Blowing agent blends

C - Chemistry – Metallurgy – 08 – L

Patent

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C08L 75/04 (2006.01) C08G 18/42 (2006.01) C08J 9/14 (2006.01)

Patent

CA 2423777

Foam blowing agent blends of trans-1,2-dichloroethylene and one or more pentanes are provided, as are polyol premixes and foam compositions containing such blends. The resulting foams exhibit dramatic improvement in fire resistance.

Mélange d'agents d'expansion moussants, formés notamment de trans-1,2-dichloroéthylène et d'au moins un pentane, notamment de prémélanges de polyalcool et de composés moussants contenant de tels mélanges. La mousse qui en résulte présente une amélioration considérable de la résistance au feu.

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