Cycloolefin random copolymer and process for preparing same

Details Cycloolefin random copolymer and process for preparing same Cycloolefin random copolymer and process for preparing same

C - Chemistry, Metallurgy

08

F

402/531, 402/570

C08F 210/02 (2006.01) C08F 214/00 (2006.01) C08F 232/00 (2006.01) C08F 232/08 (2006.01) G11B 7/24 (2006.01) G11B 7/253 (2006.01)

Patent

CA 2037582

In accordance with the present invention, there are provided cycloolefin random copolymers composed of ethylene and cycloolefin and containing substantially no polyethylene, and processes for preparing the same. Optical disc substrates prepared from the above-mentioned copolymers are excellent in transparency and also capable of minimizing the occurence of errors in reading of the discs due to quality of the substrates used therefor.

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