# US 10,370,514 B2 · UV-resistant superhydrophobic coating compositions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,514 B2 - Document ID: US10370514B2 - Status: Granted - Kind: B2 - Application number: 14/745,384 - Filed: 2015-06-20 - Published: 2015-12-24 - Granted: 2019-08-06 - Earliest claimed: 2014-06-23 - Assignees: Southwire Company - Applicants: Southwire Company, LLC - Inventors: Yuhsin Hawig - Web page: https://patentgrep.com/patent/US10370514B2 ## CPC - C08K 3/30: Sulfur-, selenium- or tellurium-containing compounds - C08K 3/22: of metals - C08K 3/36: Silica - C09D 127/12: containing fluorine atoms - C09D 127/18: Homopolymers or copolymers of tetrafluoroethene - C09D 163/00: Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins - H01B 1/023: {Alloys based on aluminium} - H01B 1/026: {Alloys based on copper} - H01B 3/308: {Wires with resins} - H01B 3/40: epoxy resins - H01B 3/445: {from vinylfluorides or other fluoroethylenic compounds} - C08K 9/06: with silicon-containing compounds - C08K 2003/2296: {of zinc} - C08K 2003/3009: {Sulfides} - C08L 2205/025: containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure - C08L 2205/03: containing three or more polymers in a blend - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - 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}) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract A coating composition for a substrate includes a polymer binder, one or more hydrophobic silicon dioxide compositions, and one or more UV protection agents. The polymer binder can include a fluoropolymer or an epoxy polymer resin. The coating composition can also include molybdenum disulfide. ## Claims ### Claim 1 A coating composition for a substrate, the coating composition comprising: a polymer binder comprising a fluoropolymer or an epoxy polymer resin; one or more hydrophobic silicon dioxide compositions; molybdenum disulfide; and one or more UV protection agents; wherein the coating composition includes at least about 50% by weight of the polymer binder, from about 0.5% to about 15% by weight of one or more hydrophobic silicon dioxide compositions, from about 0.1% to about 15% by weight of molybdenum disulfide, and from about 0.1% to about 10% by weight of one or more UV protection agents. ### Claim 2 (depends on 1) The coating composition of claim 1, wherein the polymer binder has a glass transition temperature or a melting point in a range from 75° C. to 350° C. ### Claim 3 (depends on 1) The coating composition of claim 1, wherein the binder comprises at least one fluoropolymer selected from the group consisting of polytetrafluoroethylene (PTFE), polyvinylidene difluoride (PVDF), and polyhexafluoropropylene (PHFP). ### Claim 4 (depends on 1) The coating composition of claim 1, wherein the binder comprises at least one epoxy polymer resin having a viscosity at a temperature from about 20° C. to about 27° C. and prior to initiation of curing in the range from 1 centipoise to 25,000 centipoise. ### Claim 5 (depends on 1) The coating composition of claim 1, wherein at least one of the UV protection agents comprises zinc oxide. ### Claim 6 (depends on 1) The coating composition of claim 1, wherein each of the one or more hydrophobic silicon dioxide compositions comprises at least one functional group selected from the group consisting of alkyl, alkoxy, silyl, alkoxysilyl and siloxy. ### Claim 7 (depends on 1) A conductor coated with the coating composition of claim 1. ### Claim 8 (depends on 1) A conductor comprising a plurality of stranded wires, wherein at least one stranded wire is coated with the coating composition of claim 1. ### Claim 9 (depends on 1) The coating composition of claim 1, wherein a contact angle of a water droplet formed on the coating composition is at least 140° after exposure of the coating composition to UV radiation of at least about 1 W/m2 for a time period of at least about 150 hours. ### Claim 10 (depends on 6) The coating composition of claim 6, wherein each of the one or more functional groups is selected from the group consisting of methyl chlorosilanes, hexamethyldisilazane (HMDS), polydimethylsiloxane (PDMS), octylsilane, hexadecylsilane, methacrylsilane, dimethyldichlorosilane (DDS), and octamethylcyclotetrasiloxane. ### Claim 11 (depends on 7) The conductor of claim 7, wherein the conductor comprises a bare overhead conductor. ### Claim 12 (depends on 7) The conductor of claim 7, wherein an exterior surface of the conductor is coated with the coating composition at a thickness from about 0.00001 inch to about 0.030 inch. ### Claim 13 (depends on 7) The conductor of claim 7, wherein the conductor is a grounding bare wire. ### Claim 14 (depends on 7) The conductor of claim 7, wherein the conductor comprises a solid conductor material comprising copper, aluminum or aluminum alloy. ### Claim 15 (depends on 9) The coating composition of claim 9, wherein the contact angle of a water droplet formed on the coating composition is at least 140° after exposure of the coating composition to UV radiation of at least about 1 W/m2 for a time period of at least about 470 hours. ### Claim 16 (depends on 11) The conductor of claim 11, wherein the conductor comprises aluminum, steel or a carbon fiber polymer composite material.