Catalyst system

Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants

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Details

526137, 526138, 526146, C08F 464

Patent

active

041712846

ABSTRACT:
A propylene polymerization catalyst is formed by incorporation into a catalytic mixture, comprising a transition metal compound and an organoaluminum compound, effective amounts of hexavalent sulfur mineral acid or anhydride whereby the amount of n-hexane-soluble polymeric product is decreased.

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