Patent · US Expired

Polymerization catalyst

US6399532B1 · kind B1 · utility

6Cited by

1References

13Claims

0Family size

Assignee

BP Chemicals Limited · US

Inventors

Birgit Angelika Dorer · Mutterstadt, DE
David W. Pratt · New Port Richey, US
Christopher Sharp · Beverley, GB

Key dates

Filing date	Jan 5, 2000
Grant date	Jun 4, 2002
Priority date	—
Expiry date	Jan 5, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F110/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Catalyst composition for use in the polymerization of olefins comprise neutral metal complexes together with activators comprising non-aromatic boron compounds. Suitable activators are triisobutylboron together with trialkylaluminium compounds. Preferred complexes are metallocenes. The use of such activating systems obviates the need for expensive aluminoxanes or aromatic fluorine containing compounds.

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