Process for making alpha-olefin polymers or copolymers with high

Details Process for making alpha-olefin polymers or copolymers with high Process for making alpha-olefin polymers or copolymers with high

1980-03-26

1981-03-31

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526140, C08F 464

Patent

active

042592089

ABSTRACT:
A process for making crystalline polymers or copolymers of alpha-olefins containing 3 to 8 carbon atoms, such as polypropylene, by polymerization with a catalyst consisting of a combination of titanium chloride and an organic aluminium compound, in the presence of a stereospecificity additive.
This stereospecificity additive has the formula:

REFERENCES:
patent: 3862257 (1975-01-01), Buben et al.
patent: 3990994 (1976-11-01), Appleyard et al.
patent: 4028481 (1977-06-01), Shiomura et al.

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