Patent ID: 7378457

Claim:
A radiation curable resin composition, containing essentially no volatile organic components and having enhanced low temperature flexibility, comprising: at least one vinyl dioxolane end-capped oligomer, and at least one photoinitiator to initiate radiation polymerization and cure of the oligomer, wherein the vinyl dioxolane end-capped oligomer is modified so as to enhance the low temperature flexibility of the cured resin composition, wherein the oligomer is modified by one or more of the following: modifying the chemical structure of the oligomer, increasing the length and/or flexibility of the oligmer backbone, adding one or more non-linear cyclic groups to the oligomer, increasing the length and/or flexibility of the oligmer backbone, incorporating one or more linking groups into the oligomer, adding one or more non-linear cyclic groups to the oligomer, increasing the amount and/of length of aliphatic groups within the oligomer, and increasing the distance between one or more cross-linking sites in the oligomer.