Cycloolefin copolymers and uses thereof

Details Cycloolefin copolymers and uses thereof Cycloolefin copolymers and uses thereof

1998-04-14

2000-05-16

Zitomer, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526281, 526308, 526347, 5263471, 526348, 526943, C08F23208, C08F23204

Patent

active

060638869

ABSTRACT:
Disclosed is a cycloolefin copolymer which is obtained from (A) a straight-chain or branched .alpha.-olefin of 2 to 20 carbon atoms, (B) a specific cycloolefin and (C) an aromatic vinyl compound and has an intrinsic viscosity [.eta.] of 0.1 to 10 dl/g, wherein the content of constituent units derived from the cycloolefin (B) and the content of constituent units derived from the aromatic vinyl compound (C) satisfy a specific relation. The cycloolefin copolymer has high heat resistance, low moisture absorption and small birefringence.

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