ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,298, issued on Dec. 9, was assigned to Eastman Chemical Co. (Kingsport, Tenn.).
"2-ethylhexanoyl substituted cellulose esters" was invented by Wesley Wayne McConnell (Kingsport, Tenn.), Mustafa Humbel Ahmed (Kingsport, Tenn.) and Bin Wang (Kingsport, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present application discloses regioselectively substituted cellulose esters comprising 2-ethylhexanoyl substituents that have desirable mechanical properties that allow the cellulose esters to be stretched into larger and thinner films while still maintaining their optical properties."
The patent was filed on Aug. 11, 2020, under Application No. 1...