| abstract |
PROBLEM TO BE SOLVED: To provide an aqueous copolymer coating composition for industrial use and architectural use. Copolymer dispersions containing polyamide segments in aqueous media form coating binders for a variety of industrial and building materials. This copolymer has a high proportion of amide linkages. Copolymers are larger molecular weight species by reaction with polyisocyanates, which form urea linkages if the other reactants are amines, or urethane linkages if the other reactants are hydroxyl groups. It is connected inside. The present invention relates to a polyurea or polyurethane type aqueous polymer dispersion containing a polyamide segment linked via a reaction of a hydroxyl or amine group of a polyamide with a polyisocyanate to form a polyurethane or polyurea. [Selection diagram] None |