Patent ID: 7163968

Claim:
A UV curable pressure sensitive adhesive consisting essentially of: a) from 15 percent to 35 percent by weight of an epoxidized monohydroxylazed polydiene polymer which is comprised of at least two polymerizable ethenically unsaturated hydrocarbon monomers wherein one is a diene monomer which yields unsaturation suitable for epoxidation and wherein the polymer has been epoxidized to have from 0.1 to 7.0 meq of epoxy functional group per gram of polymer; b) from 10 percent to 30 percent by weight of a hydrogenated, hydroxylated polydiene polymer which has on average from more than 1 to about 2 hydroxyl groups per molecule; and c) from 1 percent to 10 percent by weight of a selectively hydrogenated starblock copolymer wherein the arms of the star comprise at least one block of hydrogenated polydiene and at least one block of poly(monovinyl arene); d) from 30 percent to 70 percent by weight of a tackifier, and e) from 0.01 percent to 3 percent by weight of a photoinitiator.