Process to enhance polyurethane foam performance

Details Process to enhance polyurethane foam performance Process to enhance polyurethane foam performance

C - Chemistry, Metallurgy

08

G

C08G 18/18 (2006.01) C08G 18/08 (2006.01) C08G 18/40 (2006.01) C08G 18/76 (2006.01) C08J 9/00 (2006.01)

Patent

CA 2434309

An improved process to enhance polyurethane foam performance is described. Polyurethane foam is prepared by reactions between a polyisocyanate and a polyfunctional isocyanate-reactive component wherein said reactions are conducted in the presence of catalysts composed of (a) a specific reactive tertiary amine compound selected from the group consisting of bis(dimethylaminopropyl)amino-2-propanol, bis(dimethylaminopropyl)amine, dimethylaminopropyldipropanolamine, bis(dimethylamino)-2-propanol, N,N,N'- trimethyl-N'-hydroxyethyl-bis(aminoethyl)ether and mixtures thereof; and (b) at least one carboxylic acid salt of the specific reactive tertiary amine compound selected from the group consisting of hydroxy-carboxylic acid salts and halo-carboxylic acid salts.

L'invention porte sur un procédé améliorant les qualités du polyuréthane expansé consistant à faire réagir un polyisocyanate avec un composant polyfonctionnel réagissant avec l'isocyanate, en présence de catalyseurs se composant de: (a) un composé réactif spécifique d'amine tertiaire choisi parmi le bis(diméthylaminopropyl)amino-2-propanol, la bis(diméthylaminopropyl)amine, la diméthylaminopropyldipropanolamine, le bis(diméthylamino)-2-propanol, la N,N,N'-triméthyl-N'-hydroxyéthyl-bis(aminoéthyl)éther, et leurs mélanges; et (b) au moins un sel d'acide carboxylique du composé réactif spécifique d'amine tertiaire choisi parmi des sels d'acide hydroxy-carboxylique et des sels d'acide halo-carboxylique.

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