PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE SHEET, METHOD FOR PRODUCING PRESSURE-SENSITIVE ADHESIVE COMPOSITION, AND METHOD FOR DETECTING PRESENCE OF WATER OR WATER VAPOR
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United States of America Patent
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Issued Date -
Apr 25, 2024
app pub date -
Feb 3, 2022
filing date -
Feb 3, 2022
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Abstract
The present invention relates to a pressure-sensitive adhesive composition including a base polymer and a material that is discolored by water or water vapor, a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer containing the pressure-sensitive adhesive composition, a method for producing the pressure-sensitive adhesive composition, and a method for attaching the pressure-sensitive adhesive sheet to an adherend and detecting presence of the water or the water vapor in the attached location.
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