ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,167, issued on Aug. 25, was assigned to Mitsubishi Polyester Film GmbH (Wiesbaden, Germany).
"Recyclable PET film" was invented by Alper Unal (Ober-Hilbersheim, Germany) and Thiemo Herbst (Mainz, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a multilayer, coextruded polyester film that includes at least one outer layer (A) and a base layer (B), in which the at least one outer layer (A) includes to an extent of at least 60 wt % of a copolyester that includes units derived from dicarboxylic acids and diols, in which the units derived from dicarboxylic acids include at least 65 mol % of units derived from terep...