Patent · US Expired

Coextruded multilayer cation exchange membranes

US4437952A · kind A · utility

13Cited by

13References

23Claims

0Family size

Assignee

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

Inventors

Roger A. Smith · Kennett Square, US
Michael S. Withers · Landenberg, US

Key dates

Filing date	Oct 25, 1982
Grant date	Mar 20, 1984
Priority date	—
Expiry date	Oct 25, 2002

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2327/12
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Multilayer fluorinated cation exchange membranes prepared by coextrusion of precursor polymers.

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