Component and catalysts for the polymerization of olefins

Details Component and catalysts for the polymerization of olefins Component and catalysts for the polymerization of olefins

1992-11-16

1993-06-22

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...

502125, 502127, 502134, B01J 3100

Patent

active

052216519

ABSTRACT:
Spherical catalyst components for the polymerization of olefins comprising a titanium compound and optionally an electron-donor supported on anhydrous magnesium chloride, characterized by a surface area between 20 and 250 m.sup.2 /g, porosity between 0.25 and 0.5 cc/g, and an X-ray spectrum where the magnesium chloride reflections are present at 2 .nu. of 35.degree. and 14.95.degree., or where the reflection at 35.degree. is substituted by a halo with the maximum intensity between 33.5.degree. and 35.degree. and the reflection of 2 .nu. at 14.95.degree. is absent.

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