公开(公告)号：US20240132757A1

公开(公告)日：2024-04-25

申请号：US18275947

申请日：2022-02-03

Applicant: NITTO DENKO CORPORATION

Inventor： Yosuke SHIMIZU ,  Sayaka YAMASHITA ,  Kyotaro YAMADA ,  Masatoshi KATO

IPC: C09J11/04 ,  C09J7/38 ,  C09J133/08 ,  G01N31/22

CPC classification number: C09J11/04 ,  C09J7/385 ,  C09J133/08 ,  G01N31/222 ,  C09J2301/302 ,  C09J2301/408 ,  C09J2301/50

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.