| 摘要 |
PROBLEM TO BE SOLVED: To obtain a cooling-and-peeling type adhesive composition that is reused after release of an adherend by reducing an adhesive force once, is surely stuck fast to an adherend during processing of the adherend even at the processing temperature of 180°C and exhibits such a proper adhesion as to readily release the adherend while retaining a holding power of a certain degree in before and after the processing when the holding is not required and a cooling-and-peeling type adhesive sheet. SOLUTION: The cooling-and-peeling type adhesive composition comprises an adhesive polymer as an active ingredient, has an adhesive force (initial adhesive force) at 23°C after lamination at 100°C of ≥0.01 N/25 mm, an adhesive force (high-temperature adhesive force) at 180°C of ≥0.03 N/25 mm and an adhesive force (adhesive force after heating) at 23°C after heating at 180°C for one hour and cooling from a heated state to 23°C of ≤3 N/25 mm. The cooling-and-peeling type adhesive sheet uses the composition. COPYRIGHT: (C)2008,JPO&INPIT
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