Process for the production of substantially closed-cell...

Details Process for the production of substantially closed-cell... Process for the production of substantially closed-cell...

C - Chemistry, Metallurgy

08

G

C08G 18/10 (2006.01)

Patent

CA 2044526

Substantially closed-cell rigid foams containing urethane, urea and biuret groups are produced by reacting an NCO terminated prepolymer with a compound having at least two isocyanate-reactive hydrogen atoms and a molecular weight of from about 400 to about 10,000 in the presence of a catalyst and water by any of the known techniques. The NCO terminated prepolymer is the reaction product of x parts by weight of an at least difunctional polyol having an OH value of less than 100 with y parts by weight of an at least difunctional polyisocyanate. The ratio of x to y is at least 1:10. The product foams are particularly useful as insulating materials.

Affiliated with

Also associated with

Rating

Process for the production of substantially closed-cell... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of substantially closed-cell..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of substantially closed-cell... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1343924