| 摘要 |
Coating composition suitable for multi-layer lacquerings, with a binder composition which comprises:A) 25 to 75 wt. % of carboxyl-functional (meth)acrylic copolymers and/or carboxyl-functional polyesters, the carboxyl functionality of which corresponds to an acid number of 15 to 300 mg KOH/g,B) 25 to 75 wt. % of epoxide-functionalized crosslinker resins, at least one of which is a (meth)acrylic copolymer which has been prepared co-using tert-butyl (meth)acrylate,C) 0 to 50 wt. % of polyols which have at least two hydroxyl functions in the molecule,D) 0 to 40 wt. % of components which crosslink with hydroxyl groups to form ethers, and/or of a crosslinking agent based on triazine,E) 0 to 40 wt. % of polyisocyanates,F) 0 to 50 wt. % of at least one organic polyanhydride with at least two cyclic carboxylic acid anhydride groups per molecule,G) 0 to 20 wt. % of reactive thinners with an epoxide function,H) 0 to 10 wt. % of one or more catalysts for the reaction of carboxyl and epoxide groups.
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