Patent ID: 7727636
Filing Date: 2010-06-01
Classification: C25D,Y10T

Abstract:
1. A coating material composition for chromium plating, comprising a vinyl-based polymer (A) obtained by polymerizing a vinyl-based monomer mixture containing a vinyl-based monomer having an amino group, a compound (B) having an epoxy group and a hydrolyzable silyl group in a molecule, and a compound (C) having a hydrolyzable silyl group other than the compound (B), wherein the vinyl-based polymer (A) has a glass transition temperature of lower than 30° C., the content of the vinyl-based monomer having an amino group is 5% by weight or more and less than 20% by weight in the vinyl-based monomer mixture (100% by weight), and the compound (C) having a hydrolyzable silyl group that is a mixture of a partial hydrolyzate condensate (C1) of tetramethoxysilane and a partial hydrolyzate condensate (C2)of tetraethoxysilane.