ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,990, issued on March 4, was assigned to Eastman Chemical Co. (Kingsport, Tenn.).
"Coatings with improved scratch resistance" was invented by Stacey James Marsh (Church Hill, Tenn.), Philip Jerome Geiger (Kingsport, Tenn.) and John Evan Boisseau (Kingsport, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to aliphatic polyester resins for use in coatings. More particularly this invention relates to aliphatic polyester resins containing 2,2,4,4-tetramethyl-1,3-cyclobutanediol (TMCD) that exhibit improved scratch resistance when formulated into 1 K automotive clearcoats. These polyesters can be used as the sole resin in the c...