ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,535, issued on Dec. 23, was assigned to Arkema France (Puteaux, France).
"Stable aqueous polymer dispersions" was invented by Leo Mario Saija (Bagnolo in Piano, Italy), Mario Lugli (Fabbrico, Italy), Flippo Finetti (Parma, Italy) and Umberto Amadei (Commessaggio, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to aqueous polymer dispersions stable for at least 12 h, when dissolved in high amount of organic solvents and acidified at low pH (pHgreater than2). The polymer comprises units and/or groups issued from: a) at least one (meth)acrylic monomer which is (meth)acrylic ester of a C1-C12 alcohol without any other function...