WO1997004016A1 - Emulsion aqueuse contenant de fines particules de copolymeres allyliques reticules - Google Patents
Emulsion aqueuse contenant de fines particules de copolymeres allyliques reticules Download PDFInfo
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- WO1997004016A1 WO1997004016A1 PCT/JP1996/001963 JP9601963W WO9704016A1 WO 1997004016 A1 WO1997004016 A1 WO 1997004016A1 JP 9601963 W JP9601963 W JP 9601963W WO 9704016 A1 WO9704016 A1 WO 9704016A1
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- monomer
- emulsion
- acrylate
- acid
- diaryl
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/14—Esters of polycarboxylic acids
- C08F218/16—Esters of polycarboxylic acids with alcohols containing three or more carbon atoms
- C08F218/18—Diallyl phthalate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/242—Applying crosslinking or accelerating agent onto compounding ingredients such as fillers, reinforcements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L31/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
- C08L31/06—Homopolymers or copolymers of esters of polycarboxylic acids
- C08L31/08—Homopolymers or copolymers of esters of polycarboxylic acids of phthalic acid
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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
- C09D131/00—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 acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
- C09D131/06—Homopolymers or copolymers of esters of polycarboxylic acids
- C09D131/08—Homopolymers or copolymers of esters of polycarboxylic acids of phthalic acid
-
- 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
Definitions
- the present invention is useful as a paint, a coating agent or an adhesive, and is also useful as a resin filler or a resin modifier. It relates to an aqueous emulsion containing coalesced fine particles.
- a diaryl phthalate resin decorative board has been prepared by applying a decorative paper impregnated with diaryl phthalate small prevolimer to the surface of a base material such as plywood, particle board, medium fiber board (MDF), or slate board. It is obtained by curing and integrating, and has been used in many fields as a high-grade decorative panel.
- the impregnated paper used is a resin composition containing diaryl phthalate prepolymer as a main component, dissolved in an organic solvent for dissolving them, for example, a solvent such as acetone, methyl ethyl ketone, and toluene. Made, impregnated in decorative paper, and dried.
- Patents relating to emulsion copolymerization of aryl-based monomers and vinyl-based monomers as systems using no organic solvent have been disclosed so far, but have many problems in film-forming properties and the like.
- Japanese Patent Publication No. 45-35991 / 14 discloses an emulsion polymerization in which an unsaturated acid is added as an essential component for facilitating the polymerization reaction between a diaryl ester of a dibasic acid and an addition-polymerizable monomer. .
- the amount of the unsaturated acid in the present invention is as large as 5 to 20% by weight of the total monomers.
- the amount of unsaturated acid is 5% by weight or less, there is a problem in copolymerizability of dibasic acid with diaryl ester.
- styrene is used as an essential addition polymerization monomer in the presence of dibasic acid. Examples of emulsion copolymerization with a diaryl ester are described.
- a large amount of unsaturated acid is not preferable because of a problem in water resistance of the obtained copolymer.
- the invention described in Japanese Patent Publication No. 52-49032 discloses diaryl phthalate of 30 to 90 mol% (36 to 96 wt%), acrylate ester of 10 to 70 mol% (3 to 90 mol%).
- the film forming property is obtained by expressing the plasticizing effect while leaving it.
- a radical initiator is added later during molding.
- the coating film obtained above undergoes large shrinkage and requires hot pressing.
- the invention described in Japanese Patent Publication No. 51-184475 discloses emulsion polymerization of 50 to 90% by weight of diaryl phthalate and 10 to 50% by weight of acrylate ester with an anionic nonionic amphoteric surfactant. This is blended with other polymer emulsions to provide anti-blocking properties.
- the polymerization rate in the present invention is 50 to 90%, and this emulsion composition alone has no film-forming property.
- JP-B-57-262924 describes an emulsion obtained by polymerizing diaryl phthalate alone or with another vinyl monomer at a polymerization rate of 50% or more.
- a large amount of acrylate emulsion The disadvantage is that a water-soluble polymer must be added after blending the components. In the examples, only those having a polymerization rate of 70% or less are mentioned.
- Japanese Patent Publication No. 52-6753 (corresponding to U.S. Pat. Nos. 3,936,661 and 4,017,334) and Japanese Patent Publication No. 52-500072 Japanese Patent Publication (corresponding to U.S. Pat. No. 3,975,349), Japanese Patent Publication No. 51-31,259, and Japanese Patent Publication No.
- arylnoacrylate ester emulsion composition there is a description of an arylnoacrylate ester emulsion composition, but in any case, the polymerization of diaryl phthalate is stopped halfway, leaving unreacted monomer, which forms a binder between the particles and forms a film. Has sex. For this reason, it is necessary to react the unreacted monomer again when forming the coating film, and a curing reaction is performed by adding a catalyst.
- the present invention provides a cross-linking film having good film-forming properties even when diaryl phthalate is substantially completely polymerized by performing emulsion polymerization with a specific monomer composition, that is, without leaving unreacted monomers. It provides an aqueous emulsion containing copolymer fine particles.
- ⁇ To increase the water resistance of the coating film, ⁇ ,; 5-unsaturated force The compounding of rubonic acid is suppressed as much as possible, and the crosslinking between fine particles is itself achieved.
- Emulsion copolymerization with diaryl phthalate using a specific acrylate ester to contribute to the reaction and to give film forming properties is useful not only as a paint, coating agent or adhesive, but also
- An object of the present invention is to provide a water-based emulsion containing fine particles of a crosslinked copolymer useful as a filler for a resin.
- the present invention relates to (a) 10 to 40% by weight of diaryl phthalate, (b) less than 0.1 to 5% by weight of an ⁇ , ⁇ -unsaturated carboxylic acid, and (c) the remaining alcohol having an alcohol number of 1 to (A)
- the average particle size of the monomer obtained by emulsion copolymerization of the monomer comprising the acrylate ester to (a) the polymerization rate of diaryl phthalate to 85% or more is 2%.
- an aqueous emulsion containing fine particles of an aryl-based crosslinked copolymer having a diameter of 100 nm or less.
- the present invention provides an emulsion composition
- a crosslinking agent capable of reacting with a carboxyl group.
- the present invention provides an aryl-based crosslinked copolymer granule obtained by drying the above emulsion.
- Diaryl phthalate used in the present invention is a general term for ortho, iso and tele forms, and one or a combination thereof may be used.
- the a, / 3-unsaturated carboxylic acid preferably has 3 to 8 carbon atoms.
- ⁇ , ⁇ monounsaturated carboxylic acid acrylic acid, methacrylic acid, crotonic acid, maleic acid, itaconic acid and the like are particularly preferable, and one or more of these may be used in combination. good.
- an ester having 1 to 8 carbon atoms in the alcohol for example, methyl acrylate, ethyl acrylate, propyl acrylate, isopropyl acrylate, butyl acrylate, isobutyl acrylate, and acrylic acid 2 —Ethylhexyl, octyl acrylate, and the like are preferable, and one or more of them may be used in combination. Even if methacrylic acid is used instead of acrylic acid as the acid component of the ester, an aqueous emulsion containing fine particles having film-forming properties cannot be obtained.
- ester amides such as methacrylic ester, maleic ester, fumaric ester, itaconic ester, acetoacetoxy ester, as long as part of the acrylate ester is not impaired in the film forming property.
- ⁇ ⁇ -unsaturated nitriles, such as methacrylonitrile, methacrylonitrile, methacrylonitrile, etc.
- Group-containing vinyl compounds 2-hydroxy Hydroxyl-containing vinyl compounds such as ethyl acrylate, 2-hydroxypropyl acrylate, and 2-hydroquinethyl methacrylate; acrylic acid esters or methacrylic acid containing fluorinated alcohol components such as trifluoroethyl acrylate and trifluoroethyl methacrylate It may be substituted with an acid ester or the like.
- the proportion is 40% by weight or less in the component (c).
- the amount of (a) diaryl phthalate is less than 10% by weight, the surface becomes tacky when the coating film is formed, and the solvent resistance is poor, so that the practicality is poor.
- the amount of diaryl phthalate exceeds 40% by weight, that is, (c) when the amount of the acrylate decreases, the film-forming property becomes poor.
- the amount of diaryl phthalate may in particular be between 12 and 38% by weight, for example between 15 and 35% by weight.
- the amount of a, ⁇ monounsaturated carboxylic acid is preferably from 0.3 to 4% by weight, for example, from 0.5 to 4% by weight. It may be 4% by weight.
- an emulsifier and a polymerization initiator are added at a total concentration of the above monomers (a), (b) and (c) of 5 to 60% by weight in water. It can be obtained by emulsion polymerization at a polymerization temperature of 40 to 100 ° C, preferably 50 to 90 ° C, so that the conversion of diaryl phthalate is 85% or more.
- the monomers may be added all at once, or may be added sequentially according to the course of the reaction.
- a monomer obtained by emulsifying the monomer with an emulsifier may be used.
- the reaction is usually carried out with stirring, and the stirring can be carried out using a disperser, a homomixer or the like in addition to the usual stirring method. In addition, it can be performed with or without stirring under the condition of ultrasonic irradiation.
- the polymerization rate of diaryl phthalate is preferably 90% or more, more preferably 92% or more, and particularly preferably 94% or more.
- the gel fraction of the copolymer may be at least 88%, especially at least 90%.
- the average particle diameter of the aryl cross-linked copolymer fine particles contained in the emulsion of the present invention is preferably 200 nm or less from the viewpoint of its use. If the average particle size exceeds 200 nm, the gloss and gloss will be insufficient.
- the average particle size may in particular be less than 15 Onm, for example less than 100 nm.
- An emulsion of fine particles having an average particle diameter of 200 nm or less can be obtained by carrying out emulsion polymerization using an emulsifier in an amount of 0.1 to 10% by weight, preferably 0.5 to 7% by weight based on all monomers.
- the emulsifier may be added in a batch at the beginning, or may be divided and supplied according to the progress of the reaction.
- the amount of the emulsifier used is as small as 0.1% by weight, agglomerates are easily formed during the polymerization. If the amount exceeds 10% by weight, no improvement in the reaction stability is observed, and the water resistance of the resin is reduced.
- a cationic, anionic, nonionic, amphoteric, anionic-nonionic mixed or composite type surfactant is used, and usually, anionic, anionic-nonionic mixed surfactants are used.
- Systemic or composite surfactants give favorable results.
- Examples of the cationic system include primary amine hydrochloride, secondary amine hydrochloride, tertiary amine hydrochloride, and quaternary ammonium salt.
- Fatty acid salts Fatty acid salts, sulfates of higher alcohols, sulfates of liquid fatty oils, sulfates of aliphatic amines and amides, sulfates of aliphatic alcohols, sulfonates of fatty acid esters, and dibasic fatty acid esters And sulfonates of aliphatic amides, alkylaryl sulfonates, and formalin condensed naphthalene sulfonates.
- Nonionics include polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene aryl ether, polyoxyethylene polyoxypropylene aryl ether, polyoxyethylene alkyl aryl ether, Examples thereof include polyoxyethylene polyoxypropylene alkylaryl ether, polyoxyethylene alkyl ester, polyoxyethylene polyoxypropylene alkyl ester, sorbitan alkyl ester, and polyoxyethylene sorbitan alkyl ester.
- amphoteric surfactant examples include an amino acid type, a betaine type, a sulfate type, a sulfonate type and a phosphate type.
- anion-nonion mixed system the above-described anion-based and nonionic-based surfactants can be appropriately mixed and used.
- Polyanion-nonion composite systems include polyoxyethylene alkylaryl ethers, polyoxyethylene alkyl ethers, and polyoxyethylenepolyoxy.
- Sulfuric acid of nonionic surfactants such as propylene alkyl ethers, polyoxyethylene aryl ethers, polyoxyethylene polyoxypropylene aryl ethers, and polyoxyethylene polyoxypropylene alkyl aryl ethers Examples thereof include an ammonium salt, a sodium salt, and a potassium salt of an ester or a phosphoric acid ester.
- a reactive emulsifier having a polymerizable double bond in one molecule does not hinder the present invention.
- Sanyo Chemical Industry Co., Ltd. As a specific example, Sanyo Chemical Industry Co., Ltd.
- Reminol JS-2, RS-30 trade name of Daiichi Kogyo Seiyaku Co., Ltd. Aqualon RN-20, RN-30, RN-50, HS-10, HS-20, HS-1025 New Frontier And trade names of Nippon Emulsifier Co., Ltd. Antox MS-60, RMA-1120, RMA-50 C ⁇ U, and the like.
- Examples of the use form of the reactive emulsifier include a single use, a combined use of two or more different types of reactive emulsifiers, and a combined use with an emulsifier other than the reactive emulsifier.
- the polymerization initiator used in the present invention is preferably a water-soluble radical generator, for example, ammonium persulfate, potassium persulfate, sodium persulfate, hydrogen peroxide, a water-soluble azo or redox type.
- a water-soluble radical generator for example, ammonium persulfate, potassium persulfate, sodium persulfate, hydrogen peroxide, a water-soluble azo or redox type.
- water-soluble azo-based polymerization initiator examples include 2,2-azobis (2-methyl-N-phenylpropionamidine) dihydrochloride and 2,2-azobis (N— (4-chlorophenol) 1-2) Methylpropionamidine) dihydrochloride, 2,2-azobis (2-methyl-1-N- (phenylmethyl) propionamidine) dihydrochloride, 2,2-azobis (2-methyl-N— (2-pronilyl) ) Propionamidine) hydrochlorides of azo compounds containing amino and imino groups such as dihydrochloride, 2,2-azobis (2- (5-methyl-2-imidazoline-2-inole) propane) dihydrochloride , twenty two- Azobis (2- (2-imidazoline-2-inole) propane) dihydrochloride, 2,2-azozobis (2- (4,5,6,7-tetrahydraulot 1 H-1, 3-diazepine 1-2) C) Propane) dihydrochloride, 2,2-azobis
- redox polymerization initiators include a combination of potassium persulfate or ammonium persulfate with sodium bisulfite, sodium metabisulfite, sodium acid sulfite or Rongalite (sodium formaldehyde sulfoxylate dihydrate), Combinations of organic peroxides such as t-butyl hydroxide peroxide and cumene hydroxide and sodium acid sulfite or Rongalite can be mentioned.
- lipophilic peroxides such as benzoyl peroxide and tertiary butyl hydroperoxide, 2,2′-azobisisobutyronitrile, ⁇ , diazobis (semi-cyclohexane) Lipophilic azo compounds such as carbonitrile) can also be used as initiators.
- the amount of the polymerization initiator to be used is usually 0.05 to 5% by weight based on the monomer, and may be added all at once or sequentially.
- part or all of the acid groups formed as a by-product due to decomposition of the polymerization initiator and the hydroxyl group in the copolymer obtained by copolymerization are neutralized with a neutralizing agent. It is preferable to sum them.
- Examples of the neutralizing agent include inorganic alkalis such as potassium hydroxide and sodium hydroxide, ammonia, monomethylamine, dimethylamine, triethylamine, monoethylamine, getylamine, triethylamine, mono ⁇ -propylamine, dimethyl ⁇ -propylamine. , Monoethanolamine, Diethanolamine, triethanolamine, N-methylethanolamine, N-aminoethylethanolamine, N-methyljetanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, N, N-dimethylpropanol Examples thereof include amines such as amines, and one or more kinds selected from these can be used.
- Solvent resistance can be increased by adding a crosslinking agent to the emulsion thus obtained and crosslinking the emulsion.
- Crosslinking is carried out using the carboxylic group of the ⁇ -unsaturated carboxylic acid introduced into the copolymer as a crosslinking point.
- the crosslinking agent has a reactivity with a carboxyl group, and examples thereof include an amino resin and an epoxy compound.
- the amino resin examples include a thermosetting resin obtained by addition reaction of formaldehyde or paraformaldehyde to melamine, benzoguanamine, urea, etc., and a resin obtained by alkylating some or all of the methylol groups of the resin.
- melamine formaldehyde resins such as methylolated melamine, methylated methylolmelamine, butylated methylolmelamine, guanamine formaldehyde resins such as methylolated benzoguanamine, butylated methylol benzoguanamine, methylolated urea, methylated
- urea-formaldehyde resins such as methylol urea and butylated methylol urea.
- epoxy compound examples include bisphenol A epichlorohydrin type epoxy resin, novolak epichlorohydrin type epoxy resin, glycerin polyglycidyl ether, neopentyl diglycidyl ether, pentaerythritol polyglycidyl ether, diglycerol polyglycidyl ether, and polyglyceryl ether.
- a curing accelerator may be used at the time of the crosslinking.
- curing accelerators include para-toluenesulfonic acid, dodecylbenzenesulfonic acid, phosphoric acid, partial alkyl esters of phosphoric acid, oxalic acid, cunic acid, and ammonia, primary amine, secondary amine or tertiary amine.
- inorganic salts such as ammonium chloride and ammonium nitrate.
- the amount of the curing accelerator used is suitably in the range of 0.1 to 10% by weight based on the solid content of the emulsion.
- the desired physical properties can be obtained by subjecting the emulsion composition of the present invention to a heat treatment at 70 to 350 ° C., preferably 80 to 250 ° C.
- the crosslinking agent may be added as it is, or may be added as an emulsion using an emulsifier in advance.
- the amount of the crosslinking agent is suitably in the range of 1 to 40 parts by weight, preferably 2 to 30 parts by weight, based on 100 parts by weight of the solid content of the base emulsion. When the amount is less than 1 part by weight, the effect of the solvent resistance is insufficient, and when the amount exceeds 40 parts by weight, the coating film is formed. Sometimes the film itself becomes brittle and poor in flexibility.
- a pigment commonly used in paints for example, titanium dioxide, calcium carbonate, barium carbonate, kaolin, lead white, graphite, lead tin, strontium chromate, zinc chromate
- Inorganic pigments such as titanium yellow, cadmium yellow, navy blue, ultramarine blue, talc, my strength, barium sulfate, silica, titanium black, iron black, molybdenum red, molybdenum white, red iron black, insoluble azo, etc.
- Organic pigments such as dyes, soluble azo dyes, and phthalocyanines can be added.
- additives include film-forming agents, inorganic modifiers such as colloidal silica and tetraethoxysilane, plasticizers, solvents, dispersants, thickeners, gloss improvers, matting agents, defoamers, and preservatives
- inorganic modifiers such as colloidal silica and tetraethoxysilane
- plasticizers such as colloidal silica and tetraethoxy
- the aqueous emulsion containing the acryl-based crosslinked copolymer fine particles obtained by the emulsion copolymerization can be dried and used as a solid particulate.
- a drying method a method usually used in this technical field may be used. For example, salting-out drying, freeze-drying, and a spray drier are used, and a spray drier is preferable in terms of economy.
- the average particle diameter of the obtained solid particulates differs depending on the drying method, a particle having a diameter of 10 to 100 m is obtained in the present invention. It is also possible to use it after forming it into a pellet.
- the solid particles are mixed with a thermoplastic resin or a thermosetting resin, and modified with a resin such as a low-shrinkage agent, a cross-linking agent, an organic filler, a thickener, a thixotropic agent, a gloss-imparting agent, or an anti-glare agent. It can be used as an anti-glazing agent, a dispersing agent, a thickening agent, a thixotropic agent, a gloss-imparting agent, etc. by being added to a paint.
- the emulsion or emulsion composition of the present invention is coated on a substrate and dried to give a copolymer film on the substrate.
- Substrates include metals, wood, glass, cloth (eg, nonwovens), paper, plaster, slate, concrete, asphalt, plastic, and natural products. Coating can be done by brush, pickle, spray, bar coater, roller coat, roller brush coat, flow coater coat, curtain coater coat, and so on.
- the drying temperature may be from -10 to 130 ° C, more preferably from 1 to 90 ° C, and the drying time may be from 0.5 minutes to 48 hours, preferably from 0.5 minutes to 24 hours.
- a heat treatment is further performed to carry out a cross-linking reaction.
- the crosslinking temperature may be 70 to 250 ° C, preferably 90 to 240 ° C, more preferably 100 to 240 ° C, and the crosslinking time may be 0.5 minutes to 3 hours, preferably 1 minute to 1 hour. Drying and crosslinking can be performed simultaneously by setting heating conditions for crosslinking.
- the film obtained by drying or the crosslinked film obtained by further crosslinking has no cracks.
- the thickness of these films may be between 0.3 and 500 //, preferably between 0.3 and 200 ⁇ , more preferably between 0.5 and 100 °.
- the particle size was 100%, the average particle size was 139 nm, and the gel fraction was 98%.
- the polymerization rate was determined by measuring the remaining DAP and EA by gas chromatography and calculating as follows.
- Polymerization rate (%) (weight of charged monomer / weight of unreacted monomer) x 100
- the average particle size was measured using a laser particle size analysis system PHOTON CORRELAT ORLPA-3000 (manufactured by Otsuka Electronics Co., Ltd.).
- the gel fraction was measured as follows.
- emulsifier aqueous solution was prepared in a 1 L separable flask equipped with a stirrer, thermometer, condenser, gas inlet, and sampling port.
- Example 2 Using the same apparatus as in Example 2, the following aqueous emulsifier solution was prepared.
- EA 236.8 g (74% monomer) AA 3.2 g (1% monomer) Heat the internal temperature of the separable flask to 50 ° C, sufficiently purge with nitrogen, add 10% of the emulsified monomer prepared, and add 1.44 g of ammonium persulfate and sulfurous acid.
- a solution prepared by dissolving 0.58 g of sodium hydrogen in 10 g of water was added to each, and the mixture was reacted for 1 hour. Subsequently, the remaining emulsified monomers were successively added in 3.5 hours. Polymerization was further performed at 60 ° C. for 4.5 hours.
- the resulting emulsion had a solid content of 40%, a polymerization rate of 92.0% for DAP and 100% for EA, an average particle size of 139 nm, and a gel fraction of 96%.
- Emulsion polymerization was carried out in the same manner as in Example 1, except that the same apparatus and aqueous emulsifier solution as in Example 2 were used, and a monomer mixture having the following composition was used.
- the obtained emulsion had a solid content of 30%, a polymerization rate of DAP 91.2% and EA 100%, an average particle size of 95 nm, and a gel fraction of 92%.
- Example 2 Using the same apparatus as in Example 2, the following aqueous emulsifier solution was prepared.
- the resulting emulsion has a solid content of 30%, a polymerization rate of 94.1% for DAP and 99.8% for EA, an average particle diameter of 1 19 nm, and a gel fraction of 95. %Met.
- Example 2 Using the same apparatus as in Example 2, an emulsifier aqueous solution having the following composition was prepared, and a monomer having the following composition was mixed with the aqueous solution, and 1.2 g of ammonium persulfate was dissolved in 10 g of water. except that used was carried out emulsion polymerization in the same manner as in example 1 (aqueous emulsifier solution
- Example 2 Using the same apparatus as in Example 2, an emulsifier aqueous solution having the following composition was prepared, and emulsion polymerization was performed in the same manner as in Example 1 except that a monomer mixture having the following composition was used.
- Emulsifier aqueous solution Emulsifier aqueous solution
- Example 2 Using an apparatus similar to that in Example 2, an emulsifier aqueous solution having the following composition was prepared. Using a monomer mixture having the following composition, an aqueous solution prepared by dissolving 0.84 g of ammonium persulfate in 8 g of water was used to obtain a reaction temperature of 70%. . Emulsion polymerization was carried out in the same manner as in Example 2 except that C was carried out.
- Emulsifier aqueous solution Emulsifier aqueous solution
- Example 2 Using the same apparatus and aqueous emulsifier solution as in Example 2, a monomer mixture having the following composition was emulsion-polymerized at 80 ° C. for 12 hours by a monomer addition method. (However, the amount of polymerization initiator is 1.2 g)
- the obtained emulsion had a solid content of 30%, a polymerization rate of 98.5% for DAP and 99.7% for EA, an average particle diameter of 84 nm, and a gel fraction of 76%.
- Emulsion polymerization was carried out in the same manner as in Example 2 except that an emulsifier aqueous solution and a monomer mixture having the following compositions were used.
- Emulsifier aqueous solution Emulsifier aqueous solution
- Emulsifier aqueous solution Emulsifier aqueous solution
- Emulsion polymerization was carried out in the same manner as in Example 2 except that an emulsifier aqueous solution and a monomer mixture having the following compositions were used.
- Emulsifier aqueous solution Emulsifier aqueous solution
- the resulting emulsion has a solid content of 30%, and the conversion is 94.3% for DAP and 98.1% for MMA.
- the average particle size was 96 nm and the gel fraction was 95%.
- Equipped with stirrer, thermometer, condenser, gas inlet and sampling port The following materials were added to a 1 L separable flask, and an aqueous emulsifier solution was prepared.
- Emulsion polymerization was carried out in the same manner as in Example 9, except that the following emulsifier aqueous solution and emulsifying monomer having the following composition were used.
- Emulsifier aqueous solution Emulsifier aqueous solution
- the obtained emulsion has a solid content of 45%, a polymerization rate of DAP 96.6%,
- the EA was 100%, the average particle size was 121 nm, and the gel fraction was 95%.
- Emulsion polymerization was carried out in the same manner as in Example 9 except for using the following emulsifier aqueous solution and emulsifying monomer having the following composition, and using 0.54 g of ammonium persulfate.
- Emulsifier aqueous solution Emulsifier aqueous solution
- Polyoxetylene alkyl ether sulfate ester ammonium salt manufactured by Daiichi Kogyo Seiyaku Co., Ltd., trade name Hytenol NE-05) 2.2 g water 250 g emulsified monomer
- the obtained emulsion has a solid content of 45%, a polymerization rate of DAP 90.2%,
- the EA was 100%, the average particle size was 145 nm, and the gel fraction was 94%.
- Example 12 Emulsion polymerization was carried out in the same manner as in Example 9 except for using the following emulsifier aqueous solution and emulsifying monomer having the following composition, and using 0.54 g of ammonium persulfate.
- Emulsifier aqueous solution Emulsifier aqueous solution
- Polyoxyethylene alkyl ether phosphate ester ammonium salt (manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd., trade name: Plysurf M—208 B) 2.2 g water 250 g emulsifying monomer
- the obtained emulsion has a solid content of 45%, a polymerization rate of DAP 91.1%,
- Emulsion polymerization was carried out in the same manner as in Example 9 except for using the following emulsifier aqueous solution and emulsifying monomer having the following composition, and using 0.54 g of ammonium persulfate.
- Emulsifier aqueous solution Emulsifier aqueous solution
- the obtained emulsion has a solid content of 45%, a conversion of 93.5% DAP,
- the EA was 100%, the average particle size was 120 nm, and the gel fraction was 96%.
- Emulsion polymerization was carried out in the same manner as in Example 9, except that 0.72 g of ammonium persulfate was used, using the following emulsifier aqueous solution and emulsifying monomer having the following composition.
- Emulsifier aqueous solution Emulsifier aqueous solution
- the obtained emulsion had a solid content of 45%, a polymerization rate of DATP of 95.1%, EA of 100%, an average particle size of 88 nm, and a gel fraction of 97%.
- Table 1 shows the results for the emulsions obtained in Examples 1 to 8 and Comparative Examples 1 to 4, and Table 2 shows the results for the emulsions obtained in Examples 9 to 14.
- EA stands for ethyl acrylate
- BA is butyl acrylate
- 2-Et HA is 2-ethylhexyl acrylate
- MMA is methyl methacrylate
- DAP is diaryl orthophthalate
- DATP is diaryl terephthalate
- AA acrylic acid.
- a cross-linking agent was added thereto in the proportions shown in Table 3 to prepare emulsion compositions.
- the composition was applied to the surface of a printed tissue paper having a basis weight of 30 gZm 2 using a barco (No. 28 specified in JISK 5400), and then applied at 80 ° C for 10 minutes and further at 150 ° C for 15 minutes. Heat treatment was performed to obtain a heat-treated coated thin paper having a film thickness of about 10 / m.
- cross-linking agents used were melamine resin (fully alkylated methyl melamine resin, trade name “Cymel 303” manufactured by Mitsui Cyanamid Co., Ltd.) and epoxy resin (water-soluble epoxy ester resin, trade name “Denacol EX—614B” Nagase) Chemical Industry Co., Ltd.).
- An emulsion composition was prepared by using the emulsions obtained in Examples 9 to 14 and blending a crosslinking agent in the proportions shown in Table 4.
- the composition was applied to a 70 ⁇ 150 ⁇ 0.3 mm zinc phosphate treated steel sheet coated with an epoxy primer 2 to 5 // with a bar coater to a film thickness of about 15; / After drying for 10 minutes, baking was performed at the curing temperature and curing time shown in Table 4 to obtain a coated steel sheet.
- the cross-linking agent used was a melamine resin (fully alkylated methylated melamine resin, trade name "Cymel 303" manufactured by Mitsui Scitec Co., Ltd.).
- the heat-treated coated thin paper obtained above was evaluated for film forming properties, water resistance, and solvent resistance (A).
- film forming properties, pencil hardness, bending resistance, stain resistance, and solvent resistance were evaluated.
- Each evaluation of (B) was performed and shown in Tables 3 and 4, respectively.
- the thin paper itself was evaluated on a three-point scale of the following four items.
- the coated steel sheet was evaluated on a three-point scale with respect to cracking and tackiness according to the following criteria.
- Pencil hardness was determined based on JISK540.
- the bending resistance was determined by bending the coated steel sheet by 180 degrees using a vise, and using a 10-fold loupe to determine the crack generated at the bent part.
- nT indicates that cracks do not occur when ⁇ sheets of the same thickness are sandwiched and bent at the bent part. The smaller the number, the better the workability.
- the painted surface of the coated steel sheet was colored with red and black magic ink, and after 24 hours, it was wiped with ethanol-soaked gauze to observe the degree of coloring.
- the results were determined as follows.
- Solvent resistance ( ⁇ ) was expressed as the number of times the board was rubbed with a gauze soaked in toluene under an additional load of 3 kg until the substrate was exposed.
- Example 26 is about 6
- the emulsion composition prepared by mixing the emulsion of the present invention with a crosslinking agent shows excellent performance in all of the film-forming properties, water resistance and solvent resistance.
- the emulsion composition of Comparative Example 5 using the emulsion of Comparative Example 1 containing 5% by weight of the emulsion of diaryl phthalate monomer which is smaller than that of the present invention, is inferior in tackiness and has poor water resistance and solvent resistance. It is clearly inferior to the present invention.
- the emulsion composition of Comparative Example 7 using the emulsion of Comparative Example 3 in which the amount of a,; 6-unsaturated carboxylic acid is higher than that of the present invention by 7.9% by weight is remarkably inferior in water resistance.
- the emulsion composition of Comparative Example 8 using the emulsion of Comparative Example 4 using methacrylic acid ester instead of the acrylic acid ester showed significant cracking and no film-forming property.
- a test was conducted according to the JAS standard on a laminate obtained by press-bonding the heat-treated coated thin paper of Example 15 and the particle board with a vinyl acetate-based adhesive.
- the flat tensile test was 13.7 kg, and the water resistance test B was No change, abrasion test B had a wear value of 93 times, abrasion amount of 0.03 g, scratch hardness test B of 15.5 zm, and contamination B test had no change.
- the emulsion composition prepared by mixing the emulsion of the present invention with a crosslinking agent has excellent film forming properties, pencil hardness, bending resistance, stain resistance, and solvent resistance (B). Performance.
- the aqueous emulsion containing the acryl-based crosslinked copolymer fine particles of the present invention is excellent in film-forming properties despite the polymerization rate of diaryl phthalate being 90% or more, and therefore is used in paints, coating agents, adhesives, printing inks, paper processing and the like. It can be used for fiber processing, etc., and is useful as a functional material.
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96923085A EP0839843B1 (en) | 1995-07-17 | 1996-07-15 | Aqueous emulsion containing fine particles of cross-linked allylic copolymer |
DE69616069T DE69616069T2 (de) | 1995-07-17 | 1996-07-15 | Wässrige emulsion enthaltend feine teilchen von vernetztem allyl-copolymer |
AT96923085T ATE207088T1 (de) | 1995-07-17 | 1996-07-15 | Wässrige emulsion enthaltend feine teilchen von vernetztem allyl-copolymer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18021695 | 1995-07-17 | ||
JP7/180216 | 1995-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997004016A1 true WO1997004016A1 (fr) | 1997-02-06 |
Family
ID=16079439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/001963 WO1997004016A1 (fr) | 1995-07-17 | 1996-07-15 | Emulsion aqueuse contenant de fines particules de copolymeres allyliques reticules |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0839843B1 (ja) |
KR (1) | KR19990029054A (ja) |
AT (1) | ATE207088T1 (ja) |
DE (1) | DE69616069T2 (ja) |
TW (1) | TW347396B (ja) |
WO (1) | WO1997004016A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0982365A1 (en) * | 1997-05-12 | 2000-03-01 | Daiso Co., Ltd. | Epoxy resin composition |
US7687588B2 (en) | 2005-05-13 | 2010-03-30 | Basel Poliolefine Italia S.R.L. | Process for the gas-phase polymerization of olefins |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0953601A4 (en) * | 1997-01-17 | 2001-05-30 | Daiso Co Ltd | AQUEOUS EMULSION CONTAINING FINE PARTICLES OF A CROSSLINKED ALLYL COPOLYMER |
EP1690878B1 (en) * | 2005-02-14 | 2007-09-12 | Rohm and Haas Company | Thickener for aqueous systems |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4918924A (ja) * | 1972-06-14 | 1974-02-19 | ||
JPS5021083A (ja) * | 1973-06-25 | 1975-03-06 | ||
JPS5189549A (ja) * | 1975-02-04 | 1976-08-05 | Mizubunsanjushisoseibutsu | |
JPS5616544A (en) * | 1979-07-11 | 1981-02-17 | Nl Industries Inc | Polymeric composition |
JPH0463816A (ja) * | 1990-07-03 | 1992-02-28 | Hoechst Gosei Kk | ビニルシランと2塩基酸ジアリルエステルを含有する水性共重合体エマルジョン及びその製造方法 |
JPH06220288A (ja) * | 1993-01-28 | 1994-08-09 | Dainippon Ink & Chem Inc | 合成樹脂組成物およびそれをコーティングしてなる繊維 |
-
1996
- 1996-07-15 WO PCT/JP1996/001963 patent/WO1997004016A1/ja not_active Application Discontinuation
- 1996-07-15 KR KR1019980700358A patent/KR19990029054A/ko not_active Application Discontinuation
- 1996-07-15 DE DE69616069T patent/DE69616069T2/de not_active Expired - Fee Related
- 1996-07-15 EP EP96923085A patent/EP0839843B1/en not_active Expired - Lifetime
- 1996-07-15 AT AT96923085T patent/ATE207088T1/de active
- 1996-07-20 TW TW085108873A patent/TW347396B/zh active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4918924A (ja) * | 1972-06-14 | 1974-02-19 | ||
JPS5021083A (ja) * | 1973-06-25 | 1975-03-06 | ||
JPS5189549A (ja) * | 1975-02-04 | 1976-08-05 | Mizubunsanjushisoseibutsu | |
JPS5616544A (en) * | 1979-07-11 | 1981-02-17 | Nl Industries Inc | Polymeric composition |
JPH0463816A (ja) * | 1990-07-03 | 1992-02-28 | Hoechst Gosei Kk | ビニルシランと2塩基酸ジアリルエステルを含有する水性共重合体エマルジョン及びその製造方法 |
JPH06220288A (ja) * | 1993-01-28 | 1994-08-09 | Dainippon Ink & Chem Inc | 合成樹脂組成物およびそれをコーティングしてなる繊維 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0982365A1 (en) * | 1997-05-12 | 2000-03-01 | Daiso Co., Ltd. | Epoxy resin composition |
EP0982365A4 (en) * | 1997-05-12 | 2000-04-26 | Daiso Co Ltd | EPOXIDE RESIN COMPOSITION |
US7687588B2 (en) | 2005-05-13 | 2010-03-30 | Basel Poliolefine Italia S.R.L. | Process for the gas-phase polymerization of olefins |
Also Published As
Publication number | Publication date |
---|---|
KR19990029054A (ko) | 1999-04-15 |
ATE207088T1 (de) | 2001-11-15 |
EP0839843A1 (en) | 1998-05-06 |
EP0839843A4 (en) | 1999-06-09 |
DE69616069T2 (de) | 2002-06-27 |
DE69616069D1 (de) | 2001-11-22 |
TW347396B (en) | 1998-12-11 |
EP0839843B1 (en) | 2001-10-17 |
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