US Patent Issued to 3M Innovative Properties on April 29 for "Flame retardant pressure-sensitive adhesive and method of making" (Minnesota Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,507, issued on April 29, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Flame retardant pressure-sensitive adhesive and method of making" was invented by Eumi Pyun (St. Paul, Minn.) and Hei-Seung Harry Lee (Woodbury, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of making a (meth)acrylate copolymer having pendent phosphate-containing groups and a pressure-sensitive adhesive that contains the (meth)acrylate copolymer having pendent phosphate-containing groups are provided. The method includes reacting a precursor (meth)acrylate copolymer having pendent carboxylic acid groups with an epoxy-functionalized phosphate comp...