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:
Nov. 19, 1991
Filed:
Jun. 05, 1990
Applicant:
Inventors:
Makoto Miyazaki, Iwaki, JP;
Tatsuo Hiyoshi, Yokohama, JP;
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 27 ; 521 30 ; 521 31 ; 525353 ; 525368 ; 525369 ; 204 98 ; 204252 ; 204296 ;
Abstract
A novel process is disclosed in which a membrane of a fluorinated resin containing a pendant precursor ion exchange group represented by the formula: