Ethylene/pentene-1 copolymer, process for the preparation of...

C - Chemistry – Metallurgy – 08 – F

Patent

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402/624, 402/645

C08F 210/02 (2006.01) C08F 210/14 (2006.01) C08F 210/16 (2006.01) C08J 5/18 (2006.01) C08L 23/04 (2006.01) C08L 23/08 (2006.01) C08L 23/20 (2006.01)

Patent

CA 2037025

The present invention relates to a novel ethylene/pentene-1 copolymer whose molded film has a good balance between impact resistance and tear properties and high transparency, also is prominently reduced in a variation of the transparency even after subjected to a heat treatment, and further shows high blocking resistance, provided that the copolymer fulfills specific requisites. The invention also relates to a process for the preparation of the above- mentioned ethylene/pentene-1 copolymer and a formulation of the ethylene/pentene-1 copolymer composition using a stabilizer. According to the invention, there can be obtained an ethylene/pentene-1 copolymer composition which is excellent in heat stability in the molding stage, long-term heat stability and weatherability.

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