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:
Aug. 25, 2026
Filed:
Apr. 16, 2021
Rohm and Haas Company, Collegeville, PA (US);
Qing Zhang, Collegeville, PA (US);
Andrew J. Swartz, Fleetwood, PA (US);
Michael W. Leonard, Collegeville, PA (US);
Rohm and Haas Company, Collegeville, PA (US);
Abstract
The present invention relates to a waterborne composition comprising an aqueous dispersion of first and second multistage polymer particles, wherein each of the first and second polymer particles comprises a water-occluded core and a high Tpolymeric shell wherein the second multistage polymer particles further comprise a polymeric binder layer superposing the shell. The composition of the present invention is useful for reducing the load of TiOin paint formulations, while producing coatings with excellent hiding and scrub resistance.