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:
Feb. 03, 2015
Filed:
Aug. 20, 2008
Applicants:
Moris S. Eisen, Tivon, IL;
Raphael Semiat, Haifa, IL;
Natalia Vainrot, Haifa, IL;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/68 (2006.01); C08G 75/20 (2006.01); C08G 65/48 (2006.01); C08J 9/26 (2006.01); C08G 75/23 (2006.01); B01D 67/00 (2006.01); B01D 71/28 (2006.01); B01D 71/82 (2006.01); C02F 1/44 (2006.01);
U.S. Cl.
CPC ...
C08G 75/23 (2013.01); B01D 67/0011 (2013.01); B01D 67/003 (2013.01); B01D 67/0093 (2013.01); B01D 71/28 (2013.01); B01D 71/68 (2013.01); B01D 71/82 (2013.01); C02F 1/44 (2013.01); B01D 2323/30 (2013.01); C02F 1/441 (2013.01); C02F 1/442 (2013.01); C02F 1/444 (2013.01); C08G 2650/20 (2013.01); C08L 2312/00 (2013.01); B01D 2325/48 (2013.01); Y10S 525/906 (2013.01); Y10S 977/781 (2013.01);
Abstract
The invention provides modified polysulfones substituted in one or more of the phenyl rings by functional groups and membranes composed of the modified polysulfones. Also provided are methods for the preparation of monodispersed nanoporous polymeric membranes. The membranes are useful for reverse osmosis, nanofiltration, and ultrafiltration, particularly for purification of water.