OPTICAL ADHESIVE SHEET FOR FOLDABLE DEVICE

Title:

OPTICAL ADHESIVE SHEET FOR FOLDABLE DEVICE

Document Type and Number:

Japanese Patent JP2022116860

Kind Code:

A

Abstract:

To provide an optical adhesive sheet for a foldable device which is suitable for suppressing peeling from a folded adherend.SOLUTION: An optical adhesive sheet S (optical adhesive sheet for foldable device) has an adhesive layer 10. The adhesive layer 10 has shear storage elastic modulus at 25°C of 20-50 kPa. The adhesive layer 10 has a first adhesive force Xa at 25°C with respect to the adherend after a heat pressure treatment at 50°C and 0.5 MPa for 15 minutes after sticking to the adherend, and standing at 25°C for 72 hours after the heat pressure treatment. The adhesive layer 10 has a second adhesive force Xb at 60°C with respect to the adherend after sticking to the adherend, the heat pressure treatment, and the standing. The first adhesive force Xa and the second adhesive force Xb satisfy 0.5≤Xb/Xa≤1.0.SELECTED DRAWING: Figure 1

More Like This:

JP3487940	ADHESIVE COMPOSITION
JP5556433	The manufacturing method of a thermally conductive pressure sensitive adhesive constituent and a thermally conductive pressure sensitive adhesive constituent, a thermally conductive pressure-sensitive adhesiveness sheet, and electronic parts
WO/2023/021975	COMPOSITION FOR FORMING PRESSURE-SENSITIVE ADHESIVE, PRODUCTION METHOD THEREFOR, AND PRESSURE-SENSITIVE ADHESIVE COMPOSITION

Inventors:

NAGATA TAKUYA
TAKARADA SHO
NODA MINAKO

Application Number:

JP2021013258A

Publication Date:

August 10, 2022

Filing Date:

January 29, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NITTO DENKO CORP

International Classes:

C09J133/04; C09J7/38

Attorney, Agent or Firm:

Hiroyuki Okamoto
Shinichi Uda

Previous Patent: Optical adhesive sheet for foldable devices

Next Patent: Isothiocyanate-enriched moringa and method of making same