ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,373, issued on July 15, was assigned to Aquapak IP Ltd. (Birmingham, Great Britain).
"Polyvinyl alcohol coated cellulosic products" was invented by John Williams (Chirbury, Great Britain), Sian Griffiths (Conwy, Great Britain), Robert Ashworth (Conwy, Great Britain) and David Lee Meadows (Hartpury, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacture of a coated material is provided. A polyvinyl alcohol polymer, where the polyvinyl alcohol polymer has a degree of hydrolysis of 90% or greater and a melting point in the range of 180deg C. to 225deg C. is melted on a cellulosic substrate and extruded to form a molten pol...