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:
Jul. 12, 2016
Filed:
Apr. 15, 2014
Applicant:
Dow Global Technologies Llc, Midland, MI (US);
Inventors:
Mou Paul, Edina, MN (US);
William E. Mickols, Bartlesville, OK (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/56 (2006.01); B01D 67/00 (2006.01); B01D 69/12 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0006 (2013.01); B01D 67/0088 (2013.01); B01D 69/12 (2013.01); B01D 69/125 (2013.01); B01D 71/56 (2013.01); B01D 2323/40 (2013.01);
Abstract
A method for making a composite polyamide membrane comprising a porous support and a thin film polyamide layer, wherein the method comprises the step of applying a polar solution including a polyfunctional amine monomer and non-polar solution including a polyfunctional acyl halide monomer to a surface of the porous support and interfacially polymerizing the monomers to form a thin film polyamide layer, wherein the method is characterized by the step of applying a non-polar solution comprising an aliphatic acyclic tertiary amine compound to the support.