Lanxess Solutions US Inc.

Urethane Systems USA LLC

George Brereton

Venkatramanan K Madabusi

Kevin Jackson

Joseph F Stieber

Dharmasena Peramunage

Fei Wang

Ian Laskowitz

Margarita Ortiz

Thomas Peter

The present invention relates generally to a curable polyurethane prepolymer composition comprising polyurethane prepolymer obtained by the reaction of toluene diisocyanate (TDI) and at least one polyol and an ortho alkyl disubstituted dianiline, preferably 4,4'-methylene-bis-(3-chloro-2,6-diethylaniline) (MCDEA), wherein 50 to 100 wt % of the at least one polyol is at least one polycarbonate polyol.

Curable polyurethane prepolymer composition

Energy storage devices are improved by incorporating polyurethane separators, which separators comprise polyurethane polymers prepared by curing a polycarbonate based polyurethane prepolymer, which polyurethane polymers often further comprise metal or ammonium salts and are often swelled by an organic solvent.

Energy storage device comprising a polyurethane separator

A non-aqueous flow cell energy storage device comprises a ionically conductive separator, which separator comprises a polyurethane prepared by curing an isocyanate capped prepolymer, which prepolymer was prepared from a polyol having polycarbonate backbone, wherein the separator may be impregnated with electrolyte salts and/or swelled by an organic solvent.

Non-aqueous flow cell comprising a polyurethane separator

Growing community of inventors

Mahopac, NY, United States of America

George Brereton