Carboxyl-group-containing polymer composition

Abstract

There is provided a carboxyl group-containing polymer composition having excellent water solubility and aqueous solution-thickening properties, having a minimal change in viscosity due to the thermal history in a drying step, and having high transparency of a neutral viscous solution obtained by mixing with water. The carboxyl group-containing polymer composition comprises (A) a carboxyl group-containing polymer obtained by copolymerization of an α,β-unsaturated carboxylic acid (a1) and a compound (a2) having at least two or more ethylenically unsaturated groups per molecule; (B) a polyhydric alcohol fatty acid ester alkylene oxide adduct; and (C) a polyoxyalkylene modified product, which is at least one of an ether (c1) of a polyoxyalkylene with a fatty alcohol, and a polyoxyalkylene fatty acid ester (c2).

Dependencies are inferred from the claim text.