Unsaturated copolymer of ethylene and process for preparing...

Details Unsaturated copolymer of ethylene and process for preparing... Unsaturated copolymer of ethylene and process for preparing...

C - Chemistry, Metallurgy

08

F

C08F 238/00 (2006.01) C07C 2/04 (2006.01) C07C 11/21 (2006.01) C08F 210/18 (2006.01) C08F 255/02 (2006.01) C08L 49/00 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01)

Patent

CA 2153384

A novel unsaturated copolymer of ethylene comprises a random copolymer of (i) ethylene, (ii) an .alpha.-olefin of 3 to 20 carbon atoms and (iii) at least one straight chain or branched chain nonconjugated triene or tetraene having one vinyl group in the molecule, which contains 30 - 92 % by mol of ethylene units (i), 6 - 70 % by mol of .alpha.-olefin units (ii) and 0.1 - 30 % by mol of triene or tetraene units (iii), and which has a molar ratio of ethylene units (i) to .alpha.-olefin units (ii) of 40/60 to 92/8 (ethylene units (i)/.alpha.-olefin units (ii)) and an intrinsic viscosity (?), measured in Decalin at 135 °C, of 0.05 to 10 dl/g. This novel unsaturated copolymer of ethylene is excellent in weathering resistance, heat resistance and ozone resistance and has a high vulcanizing rate.

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