AQUEOUS RESIN DISPERSION, COMPOUNDING AGENT FOR CEMENT MORTAR, CEMENT MORTAR COMPOSITION AND CEMENT MORTAR-CURED MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide an aqueous resin dispersion, etc., capable of realizing a cement mortar-cured material having good bending and compression strengths.;SOLUTION: This aqueous resin dispersion is provided by containing a polymer obtained by emulsion polymerization of an ethylenically unsaturated carboxylic acid monomer, an aromatic vinyl monomer and a (meth)acrylic acid ester monomer and having 20 to 60°C Tg1 of the same, a polymer obtained by emulsion polymerization of an ethylenically unsaturated carboxylic acid monomer with a (meth)acrylic acid ester monomer and having -10 to 30°C Tg2 of the same, and a polymer obtained by emulsion polymerization of an ethylenically unsaturated carboxylic acid monomer with a (meth)acrylic acid ester monomer and a vinyl-based monomer having a hydrolyzable silyl group, and having 10 to 50°C Tg3 of the same, blending each of the polymers in a fixed ratio and having a definite relationship among the Tg1 to Tg3.;COPYRIGHT: (C)2008,JPO&INPIT