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:
Jun. 25, 2024
Filed:
Oct. 07, 2020
Rohm and Haas Company, Collegeville, PA (US);
James C. Bohling, Lansdale, PA (US);
Philip R. Harsh, Birdsboro, PA (US);
Patrick E. Hartnett, Malvern, PA (US);
Partha S. Majumdar, Harleysville, PA (US);
Qing Zhang, Collegeville, PA (US);
Rohm and Haas Company, Collegeville, PA (US);
Abstract
The present invention relates to a composition comprising an aqueous dispersion of a) polymer particles having a z-average particle size in the range of from 50 nm to 500 nm; b) anion exchange resin particles having a Dmedian particle size in the range of from 0.1 μm to 50 μm; and c) polymeric organic microspheres having a Dmedian particle size in the range of from 1 μm to 20 μm, wherein the weight-to-weight ratio of polymer particles to microspheres is in the range of from 0.5:1 to 20:1. The composition of the present invention is useful for paint compositions that form matte finishes with an excellent balance of stain blocking and stain removal properties.