US Patent Issued to SWIMC on June 17 for "Styrene-free copolymers and coating compositions containing such copolymers" (American, French Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,141, issued on June 17, was assigned to SWIMC LLC (Cleveland).

"Styrene-free copolymers and coating compositions containing such copolymers" was invented by Robert M. O'Brien (Monongahela, Pa.), Mark Stuetelberg (Hiawatha, Kan.) and Sebastien Gibanel (Givry, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aqueous coating composition is provided that is preferably substantially free of styrene and structural units derived from styrene. The coating composition includes a resin system that preferably includes a water-dispersible polymer and an emulsion polymerized ethylenically unsaturated monomer component. The resin system is preferably form...