# US 2018/0022958 A1 · Hard coating composition, and hard coating film and coated article using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0022958 A1 - Document ID: US20180022958A1 - Status: Published application - Kind: A1 - Application number: 15/487,622 - Filed: 2017-04-14 - Published: 2018-01-25 - Earliest claimed: 2016-07-22 - Assignees: Hon Hai Precision Industry Co., Ltd. - Applicants: Hon Hai Precision Industry Co., Ltd. - Inventors: HSIU-WEN CHIEN - Web page: https://patentgrep.com/patent/US20180022958A1 ## CPC - C09D 187/00: Coating compositions based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds - C09D 165/00: Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain (C09D107/00 - C09D157/00, C09D161/00 take precedence); Coating compositions based on derivatives of such polymers - C08G 2261/135: Cross-linked structures - C08G 2261/3221: containing one or more nitrogen atoms as the only heteroatom, e.g. pyrrole, pyridine or triazole - C08G 2261/43: Chemical oxidative coupling reactions, e.g. with FeCl3 - C08G 2261/76: crosslinking - C08K 3/08: Metals - C08K 3/22: of metals - C08K 3/36: Silica - C08K 5/17: Amines; Quaternary ammonium compounds - C08K 2003/0881: {Titanium} - C08K 2003/2227: {of aluminium} - C08K 2003/2237: {of titanium} - C08K 2003/2244: {of zirconium} - C08K 2201/003: Additives being defined by their diameter - 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) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract A hard coating composition comprises a dopamine, a plurality of inorganic oxide particles, and a solvent. The dopamine reduces the film forming time of an anti-fogging coating. A hard coating film using the hard coating composition, and a coated article using the hard coating film are also provided. ## Claims ### Claim 1 A hard coating composition comprising: a dopamine; a plurality of inorganic oxide particles; and a solvent. ### Claim 2 (depends on 1) The hard coating composition of claim 1, wherein the dopamine has a mass percentage of about 1% to about 40% of a total mass of the hard coating composition, the plurality of the inorganic oxide particles has a mass percentage of about 40% to about 80% of the total mass of the hard coating composition, the solvent has a mass percentage of about 5% to about 50% of the total mass of the hard coating composition. ### Claim 3 (depends on 1) The hard coating composition of claim 1, wherein the hard coating composition has a PH value of about 8.0 to about 10.5. ### Claim 4 (depends on 1) The hard coating composition of claim 1, wherein the plurality of inorganic oxide particles is selected from particles of silica, zirconia, alumina, titanium, or any combination thereof. ### Claim 5 (depends on 1) The hard coating composition of claim 1, wherein a particle diameter of the inorganic oxide particle is about 1 nm to about 1000 nm. ### Claim 6 (depends on 1) The hard coating composition of claim 1, wherein the solvent is water, an alcohol aqueous solution, or an oxidizing aqueous solution. ### Claim 7 (depends on 6) The hard coating composition of claim 6, wherein the alcohol aqueous solution is a methanol aqueous solution, an ethanol aqueous solution, or a propanol aqueous solution, and the oxidizing aqueous solution is sodium periodate aqueous solution. ### Claim 8 A hard coating film formed from: a hard coating composition, the hard coating composition comprising: a dopamine; a plurality of inorganic oxide particles; and a solvent. ### Claim 9 (depends on 8) The hard coating film of claim 8, wherein the dopamine has a mass percentage of about 1% to about 40% of a total mass of the hard coating composition, the plurality of the inorganic oxide particles has a mass percentage of about 40% to about 80% of the total mass of the hard coating composition, the solvent has a mass percentage of about 5% to about 50% of the total mass of the hard coating composition. ### Claim 10 (depends on 8) The hard coating film of claim 8, wherein the hard coating composition has a PH value of about 8.0 to about 10.5. ### Claim 11 (depends on 8) The hard coating film of claim 8, wherein the plurality of inorganic oxide particles is selected from particles of silica, zirconia, alumina, titanium, or any combination thereof. ### Claim 12 (depends on 8) The hard coating film of claim 8, wherein a particle diameter of the inorganic oxide particle is about 1 nm to about 1000 nm. ### Claim 13 (depends on 8) The hard coating film of claim 8, wherein the solvent is water, an alcohol aqueous solution, or an oxidizing aqueous solution. ### Claim 14 (depends on 13) The hard coating film of claim 13, wherein the alcohol aqueous solution is a methanol aqueous solution, an ethanol aqueous solution, or a propanol aqueous solution, and the oxidizing aqueous solution is sodium periodate aqueous solution. ### Claim 15 A coated article comprising: a substrate; and a hard coating film attached to at least one surface of the substrate, the hard coating film is formed from a hard coating composition, the hard coating composition comprising: a dopamine; a plurality of inorganic oxide particles; and a solvent. ### Claim 16 (depends on 15) The coated article of claim 15, wherein the dopamine has a mass percentage of about 1% to about 40% of a total mass of the hard coating composition, the plurality of the inorganic oxide particles has a mass percentage of about 40% to about 80% of the total mass of the hard coating composition, the solvent has a mass percentage of about 5% to about 50% of the total mass of the hard coating composition. ### Claim 17 (depends on 15) The coated article of claim 15, wherein the hard coating composition has a PH value of about 8.0 to about 10.5. ### Claim 18 (depends on 15) The coated article of claim 15, wherein the plurality of inorganic oxide particles is selected from particles of silica, zirconia, alumina, titanium, or any combination thereof. ### Claim 19 (depends on 15) The coated article of claim 15, wherein a particle diameter of the inorganic oxide particle is about 1 nm to about 1000 nm. ### Claim 20 (depends on 15) The coated article of claim 15, wherein the solvent is water, an alcohol aqueous solution, or an oxidizing aqueous solution, the alcohol aqueous solution is a methanol aqueous solution, an ethanol aqueous solution, or a propanol aqueous solution, and the oxidizing aqueous solution is sodium periodate aqueous solution.