Rigid polyurethane foams with improved properties

Details Rigid polyurethane foams with improved properties Rigid polyurethane foams with improved properties

C - Chemistry, Metallurgy

08

G

C08G 18/48 (2006.01) C08J 9/14 (2006.01)

Patent

CA 2513589

In the process of the present invention, an organic polyisocyanate is reacted with a sorbitol-based polyether polyol having a number average molecular weight of from about 400 to about 1500, in the presence of a pentafluoropropane blowing agent, and a catalyst.

L'invention concerne un polyisocyanate organique que l'on fait réagir avec un polyol de polyéther à base de sorbitol présentant un poids moléculaire moyen en nombre d'environ 400 à environ 1500, en présence d'un agent gonflant de pentafluoropropane, et d'un catalyseur.

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