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US 10,072,187 B2Granted
Pressure-sensitive adhesive composition, pressure-sensitive adhesive layer, pressure-sensitive adhesive member and image display, and method for peeling off optical film from an image display and method for removing display panel from image display
AssigneeNitto Denko Corporation
InventorsSeiji Umemoto, Masakuni Fujita
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Abstract
The pressure-sensitive adhesive composition of the invention includes a base polymer; and amphiphilic molecule particles that have an aggregate structure of amphiphilic molecules having hydrophilic group and hydrophobic group in the same molecule. The pressure-sensitive adhesive has stable adhesive characteristics and can be reduced in adhesive strength in a desired manner depending on how it is to be used.
Claims33
A pressure-sensitive adhesive composition, comprising:
- a pressure sensitive adhesive base polymer;
- and
- amphiphilic molecule particles,
- wherein the amphiphilic molecule particles consist of aggregated amphiphilic molecules,
- wherein the amphiphilic molecules have at least one hydrophilic group and at least one hydrophobic group in the same molecule,
- wherein the amphiphilic molecule particles are in the pressure-sensitive adhesive base polymer,
- wherein the base polymer is a (meth) acrylic-based polymer, and
- wherein the pressure sensitive adhesive base polymer has a weight average molecular weight in the range of 1,000,000 to 3,000,000.
5 more elements
Dependencies are inferred from the claim text.