Spherical catalyst for olefin polymerization

Details Spherical catalyst for olefin polymerization Spherical catalyst for olefin polymerization

2006-11-14

2006-11-14

Group, Karl (Department: 1755)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S901000, C526S348600, C526S348300, C502S103000, C502S115000, C502S159000, C502S118000, C502S116000, C502S125000, C502S127000

Reexamination Certificate

active

07135531

ABSTRACT:
Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of an olefin containing a solid titanium catalyst component having a substantially spherical shape and containing an internal electron donor, a support made from a magnesium compound, an alcohol, an ether, a surfactant, and an alkyl silicate. The catalyst system may further contain an organoaluminum compound and an organosilicon compound. Also disclosed are methods of making an impact copolymer involving polymerizing an olefin to provide a polyolefin matrix and polymerizing a polyolefin rubber using a catalyst component containing a support made from a magnesium compound, an alcohol, an ether, a surfactant, and an alkyl silicate.

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