Surface-modified inorganic nitride, composition, thermally conductive material, and device with thermally conductive layer

Patent metadata

Field	Value
Publication number	US-12030774-B2
Application number	US-202016740786-A
Country	US
Kind code	B2
Filing date	Jan 13, 2020
Priority date	Jul 14, 2017
Publication date	Jul 9, 2024
Grant date	Jul 9, 2024

Abstract

The present invention provides a surface-modified inorganic nitride having excellent dispersibility. Furthermore, the present invention provides a composition, a thermally conductive material, and a device with a thermally conductive layer which contain the surface-modified inorganic nitride. The surface-modified inorganic nitride of the present invention includes an inorganic nitride, and a compound which is represented by General Formula (1) and is adsorbed onto a surface of the inorganic nitride.

First claim

What is claimed is:

1. A surface-modified inorganic nitride comprising:
an inorganic nitride; and
a compound which is represented by General Formula (1) and is adsorbed onto a surface of the inorganic nitride,

in General Formula (1), m represents an integer of 0 or greater and in a case where m is 0, Z is directly bonded to X; n represents an integer 3 to 6; X represents a benzene ring group or a heterocyclic group, which may have a substituent; L 1 represents an arylene group which may have a substituent, an ester group, an ether group, a thioester group, a thioether group, a carbonyl group, —NR N —, an azo group, or an unsaturated hydrocarbon group which may have a substituent; Z represents an aryl group or a heterocyclic group, which may have a substituent; a plurality of m's may be the same as or different from each other; in a case where a plurality of L 1 's are present, the plurality of L 1 's may be the same as or different from each other; a plurality of Z's may be the same as or different from each other; R N represents a hydrogen atom, or an organic group which has 1 to 10 carbon atoms and may have a substituent.

2. The surface-modified inorganic nitride according to claim 1 ,
wherein the compound has one or more specific functional groups selected from the group consisting of an aldehyde group, a hydroxyl group, a carboxylic acid group, an isocyanate group, an isothiocyanate group, a cyanate group, an acyl azide group, a succinimide group, a sulfonyl chloride group, a carboxylic acid chloride group, an onium group, a carbonate group, an aryl halide group, a carbodiimide group, an acid anhydride group, a phosphonic acid group, a phosphinic acid group, a phosphoric acid group, a phosphoric acid ester group, a sulfonic acid group, a halogen atom, a halogenated alkyl group, a nitrile group, a nitro group, an imidoester group, an alkoxycarbonyl group, an alkoxysilyl group, an acryloyl group, a methacryloyl group, an oxetanyl group, a vinyl group, an alkynyl group, a maleimide group, a thiol group, an amino group, an oxiranyl group, and a silyl group.

3. The surface-modified inorganic nitride according to claim 2 ,
wherein the compound has one or more specific functional groups selected from the group consisting of a hydroxyl group, an amino group, an acid anhydride group, a thiol group, a carboxylic acid group, an acryloyl group, a methacryloyl group, and a vinyl group.

4. The surface-modified inorganic nitride according to claim 3 ,
wherein the compound has two or more of the specific functional groups.

5. The surface-modified inorganic nitride according to claim 3 ,
wherein at least one of Z's is an aryl group or a heterocyclic group, which has a substituent containing the specific functional group.

6. The surface-modified inorganic nitride according to claim 2 ,
wherein the compound has two or more of the specific functional groups.

7. The surface-modified inorganic nitride according to claim 2 ,
wherein at least one of Z's is an aryl group or a heterocyclic group, which has a substituent containing the specific functional group.

8. The surface-modified inorganic nitride according to claim 2 ,
wherein X is a benzene ring group.

9. The surface-modified inorganic nitride according to claim 2 ,
wherein the compound has four or more benzene ring groups.

10. The surface-modified inorganic nitride according to claim 1 ,
wherein X is a benzene ring group.

11. The surface-modified inorganic nitride according to claim 1 ,
wherein the compound has four or more benzene ring groups.

12. The surface-modified inorganic nitride according to claim 1 ,
wherein all of the plurality of m's represent an integer of 1 or greater.

13. The surface-modified inorganic nitride according to claim 1 ,
wherein the inorganic nitride is at least one kind of nitride selected from the group consisting of boron nitride and aluminum nitride.

14. The surface-modified inorganic nitride according to claim 13 ,
wherein the inorganic nitride is boron nitride.

15. A composition comprising:
the surface-modified inorganic nitride according to claim 1 ; and
a polymerizable monomer.

16. The composition according to claim 15 ,
wherein the polymerizable monomer or a cured substance thereof exhibits liquid crystallinity.

17. The composition according to claim 15 that is used for forming a thermally conductive material.

18. A thermally conductive material comprising the surface-modified inorganic nitride according to claim 1 .

19. The thermally conductive material according to claim 18 that is in the form of a sheet.

20. A device with a thermally conductive layer, comprising:
a device; and
a thermally conductive layer which is disposed on the device and contains the thermally conductive material according to claim 18 .

Assignees

• Fujifilm Corp

Inventors

• Hitomi Seiichi
• Takahashi Keita
• Hayashi Naoyuki
• Hayashi Daisuke

Classifications

• C09D157/12

  containing nitrogen atoms · CPC title

• C09D157/10

  containing oxygen atoms · CPC title

• C09C3/063

  Coating · CPC title

• C01P2006/90

  Other properties not specified above · CPC title

• C08J5/18

  Manufacture of films or sheets · CPC title