C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
403/14, 400/5506
C08G 18/40 (2006.01) C08G 18/63 (2006.01) C08J 9/00 (2006.01) C08K 5/098 (2006.01) C08L 75/00 (2006.01)
Patent
CA 1238450
A PROCESS FOR THE PRODUCTION OF OPTIONALLY CELLULAR MOLDINGS ABSTRACT OF THE DISCLOSURE The present invention is directed to a process for the production of optionally cellular, polyurethane and/or polyurethane-urea moldings having an impervious skin by reacting in a closed mold a reaction mixture containing a) at least one organic polyisocyanate, b) at least one compound which has a molecular weight of about 400 to 12,000 and at least two isocyanate-reactive groups, and c) optionally at least one compound which has a molecular weight of from 32 to 399 and at least two isocyanate-reactive groups, wherein before the reaction takes place a surface- improving additive (e) is added containing el) a liquid and sedimentation-stable polymer disper- sion which is produced by the free radical addition polymeriza- tion or copolymerization of one or more olefini- cally unsaturated monomers in a high molecular weight compound having isocyanate-reactive groups of the type mentioned in (b), and optionally e2) a metal salt of a monocarboxylic acid having at least 8 carbon atoms in the molecule wherein additive (e) is used in a quantity such that about 0.01 to 3 parts by weight of polymer solids of the polymer dispersion (el) and up to about 2 parts by weight of metal salt (e2) are incorporated per 100 parts of component (b).
471172
Balle Gerhard
Paul Reiner
Rasshofer Werner
Aktiengesellschaft Bayer
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
LandOfFree
Process for the production of optionally cellular moldings 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 optionally cellular moldings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of optionally cellular moldings will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1206403