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. 07, 2026
Filed:
Feb. 09, 2021
The Regents of the University of California, Berkeley, CA (US);
Rohm and Haas Company, Collegeville, PA (US);
James C. Bohling, Collegeville, PA (US);
Juan F. Callejas, Collegeville, PA (US);
Alexander Katz, Berkeley, CA (US);
Manish K. Mishra, Berkeley, CA (US);
Antony K. Van Dyk, Blue Bell, PA (US);
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Berkley, CA (US);
Rohm and Haas Company, Collegeville, PA (US);
Abstract
The present invention relates to a composition comprising an aqueous dispersion of cerium (III) carbonate particles having a z-average particle size in the range of from 5 nm to 500 nm, which composition further comprises a capping ligand. The composition is useful as an additive in formulations that contain polymer, pigments, dyes, or tints, or a combination thereof, to promote color retention and attenuate unwanted color formation in coatings formed from these formulations.