Modified polycycloolefins

Details Modified polycycloolefins Modified polycycloolefins

1992-06-26

1995-08-01

Smith, Edward 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...

524720, 524758, 524773, 524776, 525210, 525211, 525289, 526122, 526127, 526128, 526132, 526133, 526281, 526283, 526150, 526282, C08F 4629, C08F 4628, C08F 3206

Patent

active

054380936

ABSTRACT:
Solution and RIM polymerization of cycloolefins containing at least one norbornene moiety is carried out in the presence of a methathesis catalyst system and an activator, particularly a chlorosilane activator, to obtain faster reaction with higher conversions at lower mold temperatures. The methathesis catalyst system includes an organoammonium molybdate or tungstate catalyst and an alkylaluminum or an alkylaluminum halide cocatalyst. The chlorosilane activator is used at a level of 0.05 to 10 millimoles per mole of the cycloolefin monomers. The polymers of cycloolefins can be impact modified and/or flame-retarded.

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patent: 4080491 (1978-03-01), Kobayashi et al.
patent: 4400340 (1983-08-01), Klosiewicz
patent: 4426502 (1984-01-01), Minchak
patent: 4481344 (1984-11-01), Newburg
patent: 4485208 (1984-11-01), Klosiewicz
patent: 4607077 (1986-08-01), Silver et al.
patent: 4696985 (1987-09-01), Martin

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