Patent · US Expired

High molecular weight polyolefin and catalyst and process for polymerizing said polyolefin

US6878790B2 · kind B2 · utility

2Cited by

2References

3Claims

0Family size

Assignee

The Procter & Gamble Company · US

Inventors

Judith Preuschen · Mainz, DE
Bernhard Rieger · Langenau, DE
Carsten Troll · Ulm, DE

Key dates

Filing date	Apr 8, 2003
Grant date	Apr 12, 2005
Priority date	—
Expiry date	Apr 8, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F110/14
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to polyolefins and in particular to polyolefins comprising C3-C20 monomers and having a molecular weight of at least 700 kg/mol preferably 1000 kg/mol. The present invention further relates to a hafnium based metallocene catalyst and a process for making such polyolefins.

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