HEAT-EXPANDABLE REMOVABLE PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET, AND METHOD OF REMOVING THE SAME

The heat-expandable removable pressure-sensitive adhesive tape of the present invention includes at least a blowing agent-containing pressure-sensitive adhesive layer A, a microparticle-containing viscoelastic substrate B, a peelable or peel-assisting film layer C, and a pressure-sensitive adhesive...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HIGUCHI NAOAKI, FORIER BART, NAKASHIMA TOORU, SUZUKI TATSUYA, VANDENHOLT MYRIAM, YAMANAKA EIJI, BOSSAERT GREET
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The heat-expandable removable pressure-sensitive adhesive tape of the present invention includes at least a blowing agent-containing pressure-sensitive adhesive layer A, a microparticle-containing viscoelastic substrate B, a peelable or peel-assisting film layer C, and a pressure-sensitive adhesive layer D. A multilayer structure containing at least the peelable or peel-assisting film layer C and the pressure-sensitive adhesive layer D is arranged on at least one side of the blowing agent-containing pressure-sensitive adhesive layer A where the blowing agent-containing pressure-sensitive adhesive layer A is in direct contact with the peelable or peel-assisting film layer C. The peelable or peel-assisting film layer C can be removed from the blowing agent-containing pressure-sensitive adhesive layer A by heat treatment after storage in an atmosphere of 75° C. for 8 weeks.