METHOD FOR RELEASING ADHEREND AND PRESSURE-SENSITIVE ADHESIVE COMPOSITION

A method for releasing an adherend of the present invention includes a first step and a second step. In the first step, a bonded product (100) including a pressure-sensitive adhesive layer (10), and an adherend (20) bonded thereto is prepared. The pressure-sensitive adhesive layer (10) includes a pr...

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Bibliographische Detailangaben
Hauptverfasser:	NAGATA, Mizuho, MATSUSHITA, Kiichiro, TACHIKAWA, Yu, HIRANO, Keisuke
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY DYES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS POLISHES USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	A method for releasing an adherend of the present invention includes a first step and a second step. In the first step, a bonded product (100) including a pressure-sensitive adhesive layer (10), and an adherend (20) bonded thereto is prepared. The pressure-sensitive adhesive layer (10) includes a pressure-sensitive adhesive component and a heat-expandable agent. In the second step, an energy ray (R) is irradiated from the pressure-sensitive adhesive layer (10)-side of the bonded product (100) toward the adherend (20). A transmittance of the energy ray (R) in the pressure-sensitive adhesive layer (10) is 60% or more. The pressure-sensitive adhesive composition of the present invention is a composition used for forming the pressure-sensitive adhesive layer (10) in the method.