WO2017179316A1 - 塗膜、塗膜用組成物、製膜剤、塗膜を有する物品、及び塗膜形成方法 - Google Patents
塗膜、塗膜用組成物、製膜剤、塗膜を有する物品、及び塗膜形成方法 Download PDFInfo
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- WO2017179316A1 WO2017179316A1 PCT/JP2017/007251 JP2017007251W WO2017179316A1 WO 2017179316 A1 WO2017179316 A1 WO 2017179316A1 JP 2017007251 W JP2017007251 W JP 2017007251W WO 2017179316 A1 WO2017179316 A1 WO 2017179316A1
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- coating film
- mass
- calcium carbonate
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- 0 CCN(C)N*C Chemical compound CCN(C)N*C 0.000 description 1
Classifications
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/42—Applications of coated or impregnated materials
-
- 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
- C09D129/00—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 an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
- 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
- C09D133/18—Homopolymers or copolymers of nitriles
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/68—Particle size between 100-1000 nm
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/69—Particle size larger than 1000 nm
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Definitions
- the present invention relates to a coating film, a coating composition, a film-forming agent, an article having a coating film, and a method for forming a coating film. More specifically, the present invention relates to a coating film having excellent water and oil repellency, a coating film composition, a film forming agent, an article having a coating film, and a coating film forming method.
- Patent Document 1 discloses a method using metal oxide fine particles coated with a specific fluorine resin
- Patent Document 2 discloses a binder such as a silicone resin, fine particles such as silica, and a repellent material such as a fluorine compound.
- a method using a compound composed of a water / oil repellent compound Patent Document 3 discloses a method using a silica having a specific particle diameter dispersed in a fluorine resin
- Patent Document 4 discloses an aggregate and a fluorine resin.
- a method using a material such as the above is disclosed.
- the present invention provides a coating film exhibiting excellent water and oil repellency, a coating film composition or film-forming agent capable of forming the coating film, an article having the coating film, and the
- the main object is to provide a method for forming a coating film.
- the present inventors have intensively studied to solve the above problems.
- (a) calcium carbonate having an average particle size of 600 nm to 9000 nm, (b) polyvinyl alcohol, and (c) a copolymer containing a monomer having a perfluoroalkyl group having 6 or less carbon atoms as a constituent unit is included. It has been found that the coating film exhibits excellent water and oil repellency and exhibits an excellent water and oil repellency effect for, for example, foods having high viscosity.
- the present invention has been completed by further studies based on these findings.
- Item 1 (A) calcium carbonate having an average particle size of 600 nm to 9000 nm, A coating film comprising (b) polyvinyl alcohol, and (c) a copolymer containing a monomer having a perfluoroalkyl group having 6 or less carbon atoms in a structural unit.
- Item 2. Item 2. The coating film according to Item 1, wherein the saponification degree of the (b) polyvinyl alcohol is 97 mol% or more.
- Item 3. Item 3.
- Item 4. (A) a first layer containing calcium carbonate having an average particle size of 600 to 9000 nm and (b) polyvinyl alcohol; (C) a second layer containing a copolymer containing a monomer having a perfluoroalkyl group having 6 or less carbon atoms in a structural unit; Item 4.
- (A) calcium carbonate having an average particle size of 600 to 9000 nm The composition for coating films containing the copolymer which contains (b) polyvinyl alcohol and (c) the monomer which has a C6 or less perfluoroalkyl group in a structural unit.
- Item 6. The coating film composition according to Item 5, wherein the saponification degree of the (b) polyvinyl alcohol is 97 mol% or more.
- Item 7. Item 7.
- A a first agent comprising calcium carbonate having an average particle size of 600 nm to 9000 nm, and (b) polyvinyl alcohol, (C) a second agent containing a copolymer containing a monomer having a perfluoroalkyl group having 6 or less carbon atoms in a structural unit; A film-forming agent.
- Item 10. An article comprising the coating film according to any one of items 1 to 4 on at least a part of a surface thereof. Item 11. Item 11. The article according to Item 10, wherein the surface is formed of paper, plastic, glass, or metal. Item 12. Item 12. The article according to Item 10 or 11, which is a packaging material. Item 13. Item 5.
- Item 14 A method of forming the coating film according to item 4 on the surface of an article, (A) applying a first agent containing calcium carbonate having an average particle diameter of 600 to 9000 nm and (b) polyvinyl alcohol to the surface of an article and drying to form a first layer; , From above the first layer, (c) a second agent containing a copolymer containing a monomer having a perfluoroalkyl group having 6 or less carbon atoms as a constituent unit is applied and dried to form a second layer. Forming step 2; A method for forming a coating film.
- Item 15 A method of forming a coating film on the surface of an article, Item 9. A method for forming a coating film comprising a step of applying the coating film composition according to any one of Items 5 to 8 to a surface of an article and then drying the composition.
- a coating film exhibiting excellent water and oil repellency can be provided. Furthermore, according to the present invention, it is also possible to provide a coating film composition or film-forming agent capable of forming the coating film, an article having the coating film, and a method for forming the coating film.
- Coating the coating present invention (a) calcium carbonate having an average particle diameter of 600 nm ⁇ 9000 nm, the (b) polyvinyl alcohol, and (c) structural units of a monomer having a perfluoroalkyl group having a carbon number of 6 or less It contains the copolymer which contains.
- the coating film of the present invention can exhibit excellent water and oil repellency by including these components (a), (b), and (c).
- “(a) calcium carbonate having an average particle diameter of 600 nm to 9000 nm” is defined as “component (a)”, “(b) polyvinyl alcohol” as “component (b)”, and “(c) carbon number”. May be referred to as “component (c)” or the like.
- (A) Calcium carbonate having an average particle size of 600 nm to 9000 nm contained in the coating film of the present invention is not particularly limited, and commercially available products can also be used. In the coating film of this invention, it becomes possible to exhibit the outstanding water / oil repellency because the average particle diameter of the calcium carbonate contained in a coating film exists in such a specific range.
- the type of calcium carbonate is not particularly limited, but is preferably at least one of porous calcium carbonate and agglomerated calcium carbonate from the viewpoint of exhibiting excellent water and oil repellency, and particularly BET specific surface area (ratio measured by gas adsorption method)
- the surface area is preferably 10 m 2 / g to 40 m 2 / g.
- whether or not the calcium carbonate particles become aggregated calcium carbonate depends on the shape, diameter, uniformity, presence / absence of surface treatment, and the like of the primary particles.
- the average particle diameter of calcium carbonate is a median diameter (D50) measured by a laser diffraction method, and what exists as a primary particle shows the particle diameter, and what aggregates shows the diameter of the aggregated particle.
- the BET specific surface area is a value measured by the BET method, that is, the amount of adsorption of nitrogen gas molecules whose adsorption occupation area is known.
- a more preferable range of the average particle diameter of the component (a) is 1000 nm to 8000 nm, and a particularly preferable range is 3000 nm to 7000 nm. Moreover, when it is agglomerated calcium carbonate, that whose primary particle diameter is not too small is preferable, and the thing of 160 nm or more is suitable.
- the content of (a) calcium carbonate having an average particle size of 600 nm to 9000 nm in the coating film of the present invention is not particularly limited, but is preferably 30% by mass to 80% from the viewpoint of exhibiting excellent water and oil repellency. About mass%, more preferably about 35 mass% to 75 mass%.
- Polyvinyl alcohol contained in the coating film of the present invention is not particularly limited, and known polyvinyl alcohol can be used. Since the coating film of the present invention exhibits excellent water and oil repellency and is excellent in durability, (b) polyvinyl alcohol is preferably a saponified body of polyvinyl acetate. From the same viewpoint, the saponification degree of (b) polyvinyl alcohol is preferably 97 mol% or more. (B) As polyvinyl alcohol, a commercial item can be used.
- the degree of polymerization of (b) polyvinyl alcohol is preferably about 100 to 2500, more preferably about 250 to 2000.
- the content of (b) polyvinyl alcohol in the coating film of the present invention is not particularly limited, but is preferably about 0.1 to 35% by mass, more preferably from the viewpoint of exhibiting excellent water and oil repellency. Is about 0.3% by mass to 25% by mass.
- Component (c) is a copolymer containing a monomer having a perfluoroalkyl group having 6 or less carbon atoms as a constituent unit.
- the monomer having a perfluoroalkyl group having 6 or less carbon atoms may be one type or two or more types.
- the component (c) is preferably an anionic copolymer.
- the monomer having a perfluoroalkyl group having 6 or less carbon atoms is not particularly limited as long as it is a monomer having a linear or branched perfluoroalkyl group containing 1 to 6 carbon atoms.
- Specific examples of the monomer having a perfluoroalkyl group having 6 or less carbon atoms preferably include a fluorine-containing (meth) acrylate monomer represented by the following general formula (c1).
- “(meth) acrylate” means “acrylate or methacrylate”, and similar expressions are also the same.
- the Rf group represents a linear or branched perfluoroalkyl group containing 1 to 6 carbon atoms.
- the A group is an aliphatic group having 1 to 10 carbon atoms, an aromatic group having 6 to 10 carbon atoms or a cyclic aliphatic group, an —SO 2 N (R 1 ) CH 2 CH 2 — group, where R 1 is An alkyl group having 1 to 4 carbon atoms) or —CH 2 CH (OZ 1 ) CH 2 — group (wherein Z 1 is a hydrogen atom or an acetyl group) or — (CH 2 ) m—SO 2 — (CH 2 ) n— group or — (CH 2 ) m—S— (CH 2 ) n— group (where m is 0 to 10 and n is 1 to 10).
- the B group represents —O— or —NH—.
- R 11 and R 12 one represents a hydrogen atom, the other represents a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms, a halogen atom, a CFX 1 X 2 group (provided that X 1 and X 2 are Each independently a hydrogen atom, a fluorine atom, or a chlorine atom), a cyano group, a linear or branched fluoroalkyl group containing 1 to 20 carbon atoms, a substituted or unsubstituted benzyl group Or a substituted or unsubstituted phenyl group.
- the Rf group is a perfluoro group in which all the hydrogen atoms of the alkyl group are substituted with fluorine atoms.
- the Rf group may be a straight chain structure or a branched structure.
- the number of carbon atoms in the Rf group is preferably 2 to 6, more preferably 4 to 6.
- Rf group examples include —CF 3 , —CF 2 CF 3 , —CF 2 CF 2 CF 3 , —CF (CF 3 ) 2 , —CF 2 CF 2 CF 2 CF 3 , —CF 2 CF (CF 3) 2, -C (CF 3 ) 3, - (CF 2) 4 CF 3, - (CF 2) 2 CF (CF 3) 2, -CF 2 C (CF 3) 3, -CF (CF 3) CF 2 CF 2 CF 3 , — (CF 2 ) 5 CF 3 , — (CF 2 ) 3 CF (CF 3 ) 2 and the like can be mentioned.
- — (CF 2 ) 5 CF 3 is particularly preferable.
- R 11 or R 12 is a halogen atom
- preferred halogen atoms include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
- the fluorine-containing (meth) acrylate monomer represented by the general formula (c1) is preferably a compound represented by the following formula.
- R ′ is a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms, a halogen atom, or a CFX 1 X 2 group (where X 1 and X 2 are each independently a hydrogen atom , A fluorine atom or a chlorine atom), a cyano group, a linear or branched fluoroalkyl group containing 1 to 20 carbon atoms, a substituted or unsubstituted benzyl group, or a substituted or unsubstituted group.
- a phenyl group in particular a hydrogen atom, a halogen atom or a methyl group;
- the Rf group is the same as the general formula (c1).
- the A group preferably does not contain S (sulfur atom) or N (nitrogen atom).
- an alkylene group is more preferable, and for example, a methylene group, an ethylene group, a propylene group, and the like are particularly preferable.
- fluorine-containing (meth) acrylate monomers represented by the general formula (c1) include compounds represented by the following formulas.
- the proportion of the portion of the monomer having a perfluoroalkyl group having 6 or less carbon atoms is not particularly limited, but preferably 55 masses when the total amount of the component (c) is 100 mass parts. To about 99 parts by mass, more preferably about 60 to 95 parts by mass, and still more preferably about 65 to 90 parts by mass.
- the monomer that can be copolymerized with a monomer having a perfluoroalkyl group having 6 or less carbon atoms can be any monomer that can be copolymerized with a monomer having a perfluoroalkyl group having 6 or less carbon atoms.
- the cation donating group include nitrogen-containing monomers represented by the following general formulas (c2-1-1) to (c2-1-3), preferably dimethylaminoethyl methacrylate, dimethylaminopropyl methacrylate, diethylaminoethyl Methacrylate, diethylaminopropyl methacrylate, N-tert-butylaminoethyl methacrylate, dimethylaminoethyl acrylate, dimethylaminopropyl acrylate, diethylaminoethyl acrylate, diethylaminopropyl acrylate, or N-tert-butylaminoethyl acrylate or a salt thereof, or N- It may be selected from the group consisting of oxides.
- the anion donor group may be a carboxyl group or a sulfonic acid group.
- L represents a linear or branched alkylene group containing 1 to 4 carbon atoms
- R 20 represents a hydrogen atom or a methyl group.
- R 21 , R 22 and R 23 are the same or different and are a hydrogen atom, a linear or branched alkyl group containing 1 to 18 carbon atoms, a hydroxyethyl group or a benzyl group, or R 21 And R 22 together represent a divalent organic group containing 2 to 30 carbon atoms, and X ⁇ represents an anionic group.
- the oxyalkylene group is represented by the following general formula (c2-2-1) or (c2-2-2), preferably 2-hydroxyethyl (meth) acrylate, ⁇ -hydroxy-polyoxyethylene (meth) acrylate (The average degree of polymerization (n) of the polyoxyethylene group is 2 to 10), polyoxyethylene di (meth) acrylate (the average degree of polymerization (n) of the polyoxyethylene group is 2 to 14), It may be selected from the group consisting of 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, methyl (meth) acrylate, and n-butyl (meth) acrylate.
- Each of the monomers containing a cation donating group, an anion donating group and an oxyalkylene group may be one kind or two or more kinds.
- T is a hydrogen atom or a methyl group
- U is an alkylene group having 2 to 6 carbon atoms
- V is a hydrogen atom or 1 to carbon atoms 22 unsaturated or saturated hydrocarbon groups
- q represents an integer of 1 to 90.
- the proportion of the portion constituting the monomer containing a cation donating group is not particularly limited. More preferably, about 1 to 30 parts by mass, and still more preferably 5 to 20 parts by mass.
- the proportion of the moiety constituting the monomer containing an anion-donating group is not particularly limited, but is preferably about 0 to 45 parts by mass, more preferably about 1 to 30 parts by mass, and even more preferably 5 parts by mass. Up to 20 parts by weight.
- the ratio of the portion constituting the monomer containing the oxyalkylene group is not particularly limited, but is preferably about 0 to 45 parts by weight, more preferably about 1 to 30 parts by weight, and even more preferably 5 parts by weight. Up to 20 parts by weight.
- the monomer copolymerized with a monomer having a perfluoroalkyl group having 6 or less carbon atoms includes a monomer containing a cation donating group, a monomer containing an anion donating group, and an oxyalkylene group
- Other monomer components (c3) other than the monomer to be copolymerized may be copolymerized.
- the other monomer component (c3) that is copolymerized with a monomer having a perfluoroalkyl group having 6 or less carbon atoms is not particularly limited.
- the ratio of the portion constituting the other monomer component (c3) is not particularly limited.
- a monomer having a perfluoroalkyl group having 6 or less carbon atoms and a monomer containing a cation donor group Preferably 0 parts by weight to 25 parts by weight, more preferably 0.1 parts by weight with respect to 100 parts by weight as a total of the parts composed of the monomer containing an anion-donating group and the monomer containing an oxyalkylene group About 15 parts by mass.
- the mass average molecular weight of the component (c) is not particularly limited, and examples thereof include about 2000 to 5000000, preferably about 3000 to 5000000, and more preferably about 10,000 to 1000000.
- the mass average molecular weight of a component (c) is calculated
- Component (c) can be produced by a usual polymerization method such as solution polymerization or emulsion polymerization.
- the conditions for the polymerization reaction can also be arbitrarily selected.
- the polymerization can be carried out by using at least one initiator, for example, in a proportion of 0.1% by mass to 2.0% by mass with respect to the total mass of the monomers.
- the initiator known ones can be used, for example, peroxides such as benzoyl peroxide, lauroyl peroxide, succinyl peroxide, tert-butyl perpivalate; 2,2-azobisisobutyronitrile, 4 , 4-azobis (4-cyanopentanoic acid), azo compounds such as azodicarbonamide, and the like can be used.
- peroxides such as benzoyl peroxide, lauroyl peroxide, succinyl peroxide, tert-butyl perpivalate; 2,2-azobisisobutyronitrile, 4 , 4-azobis (4-cyanopentanoic acid), azo compounds such as azodicarbonamide, and the like can be used.
- the polymerization can be carried out in the temperature range from 40 ° C. to the boiling point of the reaction mixture.
- the polymerization is preferably performed in a temperature range of 60 ° C to 90 ° C.
- Solution polymerization can be carried out in an organic solvent.
- organic solvent examples include those which are inert to the monomer and dissolve them, and include, for example, acetone, chloroform, HCHC225, N, N-dimethylformamide, isopropyl alcohol, pentane, hexane, heptane, octane, cyclohexane, benzene, Toluene, xylene, petroleum ether, tetrahydrofuran, 1,4-dioxane, methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, butyl acetate, 1,1,2,2-tetrachloroethane, 1,1,1-trichloroethane, trichloroethylene, perchloro Examples thereof include ethylene, tetrachlorodifluoroethane, trichlorotrifluoroethane, hydrofluoro
- the emulsion polymerization can be carried out in an aqueous medium.
- the aqueous medium means a liquid containing water and a volatile organic solvent content of 1% by mass or less. Specifically, water or an azeotrope containing water is preferable.
- the volatile organic solvent means an organic solvent such as alcohol that volatilizes at room temperature. Specifically, the organic solvent has a boiling point at 1 ⁇ 10 5 Pa (hereinafter simply referred to as “boiling point”) of 100 ° C. or less. It is a solvent. Note that a solvent that forms an azeotrope with water is not included in the volatile organic solvent.
- Component (c) can be self-emulsified to form an emulsion (particularly, an aqueous emulsion) even in the absence of an emulsifier, or can be dissolved in water to form an aqueous solution.
- the emulsion may contain an emulsifier, but it is preferable that the emulsion does not contain an emulsifier.
- the amount of the emulsifier is, for example, 0.01 to 40 parts by mass, particularly 0.1 to 20 parts by mass with respect to 100 parts by mass of the component (c).
- Component (c) functions as a water / oil repellent material.
- a commercial item can also be used as a component (c).
- an aqueous dispersion of component (c) is readily available, and such an aqueous dispersion may be used as component (c) for forming the coating film of the present invention.
- the amount of component (c) is calculated based on the content of the copolymer in the aqueous dispersion.
- the content of the component (c) in the coating film of the present invention is not particularly limited, but from the viewpoint of exhibiting excellent water and oil repellency, the mass of the copolymer is preferably 3% by mass to 60% by mass. About 4% by mass to 55% by mass, more preferably about 4% by mass.
- the coating film of the present invention comprises (a) calcium carbonate having an average particle diameter of 600 nm to 9000 nm, (b) polyvinyl alcohol, and (c) a monomer having a perfluoroalkyl group having 6 or less carbon atoms in a constituent unit. It may have a single layer structure in which the polymer is uniformly dispersed.
- the coating film of the present invention comprises (a) the first layer containing calcium carbonate having an average particle diameter of 600 to 9000 nm and (b) polyvinyl alcohol, and (c) the number of carbon atoms of 6 or less. And a second layer containing a copolymer containing a monomer having a perfluoroalkyl group as a constituent unit.
- a 1st layer is normally located in the surface side of articles
- the first layer does not include the component (c), may be formed of the component (a) and the component (b), and may further include the component (c).
- the second layer does not contain the component (a) and the component (b), and may be formed of the component (c) alone, and further includes at least one of the component (a) and the component (b). May be included.
- the coating amount of the coating film of the present invention is not particularly limited, but preferably about 1 g / m 2 to 50 g / m 2 , more preferably about 3 g / m 2 to 20 g / m 2 .
- the coating amount of the first layer is not particularly limited, but is preferably about 0.9 g / m 2 to 45 g / m 2 , more preferably 2.7 g. / M 2 to about 18 g / m 2 .
- the coating amount of the second layer is not particularly limited, but is preferably about 0.1 g / m 2 to 5 g / m 2 , more preferably about 0.3 g / m 2 to 2 g / m 2 .
- the coating film composition of the present invention comprises (a) calcium carbonate having an average particle diameter of 600 nm to 9000 nm, (b) polyvinyl alcohol, and (c) a perfluoroalkyl group having 6 or less carbon atoms. And a copolymer containing a monomer having a structural unit as a constituent unit.
- the types and contents of the components (a), (b) and (c) in the coating film composition of the present invention are the same as those of the coating film of the present invention described in detail in the section “1. It is. Further, the coating film composition of the present invention preferably contains a dispersion medium.
- the content of the dispersion medium in the coating film composition of the present invention is not particularly limited, but is preferably about 45% by mass to 90% by mass, more preferably about 65% by mass to 85% by mass. Note that this amount includes the amount of the dispersion medium contained in the dispersion when the component (c) is used in the form of the dispersion.
- the dispersion medium is not particularly limited, but preferably includes water, ethanol, isopropyl alcohol and the like, and particularly preferably water.
- the coating film composition of the present invention is preferably an aqueous dispersion of components (a), (b) and (c).
- the component (c) for example, an easily available commercially available aqueous dispersion can be used, and the coating composition of the present invention includes the aqueous dispersion and the component (a). , (B) can be suitably prepared.
- the compounding quantity of the component (c) in this case is calculated by the content of the copolymer in the aqueous dispersion.
- the component (a) is about 5% by mass to 30% by mass, more preferably about 10% by mass to 20% by mass, and particularly preferably 10% by mass to 15% by mass.
- the ratio of water as a dispersion medium in the aqueous dispersion is not particularly limited, but is preferably about 45 to 90% by mass, more preferably about 65 to 85% by mass.
- the coating amount of the coating film composition of the present invention on the coating object (article) is not particularly limited, and may be the coating amount of the coating film described above after drying. Moreover, the detail of the formation method of the coating film using the composition for coating films of this invention is as below-mentioned.
- the film-forming agent of the present invention comprises (a) a first agent containing calcium carbonate having an average particle diameter of 600 nm to 9000 nm, (b) polyvinyl alcohol, and (c) perfluoro having 6 or less carbon atoms. And a second agent containing a copolymer containing a monomer having an alkyl group as a constituent unit.
- the types and contents of the components (a), (b) and (c) in the film-forming agent of the present invention are the same as those of the coating film of the present invention described in detail in the section “1. .
- the film-forming agent of the present invention is a two-agent type film-forming agent comprising a first agent containing components (a) and (b) and a second agent containing component (c).
- the first agent is applied to the surface of the object to be applied (article), dried to form the first layer, and then from above the first layer.
- the second agent is applied and dried to form the second layer, so that the multilayer-structured coating film described in detail in the section “1.
- Coating film” can be suitably formed.
- the first agent and the second agent are uniformly mixed at the time of use, and the above-mentioned components (a), (b) and (c) are uniformly dispersed.
- a coating film may be formed.
- the content of the component (a) in the first agent is preferably about 5 to 30% by mass, more preferably about 10 to 20% by mass, and particularly preferably about 10 to 15% by mass. It is done.
- the content of the component (b) in the first agent is preferably about 0.1 to 15% by mass, more preferably 2 to 15% by mass, and particularly preferably 3 to 10% by mass.
- the content of the component (c) in the second agent is preferably about 0.2% by mass to 20% by mass, more preferably about 1% by mass to 20% by mass, and further preferably about 1% by mass to 7% by mass. Particularly preferred is about 2 to 6% by mass.
- the aqueous dispersion containing a component (c) as a 2nd agent in the film forming agent of this invention.
- the content of the component (c) in the aqueous dispersion containing the component (c) is not particularly limited, but preferably 10% by mass to 30% by mass.
- aqueous dispersion for example, a commercially available product can be easily obtained as described above.
- the blending amount in that case is calculated by the content of the copolymer in the aqueous dispersion.
- the first agent and the second agent may each contain a dispersion medium.
- the dispersion medium is not particularly limited, and examples thereof include the same dispersion medium as exemplified in the above-mentioned column of “2. Coating film composition”.
- the content of the dispersion medium in the first agent is not particularly limited, but is preferably about 45 to 90% by mass, more preferably about 65 to 85% by mass.
- the content of the dispersion medium in the second agent is not particularly limited, but is preferably about 45 to 90% by mass, more preferably about 65 to 85% by mass.
- the amount of application of the film-forming agent of the present invention to the application object (article) is not particularly limited, and the amount of the above-mentioned coating film applied after drying (in the case of a multilayer structure, the first layer and the second layer). Layer). Moreover, the detail of the formation method of the coating film using the film forming agent of this invention is as below-mentioned.
- Article having a coating film of the present invention is obtained by applying the above-described coating composition or film-forming agent of the present invention to the surface of an article to be coated. That is, the article having the coating film of the present invention has the coating film of the present invention described in detail in the above-mentioned "1. coating film” formed on at least a part of the surface of the article to be coated. It is.
- the article to be coated is not particularly limited, but is preferably an article in which at least a part of the surface (at least one of the outer surface and the inner surface) is formed of paper, plastic, glass, metal, or the like. Can be mentioned. Among these, paper centering on paperboard such as corrugated paperboard, paperboard board, and building material basepaper is preferable because the coating film of the present invention is relatively firmly fixed on the surface thereof. Examples of the use of the article include packaging materials. For example, in a paper container provided with the coating film of the present invention on the inner surface, the contents hardly adhere to the inner surface, and the contents can be suitably discharged from the paper container.
- Forming method of coating film As a method of forming the coating film of the present invention on the surface of an object to be coated (article), for example, the coating film composition of the present invention is coated on the surface of the coating object and then dried. A method including a process may be mentioned.
- the coating amount of the coating film composition of the present invention to the coating target is not particularly limited, and may be the coating amount of the coating film described above after drying.
- the drying temperature is not particularly limited as long as it is a temperature at which the dispersion medium contained in the coating composition evaporates, and preferably about 100 ° C. to 200 ° C. is mentioned. Further, the drying time is not particularly limited, but preferably about 5 to 30 minutes.
- the coating film of the present invention on the surface of the object to be coated (article), for example, using the film-forming agent described above, the first agent containing the component (a) and the component (b), Applying to the surface of the object to be coated and drying to form the first layer, and applying the second agent containing the component (c) from above the first layer and drying the second layer And a step 2 of forming a layer.
- a coating film having a multilayer structure including the first layer and the second layer described above can be suitably formed.
- the application amount of the first agent and the second agent to the application target (article) is not particularly limited, and may be the application amount of the first layer and the second layer described above.
- the drying temperature of the first agent is not particularly limited as long as it is a temperature at which the dispersion medium contained in the first agent evaporates, but it is preferably about 100 ° C. to 200 ° C. Further, the drying time is not particularly limited, but preferably about 5 to 30 minutes.
- the drying temperature of the second agent is not particularly limited as long as it is a temperature at which the dispersion medium contained in the second agent evaporates, but it is preferably about 100 ° C. to 200 ° C. Further, the drying time is not particularly limited, but preferably about 5 to 30 minutes.
- Example 1 calcium carbonate shown in Table 1 is added to water, mixed in a water tank with an ultrasonic transmitter for 1 minute, and an aqueous dispersion of an anionic copolymer containing a monomer having a perfluoroalkyl group as a constituent unit.
- F (CF 2 ) 6 CH 2 CH 2 OCOC (CH 3 ) CH 2 : 75 parts by mass, acrylic acid: 5 parts by mass, 2-hydroxyethyl methacrylate: 20 parts by mass 20 mass%)
- PVA polyvinyl alcohol
- the composition of the mixed solution was 15% by mass of calcium carbonate, 10% by mass of the aqueous dispersion (2% by mass as the mass of the copolymer), 5.0% by mass of polyvinyl alcohol, and 70.0% by mass of water. Is an amount that gives a mass after drying of 4.0 g / m 2 .
- 0.04 ml of various samples are dropped on the surface of the coating film in a range of about 0.8 cm 2 in a circular shape, and the paper is gradually tilted to obtain a sample.
- the inclination angle (°) at which the roll begins to roll was measured. The results are shown in Table 1 below.
- salad oil is Nisshin Oilio's brand name “Nisshin Salad Oil” (mixed oil of soybean oil and soybean oil)
- yogurt is Meiji's brand name “Meiji Bulgaria Yogurt” (with aloe)
- Kagome's trade name “Sauce Tonkatsu Brewing” was used, and for Ketchup, Kagome's trade name “Tomato Ketchup” was used.
- the calcium carbonate and PVA shown in Table 1 are as follows.
- ⁇ Calcium carbonate (1) Trade name “Callite KT” manufactured by Taiyo Chemical Co., Ltd., average particle size (D50) 5800 nm (porous), BET specific surface area 35-40 m 2 / g, primary particle size 200 nm (BET ratio) Calculated from surface area)
- ⁇ Calcium carbonate (2) Trade name “Callite SA” manufactured by Taiyo Chemical Co., Ltd., average particle size (D50) 5000 nm (porous), BET specific surface area 10-15 m 2 / g, primary particle size 1000 nm (major axis (Measured with an electron microscope)
- Comparative Example 1 In Comparative Example 1, a coating film was formed in the same manner as in Example 1 except that the following inorganic particles were used instead of calcium carbonate (1) and (2). Next, in the same manner as in Example 1, 0.04 ml of various samples were dropped on the surface of the coating film in a circular range of about 0.8 cm 2 , the paper was gradually inclined, and the sample began to roll. The angle (°) was measured. As a result, when salad oil was used as a sample, the salad oil spread on the surface of the coating film, formed no liquid balls, and gradually dropped along the surface of the coating film even when the paper was erected vertically . From this result, it was confirmed that all the coating films formed in Comparative Example 1 were inferior in water and oil repellency.
- Example 2 A coating film was formed in the same manner as in Example 1 except that the following water-soluble polymer was used instead of PVA (1) to (3). Next, in the same manner as in Example 1, 0.04 ml of various samples were dropped on the surface of the coating film in a circular range of about 0.8 cm 2 , the paper was gradually inclined, and the sample began to roll. The angle (°) was measured. As a result, as for the water-soluble polymer using sodium polyacrylate or starch paste, the coating film was not sufficiently fixed to the paper, and the coating film was peeled off when the surface of the coating film was traced with a finger.
- Example 2 Using a mixture having the composition shown in Table 1 below, a coating film was formed in the same manner as in Example 1. Next, in the same manner as in Example 1, 0.04 ml of various samples were dropped on the surface of the coating film in a circular range of about 0.8 cm 2 , the paper was gradually inclined, and the sample began to roll. The angle (°) was measured. A test was conducted in the same manner as in Example 1 using a coating solution having the same composition as in Example 1. As a result, in each of the compositions (5) to (10) of Example 2, the same water and oil repellency effect as in Example 1 was exhibited for all the samples.
- Example 3 Calcium carbonate (1) was added to water, mixed for 1 minute in a water tank with an ultrasonic transmitter, PVA (1) was added thereto, and mixed for 1 minute in a water tank with an ultrasonic transmitter. Next, the obtained mixed liquid was used as the first agent, and applied onto a cardboard having a thickness of 0.4 mm using a bar coater (No. 9 manufactured by Matsuo Sangyo Co., Ltd.), and in an oven at 180 ° C. The first layer was formed by heating and drying for 10 minutes. The composition of the mixed solution is 15% by mass of calcium carbonate, 5% of polyvinyl alcohol (PVA (1)), 80% by mass of water, and the coating amount is such that the mass after drying is 4.0 g / m 2. did.
- PVA (1) polyvinyl alcohol
- Example 3 an aqueous dispersion of an anionic copolymer containing a monomer having a perfluoroalkyl group as a constituent unit (same as that used in Example 1) was used as the second agent, and the same volume as the first agent was applied.
- the second layer was formed by heating and drying in an oven at 180 ° C. for 10 minutes.
- 0.04 ml of various samples were dropped on the surface of the coating film in a circular range of about 0.8 cm 2 , the paper was gradually inclined, and the sample began to roll. The angle (°) was measured.
- Example 3 the same water and oil repellent effect as in Example 1 was shown for all samples.
- Example 4 18% by mass (as the mass of the copolymer) of anionic copolymer containing the same component as (1) of Example 1 and having a monomer having a perfluoroalkyl group as a constituent unit, and 0.1% by mass of polyvinyl alcohol A sample was prepared in the same manner as in Example 1 except that.
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Abstract
Description
項1. (a)平均粒子径が600nm~9000nmの炭酸カルシウム、
(b)ポリビニルアルコール、及び
(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体
を含む、塗膜。
項2. 前記(b)ポリビニルアルコールのけん化度が、97mol%以上である、項1に記載の塗膜。
項3. 前記(a)平均粒子径が600nm~9000nmの炭酸カルシウムが、多孔質炭酸カルシウム及び凝集炭酸カルシウムの少なくとも一方である、項1または2に記載の塗膜。
項4. 前記(a)平均粒子径が600~9000nmの炭酸カルシウム及び前記(b)ポリビニルアルコールを含む第1の層と、
前記(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体を含む第2の層と、
を備える、項1~3のいずれかに記載の塗膜。
項5. (a)平均粒子径が600~9000nmの炭酸カルシウム、
(b)ポリビニルアルコール、及び
(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体
を含む、塗膜用組成物。
項6. 前記(b)ポリビニルアルコールのけん化度が、97mol%以上である、項5に記載の塗膜用組成物。
項7. 前記(a)平均粒子径が600nm~9000nmの炭酸カルシウムが、多孔質炭酸カルシウム及び凝集炭酸カルシウムの少なくとも一方である、項5または6に記載の塗膜用組成物。
項8. 前記(a)平均粒子径が600nm~9000nmの炭酸カルシウムの含有量が、5質量%~30質量%であり、
前記(b)ポリビニルアルコールの含有量が、0.1質量%~15質量%であり、及び
前記(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体の含有量が、0.2質量%~20質量%であり、
水性分散液である、項5~7のいずれかに記載の塗膜用組成物。
項9. (a)平均粒子径が600nm~9000nmの炭酸カルシウムと、(b)ポリビニルアルコールとを含む第1剤と、
(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体を含む第2剤と、
を備える、製膜剤。
項10. 項1~4のいずれかに記載の塗膜を表面の少なくとも一部に備えている、物品。
項11. 前記表面が、紙、プラスチック、ガラス、または金属により形成されている、項10に記載の物品。
項12. 包装用材料である、項10または11に記載の物品。
項13. 項1~4のいずれかに記載の塗膜を内表面に備えている、紙製容器。
項14. 項4に記載の塗膜を物品の表面に形成する方法であって、
前記(a)平均粒子径が600~9000nmの炭酸カルシウムと、前記(b)ポリビニルアルコールとを含む第1剤を、物品の表面に塗布し、乾燥させて第1の層を形成する工程1と、
前記第1の層の上から、前記(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体を含む第2剤を塗布し、乾燥させて第2の層を形成する工程2と、
を備える、塗膜形成方法。
項15. 物品の表面に塗膜を形成する方法であって、
項5~8のいずれかに記載の塗膜用組成物を、物品の表面に塗布した後、乾燥させる工程を備える、塗膜形成方法。
本発明の塗膜は、(a)平均粒子径が600nm~9000nmの炭酸カルシウム、(b)ポリビニルアルコール、及び(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体を含むことを特徴とする。本発明の塗膜は、これらの成分(a)、成分(b)、及び成分(c)を含んでいることにより、優れた撥水撥油性を発揮することができる。なお、本発明において、「(a)平均粒子径が600nm~9000nmの炭酸カルシウム」を「成分(a)」、「(b)ポリビニルアルコール」を「成分(b)」、「(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体」を「成分(c)」などと表記することがある。
本発明の塗膜用組成物は、(a)平均粒子径が600nm~9000nmの炭酸カルシウム、(b)ポリビニルアルコール、及び(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体を含むことを特徴とする。本発明の塗膜用組成物を、塗布対象物(物品)の表面に塗布し、乾燥させることにより、前述の「1.塗膜」の欄で詳述した本発明の塗膜が形成される。
本発明の製膜剤は、(a)平均粒子径が600nm~9000nmの炭酸カルシウムと、(b)ポリビニルアルコールとを含む第1剤と、(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体を含む第2剤とを備えることを特徴とする。本発明の製膜剤における成分(a)、(b)、(c)の種類、含有量などは、前述の「1.塗膜」の欄で詳述した本発明の塗膜と同じである。
本発明の塗膜を有する物品は、前述の本発明の塗膜用組成物または製膜剤を塗布対象物である物品の表面に塗布することにより得られるものである。すなわち、本発明の塗膜を有する物品は、塗布対象物となる物品の表面の少なくとも一部に、前述の「1.塗膜」の欄で詳述した本発明の塗膜が形成されたものである。
本発明の塗膜を塗布対象物(物品)の表面に形成する方法としては、例えば、本発明の塗膜用組成物を、塗布対象物の表面に塗布した後、乾燥させる工程を備える方法が挙げられる。
それぞれ、表1に示す炭酸カルシウムを水に加え、超音波発信器付き水槽にて1分間混合し、そこに、パーフルオロアルキル基を有するモノマーを構成単位に含むアニオン性共重合体の水性分散液[F(CF2)6CH2CH2OCOC(CH3)=CH2:75質量部、アクリル酸:5質量部、2-ヒドロキシエチルメタクリレート:20質量部からなる共重合物の水分散体(20質量%)]と、表1に示すポリビニルアルコール(PVA)を加え、超音波発信器付き水槽にて1分間混合した。得られた混合液を、厚さ0.4mmのカード紙の上にバーコーター(松尾産業株式会社社製のNo.9)を用いて塗布し、オーブン中、180℃で10分間、加熱乾燥して塗膜を形成した。なお、混合液の組成は、炭酸カルシウム15質量%、水性分散液10質量%(共重合体の質量として2質量%)、ポリビニルアルコール5.0質量%、水70.0質量%とし、塗布量は、乾燥後の質量が4.0g/m2となる量とした。乾燥後、紙を室温に冷まし、水平にした状態で、塗膜の表面に各種サンプルを、円形状の約0.8cm2の範囲に0.04ml滴下し、紙を徐々に傾斜させて、サンプルが転がり始める傾斜角度(°)を測定した。結果を下表1に示す。
・炭酸カルシウム(1):太陽化学工業株式会社製の商品名「カルライトKT」、平均粒子径(D50)5800nm(多孔質)、BET比表面積35-40m2/g、一次粒子径200nm(BET比表面積より算出)
・炭酸カルシウム(2):太陽化学工業株式会社製の商品名「カルライトSA」、平均粒子径(D50) 5000nm(多孔質)、BET比表面積10-15m2/g、一次粒子径1000nm(長径を電子顕微鏡にて測定した値)
・PVA(1):株式会社クラレ製のポリビニルアルコール、商品名「RS-2117」、けん化度97.5mol%、重合度1700
・PVA(2):株式会社クラレ製のポリビニルアルコール、商品名「PVA-117H」、けん化度99.3mol%、重合度1700
・PVA(3):日本合成化学株式会社製のポリビニルアルコール、商品名「Z-100」、けん化度99.3mol%、重合度500
比較例1においては、炭酸カルシウム(1)、(2)の代わりに、下記の無機粒子を用いたこと以外は、実施例1と同様にして、塗膜を形成した。次に、実施例1と同様にして、塗膜の表面に各種サンプルを、円形状の約0.8cm2の範囲に0.04ml滴下し、紙を徐々に傾斜させて、サンプルが転がり始める傾斜角度(°)を測定した。その結果、何れも、サンプルとしてサラダ油を用いた場合に、サラダ油が塗膜の表面に広がり、液玉を形成せず、紙を垂直に立てても、塗膜の表面に沿って徐々に垂れた。この結果から、比較例1で形成した塗膜は、全て撥水撥油性に劣ることが確認された。
・炭酸カルシウム(3):白石工業株式会社製の商品名「Brilliant-1500」、平均粒子径(D50) 500nm、BET比表面積10-14m2/g、一次粒子径150nm(BET比表面積より算出)
・炭酸カルシウム(4):白石工業株式会社製の商品名「ポアカルN」、平均粒子径(D50) 9500nm(多孔質)、BET比表面積10-18m2/g、一次粒子径80nm(BET比表面積より算出)
・親水性フュームドシリカ:日本アエロジル株式会社製の商品名「AEROSIL 200」
・疎水性フュームドシリカ:日本アエロジル株式会社製の商品名「AEROSIL RX300」
・タルク:日本タルク株式会社製の商品名「D-600」
・低温焼成フェライト粉:JFEケミカル株式会社製の商品名「JMG-1B」
・高温焼成フェライト粉:JFEケミカル株式会社製の商品名「JMG-1A」
・酸化鉄(III)粉:パウダーテック株式会社製の商品名「RDL-300A」を空気中に24時間放置して酸化させたもの
PVA(1)~(3)の代わりに、下記の水溶性高分子を用いたこと以外は、実施例1と同様にして、塗膜を形成した。次に、実施例1と同様にして、塗膜の表面に各種サンプルを、円形状の約0.8cm2の範囲に0.04ml滴下し、紙を徐々に傾斜させて、サンプルが転がり始める傾斜角度(°)を測定した。その結果、水溶性高分子として、ポリアクリル酸ナトリウムまたはデンプン糊を用いたものは、塗膜が紙に十分固定されず、塗膜の表面を指でなぞると塗膜が剥がれてしまった。また、水溶性高分子として、紙用耐水剤であるアクリル系共重合体を用いたものは、水以外のサンプルでは紙を垂直まで傾斜させても転がらなかった。さらに、水溶性高分子として、アクリル・酢酸ビニル・エチレン共重合体を用いたものは、全てのサンプルで、紙を垂直まで傾斜させても転がらなかった。
・ポリアクリル酸ナトリウム:片山化学工業株式会社製の試薬
・デンプン糊:不易糊工業株式会社製の商品名「FC10」
・紙用耐水剤:BASF社製の商品名「BASOPLAST 400 DS」
・アクリル・酢酸ビニル・エチレン共重合体:日栄化工株式会社製の商品名「AV-650S」
下表1の組成を有する混合物を用い、実施例1と同様にして、塗膜を形成した。次に、実施例1と同様にして、塗膜の表面に各種サンプルを、円形状の約0.8cm2の範囲に0.04ml滴下し、紙を徐々に傾斜させて、サンプルが転がり始める傾斜角度(°)を測定した。実施例1と同様にしての組成の塗布液を用いて、実施例1と同様にして、試験を行った。その結果、それぞれ、実施例2の(5)~(10)の組成において、全てのサンプルに対して、実施例1と同様の撥水撥油効果を示した。
炭酸カルシウム(1)を水に加え、超音波発信器付き水槽にて1分間混合し、そこにPVA(1)を加え、超音波発信器付き水槽にて1分間混合した。次に、得られた混合液を第1剤とし、厚さ0.4mmのカード紙の上にバーコーター(松尾産業株式会社社製のNo.9)を用いて塗布し、オーブン中180℃で10分間、加熱乾燥して第1の層を形成した。なお、混合液の組成は、炭酸カルシウム15質量%、ポリビニルアルコール(PVA(1))5%、水80質量%とし、塗布量は、乾燥後の質量が4.0g/m2となる量とした。次に、パーフルオロアルキル基を有するモノマーを構成単位に含むアニオン性共重合体の水性分散液(実施例1で用いたものと同じ)を第2剤とし、第1剤と同じ体積だけ塗布し、オーブン中180℃で10分間、加熱乾燥して第2の層を形成した。次に、実施例1と同様にして、塗膜の表面に各種サンプルを、円形状の約0.8cm2の範囲に0.04ml滴下し、紙を徐々に傾斜させて、サンプルが転がり始める傾斜角度(°)を測定した。その結果、それぞれ、実施例3では、全てのサンプルに対して、実施例1と同様の撥水撥油効果を示した。
実施例1の(1)と同じ成分で、パーフルオロアルキル基を有するモノマーを構成単位に含むアニオン性共重合体を18質量%(共重合体の質量として)、ポリビニルアルコールを0.1質量%とした他は実施例1と同様にして、サンプルを作製した。また、実施例1の(1)において、アニオン性共重合体の水性分散液の代わりに、カチオン系共重合体の水性分散液[F(CF2)6CH2CH2OCOC(CH3)=CH2:75質量部、ジエチルアミノエチルメタクリレート:10質量部、2-ヒドロキシエチルメタクリレート:10質量部、ポリオキシエチレンジメタクリレート(ポリオキシエチレン基の平均重合度(n)が3である):5質量部からなる共重合物の水分散体(20質量%)]、または、ノニオン系共重合体の水性分散液[F(CF2)6CH2CH2OCOC(CH3)=CH2:65質量部、ω-ヒドロキシ-ポリオキシエチレンアクリレート(ポリオキシエチレン基の平均重合度(n)が10である):20質量部、2-ヒドロキシエチルアクリレート:15質量部からなる共重合物の水分散体(20質量%)]を用いた他は実施例1と同様にして、同様にサンプルを作製した。これらのサンプルも、実施例1には若干劣るものの、ほぼ遜色ない撥水撥油効果を示した。
Claims (15)
- (a)平均粒子径が600nm~9000nmの炭酸カルシウム、
(b)ポリビニルアルコール、及び
(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体
を含む、塗膜。 - 前記(b)ポリビニルアルコールのけん化度が、97mol%以上である、請求項1に記載の塗膜。
- 前記(a)平均粒子径が600nm~9000nmの炭酸カルシウムが、多孔質炭酸カルシウム及び凝集炭酸カルシウムの少なくとも一方である、請求項1または2に記載の塗膜。
- 前記(a)平均粒子径が600~9000nmの炭酸カルシウム及び前記(b)ポリビニルアルコールを含む第1の層と、
前記(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体を含む第2の層と、
を備える、請求項1~3のいずれかに記載の塗膜。 - (a)平均粒子径が600~9000nmの炭酸カルシウム、
(b)ポリビニルアルコール、及び
(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体
を含む、塗膜用組成物。 - 前記(b)ポリビニルアルコールのけん化度が、97mol%以上である、請求項5に記載の塗膜用組成物。
- 前記(a)平均粒子径が600nm~9000nmの炭酸カルシウムが、多孔質炭酸カルシウム及び凝集炭酸カルシウムの少なくとも一方である、請求項5または6に記載の塗膜用組成物。
- 前記(a)平均粒子径が600nm~9000nmの炭酸カルシウムの含有量が、5質量%~30質量%であり、
前記(b)ポリビニルアルコールの含有量が、0.1質量%~15質量%であり、及び
前記(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体の含有量が、0.2質量%~20質量%であり、
水性分散液である、請求項5~7のいずれかに記載の塗膜用組成物。 - (a)平均粒子径が600nm~9000nmの炭酸カルシウムと、(b)ポリビニルアルコールとを含む第1剤と、
(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体を含む第2剤と、
を備える、製膜剤。 - 請求項1~4のいずれかに記載の塗膜を表面の少なくとも一部に備えている、物品。
- 前記表面が、紙、プラスチック、ガラス、または金属により形成されている、請求項10に記載の物品。
- 包装用材料である、請求項10または11に記載の物品。
- 請求項1~4のいずれかに記載の塗膜を内表面に備えている、紙製容器。
- 請求項4に記載の塗膜を物品の表面に形成する方法であって、
前記(a)平均粒子径が600~9000nmの炭酸カルシウムと、前記(b)ポリビニルアルコールとを含む第1剤を、物品の表面に塗布し、乾燥させて第1の層を形成する工程1と、
前記第1の層の上から、前記(c)炭素数が6以下のパーフルオロアルキル基を有するモノマーを構成単位に含む共重合体を含む第2剤を塗布し、乾燥させて第2の層を形成する工程2と、
を備える、塗膜形成方法。 - 物品の表面に塗膜を形成する方法であって、
請求項5~8のいずれかに記載の塗膜用組成物を、物品の表面に塗布した後、乾燥させる工程を備える、塗膜形成方法。
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CN201780023008.1A CN109071991B (zh) | 2016-04-12 | 2017-02-24 | 涂膜、涂膜用组合物、制膜剂、具有涂膜的物品和涂膜形成方法 |
EP17782134.5A EP3444307A4 (en) | 2016-04-12 | 2017-02-24 | COATING FILM, COMPOSITION FOR COATING FILM, FILM MANUFACTURING AGENT, ARTICLE HAVING COATING FILM, AND COATING FILM FORMING METHOD |
JP2018511916A JP6916493B2 (ja) | 2016-04-12 | 2017-02-24 | 塗膜、塗膜用組成物、製膜剤、塗膜を有する物品、及び塗膜形成方法 |
US16/092,799 US10767057B2 (en) | 2016-04-12 | 2017-02-24 | Coating film, composition for coating film, film-forming agent, article having coating film, and method for forming coating film |
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JPWO2017179316A1 (ja) | 2019-02-28 |
CN109071991B (zh) | 2021-10-22 |
EP3444307A1 (en) | 2019-02-20 |
US10767057B2 (en) | 2020-09-08 |
US20190085172A1 (en) | 2019-03-21 |
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