Foam systems and astm e-84 class i rated foams produced...

Details Foam systems and astm e-84 class i rated foams produced... Foam systems and astm e-84 class i rated foams produced...

C - Chemistry, Metallurgy

08

G

403/14

C08G 18/42 (2006.01)

Patent

CA 1302641

Mo-2967 PU-231 FOAM SYSTEMS AND ASTM E-84 CLASS 1 RATED FOAMS PRODUCED THEREFROM ABSTRACT OF THE DISCLOSURE Rigid flame resistant polyurethane foams are made by reacting an aromatic polyisocyanate with a mixture of 25-75% oligoester and another isocyanate- reactive material in the presence of a blowing agent at an NCO index of less than 300. These foams which have an ASTM E-84 Class 1 rating are particularly useful in construction applications. Mo-2967

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