# US 10,121,717 B2 · Carbon-coated thermal conductive material > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,121,717 B2 - Document ID: US10121717B2 - Status: Granted - Kind: B2 - Application number: 15/470,021 - Filed: 2017-03-27 - Published: 2017-07-13 - Granted: 2018-11-06 - Earliest claimed: 2014-09-29 - Assignees: Sekisui Chemical Co., Ltd. - Applicants: Sekisui Chemical Co., Ltd. - Inventors: Ren-de Sun; Shoji Nozato; Akira Nakasuga; Masanori Nakamura - Web page: https://patentgrep.com/patent/US10121717B2 ## CPC - H10W 74/40: characterised by their materials - B32B 9/00: Layered products comprising a {layer of a} particular substance not covered by groups B32B11/00 - B32B29/00 - B32B 15/04: comprising metal as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a bituminous or tarry layer B32B11/08; next to a water-setting substance layer B32B13/06; next to a glass layer B32B17/061; next to a cellulosic plastic layer B32B23/042)} - C01B 21/072: with aluminium - C01B 21/0728: {After-treatment, e.g. grinding, purification} - C09K 5/14: Solid materials, e.g. powdery or granular - H10W 74/473: {containing a filler} - F28F 13/18: by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing - H10W 42/00: Arrangements for protection of devices (arrangements for thermal protection H10W40/00) - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C} - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) ## Abstract A carbon-coated thermal conductive material includes a coating layer comprising amorphous carbon on a surface of a thermal conductive material, wherein the thermal conductive material comprises a metal oxide, a metal nitride, a metal material, or a carbon-based material having a thermal conductivity of 10 W/mK or greater, the amorphous carbon is derived from carbon contained in an oxazine resin, a ratio of a peak intensity of a G band to a peak intensity of a D band is 1.0 or greater when the amorphous carbon is measured by Raman spectroscopy, an average film thickness of the coating layer is 500 nm or less, and a coefficient of variation (CV value) of a film thickness of the coating layer is 15% or less. ## Claims ### Claim 1 A carbon-coated thermal conductive material comprising: a thermal conductive material having a particle shape; and a coating layer comprising amorphous carbon on a surface of the thermal conductive material, wherein the thermal conductive material comprises at least one selected from the group consisting of a metal oxide, a metal nitride, a metal material, and a carbon-based material having a thermal conductivity of 10 W/mK or greater, the amorphous carbon is derived from carbon contained in an oxazine resin, a ratio of a peak intensity of a G band to a peak intensity of a D band is 1.0 or greater when the amorphous carbon is measured by Raman spectroscopy, an average film thickness of the coating layer is 500 nm or less, and a coefficient of variation (CV value) of a film thickness of the coating layer is 15% or less. ### Claim 2 (depends on 1) The carbon-coated thermal conductive material according to claim 1, wherein at least one of a mass spectrum resulting from a benzene ring and a mass spectrum resulting from a naphthalene ring is detected when the coating layer is measured by time-of-flight secondary ion mass spectrometry (TOF-SIMS). ### Claim 3 (depends on 1) The carbon-coated thermal conductive material according to claim 1, wherein no peak is detected at a position in which 20 equals 26.4° when the coating layer is measured by X-ray diffractometry. ### Claim 4 (depends on 1) The carbon-coated thermal conductive material according to claim 1, wherein the oxazine resin is a naphthoxazine resin. ### Claim 5 (depends on 2) The carbon-coated thermal conductive material according to claim 2, wherein the oxazine resin is a naphthoxazine resin. ### Claim 6 (depends on 1) The carbon-coated thermal conductive material according to claim 1, wherein the thermal conductive material comprises the metal oxide or the metal nitride, wherein the metal oxide is magnesium oxide (MgO), and wherein the metal nitride is aluminum nitride (AlN). ### Claim 7 (depends on 2) The carbon-coated thermal conductive material according to claim 2, wherein the thermal conductive material comprises the metal oxide or the metal nitride, wherein the metal oxide is magnesium oxide (MgO), and wherein the metal nitride is aluminum nitride (AlN). ### Claim 8 (depends on 3) The carbon-coated thermal conductive material according to claim 3, wherein the thermal conductive material comprises the metal oxide or the metal nitride, wherein the metal oxide is magnesium oxide (MgO), and wherein the metal nitride is aluminum nitride (AlN). ### Claim 9 (depends on 4) The carbon-coated thermal conductive material according to claim 4, wherein the thermal conductive material comprises the metal oxide or the metal nitride, wherein the metal oxide is magnesium oxide (MgO), and wherein the metal nitride is aluminum nitride (AlN). ### Claim 10 (depends on 5) The carbon-coated thermal conductive material according to claim 5, wherein the thermal conductive material comprises the metal oxide or the metal nitride, wherein the metal oxide is magnesium oxide (MgO), and wherein the metal nitride is aluminum nitride (AlN). ### Claim 11 (depends on 1) The carbon-coated thermal conductive material according to claim 1, wherein the thermal conductive material comprises the metal material, and wherein the metal material is at least one selected from the group consisting of copper (Cu), nickel (Ni), iron (Fe), and cobalt (Co). ### Claim 12 (depends on 2) The carbon-coated thermal conductive material according to claim 2, wherein the thermal conductive material comprises the metal material, and wherein the metal material is at least one selected from the group consisting of copper (Cu), nickel (Ni), iron (Fe), and cobalt (Co). ### Claim 13 (depends on 3) The carbon-coated thermal conductive material according to claim 3, wherein the thermal conductive material comprises the metal material, and wherein the metal material is at least one selected from the group consisting of copper (Cu), nickel (Ni), iron (Fe), and cobalt (Co). ### Claim 14 (depends on 4) The carbon-coated thermal conductive material according to claim 4, wherein the thermal conductive material comprises the metal material, and wherein the metal material is at least one selected from the group consisting of copper (Cu), nickel (Ni), iron (Fe), and cobalt (Co). ### Claim 15 (depends on 5) The carbon-coated thermal conductive material according to claim 5, wherein the thermal conductive material comprises the metal material, and wherein the metal material is at least one selected from the group consisting of copper (Cu), nickel (Ni), iron (Fe), and cobalt (Co).