Inventors:
Hirofumi Uno - New York NY
Jun Nakauchi - Tokyo, JP
Assignee:
Mitsubishi Rayon Co., Ltd. - Tokyo
International Classification:
C08L 5106
C08L 3306
C08L 3312
Abstract:
A multilayered acrylic polymer comprising an innermost layer polymer (A) formed from a C. sub. 1-4 alkyl methacrylate, a C. sub. 1-8 alkyl acrylate, etc. , an intermediate layer polymer (B) formed from a C. sub. 1-8 alkyl acrylate, an aromatic vinyl monomer, etc. , and an outermost layer polymer (C) formed from a C. sub. 1-4 alkyl methacrylate, a C. sub. 1-8 alkyl acrylate, etc. , and wherein the average value of the coating ratio, i. e. [(minimum thickness of the intermediate layer). div. (maximum thickness of the intermediate layer)]. times. 100, is not less than 30%; and a methacrylic resin composition containing the same. This multilayered acrylic polymer can improve the falling-ball or falling-weight impact strength, resistance to impact whitening, transparency and other properties of the methacrylic resin composition.