Catalyst and olefin polymerization

Details Catalyst and olefin polymerization Catalyst and olefin polymerization

1984-05-17

1985-12-31

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...

502119, 502125, 502128, 502131, 502134, 526125, C08F 464

Patent

active

045621683

ABSTRACT:
A polymerization catalyst providing a good balance of productivity and polymer fines prepared by reacting a metal halide, such as MgCl.sub.2, with a titanium compound, such as Ti(OEt).sub.4, to form a first catalyst component; mixing a solution of said first catalyst component with an organoaluminum compound at a temperature in the range of -100.degree. to 70.degree. C.; then heating to a higher temperature in the range of 50.degree. C. to 110.degree. C. to form additional precipitate, and then reacting the resulting solid with a halogenating agent.

REFERENCES:
patent: 3412174 (1968-11-01), Kroll
patent: 4296223 (1981-10-01), Berger
patent: 4325837 (1982-04-01), Capshaw et al.
patent: 4326988 (1982-04-01), Welch et al.
patent: 4363746 (1982-12-01), Capshaw
patent: 4384087 (1983-05-01), Capshaw

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