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.

Date of Patent:
Apr. 21, 2015

Filed:

May. 23, 2008
Applicants:

Benjamin Chu, Setauket, NY (US);

Benjamin S. Hsiao, Setauket, NY (US);

Hongyang MA, Port Jefferson, NY (US);

Inventors:

Benjamin Chu, Setauket, NY (US);

Benjamin S. Hsiao, Setauket, NY (US);

Hongyang Ma, Port Jefferson, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/10 (2006.01); B01D 71/12 (2006.01); B01D 69/12 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01);
U.S. Cl.
CPC ...
B01D 71/10 (2013.01); B01D 67/0013 (2013.01); B01D 69/02 (2013.01); B01D 69/12 (2013.01); B01D 71/12 (2013.01); B01D 2323/42 (2013.01); B01D 2325/20 (2013.01); B01D 2323/39 (2013.01);
Abstract

The present invention provides membranes having a coating layer comprising cellulose or cellulose derivative and a porous support comprising nanofibers prepared by a process of coating a solution comprising cellulose or a cellulose derivative dissolved in an ionic liquid on to a porous support layer. The present invention is useful for providing improved water flux and high rejection rates for oil/water emulsions. The present invention also provides fluid separation systems in UF, NF, RO and FO, incorporating membranes of the present invention.


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