Aqueous dispersion of cerium (III) carbonate particles
AssigneesThe Regents of the University of California, Rohm and Haas Company
InventorsJames C. Bohling, Juan F. Callejas, Alexander Katz, Manish K. Mishra, Antony K. Van Dyk
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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.
Claims6
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, wherein the composition further comprises a capping ligand, which is an amine carboxylic acid or a salt thereof or an amine phosphonic acid or a salt thereof.
Dependencies are inferred from the claim text.