BINDEMITTELZUSAMMENSETZUNG, DIESE ENTHALTENDE ÜBERZUGSMITTEL, DEREN HERSTELLUNG UND VERWENDUNG

摘要

PCT No. PCT/EP95/01663 Sec. 371 Date Jan. 2, 1997 Sec. 102(e) Date Jan. 2, 1997 PCT Filed May 3, 1995 PCT Pub. No. WO95/30719 PCT Pub. Date Nov. 16, 1995Binder composition, coating compositions produced therefrom and use thereof, in particular for multi-layer lacquer coatings. The binder composition contains: A) 25 to 75 wt. % of the reaction product of one or more carboxy-functionalised (meth) acrylic copolymers containing urethane groups and/or of one or more carboxy-functionalised polyesters containing urethane groups, each having an acid value of 30 to 200 mg of KOH/g, with one or more lactones, B) 25 to 75 wt. % of one or more epoxy-functionalised crosslinking agents having at least two epoxy functions per molecule with a number average molecular weight (Mn) of 200 to 10000 g/mol, C) 0 to 60 wt. % of one or more polyols having at least two hydroxyl functions per molecule, D1) 0 to 20 wt. % of one or more melamine resins, D2) 0 to 40 wt. % of one or more free or capped polyisocyanates, wherein the sum of the weight percentages of components A), B), C), D1) and D2) amounts to 100 wt. %, together with E) 0 to 10 wt. % of one or more catalysts to catalyse the reaction of carboxyl and epoxy groups, relative to the sum of weights of components A) to D2).