Radiation-cured substances

A flatting composition comprising

• (A) a coating component comprising a mixture of acrylic or methacrylic compounds containing 1to 35% by weight epoxy (meth)acrylates, based on the total quantity of acrylic or methacrylic compounds, the mixture being obtainable by a process comprising the following steps carried out consecutively:
• a) esterifying one or more hydroxyl compounds (I) with acrylic acid and/or methacrylic acid,
• b) optionally adding more acrylic acid and/or methacrylic acid, and
• c) reacting the excess acrylic acid and/or methacrylic acid with one or more epoxides in the presence of the esterification product from step a);
• and
• (B) 0.01 to 20% by weight, based on the weight of the flatting compositions as a whole, of a dimerdiol component comprising one or more dimerdiol (meth)acrylates with a degree of esterification of at least 50%.

A process for the production of a mixture of acrylic or methacrylic compounds, comprising carrying out the following steps consecutively:

• a) esterifying one or more hydroxyl compounds (I) with acrylic acid and/or methacrylic acid,
• b) optionally adding more acrylic acid and/or methacrylic acid, and
• c) reacting the excess acrylic acid and/or methacrylic acid with one or more epoxides in the presence of the esterification product from step a),
• in a manner and with amounts of reactants such that the resulting product contains 1 to 35% by weight of epoxy (meth)acrylates, based on the total quantity of acrylic or methacrylic compounds.