C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
117/46, 400/4801
C08L 71/12 (2006.01) C08F 283/00 (2006.01) C08F 285/00 (2006.01) C08F 291/02 (2006.01) C08L 25/04 (2006.01) C08L 51/00 (2006.01)
Patent
CA 2013442
ABSTRACT OF THE DISCLOSURE There is disclosed a core-shell polymer which comprises: (a) a core comprising an elastomeric polymer having a glass transition temperature of not more than -30°C in an amount of 50-90 % by weight; (b) an intermediate layer comprising a polymer having a glass transition temperature of not less than 60°C in an amount of 5-30 % by weight; and (c) a shell comprising an aromatic vinyl polymer in an amount of 5-30 % by weight, each based on the core-shell polymer, and the total of the core, the intermediate layer and the shell amounting to 100 % by weight. Preferably, the core is composed of polybutadiene or polyalkyl acrylate wherein the alkyl has 2-8 carbon atoms. the intermediate layer of polymethyl methacrylate and the shell of polystyrene. A high impact polyphenylene ether resin composition is further disclosed which contains such a core-shell polymer as an impact modifier.
Ishii Kazuhiko
Oshima Junji
Shimaoka Goro
Teraoka Takao
Togo Shizuo
Fetherstonhaugh & Co.
Takeda Chemical Industries Ltd.
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