Aqueous coating composition
AssigneeKansai Paint Co., Ltd.
InventorsTetsuo Aihara, Yasuharu Nakayama, Yoshio Yamashita
Life of this patent
Estimating the term…
Abstract
An aqueous coating composition comprising as film-forming components [I] a water-soluble or water-dispersible product of a resin (i) obtained by copolymerizing (A) a fatty acid-modified acrylic monomer composed of the reaction product between an unsaturated fatty acid having at least two non-conjugated double bonds and a hydroxyl-containing ester of acrylic or methacrylic acid, (B) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, and (C) an unsaturated monomer having a Q value in the Q-e theory of at least 0.1, and [II] a vinyl polymer emulsion obtained by polymerizing an unsaturated vinyl monomer in the presence of a water-soluble oxidation-curable resin (ii) as a dispersion stabilizer.
Claims27
An aqueous coating composition comprising as film-forming components:
- I. a water-soluble or water-dispersible product of a resin (i) obtained by copolymerizing:
- (A) a fatty acid-modified acrylic monomer composed of the reaction product between an unsaturated fatty acid having at least two non-conjugated double bonds and a hydroxyl-containing ester of acrylic or methacrylic acid selected from the group consisting of compounds of the following formulae:
- ##STR5## wherein R.sub.1 represents a hydrogen atom or a methyl group, n is an integer of 2 to 8, and p and q each represent zero or an integer of 1 to 8 provided that the sum of p and q is 1 to 8,
- (B) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, and
- (C) an unsaturated monomer having a Q value in the Q-e theory of at least 0.1, and
- II. a vinyl polymer emulsion obtained by polymerizing an unsaturated vinyl monomer selected from the group consisting of vinyl aromatic compounds, acrylic esters, methacrylic esters, diolefin compounds, vinyl acetate and Veova monomer, in the presence of a water-soluble oxidation-curable resin (ii) as a dispersion stabilizer, which is selected from the group consisting of maleinized polydienes, maleinized fatty acid-modified alkyd resins, maleinized fatty acid-modified epoxy resins, fatty acid-modified acrylic resins, maleinized fatty acid-modified acrylic resins, maleinized oils, maleinized stand oils, maleinized boil oils, maleinized fatty acid-modified vinyl resins, water-soluble alkyd resins and fatty acid-modified water-soluble epoxy resins.
Dependencies are inferred from the claim text.