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:
May. 24, 2016
Filed:
Aug. 21, 2012
Xingpeng Zhang, Singapore, SG;
Lawrence C. Costa, Mansfield, MA (US);
Steven John Harrold, Vista, CA (US);
Babu Narayanswamy, Singapore, SG;
Xingpeng Zhang, Singapore, SG;
Lawrence C. Costa, Mansfield, MA (US);
Steven John Harrold, Vista, CA (US);
Babu Narayanswamy, Singapore, SG;
GENERAL ELECTRIC COMPANY, Schenectady, NY (US);
Abstract
The present disclosure describes an additive that may be used in the manufacture of thin-film polyamide composite membranes. Thin-film polyamide composite membranes are used in filtration processes, such as reverse osmosis and nanofiltration. The additive may be an amino-siloxane compound. The amino-siloxane compound includes repeated groups of silicon bonded to oxygen with at least one amine functional group. Optionally, the amino-siloxane compound may also include a hydrophilic group. The additive reacts with an aqueous phase and an organic phase to form a thin polyamide film on a porous substrate.