US Patent Issued to Eastman Chemical on June 30 for "Process for depolymerization of a poly(C2-C4 alkylene terephthalate)" (Alabama, Tennessee Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,668,563, issued on June 30, was assigned to Eastman Chemical Co. (Kingsport, Tenn.).

"Process for depolymerization of a poly(C2-C4 alkylene terephthalate)" was invented by Robert Jacks Sharpe (Madison, Ala.) and Michael Charles Morrow (Kingsport, Tenn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a process for depolymerization of a poly(C2-C4 alkylene terephthalate), which comprises contacting a poly(C2-C4 alkylene terephthalate) with methanol and a catalyst chosen from potassium carbonate, sodium carbonate, magnesium methoxide, 1,8-diazabicyclo[5.4.0]undec-7-ene, and triazabicyclodecene, at a temperature sufficient to effect said depolyme...