# US 2019/0169447 A1 · Solvent and method of forming organic film using solvent > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0169447 A1 - Document ID: US20190169447A1 - Status: Published application - Kind: A1 - Application number: 16/206,067 - Filed: 2018-11-30 - Published: 2019-06-06 - Earliest claimed: 2017-12-01 - Assignees: Flosfia Inc. - Applicants: Flosfia Inc. - Inventors: Shigetaka KATORI; Takashi SHINOHE; Takuto IGAWA - Web page: https://patentgrep.com/patent/US20190169447A1 ## CPC - C09D 7/20: Diluents or solvents - C01B 32/156: After-treatment - C09D 1/00: Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances - C09D 5/24: Electrically-conducting paints {(conductive materials H01B1/00)} - C09D 7/67: {Particle size smaller than 100 nm} - C23C 16/448: characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials - H10K 71/15: characterised by the solvent used - B05D 1/60: {Deposition of organic layers from vapour phase (vapour phase deposition in general C23C14/00, C23C16/00)} - B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites - B82Y 40/00: Manufacture or treatment of nanostructures - H10K 85/211: {Fullerenes, e.g. C60} - 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) - C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C} - C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES ## Abstract In a first aspect of a present inventive subject matter, a solvent contains a nonpolar solvent containing an aromatic compound and a polar solvent that is an aprotic polar solvent. The ratio of the nonpolar solvent to the polar solvent by volume ratio is 5:1 to 1:1. ## Claims ### Claim 1 A solvent comprising: a nonpolar solvent comprising an aromatic compound; and a polar solvent that is an aprotic polar solvent, the ratio of the nonpolar solvent to the polar solvent by volume ratio being 5:1 to 1:1. ### Claim 2 (depends on 1) The solvent of claim 1, wherein the aromatic compound comprised in the nonpolar solvent is represented by Chemical Formula (1), in the Chemical Formula (1), wherein R1, R2, R3, R4, R5 and R6 each represent a hydrogen atom or an optionally substituted hydrocarbon group. ### Claim 3 (depends on 2) The solvent of claim 2, wherein two selected from among R1, R2, R3, R4, R5 and R6 in the Chemical Formula (1) are taken together to form a ring. ### Claim 4 (depends on 1) The solvent of claim 1, wherein the aprotic polar solvent is an amide solvent. ### Claim 5 (depends on 1) The solvent of claim 1, wherein the polar solvent has a boiling point that is higher than a boiling point of the nonpolar solvent by 50° C. or higher. ### Claim 6 (depends on 1) The solvent of claim 1, wherein the ratio of the nonpolar solvent to the polar solvent by volume ratio is 4:1 to 7:3. ### Claim 7 (depends on 1) A chemical composition comprising: the solvent of claim 1; and an organic compound. ### Claim 8 (depends on 7) The chemical composition of claim 7, wherein the organic compound is a cyclic compound. ### Claim 9 (depends on 7) The chemical composition of claim 7, wherein the organic compound is without a polar group. ### Claim 10 (depends on 7) The chemical composition of claim 7, wherein the organic compound has a solubility that is less than 1.0 mg/mL to the polar solvent at a temperature of 25° C. ### Claim 11 A solvent comprising: a nonpolar solvent comprises an aromatic compound; and a polar solvent that is an aprotic polar solvent, the ratio of the nonpolar solvent to the polar solvent by volume ratio being 4:1 to 7:3. ### Claim 12 (depends on 11) The solvent of claim 11, wherein the aromatic compound comprised in the nonpolar solvent is represented by Chemical Formula (1), in the Chemical Formula (1), wherein R1, R2, R3, R4, R5 and R6 each represent a hydrogen atom or an optionally substituted hydrocarbon group. ### Claim 13 (depends on 12) The solvent of claim 12, wherein two selected from among R1, R2, R3, R4, R5 and R6 in the Chemical Formula (1) are taken together to form a ring. ### Claim 14 (depends on 11) The solvent of claim 11, wherein the aprotic polar solvent is an amide solvent. ### Claim 15 (depends on 11) The solvent of claim 11, wherein the polar solvent has a boiling point that is higher than a boiling point of the nonpolar solvent by 50° C. or higher. ### Claim 16 (depends on 11) A chemical composition comprising: the solvent of claim 11; and an organic compound. ### Claim 17 (depends on 16) The chemical composition of claim 16, wherein the organic compound is a cyclic compound. ### Claim 18 (depends on 16) The chemical composition of claim 16, wherein the organic compound is without a polar group. ### Claim 19 (depends on 16) The chemical composition of claim 16, wherein the organic compound has a solubility that is less than 1.0 mg/mL to the polar solvent at a temperature of 25° C. ### Claim 20 A method of forming an organic film comprising: preparing a raw material solution comprising a solvent and an organic compound, the solvent comprising a nonpolar solvent that comprises an aromatic compound and a polar solvent that is an aprotic polar solvent; turning the raw material solution into atomized droplets; carrying the atomized droplets onto the base; and causing thermal reaction of the atomized droplets adjacent to the base to form an organic film. ### Claim 21 (depends on 20) The method of claim 20, wherein the turning the raw material solution into atomized droplets is done by using ultrasonic vibration. ### Claim 22 (depends on 20) The method of claim 20, wherein the base comprises at least one layer.