Patent · US Expired

Low-melting tetrafluoroethylene copolymer

US6197904A · kind A · utility

16Cited by

7References

18Claims

0Family size

Assignee

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

Inventors

Subash Vishnu Gangal · Hockessin, US
Dewey Lynn Kerbow · Landenberg, US
Robert G. Brown · Derry, US
Patrick Edward Lindner · Parkersburg, US
Scot David Pedersen · Des Moines, US

Key dates

Filing date	Feb 2, 1999
Grant date	Mar 6, 2001
Priority date	—
Expiry date	Feb 2, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F210/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Copolymers of tetrafluoroethylene and ethylene having modifiers comprising perfluoro(alkyl vinyl ether) have low melting points. The copolymers also have low flex modulus.

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