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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.:

US 9856334 B1

PDFFull Text
Date of Patent:
Jan. 02, 2018

Filed:

Jan. 12, 2016

Cyclopolymeric zwitterion-dianionic resin and synthesis and uses thereof

Applicant:

King Fahd University of Petroleum and Minerals, Dhahran, SA;

Inventors:

Tawfik Abdo Saleh, Dhahran, SA;

Shaikh Asrof Ali, Dhahran, SA;

Shamsuddeen Abdullahi Haladu, Khobar, SA;

Assignee:

King Fahd University of Petroleum and Minerals, Dhahran, SA;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Clare Perrin

Int. Cl.
CPC ...
C08F 26/02 (2006.01); C08F 26/06 (2006.01); C08F 226/02 (2006.01); C08F 226/06 (2006.01); B01J 20/26 (2006.01); C02F 1/42 (2006.01); C02F 1/52 (2006.01); C08F 230/02 (2006.01); C02F 1/68 (2006.01); C02F 1/28 (2006.01); C08F 30/02 (2006.01); B01J 39/00 (2006.01); B01J 20/00 (2006.01); B01J 20/22 (2006.01); B01D 21/01 (2006.01); C02F 1/00 (2006.01); B01J 49/00 (2017.01); B01D 39/20 (2006.01); B01D 15/00 (2006.01); B03D 3/00 (2006.01); C02F 101/20 (2006.01); C02F 1/66 (2006.01);
U.S. Cl.
CPC ...
C08F 26/06 (2013.01); B01J 20/261 (2013.01); B01J 20/267 (2013.01); B01J 39/00 (2013.01); C02F 1/285 (2013.01); C02F 1/42 (2013.01); C02F 1/683 (2013.01); C08F 30/02 (2013.01); C08F 226/02 (2013.01); C08F 230/02 (2013.01); C02F 1/66 (2013.01); C02F 2101/20 (2013.01);
Abstract

Cross-linked cyclopolymeric resins from N,N-diallyl quaternary ammonium monomers and tetrallylpiperazinium cross-linking monomer or salts, solvates, tautomers or stereoisomers as adsorbent materials for the removal of heavy metals from aqueous solution. A process for producing the cross-linked cyclopolymeric resins by Butler cyclocopolymerization of the monomers with a free radical initiator. The cross linked cyclopolymeric resins are polyzwitterionic or polyzwitterionic and dianionic and feature repeating units with multiple chelating centers that heavy metal ions can bind to. In addition, a method for removing heavy metals from aqueous solution via contacting and treatment with the cross-linked cyclopolymeric resins.

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