Patent ID: 7759424

Claim:
A radiation-curably modified unsaturated amorphous polyester 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-[5.2.1.0 2,6 ]decane, 4,8-bis(hydroxymethyl)tri-cyclo[5.2.1.0 2,6 ]decane and 5,8-bis(hydroxy-methyl)tricyclo[5.2.1.0 2,6 ]decane, it being possible for each isomer to 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 compound which contains at least one ethylenically unsaturated moiety with at the same time at least one moiety that is reactive toward A) and from 2 to 100 mol % of the OH groups of component A) being reacted with component B).