| 摘要 |
PROBLEM TO BE SOLVED: To provide a copolymer latex with excellent adhesive strength and blister resistance.SOLUTION: A copolymer latex is obtained by emulsion polymerization of a monomer (monomer total 100 pts.wt.) including 10-45 pts.wt. of an aliphatic conjugated diene monomer, 5-40 pts.wt. of an acrylic alkylester monomer having a -30°C or lower glass transition temperature of the single monomer, 1-15 pts.wt. of an ethylene unsaturated carboxylic acid monomer and 20-60 pts.wt. of another monomer copolymerizable with these elements. In the copolymer latex, the average particle size by photon correlation is 70-200 nm, and the gel content is 90% or higher. |
