Propylene block copolymer and process for producing the same

Details Propylene block copolymer and process for producing the same Propylene block copolymer and process for producing the same

C - Chemistry, Metallurgy

08

F

C08F 297/00 (2006.01) C08F 297/08 (2006.01) C08L 23/10 (2006.01) C08L 53/00 (2006.01) C08L 23/04 (2006.01) C08L 23/08 (2006.01) C08L 23/14 (2006.01) C08L 23/16 (2006.01) C08L 51/06 (2006.01)

Patent

CA 2162946

A propylene block copolymer comprising a matrix phase and a dispersed phase dispersed in said matrix phase, said matrix phase comprising (a) polypropylene; said dispersed phase having an average particle diameter of from 0.1 to 5 µm; and said dispersed phase comprising an outer layer comprising (b) propylene-.alpha.-olefin copolymer rubber and an inner layer comprising (c) crystalline polyethylene dispersed therein a plurality of particles comprising an outer layer comprising (b') propylene-.alpha.-olefin copolymer rubber and an inner layer comprising (a') polypropylene, a propylene block copolymer comprising a matrix phase and a dispersed phase dispersed in said matrix phase, said matrix phase comprising (a) polypropylene; said dispersed phase having an average particle diameter of from 0.1 to 5 µm; and said dispersed phase comprising (b) propylene-.alpha.-olefin copolymer rubber having therein at least one particle comprising (a') polypropylene and at least one particle comprising (c) crystalline polyethylene. Propylene block copolymer resin compositions comprising the propylene block copolymers, and processes for producing a propylene block copolymers. - 53 -

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