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. 07, 1992
Filed:
Sep. 14, 1990
Applicant:
Inventors:
William B Bedwell, Chicago, IL (US);
Stephen F Yates, Arlington Heights, IL (US);
Assignee:
CPC Engineering Corporation, Sturbridge, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; B29C / ;
U.S. Cl.
CPC ...
521 61 ; 264 41 ; 521 62 ; 521 63 ;
Abstract
A porous polysulfone membrane and process for the preparation of porous polysulfone media suitable for use in filtration comprises blending polysulfone with a particulate solid or with said particulate solid and a second polymer, extruding the resultant blend to form an article and leaching the particulate solid and second polymer from the article.