US 12,066,594 B2
Optical laminate, transfer laminate, and method for manufacturing optical laminate
Hiroshi Sugata, Tokyo (JP); and Shunichi Kajiya, Tokyo (JP)
Assigned to DEXERIALS CORPORATION, Tokyo (JP)
Appl. No. 16/972,254
Filed by DEXERIALS CORPORATION, Tokyo (JP)
PCT Filed May 24, 2019, PCT No. PCT/JP2019/020607
§ 371(c)(1), (2) Date Dec. 4, 2020,
PCT Pub. No. WO2019/235254, PCT Pub. Date Dec. 12, 2019.
Claims priority of application No. 2018-110294 (JP), filed on Jun. 8, 2018.
Prior Publication US 2021/0239882 A1, Aug. 5, 2021
Int. Cl. G02B 1/118 (2015.01); B29D 11/00 (2006.01); B32B 3/30 (2006.01); B32B 7/023 (2019.01); B32B 7/06 (2019.01); B32B 7/12 (2006.01)
CPC G02B 1/118 (2013.01) [B29D 11/0073 (2013.01); B32B 3/30 (2013.01); B32B 7/023 (2019.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 2551/00 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for manufacturing an optical laminate, comprising:
producing a transfer laminate having an optical body, in at least one surface of which a micro concave-convex structure in which concavities and convexities are arranged at an average cycle less than or equal to a visible light wavelength is formed, and a transfer body having an inverted concave-convex structure fitted in the micro concave-convex structure of the optical body;
forming a bonding layer yet to be cured on at least part of a surface of an adherend;
pressing the transfer laminate against the adherend such that an exposed surface of the optical body comes into contact with the bonding layer yet to be cured;
curing the bonding layer yet to be cured; and
peeling the optical body from the transfer body, wherein
an initial 90° peeling force when peeling the optical body from the transfer body is less than or equal to 70% of a 90° peeling force between the optical body and the bonding layer.