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. 08, 1980
Filed:
Jul. 17, 1978
Shyam D Argade, Woodhaven, MI (US);
Thomas G Coker, Natick, MA (US);
BASF Wyandotte Corporation, Wyandotte, MI (US);
Abstract
An especially efficient and durable electrolytic cell is provided by utilizing a combined cathode and diaphragm unit wherein the cathode is made by spray coating a ferrous metal substrate with a powder metal having lower hydrogen overvoltage than said substrate to form a protected cathode surface having a larger surface area than the substrate, and vacuum depositing a polymer impregnated asbestos fiber diaphragm onto a spray coated surface of the cathode to form a fibrous diaphragm thereon. Preferably, the cathode surface is made with nickel and the polymer impregnated asbestos diaphragm contains from about 10 to about 30 percent based on the weight of asbestos of an organic cementing agent such as a fluorohydrocarbon polymer.