| 摘要 |
PROBLEM TO BE SOLVED: To provide a urethane adhesive having initial tack during the production of a bonded object, keeping its adhesiveness during the use of the object, and suited for recycling (re-use or disposal after separation) because the object, when becomes useless by reason of e.g. reforming or dismantling), can be easily separated into adherends by energy irradiation. SOLUTION: The adhesive composition is prepared by formulating (A) a urethane adhesive with (B) a release agent and (C) a blowing agent. This composition has initial tack during the production of a bonded object and can find its utility in fields where recycling is problematic because the object can be easily separated into adherends with very little residual adhesive. COPYRIGHT: (C)2004,JPO
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