Thermoplastic elastomer composition and process for...

Details Thermoplastic elastomer composition and process for... Thermoplastic elastomer composition and process for...

C - Chemistry, Metallurgy

08

F

400/6434, 400/65

C08F 255/02 (2006.01) C08F 255/00 (2006.01) C08K 5/00 (2006.01) C08L 23/02 (2006.01)

Patent

CA 1296456

- 21 - ABSTRACT THERMOPLASTIC ELASTOMER COMPOSITION AND PROCESS FOR PRODUCING SAME A thermoplastic elastomer composition which is excellent in melt-flowability and is able to afford injection molded articles superior in appearance is provided, which is a mixture comprising (A) 20 - 50 parts by weight of an olefinic copolymer rubber, (B) 50 - 80 parts by weight of an olefinic plastic having a ratio of melt index M1/M0 of 2 - 50 wherein M0 is a melt index of the plastic before subjected to thermal decomposition with organic peroxide and M1 is a melt index of the plastic after subjected to the thermal decomposition with the organic peroxide, sum of (A) and (B) being 100 parts by weight, (C) 5 - 25 parts by weight of a mineral oil and (D) 0.1 - 3 parts by weight of a bismaleimide compound, said mixture being dynamically heat treated with (E) an organic peroxide after bismaleimide compound (D) is homogeneously dispersed in the mixture.

549974

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