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:
Mar. 29, 2022
Filed:
Aug. 01, 2019
Dow Global Technologies, Llc, Midland, MI (US);
Rohm and Haas Company, Collegeville, PA (US);
The Regents of the University of California, Oakland, CA (US);
David Lunn, Abingdon, GB;
Sungbaek Seo, Gyeongsangnam-do, KR;
Craig Hawker, Santa Barbara, CA (US);
Alaina McGrath, Santa Barbara, CA (US);
Paul Clark, Midland, MI (US);
Antony Van Dyk, Blue Bell, PA (US);
Sang-Ho Lee, Ulsan, KR;
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
ROHM AND HAAS COMPANY, Collegeville, PA (US);
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Collegeville, PA (US);
Abstract
A branched polycarboxylic acid or salt thereof, wherein the average number of branches is (2) to (100) and the average degree of polymerization of the branches is (2) to (50), is an effective polymeric dispersant. More specifically, the polymeric dispersant is a branched polycarboxylic acid or salt thereof, in which the branched polycarboxylic acid is derived from polymerization of (meth)acrylic acid; the average degree of polymerization is (10) to (150); the average number of branches is (2) to (20); and the average degree of polymerization of the branches is (2) to (30). The branched polycarboxylic acid or salt thereof can be combined with a pigment to form an aqueous dispersion. An aqueous coating composition includes the aqueous dispersion; a polymeric binder; and a rheology modifier.