the present invention relates to urethane acrylates , which may be cured with high - energy radiation , in which the urethane acrylates are the reaction product of a ) a polyisocyanate component containing 20 to 100 mole %, based on the moles of the polyisocyanate component a ), of iminooxadiazine dione group - containing polyisocyanate trimers corresponding to formula a wherein r 1 , r 2 and r 3 are the same or different and represent linear or branched , c 4 - c 20 alkyl groups and x is the same or different and represents isocyanate groups or isocyanate group - containing radicals that also contain iminooxadiazine dione , isocyanurate , uretdione , urethane , allophanate , biuret or oxadiazine trione groups , wherein r 1 , r 2 and r 3 are attached to a nitrogen atom , with b ) an alcohol component containing at least one monobasic , hydroxy - functional , linear or branched c 1 - c 12 alkyl ester of acrylic acid . the present invention further relates to the use of the urethane acrylates as binder components for coating compositions that are curable with high - energy radiation .