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. 07, 2018
Filed:
Jul. 22, 2015
Applicants:
China Petroleum & Chemical Corporation, Beijing, CN;
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation, Beijing, CN;
Inventors:
Yang Zhang, Beijing, CN;
Yiqun Liu, Beijing, CN;
Guoyuan Pan, Beijing, CN;
Hao Yan, Beijing, CN;
Jian Xu, Beijing, CN;
Min Guo, Beijing, CN;
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/52 (2006.01); B01D 71/38 (2006.01); B01D 67/00 (2006.01); B01D 69/12 (2006.01); C02F 1/44 (2006.01); B01D 71/08 (2006.01); B01D 69/02 (2006.01); B01D 61/02 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0093 (2013.01); B01D 67/0006 (2013.01); B01D 69/02 (2013.01); B01D 69/125 (2013.01); B01D 71/08 (2013.01); B01D 71/38 (2013.01); B01D 71/52 (2013.01); C02F 1/442 (2013.01); B01D 61/027 (2013.01); B01D 2323/30 (2013.01); B01D 2323/46 (2013.01); B01D 2325/04 (2013.01);
Abstract
A complex nanofiltration membrane comprising a substrate and a separating layer, wherein the separating layer is an oxidant-treated, crosslinked network structure formed from a hydroxyl-containing polymer, a thiol-containing silane coupling agent and a crosslinking agent, is disclosed. Also disclosed are a process for preparing the complex nanofiltration membrane and use of the complex nanofiltration membrane in water treatment.