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:
Aug. 02, 1988
Filed:
Mar. 10, 1987
Applicant:
Inventors:
Assignee:
Membrane Products Kiryat Weizmann Ltd., Rehovot, IL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; B29C / ;
U.S. Cl.
CPC ...
21050037 ; 21050038 ; 21050040 ; 21050041 ; 264 41 ; 264216 ; 26433119 ;
Abstract
A process for preparing a microporous membrane, which comprises casting the membrane from a solution comprising a mixture of at least one pore-forming polymer and at least one film-forming polymer, and a solvent for the mixture of polymers, wherein the at least one pore-forming polymer is one which if cast alone would contract to form either large pores or a non-uniform distribution of material.