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:
Jul. 27, 1982
Filed:
Oct. 14, 1980
Paul R Mucenieks, Lawrenceville, NJ (US);
FMC Corporation, Philadelphia, PA (US);
Abstract
A resin modified asbestos diaphragm is prepared by diluting a heat curable polyvinylidene fluoride homopolymer resin latex containing no more than about 5% resin solids with an aqueous solution containing about 4% to 5% sodium hydroxide. From about 6 to about 11 parts of asbestos fibers are then slowly added to this alkaline resin latex solution for each part of resin solids contained therein with agitation to produce a clear aqueous slurry of resin coated asbestos fibers. To this slurry is then added an aqueous solution of 10% to 15% sodium hydroxide to swell the asbestos fibers. The resulting slurry is deposited on a screen to form a diaphragm which is carefully dried and cured at elevated temperatures to complete the polymerization of the polyvinylidene fluoride resin and form a bonded resin coated asbestos fiber product that is dimensionally stable. Such resin modified asbestos diaphragms may be used in electrolytic cells for electrolyzing alkali metal halide solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile