Method for preparing hard polyurethans and polyisocyanurate...

Details Method for preparing hard polyurethans and polyisocyanurate... Method for preparing hard polyurethans and polyisocyanurate...

C - Chemistry, Metallurgy

08

J

C08J 9/04 (2006.01) C08G 18/00 (2006.01) C08J 9/00 (2006.01) C08J 9/12 (2006.01)

Patent

CA 2011374

A method for preparing hard polyurethane and polyisocyanurate foams wherein an isocyanate and an active hydrogen containing compound are made to react in the presence of a catalyst, a foam stabilizer and a blowing agent which contains chloropropane, the used foam stabilizer being mainly of the non silicon type.

Une méthode pour préparer des mousses rigides de polyuréthane et de polyisocyanurate dans laquelle on fait réagir un isocyanate et un composé contenant de l'hydrogène actif en présence d'un catalyseur, d'un stabilisant de mousse et d'un agent gonflant qui contient du chloropropane, le stabilisant de mousse utilisé étant principalement de type non silicié.

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