| abstract |
(57) [Summary] [Object] To provide an aqueous dispersion of a hydrolyzable silyl group-containing copolymer, which is excellent in polymerization stability, mechanical stability, storage stability and coating film physical properties. [Structure] γ-methacryloxypropyltrimethoxysilane, methyl methacrylate, butyl methacrylate, butyl acrylate and acrylic acid were mixed with 1,1-dimethyl-1- (2-hydroxypropyl) amine methacrylic acid to prepare a monomer mixture. An aqueous dispersion of a hydrolyzable silyl group-containing copolymer obtained by emulsion polymerization in the presence of a water-soluble copolymer of amide, acrylic acid and 2-hydroxyethyl acrylate. |