# US 2026/0286164 A1 · Coating composition for a wiper blade of a windscreen wiper > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0286164 A1 - Document ID: US20260286164A1 - Status: Published application - Kind: A1 - Application number: 19/469,820 - Filed: 2024-03-29 - Published: 2026-09-24 - Earliest claimed: 2023-03-29 - Assignees: Valeo Systèmes d'Essuyage - Applicants: Valeo Systèmes d'Essuyage - Inventors: Amélie Noel; Lucie Brossard - Web page: https://patentgrep.com/patent/US20260286164A1 ## CPC - C09D 5/024: {characterised by the additives} - C09D 133/02: Homopolymers or copolymers of acids; Metal or ammonium salts thereof - C09D 7/43: Thickening agents - C09D 7/48: Stabilisers against degradation by oxygen, light or heat - C09D 7/61: inorganic - C09D 7/65: macromolecular (C09D7/41-C09D7/48 take precedence) - C09D 7/70: {characterised by shape, e.g. fibres, flakes or microspheres} - C09D 133/08: Homopolymers or copolymers of acrylic acid esters - B60S 2001/3829: {characterised by the material of the squeegee or coating thereof} - C08K 3/04: Carbon - C08K 3/042: {Graphene or derivatives, e.g. graphene oxides} - C08K 2003/3009: {Sulfides} - 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) - B60S: SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract Described is a coating composition for a wiper blade of a windscreen wiper. The composition is an aqueous phase composition including a resin and from 30 to 60% by weight of a solid lubricant in dispersion. The composition further includes 0.1 to 2% by weight of graphene. Also described is a method for preparing the composition, use of the composition, and a wiper blade coated with the composition. ## Claims ### Claim 1 A coating composition for a wiper blade of a windshield wiper, the composition being an aqueous-phase composition comprising: at least one resin; 30% to 60% by weight of a dispersion comprising at least one solid lubricant; and the 0.1% to 2% by weight of graphene, wherein the at least one solid lubricant is different from graphene, and wherein weight percentages are relative to a total weight of the composition. ### Claim 2 (depends on 1) The coating composition as claimed in claim 1, comprising 5% to 25% by weight of the at least one solid lubricant. ### Claim 3 (depends on 1) The coating composition as claimed in claim 1, wherein the at least one solid lubricant is selected from graphite particles and molybdenum disulfide particles. ### Claim 4 (depends on 1) The composition as claimed in claim 1, wherein the at least one resin is an acrylic, vinyl, styrenic, and/or urethane polymer, in aqueous phase. ### Claim 5 (depends on 1) The coating composition as claimed in claim 1, comprising 10% to 25% by weight of resin emulsion or dispersion relative to the total weight of the composition. ### Claim 6 (depends on 1) The coating composition as claimed in claim 1, further comprising at least one additive selected from thickening agents, spreading agents, dispersing agents, antifoam agents, and UV protection agents. ### Claim 7 (depends on 1) The coating composition as claimed in claim 1, further comprising polymer microbeads. ### Claim 8 (depends on 1) The coating composition as claimed in claim 1, comprising 0.2% to 0.6% by weight of graphene. ### Claim 9 (depends on 1) A process for preparing a coating composition as claimed in claim 1 comprising: a) preparing the dispersion of the at least one solid lubricant in aqueous phase; b) introducing graphene particles into the dispersion obtained in step a, in order to obtain a dispersion of the particles and the at least one solid lubricant; and c) adding at least one resin in aqueous phase to the dispersion obtained in step b. ### Claim 10 (depends on 9) The process as claimed in claim 9, wherein in step b), the graphene is introduced in the form of a suspension in aqueous medium. ### Claim 11 (depends on 9) The process as claimed in claim 9, further comprising adding at least one additive and/or a solvent after step c. ### Claim 12 (depends on 1) A use of the composition as claimed in claim 1, for at least partially coating a wiper blade for a windshield wiper. ### Claim 13 (depends on 1) A wiper blade for a windshield wiper, the wiper blade being at least partially coated with a composition as claimed in claim 1.