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:
Jan. 27, 1976
Filed:
Feb. 13, 1975
Applicant:
Inventors:
Teruyuki Misumi, Yokohama, JA;
Sakae Tsushima, Yokohama, JA;
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01K / ; C08F / ;
U.S. Cl.
CPC ...
2041 / ; 204296 ; 204301 ; 260 / ;
Abstract
A specific class of anionic ion-exchange membranes, comprising a crosslinked vinyl imidazole polymer or copolymer film, is suitable for use in electrodialysis process by use of ion-exchange membranes of an aqueous solution containing organic contaminating electrolyte such as humic acid without organic contamination.