| 摘要 |
PROBLEM TO BE SOLVED: To provide modified polyvinyl acetate having excellent compatibility with thermoplastic resin and plasticizer.SOLUTION: In the presence of modified polyvinyl alcohol having a bond unit represented by formula I, vinyl acetate and alkyl vinyl ether are copolymerized by a suspension polymerization method to obtain modified polyvinyl acetate (X1 and X2 are a C1-12 lower alkyl group, H or metal salt; g is an integer of 0-3; h is an integer of 0-12; Y1 is carboxylic acid, carboxylic acid ester, carboxylic acid metal salt or H). |
