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

1991-03-06

1993-12-21

Teskin, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

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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