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. 08, 1977
Filed:
Sep. 23, 1975
Applicant:
Inventors:
Hiroshi Fujiwara, Saitama, JA;
Koichi Asano, Saitama, JA;
Asao Takahashi, Saitama, JA;
Akio Sugishita, Saitama, JA;
Assignee:
Maruzen Oil Co. Ltd., Osaka, JA;
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 98 ; 204128 ; 204296 ; 20415911 ; 2041 / ;
Abstract
A method for diaphragm electrolysis of an alkali metal halide which comprises electrolyzing an alkali metal halide solution by passing an electric current through an anode compartment and a cathode compartment of an electrolytic cell containing the alkali metal halide solution with an ion-exchange membrane of a graft copolymer of a polyolefin main chain and a side chain composed mainly of hydroxystyrene and grafted to the polyolefin main chain separating the anode compartment and the cathode compartment.