Process for production of molded article of norbornene polymer

Details Process for production of molded article of norbornene polymer Process for production of molded article of norbornene polymer

1988-09-12

1990-12-11

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526125, 526127, 526161, 526169, 526281, 526283, 525 98, 525247, 525289, 525290, 2643286, C08F 202, C08F 3204, C08F 3208

Patent

active

049772260

ABSTRACT:
Process for production of a molded article comprising polymerizing a norbornene monomer having bicyclic or higher cyclic structure in the presence of a metathesis catalyst system and a viscosity modifier having room temperature viscosity of 300 to 50,000 cps which viscosity modifier comprises a ring-opened polymer and unreacted norbornene monomer having bicyclic or higher cyclic structure.

REFERENCES:
patent: 4400340 (1983-08-01), Klosiewicz
patent: 4426502 (1984-01-01), Minchak

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