Cycloolefin type random copolymer compositions and uses thereof

Details Cycloolefin type random copolymer compositions and uses thereof Cycloolefin type random copolymer compositions and uses thereof

1988-04-29

1989-10-17

Seccuro, Carman J.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524518, 524553, 525210, 526281, C08K 513, C08K 510, C08L 2308, C08L 4500

Patent

active

048748080

ABSTRACT:
Compositions comprising (A) cycloolefin random copolymer containing an ethylene component, and a cycloolefin component represented by the general formula [I] or [II] and having an intrinsic viscosity of 0.05-10 dl/g as measured at 135.degree. C. in decalin and a softening temperature (TMA) not lower than 70.degree. C., and (B) a cycloolefin random copolymer containing an ethylene component, and a cycloolefin component represented by the general formula [I] or [II] and having an intrinsic viscosity of 0.01-5 dl/g as measured at 135.degree. C. in decalin and a softening temperature (TMA) of below 70.degree. C., the weight ratio of said (A) component/(B) component ranging from 100/0.1 to 100/10.
The composition is particularly useful for molding an information recording base board.

REFERENCES:
patent: 4614778 (1986-09-01), Kajiura et al.
patent: 4720715 (1988-01-01), Omae et al.

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