PRESSURE-SENSITIVE ADHESIVE SHEET
Dossier Overview
Applicant
NITTO DENKO CORPORATION
Inventor
Mizuho CHIBA; Taiki KITAGAWA; Kakeru TSUJITA
IPC Classification
CPC Classification
Provided is a pressure-sensitive adhesive sheet that can be suppressed from being increased in peel strength even when an aqueous pressure-sensitive adhesive composition is used. The pressure-sensitive adhesive sheet includes: a base material; and a pressure-sensitive adhesive layer formed of a water-dispersed pressure-sensitive adhesive composition containing a water-dispersed polymer. A surface concentration of a carboxyl group in a surface of the pressure-sensitive adhesive layer obtained by an X-ray photoelectron spectroscopy (ESCA) gas-phase chemical modification method is equal to or less than a detection limit.
Original (Chinese)
Provided is a pressure-sensitive adhesive sheet that can be suppressed from being increased in peel strength even when an aqueous pressure-sensitive adhesive composition is used. The pressure-sensitive adhesive sheet includes: a base material; and a pressure-sensitive adhesive layer formed of a water-dispersed pressure-sensitive adhesive composition containing a water-dispersed polymer. A surface concentration of a carboxyl group in a surface of the pressure-sensitive adhesive layer obtained by an X-ray photoelectron spectroscopy (ESCA) gas-phase chemical modification method is equal to or less than a detection limit.
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