Polymerization catalyst

Details Polymerization catalyst Polymerization catalyst

1985-08-30

1986-10-21

Garvin, Patrick P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5263485, 526352, 502113, C08F 464

Patent

active

046186603

ABSTRACT:
An olefin polymerization catalyst produced by treating an inert support material, preferably a hydrated high surface area silica support having 1.00 to 1.50 hydroxyls per gram of silica with the reaction product of an organomagnesium compound and first a zirconium compound then a halogenator and tetravalent titanium compound, which when used as a cocatalyst with an organoaluminum compound produces polymers having broad molecular weight distribution.

REFERENCES:
patent: 3678025 (1972-07-01), Birrell
patent: 4109071 (1978-08-01), Berger et al.
patent: 4210559 (1980-07-01), Melquist et al.
patent: 4471066 (1984-09-01), Sakurai et al.

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