Low resilience, low frequency molded polyurethane foam

Details Low resilience, low frequency molded polyurethane foam Low resilience, low frequency molded polyurethane foam

C - Chemistry, Metallurgy

08

G

C08G 18/48 (2006.01) C08G 18/10 (2006.01) C08G 18/40 (2006.01)

Patent

CA 2343316

Molded polyurethane seating foams exhibiting low resonant frequencies and low ball rebound are produced by reacting an isocyanate-terminated prepolymer prepared from a polyol component comprising in major part one or more low intrinsic unsaturation substantially polyoxypropylene polyols and/or polymer polyols with a blowing/chain extending stream comprising water and optionally amines and alkanolamines.

On a produit des mousses de polyuréthanne moulées pour sièges présentant des basses fréquences de résonance et une faible caractéristique de rebond de balle par réaction d'un prépolymère à terminaison isocyanate préparé à partir d'un composant polyol contenant en majeure partie un ou plusieurs polyols de polyoxypropylène et/ou polyols polymères sensiblement à faible insaturation intrinsèque avec un courant gonflant/d'allongement de chaîne contenant de l'eau et facultativement des amines ainsi que des alcanolamines.

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