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. 09, 2021
Filed:
Mar. 07, 2018
Ppg Industries Ohio, Inc., Cleveland, OH (US);
Edward R. Millero, Gibsonia, PA (US);
Robert Cavlovich, Gibsonia, PA (US);
Anthony M. Chasser, Allison Park, PA (US);
Troy Larimer, North Huntingdon, PA (US);
Julia Pacilio, Cleveland, OH (US);
John Robert Schneider, Allison Park, PA (US);
Kathryn A. Shaffer, Bethel Park, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
A powder coating composition grindable at non-cryogenic temperatures includes: (a) a first polymer having a number average molecular weight (Mn) of more than 1,000 and a Tg of at least 40° C.; (b) a second polymer having a Tm of at least 100° C.; and optionally (c) a cross-linker. The first polymer and the second polymer are different from one another, and each of the first and second polymers have less than 25 wt % fluorine-containing monomeric units, with wt % based on the total weight of the monomeric units in each polymer. Upon grinding at a temperature above 4° C. the coating composition has an average particle size from 15 to 150 microns. Further coating compositions, methods of preparing coating compositions, coating systems, and substrates coated with a powder coating composition are also disclosed.