Olefin polymerization catalyst and process

Details Olefin polymerization catalyst and process Olefin polymerization catalyst and process

1984-08-06

1985-11-12

Garvin, Patrick P.

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

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502105, 502125, 502126, 526125, 526128, 526142, C08F 464

Patent

active

045528594

ABSTRACT:
Isotactic index improvement is achieved for C.sub.3 and higher alpha olefins in systems containing a catalyst component comprising titanium supported on a magnesium halide support. The titanium component is formed by copulverizing the magnesium halide with one or more electron donors followed by treatment with liquid titanium halide. The improvement is achieved by using a dialkylaluminoxane component with the trialkylaluminum co-catalyst normally used. In slurry polymerizations, the isotactic index of the polymer has been improved.

REFERENCES:
patent: 3135809 (1964-06-01), Bosmajian
patent: 4404344 (1983-09-01), Sinn et al.
patent: 4450242 (1984-05-01), Mink
patent: 4461846 (1984-07-01), Harris et al.

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