Solid alpha-olefin polymerization catalyst components

Details Solid alpha-olefin polymerization catalyst components Solid alpha-olefin polymerization catalyst components

1990-04-24

1991-10-29

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...

502104, 502120, 502123, 502125, 502127, C08F 464

Patent

active

050616668

ABSTRACT:
A process for preparing a solid catalyst component which comprises halogenating a magnesium compound in the formula MgRR.sup.1.nCO.sub.2 l in which R and R.sup.1 are the same or different alkoxy or phenoxy groups and n is a number of from 0 to 2 with a halide of tetravalent titanium in the presence of dialkylester of a dihydric aromatic carboxylic acid and an inert hydrocarbon diluent by reacting at a temperature of from 120.degree. to 136.degree. C. and recovering the solid reaction product from the reaction mixture.

REFERENCES:
patent: 3135809 (1964-06-01), Bosmajian
patent: 4317898 (1982-03-01), Karayannis et al.
Staiger et al, Chem. Ab., 104, (1986), 51254j.
Angew. Makromol. Chemie, 94 (1981), pp. 63-89, FIGS. 14 & 15.

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