ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,037, issued on March 24, was assigned to PPG Industries Ohio Inc. (Cleveland).
"High acid value polyester" was invented by Paul Hubert Lamers (Allison Park, Pa.), Christopher A. Verardi (Pittsburgh) and Wei Wang (Allison Park, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coating composition includes (a) a melamine resin having imino and methylol functional groups that together include 30 mole % or greater of the total functionality of the melamine resin; and (b) at least one polymer reactive with (a) that is obtained from components including polytetrahydrofuran and a carboxylic acid or anhydride thereof. The polytetrahydrofuran includes gr...