US Patent Issued to TRINSEO EUROPE on April 15 for "Monovinylidene aromatic multilayer sheet containing impact modifiers" (Belgian, Dutch Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,219, issued on April 15, was assigned to TRINSEO EUROPE GMBH (Pfaeffikon, Switzerland).

"Monovinylidene aromatic multilayer sheet containing impact modifiers" was invented by Mark Georges Vreys (Oostakker, Belgium), Claude T. E. Van Nuffel (Oostakker, Belgium) and Abidin Balan (Breda, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are compositions including a thermoformable sheet having three of more layers. Two layers include one or more monovinylidene aromatic monomer containing polymers which are impact modified by a rubber, one or more monovinylidene aromatic monomer and unsaturated nitrile containing copolymers, or a...