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. 17, 2025
Filed:
Oct. 23, 2020
Ppg Industries Ohio, Inc., Cleveland, OH (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
A polyester polymer is polymerized from an alcohol component including a diol and a polyol and an acid component including terephthalic acid and isophthalic acid, with the terephthalic acid and isophthalic acid present in a desired molar ratio. The polyester polymer also includes carboxylic acid functional groups, a weight average molecular weight (MW) of at least 5000 Daltons (Da), and an acid value (AV) of 40 to 65. The polyester polymer may be formulated into a water-based coating composition for substrates such as articles of cookware to form a coating that is highly heat resistant and flexible while also providing non-stick properties with good release.