# US 2013/0156972 A1 · Lustrous electromagnetic wave transmissive coating film, electromagnetic wave transmissive coating material composition for forming this film, and method of forming electromagnetic wave transmissive coating film therewith > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0156972 A1 - Document ID: US20130156972A1 - Status: Published application - Kind: A1 - Application number: 13/818,828 - Filed: 2011-08-26 - Published: 2013-06-20 - Earliest claimed: 2010-08-27 - Assignees: Toyota Jidosha Kabushiki Kaisha - Inventors: Hiroshi Yanagimoto; Tsuyoshi Imamura; Hideo Ishibashi; Ayako Iwakoshi - Web page: https://patentgrep.com/patent/US20130156972A1 ## CPC - C09D 133/04: Homopolymers or copolymers of esters {(C09D143/04 takes precedence)} - C08F 26/06: by a heterocyclic ring containing nitrogen - C09D 143/02: Homopolymers or copolymers of monomers containing phosphorus - 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) - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS ## Abstract A lustrous electromagnetic wave transmissive coating film includes: metal nano-particles containing one or more kinds of metals; and a first resin containing an oxazoline group and, a second resin containing a carboxyl group, in the resin component the carboxyl group derived from the second resin being present in a molar ratio of 0.03 to 50 times the oxazoline group derived from the first resin; wherein the resin component is soluble in ethanol, or, when water is added to a diethylene glycol diethyl ether solution obtained by dissolving 0.5 g of the resin component in 10 ml of diethylene glycol diethyl ether, an addition amount of the water until the diethylene glycol diethyl ether solution becomes turbid is 1.5 ml or more. ## Claims ### Claim at position 1 -19. (canceled) ### Claim 20 A lustrous electromagnetic wave transmissive coating film comprising: dispersed metal nano-particles containing one or more kinds of metals; and a resin component that contains a first resin containing an oxazoline group and, a second resin containing a carboxyl group, in the resin component the carboxyl group derived from the second resin being present in a molar ratio of 0.7 to 50 times the oxazoline group derived from the first resin, wherein the resin component is soluble in ethanol, or, when water is added to a diethylene glycol diethyl ether solution obtained by dissolving 0.5 g of the resin component in 10 ml of diethylene glycol diethyl ether, an addition amount of the water until the diethylene glycol diethyl ether solution becomes turbid is 1.5 ml or more. ### Claim 21 (depends on 20) The lustrous electromagnetic wave transmissive coating film according to claim 20, wherein the carboxyl group derived from the second resin of the resin component is present in a molar ratio of 0.7 to 1.5 times the oxazoline group derived from the first resin. ### Claim 22 (depends on 20) The lustrous electromagnetic wave transmissive coating film according to claim 20, wherein the addition amount of the water is 1.5 ml or more and 10 ml or less. ### Claim 23 (depends on 20) The lustrous electromagnetic wave transmissive coating film according to claim 20, wherein the metal is silver or gold. ### Claim 24 (depends on 20) The lustrous electromagnetic wave transmissive coating film according to claim 20, wherein the first resin contains 5 mmol/g-solid or more of the oxazoline group. ### Claim 25 (depends on 22) The lustrous electromagnetic wave transmissive coating film according to claim 22, wherein the first resin contains 5 mmol/g-solid or more and 10.3 mmol/g-solid or less of the oxazoline group. ### Claim 26 A method of forming a lustrous electromagnetic wave transmissive coating film comprising: coating a substrate with an electromagnetic wave transmissive coating material composition containing dispersed metal nano-particles containing one or more kinds of metals, a resin component, and a solvent, wherein the resin component is soluble in ethanol, or, when water is added to a diethylene glycol diethyl ether solution obtained by dissolving 0.5 g of the resin component in 10 ml of diethylene glycol diethyl ether, an addition amount of the water until the diethylene glycol diethyl ether solution becomes turbid is 1.5 ml or more, and a first resin containing an oxazoline group and a second resin containing a carboxyl group are contained, in the resin component the carboxyl group derived from the second resin being present in a molar ratio of 0.7 to 50 times the oxazoline group derived from the first resin. ### Claim 27 (depends on 26) The method of forming a lustrous electromagnetic wave transmissive coating film according to claim 26, wherein, after the coating, drying by heating and/or energy beam irradiation is conducted. ### Claim 28 (depends on 26) The method of forming a lustrous electromagnetic wave transmissive coating film according to claim 26, wherein the substrate is a plastic material. ### Claim 29 (depends on 26) The method of forming a lustrous electromagnetic wave transmissive coating film according to claim 26, wherein the substrate is transparent. ### Claim 30 (depends on 26) The method of forming a lustrous electromagnetic wave transmissive coating film according to claim 26, wherein the coating is based on spin coat coating. ### Claim 31 (depends on 26) The method of forming a lustrous electromagnetic wave transmissive coating film according to claim 26, wherein the coating is based on spray coating. ### Claim 32 (depends on 26) The method of forming a lustrous electromagnetic wave transmissive coating film according to claim 26, wherein the coating is based on ink-jet printing. ### Claim 33 An electromagnetic wave transmissive coating material composition for forming a lustrous electromagnetic wave transmissive coating film, the composition comprising: a solvent; dispersed metal nano-particles containing one or more kinds of metals; and a resin component that is soluble in ethanol, or, when water is added to a diethylene glycol diethyl ether solution obtained by dissolving 0.5 g of the resin component in 10 ml of diethylene glycol diethyl ether, an addition amount of the water until the diethylene glycol diethyl ether solution becomes turbid is 1.5 ml or more, wherein the resin component includes a first resin containing an oxazoline group and a second resin containing a carboxyl group, in the resin component the carboxyl groups derived from the second resin being present in a molar ratio of 0.7 to 50 times oxazoline group derived from the first resin. ### Claim 33 (depends on 33) The electromagnetic wave transmissive coating material composition according to claim 33, wherein the first resin contains 5 mmol/g-solid or more of oxazoline group. ### Claim 34 (depends on 33) The electromagnetic wave transmissive coating material composition according to claim 33, wherein the metal is silver or gold. ### Claim 34 (depends on 33) The electromagnetic wave transmissive coating material composition according to claim 33, wherein the solvent contains 50% by weight or more of alkylene glycol monoalkyl ethers represented by R—(O—R′)n—OH, where R represents an alkyl group, R′ represents an alkylene group and n represents an integer of 1 to 4. ### Claim 35 (depends on 33) The electromagnetic wave transmissive coating material composition according to claim 33, wherein the solvent contains a solvent of which surface tension at 25° C. is 33 mN/m or more in an amount of 5% by weight or less. ### Claim 36 (depends on 33) The electromagnetic wave transmissive coating material composition according to claim 33, wherein the solvent contains a solvent of which surface tension at 25° C. is 45 mN/m or more in an amount of 5% by weight or less.