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. 16, 2021
Filed:
Apr. 03, 2019
Rohm and Haas Company, Collegeville, PA (US);
The Regents of the University of California, Berkeley, CA (US);
James C. Bohling, Lansdale, PA (US);
Alexander Katz, Richmond, CA (US);
Manish Mishra, Berkeley, CA (US);
Clayton J. Radke, El Cerrito, CA (US);
Antony K. Van Dyk, Blue Bell, PA (US);
Rohm and Haas Company, Collegeville, PA (US);
The Regents of the University of California, Berekeley, CA (US);
Abstract
The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with a polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof and a dialkyldihydroxysilane or a salt thereof. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity.