US Patent Issued to Covestro on July 14 for "Isocyanate-reactive compositions, rigid polyurethane foams and methods for their production" (Pennsylvania Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,922, issued on July 14, was assigned to Covestro LLC (Pittsburgh).

"Isocyanate-reactive compositions, rigid polyurethane foams and methods for their production" was invented by Brandon W. Parks (McKees Rocks, Pa.) and Rick L. Adkins (Canonsburg, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Isocyanate-reactive compositions and thermally insulating rigid polyurethane foams, such as those that can be used as a thermal insulation medium in the construction of refrigerated storage devices, are disclosed. The compositions include a halogenated olefin blowing agent and a polymer polyol. The polymer polyol includes (1) a base polyol having an OH numbe...