Catalysts for ring-opening, metathesis polymerization of cyclic

Details Catalysts for ring-opening, metathesis polymerization of cyclic Catalysts for ring-opening, metathesis polymerization of cyclic

1992-12-31

1994-01-11

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526133, 526134, 526142, 526143, 526166, 526169, 526283, 526308, 502111, 502117, 502169, 502172, 2643282, 26433113, 26433117, 25218218, C08F 422, C08F 420, C08G 6108

Patent

active

052783057

ABSTRACT:
A catalyst and process for the polymerization of cyclic olefins, such as dicyclopentadiene, are disclosed. The catalyst comprises the reaction product of a transition metal halide and a 1,4-hydroquinone of the general formula: ##STR1## wherein R is independently selected from the group of hydrogen, C.sub.1-12 alkyl, C.sub.6-20 aryl, halide, and C.sub.1-6 haloalkyl. Optional co-catalysts include borohydrides, organo tin hydrides and organo aluminum compounds. Polymerization can be carried out in a reaction injection molding process to prepare a molded article.

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