Title:
METHOD FOR MANUFACTURING MACHINED OPTICAL LAMINATE WITH ADHESIVE LAYER
Document Type and Number:
WIPO Patent Application WO/2019/198616
Kind Code:
A1
Abstract:
The present invention provides a method for simply manufacturing a machined optical laminate with an adhesive layer without causing a problem while minimizing cracks in an optical film. The method for manufacturing a machined optical laminate with an adhesive layer according to the present invention includes: forming a workpiece by laminating a plurality of optical laminates with adhesive layers; and machining the outer peripheral surface of a workpiece with the cutting blade of a cutting means brought into contact with the outer peripheral surface of the workpiece, the cutting means having a rotary shaft extending in the laminate direction of the workpiece and a cutting blade configured as the outermost diameter of a body rotating about the rotary shaft. The optical laminate with an adhesive layer comprises: an optical film; a first adhesive layer arranged on one side of the optical film; a first separator arranged on the first adhesive layer opposite the optical film; a second adhesive layer arranged on the other side of the optical film; and a second separator arranged on the second adhesive layer opposite the optical film. A storage elastic modulus G' at 25°C in at least either the first adhesive layer or the second adhesive layer is 1.0 × 105 (Pa) to 2.5 × 105 (Pa), and the thickness of at least one of the adhesive layers is 50 µm or greater.
Inventors:
FUMOTO HIROAKI (JP)
KATAYAMA FUMIE (JP)
TAKADA KATSUNORI (JP)
TAKARADA SHO (JP)
HIGUCHI NAOTAKA (JP)
YAMAMOTO YUKA (JP)
KATAYAMA FUMIE (JP)
TAKADA KATSUNORI (JP)
TAKARADA SHO (JP)
HIGUCHI NAOTAKA (JP)
YAMAMOTO YUKA (JP)
Application Number:
PCT/JP2019/015002
Publication Date:
October 17, 2019
Filing Date:
April 04, 2019
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
G02B5/30; B23C3/13; B32B27/00; B32B37/12; C09J7/38; C09J201/00
Domestic Patent References:
| WO2018034148A1 | 2018-02-22 | |||
| WO2017122732A1 | 2017-07-20 |
Foreign References:
| JP2018022140A | 2018-02-08 | |||
| JP2018012182A | 2018-01-25 | |||
| JP2016136238A | 2016-07-28 | |||
| JP2016210995A | 2016-12-15 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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