DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET
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United States of America Patent
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Issued Date -
Jun 6, 2013
app pub date -
Dec 5, 2012
filing date -
Dec 6, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
There is provided a double-sided pressure-sensitive adhesive sheet including a pressure-sensitive adhesive body having pressure-sensitive adhesive faces (a) and (b) on both sides thereof, and a release liner (A) provided at least on the pressure-sensitive adhesive face (a) of the pressure-sensitive adhesive body. The release liner (A) includes a paper-based base material and a release layer on a face of the paper-based base material, the release layer being in contact with the pressure-sensitive adhesive face (a). The ratio of an interlayer strength of the release liner (A) with respect to a peeling force of the release liner (A) in a peeling test at 90° with respect to the pressure-sensitive adhesive face (a) is 15 or more. The double-sided pressure-sensitive adhesive sheet may preferably be used as a double-sided pressure-sensitive adhesive sheet for a flexible printed circuit board.
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