C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
117/113, 402/144
C08G 18/80 (2006.01) B32B 15/08 (2006.01) B32B 27/40 (2006.01) C08G 18/10 (2006.01)
Patent
CA 1182945
ABSTRACT OF THE DISCLOSURE The present invention relates to thermally cross-linkable coating compositions which are liquid and stable in storage at room temperature and which contain combinations of dialkyl-malonate-blocked polyisocyanates and organic polyhydroxyl compounds as binders and, optionally, auxiliaries and additives, being charac- terized in that the binder comprises a) a polyisocyanate component containing dialkyl-malonate-blocked isocyanate groups and a content of blocked isocyanate groups, expressed as NCO, based on the weight of the polyisocyanate component excluding the weight of the blocking agent, of from about 3 to 33.6% by weight, comprising aa) at least one dialkyl-malonate-blocked, optionally alkyl-substituted diiso- cyanato-diphenyl methane and/or ab) at least one dialkyl-malonate-blocked NCO-prepolymer based on excess quan- tities of optionally alkyl-substituted diisocyanatodiphenyl methane and organic compounds containing at least two hydroxyl groups and b) a polyol component having an average hydroxyl functionality of greater than 2 and a content of alcoholic hydroxyl groups of from about 1.5 to 8% by weight, comprising at least one polyester polyol in quantities corresponding to an equivalent ratio of blocked isocyanate groups to hydroxyl groups of from about 0.6:1 to 2:1. The present invention also relates to a process for the production of coatings by coating heat-resistant substrates of any type with these coating compositions and subsequently hardening the coating at about 90 to 220°C.
390600
Bock Manfred
K"onig Klaus
Konig Eberhard
Mennicken Gerhard
Mirgel Volker
Aktiengesellschaft Bayer
Marcoux & Sher Swabey Mitchell Houle
LandOfFree
Coating compositions and a process for the production of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coating compositions and a process for the production of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coating compositions and a process for the production of... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1175840