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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 11326105 B1

PDFFull Text
Date of Patent:
May. 10, 2022

Filed:

Sep. 18, 2018

Multi-amine polyester dispersant made via an anhydride intermediate

Applicant:

Lubrizol Advanced Materials, Inc., Cleveland, OH (US);

Inventors:

Elliot Coulbeck, Manchester, GB;

Dean Thetford, Manchester, GB;

Assignee:

Lubrizol Advanced Materials, Inc., Cleveland, OH (US);

Attorneys:

Vincent Cortese

Teresan Gilbert

The Lubrizol Corporation

Primary Examiner:

Robert S Jones, Jr

Int. Cl.
CPC ...
C08G 63/91 (2006.01); C09K 23/00 (2022.01); C08G 73/02 (2006.01); C08G 69/44 (2006.01); C09D 167/02 (2006.01); C09D 177/12 (2006.01); C09K 23/16 (2022.01);
U.S. Cl.
CPC ...
C09K 23/00 (2022.01); C08G 63/91 (2013.01); C08G 69/44 (2013.01); C08G 73/02 (2013.01); C09D 167/02 (2013.01); C09D 177/12 (2013.01); C09K 23/16 (2022.01);
Abstract

The present invention relates to a dispersant derived from anhydride functionalized polyester derived from carboxylic acid functionalized polyester. The anhydride functionalized polyester is then reacted with a multi-amine species forming amide and salt bonds. The technology allows lower reaction temperatures when the multi-amine species is present. The lower reaction temperature allows the use of a broader selection of polyester repeat units.

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Coulbeck, Elliot. (2022). Multi-amine polyester dispersant made via an anhydride intermediate (U.S. Patent No. 11326105). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11326105

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