C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 271/08 (2006.01) C07C 265/04 (2006.01) C07C 265/10 (2006.01) C07C 271/10 (2006.01) C07C 271/24 (2006.01) C07D 251/34 (2006.01) C08G 18/02 (2006.01) C08G 18/72 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2110236
POLYISOCYANATE MIXTURES, A PROCESS FOR THEIR PRODUCTION AND THEIR USE FOR THE PRODUCTION OF POLYURETHANES ABSTRACT OF THE DISCLOSURE The present invention relates to polyisocyanate mixtures which are solid below 40°C and liquid above 125°C and which have a) an average isocyanate functionality of at least 2.1, b) a content of free isocyanate groups bonded to tertiary (cyclo)aliphatic carbon atoms (calculated as NCO; molecular weight = 42) of 5 to 22 wt.%, c) a urethane group content calculated as -NH-CO-O-; molecular weight = 59) of 2 to 30 wt.%, d) an isocyanate group content (calculated as C3N3O3; molecular weight = 126) of 0 to 30 wt.% and e) a carboxylic acid ester group content (calculated as -CO-O-; molecular weight= 44) of 0 to 25 wt.% and/or f) a carbonate group content (calculated as -O-CO-O-; molecular weight = 60) of from 0 to 34wt.% with the proviso that the total amount of ester groups e) and carbonate groups f) is at least 2 wt.%. The present invention also relates to a process for the production of these polyisocyanate mixtures and to their use for the production of polyurethanes, inparticular as the crosslinking component in heat-curable two-component poly- urethane powder coatings for coating heat-resistant substrates.
Halpaap Reinhard
Kahl Lothar
Laas Hans-Josef
Meier-Westhues Hans-Ulrich
Schultz Wolfgang
Aktiengesellschaft Bayer
Swabey Ogilvy Renault
LandOfFree
Polyisocyanate mixtures, a process for their production 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 Polyisocyanate mixtures, a process for their production and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyisocyanate mixtures, a process for their production and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1879484