US Patent Issued to TRINSEO EUROPE on Nov. 11 for "Ionomers of copolymers of vinylidene aromatic monomer and unsaturated compounds with acid groups" (Belgian, Dutch Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,466,929, issued on Nov. 11, was assigned to TRINSEO EUROPE GMBH (Pfaeffikon, Switzerland).

"Ionomers of copolymers of vinylidene aromatic monomer and unsaturated compounds with acid groups" was invented by Abidin Balan (Breda, Netherlands), Gilbert Bouquet (Ghent, Belgium) and Claude T.E. Van Nuffel (Oostakker, Belgium).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are ionomers of co-polymers of vinylidene substituted aromatic monomers and unsaturated compounds containing acid groups crosslinked by the residue of one or more metal salts and/or metal oxides of a metal having a valence of 2 or greater. The crosslinks are reversible and the weigh...