Olefin polymerization catalyst

Details Olefin polymerization catalyst Olefin polymerization catalyst

1977-06-09

1978-09-19

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252430, 252431P, 526129, 526134, 526154, 526161, 526192, C08F 478

Patent

active

041153189

ABSTRACT:
An olefin polymerization catalyst is prepared by depositing a poly (di-.mu.-dihydrocarbylphosphinatohydroxyaquochromium (III)) compound or the corresponding anhydrous compound upon an inorganic support material and calcining the impregnated support material in a non-reducing atmosphere above 300.degree. C. up to the decomposition temperature of the support material to provide an activated catalyst. The catalyst exhibits high productivity and produces polymers having high melt indices.

REFERENCES:
patent: 3704287 (1972-11-01), Johnson
patent: 3907849 (1975-09-01), Meyer
patent: 3984351 (1976-10-01), Rekers et al.
patent: 3985676 (1976-10-01), Rekers et al.

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