ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,213, issued on June 17, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Ink-receptive layers for durable labels" was invented by Dean M. Moren (North St. Paul, Minn.), Maciej P. Pietras (Wroclaw, Poland), Rachna Khurana (Inver Grove Heights, Minn.) and Benjamin R. Coonce (South St. Paul, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Coatable compositions for formation of ink-receptive layers, which may be aqueous suspensions, comprise a mixture of: a) colloidal silica particles; b) polyester polymers; c) polymers selected from the group consisting of polyurethane polymers and (meth)acrylate polymers; and d) crosslinkers. Ink-...