Catalyst system for the production of polyalkenamers

Details Catalyst system for the production of polyalkenamers Catalyst system for the production of polyalkenamers

1974-11-13

1976-08-10

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526159, 526169, 526296, 526308, C08F 422, B01J 3114

Patent

active

039740943

ABSTRACT:
Polyalkenamers are produced by a ring-opening polymerization of cyclic olefins employing a catalyst system comprising (1) a tungsten or molybdenum compound; (2) an organoaluminum compound; (3) a vinylic chloride, bromide or iodide; and, optionally, (4) a compound containing a hydroxyl or sulfhydryl group; and conducting the polymerization in the presence of an ethylenically unsaturated halogenated hydrocarbon wherein one of the double bonded carbon atoms is substituted by chlorine, bromine or iodine or halogenated alkyl or aryl and at least one hydrogen atom.

REFERENCES:
patent: 3449310 (1969-06-01), Dall 'Asta et al.
patent: 3607853 (1971-09-01), Oberkirch et al.
patent: 3631010 (1971-12-01), Witte et al.
patent: 3719652 (1973-03-01), Oberkirch et al.
patent: 3781257 (1973-12-01), Pampus et al.
patent: 3798175 (1974-03-01), Streck et al.

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