US Patent Issued to Eastman Chemical on Oct. 6 for "Centrifugal density separation of waste plastic" (Tennessee Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,283, issued on Oct. 6, was assigned to Eastman Chemical Co. (Kingsport, Tenn.).

"Centrifugal density separation of waste plastic" was invented by Bruce Roger DeBruin (Gray, Tenn.), Kenny Randolph Parker (Afton, Tenn.), Charles Stuart Everett (Kingsport, Tenn.), Kyle Lyn Collings (Jonesborough, Tenn.) and James Stewart Nelson (Kingsport, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for separating mixed plastic waste are provided herein. The methods generally comprise separating the mixed plastic waste into a PET-enriched stream and one or more PET-depleted streams. The separating may be accomplished using the combinations o...