摘要:
An aqueous dispersion composition comprises (A) fluoro resin particles, (B) a multi-valent alcohol of high boiling point having two or more OH groups, no N atoms and a boiling point of 100[deg]C or higher, (C) decomposing acrylic resin particles having a decomposing and evaporating temperature in the range of the decomposing temperature of (A), (D) non-ionic surfactant, and (E) aqueous solvent, wherein the amounts of (B) and (C) to 100 parts by weight of (A) is 5-18 and 5-25 parts by weight respectively. Independent claims are also included for (1) a similar composition comprising the above composition and an inorganic material selected from pigments, quartz particles optionally coated with pigments, and metal flakes, wherein the weight ratio of the fluoro resin particles to the inorganic material is 20/80-0.2/99.8, and (2) a coated product obtained by coating the composition on an object such that the thickness of the film is 20 mu m.
摘要:
A coating composition which is free from hexavalent chromium serving as binder and exhibits close adhesion equivalent to that of chromium phosphate primer even when baked at high temperature for a long time; and an amido resin composition improved in heat resistance. Specifically, a coating composition comprising (A) an amido-containing high molecular compound which either bears amido groups or is to bear amido groups and (B) an antioxidant which can inhibit the oxidation of the amido groups, characterized in that the amido-containing high molecular compound (A) is an amido polymer (a1) which bears amido groups and aromatic rings and/or an amido polymer precursor (a2) which can be converted into the amido polymer (a1) through baking in the application of the coating composition and that the amount of the antioxidant (B) is 0.1 to 20 % by mass based on the total amount of the components (A) and (B).
摘要:
The present invention provides a laminate excellent in abrasion resistance, high in hardness, and excellent in adhesion between a substrate and a primer layer and adhesion between an intermediate layer and a top coat layer. The laminate includes: a substrate; a primer layer disposed on the substrate, the primer layer containing inorganic particles (a) having an average particle size of 3 µm or greater and a heat-resistant resin (a), but not containing a fluororesin; an intermediate layer disposed on the primer layer and containing a fluororesin (b) and a heat-resistant resin (b); and a top coat layer disposed on the intermediate layer and containing a fluororesin (c).
摘要:
A fluorinated resin water dispersion composition comprising a tetrafluoroethylene polymer having an aliphatic polyoxyalkylene ether dispersant added thereto characterized in that the aliphatic polyoxyalkylene ether dispersant is one whose 50% decomposition temperature is 250 C or higher.
摘要:
An aqueous resin dispersion composition containing one or more kinds of resin particles and water, characterized by containing a nonionic surfactant in an amount accounting for 75 to 95% of the theoretical porosity of 26% for the resin particles arranged in the closest packing structure on the assumption that the resin particles are spheres each having the same volume as the primary average particle for the resin particles, and that the nonionic surfactant is nonvolatile in the temperature range up to 100°C and is a solvent which volatilizes or thermally decomposes at a temperature lower than the heat decomposition temperature of the resin particles. The composition can be applied thick and inhibited from suffering mud cracking.
摘要:
The present invention provides a fluoropolymer coating composition which is capable of coating thick and forming a coating film being excellent in abrasion resistance, corrosion resistance and non-sticking property, and provides a coated article obtained by coating the above-mentioned composition as a top coat. The fluoropolymer coating composition comprises fine particles of a fluoropolymer, 0.1 to 300 % by weight of a polyether type resin on the basis of a weight of the above-mentioned fine particles and a liquid carrier, and the polyether type resin is a resin represented by the formula (I): R -Y -(A-B)-R wherein R is hydrogen or an alkyl, Y is ether, ester, urethane or thionyl, A is alkylene oxide residual group having at least 3 carbon atoms (A molecular weight of an alkylene oxide moiety obtained by polymerization is 1 x 10 to 1 x 10 ), B is urethane, thionyl or phosphoric acid residual group (in the parenthesis is represented a residual group obtained through alternating copolymerization), and a temperature where the above-mentioned resin is decomposed and vaporized is in the range up to a decomposition temperature of the fluoropolymer.
摘要:
An aqueous fluoropolymer dispersion containing a fluoropolymer, a nonionic surfactant and a preservative wherein the carbon atom bearing an electron-attracting group has at least one halogen atom or another preservative having a methylol or methylene group and releasing formaldehyde. The dispersion generates neither putrefacient odor nor suspensions, does not cause pH drop, has a long-term stability, and causes neither cissing nor granulation.
摘要:
The present invention provides a fluoropolymer coating composition which comprises fine particles of a fluoropolymer, 0.1 to 300 % by weight of a polyether type high molecular surfactant on the basis of a weight of the above-mentioned fine particles and a liquid carrier and is capable of coating thick and forming a coating film being excellent in abrasion resistance, corrosion resistance and non-sticking property, and provides a coated article obtained by coating the above-mentioned composition as a top coat.