US Patent Issued to 3M Innovative Properties on Feb. 24 for "Film comprising polylactic acid polymer suitable for graphic articles" (Minnesota Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,624, issued on Feb. 24, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Film comprising polylactic acid polymer suitable for graphic articles" was invented by Ning Zhou (Vadnais Heights, Minn.), Diane North (Inver Grove Heights, Minn.) and Matthew A. Jast (Richfield, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An article is described comprising a first film layer comprising polylactic acid polymer (semicrystalline polylactic acid polymer; amorphous polylactic acid polymer; or a mixture thereof); a second (e.g. polyvinyl acetate) polymer having a Tg of at least 25deg C.; plasticizer. In some embodiment, the film layer furthe...