JP7656166B2 - Solvent composition, aerosol composition, cleaning agent, method for cleaning articles, composition for forming coating film, method for manufacturing articles with coating film, draining agent, rinse agent, and lubricant solution - Google Patents

Description

One embodiment of the present invention relates to a solvent composition comprising an azeotrope (like) composition containing Z-1-chloro-3,3,3-trifluoropropene and one or more hexane isomers. Another embodiment of the present invention relates to an aerosol composition containing the solvent composition, a cleaning agent, a method for cleaning an article using the cleaning agent, a composition for forming a coating film, a method for manufacturing an article with a coating film, a draining agent, a rinse agent, and a lubricant solution.

Fluorine-containing saturated compounds such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) have been used in applications such as blowing agents, heat transfer media, solvents, and cleaning agents. In these applications, the use of single component or azeotropic (like) compositions, i.e., those that do not substantially fractionate upon boiling or evaporation, is particularly desirable.

These fluorine-containing saturated compounds have a high global warming potential (GWP), raising concerns about their impact on the global environment, and their use is therefore restricted. As a result, hydrochlorofluoroolefins (HCFOs) have been developed as alternatives to CFCs and HCFCs. HCFOs have excellent environmental performance, with a short lifespan in the atmosphere and a small global warming potential.

However, the development of new, environmentally safe, non-fractionalizing compositions, including HCFOs, is difficult because the formation of azeotropic (like) compositions is not easily predictable. As a result, the industry is continually seeking new HCFO compositions that are performance-acceptable and environmentally safer alternatives to CFCs and HCFCs.

Meanwhile, Z-1-chloro-3,3,3-trifluoropropene (hereinafter also referred to as HCFO-1233zd(Z) or 1233zd(Z)) is one of the environmentally friendly compounds. For example, Patent Documents 1 and 2 describe that HCFO-1233zd(Z) forms an azeotrope-like composition with n-hexane, which is one of the main components of industrial hexane that is widely used as a solvent. Furthermore, Patent Documents 1 and 3 describe that HCFO-1233zd(Z) forms an azeotrope-like composition with 2-methylpentane, which is one of the main components of industrial hexane that is widely used as a solvent.

JP 2018-048149 A JP 2018-021199 A JP 2017-071777 A

As mentioned above, it is difficult to predict the formation of an azeotrope-like composition, and although other isomers of hexane exist, no study has been conducted to date on other hexane isomers that form an azeotrope or exhibit azeotrope-like properties with HCFO-1233zd(Z). Additionally, no study has been conducted on combinations of HCFO-1233zd(Z) with two or more hexane isomers.

One of the embodiments of the present invention aims to propose a solvent composition containing environmentally friendly Z-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(Z)) and hexane isomers, which is a novel azeotrope-like composition whose composition does not change even when evaporated. One of the embodiments of the present invention aims to propose an aerosol composition containing the solvent composition. Another of the embodiments of the present invention aims to propose a cleaning agent containing the solvent composition or the aerosol composition. Furthermore, one of the embodiments of the present invention aims to propose a method for cleaning an article using the cleaning agent. Another of the embodiments of the present invention aims to propose a coating film-forming composition containing the solvent composition or the aerosol composition. Furthermore, one of the embodiments of the present invention aims to propose a method for manufacturing an article with a coating film using the coating film-forming composition. Another of the embodiments of the present invention aims to propose a draining agent containing the solvent composition or the aerosol composition. Another of the embodiments of the present invention aims to propose a rinse agent containing the solvent composition or the aerosol composition. Furthermore, one of the embodiments of the present invention aims to propose a lubricant solution containing the solvent composition or the aerosol composition.

According to one embodiment of the present invention, a solvent composition is provided that includes an azeotrope-like composition containing Z-1-chloro-3,3,3-trifluoropropene and at least one selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane.

The solvent composition may contain 99.9999% to 80.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% to 20.0000% by mass of 3-methylpentane relative to the total amount of Z-1-chloro-3,3,3-trifluoropropene and 3-methylpentane.

The solvent composition may contain 99.9999% to 75.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% to 25.0000% by mass of 2,3-dimethylbutane relative to the total amount of Z-1-chloro-3,3,3-trifluoropropene and 2,3-dimethylbutane.

The solvent composition may contain 99.9999% to 60.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% to 40.0000% by mass of 2,2-dimethylbutane relative to the total amount of Z-1-chloro-3,3,3-trifluoropropene and 2,2-dimethylbutane.

The solvent composition may contain 99.9999% by mass to 85.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% by mass to 15.0000% by mass of methylcyclopentane relative to the total amount of Z-1-chloro-3,3,3-trifluoropropene and methylcyclopentane.

The solvent composition may further contain at least one selected from the group consisting of n-hexane, 2-methylpentane, and cyclopentane.

The solvent composition may further contain at least one selected from the group consisting of pentane, isopentane, benzene, and sulfur.

The solvent composition may further contain at least one solvent selected from the group consisting of hydrocarbons, alcohols, ketones, ethers, esters, chlorocarbons, hydrochlorofluorocarbons, hydrofluorocarbons, hydrofluoroethers, and hydrofluoroolefins.

According to one embodiment of the present invention, an aerosol composition is provided that contains any of the above solvent compositions and a propellant gas.

According to one embodiment of the present invention, a cleaning agent is provided that contains any of the above solvent compositions or aerosol compositions.

According to one embodiment of the present invention, a method for cleaning an article is provided, which includes a step of contacting the above-mentioned cleaning agent with an article to be cleaned having dirt attached thereto.

According to one embodiment of the present invention, a coating composition is provided that contains any of the above solvent compositions or aerosol compositions and a non-volatile component.

According to one embodiment of the present invention, there is provided a method for producing an article with a coating film, which comprises applying the above-mentioned coating film-forming composition to an article and then evaporating and removing the solvent composition.

According to one embodiment of the present invention, a draining agent is provided that contains any of the above solvent compositions.

The draining agent may further contain alcohol.

According to one embodiment of the present invention, a draining agent is provided that includes the above-mentioned aerosol composition.

The draining agent may further contain alcohol.

According to one embodiment of the present invention, a rinse agent is provided that contains any of the above solvent compositions.

According to one embodiment of the present invention, a rinse agent is provided that contains the above-mentioned aerosol composition.

According to one embodiment of the present invention, a lubricant solution is provided that contains any of the above solvent compositions and a lubricant.

According to one embodiment of the present invention, a lubricant solution is provided that contains the above-mentioned aerosol composition and a lubricant.

According to the present invention, a solvent composition is provided that contains a novel azeotrope (like) composition containing Z-1-chloro-3,3,3-trifluoropropene and hexane isomers, the composition of which does not change even when evaporated. The solvent composition according to the present invention has a low environmental impact, and the azeotrope (like) composition, which is the main component, is likely to maintain its performance as a liquid whose composition does not change even when used under open conditions. According to the present invention, an aerosol composition containing the solvent composition is provided. According to the present invention, a cleaning agent containing the solvent composition or the aerosol composition is provided. According to the present invention, a method for cleaning an article using the cleaning agent is provided. According to the present invention, a coating film-forming composition containing the solvent composition or the aerosol composition is provided. According to the present invention, a method for manufacturing an article with a coating film using the coating film-forming composition is provided. According to the present invention, a draining agent containing the solvent composition or the aerosol composition is provided. According to the present invention, a rinse agent containing the solvent composition or the aerosol composition is provided. According to the present invention, a lubricant solution containing the solvent composition or the aerosol composition is provided.

2 is a vapor-liquid equilibrium curve of a solvent composition according to an embodiment of the present invention. 2 is a vapor-liquid equilibrium curve of a solvent composition according to an embodiment of the present invention. 2 is a vapor-liquid equilibrium curve of a solvent composition according to an embodiment of the present invention. 2 is a vapor-liquid equilibrium curve of a solvent composition according to an embodiment of the present invention.

The following describes the solvent composition, aerosol composition, cleaning agent and article cleaning method, coating film-forming composition, manufacturing method for coated article, draining agent, rinse agent, and lubricant solution according to the embodiments of the present invention. However, the solvent composition, aerosol composition, cleaning agent and article cleaning method, coating film-forming composition, manufacturing method for coated article, draining agent, rinse agent, and lubricant solution according to the embodiments of the present invention are not to be interpreted as being limited to the description of the embodiments and examples shown below.

[Azeotropic (Like) Compositions]
Since fluorine-containing olefins are highly compatible with various solvents, it is possible to easily prepare a uniform composition. However, in the case of such a simple composition, there is an inherent problem that the liquid composition is easily variable. That is, even if multiple types of liquids are mixed and compatibility is ensured, the problem that the liquid composition is easily variable due to the difference in volatility of each component cannot be avoided. For example, when a binary liquid composition is placed in an ultrasonic cleaner and used as a cleaning agent, generally, a low-boiling point component with high volatility (a component with a high vapor pressure) volatilizes preferentially, and a high-boiling point component with low volatility is concentrated in the cleaning tank. For example, in the case of a composition of a low-boiling point component with high cleaning power and a high-boiling point component with low cleaning power, the concentration of the low-boiling point component in the cleaning liquid decreases over time, which may cause poor cleaning. In particular, when a non-flammable composition is prepared by blending a flammable solvent with a non-flammable solvent, the cleaning liquid may become a flammable composition if the non-flammable component volatilizes preferentially.

In addition, from both an environmental and economic standpoint, it is desirable to recover and reuse cleaning solvents after use through operations such as distillation. However, in the case of two-component liquids, it is generally necessary to recover the two liquid components, which have different boiling points, separately, and recovery and reuse can be an operational burden.

For this reason, when using a binary (multi-component) liquid composition as a cleaning agent or solvent, the liquid composition must be frequently analyzed, and the appropriate ratio must be constantly mixed to ensure that the composition is within the appropriate range, and any volatilized components must be replenished. However, managing the liquid composition in this way can be a significant burden on the workforce.

In contrast, azeotropic compositions evaporate with the same composition as the liquid, making them a very favorable composition that does not change during use. In this specification, "azeotrope" refers to azeotropy in the strict thermodynamic sense. For example, in the case of a water/ethanol mixture, a composition of ethanol (96% by mass) and water (4% by mass) is an azeotrope, and the vapor that exists in vapor-liquid equilibrium with this is also "ethanol (96% by mass): water (4% by mass)", which is completely consistent with the liquid composition. This phenomenon is called "azeotropy." At a specific temperature and pressure, there is only one composition of the azeotrope.

"Azeotrope-like" is also called "quasi-azeotrope" and refers to the phenomenon where, although it is not strictly an azeotrope thermodynamically, for liquids with a certain range of compositions, the liquid composition is substantially equal to the composition of the gas in equilibrium. Even if the compositions of the gas phase and liquid phase do not match perfectly, as long as they are substantially the same, those skilled in the art can treat it as if it were an azeotropic composition. In this case, the smaller the difference in the gas-liquid equilibrium composition between the gas phase and liquid phase, the better. This phenomenon in which the gas-liquid equilibrium composition of the gas phase and liquid phase is substantially the same is called azeotrope-like or pseudo-azeotrope, and the composition is called an azeotrope-like composition or pseudo-azeotropic composition.

Academically, azeotropic phenomena and pseudo-azeotropic phenomena (or azeotrope-like) should be distinguished, but in practical applications such as cleaning, there is no need to distinguish between azeotropic phenomena and azeotrope-like phenomena (or pseudo-azeotropes), and they can be treated in exactly the same way. Therefore, in this specification, azeotropic phenomena and azeotrope-like phenomena (or pseudo-azeotropes) are collectively referred to as "azeotrope (like)." The composition at that time is also referred to as "azeotrope (like) composition." In azeotrope (like), the presence or absence of an azeotropic point does not matter. It is sufficient that the vapor-liquid equilibrium composition of the vapor phase and liquid phase is essentially the same.

"Azeotrope-like" is not theoretically derived, but is discovered only when vapor-liquid equilibrium is experimentally investigated for various types and composition ratios of liquids, and the vapor phase composition coincidentally substantially matches the liquid phase composition. The inventors have discovered that an azeotrope-like composition consisting of Z-1-chloro-3,3,3-trifluoropropene and at least one selected from the group consisting of hexane isomers 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane has an azeotropic point where the vapor and liquid compositions are completely identical, and/or has an azeotrope-like composition where the vapor and liquid compositions are substantially the same.

[Z-1-chloro-3,3,3-trifluoropropene]
Z-1-chloro-3,3,3-trifluoropropene is a non-flammable solvent that has no flash point and no flammable range according to the explosion limit test method ASTM E681. In addition, 1233zd(Z) has an ozone depletion potential (ODP) of substantially zero and a global warming potential (GWP) of <1, and thus has excellent environmental chemical properties. Therefore, 1233zd(Z) is not a component specified in the Ozone Layer Protection Act, the Global Warming Countermeasures Promotion Act, the Fluorocarbons Emission Control Act, the Fire Service Act, the High Pressure Gas Safety Act, and the like, and can be used in a wide range of applications.

[Solvent composition]
The present solvent composition includes an azeotrope (like) composition consisting of 1233zd(Z) and at least one selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane. In one embodiment, the present solvent composition may include 99.9999% by mass to 80.0000% by mass of 1233zd(Z) and 0.0001% by mass to 20.0000% by mass of 3-methylpentane, based on the total amount of 1233zd(Z) and 3-methylpentane. Among these, when the present solvent composition includes 99.9999% by mass to 90.0000% by mass of 1233zd(Z) and 0.0001% by mass to 10.0000% by mass of 3-methylpentane, the variation in the liquid composition is smaller, which is preferable.

In one embodiment, the solvent composition may contain 99.9999% to 75.0000% by mass of 1233zd(Z) and 0.0001% to 25.0000% by mass of 2,3-dimethylbutane relative to the total amount of 1233zd(Z) and 2,3-dimethylbutane. Among these, when the solvent composition contains 99.9999% to 85.0000% by mass of 1233zd(Z) and 0.0001% to 15.0000% by mass of 2,3-dimethylbutane, the variation in the liquid composition is smaller, which is preferable.

In one embodiment, the solvent composition may contain 99.9999% to 60.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% to 40.0000% by mass of 2,2-dimethylbutane relative to the total amount of Z-1-chloro-3,3,3-trifluoropropene and 2,2-dimethylbutane. Among these, when the solvent composition contains 99.9999% to 65.0000% by mass of 1233zd(Z) and 0.0001% to 35.0000% by mass of 2,2-dimethylbutane, the variation in the liquid composition is smaller, which is preferable.

In one embodiment, the solvent composition may contain 99.9999% to 85.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% to 15.0000% by mass of methylcyclopentane relative to the total amount of Z-1-chloro-3,3,3-trifluoropropene and methylcyclopentane. Among these, when the solvent composition contains 99.9999% to 90.0000% by mass of 1233zd(Z) and 0.0001% to 10.0000% by mass of methylcyclopentane, the fluctuation of the liquid composition is smaller, which is preferable.

In one embodiment, the solvent composition may further contain at least one selected from the group consisting of n-hexane, 2-methylpentane, and cyclopentane in an azeotropic (like) composition consisting of 1233zd(Z) and at least one selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane. In one embodiment, the solvent composition may contain at least two or at least three selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, methylcyclopentane, 2-methylpentane, and n-hexane together with 1233zd(Z). In one embodiment, the solvent composition may contain a mixture of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, methylcyclopentane, 2-methylpentane, and n-hexane together with 1233zd(Z).

As is clear from the gas-liquid equilibrium measurements shown in the examples below, a solvent composition consisting of 1233zd(Z) and at least one selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane, and a solvent composition consisting of 1233zd(Z) and industrial hexane are azeotropic (like) compositions in which the composition of the gas phase and the liquid phase are substantially the same at a given composition.

The present solvent composition can be produced through a process of mixing 1233zd(Z) with at least one selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane. It goes without saying that one of the preferred embodiments of the present azeotrope (like) composition is one that is high in purity and substantially free of impurities. However, depending on the application, a liquid composition with such high purity may not be required. In such a case, it is also possible to use raw materials for synthesizing 1233zd(Z) or a composition containing a small amount of by-products remaining. For example, it is also possible to use a composition in which the total amount of raw materials and by-products is less than 10% by mass, preferably less than 5% by mass, particularly preferably less than 3% by mass, and even more preferably less than 1% by mass, relative to the azeotrope (like) composition.

In one embodiment, the solvent composition may further contain at least one selected from the group consisting of pentane, isopentane, benzene, and sulfur. These components may be contained in industrial hexane, and the solvent composition may contain these components to the extent that they are generally contained in industrial hexane. More specifically, the solvent composition may contain at least one selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane in the ratio that is contained in industrial hexane. Thus, the solvent composition may also contain an azeotropic (like) composition combining 1233zd(Z) and industrial hexane. The sulfur content refers to, for example, sulfur-containing components of naphtha (hydrocarbon streams with a boiling range of about 50°C to about 220°C found in oil refining operations), and specific examples include mercaptan, thiophene, methylthiophene, tetrahydrothiophene (THT), ethylthiophene, propylthiophene, butylthiophene, thiophenol, methylthiophenol, benzothiophene, methylbenzothiophene, and alkylbenzothiophenes. These may be used alone or in mixtures of two or more.

On the other hand, when it is required that the present solvent composition be an azeotrope (like) composition of high purity, it is preferable to perform precision distillation of each of 1233zd(Z) and at least one selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane to remove impurities derived from the raw materials and increase the purity, and then mix the two components to prepare the present azeotrope (like) composition.

In one embodiment, the solvent composition may further contain at least one solvent selected from the group consisting of hydrocarbons, alcohols, ketones, ethers, esters, chlorocarbons, hydrochlorofluorocarbons, hydrofluorocarbons, hydrofluoroethers, and hydrofluoroolefins.

Examples of hydrocarbons include 2-methylbutane, n-heptane, 2-methylhexane, 3-methylhexane, 2,4-dimethylpentane, n-octane, 2-methylheptane, 3-methylheptane, 4-methylheptane, 2,2-dimethylhexane, 2,5-dimethylhexane, 3,3-dimethylhexane, 2-methyl-3-ethylpentane, 3-methyl-3-ethylpentane, 2,3,3-trimethylpentane, 2,3,4-trimethylpentane, 2,2,3- Examples of such compounds include trimethylpentane, 2-methylheptane, 2,2,4-trimethylpentane, n-nonane, 2,2,5-trimethylhexane, n-decane, n-dodecane, 2-methyl-2-butene, 1-pentene, 2-pentene, 1-hexene, 1-octene, 1-nonene, 1-decene, cyclohexane, methylcyclohexane, ethylcyclohexane, bicyclohexane, cyclohexene, α-pinene, dipentene, decalin, tetralin, and amylnaphthalene. These compounds may be used alone or in combination of two or more.

Examples of alcohols include methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, sec-butyl alcohol, isobutyl alcohol, tert-butyl alcohol, 1-pentanol, 2-pentanol, 1-ethyl-1-propanol, 2-methyl-1-butanol, 3-methyl-1-butanol, 3-methyl-2-butanol, neopentyl alcohol, 1-hexanol, 2-methyl-1-pentanol, 4-methyl-2-pentanol, 2-ethyl-1-butanol, 1-heptanol, and 2-heptanol. Examples of such alcohols include 3-heptanol, 1-octanol, 2-octanol, 2-ethyl-1-hexanol, 1-nonanol, 3,5,5-trimethyl-1-hexanol, 1-decanol, 1-undecanol, 1-dodecanol, allyl alcohol, propargyl alcohol, benzyl alcohol, cyclohexanol, 1-methylcyclohexanol, 2-methylcyclohexanol, 3-methylcyclohexanol, 4-methylcyclohexanol, α-terpineol, 2,6-dimethyl-4-heptanol, nonyl alcohol, and tetradecyl alcohol. These may be used alone, or two or more of these compounds may be used in combination.

Examples of ketones include acetone, methyl ethyl ketone, 2-pentanone, 3-pentanone, 2-hexanone, methyl isobutyl ketone, 2-heptanone, 3-heptanone, 4-heptanone, diisobutyl ketone, mesityl oxide, phorone, 2-octanone, cyclohexanone, methylcyclohexanone, isophorone, 2,4-pentanedione, 2,5-hexanedione, diacetone alcohol, acetophenone, etc. These may be used alone, or two or more of these compounds may be used in combination.

Examples of ethers include diethylene glycol monobutyl ether.

Examples of esters include methyl formate, ethyl formate, propyl formate, butyl formate, isobutyl formate, pentyl formate, methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate, sec-butyl acetate, pentyl acetate, methoxybutyl acetate, sec-hexyl acetate, 2-ethylbutyl acetate, 2-ethylhexyl acetate, cyclohexyl acetate, benzyl acetate, methyl propionate, ethyl propionate, butyl propionate, methyl butyrate, ethyl butyrate, and butyric acid. Examples of such compounds include butyl, isobutyl isobutyrate, ethyl 2-hydroxy-2-methylpropionate, methyl benzoate, ethyl benzoate, propyl benzoate, butyl benzoate, benzyl benzoate, γ-butyrolactone, diethyl oxalate, dibutyl oxalate, dipentyl oxalate, diethyl malonate, dimethyl maleate, diethyl maleate, dibutyl maleate, dibutyl tartrate, tributyl citrate, dibutyl sebacate, dimethyl phthalate, diethyl phthalate, and dibutyl phthalate. These compounds may be used alone or in combination of two or more.

Examples of chlorocarbons include methylene chloride, 1,1-dichloroethane, 1,2-dichloroethane, 1,1,2-trichloroethane, 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, pentachloroethane, 1,1-dichloroethylene, (Z)-1,2-dichloroethylene, (E)-1,2-dichloroethylene, trichloroethylene, tetrachloroethylene, etc. These may be used alone, or two or more of these compounds may be used in combination.

Examples of hydrochlorofluorocarbons (hereinafter also referred to as HCFCs) include dichlorofluoroethane, dichlorodifluoroethane, dichlorotrifluoroethane, chlorofluoropropane, chlorodifluoropropane, chlorotrifluoropropane, chlorotetrafluoropropane, dichlorofluoropropane, dichlorodifluoropropane, dichlorotrifluoropropane, dichlorotetrafluoropropane, dichloropentafluoropropane, trichlorofluoropropane, trichlorodifluoropropane, trichlorotrifluoropropane, etc. These may be used alone, or two or more of these compounds may be used in combination.

Examples of hydrofluorocarbons (hereinafter also referred to as HFCs) include 1,1,1,3,3-pentafluorobutane, 1,1,1,2,2,3,4,5,5,5-decafluoropentane, 1,1,2,2,3,3,4-heptafluorocyclopentane, 1,1,1,2,2,3,3,4,4-nonafluorohexane, 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorohexane, and 1,1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane. These may be used alone, or two or more of these compounds may be used in combination.

Examples of hydrofluoroethers (hereinafter also referred to as HFEs) include (perfluorobutoxy)methane, (perfluorobutoxy)ethane, 1,1,2,2-tetrafluoro-1-(2,2,2-trifluoroethoxy)ethane, heptafluoropropyl methyl ether, nonafluorobutyl methyl ether, nonafluorobutyl ethyl ether, 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane, 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (HFE-347pc-f), 1,1,1,3,3,3-hexafluoro-2-methoxypropane (HFE-356mmz), and the like. These may be used alone, or two or more of these compounds may be used in combination.

Examples of hydrofluoroolefins include hydrochlorofluoroolefins other than Z-1-chloro-3,3,3-trifluoropropene, and hydrofluoroolefins. For example, E-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(E)), Z-1-chloro-2,3,3-trifluoro-1-propene (HCFO-1233yd(Z)), E-1-chloro-2,3,3-trifluoro-1-propene (HCFO-1233yd(E)), Z-1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd(Z)), E-1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd(E)), 1 , 1-dichloro-3,3,3-trifluoropropene (HCFO-1223za), 1,1,2-trichloro-3,3,3-trifluoropropene (HCFO-1213xa), Z-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz (Z)), E-1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene (HCFO-1437dycc (E)), Z-1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene (HCFO-14 37dycc(Z)), Z-1,1,1,2,4,4,5,5,5-nonafluoro-2-pentene (HFO-1429myz(Z)), E-1,1,1,2,4,4,5,5,5-nonafluoro-2-pentene (HFO-1429myz(E)), Z-1,1,1,3,4,4,5,5,5-nonafluoro-2-pentene (HFO-1429mzy(Z)), E-1,1,1,3,4,4,5,5,5-nonafluoro-2-pentene (HFO-1429mzy(E)), Z-1-chloro-2,3 , 3,3-tetrafluoropropene (HCFO-1224yd(Z)), E-1-chloro-2,3,3,3-tetrafluoropropene (HCFO-1224yd(E)), Z-2-chloro-1,3,3,3-tetrafluoropropene (HCFO-1224xe(Z)), E-2-chloro-1,3,3,3-tetrafluoropropene (HCFO-1224xe(E)), 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), methoxyperfluoroheptene, etc. These may be used alone or in combination of two or more compounds.

In one embodiment, the solvent composition may contain one or more of the above solvents. The solvent composition may contain the above solvents in an amount of 50% by mass or less, 45% by mass or less, 40% by mass or less, 35% by mass or less, 30% by mass or less, 25% by mass or less, 20% by mass or less, 15% by mass or less, 10% by mass or less, 5% by mass or less, or 1% by mass or less, based on the total amount of the above azeotropic (like) composition.

In one embodiment, the solvent composition may further include at least one additional component. Examples of additional components include stabilizers, surfactants, flame retardants, metal passivators, and rust inhibitors.

The stabilizer is not particularly limited, but it is more preferable to use one that is entrained by the distillation operation or that forms an azeotrope-like mixture. Specific examples of stabilizers include nitro compounds, epoxy compounds, phenols, imidazoles, amines, alcohols, unsaturated hydrocarbons, etc., other than the additives mentioned above. These stabilizers may be used alone or in combination of two or more kinds.

As the nitro compound, known compounds may be used, including aliphatic and/or aromatic derivatives. Examples of aliphatic nitro compounds include nitromethane, nitroethane, 1-nitropropane, and 2-nitropropane. Examples of aromatic nitro compounds include nitrobenzene, o-, m-, or p-dinitrobenzene, trinitrobenzene, o-, m-, or p-nitrotoluene, o-, m-, or p-ethylnitrobenzene, 2,3-, 2,4-, 2,5-, 2,6-, 3,4-, or 3,5-dimethylnitrobenzene, o-, m-, or p-nitroacetophenone, o-, m-, or p-nitrophenol, and o-, m-, or p-nitroanisole.

Examples of epoxy compounds include monoepoxy compounds such as ethylene oxide, 1,2-butylene oxide, propylene oxide, styrene oxide, cyclohexene oxide, glycidol, epichlorohydrin, glycidyl methacrylate, phenyl glycidyl ether, allyl glycidyl ether, methyl glycidyl ether, butyl glycidyl ether, and 2-ethylhexyl glycidyl ether, and polyepoxy compounds such as diepoxybutane, vinylcyclohexene dioxide, neopentyl glycol diglycidyl ether, ethylene glycol diglycidyl ether, glycerin polyglycidyl ether, and trimethylolpropane triglycidyl ether.

Phenols include phenols containing various substituents such as alkyl groups, alkenyl groups, alkoxy groups, carboxyl groups, carbonyl groups, and halogens in addition to hydroxyl groups. Examples include monohydric phenols such as 2,6-di-t-butyl-p-cresol, o-cresol, m-cresol, p-cresol, thymol, p-t-butylphenol, o-methoxyphenol, m-methoxyphenol, p-methoxyphenol, eugenol, isoeugenol, butylhydroxyanisole, phenol, and xylenol, and dihydric phenols such as t-butylcatechol, 2,5-di-t-aminohydroquinone, and 2,5-di-t-butylhydroquinone.

Imidazoles include 1-methylimidazole, 1-n-butylimidazole, 1-phenylimidazole, 1-benzylimidazole, 1-(β-oxyethyl)imidazole, 1-methyl-2-propylimidazole, 1-methyl-2-isobutylimidazole, 1-n-butyl-2-methylimidazole, 1,2-dimethylimidazole, 1,4-dimethylimidazole, 1,5-dimethylimidazole, 1,2,5-trimethylimidazole, 1,4,5-trimethylimidazole, and 1-ethyl-2-methylimidazole, which have an alkyl group, cycloalkyl group, or aryl group having 1 to 18 carbon atoms as a substituent at the N-position. These compounds may be used alone, or two or more of them may be used in combination.

Examples of amines include pentylamine, hexylamine, diisopropylamine, diisobutylamine, di-n-propylamine, diallylamine, triethylamine, N-methylaniline, pyridine, morpholine, N-methylmorpholine, triallylamine, allylamine, α-methylbenzylamine, methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, propylamine, isopropylamine, dipropylamine, butylamine, isobutylamine, dibutylamine, tributylamine, dipentylamine, tripentylamine, 2-ethylhexylamine, aniline, N,N-dimethylaniline, N,N-diethylaniline, ethylenediamine, propylenediamine, diethylenetriamine, tetraethylenepentamine, benzylamine, dibenzylamine, diphenylamine, and diethylhydroxylamine. These may be used alone, or two or more of these compounds may be used in combination.

Examples of alcohols include 1-butanol, 2-butanol, and 2-methyl-2-propanol. These may be used alone or in combination of two or more compounds.

Examples of unsaturated hydrocarbons include α-methylstyrene, p-isopropenyltoluene, isoprenes, propadienes, terpenes, etc. These may be used alone or in combination of two or more compounds.

Specific examples of surfactants include nonionic surfactants, cationic surfactants, and anionic surfactants. These cleaning power enhancers may be used alone or in combination of two or more. In order to synergistically improve cleaning power and interfacial action, cationic surfactants and anionic surfactants may be added to the present azeotrope (like) composition in addition to the nonionic surfactants. Examples of nonionic surfactants include sorbitan aliphatic esters such as sorbitan monooleate and sorbitan trioleate; polyoxyethylene sorbitol fatty acid esters such as polyoxyethylene sorbitol tetraoleate; polyethylene glycol fatty acid esters such as polyoxyethylene monolaurate; polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether; polyoxyethylene alkyl phenyl ethers such as polyoxyethylene nonyl phenyl ether; polyoxyethylene alkylamine fatty acid amides such as polyoxyethylene oleic acid amide, etc.

Flame retardants include, but are not limited to, phosphates, halogenated aromatic compounds, fluorinated iodocarbons, fluorinated bromocarbons, etc.

The solvent composition may contain the above-mentioned additional components in a total amount of 0.001% to 30% by mass relative to the solvent composition. For example, 30% by mass or less, 10% by mass or less, 5% by mass or less, or 3% by mass or less may be added relative to 100% by mass of the solvent composition. Alternatively, 0.001% by mass or more, 0.01% by mass or more, 0.1% by mass or more, or 1% by mass or more may be added relative to 100% by mass of the solvent composition. In an embodiment, the amount of the additional component added may be, relative to 100% by mass of the solvent composition, as follows: 0.001% by mass to 30% by mass; 0.001% by mass to 10% by mass; 0.001% by mass to 5% by mass; 0.001% by mass to 3% by mass; 0.001% by mass to 1% by mass; 0.001% by mass to 0.01% by mass; 0.001% by mass to 0.1% by mass; 0.01% by mass to 30% by mass; 0.01% by mass to 10% by mass; 0.01% by mass to 5% by mass; 0.01% by mass to 3% by mass; 0.01% by mass or more 1 mass% or less; 0.01 mass% or more and 0.1 mass% or less; 0.1 mass% or more and 30 mass% or less; 0.1 mass% or more and 10 mass% or less; 0.1 mass% or more and 5 mass% or less; 0.1 mass% or more and 3 mass% or less; 0.1 mass% or more and 1 mass% or less; 1 mass% or more and 30 mass% or less; 1 mass% or more 1 0 mass% or less; 1 mass% or more and 5 mass% or less; 1 mass% or more and 3 mass% or less; 3 mass% or more and 30 mass% or less; 3 mass% or more and 10 mass% or less; 3 mass% or more and 5 mass% or less; 5 mass% or more and 30 mass% or less; 5 mass% or more and 10 mass% or less; 10 mass% or more and 30 mass% or less.

The present solvent composition may have the following compositions, but is not limited thereto. The present solvent composition may be a composition containing 10% by mass or less of a stabilizer (e.g., a nitro compound, an epoxy compound, a phenol, an imidazole, an amine, an alcohol, a nitro compound and an epoxy compound, a nitro compound and a phenol, a nitro compound and an amine, or a phenol and an amine) relative to 100% by mass of the present solvent composition; a composition containing 10% by mass or less of a stabilizer and 1% by mass or less of a surfactant; a composition containing 10% by mass or less of a stabilizer, 1% by mass or less of a surfactant, and 5% by mass or less of a rust inhibitor; a composition containing 10% by mass or less of a stabilizer and 5% by mass or less of a flame retardant; a composition containing 5% by mass or less of a surfactant; a composition containing 5% by mass or less of a surfactant and 5% by mass or less of a rust inhibitor; a composition containing 5% by mass or less of a rust inhibitor; or a composition containing 5% by mass or less of a metal passivator.

In one embodiment, the solvent composition can be mixed with a propellant gas to form an aerosol composition.

The propellant gas may be a liquefied gas or a compressed gas. Examples include, but are not limited to, liquefied petroleum gas (LPG), dimethyl ether (DME), nitrogen, carbon dioxide, compressed air, argon, and fluorine-based gases. These may be used alone or in a mixture of two or more. Examples of fluorine-based gases include, but are not limited to, difluoromethane (HFC-32), 1,1-difluoroethane (HFC-152a), 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1,1,2,2-pentafluoroethane (HFC-125), 1,1,1-trifluoroethane (HFC-143a), 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea), E-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), 2,3,3,3-tetrafluoropropene (HFO-1234yf), and the like. Among fluorine-based gases, difluoromethane, 1,1,1,2-tetrafluoroethane, 1,1,1,2,2-pentafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, E-1,3,3,3-tetrafluoropropene, and 2,3,3,3-tetrafluoropropene are preferred because they are non-flammable or slightly flammable, and E-1,3,3,3-tetrafluoropropene, 2,3,3,3-tetrafluoropropene, and mixtures of E-1,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene are particularly preferred because they have a small global warming potential (GWP) and low toxicity.

The aerosol composition can be produced by mixing the solvent composition with the above-mentioned propellant gas, and can be filled into a pressure can for supply.

[Use as a cleaning agent or solvent (method of cleaning cleaning articles)]
The present solvent composition is suitable for removing foreign matter, oils and fats, grease, wax, flux, ink, etc. from precision machine parts, electronic materials (printed circuit boards, liquid crystal displays, magnetic recording parts, semiconductor materials, etc.), resin processed parts, optical lenses, clothing, etc. The present solvent composition has appropriate fluidity and solubility, so that foreign matter (particles, etc.) can be washed away or dissolved to remove it. In addition, in the cleaning of various vehicles, vehicles, and transport means such as automobiles, motorcycles, bicycles, construction machines, agricultural machines, aircraft, railway vehicles, and ships (particularly, brake cleaning of these vehicles), a process of wetting and washing away dirt is required, and the present solvent composition has an appropriate boiling point and can wet and wash away dirt, so that it is suitable for such cleaning (particularly, use as a brake cleaner). The cleaning method is not particularly limited, but examples include methods such as immersing the article to be cleaned in the present solvent composition to wash away dirt, wiping with a rag, and spray cleaning, and these may be used in combination. One particularly preferred embodiment is to place the solvent composition in an ultrasonic cleaner, immerse the article to be cleaned in the solution, and perform ultrasonic cleaning. Another preferred embodiment is spray cleaning, for example, a method in which the solvent composition is mixed with a propellant gas to form an aerosol, which is then sprayed onto various articles to be cleaned.

As mentioned above, even when used in an open system, the composition of this solvent composition hardly changes, so it provides stable cleaning power without the need for frequent composition control. This is a major practical advantage.

If the cleaning solution used for cleaning is recovered and then subjected to a distillation operation, oils and foreign matter (particles) can be separated and removed, and the present solvent composition can be recovered. When recovering the present solvent composition, a filtration operation may be performed. Since a typical distillation regeneration device for cleaning agents is a simple distillation type, when the present solvent composition contains an azeotropic (like) composition consisting of 1233zd(Z) and at least one selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane, it can be regenerated with a commercially available distillation regeneration device without substantial change in composition.

During the distillation operation, 1233zd(Z) and at least one liquid component selected from the group consisting of 3-methylpentane, 2,3-dimethylbutane, 2,2-dimethylbutane, and methylcyclopentane maintain the properties of an azeotropic (like) composition, so the recovered liquid can be reused as a cleaning solvent without undergoing extensive composition adjustment. Note that if the above-mentioned "solvent" or "additional component" has been used, the "solvent" or "additional component" may be removed by distillation, so in that case it is desirable to replenish it separately.

[For draining and rinsing purposes]
The present solvent composition can be used as a draining agent. In the manufacturing process of articles handled in various industrial fields such as automobiles, machinery, precision instruments, electricity, electronics, and optics, the articles may be washed with water such as pure water, or washed with an aqueous cleaner, a quasi-aqueous cleaner obtained by blending an aqueous cleaner with a water-soluble solvent, an alcoholic cleaner, a glycol ether cleaner, a hydrocarbon cleaner obtained by blending a surfactant with a hydrocarbon, or the like. When an aqueous cleaner or a quasi-aqueous cleaner is used, water is attached to the article after washing, and a draining process is generally performed after the washing process to remove water with a draining agent. The present solvent composition can be suitably used as a draining agent used in such a draining process. In one embodiment, the present draining agent includes the present solvent composition. Alternatively, in one embodiment, the present draining agent includes the above-mentioned aerosol composition instead of the present solvent composition. When the present solvent composition or the aerosol composition is used as a draining agent, it is suitable to further include an alcohol as a solvent. Similarly, the present solvent composition can be suitably used as a rinse agent for removing a high-boiling point cleaning agent attached to an article after a cleaning process using the high-boiling point cleaning agent. In one embodiment, the rinse agent includes the present solvent composition or the aerosol composition.

The method for draining water is not particularly limited except that the solvent composition or aerosol composition is used as a draining agent, and any conventionally known method can be used. For example, a method in which the item to be drained is brought into contact with the solvent composition or aerosol composition and then dried can be used.

In some embodiments, the solvent composition exhibits a cleaning action as well as a draining action, so that the cleaning step and the draining step can be performed at the same time. That is, by performing the cleaning step, dirt attached to the object to be cleaned can be removed, and moisture that may adhere to the object to be cleaned can be removed. Therefore, it is not necessary to use a cleaning agent and a draining agent separately in the cleaning step and the draining step, which is more productive. This does not prevent the cleaning agent and the draining agent from being used separately in the cleaning step and the draining step, and the solvent composition may be used as a cleaning agent and/or a draining agent in each step as desired. In some embodiments, the solvent composition is suitable for cleaning an article (an article to be cleaned) to which dirt containing water (e.g., water-soluble oil) is attached. By using the solvent composition, moisture can be removed together with dirt attached to the object to be cleaned.

[Method of producing a coating film-forming composition and a coated article]
The present solvent composition can also be used as a solvent for applying a non-volatile component to the surface of an article. A solute component is dissolved in the present solvent composition to form a coating film-forming composition, which is applied to an article, and the solvent composition is evaporated to form a coating film of the non-volatile component on the article. In addition, in the coating film-forming composition and the method for producing an article with a coating film, which are one embodiment of the present invention, the present aerosol composition can be used instead of or together with the present solvent composition.

Non-volatile components here include lubricants for imparting lubricity to articles, paints and rust inhibitors for imparting rust prevention to metal parts, paints and moisture-proof coating agents for imparting water repellency to articles, paints and fingerprint inhibitors for imparting stain-proofing properties to articles, etc.

A lubricant can also be dissolved in the solvent composition to form a lubricant solution. By using the solvent composition or aerosol composition as a solvent for a lubricant, the lubricant solution or aerosol composition is environmentally friendly, has excellent solubility for the lubricant, and dries quickly enough, making it suitable for forming a lubricant coating film.

A lubricant is a substance used to lubricate friction surfaces and improve the mechanical efficiency of the friction surfaces. It is used to reduce friction at the contact surfaces and prevent heat generation and wear damage when two members move with their surfaces in contact with each other. Lubricants are required to have appropriate viscosity, physical and chemical stability, oiliness, and oxidation stability. The form of the lubricant may be liquid (oil), semi-solid (grease), or solid. Types of lubricants include mineral oil-based lubricants, synthetic oil-based lubricants, fluorine-based lubricants, and silicone-based lubricants. These may be used alone or in combination.

As the lubricant, a fluorine-based lubricant or a silicone-based lubricant is preferred because of its excellent solubility or dispersibility in the solvent composition.

Fluorine-based lubricants refer to lubricants that have fluorine atoms in the molecule, and examples of such lubricants include fluorine-based solid lubricants such as fluorine oil, fluorine grease, and polytetrafluoroethylene resin powder.

As the fluorine oil, perfluoropolyether (hereinafter, also referred to as PFPE) or oligomers of chlorotrifluoroethylene are preferable, and examples thereof include products with the names "Krytox (registered trademark) GPL102" (manufactured by DuPont Co., Ltd.), "Daifloil #1", "Daifloil #3", "Daifloil #10", "Daifloil #20", "Daifloil #50", "Daifloil #100", and "Demnum S-65" (all manufactured by Daikin Industries, Ltd.), the "Fomblin (registered trademark) Y" series, the "Fomblin (registered trademark) M" series, the "Fomblin (registered trademark) W" series, and the "Fomblin (registered trademark) Z" series (all manufactured by Solvay Specialty Polymers).

As the fluorine grease, a fluorine oil such as PFPE or a low polymer of chlorotrifluoroethylene is preferably used as a base oil, and polytetrafluoroethylene powder or other thickeners are blended. For example, products with the names "Krytox (registered trademark) Grease 240AC" (manufactured by DuPont Co., Ltd.), "Daifloil Grease DG-203", "Demnum L65", "Demnum L100", "Demnum L200" (all manufactured by Daikin Corporation), "Sumitec F936" (manufactured by Sumitomo Lubricants Co., Ltd.), "Molycoat (registered trademark) HP-300", "Molycoat (registered trademark) HP-500", "Molycoat (registered trademark) HP-870", "Molycoat (registered trademark) 6169" (all manufactured by Dow Corning Toray Co., Ltd.) and the like can be mentioned.

Silicone-based lubricants refer to lubricants that contain silicone, such as silicone oil and silicone grease.

Examples of silicone oils include straight silicones, and modified silicones such as reactive silicones and non-reactive silicones. More specifically, straight silicones include dimethyl silicones, methylphenyl silicones, and methylhydrogen silicones, which are bonded with methyl groups, phenyl groups, and hydrogen atoms as substituents. Examples of reactive silicones include amino-modified, epoxy-modified, carboxy-modified, carbinol-modified, methacryl-modified, phenol-modified, and heterogeneous functional group-modified. Examples of non-reactive silicones include polyether-modified, methylstyryl-modified, alkyl-modified, higher fatty acid ester-modified, special hydrophilic modified, and fluorine-modified. These silicones may be one type or a mixture of two or more types. Examples of silicone oils include products with the names "Shin-Etsu Silicone KF-96," "Shin-Etsu Silicone KF-965," "Shin-Etsu Silicone KF-968," "Shin-Etsu Silicone KF-99," "Shin-Etsu Silicone KF-50," "Shin-Etsu Silicone KF-54," "Shin-Etsu Silicone HIVACF-4," "Shin-Etsu Silicone HIVACF-5," "Shin-Etsu Silicone KF-56A," and "Shin-Etsu Silicone KF-995" (all manufactured by Shin-Etsu Chemical Co., Ltd.), "SH200" (manufactured by Dow Corning Toray Co., Ltd.), and "MDX4-4159" (manufactured by Dow Corning Corporation).

As silicone grease, products that use the above-mentioned silicone oils as base oils, thickeners such as metal soaps, and various additives are preferred. For example, products with the names "Shin-Etsu Silicone G-30 Series", "Shin-Etsu Silicone G-40 Series", "Shin-Etsu Silicone FG-720 Series", "Shin-Etsu Silicone G-411", "Shin-Etsu Silicone G-501", "Shin-Etsu Silicone G-6500", "Shin-Etsu Silicone G-330", "Shin-Etsu Silicone G-340", "Shin-Etsu Silicone G-350", and "Shin-Etsu Silicone G-630" (all manufactured by Shin-Etsu Chemical Co., Ltd.), "Molycoat (registered trademark) SH33L", "Molycoat (registered trademark) 41", "Molycoat (registered trademark) 44", "Molycoat (registered trademark) 822M", "Molycoat (registered trademark) 111", "Molycoat (registered trademark) high vacuum grease", and "Molycoat (registered trademark) heat diffusion compound" (all manufactured by Dow Corning Toray Co., Ltd.) are listed.

The lubricant solution may contain one type of lubricant or two or more types of lubricant.

In the present lubricant solution, the composition of the present azeotrope (like) composition (or the present liquid composition) and the lubricant is not particularly limited and can be appropriately selected as desired. For example, the lubricant is present in an amount of 0.1% by mass or more and 50% by mass or less relative to 100% by mass of the present lubricant composition, but is not limited to this.

The method of applying the lubricant solution to the surface of an article is not particularly limited. Examples include application with a brush, application with a spray, application by immersing the article in the lubricant solution, and application methods in which the lubricant solution is brought into contact with the inner wall of a tube or syringe needle by sucking up the lubricant solution.

The above-mentioned rust inhibitors, moisture-proof coating agents, and fingerprint inhibitors can be any conventionally known material. For example, rust inhibitors are substances that cover the surface of metals that are easily oxidized by oxygen in the air to cause rust, and that block the metal surface from oxygen, thereby preventing rusting of metal materials.

These rust inhibitors, moisture-proof coating agents, and fingerprint prevention agents can be dissolved in the solvent composition in the same manner as the lubricants described above to form a solution, which can then be applied to the surface of an article to which various functions are to be imparted in a similar manner to form a coating film, thereby producing an article with a coating film.

Items to which lubricants, rust inhibitors, moisture-proof coating agents, and fingerprint-preventing agents can be applied include items made of various materials such as metals, resins, elastomers, ceramics, and glass. Examples include, but are not limited to, industrial equipment in which fluorine-based lubricants are used, CD and DVD tray parts in personal computers and audio equipment, and home and office equipment such as printers and copy machines. In addition, they can be suitably used for syringe needles and cylinders, medical tube parts, and the like in which silicone-based lubricants are used.

The solvent composition or aerosol composition can also be used as a reaction solvent, extractant, drying agent, etc.

The present invention will be explained in more detail below with reference to examples, but the present invention is not limited to the following examples as long as it does not depart from the gist of the invention.

<Vapor-liquid equilibrium measurement>
[Example 1: Mixture of 1233zd(Z) and 3-methylpentane]
A mixed solution (400 g) of 1233zd(Z) and 3-methylpentane was charged into an Othmer-type gas-liquid equilibrium distillation apparatus, and the gas phase composition and liquid phase composition at the time of equilibrium were determined by gas chromatography. The measurement results are shown in Table 1 and Figure 1.

As shown in Table 1 and Figure 1, a mixed solution of 1233zd(Z) and 3-methylpentane forms an azeotropic (like) composition when it contains 99.9999% by mass to 80.0000% by mass of 1233zd(Z) and 0.0001% by mass to 20.0000% by mass of 3-methylpentane relative to the total amount of the mixed solution. Among these, it is particularly preferable to contain 99.9999% by mass to 90.0000% by mass of 1233zd(Z) and 0.0001% by mass to 10.0000% by mass of 3-methylpentane relative to the total amount of the mixed solution, since this results in smaller fluctuations in the liquid composition.

[Example 2: Mixture of 1233zd(Z) and 2,3-dimethylbutane]
Except for using 2,3-dimethylbutane instead of 3-methylpentane, the gas phase composition and liquid phase composition at the time when the equilibrium state was reached were determined by gas chromatography in the same manner as in Example 1. The measurement results are shown in Table 2 and FIG.

As shown in Table 2 and Figure 2, it can be seen that a mixed solution of 1233zd(Z) and 2,3-dimethylbutane forms an azeotropic (like) composition when it contains 99.9999% by mass to 75.0000% by mass of 1233zd(Z) and 0.0001% by mass to 25.0000% by mass of 2,3-dimethylbutane relative to the total amount of the mixed solution. Among these, it is particularly preferable to contain 99.9999% by mass to 85.0000% by mass of 1233zd(Z) and 0.0001% by mass to 15.0000% by mass of 2,3-dimethylbutane relative to the total amount of the mixed solution, since this results in smaller fluctuations in the liquid composition.

[Example 3: Mixture of 1233zd(Z) and industrial hexane]
The gas phase composition and liquid phase composition at the time of reaching the equilibrium state were determined by gas chromatography in the same manner as in Example 1, except that industrial hexane was used instead of 3-methylpentane. The measurement results are shown in Table 3. The industrial hexane used was, for example, a mixture of hexane isomers including 2,2-dimethylbutane (2,2-DMB), 2,3-dimethylbutane (2,3-DMB), 2-methylpentane (2-MP), 3-methylpentane (3-MP), n-hexane (n-Hex), and methylcyclopentane (MCP), and the composition (mass ratio) of the mixture was 2,2-DMB/2,3-DMB/2-MP/3-MP/n-Hex/MCP=5.7/5.5/5.8/5.8/64.3/12.6.

As shown in Table 3, a mixed solution of 1233zd(Z) and industrial hexane forms an azeotropic (like) composition when it contains 99.9999% to 85.0000% by mass of 1233zd(Z) and 0.0001% to 15.0000% by mass of industrial hexane relative to the total amount of the mixed solution. Among these, it is particularly preferable to contain 99.9999% to 95.0000% by mass of 1233zd(Z) and 0.0001% to 5.0000% by mass of industrial hexane relative to the total amount of the mixed solution, since this results in smaller fluctuations in the liquid composition.

[Example 4: Mixed solution of 1233zd(Z) and 2,2-dimethylbutane]
Except for using 2,2-dimethylbutane instead of 3-methylpentane, the gas phase composition and liquid phase composition at the time when the equilibrium state was reached were determined by gas chromatography in the same manner as in Example 1. The measurement results are shown in Table 4 and FIG.

As shown in Table 4 and Figure 3, a mixed solution of 1233zd(Z) and 2,2-dimethylbutane forms an azeotropic (like) composition when the mixed solution contains 99.9999% by mass to 60.0000% by mass of 1233zd(Z) and 0.0001% by mass to 40.0000% by mass of 2,2-dimethylbutane relative to the total amount of the mixed solution. Among these, when the mixed solution contains 99.9999% by mass to 65.0000% by mass of 1233zd(Z) and 0.0001% by mass to 35.0000% by mass of 2,2-dimethylbutane relative to the total amount of the mixed solution, the fluctuation in the liquid composition is particularly small, which is preferable.

[Example 5: Mixed solution of 1233zd(Z) and methylcyclopentane]
Except for using methylcyclopentane instead of 3-methylpentane, the gas phase composition and liquid phase composition at the time when the equilibrium state was reached were determined by gas chromatography in the same manner as in Example 1. The measurement results are shown in Table 5 and FIG.

As shown in Table 5 and Figure 4, a mixed solution of 1233zd(Z) and methylcyclopentane forms an azeotropic (like) composition when it contains 99.9999% to 85.0000% by mass of 1233zd(Z) and 0.0001% to 15.0000% by mass of methylcyclopentane relative to the total amount of the mixed solution. Among these, it is particularly preferable to contain 99.9999% to 90.0000% by mass of 1233zd(Z) and 0.0001% to 10.0000% by mass of methylcyclopentane relative to the total amount of the mixed solution, since the fluctuation in the liquid composition is smaller.

<Solubility of machining oil, cleaning performance>
The azeotropic (like) compositions of Examples 1 to 5 are suitable as cleaning agents for articles having various oils attached thereto, since they dissolve cutting oil, grinding oil, press processing oil, punching oil, rust preventive oil, refrigeration oil, compressor oil, turbine oil, and silicone oil well.

<Solubility and application performance of lubricant>
The azeotropic (like) compositions of Examples 1 to 5 dissolve mineral oil-based lubricants, synthetic oil-based lubricants, and silicone-based lubricants well and have sufficient quick-drying properties, making them suitable for forming a lubricant coating on the surface of an article.

<Solubility and application performance of rust-preventive oil>
The azeotropic (like) compositions of Examples 1 to 5 dissolve the rust-preventive oil well and have a sufficiently fast drying property, and therefore are suitable for forming a rust-preventive oil coating on the surface of an article.

Claims (24)

A solvent composition comprising an azeotrope-like composition comprising Z-1-chloro-3,3,3-trifluoropropene and methylcyclopentane ,
A solvent composition comprising 99.9999% by mass to 85.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% by mass to 15.0000% by mass of methylcyclopentane, based on the total amount of Z-1-chloro-3,3,3-trifluoropropene and methylcyclopentane . further comprising 3-methylpentane;
The solvent composition according to claim 1, comprising 99.9999% by mass to 80.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% by mass to 20.0000% by mass of 3-methylpentane based on the total amount of Z-1-chloro-3,3,3-trifluoropropene and 3-methylpentane. Further comprising 2,3-dimethylbutane,
The solvent composition according to claim 1, comprising 99.9999% by mass to 75.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% by mass to 25.0000% by mass of 2,3-dimethylbutane based on the total amount of Z-1-chloro-3,3,3-trifluoropropene and 2,3-dimethylbutane. further comprising 2,2-dimethylbutane;
The solvent composition according to claim 1, comprising 99.9999% by mass to 60.0000% by mass of Z-1-chloro-3,3,3-trifluoropropene and 0.0001% by mass to 40.0000% by mass of 2,2-dimethylbutane based on the total amount of Z-1-chloro-3,3,3-trifluoropropene and 2,2-dimethylbutane. The solvent composition according to claim 1, further comprising at least one selected from the group consisting of n-hexane, 2-methylpentane, and cyclopentane. The solvent composition according to claim 1, further comprising at least one selected from the group consisting of pentane, isopentane, benzene, and sulfur. The solvent composition according to claim 1, further comprising at least one solvent selected from the group consisting of hydrocarbons, alcohols, ketones, ethers, esters, chlorocarbons, hydrochlorofluorocarbons, hydrofluorocarbons, hydrofluoroethers, and hydrofluoroolefins. An aerosol composition comprising the solvent composition according to any one of claims 1 to 7 and a propellant gas. A cleaning agent comprising the solvent composition according to any one of claims 1 to 7 . A cleaning agent comprising the aerosol composition of claim 8 . A method for cleaning an article, comprising the step of contacting a soiled article to be cleaned with the cleaning agent according to claim 9 . A method for cleaning an article, comprising the step of contacting a soiled article to be cleaned with the cleaning agent according to claim 10 . A coating forming composition comprising the solvent composition according to any one of claims 1 to 7 and a non-volatile component. A coating forming composition comprising the aerosol composition according to claim 8 and a non-volatile component. A method for producing an article with a coating film, comprising applying the coating film-forming composition according to claim 13 to an article, and then removing the solvent composition by evaporation. A method for producing an article with a coating film, comprising applying the coating film-forming composition according to claim 14 to an article, and then removing the solvent composition by evaporation. A draining agent comprising the solvent composition according to any one of claims 1 to 7 . The draining agent according to claim 17 , further comprising an alcohol. A draining agent comprising the aerosol composition of claim 8 . The draining agent according to claim 19 , further comprising an alcohol. A rinse agent comprising the solvent composition according to any one of claims 1 to 7 . A rinse comprising the aerosol composition of claim 8 . A lubricant solution comprising the solvent composition according to any one of claims 1 to 7 and a lubricant. A lubricant solution comprising the aerosol composition of claim 8 and a lubricant.

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