Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
January 16, 2007
Patent Application Number
10404861
Date Filed
April 2, 2003
Patent Primary Examiner
Patent abstract
A heat-peelable pressure-sensitive adhesive sheet which ensures an efficient contact area even in case where the area of an adherend to be adhered is decreased and thus makes it possible to avoid adhesion failures such as chip-scattering or chipping. The heat-peelable pressure-sensitive adhesive sheet comprises a substrate and a heat-expandable pressure-sensitive adhesive layer containing heat-expandable microspheres, formed on at least one side of the substrate, wherein the surface of the heat-expandable pressure-sensitive adhesive layer before heating has a center line average roughness of 0.4 μm or less.
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