Patent · US Active

Catalyst comprising chromium and zirconium for the polymerization and/or copolymerization of olefins

US7714091B2 · kind B2 · utility

1Cited by

13References

26Claims

0Family size

Assignee

Basell Polyolefine GmbH · DE

Inventors

Shahram Mihan · Bad Soden, DE
Andreas Haufe · Ludwigshafen, DE
Peter Kölle · Bad Dürkheim, DE
Joachim Wulff-Doring · Bischofswerda, DE
Ingo Treffkorn · Hagenbach, DE
Guido Funk · Worms, DE

Key dates

Filing date	Jun 9, 2005
Grant date	May 11, 2010
Priority date	—
Expiry date	Apr 29, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2410/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Catalyst for the polymerization and/or copolymerization of olefins which is obtainable by application to a finely divided inorganic support and concluding calcination at temperatures of from 350 to 1050° C. and has a chromium content of from 0.1 to 5% by weight and a zirconium content of from 0.5 to 10% by weight, in each case based on the element in the finished catalyst, with the molar ratio of zirconium to chromium being from 0.6 to 5.

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