| abstract |
Provided is an aqueous dispersion composition that comprises a carboxyl-group-containing water-soluble copolymer in a relatively high concentration, but has intact handleability. More specifically, provided is, for example, an aqueous dispersion composition comprising 4 to 8 mass% of a copolymer obtained by polymerization in the presence of a nonionic surfactant with one or more polyoxyethylene chains, the copolymer being at least one member selected from the group consisting of(1) copolymers obtained by polymerizing the following (i) and (ii),(2) copolymers obtained by polymerizing the following (i) and (iii), and(3) copolymers obtained by polymerizing the following (i), (ii), and (iii):(i) 100 parts by mass of a (meth)acrylic acid;(ii) 0.001 to 1 part by mass of a compound with two or more ethylenically unsaturated groups; and(iii) 0.5 to 5 parts by mass of a (meth)acrylic acid alkyl ester having an alkyl group with 10 to 30 carbon atoms. |