The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 1981
Filed:
May. 03, 1978
Applicant:
Inventors:
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 27 ; 204296 ; 428421 ;
Abstract
A cation exchange membrane of a fluorinated polymer is formed by incorporating fibrils of polytetrafluoroethylene into a cation exchange resin of a fluorinated polymer having carboxylic acid groups or functional groups which can be converted to carboxylic acid groups.