| 摘要 |
The present invention relates to a radiation-curable adhesive comprising: (a) a block copolymer comprising at least two mono-alkenyl aromatic hydrocarbon blocks and at least one butadiene block, wherein the 1,2-vinyl content in the butadiene block is at least 25 % by weight; (b) from 100 to 300 parts by weight of a tackifying resin, per 100 parts by weight of block copolymer, wherein the tackifying resin is partially hydrogenated hydrocarbon resin, having an unsaturation index (Ui) in the range from 3 to 25 %; (c) 5 to 100 parts by weight of a partially or fully saturated oil; (d) optionally a photo-initiator; and (e) one or more stabilisers; wherein the glass transition temperature (Tg) as calculated by the Fox equation based on Differential Scanning Calorimetry is in the range from -15 DEG C to -5 DEG C. The present invention further relates to radiation-cured adhesives and to articles, in particular tapes, containing the radiation-curable or radiation cured adhesives. |
