C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) B32B 5/18 (2006.01) C08J 9/00 (2006.01) C08K 5/42 (2006.01) C08K 5/52 (2006.01)
Patent
CA 2185252
Rigid polyurethane foams, preferably semirigid polyurethane foams, are produced by reacting a) organic and/or modified organic polyisocyanates with b) relatively high molecular weight polyhydroxyl compounds and, if desired, c) molecular weight chain extenders and/or crosslinkers in the presence of d) water or mixtures of water and physically acting blowing agents (a), e) if desired, catalysts, f) at least one additive selected from the group consisting of at least one compound of the formulae (f1) to (f4) Image (f1), Image (f2), Image (f3) and Image (f4), where R1 and R2 are linear or branched alkyl radicals having from 1 to 32 carbon atoms X is an integer from 1 to 35 and Me is sodium, potassium, ammonium, calcium or magnesium, with the proviso that the number of cations and anions is equivalent, and also, if desired, additional other additives and g) if desired, auxiliaries. The polyurethane foams produced by this process can be used to produce composite elements comprising A) at least one covering layer and B) at least one layer comprising a rigid or semirigid polyurethane foam produced by the process of the present invention.
Chakrabarti Sarbananda
Hertel Dieter
Horn Peter
Jung Ludwig
Lehr Gerhard
Basf Aktiengesellschaft
Chakrabarti Sarbananda
Hertel Dieter
Horn Peter
Jung Ludwig
LandOfFree
Production of rigid or semirigid polyurethane foams and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Production of rigid or semirigid polyurethane foams and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of rigid or semirigid polyurethane foams and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1620259