Polyurethane or polyisocyanurate foam composition

Details Polyurethane or polyisocyanurate foam composition Polyurethane or polyisocyanurate foam composition

C - Chemistry, Metallurgy

08

J

C08J 9/02 (2006.01) C08J 9/12 (2006.01) C08L 75/04 (2006.01) C08G 18/76 (2006.01)

Patent

CA 2602443

Polyurethane or polyisocyanurate foam composition wherein at least 10 percent of the blowing gas volume is carbon dioxide formed from the reaction of polyisocyanate and water or organic acid and including a dipolar aprotic solvent in an amount from 1 percent by weight to 10 percent by weight based on the total weight of the foam forming mixture.

La présente invention se rapporte à une composition de mousse de polyuréthanne ou de polyisocyanurate dans laquelle au moins 10 % du volume du gaz de soufflage est du dioxyde de carbone formé par la réaction du polyisocyanate et de l'eau ou d'un acide organique et contenant un solvant aprotique dipolaire en quantité représentant 1 % à 10 % en poids du poids total du mélange formant la mousse.

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