Catalyst for the polymerization of ethylene or mixtures of ethyl

Details Catalyst for the polymerization of ethylene or mixtures of ethyl Catalyst for the polymerization of ethylene or mixtures of ethyl

1977-04-25

1978-08-01

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252429C, 526121, C08F 464, C08F 416

Patent

active

041041992

ABSTRACT:
A novel supported catalyst for polymerization of ethylene or its mixtures with C.sub.3 to C.sub.8 terminal olefins composed of (a) the solid reaction product of a titanium (IV) or vanadium (V) alkoxide, a hydrated magnesium stannate and an alkylaluminum dichloride, and (b) an organo-aluminum compound promoter. The catalyst produces polyolefin in good yield without any substantial production of polymer fines and the catalyst is quite sensitive to hydrogen induced chain termination processes leading to improved molecular weight control and rheology of the polymer product.

REFERENCES:
patent: 3303181 (1967-02-01), Bloyaert
patent: 3449263 (1969-06-01), Watt
patent: 3809657 (1974-05-01), Moeller-Tamm et al.

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