US 12,441,619 B2
Surface-modified nanodiamonds and method for producing surface-modified nano carbon particles
Takeru Kashiwagi, Tokyo (JP); Hiroshi Koyama, Tokyo (JP); and Atsushi Kume, Tokyo (JP)
Assigned to DAICEL CORPORATION, Osaka (JP)
Filed by DAICEL CORPORATION, Osaka (JP)
Filed on Nov. 7, 2023, as Appl. No. 18/503,620.
Application 18/503,620 is a division of application No. 17/618,186, previously published as PCT/JP2020/021927, filed on Jun. 3, 2020.
Claims priority of application No. 2019-108926 (JP), filed on Jun. 11, 2019.
Prior Publication US 2024/0116762 A1, Apr. 11, 2024
Int. Cl. C01B 32/28 (2017.01); C09C 1/44 (2006.01); C09C 3/08 (2006.01)
CPC C01B 32/28 (2017.08) [C09C 1/44 (2013.01); C09C 3/08 (2013.01); C01P 2002/82 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A surface-modified nanodiamond comprising a nanodiamond particle and a group that surface-modifies the nanodiamond particle, the group being represented by Formula (I) and free of terminal epoxy groups:

OG Complex Work Unit Chemistry
wherein in Formula (I), X1 represents —NH—, —O—, —O—C(═O)—, —C(═O)—O—, —NH—C(═O)—, —C(═O)—NH—, or —S—, and a bond extending left from X1 is bonded to a nanodiamond particle; RA represents a divalent organic group, and an atom bonded to X1 is a carbon atom; and RB represents a monovalent organic group.