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. 15, 2012
Filed:
Apr. 15, 2009
Christopher James Kurth, Eden Prairie, MN (US);
Jeffrey Alan Koehler, Pasadena, CA (US);
Meijuan Zhou, Fremont, CA (US);
Brett Anderson Holmberg, Los Angeles, CA (US);
Robert Leon Burk, Seattle, WA (US);
Christopher James Kurth, Eden Prairie, MN (US);
Jeffrey Alan Koehler, Pasadena, CA (US);
Meijuan Zhou, Fremont, CA (US);
Brett Anderson Holmberg, Los Angeles, CA (US);
Robert Leon Burk, Seattle, WA (US);
NanoH20, Inc., El Segundo, CA (US);
Abstract
An interfacial polymerization process (IFP) for preparing a highly permeable TFC RO membrane by contacting on a porous support membrane for IFP, a polyfunctional acyl halide monomer and a polyamine monomer and recovering a highly permeable thin film (TFC) reverse osmosis (RO) membrane. At least one of solutions may contain nanoparticle additives which may release ions into solution and at least one of the solutions may contain additional ions from a second additive. The presence of the nanoparticle additives during IFP may increase the hydrophilicity and/or permeability of the recovered membrane compared to a control membrane. The presence of the additional ions from the second additive may also increase the permeability of the recovered membrane.