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:
Apr. 11, 2017
Filed:
Sep. 30, 2016
Applicants:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
King Abdulaziz City for Science and Technology, Riyadh, SA;
Inventors:
Shaikh Asrof Ali, Dhahran, SA;
Shamsuddeen Abdullahi Haladu, Dhahran, SA;
Assignees:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
King Abdulaziz City for Science and Technology, Riyadh, SA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 226/04 (2006.01); C08G 75/22 (2006.01); B01D 65/02 (2006.01); C08G 75/20 (2016.01); C08G 75/205 (2016.01); C08F 26/06 (2006.01); C08F 226/06 (2006.01); C08F 26/04 (2006.01);
U.S. Cl.
CPC ...
C08G 75/22 (2013.01); B01D 65/02 (2013.01); C08G 75/20 (2013.01); C08G 75/205 (2013.01); B01D 2321/168 (2013.01); C08F 26/04 (2013.01); C08F 26/06 (2013.01); C08F 226/04 (2013.01); C08F 226/06 (2013.01);
Abstract
A zwitterionic monomer and corresponding cyclopolymerized polyzwitterion (±) (PZ) (i.e. poly(Z-alt-SO). Phosophonate ester hydroloysis in PZ gave a pH-responsive polyzwitterionic acid (±) (PZA). The PZA under pH-induced transformation was converted into polyzwitterion/anion (±−) (PZAN) and polyzwitterion/dianion (±=) (PZDAN).