| 摘要 |
PROBLEM TO BE SOLVED: To obtain a resin emulsion being excellent in stabilization during polymerization and having a low minimum film-forming temperature and therefore being capable of forming a film without being plasticized by dispersing microparticles of a copolymer comprising vinyl acetate (A) and a diacetoneacrylamide (B) in a specified ratio in water containing a polyvinyl alcohol(PVA) type polymer. SOLUTION: The comonomer ratio of component A to component B is 100:1 to 100:40 by weight. The PVA resin used as a dispersant is exemplified by an unmodified PVA or a modified PVA and is obtained by saponifying a polymer of a fatty acid vinyl ester or a copolymer of a fatty acid vinyl ester with a copolymerizable vinyl monomer. The fatty acid vinyl ester used is, for example, vinyl acetate. The vinyl monomer used is, for example, crotonic acid. It is desirable that the PVA resin has a viscosity of 3 Pa.s or above (in a 4% aqueous solution at 20 deg.C) and a degree of saponification of 85 mol% or above. |
