US Patent Issued to SK Innovation, SK Geo Centric on July 28 for "Low shrink tension film" (South Korean Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,375, issued on July 28, was assigned to SK Innovation Co. Ltd. (Seoul, South Korea) and SK Geo Centric Co. Ltd. (Seoul, South Korea).

"Low shrink tension film" was invented by Sang Ha Son (Daejeon, South Korea), Yong Zheng (Daejeon, South Korea) and Doh Yeon Park (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A low shrink tension packaging film contains a first polymer that is an ethylene-unsaturated carboxylic acid copolymer and a second polymer containing one or more copolymers selected from an ethylene-vinyl acetate copolymer and an ethylene-acrylate copolymer. A molar ratio of a specific structural unit of the first polymer...