Title:
ADHESIVE SHEET, OPTICAL FILM WITH ADHESIVE LAYER AND OPTICAL LAMINATE
Document Type and Number:
Japanese Patent JP2022148857
Kind Code:
A
Abstract:
To provide an adhesive sheet which has ultraviolet absorbability and has excellent durability even when an adhesive layer is formed into a thin film, and to provide an optical film with an adhesive layer and an optical laminate.SOLUTION: There is provided an adhesive sheet 1 having at least an adhesive layer 11 which is used for optical applications, wherein the light transmittance (%) at a wavelength of 350 nm of the adhesive layer 11 is 20% or less and when the light transmittance (%) at a wavelength of 400 nm of the adhesive layer 11 is defined as X and the light transmittance (%) at a wavelength of 430 nm of the adhesive layer 11 is defined as Y, the following expressions (I) and (II) are satisfied and the storage elastic modulus at 23°C of the adhesive layer 11 is 0.15 MPa or more and 2 MPa or less. Y-X≥60 (I) Y/X≥4 (II)SELECTED DRAWING: Figure 1
Inventors:
MINEMATSU HIROKI
Application Number:
JP2021050687A
Publication Date:
October 06, 2022
Filing Date:
March 24, 2021
Export Citation:
Assignee:
LINTEC CORP
International Classes:
C09J7/38; B32B7/06; B32B7/12; B32B27/00; C09J11/06; C09J133/00; C09J201/00
Attorney, Agent or Firm:
Yuji Hayakawa
Keisuke Murasame
Keisuke Murasame
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