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:
Apr. 21, 1981
Filed:
Oct. 10, 1979
Applicant:
Inventor:
Marvin M Christensen, Baton Rouge, LA (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ;
U.S. Cl.
CPC ...
204296 ; 204266 ;
Abstract
A method is disclosed to fabricate shaped membranes or diaphragms with substantially leak-free seams suitable for use in electrolytic cells to produce a halogen and an alkali metal hydroxide. A preferred polymeric sheet material is formed into a desired configuration and a fusible substance is placed at or near the edges of the polymeric material prior to applying heat and, optionally, pressure to the fusible substance.