Patent ID: 8063170

Claim:
Radiation curable composition comprising at least one radiation curable oligomer having a glass transition temperature T G and/or melting temperature T m of less than 30° C. obtained from the reaction of one or more carboxyl functional polyester (a) having a glass transition temperature T G and/or melting temperature T m of less than 30° C., and obtained from, with respect to the total amount of acid constituent, 75 to 100 mol % of at least one straight-chain saturated di-carboxylic aliphatic acid having from 4 to 14 carbon atoms and optionally from 0 to 25 mol % of at least one other aliphatic, cycloaliphatic and/or aromatic polycarboxylic acid and, with respect to the total amount of alcohol constituent, from 25 to 100 mol % of at least one branched chain aliphatic diol and optionally from 0 to 75 mol % of at least one other aliphatic or cycloaliphatic polyol, with (b1) one or more (meth)acrylated mono-epoxide, and/or (b2) one or more polyepoxide and one or more α, β unsaturated carboxylic acid.