US Patent Issued to 3M Innovative Properties on Feb. 24 for "Film including solvent barrier and primer layer" (Minnesota Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,652, issued on Feb. 24, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Film including solvent barrier and primer layer" was invented by Tianyu Wu (St. Paul, Minn.), Rajdeep S. Kalgutkar (Woodbury, Minn.), Ning Zhou (Vadnais Heights, Minn.) and David B. Bilbrey (Woodbury, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Films including solvent barriers and primer layers are described. In particular, films including a substrate, the substrate including polylactic acid, a primer layer disposed on the substrate, a barrier layer disposed on the surface of the primer layer opposite the substrate, and an adhesive layer disposed on a s...