| 摘要 |
PROBLEM TO BE SOLVED: To obtain a compsn. widely useful for elastomers, thermoplastic elastomers, and semirigid applications by blending two types of (meth)acrylic copolymers having low and high glass transition points in a specified wt. ratio. SOLUTION: This compsn. is a compatible blend of 5-95wt.% copolymer comprising 5-95wt.% alkyl (meth)acrylate units and 95-5wt.% polyalkyleneoxy (meth)acrylate units represented by the formula (wherein R1 and R2 are each H or CH3 ; R2 is H, 1-20C alkyl, 6-20C aryl, or 7-10C alkaryl; and n is 1-1,000) and having a glass transition point of 20 deg.C or lower and 95-5wt.% copolymer comprising 50-95wt.% 1-20C alkyl, cycloalkyl, 6-20C aryl, or 7-10C alkaryl (meth) acrylate units and 50-5wt.% 1-20C alkyl acrylate units and having a glass transition point higher than 20 deg.C. |
