| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesive which has a high adhesive force at high temperatures and can be easily peeled off from an adherend.SOLUTION: There is used a vinyl-based copolymer, which contains a bridged cyclic acrylate (A) having a bridged cyclic hydrocarbon group, a non-bridged cyclic vinyl compound (B) having a polar group and a polyfunctional vinyl compound (C) as a polymerization component, as an adhesive. The total molar number of the radical polymerizable groups of the polyfunctional vinyl compound (C) is adjusted to 1 to 7 moles based on the total of 100 moles of the radical polymerizable groups of the bridged cyclic acrylate (A) and the radical polymerizable groups of the non-bridged cyclic vinyl compound (B). The adhesive may contain an organic solvent having a boiling point of 160°C or less. The adhesive is suitable as an adhesive for a back grinding film. |
