Radiation cross-linkable hot-melt contact adhesives

A radiation crosslinkable hot melt pressure sensitive adhesive, comprising:

• 15 to 89.99 wt. % of at least one linear radiation crosslinkable polymer as component (A) comprising a plurality of epoxy groups, wherein the epoxy groups are statistically distributed over the length of said radiation crosslinkable polymer, wherein component (A) does not include star-shaped polymers, wherein at least 75% of component (A) is an epoxidized butadiene homopolymer, an epoxidized isoprene homopolymer, an epoxidized butadiene copolymer, an epoxidized isoprene copolymer, or mixtures thereof, and wherein said polymer does not include terminal —OH groups;
• 10 to 85 wt. % of at least one tackifying resin possessing no epoxy groups as component (B);
• 0 to 20 wt. % of at least one low molecular weight oligomer as component (C), wherein the oligomer possesses reactive groups that can react with the epoxy groups of component (A);
• and
• 0.01 to 30 wt. % of at least one additive comprising a photo initiator as component (D).