# US 7,745,355 B2 · Inductively heatable components > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,745,355 B2 - Document ID: US7745355B2 - Status: Granted - Kind: B2 - Application number: 11/948,820 - Filed: 2007-11-30 - Published: 2008-05-29 - Granted: 2010-06-29 - Earliest claimed: 2003-12-08 - Assignees: Saint-Gobain Performance Plastics Corporation - Inventors: Peter Dwight Spohn; Richard George Hoeck; Satish S. Sharma - Web page: https://patentgrep.com/patent/US7745355B2 ## CPC - B32B 27/20: using fillers, pigments, thixotroping agents - B32B 25/08: of synthetic resin - B32B 25/20: comprising silicone rubber - B32B 27/281: {comprising polyimides} - B32B 27/322: {comprising halogenated polyolefins, e.g. PTFE} - H05B 6/106: {in the form of fillings} - B32B 2260/021: Fibrous or filamentary layer - B32B 2264/10: Inorganic particles - B32B 2413/00: Belts - H05B 2206/023: using the curie point of the material in which heating current is being generated to control the heating temperature - Y10S 99/14: Induction heating - Y10T 428/3154: Of fluorinated addition polymer from unsaturated monomers - Y10T 442/3854: Woven fabric with a preformed polymeric film or sheet - Y10T 442/3878: Fluorinated olefin polymer or copolymer sheet or film [e.g., Teflon@, etc.] - Y10T 442/3976: Including strand which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous composition, water solubility, heat shrinkability, etc.] - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Aspects of the invention are found in a heating component having a composite material coated on a support. The composite material includes a fluorinated or silicone polymer and inductively-heatable particles. Additional aspects of the invention are found in a heating belt having a flexible support coated with a composite material. The composite material includes a polymer material and inductively-heatable particles. Further aspects of the invention are found in a system for heating an article. The system includes a heating belt and a field generator. The heating belt includes a flexible support coated in a composite material. The composite material includes a polymeric matrix and inductively-heatable particles. The field generator induces a field about the heating belt. The inductively-heatable particles heat in the presence of the field. ## Claims ### Claim 1 A heating component comprising: an insulating material; and a composite material coating the insulating material, the composite material comprising a fluorinated polymer and inductively-heatable particles. ### Claim 2 (depends on 1) The heating component of claim 1, wherein the fluorinated polymer is selected from the group consisting of polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), perfluoroalkoxy (PFA), tetrafluoroethylene (TFE), hexafluoropropylene (HFP), or perfluoropropyl or perfluoromethyl vinyl ether, homo and copolymers having chlorotrifluoroethylene (CTFE), homo and copolymers having vinylidene fluoride (VF2), homo and copolymers having vinyl fluoride (VF), and combinations thereof. ### Claim 3 (depends on 1) The heating component of claim 1, wherein the fluorinated polymer comprises polytetrafluoroethylene (PTFE). ### Claim 4 (depends on 3) The heating component of claim 3, wherein the fluorinated polymer comprises blends of polytetrafluoroethylene (PTFE) with polymeric modifiers selected from the group consisting of copolymers having tetrafluoroethylene (TFE), hexafluoropropylene (HFP), or perfluoropropyl or perfluoromethyl vinyl ether, homo and copolymers having chlorotrifluoroethylene (CTFE), homo and copolymers having vinylidene fluoride (VF2), homo and copolymers having vinyl fluoride (VF), and combinations thereof. ### Claim 5 (depends on 1) The heating component of claim 1, wherein the fluorinated polymer comprises fluorinated ethylene propylene (FEP). ### Claim 6 (depends on 1) The heating component of claim 1, wherein the fluorinated polymer comprises perfluoroalkoxy (PFA). ### Claim 7 (depends on 1) The heating component of claim 1, wherein the inductively-heatable particles comprise between about 10 volume percent and about 50 volume percent of the composite material. ### Claim 8 (depends on 1) The heating component of claim 1, wherein the heating component is a generally planar sheet defining a cooking surface. ### Claim 9 A heating component comprising: a first layer comprising a fluoropolymer and inductively-heatable particles dispersed in the fluoropolymer; and a second layer overlying and adhered to the first layer, the second layer comprising a silicone polymer. ### Claim 10 (depends on 9) The heating component of claim 9, further comprising an insulation layer, the first layer overlying the insulation layer. ### Claim 11 (depends on 10) The heating component of claim 10, wherein the insulation layer includes fiberglass. ### Claim 12 (depends on 9) The heating component of claim 9, further comprising a flexible support comprising a fabric. ### Claim 13 (depends on 12) The heating component of claim 12, wherein the fabric is a woven fabric. ### Claim 14 (depends on 12) The heating component of claim 12, wherein the fabric is a textile based on a thermally stable reinforcement selected from the group consisting of fiberglass, graphite, and polyaramide. ### Claim 15 (depends on 12) The heating component of claim 12, wherein the heating component forms a closed loop belt. ### Claim 16 (depends on 15) The heating component of claim 15, wherein the second layer forms an inwardly facing layer of the closed loop belt. ### Claim 17 (depends on 9) The heating component of claim 9, wherein the fluorinated polymer is selected from the group consisting of polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), perfluoroalkoxy (PFA), tetrafluoroethylene (TFE), hexafluoropropylene (HFP), or perfluoropropyl or perfluoromethyl vinyl ether, homo and copolymers having chlorotrifluoroethylene (CTFE), homo and copolymers having vinylidene fluoride (VF2), homo and copolymers having vinyl fluoride (VF), and combinations thereof. ### Claim 18 (depends on 9) The heating component of claim 9, wherein the fluorinated polymer comprises polytetrafluoroethylene (PTFE). ### Claim 19 (depends on 18) The heating component of claim 18, wherein the fluorinated polymer comprises blends of polytetrafluoroethylene (PTFE) with polymeric modifiers selected from the group consisting of a copolymer of tetrafluoroethylene (TFE), hexafluoropropylene (HFP), or perfluoropropyl or perfluoromethyl vinyl ether, homo and copolymers having chlorotrifluoroethylene (CTFE), homo and copolymers having vinylidene fluoride (VF2), homo and copolymers having vinyl fluoride (VF), and combinations thereof. ### Claim 20 (depends on 9) The heating component of claim 9, wherein the fluorinated polymer comprises fluorinated ethylene propylene (FEP). ### Claim 21 (depends on 9) The heating component of claim 9, wherein the fluorinated polymer comprises perfluoroalkoxy (PFA). ### Claim 22 (depends on 9) The heating component of claim 9, wherein the inductively-heatable particles comprise between about 10 volume percent and about 50 volume percent of the first layer. ### Claim 23 A heating belt comprising: a flexible support having first and second major surfaces; a first layer disposed over the first major surface of the flexible support, the first layer comprising a fluoropolymer and inductively heatable particles dispersed in the fluoropolymer; and a second layer disposed over the second major surface of the flexible support, the second layer comprising silicone. ### Claim 24 (depends on 23) The heating belt of claim 23, wherein the heating belt forms a closed loop. ### Claim 25 (depends on 23) The heating belt of claim 23, wherein the flexible support comprises a fabric. ### Claim 26 (depends on 25) The heating belt of claim 25, wherein the fabric is a woven fabric. ### Claim 27 (depends on 23) The heating belt of claim 23, wherein the fluoropolymer comprises PTFE. ### Claim 28 (depends on 23) The heating belt of claim 23, further comprising a third layer disposed on an opposite surface of the first layer relative to the flexible support. ### Claim 29 (depends on 28) The heating belt of claim 28, wherein the third layer comprises silicone.