| 摘要 |
PROBLEM TO BE SOLVED: To provide an aqueous composition forming a film having excellent transparency and water resistance. SOLUTION: The aqueous composition contains an acid group-containing vinylic copolymer obtained by subjecting a monomer mixture to a suspension polymerization in the presence of a polymer (A) containing a monomer having a specific structure as a constituent component. In another aspect, the acid group-containing vinylic copolymer is dissolved in an aqueous solvent in the aqueous composition. The aqueous composition is preferably obtained by adding a basic compound when the polymerization conversion is≥90% in the suspension polymerization of the acid group-containing vinylic copolymer. More preferably, the aqueous composition is obtained by carrying out the polymerization by adding a water-soluble polymerization initiator after the addition of the basic compound. COPYRIGHT: (C)2004,JPO
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