US Patent Issued to 3M Innovative Properties on Aug. 4 for "Composition comprising styrene isoprene block copolymer and ethylenically unsaturated monomer" (Minnesota, California Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,698,427, issued on Aug. 4, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Composition comprising styrene isoprene block copolymer and ethylenically unsaturated monomer" was invented by Vasav Sahni (St. Paul, Minn.), Richard B. Ross (Cottage Grove, Minn.), Saswata Chakraborty (Sunnyvale, Calif.), Wayne S. Mahoney (St. Paul, Minn.), Jason D. Clapper (Lino Lakes, Minn.) and Jacob P. Johnson (St. Paul, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compositions are described comprising at least 20 wt. % of block copolymer comprising polyvinyl aromatic end blocks and a polyisoprene midblock and at least one ethylenically unsaturated mo...