Title:
光学デバイス用粘着シート、光学デバイス用粘着シートの製造方法、中間積層体の製造方法および中間積層体
Document Type and Number:
Japanese Patent JP7241648
Kind Code:
B2
Abstract:
To provide a pressure sensitive adhesive sheet enabling pigmentation of an adhesive layer through an irradiation of active rays at an arbitrary timing, while preventing a part other than a pigmented part from being pigmented by external light (active rays), and also to provide a manufacturing method of the pressure sensitive adhesive sheet, a manufacturing method of an intermediate laminate obtained by using the pressure sensitive adhesive sheet and an intermediate laminate obtained by the manufacturing method of an intermediate laminate.SOLUTION: A pressure sensitive adhesive sheet 1 includes an adhesive layer 2 and an active ray absorption layer 3 arranged on one side of the adhesive layer 2. The adhesive layer 2 is composed of an adhesive composition capable of lowering a visible light transmittance rate at wavelength 550 nm by irradiation of active rays. An average transmittance of active rays is 15% or less at the active ray absorption layer 3.SELECTED DRAWING: Figure 1
Inventors:
Takeshi Nakano
Tetsuji Honda
尾▲崎▼ 真由
Chihiro Funaki
Tetsuji Honda
尾▲崎▼ 真由
Chihiro Funaki
Application Number:
JP2019162986A
Publication Date:
March 17, 2023
Filing Date:
September 06, 2019
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
C09J7/38; B32B7/023; B32B27/00; C09J7/10; C09J11/04; C09J11/06; C09J201/00; G02B5/22
Domestic Patent References:
| JP9277423A | ||||
| JP2107681A | ||||
| JP2009517252A | ||||
| JP10181219A |
Foreign References:
| WO2016051914A1 | ||||
| WO2016129568A1 |
Attorney, Agent or Firm:
Hiroyuki Okamoto
Shinichi Uda
Shinichi Uda