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:
Jul. 29, 2025
Filed:
Aug. 05, 2020
Ppg Industries Ohio, Inc, Cleveland, OH (US);
Shanti Swarup, Allison Park, PA (US);
Jose Antonio Camerano, Ludwigsburg, DE;
Wolfgang Klaeger, Leonberg, DE;
Richard J. Sadvary, Tarentum, PA (US);
Beate Seiler, Obersulm, DE;
Chad A. Landis, Oakmont, PA (US);
Caroline S. Harris, Pittsburgh, PA (US);
Tsukasa Mizuhara, Seven Valleys, PA (US);
Hongying Zhou, Allison Park, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
A coating composition includes: an aqueous medium; a first polymer comprising first core-shell particles dispersed in the aqueous medium, where the first core-shell particles include (i) keto and/or aldo functional groups, (ii) a polymeric shell including carboxylic acid functional groups and urethane and/or urea linkages, and (iii) a polymeric core at least partially encapsulated by the polymeric shell, where the polymeric shell and/or the polymeric core include the keto and/or aldo functional groups; a second polymer dispersed in the aqueous medium, the second polymer including carboxylic acid functional groups and hydroxyl functional groups; a first crosslinker including a polyhydrazide reactive with the first core-shell particles; and a second crosslinker reactive with the first core-shell particles and/or the second polymer, where the polymeric core of the first core-shell particles are covalently bonded to at least a portion of the corresponding polymeric shell.