# US 10,117,459 B2 · Aerosol generating article including a heat-conducting element and a surface treatment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,117,459 B2 - Document ID: US10117459B2 - Status: Granted - Kind: B2 - Application number: 15/544,724 - Filed: 2016-12-22 - Published: 2018-01-11 - Granted: 2018-11-06 - Earliest claimed: 2015-12-31 - Assignees: Philip Morris Products S.A. - Applicants: Philip Morris Products S.A. - Inventors: Frederic Lavanchy; Alexandre Malgat - Web page: https://patentgrep.com/patent/US10117459B2 ## CPC - A24D 1/02: with special covers - A24D 1/22: Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources - A24F 40/40: Constructional details, e.g. connection of cartridges and battery parts - A24F 42/10: Devices with chemical heating means - A24F 42/60: Constructional details - A24C 5/00: Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes - A24D: CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - A24C: MACHINES FOR MAKING CIGARS OR CIGARETTES ## Abstract There is provided an aerosol-generating article including a combustible heat source; an aerosol-forming substrate disposed in thermal communication with the combustible heat source; and a heat-conducting component disposed around at least a portion of the aerosol-forming substrate, the heat-conducting component including an outer surface forming at least part of an outer surface of the aerosol-generating article, wherein at least a portion of the outer surface of the heat-conducting component includes a surface coating and has an emissivity of less than about 0.6. A method of manufacturing the aerosol-generating article is also provided. ## Claims ### Claim 1 An aerosol-generating article, comprising: a combustible heat source; an aerosol-forming substrate disposed in thermal communication with the combustible heat source; and a heat-conducting component disposed around at least a portion of the aerosol-forming substrate, the heat-conducting component comprising an outer surface forming at least part of an outer surface of the aerosol-generating article, wherein at least a portion of the outer surface of the heat-conducting component comprises a surface coating and has an emissivity of less than about 0.6. ### Claim 2 (depends on 1) The aerosol-generating article according to claim 1, wherein the emissivity of the outer surface of the heat-conducting component is less than about 0.5. ### Claim 3 (depends on 1) The aerosol-generating article according to claim 1, wherein the emissivity of the outer surface of the heat-conducting component is greater than about 0.1. ### Claim 4 (depends on 1) The aerosol-generating article according to claim 1, wherein the surface coating comprises a filler material comprising one or more materials selected from graphite, metal oxides, and metal carbonates. ### Claim 5 (depends on 1) The aerosol-generating article according to claim 1, wherein the surface coating is discontinuous. ### Claim 6 (depends on 1) The aerosol-generating article according to claim 1, wherein the heat conducting component further comprises a first heat-conducting element disposed around and in contact with a downstream portion of the combustible heat source and an adjacent upstream portion of the aerosol-forming substrate, and a second heat-conducting element disposed around at least a portion of the first heat-conducting element and comprising an outer surface forming at least part of the outer surface of the aerosol-generating article. ### Claim 7 (depends on 6) The aerosol-generating article according to claim 6, wherein the second heat-conducting element is radially separated from the first heat-conducting element by at least one layer of a heat-insulating material extending around at least a portion of the first heat-conducting element between the first and second heat-conducting elements. ### Claim 8 (depends on 1) The aerosol-generating article according to claim 1, wherein at least a portion of the outer surface of the heat-conducting component comprises a surface treatment, and wherein the surface treatment comprises at least one of embossing, debossing, and combinations thereof. ### Claim 9 (depends on 1) The aerosol-generating article according to claim 1, wherein the surface coating comprises at least one pigment. ### Claim 10 (depends on 1) The aerosol-generating article according to claim 1, wherein the surface coating comprises a translucent material. ### Claim 11 (depends on 1) The aerosol-generating article according to claim 1, wherein the surface coating comprises at least one of metal particles, metal flakes, or both the metal particles and the metal flakes. ### Claim 12 (depends on 1) The aerosol-generating article according to claim 1, wherein the heat-conducting component comprises a metal foil. ### Claim 13 A method of manufacturing an aerosol-generating article comprising a combustible heat source, an aerosol-forming substrate disposed in thermal communication with the combustible heat source, and a heat-conducting component disposed around at least a portion of the aerosol-forming substrate, the heat-conducting component comprising an outer surface forming at least part of an outer surface of the aerosol-generating article, the method comprising applying a coating composition to at least a portion of the outer surface of the heat-conducting component such that a coated portion of the heat-conducting component has an emissivity of less than about 0.6. ### Claim 14 (depends on 13) The method according to claim 13, wherein the coating composition includes a filler material, a binder, and a solvent. ### Claim 15 (depends on 14) The method according to claim 14, wherein the filler material comprises one or more materials selected from graphite, metal oxides, and metal carbonates.