Process for making rigid urethane-modified polyisocyanurate...

Details Process for making rigid urethane-modified polyisocyanurate... Process for making rigid urethane-modified polyisocyanurate...

C - Chemistry, Metallurgy

08

G

C08G 18/34 (2006.01) C08G 18/18 (2006.01) C08G 18/40 (2006.01)

Patent

CA 2456119

Process for preparing rigid urethane-modified polyisocyanurate foams from polyisocyanates and polyfunctional isocyanate-reactive components in the presence of a blowing agent, a metal salt trimerisation catalyst and a functionalised carboxylic acid.

Procédé de préparation de mousses de polyisocyanurate modifiées à l'uréthane, à partir de polyisocyanates et de composants réagissant à l'isocyanate polyfonctionnel, en présence d'un agent de gonflement, d'un catalyseur de trimérisation au sel de métal et d'un acide carboxylique fonctionnalisé.

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