ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,232, issued on Aug. 26, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).
"HFO containing PU formulation" was invented by Christine Rolfsen (Lemfoerde, Germany), Marko Grever (Lemfoerde, Germany), Josep-Daniel Eslava (Rubi, Spain) and Mark Elbing (Gross Groenau, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is directed to polyol composition comprising a polyol mixture (PM) comprising a polyetherol (P1) based on a polyhydric alcohol and a polyetherol (P2) based on a diamine; and at least one hydrohaloolefin (HFO) as blowing agent, a process for preparing a polyurethane foam using said polyol composition and the ...