C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/149
C08G 18/12 (2006.01) C08G 18/28 (2006.01) C08G 18/48 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2012827
Mo3373 LeA 26,454 CROSSLINKED POLYURETHANE-POLYUREA POWDERS, A PROCESS FOR THEIR PRODUCTION AND THEIR USE AS FILLERS IN TWO-COMPONENT POLYURETHANE COATING COMPOSITIONS ABSTRACT OF THE DISCLOSURE The present invention relates to crosslinked polyurethane-polyurea powders which are prepared by a process which comprises dispersing NCO semiprepolymers in an aqueous medium, forming powders and isolating the powders from the aqueous medium, the NCO semiprepolymers having an NCO content of 10 to 20%, being liquid at room temperature and/or dissolved in isocyanate-inert, water-soluble solvents and based on the reaction product of a) a polyisocyanate component based on at least one organic polyisocyanate with a polyol component having an average hydroxyl functionality of 2.3 to 4.0 and containing b) a hydrophobic polyol component containing less than 25% by weight of ethylene oxide units, -CH2-CH2-O-, and c) a hydrophilic polyether component comprising monohydric or polyhydric alcohols containing at least 70% by weight of structural units corresponding to the formula Image . The present invention also relates to a process for the preparation of these crosslinked polyurethane-polyurea powders and to their use as fillers in two-component polyurethane coating compositions. Mo3373
Dieterich Dieter
Reiff Helmut
Stepanek Rene
Aktiengesellschaft Bayer
Dieterich Dieter
Reiff Helmut
Stepanek Rene
Swabey Ogilvy Renault
LandOfFree
Crosslinked polyurethane-polyurea powders, a process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Crosslinked polyurethane-polyurea powders, a process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crosslinked polyurethane-polyurea powders, a process for... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1371884