US 11,912,011 B2
Composite sheet and method for manufacturing same, and laminate and method for manufacturing same
Yoshitaka Minakata, Tokyo (JP); Tomoya Yamaguchi, Tokyo (JP); and Saori Inoue, Tokyo (JP)
Assigned to Denka Company Limited, Tokyo (JP)
Appl. No. 17/770,513
Filed by Denka Company Limited, Tokyo (JP)
PCT Filed Oct. 21, 2020, PCT No. PCT/JP2020/039615
§ 371(c)(1), (2) Date Apr. 20, 2022,
PCT Pub. No. WO2021/079918, PCT Pub. Date Apr. 29, 2021.
Claims priority of application No. 2019-192948 (JP), filed on Oct. 23, 2019.
Prior Publication US 2022/0410530 A1, Dec. 29, 2022
Int. Cl. B32B 9/00 (2006.01); B32B 5/14 (2006.01); B32B 15/08 (2006.01); B32B 15/20 (2006.01); B32B 37/14 (2006.01); B32B 37/16 (2006.01); B32B 43/00 (2006.01)
CPC B32B 9/005 (2013.01) [B32B 5/147 (2013.01); B32B 15/08 (2013.01); B32B 15/20 (2013.01); B32B 37/144 (2013.01); B32B 37/16 (2013.01); B32B 43/003 (2013.01); B32B 2250/03 (2013.01); B32B 2250/40 (2013.01); B32B 2260/046 (2013.01); B32B 2305/74 (2013.01); B32B 2305/80 (2013.01); B32B 2307/538 (2013.01); B32B 2309/02 (2013.01); B32B 2309/12 (2013.01); B32B 2311/12 (2013.01); B32B 2311/24 (2013.01); B32B 2315/02 (2013.01); B32B 2398/10 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A composite sheet comprising: a nitride sintered body having a porous structure; and a semi-cured product of a thermosetting resin composition impregnated into the nitride sintered body, wherein
line roughness Rz (maximum height), specified in JIS B 0601: 2013, on at least one principal surface of the composite sheet is 10 μm or less.