C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 175/04 (2006.01) B05D 7/00 (2006.01) B32B 27/08 (2006.01) C09D 151/08 (2006.01) C09D 161/20 (2006.01) C09D 167/00 (2006.01)
Patent
CA 2101236
Abstract Aqueous coating compound containing a polyurethane resin- based hinder of I) from 60 to 100% by weight of a mixture of A) from 5-95% by weight of one or more self-emulsify- ing polyurethane resins in aqueous dispersion having a number average molar mass (Mn) of from 30000 to 300000 and containing carboxyl groups corresponding to an acid number of from 5 to 50, obtainable from a water dispersible polyurethane prepolymer having more than one free isocyanate group per molecule, by chain lengthening with water and B) from 95 to 5% by weight of one or more acrylated polyesters and/or acrylated polyurethanes having an acid number of from 5 to 50 in aqueous dispersion and II) from 0 to 40% by weight of one or more formaldehyde condensation resins and/or blocked polyisocyanates, the percentages by weight being based in each case on the resin solids content. The coating compounds are suitable in particular as basic lacquers for multi-coat lacquering. Coatings with good weather resistance are produced from them. 52
Doebert Jurgen
Gobel Armin
Patzschke Hans-Peter
Herberts Gesellschaft Mit Beschrankter Haftung
Kirby Eades Gale Baker
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