Process for rigid polyurethane foams

Details Process for rigid polyurethane foams Process for rigid polyurethane foams

C - Chemistry, Metallurgy

08

J

C08J 9/00 (2006.01) C08G 18/32 (2006.01) C08G 18/38 (2006.01) C08J 9/14 (2006.01)

Patent

CA 2175193

Process for the preparation of a fine celled closed celled rigid polyurethane or urethane-modified polyisocyanurate foam comprising the step of reacting a polyfunctional isocyanate-reactive composition with a polyisocyanate composition wherein the foam-forming composition comprises carbon black.

Procédé de préparation de mousse rigide à alvéoles fermées et fines de polyisocyanurate modifié par polyuréthane ou uréthane, consistant à faire réagir une composition réagissant avec l'isocyanate polyfonctionnel, avec une composition de polyisocyanate, dans lequel la composition formant la mousse comporte du noir de carbone.

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