| abstract |
The present invention relates to a carboxyl group-containing polymer composition having excellent water solubility, thickening property and flow characteristics, wherein the polymer composition is a compound (b) having at least two α, β-unsaturated carboxylic acids (a) and ethylenically unsaturated groups. It consists of at least 1 sort (B) of the crosslinked polymer (A) which consists of a crosslinked polymer and vinylpyrrolidone which are an essential component, and a polyethylene oxide. |