# US 11,078,369 B2 · Corrosion-resistance improved powder paint for aluminum wheels > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,078,369 B2 - Document ID: US11078369B2 - Status: Granted - Kind: B2 - Application number: 16/408,081 - Filed: 2019-05-09 - Published: 2020-06-04 - Granted: 2021-08-03 - Earliest claimed: 2018-12-03 - Assignees: Hyundai Motor Company; Kia Motors Corporation - Applicants: Hyundai Motor Company; Kia Motors Corporation - Inventors: Ji-Won Yang - Web page: https://patentgrep.com/patent/US11078369B2 ## CPC - C09D 5/033: {characterised by the additives} - C09D 5/08: Anti-corrosive paints - C08K 5/098: Metal salts of carboxylic acids - C09D 5/03: Powdery paints - C09D 5/086: {Organic or non-macromolecular compounds} - C09D 7/48: Stabilisers against degradation by oxygen, light or heat - C09D 7/63: organic - C09D 133/10: Homopolymers or copolymers of methacrylic acid esters - C08K 5/005: {Stabilisers against oxidation, heat, light, ozone} - C08K 5/092: Polycarboxylic acids - C08K 5/1515: Three-membered rings - C08K 2201/014: Additives containing two or more different additives of the same subgroup in C08K - C08L 33/08: Homopolymers or copolymers of acrylic acid esters - C08L 33/10: Homopolymers or copolymers of methacrylic acid esters - 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) - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract The present invention relates to a powder paint for aluminum wheels, and more particularly, to a curing agent. The corrosion-resistance improved powder paint for aluminum wheels, which is the present invention, includes 70 to 80 wt % of an acrylic resin, 8 to 12 wt % of dodecanedioic acid, and 3 to 10 wt % of sebacic acid, and the corrosion resistance of the powder paint is improved according to the composition of the present invention, so that it is possible to reduce occurrence and diffusion of corrosion on corner pails. ## Claims ### Claim 1 A corrosion-resistance powder paint for aluminum wheels, the corrosion-resistance powder paint comprising 70 to 80 wt % of an acrylic resin, 8 to 12 wt % of dodecanedioic acid, 3 to 10 wt % of sebacic acid, and 2 to 5 wt % of 2,3-epoxypropyl methacrylate. ### Claim 2 (depends on 1) The corrosion-resistance powder paint of claim 1, further comprising 1 to 5 wt % of a pinhole preventing agent. ### Claim 3 (depends on 2) The corrosion-resistance powder paint of claim 2, further comprising 0.5 to 2 wt % of a surface conditioning agent. ### Claim 4 (depends on 2) The corrosion-resistance powder paint of claim 2, further comprising 0.5 to 2 wt % of a light stabilizer. ### Claim 5 (depends on 1) The corrosion-resistance powder paint of claim 1, further comprising 0.5 to 2 wt % of a surface conditioning agent. ### Claim 6 (depends on 5) The corrosion-resistance powder paint of claim 5, further comprising 0.5 to 2 wt % of a light stabilizer. ### Claim 7 (depends on 1) The corrosion-resistance powder paint of claim 1, further comprising 0.5 to 2 wt % of a light stabilizer. ### Claim 8 (depends on 1) A method of manufacturing an aluminum wheel, the method comprising coating a wheel substrate using the corrosion-resistance powder paint of claim 1. ### Claim 9 A corrosion-resistance powder paint for aluminum wheels, the corrosion-resistance powder paint comprising: 70 to 80 wt % of an acrylic resin, 8 to 12 wt % of dodecanedioic acid, 3 to 10 wt % of sebacic acid, 2 to 5 wt % of 2,3-epoxypropyl methacrylate, 1 to 5 wt % of a pinhole preventing agent, 0.5 to 2 wt % of a surface conditioning agent, and 0.5 to 2 wt % of a light stabilizer. ### Claim 10 A corrosion-resistance powder paint for aluminum wheels, the corrosion-resistance powder paint comprising 70 to 80 wt % of an acrylic resin, 8 to 12 wt % of dodecanedioic acid, 6 to 10 wt % of sebacic acid, and 2 to 5 wt % of 2,3-epoxypropyl methacrylate. ### Claim 11 (depends on 10) The corrosion-resistance powder paint of claim 10, further comprising 1 to 5 wt % of a pinhole preventing agent. ### Claim 12 (depends on 11) The corrosion-resistance powder paint of claim 11, further comprising 0.5 to 2 wt % of a surface conditioning agent. ### Claim 13 (depends on 12) The corrosion-resistance powder paint of claim 12, further comprising 0.5 to 2 wt % of a light stabilizer. ### Claim 14 (depends on 10) The corrosion-resistance powder paint of claim 10, further comprising 0.5 to 2 wt % of a surface conditioning agent. ### Claim 15 (depends on 14) The corrosion-resistance powder paint of claim 14, further comprising 0.5 to 2 wt % of a light stabilizer. ### Claim 16 (depends on 10) The corrosion-resistance powder paint of claim 10, further comprising 0.5 to 2 wt % of a light stabilizer.