Patent · US Active

Preparation of supported catalyst systems containing reduced amounts of aluminoxanes

US8680001B2 · kind B2 · utility

0Cited by

16References

7Claims

0Family size

Assignee

Basell Polyolefine GmbH · DE

Inventors

Heike Gregorius · Kastellaun, DE
Volker Fraaije · Frankfurt, DE
Manfred Lutringshauser · Bischofswerda, DE

Key dates

Filing date	Sep 24, 2008
Grant date	Mar 25, 2014
Priority date	—
Expiry date	Feb 24, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F110/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a process for preparing a catalyst solid for olefin polymerization, comprising a finely divided support, an aluminoxane and a metallocene compound, which comprises: a) firstly combining the finely divided support with the aluminoxane and subsequently b) adding the reaction product of a metallocene compound with at least one organometallic compound to the modified support, catalyst solids obtainable by this process, catalyst systems comprising these catalyst solids, their use for the polymerization of olefins and a process for the polymerization of olefins.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.