Catalyst for the preparation of polyalkenamers

Details Catalyst for the preparation of polyalkenamers Catalyst for the preparation of polyalkenamers

1974-01-07

1976-08-10

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252428, 252430, 260 47VA, 260611A, 526140, 526142, 526159, 526169, 526308, C08F 422

Patent

active

039740927

ABSTRACT:
For the production of polyalkenamers there are provided catalysts consisting essentially of a catalyst system for the ring-opening polymerization of cyclic olefins consisting essentially of (1) a tungsten or molybdenum compound; (2) an organoaluminum compound; and (3) an ether of vinyl alcohol, of allyl alcohol, or of 2-butene-1,4-diol, the molar ratio of component (1) to component (2) being less than 1 : 1 and the molar ratio of component (1) to component (3) being less than 100 : 1. The catalyst system may also contain a compound containing one or more hydroxyl or sulfhydryl groups in a molar ratio to component (1) of about 0 : 1 to 2 : 1, respectively.

REFERENCES:
patent: 3320227 (1967-05-01), Bloyaert et al.
patent: 3459725 (1969-08-01), Natta et al.
patent: 3492245 (1970-01-01), Calderon et al.
patent: 3583958 (1971-06-01), Sasaki et al.
patent: 3632849 (1972-01-01), Pampus et al.
patent: 3798175 (1974-03-01), Streck et al.

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