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:
Jun. 21, 1977
Filed:
Jul. 31, 1975
Applicant:
Inventors:
Assignee:
Rhone-Poulenc Industries, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
260 / ; 204252 ; 204296 ; 260 4227 ; 264 49 ; 264 453 ; 264127 ; 264175 ; 264D / ; 428422 ;
Abstract
A novel cloth comprising asbestos fibers, particularly in the form of a micro-porous membrane is provided and a method of obtaining this cloth. It is characterized in that said cloth is obtained by the dry mixing of asbestos fibers and at least one filler or charge substance, then working up by malaxation in the presence of a latex, forming the cloth and, optionally, elimination of the filler substance. The invention is particularly applicable in the production of a micro-porous membrane for use in electrolysis diaphragms.