Patent · US Expired

Polymers of substituted cyclopentenes

US6258908A · kind A · utility

1Cited by

4References

3Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Stephan James McLain · Wilmington, US
Elizabeth Forrester McCord · Hockessin, US
Alison Margaret Anne Bennett · Wilmington, US
Steven Dale Ittel · Wilmington, US
Karl Jeffrey Sweetman · Wilmington, US
Mark F. Teasley · Landenberg, US

Key dates

Filing date	Mar 26, 1999
Grant date	Jul 10, 2001
Priority date	—
Expiry date	Mar 26, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F132/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Substituted cyclopentenes, such as alkyl cyclopentenes, are polymerized by selected .alpha.-imine complexes of nickel and palladium. The polymers are useful as molding resins or elastomers. Also disclosed herein are novel catalysts for the polymerization of cyclopentenes to form novel higher melting homopolycyclopentenes.

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