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:
Feb. 25, 2014
Filed:
Dec. 17, 2010
Applicants:
Mamadou Diallo, Pasadena, CA (US);
Changjun Yu, Pasadena, CA (US);
Inventors:
Mamadou Diallo, Pasadena, CA (US);
Changjun Yu, Pasadena, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 20/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
Novel macromolecules for filtering contaminants from water and non-aqueous solutions. Molecules such as polyethyleneimine (PEI) may be functionalized, cross-linked, and/or quaternized to improve their binding capacity or selectivity with particular water contaminants such as bromide, nitrate, and sulfate. The macromolecules may be either recyclable or non-recyclable, and may be recovered or separated from water using means such as ultrafiltration, flocculation, or immobilization on a substrate.