# US 2014/0190958 A1 · Method for coating an insulation component and insulation component > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190958 A1 - Document ID: US20140190958A1 - Status: Published application - Kind: A1 - Application number: 14/237,269 - Filed: 2012-07-19 - Published: 2014-07-10 - Earliest claimed: 2011-08-08 - Assignees: Siemens Aktiengesellschaft - Inventors: Andreas Koch; Eberhard Lenz - Web page: https://patentgrep.com/patent/US20140190958A1 ## CPC - H01B 19/04: Treating the surfaces, e.g. applying coatings - B05D 1/36: Successively applying liquids or other fluent materials, e.g. without intermediate treatment - B05D 3/0254: {After-treatment} - B05D 3/144: {of polymeric substrates} - C23C 18/04: Pretreatment of the material to be coated (C23C18/06 takes precedence) - C23C 18/1208: {Oxides, e.g. ceramics} - C23C 18/1212: {Zeolites, glasses} - C23C 18/1216: {Metal oxides (C23C18/1212 takes precedence)} - C23C 18/1225: {Deposition of multilayers of inorganic material} - C23C 18/1233: {Organic substrates} - C23C 18/1254: {Sol or sol-gel processing} - H01B 3/427: {Polyethers} - H01B 7/292: {using material resistant to heat} - H05B 3/18: the conductor being embedded in an insulating material - H01B 13/22: Sheathing; Armouring; Screening; Applying other protective layers (H01B13/32 takes precedence) - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04) - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract The invention relates to a method for coating an insulation component (10), having PEEK, for insulating an electrically conductive heating cable (100) comprising the following steps: 1.) at least sectionally treating the surface of the insulation component (10) with at least one cold plasma flame, and 2.) applying at least one protective layer (20) to the treated surface of the insulation component (10). ## Claims ### Claim at position 1 1-15. (canceled) ### Claim 16 A method for coating an insulation component, comprising PEEK (polyether ether ketone), for the insulation of an electrically conductive heating cable, comprising: treating at least portions of the surface of the insulation component with a cold plasma flame; and applying a protective layer to the treated surface of the insulation component. ### Claim 17 (depends on 16) The method as claimed in claim 16, wherein the protective layer is applied as a sol-gel layer by a sol-gel method. ### Claim 18 (depends on 17) The method as claimed in claim 17, wherein a main component of the sol-gel solution after drying thereof is SiO2 or TiO2. ### Claim 19 (depends on 16) The method as claimed in claim 16, wherein the protective layer is applied in such a way that a layer thickness of at least 2 μm is achieved. ### Claim 20 (depends on 16) The method as claimed in claim 16, wherein applying the protective layer is carried out at least twice so that the layer thickness of the protective layer increases. ### Claim 21 (depends on 16) The method as claimed in claim 16, wherein after the application of the protective layer, there follows a drying step for the protective layer, which is carried out at a temperature above room temperature. ### Claim 22 (depends on 16) The method as claimed in claim 16, where the drying step for the protective layer is carried out at between 100° C. and 200° C. ### Claim 23 (depends on 16) The method as claimed in claim 16, wherein the protective layer is applied as an adhesive directly on the surface of the insulation component. ### Claim 24 (depends on 23) The method as claimed in claim 23, wherein after the application of the protective layer in the form of the adhesive, a curing step is carried out in such a way that the adhesive becomes dimensionally stable without already curing completely. ### Claim 25 (depends on 16) The method as claimed in claim 16, wherein the coating of an insulation component includes a hollow-cylindrical form. ### Claim 26 (depends on 25) The method as claimed in claim 25, wherein the hollow-cylindrical form includes a first length that is less than a second length of the electrical heating cable. ### Claim 27 (depends on 16) The method as claimed in claim 16, wherein the fitting on the electrical heating cable is carried out after the treatment of the surface of the insulation component with a cold plasma flame and before the application of the protective layer to the treated surface of the insulation component. ### Claim 28 (depends on 16) The method as claimed in claim 16, wherein the treatment of the surface and the application of the protective layer is carried out around the insulation component. ### Claim 29 (depends on 16) The method as claimed in claim 16, the treatment of the surface of the insulation component with a cold plasma flame is carried out with a ring surrounding the insulation component. ### Claim 30 (depends on 16) The method as claimed in claim 16, wherein at least two protective layers, in particular all of the protective layers, consist of the same material. ### Claim 31 An insulation component for the insulation of an electrically conductive heating cable, comprising: PEEK (polyether ether ketone), wherein at least portions of the surface of the insulation component are provided with a protective layer. ### Claim 32 (depends on 16, 31) The insulation component as claimed in claim 31, wherein the protective layer is produced by the method according to claim 16. ### Claim 33 (depends on 31) An electrically conductive heating cable, insulated by an insulation component according to claim 31.