US Patent Issued to Northwestern University, Cornell University, Regents of the University of Minnesota on June 10 for "Urethane exchange catalysts and methods for reprocessing cross-linked polyurethane foams" (Pennsylvania, Illinois, Minnesota Inventors)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,778, issued on June 10, was assigned to Northwestern University (Evanston, Ill.), Cornell University (Ithaca, N.Y.) and Regents of the University of Minnesota (Minneapolis).

"Urethane exchange catalysts and methods for reprocessing cross-linked polyurethane foams" was invented by David J. Fortman (Pittsburgh), William R. Dichtel (Wilmette, Ill.), Daylan T. Sheppard (Evanston, Ill.), Kailong Jin (Minneapolis) and Christopher J. Ellison (Eden Prairie, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are methods for reprocessing polyurethane compositions such as polyurethane foams. The method comprises introducing a polyurethane co...