C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/08 (2006.01) C08G 18/40 (2006.01) C08G 18/79 (2006.01)
Patent
CA 2374415
The invention provides a high molecular weight polyol comprising dispersed therein the reaction product of a polyisocyanate and a low molecular weight polyol where said low molecular weight polyol is a mixture of an alkanolamine with a polyethylene glycol having a molecular weight of less than 600. The invention also provides a method of making a polyurethane foam by reacting a polyisocyanate and a polyol using a blowing agent, where the polyol comprises the polyol of the invention. The invention also relates to the foam, especially the flexible foam, obtained by the process of the invention.
L'invention concerne un polyol de poids moléculaire élevé dans lequel est dispersé un produit de réaction d'un polyisocyanate, et un polyol à faible poids moléculaire résultant du mélange d'un alcanolamine et d'un polyéthylèneglycol de masse moléculaire inférieure à 600. L'invention concerne également un procédé de production d'une mousse polyuréthane par réaction d'un polyisocyanate avec un polyol au moyen d'un gonflant, ledit polyol contenant le polyol de l'invention. L'invention concerne en outre la mousse (notamment la mousse souple) obtenue par le procédé de l'invention.
Huntsman International Llc
Smart & Biggar
LandOfFree
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