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:
Dec. 31, 2019
Filed:
May. 15, 2012
Applicants:
Dileep Agnihotri, Round Rock, TX (US);
Xiaofei Huang, Austin, TX (US);
Hua LI, Austin, TX (US);
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 71/60 (2006.01); B01D 67/00 (2006.01); B01D 71/06 (2006.01); B01D 65/02 (2006.01);
U.S. Cl.
CPC ...
B01D 71/60 (2013.01); B01D 65/02 (2013.01); B01D 67/0088 (2013.01); B01D 71/06 (2013.01);
Abstract
A membrane with rejection properties for mono and divalent-salts, BOD and COD good resistance to cleaning chemicals and maintaining high permeability for water. A polymeric coating prepared from polydopamine or hydroquinone or catechol or mixtures thereof, is deposited. In another embodiment, coating process steps and conditions are taught to achieve thickness control to tune the rejection properties of the membranes.