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 10479762 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 19, 2019

Filed:

Feb. 06, 2019
Applicant:

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

Inventors:

Syed M. Shakil Hussain, Dhahran, SA;

Muhammad Shahzad Kamal, Dhahran, SA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 303/32 (2006.01); C07C 309/14 (2006.01); C09K 8/584 (2006.01);
U.S. Cl.
CPC ...
C07C 303/32 (2013.01); C07C 309/14 (2013.01); C09K 8/584 (2013.01);
Abstract

Zwitterionic surfactants having a sulfonate head group and an ethoxylated alkyl tail. A method for synthesizing the surfactants via amidation of an ethoxylated carboxylic acid and an amine catalyzed by a fluoride salt as well as a sulfonation reaction using a sultone is provided.


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Hussain, Syed M. Shakil. (2019). Zwitterionic surfactant containing ethoxylate units (U.S. Patent No. 10479762). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10479762

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