Retreating comminuted olefin polymerization catalyst with a tita

Details Retreating comminuted olefin polymerization catalyst with a tita Retreating comminuted olefin polymerization catalyst with a tita

1982-05-14

1984-02-14

Garvin, Patrick

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

526125, 526124, 502154, C08F 464

Patent

active

044315708

ABSTRACT:
A comminuted, supported polymerization catalyst for alpha-olefins comprises (A) an organoaluminum compound and (B) a solid titanium-containing component formed by (1) comminuting a solid reaction product comprising (a) at least one halogen-containing compound of titanium(IV); (b) at least one electron donor; and (c) at least one hydrocarbon-insoluble magnesium-containing compound; and (2) retreating such comminuted product with (a) at least one halogen-containing compound of titanium(IV); and (b) at least one organic acid ester.

REFERENCES:
patent: 4168361 (1979-09-01), Oda et al.
patent: 4312782 (1982-01-01), Mink et al.
patent: 4325836 (1982-04-01), Epstein et al.
patent: 4353813 (1982-10-01), Karayannis et al.
patent: 4367321 (1983-01-01), Bachl et al.

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