Radiation-curable coatings and their use

A coating composition which is curable by means of high-energy radiation, comprising:

• A) oligomeric or polymeric compounds having a number average molecular weight of 300 to 1000, one or more free-radically polymerizable double bonds, and at least one further functional group reactive in a reaction selected from the group consisting of an addition reaction and a condensation reaction,
• B) oligomeric or polymeric compounds having a number average molecular weight of 300 to 1000, one or more free-radically polymerizable double bonds, and at least one additional functional group reactive in a reaction selected from the group consisting of an addition reaction and a condensation reaction, wherein the additional reactive functional group is complementary to or reactive towards the further reactive functional groups of component A),
• C) at least one compound selected from the group consisting of monomeric, oligomeric, and polymeric compounds having at least one functional group reactive for the purposes of a reaction selected from the group consisting of an addition reaction and a condensation reaction with the functional groups from component A) or component B),
• D) one or more photoinitiators as well as
• E) optionally, at least one of solvents, water, pigments, extenders and conventional lacquer additives,
• wherein component A) and component B) differ from each other and component C) contains no free-radically polymerizable double bonds.