US 12,172,409 B2
Laminate of inorganic substrate/polymer film layer with attached protective film, laminate stack, laminate storage method, and laminate transport method
Kaya Tokuda, Otsu (JP); Satoshi Maeda, Otsu (JP); Tetsuo Okuyama, Otsu (JP); and Naoki Watanabe, Otsu (JP)
Assigned to TOYOBO CO., LTD., Osaka (JP)
Appl. No. 18/263,953
Filed by TOYOBO CO., LTD., Osaka (JP)
PCT Filed Feb. 22, 2022, PCT No. PCT/JP2022/007249
§ 371(c)(1), (2) Date Aug. 2, 2023,
PCT Pub. No. WO2022/186002, PCT Pub. Date Sep. 9, 2022.
Claims priority of application No. 2021-034770 (JP), filed on Mar. 4, 2021.
Prior Publication US 2024/0116274 A1, Apr. 11, 2024
Int. Cl. B32B 7/12 (2006.01); B32B 17/10 (2006.01); B32B 27/08 (2006.01); B32B 27/28 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01)
CPC B32B 17/10 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/281 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 2307/538 (2013.01); B32B 2457/00 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A laminate comprising an inorganic substrate, a polymer film layer, and a protective film in this order, wherein a surface of the inorganic substrate on an opposite side to the polymer film layer has a surface roughness Ra of 0.02 μm to 1.2 μm, and two or more laminates of the inorganic substrate and the polymer film layer are linked by the protective film.