WO2021161593A1 - 含フッ素重合体を有効成分とする柔軟性撥水撥油剤 - Google Patents
含フッ素重合体を有効成分とする柔軟性撥水撥油剤 Download PDFInfo
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- WO2021161593A1 WO2021161593A1 PCT/JP2020/041315 JP2020041315W WO2021161593A1 WO 2021161593 A1 WO2021161593 A1 WO 2021161593A1 JP 2020041315 W JP2020041315 W JP 2020041315W WO 2021161593 A1 WO2021161593 A1 WO 2021161593A1
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- oil
- repellent
- meth
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- flexible water
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- YCOZIPAWZNQLMR-UHFFFAOYSA-N heptane - octane Natural products CCCCCCCCCCCCCCC YCOZIPAWZNQLMR-UHFFFAOYSA-N 0.000 description 1
- PGFXOWRDDHCDTE-UHFFFAOYSA-N hexafluoropropylene oxide Chemical compound FC(F)(F)C1(F)OC1(F)F PGFXOWRDDHCDTE-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229940043265 methyl isobutyl ketone Drugs 0.000 description 1
- 229940057867 methyl lactate Drugs 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229940094933 n-dodecane Drugs 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- XNTUJOTWIMFEQS-UHFFFAOYSA-N octadecanoyl octadecaneperoxoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCCCCCCCC XNTUJOTWIMFEQS-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- MMCOUVMKNAHQOY-UHFFFAOYSA-L oxido carbonate Chemical compound [O-]OC([O-])=O MMCOUVMKNAHQOY-UHFFFAOYSA-L 0.000 description 1
- GXOHBWLPQHTYPF-UHFFFAOYSA-N pentyl 2-hydroxypropanoate Chemical compound CCCCCOC(=O)C(C)O GXOHBWLPQHTYPF-UHFFFAOYSA-N 0.000 description 1
- 229960004624 perflexane Drugs 0.000 description 1
- ZJIJAJXFLBMLCK-UHFFFAOYSA-N perfluorohexane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F ZJIJAJXFLBMLCK-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 description 1
- YPVDWEHVCUBACK-UHFFFAOYSA-N propoxycarbonyloxy propyl carbonate Chemical compound CCCOC(=O)OOC(=O)OCCC YPVDWEHVCUBACK-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
- C09D133/16—Homopolymers or copolymers of esters containing halogen atoms
-
- 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
- C08F214/00—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 a halogen
- C08F214/18—Monomers containing fluorine
-
- 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
- C08F220/22—Esters containing halogen
- C08F220/24—Esters containing halogen containing perhaloalkyl radicals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/18—Materials not provided for elsewhere for application to surfaces to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/26—Elastomers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2321/00—Characterised by the use of unspecified rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2433/14—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
- C08J2433/16—Homopolymers or copolymers of esters containing halogen atoms
Definitions
- the present invention relates to a flexible water-repellent oil-repellent agent containing a fluorine-containing polymer as an active ingredient. More specifically, flexible water repellency containing a fluorine-containing polymer, which is a copolymer of a (meth) acrylic acid derivative containing a perfluoroalkyl group having 6 or less carbon atoms, which is said to have low bioaccumulation, as an active ingredient. Regarding oil repellents.
- the expression of water and oil repellency of the perfluoroalkyl group [Rf] -containing (meth) acrylate in the surface treatment agent of the base material is due to the orientation of the Rf group in the treatment film, and the Rf group is further oriented. It is said that it is necessary that the melting point of the microcrystal derived from the Rf group (8 or more carbon atoms) exists, and therefore, it contains a perfluoroalkyl group having a perfluoroalkyl group having 8 or more carbon atoms (meth). It is stated that acrylates have been used.
- telomer compounds currently used as raw materials for surface modifiers such as water and oil repellents
- compounds having a perfluoroalkyl group having 8 or more carbon atoms may become PFCA in the environment.
- a compound having a perfluoroalkyl group having 6 or less carbon atoms is said to have low bioaccumulation, but a compound having a perfluoroalkyl group having 6 or less carbon atoms is a flexible water-repellent oil-repellent agent. It is said that it is difficult to obtain the performance required for such products.
- the conventional water- and oil-repellent coating agent has no flexibility in the film formed from it, and cracks occur due to a slight impact or pressure, so that the usage is limited.
- An object of the present invention is to provide a flexible water-repellent oil-repellent agent in which a film formed from a coating agent adheres to and follows the deformation of rubber or resin and exhibits water-repellent and oil-repellent properties.
- Perfluoropolyether alcohol (meth) acrylic acid derivative represented by (where R 1 is a hydrogen atom or a methyl group and n is an integer of 1 to 20) and the general formula CH 2 CR 1 COOR 2 [II] (Here, R 1 is a hydrogen atom or a methyl group, and R 2 is an alkyl group, an alkoxyalkyl group, a cycloalkyl group, an aryl group or an aralkyl group), and the glass transition temperature Tg is 51 to 120 ° C. It is achieved by a flexible water-repellent oil-repellent agent containing a copolymer of a (meth) acrylic acid ester as an active ingredient.
- (meth) acrylic acid means acrylic acid or methacrylic acid.
- the film formed from the coating agent adheres to and follows the deformation of rubber or resin, exhibits water-repellent oil-repellent property, and is tack-free even in a tack property test.
- the fluorine-containing copolymer used in the present invention has many ether bonds that lower the glass transition temperature Tg during copolymer formation, it is possible to form a flexible film and its surface energy is very small. It is possible to sufficiently exhibit the performance required for a water-repellent oil-repellent agent such as water-repellent oil-repellent property, mold release property, and antifouling property.
- the water- and oil-repellent agent of the present invention contains a copolymer of a perfluoropolyether alcohol (meth) acrylic acid derivative represented by the following formula [I] and a (meth) acrylic acid ester represented by the following [II] as an active ingredient. do.
- R 1 Hydrogen atom or methyl group, preferably methyl group n: an integer of 1 to 20, preferably an integer of 1 to 4
- CH 2 CR 1 COOR 2
- R 1 Hydrogen atom or methyl group, preferably methyl group
- R 2 Alkyl group, alkoxyalkyl group, cycloalkyl group, Aryl group, aralkyl group, preferably alkyl group
- the perfluoropolyether alcohol (meth) acrylic acid derivative [I] is a known compound and is described in, for example, Patent Document 1.
- perfluoropolyether alcohol derived from hexafluoropropylene oxide C 3 F 7 O [CF (CF 3 ) CF 2 O] n CF (CF 3 ) CH 2 OH is esterified with (meth) acrylic acid halide.
- the following compounds produced by reaction are exemplified.
- the (meth) acrylic acid ester [II] must have a glass transition temperature Tg (measured according to JIS K7121 corresponding to ISO 3146) of 51 to 120 ° C, preferably 65 to 105 ° C, for example, methacrylic acid.
- Tg glass transition temperature
- Methyl (Tg: 105 ° C), ethyl methacrylate (Tg: 65 ° C) and the like are used.
- (meth) acrylic acid esters [II] are used in a proportion of about 5 to 30% by weight, preferably about 5 to 10% by weight in the copolymer. If the copolymerization ratio of (meth) acrylic acid ester [II] is smaller than this, the softening effect is not exhibited, while if it is used in a larger ratio than this, the water and oil repellency becomes inferior.
- the copolymerization reaction is also carried out by an emulsion polymerization method or a turbidity polymerization method, but is preferably carried out by a solution polymerization method.
- the reaction solvent of the solution polymerization method is not particularly limited as long as it is a solvent in which the fluorine-containing copolymer dissolves, but an organic solvent having a fluorine atom is preferable.
- the polymerization reaction is carried out in a fluorine-containing organic solvent such as hydrofluoroether.
- hydrofluorocarbons and hydrofluoro ethers are also used.
- Hydrofluorocarbon CF 3 (CF 2 ) 2 CHF 2 , CF 3 (CF 2 ) 2 CH 2 F, CF 3 CF 2 CH 2 CF 3 , F 2 CH (CF 2 ) 2 CHF 2 , F 2 CHCH 2 CF 2 CF 3 , CF 3 CHFCH 2 CF 3 , CF 3 CH 2 CF 2 CHF 2 , F 2 CHCHFCF 2 CHF 2 , CF 3 CHFCF 2 CH 3 , F 2 CH (CHF) 2 CHF 2 , CF 3 CH 2 CF 2 CH 3 , F 2 CHCH 2 CF 2 CH 3 , F 2 CH (CF 2 ) 3 CF 3 , F 2 CHCH 2 CF 2 CH 3 , F 2 CH (CF 2 ) 3 CF 3 , CF 3 (CF 2 ) 2 CHFCF 3 , F 2 CH (CF 2 ) 3 CHF 2 , CF 3 (CF 2 ) 2 CHFCF 3 , F 2 CH (CF 2 ) 3 CHF 2
- Hydrofluoroether CF 3 CF 2 CF 2 OCH 3 , (CF 3 ) 2 CFOCH 3 , CF 3 (CF 2 ) 2 OCH 2 CH 3 , CF 3 (CF 2 ) 3 OCH 3 , (CF 3 ) 2 CFCF 2 OCH 3 , C (CF 3 ) 3 OCH 3 , CF 3 (CF 2 ) 3 OCH 2 CH 3 , (CF 3 ) 2 CFCF 2 OCH 2 CH 3 , (CF 3 ) 3 COCH 2 CH 3 , CF 3 CF ( OCH 3 ) CF (CF 3 ) 2 , CF 3 CF (OCH 2 CH 3 ) CF (CF 3 ) 2 , C 5 F 11 OCH 2 CH 3 , CF 3 (CF 2 ) 2 CF (OCH 2 CH 3 ) CF (CF 3 ) 2 , CH 3 O (CF 2 ) 4 OCH 3 , CH 3 O (CF 2 ) 2 OCH 2 CH 3 , C 3 H 7 OCF
- the solubility of the perfluoropolyether alcohol (meth) acrylic acid ester in a fluorine-containing organic solvent is not good, it is preferable to mix it with an alcohol.
- the alcohol is not particularly limited, but the obtained fluorine-containing copolymer is soluble, has good compatibility with a fluorine-containing organic solvent, and is compatible with a perfluoropolyether alcohol (meth) acrylic acid derivative. Is preferable.
- isopropyl alcohol or the like is used as such alcohol.
- aliphatic hydrocarbons Similar to alcohol, aliphatic hydrocarbons, alicyclic hydrocarbons, aromatic hydrocarbons, esters, ketones, etc. can also be used.
- Aliphatic hydrocarbons n-pentane, 2-methylbutane, n-hexane, 3-methylpentane, 2,2-dimethylbutane, 2,3-dimethylbutane, n-heptane, n-octane, 2,2,4- Trimethylpentane, n-nonane, 2,2,3-trimethylhexane, n-decane, n-undecane, n-dodecane, 2,2,4,6,6-pentamethylheptane, n-tridecane, n-tetradecane, Alicyclic hydrocarbons such as n-hexadecan: cyclopentane, cyclohexane, methylcyclohexane, ethylcyclohexane, etc.
- Aromatic hydrocarbons benzene, toluene, xylene, 1,4-bis (trifluoromethyl) benzene, 1,3-bis ( Trifluoromethyl) benzene, etc.
- Esters methyl acetate, ethyl acetate, butyl acetate, methyl propionate, methyl lactate, ethyl lactate, pentyl lactate, etc.
- Ketones acetone, methyl ethyl ketone, 2-pentanone, 3-pentanone, 2-hexanone, methylisobutyl Ketone, etc.
- the weight ratio of each charged monomer is approximately the copolymerization composition weight ratio of the produced copolymer.
- ethylenically unsaturated monomers such as styrene, ⁇ -methylstyrene, vinyltoluene, vinylnaphthalene, (meth) acrylonitrile, acrylic acid amide, vinyl acetate, etc.
- Ethylene, propylene, piperylene, butadiene, isoprene, pentadiene and the like can be copolymerized at a ratio that does not impair the flexibility of the copolymer of the present invention.
- a polyfunctional (meth) acrylate or oligomer having a glycol residue in the side chain for example, ethylene glycol, propylene glycol, 1,4- Di (meth) acrylate of alkylene glycol such as butanediol, 1,6-hexanediol, 1,9-nonanediol, di (meth) acrylate such as neopentyl glycol, tetraethylene glycol, tripropylene glycol, polypropylene glycol, bisphenol A.
- Ethylene oxide adduct diacrylate, dimethylol tricyclodecane diacrylate, glycerin methacrylate acrylate, 3-acryloyloxyglycerin monomethacrylate and the like can be further copolymerized and used.
- the initiator used in a ratio of about 0.1 to 4% by weight, preferably about 1 to 2% by weight, based on the total amount of the comonomono, diacyl peroxide, peroxycarbonate, peroxyester or the like is used, and concretely These include isobutyryl peroxide, lauroyl peroxide, stearoyl peroxide, succinic acid peroxide, bis (heptafluorobutyryl) peroxide, pentafluorobutyroyl peroxide, and bis (4-thbutylcyclohexyl) peroxydi.
- Organic peroxides such as carbonate, di-n-propylperoxydicarbonate, and diisopropylperoxydicarbonate are used, and azo compounds, inorganic peroxides, or redox systems thereof are also used depending on the polymerization reaction.
- the polymerization initiator may be added and used again in the middle of the polymerization reaction.
- a chain transfer agent can be used as needed to adjust the molecular weight.
- the chain transfer agent include dimethyl ether, methyl tertiary butyl ether, alkanes having 1 to 6 carbon atoms, methanol, ethanol, and 2 -Propanol, cyclohexane, carbon tetrachloride, chloroform, dichloromethane, methane, ethyl acetate, ethyl malonate, acetone and the like can be mentioned.
- the copolymerization reaction is carried out using these reaction solvents, reaction initiators, etc., preferably at a reaction temperature of about 60 to 80 ° C. for about 10 to 24 hours. After completion of the reaction, a copolymer solution having a solid content concentration of about 5 to 40% by weight is obtained, and a fluorine-containing copolymer is obtained by removing the solvent from this reaction mixture.
- the perfluoropolyether alcohol (meth) acrylic acid derivative [I] used in the copolymerization reaction was confirmed to be almost completely copolymerized as a result of gas chromatography analysis of the unreacted residual comonomer. Will be done.
- the method for producing a copolymer of a polyfluoroalkyl alcohol (meth) acrylic acid derivative is not limited to such a solution polymerization method, and is turbidity containing, for example, water as a dispersion medium and a nonionic surfactant and / or a cationic surfactant.
- a polymerization method, an emulsion polymerization method and the like are also used.
- the copolymer of the polyfluoroalkyl alcohol (meth) acrylic acid derivative thus obtained is separated by a method of evaporating to dryness, a method of adding a flocculant such as an inorganic salt to coagulate, and washing with a solvent or the like. Purify by the method of The weight average molecular weight Mw of the obtained copolymer is shown by high performance liquid chromatography, and its value is about 2,000 to 2,000,000.
- the polymer solution obtained by the solution polymerization method is further used for a fluorine-containing organic solvent such as 1,4-bis (trifluoromethyl) benzene and 1,3-bis (trifluoromethyl) benzene, preferably for a polymerization reaction. It is used as a coating agent after being diluted with the same fluorine-containing organic solvent as the above to have a solid content concentration of about 0.01 to 30% by weight, preferably about 0.05 to 15% by weight.
- a turbid polymerization method, etc. it can be used as it is or after diluting the solid content concentration with water to about 0.1 to 10% by weight as an aqueous dispersion.
- an aqueous dispersion is prepared by adding a flocculant to the polymerization reaction solution to coagulate the polymer, washing the polymer with water or an organic solvent, and dissolving the separated copolymer in water or in a fluorine-containing organic solvent.
- a flocculant to the polymerization reaction solution to coagulate the polymer
- washing the polymer with water or an organic solvent and dissolving the separated copolymer in water or in a fluorine-containing organic solvent.
- an organic solvent solution Coating agents can also be prepared.
- a liquid containing 20% by weight or less of a surfactant and a water-soluble organic solvent is preferably used as the aqueous dispersion.
- additives include a cross-linking agent such as melamine resin, urea resin and blocked isocyanate, a polymer extender and silicone.
- Additives necessary for applications such as resins, other water repellents such as oils and waxes, insect repellents, antistatic agents, dye stabilizers, wrinkle repellents, and stain blockers can be added.
- the copolymer solution thus obtained is effectively applied as a water and oil repellent to various rubber products, elastic resin products and the like.
- coating, dipping, spraying, padding, roll coating or a combination method thereof is generally used.
- the material to be treated is padded in this pad bath, and if necessary, the excess liquid is removed by a drawing roll and dried so that the amount of the adhered fluorine-containing copolymer with respect to the material to be treated is about 0.01 to 10% by weight. Attach to. After that, although it depends on the type of the material to be treated, it is generally dried at a temperature of about 100 to 200 ° C. for about 1 minute to about 2 hours, and the water-repellent and oil-repellent treatment is completed.
- Example 3 In Example 2, 0.73 g of ethyl methacrylate (Tg: 65 ° C.) was used instead of methyl methacrylate. The amount of solvent was changed to 18.35 g and the amount of polymerization initiator was changed to 44.0 mg, respectively, and a polymerization reaction solution having a solid content concentration of 31.3% by weight was obtained.
- Tg 65 ° C.
- Example 4 In Example 2, the amount of PO-3-MAC was changed to 8.26 g, and 54.8 mg of 2-[(3,5-dimethylpyrazolyl) carbonylamino] ethyl methacrylate [Showa Denko products Karenz MOI-BP] was a crosslinkable monomer. Was used as. The amount of the solvent was changed to 18.26 g and the amount of the polymerization initiator was changed to 44.7 mg, respectively, and a polymerization reaction solution having a solid content concentration of 31.9% by weight was obtained.
- Example 2 28.1 mg of 2-hydroxyethyl acrylate [2HEA] was additionally used as a crosslinkable monomer.
- the amount of solvent was changed to 18.21 g and the amount of polymerization initiator was changed to 44.6 mg, but since 2HEA has low compatibility with the solvent Novec 7300, the product becomes cloudy and solidified, and various characteristics can be measured. There wasn't.
- Example 4 Comparative Example 4 In Example 1, 0.82 g of n-butyl acrylate (Tg: -49 ° C.) was used instead of methyl methacrylate. Although the amount of solvent was changed to 18.09 g, the product was a liquid product having no solid content, and various properties could not be measured.
- Tg -49 ° C.
- Example 2 Comparative Example 5 In Example 2, 0.91 g of n-butyl methacrylate (Tg: 20 ° C.) was used instead of methyl methacrylate. The amount of solvent was changed to 17.91 g, and a polymerization reaction solution having a solid content concentration of 27.6% by weight was obtained.
- Tg 20 ° C.
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Abstract
Description
CH2=CR1COOCH2CF(CF3)〔OCF2CF(CF3)〕nOC3F7 〔I〕
(ここで、R1は水素原子またはメチル基であり、nは1~20の整数である)で表されるパーフルオロポリエーテルアルコール(メタ)アクリル酸誘導体および一般式
CH2=CR1COOR2 〔II〕
(ここで、R1は水素原子またはメチル基であり、R2はアルキル基、アルコキシアルキル基、シクロアルキル基、アリール基またはアラルキル基である)で表され、ガラス転移温度Tgが51~120℃である(メタ)アクリル酸エステルの共重合体を有効成分とする柔軟性撥水撥油剤によって達成される。ここで、(メタ)アクリル酸はアクリル酸またはメタクリル酸を意味する。
CH2=CR1COOCH2CF(CF3)〔OCF2CF(CF3)〕nOC3F7 〔I〕
R1:水素原子またはメチル基、好ましくはメチル基
n:1~20の整数、好ましくは1~4の整数
CH2=CR1COOR2 〔II〕
R1:水素原子またはメチル基、好ましくはメチル基
R2:アルキル基、アルコキシアルキル基、シクロアルキル基、
アリール基、アラルキル基、好ましくはアルキル基
CH2=CR1COOCH2CF(CF3)〔OCF2CF(CF3)〕OC3F7
CH2=CR1COOCH2CF(CF3)〔OCF2CF(CF3)〕2OC3F7
CH2=CR1COOCH2CF(CF3)〔OCF2CF(CF3)〕3OC3F7
CH2=CR1COOCH2CF(CF3)〔OCF2CF(CF3)〕4OC3F7
好ましくは、
CH2=CHCOOCH2CF(CF3)〔OCF2CF(CF3)〕OC3F7
CH2=C(CH3)COOCH2CF(CF3)〔OCF2CF(CF3)〕OC3F7
が用いられる。
脂環式炭化水素:シクロペンタン、シクロヘキサン、メチルシクロヘキサン、エチルシクロヘキサン等
芳香族炭化水素:ベンゼン、トルエン、キシレン、1,4-ビス(トリフルオロメチル)ベンゼン、1,3-ビス(トリフルオロメチル)ベンゼン等
エステル:酢酸メチル、酢酸エチル、酢酸ブチル、プロピオン酸メチル、乳酸メチル、乳酸エチル、乳酸ペンチル等
ケトン:アセトン、メチルエチルケトン、2-ペンタノン、3-ペンタノン、2-ヘキサノン、メチルイソブチルケトン等
水系の乳化重合法、けん濁重合法などによって得られる重合物については、そのままあるいは水で固形分濃度を約0.1~10重量%に希釈した上で水性分散液として、
または重合反応液に凝集剤を添加して重合物を凝集させ、水または有機溶媒で洗浄して分離された共重合体を水に分散または含フッ素有機溶媒に溶解させることにより、その水性分散液または有機溶媒溶液として、
コーティング剤を調製することもできる。水性分散液としては、好ましくは界面活性剤および水溶性有機溶媒を20重量%以下含有させたものが用いられる。
コンデンサおよび温度計を備えた容量50mlのガラス製反応容器に、
CH2=CHCOOCH2CF(CF3)〔OCF2CF(CF3)〕OC3F7 〔PO-3-AC〕 8.04g
CH2=C(CH3)COOCH3 (Tg:105℃) 0.64g
溶媒(3M社製品Novec7300;C4F9OCH3) 17.72g
アゾビスイソブチロニトリル 44.3mg
を仕込み、攪拌しながら70℃で21時間共重合反応を行い、固形分濃度28.6重量%の重合反応溶液を得た。
柔軟性試験方法:
試験サンプルを引張試験機で10~80%引き伸ばし、その途中経過
をマイクロスコープを用いて観察し、被膜の亀裂などの観察を行
い、次のような段階評価を行った。
◎:0%戻り時、亀裂、しわはない
+40%引き伸ばし時、亀裂はない
○:0%戻り時、亀裂、しわはない
+20%引き伸ばし時、亀裂はない
△:0%戻り時、亀裂、しわはない
+10%引き伸ばし時、亀裂はない
×:0%戻り時、亀裂、しわあり
撥水撥油試験方法:
試験サンプルについて、協和界面科学製Dropmaster DM500を用い
、接触角測定法で行った。試験液は、水またはヘキサデカンの2
種類が用いられた。段階評価は、次の如くである。
撥水試験(純水)
◎:接触角110°以上
○:接触角105°~109°
△:接触角100°~104°
×:接触角99°以下
撥油試験(ヘキサデカン)
◎:接触角70°以上
○:接触角65°~69°
△:接触角60°~64°
×:接触角59°以下
タック性試験方法:
試験サンプルを指で軽く触ったときの被膜の状態を、次の評価段
階で評価した。
◎:タックフリー
○:指紋が残る程度
△:若干の粘着感がある
×:糸を引く程度
実施例1において、PO-3-ACの代わりに、
CH2=C(CH3)COOCH2CF(CF3)〔OCF2CF(CF3)〕OC3F7 〔PO-3-MAC〕
が8.25g用いられた。また、溶媒量は18.15gに、重合開始剤量は44.2mgにそれぞれ変更され、固形分濃度31.3重量%の重合反応溶液が得られた。
実施例2において、メチルメタクリレートの代わりに、エチルメタクリレート(Tg:65℃)が0.73g用いられた。また溶媒量は18.35gに、重合開始剤量は44.0mgにそれぞれ変更され、固形分濃度31.3重量%の重合反応溶液が得られた。
実施例2において、PO-3-MAC量が8.26gに変更され、さらに2-〔(3,5-ジメチルピラゾリル)カルボニルアミノ〕エチルメタクリレート〔昭和電工製品 カレンズMOI-BP〕54.8mgが架橋性モノマーとして用いられた。また、溶媒量は18.26gに、重合開始剤量は44.7mgにそれぞれ変更され、固形分濃度31.9重量%の重合反応溶液が得られた。
実施例1において、PO-3-ACの代わりに、
CH2=CH(CH3)COOC5F10CH2C6F13 〔含フッ素系モノマー A〕
が10.73g用いられ、メチルメタクリレートは用いられなかった。また、溶媒量は21.83gに、重合開始剤量は37.1mgにそれぞれ変更され、固形分濃度33.0重量%の重合反応溶液が得られた。
実施例1において、PO-3-ACの代わりに、
CH2=CHCOOCH2CH2C6F13 〔FAMAC-6〕
が8.26g用いられ、メチルメタクリレートは用いられなかった。また、溶媒量は26.45gに、重合開始剤量は61.9mgにそれぞれ変更され、固形分濃度34.6重量%の重合反応溶液が得られた。
実施例2おいて、さらに架橋性モノマーとして2-ヒドロキシエチルアクリレート〔2HEA〕28.1mgが追加して用いられた。また、溶媒量は18.21gに、重合開始剤量は44.6mgにそれぞれ変更されたが、2HEAは溶媒Novec 7300との相溶性が低いため、生成物は白濁固化して、諸特性の測定ができなかった。
実施例1において、メチルメタクリレートの代わりに、n-ブチルアクリレート(Tg:-49℃)が0.82g用いられた。また、溶媒量は18.09gに変更されたが、生成物は固形分を有しない液状物であり、諸特性の測定ができなかった。
実施例2において、メチルメタクリレートの代わりに、n-ブチルメタクリレート(Tg:20℃)が0.91g用いられた。また、溶媒量は17.91gに変更され、固形分濃度27.6重量%の重合反応溶液が得られた。
表
例 柔軟性試験 撥水試験 撥油試験 タック性試験
実施例1 ◎ ◎ ◎ △
〃 2 ○ ◎ ○ ◎
〃 3 ○ ◎ ◎ ◎
〃 4 ○ ○ ○ ◎
比較例1 × ◎ ◎ ◎
〃 2 × ◎ ◎ ◎
〃 5 × ◎ ○ ○
Claims (10)
- 一般式
CH2=CR1COOCH2CF(CF3)〔OCF2CF(CF3)〕nOC3F7 〔I〕
(ここで、R1は水素原子またはメチル基であり、nは1~20の整数である)で表されるパーフルオロポリエーテルアルコール(メタ)アクリル酸誘導体および一般式
CH2=CR1COOR2 〔II〕
(ここで、R1は水素原子またはメチル基であり、R2はアルキル基、アルコキシアルキル基、シクロアルキル基、アリール基またはアラルキル基である)で表され、ガラス転移温度Tgが51~120℃である(メタ)アクリル酸エステルの共重合体を有効成分とする柔軟性撥水撥油剤。 - パーフルオロポリエーテルアルコール(メタ)アクリル酸誘導体〔I〕が
CH2=CHCOOCH2CF(CF3)〔OCF2CF(CF3)〕OC3F7 または
CH2=C(CH3)COOCH2CF(CF3)〔OCF2CF(CF3)〕OC3F7
である請求項1記載の柔軟性撥水撥油剤。 - ガラス転移温度51~120℃の(メタ)アクリル酸エステルがメタクリル酸メチルまたはメタクリル酸エチルである請求項1記載の柔軟性撥水撥油剤。
- (メタ)アクリル酸エステルが共重合体中5~30重量%の割合で共重合された請求項1記載の柔軟性撥水撥油剤。
- 有機溶媒溶液として調製された請求項1記載の柔軟性撥水撥油剤。
- 含フッ素有機溶媒溶液として調製された請求項5記載の柔軟性撥水撥油剤。
- ゴム製品に適用される請求項5または6記載の柔軟性撥水撥油剤。
- 弾力性樹脂製品に適用される請求項5または6記載の柔軟性撥水撥油剤。
- 請求項7記載の柔軟性撥水撥油剤で表面コーティングされたゴム製品。
- 請求項8記載の柔軟性撥水撥油剤で表面コーティングされた弾力性樹脂製品。
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CN202080095211.1A CN115052943A (zh) | 2020-02-10 | 2020-11-05 | 以含氟聚合物作为有效成分的柔软性防水防油剂 |
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