WATER-BASED COATING RESIN COMPOSITION AND PROCESS FOR FORMING COATING FILM EXCELLENT IN STAIN RESISTANCE

摘要

A water-based coating resin composition comprising 100 pts. by wt. of an emulsion of a copolymer comprising a vinylic monomer having a silyl group and other vinylic monomer, 1 to 70 pts. by wt. of a silicon compound and/or a condensate of partial hydrolyzate thereof and/or a silicon compound having at least one group selected from among amino and groups derived from amino and at least one hydrolyzable silyl group, and 0 to 20 pts. by wt. of a curing catalyst. When this composition is applied to a substrate, a coating film excellent not only in weathering resistance and durability but also in stain resistance is formed on the surface of the substrate.