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
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/60—Additives non-macromolecular
  • C09D7/63—Additives non-macromolecular organic
• • 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
• • 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
  • C08K5/00—Use of organic ingredients
  • C08K5/04—Oxygen-containing compounds
  • C08K5/10—Esters; Ether-esters
• • 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
  • C08K5/00—Use of organic ingredients
  • C08K5/04—Oxygen-containing compounds
  • C08K5/10—Esters; Ether-esters
  • C08K5/101—Esters; Ether-esters of monocarboxylic acids
  • C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L101/00—Compositions of unspecified macromolecular compounds
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
  • C08L91/06—Waxes
• • 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
  • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
• • 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
  • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
  • C09D133/08—Homopolymers or copolymers of acrylic acid esters
• • 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
  • C09D135/00—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 a carboxyl radical, and containing at least another carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Coating compositions based on derivatives of such polymers
  • C09D135/06—Copolymers with vinyl aromatic monomers
• • 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
  • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
• • 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
  • C09D201/00—Coating compositions based on unspecified macromolecular compounds
• • 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
  • C09D5/02—Emulsion paints including aerosols
• • 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
  • C09D5/02—Emulsion paints including aerosols
  • C09D5/022—Emulsions, e.g. oil in water
• • 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
  • C09D5/02—Emulsion paints including aerosols
  • C09D5/024—Emulsion paints including aerosols characterised by the 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
  • C09D7/65—Additives macromolecular
• • 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
  • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
• • 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
• • 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
  • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
  • D21H19/18—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising waxes
• • 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
  • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
  • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• • 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
  • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
  • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D21H19/22—Polyalkenes, e.g. polystyrene
• • 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
  • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
  • D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
• • 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
  • D21H19/36—Coatings with pigments
  • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
  • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
• • 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
• • 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
• • 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

Definitions

• the present invention relates to aqueous dispersions useful as water- and oil-resistant coatings or heat-sealable coatings. Specifically, the present invention relates to an aqueous dispersion that has a low viscosity, has excellent storage stability and workability, and can impart water and oil resistance and heat sealability to a substrate when used as a coating agent. The present invention also relates to a water- and oil-resistant coating agent and a heat-sealable coating agent comprising this aqueous dispersion, and to a film and a laminate using this aqueous dispersion.
• food packaging materials used for sweets, fried foods, etc. have been made of paper or other pulp base materials or plastic base materials that have been given water and oil resistance by applying a coating agent. , fluorine-based compounds and paraffin wax are used. Regarding these packaging materials, in addition to being required to have water and oil resistance from the viewpoint of stain resistance, heat sealability is often required from the viewpoint of fixing the packaging.
• fluorine-based compounds have excellent water and oil resistance, there are concerns that they may be harmful to the environment and the human body, and in recent years their use has been increasingly prohibited or avoided. Furthermore, paraffin wax has a problem in that it does not provide satisfactory performance due to its poor water and oil resistance.
• Patent Document 1 describes a coating agent for waterproof and moisture-proof cardboard made of an aqueous dispersion containing a natural hydrocarbon wax, a plant sterol, and a low HLB sucrose fatty acid ester.
• Patent Document 2 describes a paper paint containing liquid paraffin, sucrose fatty acid ester, and a water-soluble resin.
• Patent Document 3 describes a coating agent for water- and oil-proof paper, which is a composition in which a polyvinyl alcohol aqueous solution is mixed with a low HLB sucrose fatty acid ester.
• Patent Documents 1 and 2 are used as coating agents, satisfactory water resistance and oil resistance cannot be obtained, and further improvement of water resistance and oil resistance is required.
• Patent Document 3 does not describe the properties of the dispersion obtained, and when the present inventor investigated, only a slurry with extremely high viscosity and low dispersion stability could be obtained. It turned out that it is difficult to apply this method. Moreover, none of them mention anything about heat sealability.
• the present invention aims to provide a water-based material that has excellent productivity, storage stability, and workability, and that can impart sufficient water and oil resistance and heat sealability to base materials when used as a coating agent.
• the purpose is to provide a dispersion liquid.
• the present inventor has achieved the following by controlling the content of the nonionic surfactant to a specific ratio to the binder resin and wax components.
• the present invention was achieved by discovering that when applied to a substrate to form a coating film, it is possible to impart sufficient water and oil resistance and heat sealability to the substrate.
• the gist of the present invention is the following [1] to [23].
• the content of the surfactant (B') is 0.1 to 200 parts by weight based on 100 parts by weight of the binder resin (A), and the content of the surfactant (B') is 0.1 to 200 parts by weight based on 100 parts by weight of the wax component (C).
• the binder resin (A) is a radical polymerization resin of at least one of a (meth)acrylic resin, a styrene resin, a vinyl resin, an olefin resin, and a copolymer containing a monomer of these resins, [ 1] to [4].
• the aqueous dispersion of the present invention further has the following constituent requirements (1) to (10).
• the polyol fatty acid ester of the nonionic surfactant (B) is at least one selected from sucrose fatty acid ester, sorbitan fatty acid ester, glycerin fatty acid ester, propylene glycol fatty acid ester, and polyoxyethylene fatty acid ester. be.
• the anionic surfactant (D) is a fatty acid metal salt.
• the binder resin (A) is at least one of a chain polymerization resin, a polycondensation resin, and a natural resin.
• the binder resin (A) is a polycondensation resin of at least one of a polyester resin and a polyamide resin.
• the binder resin (A) is at least one natural resin selected from starch, rosin resin, and terpene resin.
• the HLB value of the nonionic surfactant (B) and the surfactant (B') is 9 or less.
• the melting points of the nonionic surfactant (B) and the surfactant (B') are 0°C or higher.
• the wax component (C) is an ester compound having a structural part derived from a fatty acid and a structural part derived from an aliphatic alcohol.
• the wax component (C) has a melting point of 40°C or higher.
• the total content of the binder resin (A), the nonionic surfactant (B) or the surfactant (B'), and the wax component (C) is 50% by mass or more, and the wax component The content of (C) is 0.1 to 40 parts by mass based on 100 parts by mass of the binder resin (A).
• a water- and oil-resistant coating agent comprising the aqueous dispersion according to any one of [1] to [8].
• a coating agent for paper, plastic or fibers comprising the aqueous dispersion according to any one of [1] to [8].
• a heat-sealable coating agent comprising the aqueous dispersion according to any one of [1] to [8].
• the content of the surfactant (B') is 0.1 to 200 parts by mass based on 100 parts by mass of the binder resin (A), and based on 100 parts by mass of the wax component (C).
• the above-mentioned structural requirements (1) to (10) are also adopted for the membrane of the present invention.
• a food packaging material comprising the film according to any one of [12] to [18].
• the aqueous dispersion of the present invention is an aqueous dispersion system with excellent productivity, storage stability, and workability, and when used as a coating agent, it imparts sufficient water and oil resistance and heat sealability to the substrate. is possible.
• the aqueous dispersion according to the first embodiment of the present invention is an aqueous dispersion containing a binder resin (A), a nonionic surfactant (B), and a wax component (C), wherein the nonionic surface
• the content of the activator (B) is 0.1 to 200 parts by mass per 100 parts by mass of the binder resin (A), and 2 parts by mass or more per 100 parts by mass of the wax component (C).
• the aqueous dispersion according to the second embodiment of the present invention is an aqueous dispersion containing a binder resin (A), a surfactant (B'), and a wax component (C), and the surfactant (B' ) contains at least one of sucrose fatty acid ester and sorbitan fatty acid ester, and the content of the surfactant (B') is 0.1 to 200 parts by mass based on 100 parts by mass of the binder resin (A), The amount is 2 parts by mass or more per 100 parts by mass of the wax component (C).
• aqueous dispersion 1 the aqueous dispersion according to the first embodiment of the present invention
• aqueous dispersion 2 the aqueous dispersion according to the second embodiment of the present invention
• aqueous dispersion of the present invention are collectively referred to as the "aqueous dispersion of the present invention”.
• the aqueous dispersion of the present invention contains a binder resin (A), a nonionic surfactant (B) or a specific surfactant (B'), and a wax component (C), and the nonionic surfactant (B) or the specific surfactant (B') content is 0.1 to 200 parts by mass based on 100 parts by mass of the binder resin (A), and the nonionic surfactant (B) or By containing 2 parts by mass or more of the specific surfactant (B') per 100 parts by mass of the wax component (C), in addition to stability as an aqueous dispersion and water and oil resistance when formed into a film, heat resistance is improved. It also has excellent sealing properties.
• the aqueous dispersion of the present invention may contain both a nonionic surfactant (B) or a specific surfactant (B') and a wax component (C). , and it is important that the nonionic surfactant (B) or the specific surfactant (B') be contained in a certain amount or more with respect to the wax component (C), so that the binder resin (A ), it is thought that appropriate mixing and phase separation were achieved, resulting in high water and oil resistance when formed into a membrane.
• the dispersion of the present invention can be used as a membrane. It is thought that the above-mentioned appropriate phase separation state was sometimes developed on the membrane surface as well, and that this made it possible to obtain excellent heat-sealing properties.
• binder resin (A) The binder resin (A) used in the present invention (hereinafter sometimes referred to as "component (A)”) includes at least synthetic resins such as chain polymerization resins and polycondensation resins, and natural resins. Any resin is preferred.
• chain polymerization resins examples include (meth)acrylic resins, styrene resins, vinyl resins, polyester resins, amino resins, epoxy resins, urethane resins, polyether resins, polyamide resins, phenolic resins, silicone resins, olefin resins, and these resins.
• Copolymers containing monomers of resins e.g., styrene-(meth)acrylic resin, (meth)acrylic-urethane resin, vinyl acetate-(meth)acrylic resin, ethylene-(meth)acrylic resin, ethylene-acetic acid (vinyl resin, (meth)acrylic-silicone resin, etc.).
• (meth)acrylic means one or both of “acrylic” and “methacrylic”.
• the polycondensation resin include polyamide resin, polyester resin, and polycarbonate resin.
• the natural resin is preferably at least one of starch, rosin resin, and terpene resin.
• (meth)acrylic resins preferred are (meth)acrylic resins, styrene resins, vinyl resins, polyester resins, olefin resins, and copolymers containing monomers of these resins, from the viewpoint of imparting water and oil resistance and heat sealability.
• (Meth)acrylic resins and copolymers thereof, polyester resins and copolymers thereof are more preferred.
• the (meth)acrylic resins include "Torcryl BCX-8111,” “Torcryl W-168,” “Torcryl X-4403,” “Torcryl W-463,” and “Torkril BCX-1160 R-2.
• styrene resin examples include "Boncourt SK-105E” (manufactured by DIC).
• vinyl resin examples include vinyl acetate resin, vinyl alcohol resin, and vinyl chloride resin.
• specific examples of the vinyl acetate resin include “Polysol S-5J”, “Polysol AX-590W”, “Polysol AX-751”, “Polysol AX-428J”, “Polysol AX-510ZL”, and “Polysol AX-”. 951'', ⁇ Polysol BX-7057Z'', and ⁇ Polysol AM-200'' (all manufactured by Showa Denko).
• the vinyl alcohol resins include "Gohsenol N-300”, “Gohsenol NL-05”, “Gohsenol AL-06R”, “Gohsenol GH-22”, “Gohsenol GH-20R”, “Gohsenol GH-” 17R", “Gohsenol GM-14R”, “Gohsenol GL-05", “Gohsenol GL-03”, “Gohsenol KH-20”, “Gohsenol KH-17”, “Gohsenol KL-17”, “Gohsenol KL-05 “, “Gosenex KL-03”, “Gosenex NK-05R”, “Gosenex Z-100", “Gosenex Z-200”, “Gosenex Z-300”, “Gosenex Z-410", “Gosenex K-434" , “Gosenex L-3266”, “Gosenex CKS-50”, “Gosenex L-
• vinyl chloride resin examples include "ViniBlan 985", “ViniBlan HD-057”, and “ViniBlan 871-8” (all manufactured by Nissin Chemical Industry Co., Ltd.).
• the polyester resins include “Nichigo Polyester WR-901”, “Nichigo Polyester WR-905", “Nichigo Polyester WR-961", and “Nichigo Polyester W-1031” (all of which are manufactured by Mitsubishi Chemical Corporation). ), “Vylonal MD-1200”, “Vylonal MD-1500”, “Vylonal MD-2000”, “Vylonal MD-1480”, “Vylonal MD-1985” (manufactured by Toyobo), “Sepolsion ES” (all manufactured by Sumitomo Seika Co., Ltd.), etc.
• amino resin examples include "BECKOPOX EH 613w/80WA” and “BECKOPOX VEH 2106w/80WA” (all manufactured by Daicel Allnex).
• the epoxy resins include "BECKOPOX EP 2307w/45WAMP”, “BECKOPOX EP 2384w/57WA”, “BECKOPOX EM 2120w/45WA” (manufactured by Daicel Allnex), “Adeka Resin EM series” ( Manufactured by Adeka ) etc.
• the urethane resins include "WBR-016U”, “WBR-3004" (manufactured by Taisei Fine Chemicals), "DAOTAN VTW 1265/36WA”, “DAOTAN VTW 6450/30WA”, and “DAOTAN VTW 6492".
• WBR-016U "WBR-3004"
• DAOTAN VTW 1265/36WA "DAOTAN VTW 6450/30WA”
• DAOTAN VTW 6492 "DAOTAN VTW 6492”.
• /35WA'', ⁇ DAOTAN VTW 7001/36WA'' manufactured by Daicel Allnex
• polyether resin examples include “SN Thickener 601”, “Nopal 710N”, “SN Thickener A-801”, and “SN Thickener A-816” (all manufactured by San Nopco).
• the polyether resin may be a urethane-modified polyether resin, and specifically, "SN Thickener 603", “SN Thickener 607", “SN Thickener 612”, “SN Thickener 612N”, “SN Thickener 619”. , “SN Thickener 621N”, “SN Thickener 621TF”, “SN Thickener 623N”, “SN Thickener 624N”, “SN Thickener 625N”, “SN Thickener 629N”, “Nopal 700N”, “SN Thickener A-814” (manufactured by San Nopco), etc.
• the polyamide resins include "Sepolsion NE205", “Sepolsion PA” (manufactured by Sumitomo Seika Co., Ltd.), "AQ Nylon A-90", “AQ Nylon P-70”, and “AQ Nylon P”. -95'' and ⁇ AQ Nylon T-70'' (manufactured by Toray Industries, Inc.).
• silicone resin examples include “DOWSIL 8024”, “DOWSIL SH 7024”, and “DOWSIL SH 7025 EX” (all manufactured by DOW).
• the olefin resins include "AQUACER 532,” “AQUACER 513,” “AQUACER 517,” “AQUACER 552,” “AQUACER 593,” “AQUACER 1547,” and “AQUACER 250.”
• 0 (manufactured by BYK)
• Sepolsion G (manufactured by Sumitomo Seika Co., Ltd.)
• Arrow Base SB-1200 "Arrow Base SE-1200”
• Arrow Base SD-1200 “Arrow Base SD-1200”
• Arrow Base DA-1010 “Arrow Examples include “Base DC-1010” and “Arrow Base YA-6010” (manufactured by Unitika).
• the styrene-(meth)acrylic resins include "Toukryl S-171”, “Toukryl BCX-3101”, “Toukryl W-172”, “FILLHARMO GS400”, “FILLHARMO GS500” (all of which are manufactured by Toyochem Co., Ltd.).
• (Meth)acrylic-urethane resins include "3DR-9057,” “3DR-1000,” “WEM-200U,” “WEM-3000,” and “WEM-505C” (all of which are manufactured by Taisei Fine Chemical Co., Ltd.). ), etc.
• vinyl acetate (meth)acrylic resins examples include “Polysol 747L” (manufactured by Showa Denko), “Vinibran A68J1", “Vinibran A68J1N”, and “Vinibran A70J2M” (manufactured by Nissin Chemical Industry Co., Ltd.). (manufactured by a company), etc.
• ethylene-(meth)acrylic resins include “Aquatex AC-3100” (manufactured by Japan Coating Resin), “AQUACER 1061”, “AQUACER 1055" (manufactured by BYK), etc. Can be mentioned.
• the ethylene-vinyl acetate resin includes "Polysol AM-3000,” “Polysol EVA AD-21,” “Polysol EVA AD-5,” “Polysol EVA AD-56,” and “Polysol HG-600H.” , “Polysol EVA ADE-107”, “Polysol EVA M-260F” (manufactured by Showa Denko), “Aquatex EC-1200", “Aquatex EC-1700", “Aquatex EC-1800” (and above) , manufactured by Japan Coating Resin Co., Ltd.), “Sepolsion VA406” (manufactured by Sumitomo Seika Co., Ltd.), “Vini Blanc 3483Y” (manufactured by Nissin Chemical Industry Co., Ltd.), “Sumikaflex S-201HQ”, “Sumikaflex S-” 305HQ,” “Sumikaflex S-465HQ,” and “Sumikaflex S-752” (all manufactured by Sumitomo Chemtex
• (Meth)acrylic-silicone resins include “Polysol AP-3900” (manufactured by Showa Denko), “Aquabrid ASi-91”, and “Aquabrid 4790” (manufactured by Daicel Miraiz). ), “Movinyl LDM7523”, “Movinyl 7110”, “Movinyl HS-531” (manufactured by Japan Coating Resin Co., Ltd.), and the like.
• binder resins (A) may be used alone, or two or more of the same or different types of binder resins (A) may be used in combination.
• Nonionic surfactant (B)/surfactant (B') The surfactant (B) used in the present invention (hereinafter sometimes referred to as “component (B)”) is a nonionic surfactant in the aqueous dispersion 1, and is a nonionic surfactant in the aqueous dispersion 2. is a surfactant of at least one of sucrose fatty acid ester and sorbitan fatty acid ester (hereinafter sometimes referred to as "specific surfactant (B')” or simply “component (B')”). be.
• nonionic surfactant commonly known nonionic surfactants can be used, including polyol fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene alkyl ether, and polyoxyethylene alkyl amine. It is more preferable to use at least one selected from the viewpoints of improving water dispersibility, film forming properties, and water and oil resistance of the coating film.
• polyol fatty acid ester at least any one of sucrose fatty acid ester, sorbitan fatty acid ester, glycerin fatty acid ester, propylene glycol fatty acid ester, and polyoxyethylene fatty acid ester is preferable.
• sucrose fatty acid esters, sorbitan fatty acid esters, and glycerin fatty acid esters are preferred, and sucrose fatty acid esters and sorbitan fatty acid esters are more preferred, and particularly preferred.
• sucrose fatty acid ester is a sucrose fatty acid ester.
• sucrose fatty acid ester a commonly known sucrose fatty acid ester can be used, as long as at least one of the eight hydroxyl groups of sucrose forms an ester structure with a fatty acid.
• the fatty acid-derived structural moiety of the sucrose fatty acid ester is a structural moiety derived from a saturated or unsaturated fatty acid having 10 to 30 carbon atoms (preferably 12 to 28 carbon atoms, more preferably 12 to 22 carbon atoms), specifically Sucrose fatty acid esters, which are structural moieties derived from lauric acid, myristic acid, palmitic acid, oleic acid, stearic acid, and erucic acid, can be used.
• structural moieties derived from fatty acids may include those that have a structural moiety derived from only one type of fatty acid, and those that have a structural moiety derived from a fatty acid obtained by combining two or more types of fatty acids in a specific ratio. You just have to use what you have.
• sucrose fatty acid ester includes "Ryoto Sugar Ester S-370,””Ryoto Sugar Ester S-570,””Ryoto Sugar Ester S-970,” and “Ryoto Sugar Ester S-1170.”
• “Ryoto Sugar Ester S-1570” “Ryoto Sugar Ester S-1670”, “Ryoto Sugar Ester P-170”, “Ryoto Sugar Ester P-1670”, “Ryoto Sugar Ester M-1695”
• Ryoto Sugar Ester O-170 "Ryoto Sugar Ester O-1570
• Ryoto Sugar Ester L-195" "Ryoto Sugar Ester L-595
• sucrose fatty acid ester that is solid at 0° C. or higher because it can widen the range of application from the viewpoint of industrially utilizing the aqueous dispersion of the present invention.
• sucrose fatty acid esters may be used alone or in combination of two or more.
• sorbitan fatty acid ester a commonly known sorbitan fatty acid ester can be used, as long as at least one of the four hydroxyl groups of sorbitan forms an ester structure with a fatty acid.
• the structural moiety derived from a fatty acid contained in the sorbitan fatty acid ester is a structural moiety derived from a saturated or unsaturated fatty acid having 10 to 30 carbon atoms (preferably 12 to 28 carbon atoms, more preferably 12 to 22 carbon atoms).
• Sorbitan fatty acid esters having structural moieties derived from lauric acid, myristic acid, palmitic acid, oleic acid, stearic acid, and erucic acid can be used.
• the sorbitan fatty acid ester may have a structural moiety derived from only one type of fatty acid, or a structural moiety derived from a fatty acid obtained by combining two or more types of fatty acids in a specific ratio. You just have to use different things.
• the sorbitan fatty acid esters include "Rheodor SP-L10", “Rheodor SP-P10”, “Rheodor SP-S10V”, “Rheodor SP-S20”, “Rheodor SP-S30V”, “Rheodor SP-O10V” ”, “Reodore SP-O30V”, “Reodore SP-L10”, “Reodore AS-10V”, “Reodore AO-10V”, “Reodore AS-15V”, “Emazol L-10V”, “Emazol P-10V” , "Emazol S-10V”, “Emazol O-10V”, “Emazol L-120V”, “Emazol O-120V”, “Emazol S-120V”, “Reodore TW-L120", “Reodore TW-L106", “Reodore TW-P120", “Reodore TW-S120V”, “Reodore TW-S106V", “Reodore TW-S320V", "Reodore TW-
• sorbitan fatty acid ester which is solid at 0° C. or higher because it can widen the range of application from the viewpoint of industrially utilizing the aqueous dispersion of the present invention.
• These sorbitan fatty acid esters may be used alone or in combination of two or more.
• glycerin fatty acid ester commonly known glycerin fatty acid esters can be used, as long as at least one of the three hydroxyl groups of glycerin forms an ester structure with a fatty acid.
• the fatty acid-derived structural moiety of the glycerin fatty acid ester is a structural moiety derived from a saturated or unsaturated fatty acid having 10 to 30 carbon atoms (preferably 12 to 28 carbon atoms, more preferably 12 to 22 carbon atoms), specifically Glycerin fatty acid esters having structural moieties derived from lauric acid, myristic acid, palmitic acid, oleic acid, stearic acid, and erucic acid can be used.
• the glycerin fatty acid ester may have a structural moiety derived from only one type of fatty acid, or a structural moiety derived from a fatty acid obtained by combining two or more types of fatty acids in a specific ratio. You just have to use different things.
• the glycerin fatty acid ester may be a glycerin organic acid fatty acid ester (or organic acid monoglyceride) or a polyglycerin fatty acid ester.
• Glycerin organic acid fatty acid ester is a monoglyceride in which one fatty acid is bound to glycerin, and an organic acid (for example, acetic acid, lactic acid, citric acid, succinic acid, diacetyltartaric acid) is further bound to the hydroxyl group of monoglyceride.
• the polyglycerol fatty acid ester has an average degree of glycerin polymerization of, for example, 2 to 10, and may contain one or more types of fatty acid residues.
• glycerin fatty acid ester that is solid at 0° C. or higher because it can widen the range of application from the viewpoint of industrially utilizing the aqueous dispersion of the present invention.
• glycerin fatty acid esters may be used alone or in combination of two or more.
• propylene glycol fatty acid ester a commonly known propylene glycol fatty acid ester can be used, as long as one of the two hydroxyl groups of propylene glycol forms an ester structure with a fatty acid.
• the structural moiety derived from a fatty acid possessed by the propylene glycol fatty acid ester is a structural moiety derived from a saturated or unsaturated fatty acid having 10 to 30 carbon atoms (preferably 12 to 28 carbon atoms, more preferably 12 to 22 carbon atoms), specifically Propylene glycol fatty acid esters having structural moieties derived from lauric acid, myristic acid, palmitic acid, oleic acid, stearic acid, and erucic acid can be used.
• the propylene glycol fatty acid esters include "Kaoh Homotex PS-200V” (manufactured by Kao Corporation), “Type BP”, “Rikemar PP-100", “Rikemar PS-100”, “Rikemar PO-100V”, Examples include “Rikemar PB-100” (manufactured by Riken Vitamin Co., Ltd.).
• a propylene glycol fatty acid ester that is solid at 0° C. or higher because it can widen the range of application from the viewpoint of industrially utilizing the aqueous dispersion of the present invention.
• These propylene glycol fatty acid esters may be used alone or in combination of two or more.
• polyoxyethylene fatty acid ester a commonly known polyoxyethylene fatty acid ester can be used, as long as one of the two hydroxyl groups of polyethylene glycol forms an ester structure with a fatty acid.
• the structural moiety derived from a fatty acid contained in a polyoxyethylene fatty acid ester is a structural moiety derived from a saturated or unsaturated fatty acid having 10 to 30 carbon atoms (preferably 12 to 28 carbon atoms, more preferably 12 to 22 carbon atoms).
• Polyoxyethylene fatty acid esters having structural moieties derived from lauric acid, myristic acid, palmitic acid, oleic acid, stearic acid, and erucic acid can be used.
• the polyoxyethylene fatty acid esters include "Nonion L-2", “Nonion S-2”, “Nonion S-4”, “Nonion S-6", “Nonion O-2", “Nonion O -4'' (all manufactured by NOF Corporation), ⁇ Rheofat O/15'', and ⁇ Rheofat 60/15'' (all manufactured by Lion Specialty Chemicals).
• a polyoxyethylene fatty acid ester that is solid at 0° C. or higher because it can widen the range of application from the viewpoint of industrially utilizing the aqueous dispersion of the present invention.
• These polyoxyethylene fatty acid esters may be used alone or in combination of two or more.
• polyoxyethylene alkyl ether a commonly known polyoxyethylene alkyl ether can be used, as long as one of the two hydroxyl groups of polyethylene glycol forms an ether structure with an aliphatic alcohol.
• the structural moiety derived from an aliphatic alcohol possessed by polyoxyethylene alkyl ether is a structure derived from a saturated or unsaturated aliphatic alcohol having 10 to 30 carbon atoms (preferably 12 to 28 carbon atoms, more preferably 12 to 22 carbon atoms).
• polyoxyethylene alkyl ether which is a structural moiety derived from lauryl alcohol, myristyl alcohol, palmityl alcohol, cetyl alcohol, oleyl alcohol, stearyl alcohol, or erucyl alcohol, can be used.
• polyoxyethylene alkyl ether examples include "Emulgen 102KG”, “Emulgen 103", “Emulgen 306P”, “Emulgen 404" (manufactured by Kao Corporation), “Nonion K-204", “Nonion K-”220'', ⁇ Nonion P-208'', ⁇ Nonion E-202'', ⁇ Nonion E-205'', ⁇ Nonion E-212'', ⁇ Nonion S-202'', ⁇ Nonion MN-811'' (the above are NOF Corporation ), "Pionin D-1103-D”, “Pionin D-1103-S”, “Nucalgen D-1203", “Pionin D-1803", “Pionin D-1402", “Pionin D-1502” (manufactured by Takemoto Yushi Pharmaceutical Co., Ltd.) and the like.
• polyoxyethylene alkyl ether which is solid at 0° C. or higher because it can widen the scope of application from the viewpoint of industrially utilizing the aqueous dispersion of the present invention.
• polyoxyethylene alkyl ethers may be used alone or in combination of two or more.
• polyoxyethylene alkylamine a commonly known polyoxyethylene alkylamine can be used.
• a compound of the general formula RN-[(CH 2 CH 2 O) m -H] 2 R is carbon (4 to 20 hydrocarbon groups, two m's may be the same or different), and the like.
• polyoxyethylene alkylamines include “Amit 102,””Amit302,””AminoneL-02" (manufactured by Kao Corporation), “Starhome FK,””StarhomeF,” and “Starhome FK.”
• Home T “Starhome DL”, “Starhome DF-1”, “Starhome DF-2”, “Starhome DF-4”, “Starhome DFC”, “Starhome DO”, “Starhome DOS” ”, “Stahome MF Pellet”, “Stahome LIPA”, “Nymid MF-203”, “Nymid MF-210”, “Nymid MT-215” (manufactured by NOF Corporation), “Liponol C/12” , “Liponol C/15”, “Liponol C/25”, “Liponol O/12", “Liponol O/15”, “Liponol T/12", “Liponol T/15”, “Liponol T/25”, Examples include “Liponol HT/12” and
• polyoxyethylene alkyl ether which is solid at 0° C. or higher because it can widen the scope of application from the viewpoint of industrially utilizing the aqueous dispersion of the present invention.
• polyoxyethylene alkyl ethers may be used alone or in combination of two or more.
• the HLB value of the nonionic surfactant (B) or surfactant (B') used in the present invention is preferably 9 or less, more preferably 7 or less, still more preferably 6 or less.
• the lower limit of the HLB value of the nonionic surfactant (B) or surfactant (B') is preferably 1 or more from the viewpoint of improving oil resistance.
• the HLB value can also be adjusted to the above preferred range by mixing two or more types of nonionic surfactants with a high HLB value and nonionic surfactants with a low HLB value. be.
• the nonionic surfactant (B) or surfactant (B') of the present invention should have a melting point of 0°C or higher from the viewpoint of industrially utilizing the aqueous dispersion of the present invention. It is preferable because the range of application can be widened and the water and oil resistance when formed into a film can be easily improved.
• the melting point of the nonionic surfactant (B) or surfactant (B') is more preferably 5°C or higher, even more preferably 10°C or higher, particularly preferably 15°C or higher,
• the temperature is particularly preferably 25°C or higher, and most preferably 40°C or higher.
• the melting point of the nonionic surfactant (B) or surfactant (B') is preferably 200°C or lower, more preferably 150°C or lower, and 100°C or lower, from the viewpoint of processing temperature and decomposition temperature. More preferably, the temperature is 85°C or lower, particularly preferably 70°C or lower, and most preferably 70°C or lower.
• nonionic surfactants (B) or surfactants (B') may be used alone, or the same or different types of surfactants may be used in combination.
• the wax (C) used in the present invention (hereinafter sometimes referred to as "component (C)”) is solid at room temperature (23 ° C. in the present invention) and becomes liquid when heated. It is distinguished from liquid paraffin, which is liquid at room temperature.
• the melting point of the wax component (C) is usually at least room temperature, preferably at least 40°C, more preferably at least 60°C.
• the temperature is usually 200°C or lower, preferably 150°C or lower, more preferably 100°C or lower, particularly preferably 90°C or lower.
• the melting point is high, the resulting coating film is less likely to become sticky, and the oil resistance targeted by the present invention can be easily obtained.
• the melting point is low, the dispersibility in water tends to be excellent.
• Such waxes (C) include, for example, hydrocarbon waxes such as solid paraffin, microcrystalline wax, ceresin wax, polyethylene wax, and polypropylene wax, hydrogenated oils such as hydrogenated castor oil and hydrogenated jojoba oil, carnauba wax, rice bran wax,
• hydrocarbon waxes such as solid paraffin, microcrystalline wax, ceresin wax, polyethylene wax, and polypropylene wax
• hydrogenated oils such as hydrogenated castor oil and hydrogenated jojoba oil, carnauba wax, rice bran wax
• Examples include natural waxes mainly composed of fatty acid ester compounds such as beeswax, montan wax, and candelilla wax, and synthetic waxes such as synthetic fatty acid esters and synthetic fatty acid amides.
• the number of carbon atoms in the structural moiety derived from the fatty acid is usually 10 to 40, preferably 12 to 38, more preferably 14 to 36, particularly preferably 16 to 34.
• a large number of carbon atoms tends to provide excellent water and oil resistance when a substrate is coated with an aqueous dispersion, and a small number tends to provide excellent dispersibility in water.
• fatty acids examples include lauric acid, myristic acid, pentadecyl acid, palmitic acid, palmitoleic acid, margaric acid, stearic acid, oleic acid, vaccenic acid, linoleic acid, linolenic acid, eleostearic acid, arachidic acid, eicosaedic acid, Mead acid, arachidonic acid, behenic acid, tricosylic acid, lignoceric acid, nervonic acid, pentacosanoic acid, cerotic acid, heptacanoic acid, montanic acid, nonacosanoic acid, melisic acid, hentriacontanoic acid, dotriacontanoic acid, tritriacontanoic acid , tetratriacontanoic acid, pentatriacontanoic acid, hexatriacontanoic acid, heptatriacont
• the number of carbon atoms in the structural moiety derived from the aliphatic alcohol is usually 12 to 40, preferably 14 to 38, more preferably 16 to 36, particularly preferably 18 to 34.
• the number of carbon atoms is large, water and oil resistance tends to be excellent when a base material is coated with an aqueous dispersion, whereas when the number of carbon atoms is small, the dispersibility of the wax in water tends to be excellent.
• aliphatic alcohol examples include lauryl alcohol, tridecyl alcohol, myristyl alcohol, pentadecyl alcohol, 1-hexadecanol, palmitole alcohol, 1-heptadecanol, stearyl alcohol, isostearyl alcohol, elaidyl alcohol, and oleyl alcohol.
• linoleyl alcohol elidolinoleyl alcohol, ricinoleyl alcohol, nonadecyl alcohol, arachidyl alcohol, heneicosanol, behenyl alcohol, erucyl alcohol, lignoseryl alcohol, seryl alcohol, 1-heptacosanol, montanyl alcohol
• Examples include 1-nonacosanol, myricyl alcohol, 1-dotriacontanol, 1-tetratriacontanol, and preferably stearyl alcohol, nonadecyl alcohol, arachidyl alcohol, heneicosanol, behenyl alcohol, and lignoceryl alcohol.
• ceryl alcohol 1-heptacosanol, montanyl alcohol, 1-nonacosanol, myricyl alcohol, 1-dotriacontanol, and 1-tetratriacontanol.
• the ester compound having a structural moiety derived from a fatty acid and a structural moiety derived from an aliphatic alcohol may be a reaction product of the fatty acid and the aliphatic alcohol.
• ester compounds having a structural moiety derived from a fatty acid and a structural moiety derived from an aliphatic alcohol include lauryl laurate, tridecyl laurate, myristyl laurate, pentadecyl laurate, hexadecane-1-yl laurate, and palmylate laurate.
• Trail heptadecan-1-yl laurate, stearyl laurate, isostearyl laurate, elaidyl laurate, oleyl laurate, linoleyl laurate, elaidrinoleyl laurate, ricinoleyl laurate, nonadecyl laurate, arachidyl laurate, Heneicosan laurate, behenyl laurate, erucyl laurate, lignoceryl laurate, ceryl laurate, heptacosan-1-yl laurate, montanyl laurate, nonacosan-1-yl laurate, myricyl laurate, dotriacontan- laurate Lauric acids such as 1-yl, tetratriacontan-1-yl laurate; lauryl myristate, tridecyl myristate, myristyl myristate, pentade
• palmitic acids palmitic acids, stearic acids, arachidic acids, behenic acids, tricosylic acids, lignoceric acids, pentacosanoic acids, cerotic acids, heptacanoic acids, montanic acids, nonacosanoic acids, melisic acids, hentriacontanoic acids, and dotriacontanoic acids.
• tritriacontanic acids are preferred, particularly montanyl palmitate, myricyl palmitate, dotriacontan-1-yl palmitate, tetratriacontan-1-yl palmitate, stearyl stearate, montanyl stearate, myricyl stearate, Dotriacontan-1-yl stearate, tetratriacontan-1-yl stearate, montanyl arachidate, myricyl arachidate, dotriacontan-1-yl arachidate, tetratriacontan-1-yl arachidate, behenic acid Behenyl, lignoceryl behenate, seryl behenate, montanyl behenate, myricyl behenate, dotriacontan-1-yl behenate, tetratriacontan-1-yl behenate, montanyl tricosylate, myricyl tricosylate, dotria tricosylate contan-1
• the carbon number of the above ester compound is usually 22 to 80, preferably 26 to 76, more preferably 32 to 74, particularly preferably 38 to 70.
• the carbon number of carbon atoms is large, the water and oil resistance tends to be excellent when the aqueous dispersion is coated on a base material, whereas when the number of carbon atoms is small, the dispersibility of the wax in water tends to be excellent.
• wax components (C) may be used alone, or two or more of the same or different waxes may be used in combination. Alternatively, a mixture of a plurality of compounds may be used, such as a natural wax containing the fatty acid ester compound as a main component.
• the aqueous dispersion of the present invention may further contain an anionic surfactant (D) (hereinafter sometimes referred to as "component (D)”) in addition to the components (A) to (C) above. preferable.
• component (D) an anionic surfactant
• anionic surfactant (D) any commonly known anionic surfactant may be used, such as fatty acid metal salts, sulfonic acid metal salts, sulfuric acid ester salts, phosphate metal salts, and the like.
• fatty acid metal salts are preferable because they have high water dispersion stability and can easily reduce the viscosity of the aqueous dispersion.
• the number of carbon atoms in the fatty acid metal salt is preferably 6 to 30, more preferably 10 to 28.
• the fatty acid may be linear or branched, and may contain a hydroxyl group.
• an alkali metal salt is preferable, and a sodium salt is particularly preferable.
• fatty acid metal salts include sodium melisinate, sodium montanate, sodium cerotate, sodium lignocerate, sodium behenate, sodium arachidate, sodium arachidonate, sodium stearate, potassium stearate, and oleic acid.
• Examples include sodium, sodium 12-hydroxystearate, sodium palmitate, sodium myristate, sodium laurate, sodium caprate, sodium octoate, and sodium hexanoate.
• sodium montanate, sodium behenate, sodium stearate, sodium 12-hydroxystearate, sodium oleate, and sodium laurate are preferred because they are easily effective.
• anionic surfactants (D) may be used alone or in combination of two or more in any ratio.
• the water used in the aqueous dispersion of the present invention may be any water that does not react with the components in the aqueous dispersion to produce components that inhibit dispersion such as water-insoluble matter, such as hard water, soft water, ion exchange water, Examples include ultrapure water.
• water-insoluble matter such as hard water, soft water, ion exchange water
• examples include ultrapure water.
• the aqueous dispersion of the present invention contains an anionic surfactant (D)
• neutral or basic water may be used from the viewpoint of suppressing the reaction with the anionic surfactant (D). preferable.
• the content of the nonionic surfactant (B) or surfactant (B') in the aqueous dispersion of the present invention is 0.1 to 200 parts by mass based on 100 parts by mass of the binder resin (A).
• the amount is preferably 0.5 to 150 parts by weight, more preferably 1 to 120 parts by weight, particularly preferably 3 to 90 parts by weight, and most preferably 10 to 50 parts by weight.
• the content of the nonionic surfactant (B) or surfactant (B') in the present invention needs to be 2 parts by mass or more, preferably 2 parts by mass or more, based on 100 parts by mass of the wax component (C). is from 2 to 5,000 parts by weight, more preferably from 20 to 4,500 parts by weight, even more preferably from 100 to 4,000 parts by weight, and most preferably from 200 to 1,500 parts by weight.
• the high content of the nonionic surfactant (B) or surfactant (B') relative to the wax (C) provides excellent oil resistance and dispersion stability.
• the content of the nonionic surfactant (B) or surfactant (B') is small, water and oil resistance tend to be excellent.
• the content of wax (C) in the aqueous dispersion of the present invention is preferably 0.1 to 40 parts by mass, more preferably 0.3 to 30 parts by mass, based on 100 parts by mass of binder resin (A). , more preferably 0.5 to 20 parts by mass.
• a small content of wax (C) relative to binder resin (A) tends to result in a small particle size and excellent dispersion stability, while a large content tends to result in excellent water and oil resistance of the resulting coating film. There is.
• the content of the anionic surfactant (D) is the nonionic surfactant (B) or the surfactant (B'). and anionic surfactant (D), preferably 0.5 to 50 parts by weight, more preferably 0.7 to 40 parts by weight, even more preferably 1 to 30 parts by weight, especially Preferably it is 5 to 20 parts by mass.
• anionic surfactant (D) preferably 0.5 to 50 parts by weight, more preferably 0.7 to 40 parts by weight, even more preferably 1 to 30 parts by weight, especially Preferably it is 5 to 20 parts by mass.
• the total content of the binder resin (A) and the nonionic surfactant (B) or the surfactant (B') and the wax component (C) relative to components other than water is 50%. It is preferable that it is at least % by mass. More preferably, it is 70% by mass or more.
• the effect of the present invention due to the inclusion of these components is due to the large total content of the binder resin (A) and the nonionic surfactant (B) or the surfactant (B') and the wax component (C). can be obtained effectively.
• the aqueous dispersion of the present invention may further contain pulp fibers.
• pulp fibers When the aqueous dispersion of the present invention contains pulp fibers, entanglement with the pulp fibers is expected, and the effect of improving water and oil resistance is achieved.
• pulp fibers used in the aqueous dispersion of the present invention include hardwood pulp and softwood pulp derived from wood, and straw pulp, bagasse pulp, and kenaf pulp derived from non-wood.
• the fiber diameters range from those defibrated to the nano level to those on the order of several centimeters.
• pulp fibers there are pulp fibers ranging from nano-order to several centimeters in length, and these pulp fibers may be used alone or in combination of two or more in any ratio.
• the content of the pulp fibers is the binder resin (A) and the nonionic surfactant (B) or the specific surfactant (B') and the wax component (C).
• the amount is preferably 0.1 to 1000 times by mass, particularly preferably 1 to 100 times by mass, relative to the total amount.
• the pulp fiber content is within these ranges, the above-mentioned effects due to the inclusion of pulp fibers tend to be effectively obtained.
• the content of water is preferably large because the aqueous dispersion tends to have low viscosity and excellent fluidity. On the other hand, it is preferable to have a small amount since water and oil resistance and heat sealability tend to be easily developed when a substrate is coated with an aqueous dispersion.
• the water content of the aqueous dispersion of the present invention is preferably 30% by mass or more, more preferably 40% by mass or more, even more preferably 50% by mass or more, while preferably 99% by mass or more. It is at most 95% by mass, more preferably at most 95% by mass, and even more preferably at most 90% by mass.
• the solid content concentration (total amount of components other than water contained in the aqueous dispersion of the present invention) of the aqueous dispersion of the present invention is low in that the aqueous dispersion has low viscosity and excellent fluidity. It is preferable. Therefore, the solid content concentration of the aqueous dispersion of the present invention is preferably 70% by mass or less, more preferably 65% by mass or less, and particularly preferably 60% by mass or less. On the other hand, from the viewpoint of ensuring the content of each component and the viewpoint of ensuring film formability, the solid content concentration of the aqueous dispersion of the present invention is preferably 1% by mass or more, and preferably 5% by mass or more. The content is more preferably at least 10% by mass, even more preferably at least 15% by mass.
• the aqueous dispersion of the present invention may contain other low-molecular and high-molecular emulsifiers, alcoholic compounds, etc. within the range that does not impair the effects of the present invention.
• low-molecular emulsifiers include nonionic low-molecular emulsifiers such as fatty acid diethanolamide, polyoxyethylene alkyl ether, and polyoxyethylene alkyl phenyl ether, ⁇ -sulfo fatty acid ester salts, alkylbenzene sulfonates, alkyl sulfates, and alkyl Examples include anionic low-molecular emulsifiers such as ether sulfate ester salts and alkyl sulfate triethanolamines.
• polymer emulsifiers include polyvinyl alcohol, polyoxyethylene alkyl ether, polyoxypropylene/polyoxyethylene block copolymers, nonionic polymer emulsifiers such as polymer starch, styrene/maleate copolymers, and naphthalene.
• Anionic polymer emulsifiers such as formalin bound sulfonates, polyacrylates, carboxymethyl cellulose metal salts, olefin/maleate copolymers, polystyrene sulfonates, acrylamide/acrylate copolymers, alginates, etc. Examples include.
• alcohol compounds include higher alcohols such as cetanol and stearyl alcohol, (poly)ethylene glycol, (poly)propylene glycol, polytetramethylene ether glycol, polycarbonate diol, glycerin, trimethylolpropane, pentaerythritol, erythritol, Examples include polyols such as sorbitol and isosorbide.
• polyols such as (poly)ethylene glycol, (poly)propylene glycol, trimethylolpropane, polytetramethylene ether glycol, polycarbonate diol, glycerin, trimethylolpropane, pentaerythritol, sorbitol, and isosorbide have good dispersion stability. This is preferable as it tends to be high.
• the blending amount of these additives is set appropriately for each additive, but for example, a total of 100 mass of component (A), component (B), component (C), and component (D) used as necessary. It is preferably 50 parts by mass or less, particularly preferably 30 parts by mass or less. If the amount is small, the viscosity and particle size of the dispersion tend to become small.
• the aqueous dispersion of the present invention also includes antifoaming agents, preservatives, smoothing agents, antistatic agents, flame retardants, tackifiers, fillers, Other additives such as ultraviolet absorbers, colorants, antioxidants, functional pigments, inorganic particles, and organic solvents can be blended.
• the blending amount of these additives is appropriately set for each additive, but, for example, it is preferably 10% by mass or less, particularly preferably 5% by mass or less, based on the aqueous dispersion.
• the viscosity of the aqueous dispersion of the present invention is preferably low in terms of excellent workability when handling the aqueous dispersion. Therefore, the viscosity of the aqueous dispersion of the present invention is preferably 5,000 mPa ⁇ s or less, more preferably 3,500 mPa ⁇ s or less, even more preferably 2,000 mPa ⁇ s or less, particularly preferably 1 ,000 mPa ⁇ s or less, most preferably 500 mPa ⁇ s or less.
• the viscosity of the aqueous dispersion of the present invention is usually 0.1 mPa ⁇ s or more, preferably 1 mPa ⁇ s or more, and more preferably 10 mPa ⁇ s or more, from the viewpoint of improving coating properties.
• the viscosity in the present invention is a value measured using a B-type viscometer at a temperature of 25° C. and a shear rate of 100 rpm (unit: mPa ⁇ s).
• the average particle diameter of the emulsion in the aqueous dispersion of the present invention is preferably small in terms of workability when handling the aqueous dispersion. Therefore, the average particle diameter of the emulsion in the aqueous dispersion of the present invention is preferably smaller than 100 ⁇ m, more preferably 50 ⁇ m or less, still more preferably 10 ⁇ m or less.
• the average particle diameter in the present invention is a value measured (in ⁇ m) at a temperature of 25° C. using a laser diffraction device (laser diffraction scattering method).
• the aqueous dispersion of the present invention can be produced according to a generally known method for producing an aqueous dispersion or an emulsion.
• a method may be mentioned in which each component is blended in the following order. i) Method of dispersing the nonionic surfactant and wax component in water and then blending the binder resin ii) Method of mixing the nonionic surfactant, wax component, and binder resin in advance and then blending with water iii ) Method of dispersing binder resin in water and then blending nonionic surfactant and wax component Among these methods, method i) is preferable in terms of workability and productivity.
• the conditions for mixing each component are preferably as follows.
• the mixing time in each step is preferably long in order to easily obtain a liquid in which each component is sufficiently dispersed, and short in terms of excellent productivity of the aqueous dispersion. Therefore, the mixing time is usually 10 minutes to 24 hours, preferably 20 minutes to 6 hours.
• the mixing temperature in each step is preferably a temperature at which water does not easily coagulate or evaporate, and is usually 0 to 100°C, preferably 40 to 90°C.
• the cooling method when heated to room temperature or higher methods commonly used for cooling can be used, such as a method in which the material is brought into contact with a refrigerant to rapidly cool it, a method in which it is brought into contact with an air environment and allowed to cool naturally. These methods are selected from among various methods, taking into consideration the production volume and industrial efficiency of the aqueous dispersion to be prepared.
• the pressure in each step may be normal pressure, or may be carried out under increased pressure or reduced pressure.
• These methods are variously selected depending on the properties of the aqueous dispersion to be prepared (concentration, viscosity, particle size, production amount, etc.) and the following dispersion method.
• a method for dispersing each component in water methods that apply various shearing forces generally used when preparing a dispersion liquid can be used, such as stirring, shaking, ultrasonic waves, and mechanical extrusion. Various methods are selected depending on the properties (concentration, viscosity, particle size, production amount, etc.) of the aqueous dispersion to be prepared.
• the aqueous dispersion of the present invention can be used as an additive for foods, cosmetics, pharmaceuticals, etc., as well as antifogging agents, antistatic agents, compatibilizers, paints, coating agents, agents for imparting water and oil resistance to paper, and adhesives. It is useful in a variety of applications, including as a dispersant for various organic and inorganic particles and as an additive for thermoplastic and thermoset resins.
• the aqueous dispersion of the present invention is suitable as a coating agent for various substrates. It is particularly suitable as a coating agent for packaging materials such as food packaging materials. Furthermore, the aqueous dispersion of the present invention is suitable as a water- and oil-resistant coating agent or a heat-sealable coating agent for various base materials. Further, the substrate to be coated with the aqueous dispersion of the present invention is preferably a paper substrate, a plastic substrate, a fiber or a wood substrate, preferably a paper substrate or a plastic substrate, and particularly preferably a paper substrate. It is suitable as a coating agent.
• a paper product can be made that has a coating layer formed by coating or impregnating one or both sides of a paper base material with the aqueous dispersion of the present invention.
• a paper product can be obtained by mixing the aqueous dispersion of the present invention with a pulp slurry and making paper.
• a laminate having a coating layer formed by applying the aqueous dispersion of the present invention to one or both sides of paper, plastic substrate, or wood substrate can be obtained. The base material of the laminate will be described later.
• a film can be formed on a substrate by using the aqueous dispersion of the present invention and volatilizing components such as water from the aqueous dispersion. That is, by using the aqueous dispersion 1 of the present invention, a film containing a binder resin (A), a nonionic surfactant (B), and a wax component (C), which contains the nonionic surfactant ( The content of B) is 0.1 to 200 parts by mass based on 100 parts by mass of the binder resin (A), and 2 parts by mass or more based on 100 parts by mass of the wax component (C).
• a film according to another embodiment of the present invention is a film containing a binder resin (A), a surfactant (B), and a wax component (C), the film having a birefringent phase ( This is a film characterized by containing X).
• This membrane can also be obtained using the aqueous dispersion of the present invention.
• phase (X) in the film having the above-mentioned birefringence is a phase in which the surfactant (B) forms a liquid crystal structure such as a lamellar phase.
• This is the phase obtained by When a coating film having a birefringent phase (X) in the present invention is observed with a polarizing microscope, interference fringes and particles having optical anisotropy are confirmed.
• a birefringent phase (X) in the film it becomes possible to obtain a coating film with excellent water and oil resistance.
• a film according to yet another embodiment of the present invention is a film containing a binder resin (A), a surfactant (B), and a wax component (C), wherein the surface of the film is measured by scanning probe microscopy.
• This film is characterized by a roughness Ra of 10 to 100 nm.
• This membrane can also be obtained using the aqueous dispersion of the present invention.
• the surface roughness Ra of the film of the present invention is 1 nm or more, excellent water and oil resistance effects can be expected due to the lotus effect.
• the thickness is 200 nm or less, the effects of the present invention are more likely to be exhibited. From these viewpoints, the surface roughness Ra of the film of the present invention is more preferably from 1 to 200 nm, and even more preferably from 3 to 150 nm.
• each component and composition in the film of the present invention are the same as each component other than water and its composition in the aqueous dispersion of the present invention described above.
• the film of the present invention be thick so that it can easily cover the base material, has high strength, and is difficult to chip due to friction or the like.
• the membrane be thin, since the cost of raw materials for the membrane can be suppressed and the membrane is less likely to peel off from the base material when force is applied. Therefore, the film thickness of the film of the present invention is preferably 0.1 ⁇ m or more, more preferably 0.2 ⁇ m or more, even more preferably 0.5 ⁇ m or more, and preferably 30 ⁇ m or less. , more preferably 25 ⁇ m or less, even more preferably 20 ⁇ m or less, particularly preferably 15 ⁇ m or less.
• the film thickness of the film of the present invention is preferably 0.1 to 30 ⁇ m, more preferably 0.2 to 20 ⁇ m, and even more preferably 0.5 to 15 ⁇ m.
• the coating amount of the film of the present invention is preferably large in that it is easy to coat the substrate reliably, the film has high strength, and is resistant to chipping due to friction or the like. On the other hand, it is preferable that the amount is small because it reduces the cost of raw materials for the membrane and makes it difficult for the membrane to peel off from the base material when force is applied. Therefore, the coating amount of the film of the present invention is preferably 0.1 to 100 g/m 2 , and preferably 0.5 to 50 g/m 2 as solid content after removing volatile components such as water. It is more preferable, and particularly preferably 1 to 30 g/m 2 .
• the membrane of the present invention has excellent water and oil resistance and heat sealability. That is, the film of the present invention is suitable for use as a water- and oil-resistant film and a heat-seal film. Furthermore, the membrane of the present invention is preferably used for packaging materials because it has excellent water and oil resistance and heat sealability, and more preferably used for food packaging materials because it is also excellent in safety. That is, a packaging material having the membrane of the present invention and a food packaging material having the membrane of the present invention can be obtained.
• the membrane of the present invention By using the aqueous dispersion of the present invention, the membrane of the present invention can be obtained. Then, the laminate of the present invention can be obtained by laminating the film of the present invention on a base material. That is, it is possible to obtain a laminate having a coating film formed using the aqueous dispersion of the present invention on the surface of the base material.
• the base material is preferably paper, plastic, fiber, or the like. That is, it is possible to obtain a laminate having a base material of at least one of paper, plastic, and fiber and the membrane of the present invention.
• Examples of the paper base material include wood-free paper, medium-quality paper, coated paper, foil paper, glassine paper, paraffin paper, and parchment paper.
• the above plastic base materials include polyethylene, polypropylene, polyethylene terephthalate, polyethylene naphthalate, vinyl chloride, polystyrene, acrylic, polycarbonate, polyphenylene sulfide, fluororesin, polyetheretherketone, polyethersulfone, aramid, polyimide, polyamide, cellophane. , triacetylcellulose, and the like.
• Examples of the fibers include natural fibers such as cotton, silk, hemp, wool, and cashmere, regenerated fibers such as rayon, and synthetic fibers such as polyester fibers, nylon fibers, acrylic fibers, and polyurethane fibers.
• paper base materials cellophane, and triacetyl cellulose, which have a high affinity for water and can be easily coated with an aqueous dispersion, are preferred, and paper is particularly preferred.
• ⁇ Aqueous dispersion viscosity> The viscosity of the prepared aqueous dispersion was measured one day after preparation, and evaluated based on the following criteria. The viscosity was measured using a B-type viscometer at a temperature of 25° C. and a shear rate of 100 rpm (unit: mPa ⁇ s). (Evaluation criteria) ⁇ ...1000 mPa ⁇ s or less ⁇ ...Higher than 1000 mPa ⁇ s and lower than 5000 mPa ⁇ s ⁇ ...5000 mPa ⁇ s or more
• ⁇ Coated paper water contact angle> 2 ⁇ L of water was dropped onto the paper base coated with the prepared aqueous dispersion or toluene solution, and the water contact angle after 1 second was measured using a solid-liquid interface analyzer (“DropMaster 500” manufactured by Kyowa Interface Science Co., Ltd.). , was evaluated using the following criteria.
• the water contact angle of the paper base material before coating with the aqueous dispersion was 36.1°, giving an evaluation of ⁇ . (Evaluation criteria) ⁇ ...95° or more ⁇ ...More than 50° and smaller than 95° ⁇ ...50° or less
• A-1 Acrylic emulsion (trade name: FILLHARMO (registered trademark) NS215, manufactured by Toyochem Co., Ltd., solid content concentration 41% by mass)
• A-2 Styrene-acrylic emulsion (product name: FILLHARMO (registered trademark) GS500, manufactured by Toyochem Co., Ltd., solid content concentration 45.5% by mass)
• A-3 Water-based polyester resin (product name: Nichigo Polyester (registered trademark) WR-905, manufactured by Mitsubishi Chemical Corporation, solid content concentration 20% by mass)
• B-1 Stearic acid-based sucrose fatty acid ester (product name: Ryoto (registered trademark) Sugar Ester S-370, manufactured by Mitsubishi Chemical Corporation)
• B-2) Sorbitan monostearate (product name: Emazol S-10V, manufactured by Kao Corporation)
• C-1 Rice bran wax (product name: NatureFine R331, manufactured by DSP Gokyo & Food Chemical Co., Ltd., melting point 77-82°C)
• C-2 Solid paraffin (manufactured by Kishida Chemical Co., Ltd., melting point 66-68°C)
• D-1 Sodium stearate (trade name: sodium stearate, manufactured by Nitto Kasei Kogyo Co., Ltd.)
• E-1 Antifoaming agent (product name: XIAMETER (registered trademark) ACP-1500, manufactured by Dow Toray Industries, Inc.)
• Coating and evaluation After coating glassine paper (basis weight 25.8 g/m 2 , manufactured by Shimojima Co., Ltd.) as a paper base material with an aqueous dispersion or toluene solution prepared using an applicator (coating amount after drying 10 g/m 2 ), Coated paper was obtained by heating and drying at 120° C. for 5 minutes. The water contact angle, water resistance, water absorption, oil resistance, and heat sealability of the obtained coated paper were measured, and the results are shown in Tables 1 to 3.
• a PET film (product name: Lumirror #25-T60, manufactured by Toray Industries, Inc.) was coated with an aqueous dispersion or toluene solution prepared using an applicator (coating amount after drying: 10 g/m 2 ), and then heated at 120°C.
• a PET film with a coating film was obtained by heating and drying for 5 minutes.
• the presence or absence of a birefringent phase (X) in the coating film was confirmed, and the results are shown in Tables 1 to 3.
• Examples 1 to 10 had low water absorption and high water resistance, as well as high oil resistance. That is, it was confirmed that the membrane produced using the aqueous dispersion of the present invention has water and oil resistance. In addition, Examples 1 and 2 also confirmed that it also had heat sealability. In Examples 1 and 2, the coating film had a birefringent phase (X), whereas only the binder resin of Comparative Example 1 and the aqueous dispersion without adding the wax (C) of Comparative Example 2 were used as paper bases. When coated on a material, it was confirmed that the coating film did not have a birefringent phase (X) and had high water absorption, low water resistance, and low oil resistance.
• X birefringent phase
• Comparative Example 8 in which the content of the surfactant (B) component relative to the binder resin (A) was outside the range (large amount) of the aqueous dispersion of the present invention, the water resistance of the coated paper was evaluated as ⁇ .
• Comparative Example 7 in which the content of the surfactant (B) component with respect to the binder resin (A) was outside the range (low) of the aqueous dispersion of the present invention, had a lower coating paper water contact angle and a lower coating paper oil resistance. The evaluation was ⁇ .
• Example 8 and Comparative Example 4, and Example 9 and Comparative Example 5 even when styrene-acrylic emulsion or water-based polyester resin is used as the binder resin (A), the surfactant (B) component and the wax component ( It was confirmed that by using C) in combination, a film having excellent water and oil resistance can be obtained.
• the aqueous dispersion of the present invention is useful as a water- and oil-resistant coating agent or a heat-sealable coating agent, and is used as an additive for foods, cosmetics, pharmaceuticals, etc., as well as antifogging agents, antistatic agents, compatibilizers, paints, and adhesives. It is useful in a variety of applications including adhesives, dispersants for various organic and inorganic particles, and additives for thermoplastic and thermoset resins.

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• 2023
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