| 摘要 |
<p>This invention relates to a formulation for curable strippable adhesive and coating films and high performance adhesives, which comprises: (a) from 10 to 90 percent by weight of a cross-linkable epoxidized diene polymer, (b) from 0 to 70 percent by weight of a diene mono-ol polymer, with the condition that the mono-ol polymer not exceed three times the weight of the epoxidized polymer, and either (c1) from 5 to 40 weight percent of a block copolymer of a vinyl aromatic hydrocarbon and a diene having, on average, more than one vinyl aromatic hydrocarbon block per molecule, wherein the amount of vinyl aromatic hydrocarbon in the block copolymer is less than 30 % by weight, and wherein the block copolymer can optionally be functionalized by grafting onto it from 0.1 to 5 % by weight of a carboxylic acid or anhydride, and (d1) from 0 to 65 % percent by weight of a tackifying resin, or (c2) from 5 to 40 weight percent of a block copolymer of a vinyl aromatic hydrocarbon and a diene having, on average, more than one vinyl aromatic hydrocarbon block per molecule, wherein the amount of vinyl aromatic hydrocarbon in the block copolymer is from 30 % to 50 % by weight, and wherein the block copolymer can optionally be functionalized by grafting onto it from 0.1 to 5 % by weight of a carboxylic acid or anhydride, (d2) from 5 to 65 % percent by weight of a tackifying resin which has an aromaticity of from 2 to 20 percent by weight, and (e) from 0.01 to 3 percent by weight of a photo-initiator the total adding up to 100 percent.</p> |
