Patent · US Expired

Dual-site olefin polymerization catalyst composition

US6906153B2 · kind B2 · utility

3Cited by

3References

13Claims

0Family size

Assignee

Borealis Technology Oy · FI

Inventors

Richard Blom · Oslo, NO
Klaus Jens · Langesund, NO
Arlid Follestad · Stathelle, NO
Olav Ryan · Maridalen, NO

Key dates

Filing date	Jan 31, 2002
Grant date	Jun 14, 2005
Priority date	—
Expiry date	Jan 31, 2022

Classification

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

Abstract

The invention provides a catalyst system (preferably a heterogeneous catalyst system) comprising: a transition metal bisphenolate catalyst (preferably a group 4 to 6 transition metal bisphenolate catalyst) and another olefin polymerization catalyst, and optionally a co-catalyst, e.g. an organoaluminium compound or a boron compound.

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