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:
Nov. 01, 2016
Filed:
Nov. 26, 2013
Applicant:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Inventors:
Shaikh Asrof Ali, Dhahran, SA;
Shamsuddeen Abdullahi Haladu, Dhahran, SA;
Assignee:
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/10 (2016.01); C02F 5/12 (2006.01); C02F 103/08 (2006.01);
U.S. Cl.
CPC ...
C02F 5/12 (2013.01); C02F 2103/08 (2013.01); C02F 2303/22 (2013.01);
Abstract
The poly(zwitterion-alt-sulfur dioxide) copolymer includes a structural unit having the structural formula: wherein 'n' is the number of repeating units. The copolymer is made by cocyclopolymerizing 3-(N,N-diallyl,N-carboethoxymethylammonio)propanesulfonate with sulfur dioxide to obtain an intermediate polyzwitterion (PZ) copolymer, which is hydrolyzed to form the copolymer. The copolymer may be converted to a poly(electrolyte-zwitterion) by treatment with a base, such as sodium hydroxide.