C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/78 (2006.01) C08G 18/30 (2006.01) C08G 18/65 (2006.01) C08G 18/72 (2006.01) C08G 18/79 (2006.01) C08G 18/80 (2006.01) C09D 5/03 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2130075
The present invention relates to polyaddition compounds that are solid below 40°C and liquid above 125°C and contain, based on the weight of the polyaddition compounds, a) 0 to 2% by weight of free isocyanate groups (calculated as NCO; molecular weight = 42), b) 3 to 16% by weight of uretdione groups (calculated as C2N2O2; molecular weight = 84), c) 10 to 22% by weight of urethane groups (calculated as -NH-CO-O-; molecular weight = 59), d) 0 to 20% by weight of carboxylic acid ester groups (calculated as - CO-O-; molecular weight = 44) and e) of 0 to 25% by weight of carbonate groups (calculated as -O-CO-O-; molecular weight = 60), provided that the total content of carboxylic acid ester groups and carbonate groups is at least 1 % by weight. The present invention also relates to a process for the preparation of these polyaddition compounds and to their use as a starting component for the manufacture of polyurethane plastics, especially as the cross-linking component in thermally cross-linkable two-component polyurethane powder coatings for heat-resistant substrates.
Halpaap Reinhard
Laas Hans-Josef
Meier-Westhues Hans-Ulrich
Schultz Wolfgang
Aktiengesellschaft Bayer
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
LandOfFree
Uretdione powder coating cross-linking agents having a low... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Uretdione powder coating cross-linking agents having a low..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Uretdione powder coating cross-linking agents having a low... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1787440