Rigid polyurethane foams

Details Rigid polyurethane foams Rigid polyurethane foams

C - Chemistry, Metallurgy

08

G

C08G 18/08 (2006.01) C08G 18/18 (2006.01) C08G 18/28 (2006.01) C08G 18/40 (2006.01) C08G 18/42 (2006.01) C08G 18/66 (2006.01)

Patent

CA 2268141

Process for making rigid polyurethane or urethane-modified polyisocyanurate foams comprising the step of reacting an organic polyisocyanate composition with an isocyanate-reactive composition comprising a polyester polyol in the presence of an amine catalyst characterized in that the pKa of the conjugated ammonium salt of said amine is less than 12.

L'invention concerne un procédé de préparation de mousses rigides de polyuréthane ou de polyisocyanurate modifié à l'uréthane consistant à faire réagir un composé polyisocyanate organique avec un composé réactif à l'isocyanate comprenant un polyol de polyester, en présence d'un catalyseur aminé. Ce procédé est caractérisé en ce que le pK¿a? du sel d'ammonium conjugué de ladite amine est inférieur à 12.

Affiliated with

Also associated with

Rating

Rigid polyurethane foams does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rigid polyurethane foams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rigid polyurethane foams will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1737662