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. 13, 1991
Filed:
Aug. 16, 1990
Applicant:
Inventors:
Elias Klein, Louisville, KY (US);
Lalith K Silva, Louisville, KY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210645 ; 210650 ; 210651 ; 210653 ; 21050021 ; 21050027 ; 21050035 ; 21050043 ;
Abstract
Hydrophilic semipermeable membranes based on copolymers of acrylonitrile and hydroxy-C.sub.2 -C.sub.4 -alkyl esters of (meth)acrylic acid are provided. The membranes have a substantial water regain at equilibrium, a wide range of ultrafiltration rates, and low solute adsorption by ion-exchange or hydrophobic interaction mechanisms. The membranes are particularly suitable for processing protein containing fluids, especially biological fluids such as blood or plasmas.