Water-based coating composition
AssigneeDai Nippon Toryo Co., Ltd.
InventorsAkira Iwasawa, Takeshi Fujimoto, Yasuhiro Kawai, Seiji Hamanaka
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Abstract
According to a water-based composition characterized by containing a colorant, water, a wetting agent, an amine compound, a hydroxyl group-containing organic solvent and a urethane resin having a polycarbonate group, there is provided a water-based coating composition being capable of easily controlling the gloss of a coating film applied on an object to be coated, having good storage stability, and being excellent in wetting properties to an object to be coated and continuous discharge stability without causing nozzle clogging.
Claims15
A water-based coating composition characterized by containing a colorant, water, a wetting agent, an amine compound, a hydroxyl group-containing organic solvent and a urethane resin having a polycarbonate group, wherein
- the hydroxyl group-containing organic solvent consists of (A) a solvent having one hydroxyl group in one molecule and (B) a solvent having two or more hydroxyl groups in one molecule, in which a ratio by mass of (A) the solvent having one hydroxyl group in one molecule to (B) the solvent having two or more hydroxyl groups in one molecule is A:B=100:50 to 100:170,
- (A) the solvent having one hydroxyl group in one molecule is at least one selected from the group consisting of ethylene glycol monobutyl ether, ethylene glycol isobutyl ether, ethylene glycol tertiary butyl ether, diethylene glycol monobutyl ether, diethylene glycol isobutyl ether, and triethylene glycol monobutyl ether,
- (B) the solvent having two or more hydroxyl groups in one molecule is at least one selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propanediol, 2-methyl-1,3-propanediol, 1,2-butanediol, 1,4-butanediol, 3-methyl-1,3-butanediol, glycerin, dipropylene glycol and tripropylene glycol, and
- the amine compound is at least one selected from the group consisting of ethanolamine, diethanolamine, triethanolamine, N,N-dimethylethanolamine, N,N-diethylethanolamine, N,N-dibutylethanolamine, N-methyldiethanolamine, N-ethyldiethanolamine, and N-butyldiethanolamine.
Dependencies are inferred from the claim text.