Catalyst system

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

Patent

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Details

526137, C08F 464

Patent

active

043304311

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 hydrohalic mineral acids whereby the amount of n-hexane-soluble polymeric product is decreased.

REFERENCES:
patent: 3121064 (1964-02-01), Patat et al.

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