| abstract |
(57) Abstract: [PROBLEMS] To provide a resin composition for paints that forms a coating film having excellent water resistance and stain resistance, and a method for producing an emulsion for paints that has excellent production stability. SOLUTION: A polymer block (A) having dimethylsiloxane as a repeating unit, a polymer block (B) having a hydrolyzable silyl group and a carbonyl group as a repeating unit and having a vinyl polymerizable monomer, and a silicon-containing graft. An emulsion of a graft block copolymer (I) composed of crossing units (C), and an organic hydrazine compound (I A resin composition for coatings, which comprises I). Emulsion polymerization of a cyclic dimethyl siloxane oligomer and a graft crossing agent, and graft copolymerization of a vinyl monomer containing a hydrolyzable silyl group and a vinyl monomer containing a carbonyl group. Method for producing emulsion. |