Title:
SURFACE-MODIFIED NANODIAMONDS AND METHOD FOR PRODUCING SURFACE-MODIFIED NANO CARBON PARTICLES
Document Type and Number:
WIPO Patent Application WO/2020/250769
Kind Code:
A1
Abstract:
Provided are surface-modified nanodiamonds having excellent dispersibility in organic solvents, and a method with which it is possible to introduce various surface-modifying groups and to produce surface-modified nano carbon particles easily and with little zirconia contamination. The surface-modified nanodiamonds contain nanodiamond particles and a group, represented by formula (1), that modifies the surface of the nanodiamonds. -X-R1 (1) [X denotes -NH-, -O-, -O-C(=O)-, -C(=O)-O-, -NH-C(=O)-, -C(=O)-NH-, or -S-, the bond extending to the left from X bonds to a nanodiamond particle, R1 denotes a monovalent organic group not including a hydroxyl group, a carboxyl group, an amino group, a monosubstituted amino group, a terminal alkenyl group and a terminal epoxy group, the atom bonded to X is a carbon atom, and the molar ratio of carbon atoms to the total of heteroatoms selected from the group consisting of nitrogen atoms, oxygen atoms, sulfur atoms and silicon atoms is 4.5 or more.]
More Like This:
Inventors:
KASHIWAGI TAKERU (JP)
KOYAMA HIROSHI (JP)
KOYAMA HIROSHI (JP)
Application Number:
PCT/JP2020/021927
Publication Date:
December 17, 2020
Filing Date:
June 03, 2020
Export Citation:
Assignee:
DAICEL CORP (JP)
International Classes:
C01B32/28; B82Y30/00; B82Y40/00; C09C1/44; C09C3/08
Foreign References:
| JP2019108926A | 2019-07-04 | |||
| JP2017214244A | 2017-12-07 |
Other References:
KRUEGER A; BOEDEKER T: "Deagglomeration and functionalisation of detonation nanodiamond with long alkyl chains", DIAMOND AND RELATED MATERIALS, vol. 17, no. 7-10, 2008, pages 1367 - 1370, XP023785160
WANG HAI-DONG, YANG QIAOQIN, NIU CATHERINE HUI: "Functionalization of nanodiamond particles with N,O-carboxymethyl chitosan", DIAMOND AND RELATED MATERIALS, vol. 19, 2010, pages 441 - 444, XP055772518
KRUEGER ANKE, LANG DANIEL: "Functionality is Key: Recent Progress in the Surface Modification of Nanodiamond", ADVANCED FUNCTIONAL MATERIALS, vol. 22, no. 5, 2012, pages 890 - 906, XP055133196
JOURNAL OF MATERIALS CHEMISTRY, vol. 19, 2009, pages 8432 - 8441
CHEMISTRY OF MATERIALS, vol. 16, 2004, pages 3924 - 3930
See also references of EP 3984952A4
WANG HAI-DONG, YANG QIAOQIN, NIU CATHERINE HUI: "Functionalization of nanodiamond particles with N,O-carboxymethyl chitosan", DIAMOND AND RELATED MATERIALS, vol. 19, 2010, pages 441 - 444, XP055772518
KRUEGER ANKE, LANG DANIEL: "Functionality is Key: Recent Progress in the Surface Modification of Nanodiamond", ADVANCED FUNCTIONAL MATERIALS, vol. 22, no. 5, 2012, pages 890 - 906, XP055133196
JOURNAL OF MATERIALS CHEMISTRY, vol. 19, 2009, pages 8432 - 8441
CHEMISTRY OF MATERIALS, vol. 16, 2004, pages 3924 - 3930
See also references of EP 3984952A4
Attorney, Agent or Firm:
GOTO & CO. (JP)
Download PDF: