Special UV absorbers for UV curable protective coatings

Compounds of general formula (I) A - X (- G) n (I) wherein A represents ** ** Formula wherein Y1 and Y2 independently of one another substituents of the general formula ** Formula * * in which r represents 0 or 1, preferably represents 1, R1, R2, R3 independently of one another represent H, OH, C1-20 alkyl, C4-12 cycloalkyl, C2-20 alkenyl, C1-20 alkoxy, cycloalkyl C4 -12, C2-20 alkenyloxy, C7-20 aralkyl, halogen, -CN, C1-5 haloalkyl, -SO 2 R ', -SO3H, -SO3M (M> = alkali metal), -COOR', -CONHR ', -CONR'R ", -OCOOR ', -OCOR', -OCONHR ', (meth) acrylamido, (meth) acryloxy, C6-12 aryl optionally substituted with C1-12 alkoxy C1-12 alkyl, CN and / or halogen or C3-12 heteroaryl optionally substituted with C1-12 alkoxy C1-12 alkyl, CN and / or halogen, wherein M represents an alkali metal cation, R 'and R "represents H, C1- alkyl 20, C4-12 cycloalkyl, C6-12 aryl optionally substituted with C1-12 alkoxy C1-12 alkyl, CN and / or halogen or heter C3-12 Oaryl optionally substituted with C1-12 alkoxy C1-12 alkyl, CN and / or halogen, X represents a linker linear open chain or branched optionally substituted carbon, oxygen, nitrogen, sulfur, phosphorus and / or silicon chain, T represents an acrylate moiety -O- (C> = O) -CH> = CH2 methacrylate or a residue -O- (C> = O) -C (CH3)> = CH2, n represents an integer of 2 to 5.