Cycloolefin random copolymer and process for preparing same

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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Details

526 88, 5261692, 526282, 526280, 528482, 528502, C08F23204, C08F 206

Patent

active

052722350

ABSTRACT:
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.

REFERENCES:
patent: 5115052 (1992-05-01), Wamura et al.

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