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. 15, 1999
Filed:
Dec. 15, 1995
Applicant:
Inventors:
Elias Klein, Louisville, KY (US);
Natarajan Balachander, Sunnyvale, CA (US);
Assignee:
Research Corporation Technologies, Inc., Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
21050041 ; 21050042 ; 2104931 ; 21050023 ; 264 41 ; 264 48 ;
Abstract
A water wettable permselective membrane for use in hemodialysis, ultrafiltration and microfiltration applications and a device containing the same are provided. The membrane having the above properties comprises a hydrophobic-base polymer, such as a polysulfone or polyethersulfone polymer, and a block copolymer additive wherein one of the blocks of the copolymer additive is a hydrophilic polymer and the other block is a hydrophobic polymer that is analogous in structure to the hydrophobic-base polymer.