMAEMA:N,N−ジメチルアミノエチルメタクリレート
窒素置換した反応容器内にC12UreaA1.00g、アゾビスイソブチロニトリル0.005g、トルエン4mlを添加し、72℃で8時間加熱撹拌後、メタノールに再沈殿することでPC12UreaA(C12UreaAのポリマー)を収率95%で得た。
<合成例2~18>
表1に示すモノマーを、アゾビスイソブチロニトリル1モル当量に対して、表1に示す組成比で添加すること、および合成例13と14では再沈殿にアセトンを用いたことを除いては合成例1と同様にしてポリマーを得た。
<比較合成例1>
表1に示すモノマーを、アゾビスイソブチロニトリル1モル当量に対して、表1に示す組成比で添加することを除いては合成例1と同様にしてポリマーを得た。
<合成例19>
C12UreaA 0.7g、HBA0.039g、DMAEMA 0.023g、酢酸0.009gおよびオレイン酸ポリグリセリル 0.1g、塩化アルキルビス(2−ヒドロキシエチル)メチルアンモニウムクロリド 0.071g、ポリオキシエチレンオレイルエーテル 0.037g、水 7mlを混合し、超音波ホモジナイザーにより乳化した。2,2’−Azobis(2−methylpropionamidine)dihydrochloride 7mgを加え、75℃で12時間加熱し、ポリマー分散液を得た。
図1に、合成例1で得られたポリマーの種々の測定温度におけるX線回折図を示す。
図2に、合成例1で得られたポリマーの(a)測定温度25℃および(b)測定温度80℃における拡大したX線回折図を示す。
図3に、合成例18で得られたポリマーの種々の測定温度におけるX線回折図を示す。
図面における凡例の数値はそのXRDチャート測定時の温度(℃)を示す。
図4に、合成例1で得られたポリマーの示差走査熱量法(DSC)測定のチャートを示す。
表2に示す化合物を用いて、シリコン基板を用いて測定用サンプルを作成し静的接触角測定および高温接触角測定を行った。また処理紙を作成し、KIT試験、コーン油耐性評価、70℃耐油薄紙試験、および高温耐油薄紙試験を行った。さらに120℃コーン油溶解試験を行った。結果を表2に示す。
合成例6~11において、25℃コーン油溶解試験は全て○(不溶)であった。
シリコン基板サンプル作成および処理紙作成において、実施例13と14では処理紙作成の際にメタノールを溶媒として用いた。その他はクロロホルムを溶媒として用いた。
合成例3と1,3,5−tris(6−isocyanatohexyl)−1,3,5−triazinane−2,4,6−trioneを用いたことを除いては、実施例1と同様にして処理紙を作成し評価を行った。1,3,5−tris(6−isocyanatohexyl)−1,3,5−triazinane−2,4,6−trioneは合成例3の化合物の−OH基に対して1.0当量の−NCO基になるように添加した。結果を表2に示す。
<実施例20>
用いた1,3,5−tris(6−isocyanatohexyl)−1,3,5−triazinane−2,4,6−trioneの量を合成例3の化合物の−OH基に対して3.0当量の−NCO基になるように添加した以外は、合成例19と同様にした。結果を表2に示す。
<比較例1>
比較合成例1を用いたことを除いては、実施例1~18と同様にして試験評価を行った。結果を表2に示す。
〔紙皿の作成〕
ろ水度が550cc(カナディアンフリーネス)に、叩解した70部の広葉樹漂白クラフトパルプと30部の針葉樹漂白クラフトパルプとの混合物の0.5重量%の水分散液2000gをかき混ぜながら添加し、次いで耐油性化合物(合成例5)の水分散液を水で固形分10%に希釈したもの10gを添加して撹拌を1分間続けた。
<実施例22>
〔紙皿の作成〕
ろ水度が550cc(カナディアンフリーネス)に、叩解した70部の広葉樹漂白クラフトパルプと30部の針葉樹漂白クラフトパルプとの混合物の0.5重量%の水分散液2000gをかき混ぜながら添加し、次いで合成例19の水分散液3gを添加して撹拌を1分間続けた。
*ピーク比:(ピーク比)=(2θが5°以下のピークの強度)/(2θが15~25°のピークの強度)
**ピークトップ変化:
測定温度25℃~130℃において、25℃での2θが5°以下のピークのピークトップの2θの値が0.2°以上変化する最も低い温度
25℃~130℃までの測定で、2θが5°以下のピークのピークトップの2θの値が0.2°以上変化しない場合は、変化なしと記載
***ピークトップ強度:
測定温度25℃~130℃において、25℃での2θが5°以下のピークのピーク強度を100%とした場合、2θが5°以下のピークのピーク強度が50%以下になる最も低い温度。
25℃~130℃までの測定で、2θが5°以下のピークのピーク強度が50%以下にならない場合は、変化なしと記載
Claims (14)
- X線回折法(XRD)測定において、
(i)25℃の測定温度で、5°以下の2θにおけるピークの強度が、15~25°におけるピークの強度の0.7倍以上である、
(ii)80℃の測定温度で、5°以下の2θにおけるピークの強度が、15~25°におけるピークの強度の0.7倍以上である、
(iii)25℃の測定温度で、15~25°の2θにおけるピークの半値幅が2.0°以上である、
(iv)25℃~70℃の測定温度で、5°以下の2θにおけるピークトップの値が変化しない、
(v)25℃~80℃の測定温度で、5°以下の2θにおけるピークの強度が維持されている、および
示差走査熱量法(DSC)測定において、
(vi)0℃~120℃の融解ピークの半値幅が4.5℃以上である、
の少なくとも1つを満たす、測定温度25℃でヘキサデカン(HD)の接触角30°以上および/または25℃でコーン油に溶解しない非フッ素化合物。 - (i)70℃でヘキサデカン(HD)の接触角30°以上である、
(ii)120℃のコーン油に不溶である、
紙に付着させた際に、
(iii)70℃での耐油薄紙試験が3分以上である、
(iv)高温耐油薄紙試験が80℃以上である、および
(v)65℃の油を用いた紙皿試験で油染み50%未満である、
の少なくとも1つを満たす、融点が30℃以上および/またはガラス転移温度が0℃以上および/または結晶化温度が30℃以上の非フッ素化合物。 - 非フッ素化合物が直鎖の炭化水素基あるいは分岐状または環状の炭化水素基と水素結合部位を有する請求項1または2に記載の非フッ素化合物。
- 非フッ素化合物がアクリル化合物である請求項3に記載の非フッ素化合物。
- 請求項1~4のいずれかに記載の非フッ素化合物を含む耐油剤。
- 非フッ素化合物が非フッ素重合体であり、
非フッ素重合体が、
(1)式:
CH2=C(−R12)−C(=O)−Y−X11(Z−X12−R11)k
[式中、R11は、炭素数3~22の直鎖状、分岐状または環状の炭化水素基であり、
R12は、水素原子、一価の有機基またはフッ素原子を除くハロゲン原子であり、
Yは、−O−または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)であり、
Zは、−NH−、−(C=O)−、−O−、−SO2−の少なくとも1つ以上で構成される基であり、
X11は、直接結合、炭素数1~20の炭化水素基(置換基を有する炭化水素部位を含んでもよい)、−(CH2CH2O)r−(rは1~10の整数)、−C6H4−、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)から選ばれる少なくとも1つ以上で構成される2~4価の基であり、
X12は、直接結合、炭素数1~20の炭化水素基(置換基を有する炭化水素部位を含んでもよい)、−(CH2CH2O)r−(rは1~10の整数)、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)から選ばれる少なくとも1つ以上で構成される2価の基であり、
kは1~3である。]、または
CH2=C(−R12)−C(=O)−O−(CH2)m−Z−R11
[ここで、R11、R12およびZは上記と同意義、mは1~20の数である。]
で示される炭化水素基・水素結合部位含有アクリル単量体から形成された繰り返し単位を有する請求項5に記載の耐油剤。 - 非フッ素重合体が、式:
CH2=C(−R22)−C(=O)−Y21−(R23)o(R21)m
または
CH2=C(−R32)−Y31−(H)5−n(R31)n
[式中、R21およびR31は、それぞれ独立的に反応性基または親水性基であり、
R22およびR32は、水素原子、一価の有機基、またはフッ素原子を除くハロゲン原子であり、
Y21は、直接結合、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)であり、
R23は、直接結合、または2~4価の炭素数1~10の炭化水素基(置換基を有する炭化水素部位を含んでもよい)を有する基であり、
Y31はベンゼン環であり、
Hは水素原子であり、
HおよびR31はY31にそれぞれ直接結合しており、
mおよびnは1~3であり、
oは、0または1である。]
で示される反応性/親水性単量体
および/または、式:
CH2=CR42−C(=O)−O−(RO)n−X41
[式中、X41は、水素原子または炭素数1~22の不飽和もしくは飽和の炭化水素基であり、
R42は、水素原子またはメチル基であり、
Rは、炭素数2~6のアルキレン基であり、
nは、1~90の整数である。]
で示される、反応性/親水性単量体から形成された繰り返し単位を有する請求項6に記載の耐油剤。 - 非フッ素重合体が、式:
または
[式中、R51およびR61は、それぞれ独立的に直接結合、炭素数1~20の炭化水素基(置換基を有する炭化水素部位を含んでもよい)、−(CH2CH2O)r−(rは1~10の整数)、−C6H4−、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)から選ばれる少なくとも1つ以上で構成される2~4価の基であり、
R52およびR62は、それぞれ独立的に水素原子、一価の有機基、またはフッ素原子を除くハロゲン原子であり、
Y51は、−O−、または−NR’−(R’は、Hまたは炭素数1~4の炭化水素基)であり、
pは、2~4であり、
qは1~5である。]
で示される架橋性単量体から形成された繰り返し単位を有する請求項6または7に記載の耐油剤。 - 架橋剤を含んでなる請求項5~8のいずれかに記載の耐油剤。
- 請求項5~9のいずれかに記載の耐油剤、および水または水と有機溶媒の混合物である液状媒体を含んでなる耐油剤組成物。
- さらに乳化剤(分散剤)を含む請求項10に記載の耐油剤組成物。
- 紙用耐油剤組成物である請求項10または11に記載の耐油剤組成物。
- 請求項1~12のいずれかに記載の非フッ素化合物、耐油剤または耐油剤組成物を紙に適用する耐油紙の処理方法。
- 請求項1~4のいずれかに記載の非フッ素化合物または請求項5~9のいずれかに記載の耐油剤における非フッ素化合物が付着している耐油紙。
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| CN202280021855.5A CN117043200A (zh) | 2021-03-31 | 2022-03-31 | 含氢键部位的耐油性化合物 |
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| EP4317213A4 (en) | 2025-04-02 |
| TW202248238A (zh) | 2022-12-16 |
| EP4317213A1 (en) | 2024-02-07 |
| KR20230107888A (ko) | 2023-07-18 |
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