Method of making polyurethane foam

Details Method of making polyurethane foam Method of making polyurethane foam

C - Chemistry, Metallurgy

08

J

C08J 9/04 (2006.01) C08G 18/10 (2006.01) C08G 18/48 (2006.01) C08K 5/50 (2006.01) C08L 75/08 (2006.01)

Patent

CA 2610006

An isocyanate prepolymer is made by providing an isocyanate component. A phosphite that is free of active hydrogen groups is introduced into the isocyanate component. An isocyanate-reactive component and a stoichiometric excess of the isocyanate component are reacted in the presence of the phosphite to make the isocyanate prepolymer. A polyurethane foam is made by reacting the isocyanate prepolymer and a second isocyanate-reactive component in the presence of a blowing agent. A composite article is made by forming an elastomeric layer on the outer surface of the polyurethane foam core. Due to the presence of the phosphite during reaction of the isocyanate component and the isocyanate-reactive component to make the isocyanate prepolymer, more efficient use of the phosphite is made, and the full color-reducing effect of the phosphite on the polyurethane foam is realized.

Affiliated with

Also associated with

Rating

Method of making polyurethane foam does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1650930