ALEXANDRIA, Va., March 24 -- United States Patent no. 12,583,996, issued on March 24, was assigned to Miliken & Co. (Spartanburg, S.C.).

"Method for making a polymer composition" was invented by Chi-Chun Tsai (Boiling Springs, S.C.), Shane M. Waybright (Boiling Springs, S.C.) and Keith A. Keller (Spartanburg, S.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An additive composition comprises phosphate ester anions conforming to a specified structure, aromatic carboxylate anions, optionally cycloaliphatic dicarboxylate anions, aluminum (III) cations, sodium cations, optionally calcium cations, optionally lithium cations, and optionally zinc (II) cations. The anions are present in the additive composition in...