ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,430, issued on Nov. 18, was assigned to DOW GLOBAL TECHNOLOGIES LLC (Midland, Mich.).
"Polyurethane foams for comfort applications" was invented by Yasmin Srivastava (Sugarland, Texas), William A. Koonce (Lake Jackson, Texas), Philip H. Sheridan (Marietta, Ga.) and Rogelio Gamboa (Brazoria, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Polyurethane foams that are hydrophilic but nonetheless have low compression sets are made from a combination of MDI and TDI prepolymers, water, and a polymer polyol. The foams optionally are made incorporating a phase change material in the foam formulation. The phase change material does not require encapsula...