PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE SHEET AND OPTICAL FILM
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United States of America Patent
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Issued Date -
Oct 2, 2014
app pub date -
Mar 27, 2014
filing date -
Mar 28, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided are a pressure-sensitive adhesive sheet that has an antistatic property; suppresses a peeling electrification voltage when a non-antistatic treated adherend is peeled off; has a small adhesive strength occurring at high-speed peeling; has an adhesive strength occurring at low-speed peeling so large as not to cause a problem, such as lifting and peeling off; and has an excellent transparency; and a pressure-sensitive adhesive composition capable of obtaining an optical film to which the pressure-sensitive adhesive sheet is bonded. Disclosed is a pressure-sensitive adhesive composition containing a polymer (A) having a glass transition temperature of lower than 0° C. and a polymer (B) containing a reactive ionic liquid as a monomer unit and having an intrinsic viscosity (dL/g) of 0.01 or more and less than 0.5.
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