Patent ID: 7687569

Claim:
A radiation-curable adhesion-promoting composition essentially comprising A) at least one unsaturated amorphous polyester composed of at least one α,β-unsaturated dicarboxylic acid component and an alcohol component, the alcohol component being composed of a dicidol mixture of the isomeric compounds 3,8-bis(hydroxymethyl)tricyclo[5.2.1.02 2.6 ]decane, 4,8-bis(hydroxymethyl)tricyclo [5.2.1.0 2.6 ]decane and 5,8-bis(hydroxymethyl)tricyclo[5.2.1.0 2.6 ]decane, where each isomer can be present in the mixture in a fraction of from 20 to 40 mol %, the sum of the three isomers making from 90 to 100 mol % and said mixture being present at not less than 5 mol % in the alcohol component of the polyester; and B) at least one polymerizable solvent (reactive diluent) which contains acrylically or methacrylically unsaturated double bonds.