JP6945258B2 - Solvent composition and cleaning aerosol composition containing it - Google Patents

Description

The present invention relates to a solvent composition and a cleaning aerosol composition containing the same.

Hydrofluoroolefins and the like are expected as next-generation fluorocarbon cleaning agents that have degreasing power and a global warming potential that is much smaller than that of HCFCs (hydrochlorofluorocarbons) and HFCs (hydrofluorocarbons). Patent Document 1 discloses a solvent composition obtained by adding a specific hydrofluorocarbon to these solvents.

Japanese Unexamined Patent Publication No. 2016-888963

However, according to the findings of the inventors, the solvent composition disclosed in Patent Document 1 is not always satisfactory in detergency or solubility in various oils.

An object of the present invention is to provide a solvent composition having excellent detergency or solubility in various oils.

The present invention has the following configurations.
[1] Hydrofluoroolefins which may contain one or more atoms selected from the group consisting of (A) (a1) chlorine atom and bromine atom, (a2) chlorofluoroolefins, and (a3) bromo. One or more solvents selected from the group consisting of fluoroolefins,
(B) A solvent composition containing one or more solvents selected from the group consisting of normal octane, isooctane, isononan, methylcyclohexane and ethylcyclohexane.
When the total amount of the composition is 100 parts by weight,
The content of (A) is more than 5 parts by weight and less than 95 parts by weight.
A solvent composition in which the content of (B) is more than 5 parts by weight and less than 95 parts by weight, and the total content of (A) and (B) is 90 parts by weight or more and 100 parts by weight or less.
[2] Hydrofluoroolefins which may contain one or more atoms selected from the group consisting of (A) (a1) chlorine atom and bromine atom, (a2) chlorofluoroolefins, and (a3) bromo. One or more solvents selected from the group consisting of fluoroolefins,
(B) One or more solvents selected from the group consisting of normal octane, isooctane, isononan, methylcyclohexane and ethylcyclohexane.
A solvent composition comprising (C) (c1) hydrofluorocarbons, (c2) hydrofluoroethers and one or more solvents selected from the group consisting of (c3) 1-methoxy-2-propanol.
When the total amount of the composition is 100 parts by weight,
The total content of (A) and (B) is more than 10 parts by weight and less than 100 parts by weight, and the total content of (A), (B) and (C) is 90 parts by weight or more and 100 parts by weight or less. Is a solvent composition.
[3] The solvent composition of [2], wherein the content of (B) is more than 5 parts by weight and 50 parts by weight or less when the total amount of the composition is 100 parts by weight.
[4] When (C) is one or more solvents selected from the group consisting of (c1) and (c2), and the total amount of the composition is 100 parts by weight, the above (c1) and (c2) The solvent composition of [2] or [3] having a total content of 38 parts by weight or more.
[5] (C) is one or more solvents selected from the group consisting of (c1) and (c2), and the content of (A) is 10 when the total amount of the composition is 100 parts by weight. By weight or more and 52 parts by weight or less, the content of (B) is 10 parts by weight or more and 35 parts by weight or less, and the total content of (A) and (B) is 35 parts by weight or more and 62 parts by weight or less. The solvent composition according to any one of [2] to [4], wherein the total content of (c1) and (c2) is 38 parts by weight or more and 65 parts by weight or less.
[6] When (C) is one or more solvents selected from the group consisting of (c1) and (c2) and the total amount of the composition is 100 parts by weight, the above (c1) and (c2) The solvent composition of [2] or [3], wherein the total content is more than 5 parts by weight and less than 38 parts by weight.
[7] (C) is 1,1,1,3,3-pentafluorobutane, methyl nonafluorobutyl ether, methyl nonafluoroisobutyl ether and 1,1,2,2-tetrafluoroethyl-2,2,2- The solvent composition according to any one of [2] to [6], which is one or more solvents selected from the group consisting of trifluoroethyl ether.
[8] (A) is cis-1-chloro-3,3,3-trifluoropropene, and (B) is one or more solvents selected from the group consisting of isooctane and isononane, and (C). The solvent composition according to any one of [2] to [7], wherein is 1,1,1,3,3-pentafluorobutane.
[9] When (C) is (c2) and the total amount of the composition is 100 parts by weight, the total content of (c2) is 28 parts by weight or more and less than 90 parts by weight, [2] or The solvent composition of [3].
[10] When (C) is (c2) and the total amount of the composition is 100 parts by weight, the content of (A) is 10 parts by weight or more and 55 parts by weight or less, and the content of (B) is Is 10 parts by weight or more and 35 parts by weight or less, the total content of (A) and (B) is 30 parts by weight or more and 72 parts by weight or less, and the total content of (c2) is 28 parts by weight or more and 65 parts by weight. The solvent composition according to any one of [2], [3] and [9], which is not more than parts by weight.
[11] (A) is cis-1-chloro-3,3,3-trifluoropropene, (B) is one or more solvents selected from the group consisting of isooctane and isononane, and (C). Is one or more solvents selected from the group consisting of methyl nonafluorobutyl ether, methyl nonafluoroisobutyl ether and 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, [ 2] The solvent composition according to any one of [7], [9] and [10].
[12] When (C) is (c3) and the total amount of the composition is 100 parts by weight, the content of (c3) is 15 parts by weight or more and less than 90 parts by weight, [2] or [3]. ] Solvent composition.
[13] The solvent composition of [1], wherein (B) is more than 5 parts by weight and 50 parts by weight or less when the total amount of the composition is 100 parts by weight.
[14] (A) is cis-1-chloro-3,3,3-trifluoropropene, (E) -1-chloro-2,3,3-trifluoropropene and (Z) -1-chloro-2 , 3, 3-The solvent composition according to any one of [1] to [13], which is one or more solvents selected from the group consisting of trifluoropropene.
[15] The solvent composition according to any one of [1] to [14], wherein (A) is cis-1-chloro-3,3,3-trifluoropropene and (B) is methylcyclohexane.
[16] The solvent composition according to any one of [1] to [15], further containing an alcohol-based solvent (excluding (c3) 1-methoxy-2-propanol).
[17] The solvent composition according to any one of [1] to [16], which is a cleaning agent for cleaning an object to be cleaned with oily stains and / or oil.
[18] The solvent composition according to any one of [1] to [17], which is a cleaning agent for removing oily stains and / or oil adhering to a polycarbonate resin or an ABS resin.
[19] The solvent composition according to any one of [1] to [18], which is a cleaning agent for cleaning the flux.
[20] Step (1A): Immersing the object to be cleaned in the solvent composition according to any one of [1] to [19] and Step (1B): Solvent composition according to any one of [1] to [19]. A cleaning agent for use in a method for cleaning an object to be cleaned, which comprises a step of generating steam containing the component (A) from the object and bringing the object to be cleaned into contact with the generated vapor containing the component (A). The solvent composition according to any one of [1] to [19].
[21] A cleaning aerosol composition containing the solvent composition according to any one of [1] to [19] and an injection gas.
[22] A cleaning method for cleaning by injecting the cleaning aerosol composition of [21].
In addition, the present invention has the following configurations.
[1a] The solvent composition of [1], wherein the total content of (A) and (B) is 95 parts by weight or more and 100 parts by weight or less.
[2a] The solvent composition of [2], wherein the total content of (A), (B) and (C) is 95 parts by weight or more and 100 parts by weight or less.
[3a] (C) is one or more solvents selected from the group consisting of (c1) and (c2), and when the total amount of the composition is 100 parts by weight, of (c1) and (c2). The solvent composition of [2a], which has a total content of 38 parts by weight or more.
[4a] (C) is one or more solvents selected from the group consisting of (c1) and (c2), and when the total amount of the composition is 100 parts by weight, of (c1) and (c2). The solvent composition of [2a], wherein the total content is more than 5 parts by weight and less than 38 parts by weight.
[5a] The solvent composition of [2a], wherein (C) is (c3) and the content of (c3) is 15 parts by weight or more and less than 90 parts by weight when the total amount of the composition is 100 parts by weight. thing.
[6a] The solvent composition of [3a], which is a cleaning agent for removing oily stains and / or oil adhering to a polycarbonate resin or an ABS resin.
[7a] The solvent composition according to any one of [1a] to [5a], which is a cleaning agent for cleaning an object to be cleaned with oily stains and / or oil.
[8a] Step (1A): A step of immersing the object to be cleaned in the solvent composition of [6a] or [7a], and a step (1B): Component (A) from the solvent composition of [6a] or [7a]. [6a] or [7a], which is a cleaning agent for use in a method for cleaning an object to be cleaned, which comprises a step of generating a steam containing the above-mentioned substance and bringing the object to be cleaned into contact with the generated steam containing the component (A). ] Solvent composition.

INDUSTRIAL APPLICABILITY The present invention provides a solvent composition having excellent detergency or solubility in various oils.

(Definition of terms)
"(A) Hydrofluoroolefins which may contain one or more atoms selected from the group consisting of (a1) chlorine atom and bromine atom, (a2) chlorofluoroolefins, and (a3) bromofluoroolefin. "One or more kinds of solvents selected from the group consisting of the same kind" may be referred to as "(A)" or "component (A)". The same applies to other components such as "(B) one or more solvents selected from the group consisting of normal octane, isooctane, isononan, methylcyclohexane and ethylcyclohexane".
With respect to a numerical range, "~" means to include the values at both ends. That is, "70 to 95 parts by weight" means "70 parts by weight or more and 95 parts by weight or less". In addition, "less than or equal to" means "same or less than", and "greater than or equal to" means "same or more".

[Solvent composition]
The solvent composition is a first solvent composition and a second solvent composition. In the present specification, the "first solvent composition" and the "second solvent composition" may be collectively referred to as a "solvent composition". "Excellent detergency or oil solubility" means at least excellent detergency or oil solubility in silicone oil, preferably solubility or detergency in various oils such as silicone oil, mineral oil, flux and the like. Means to be excellent.
According to the findings of the present inventors, it has been found that the safety and / or the drying property may be inferior depending on the type of hydrocarbon to be combined with the fluorine-based cleaning agent. That is, the solvent composition may not only be excellent in detergency or solubility in various oils, but also in safety and / or dryness.

(First solvent composition)
The first solvent composition may contain one or more atoms selected from the group consisting of (A) (a1) chlorine atom and bromine atom, and (a2) chlorofluoroolefins. And (a3) one or more solvents selected from the group consisting of bromofluoroolefins, and (B) one or more solvents selected from the group consisting of normal octane, isooctane, isononane, methylcyclohexane and ethylcyclohexane. When the total amount of the composition is 100 parts by weight, the content of the component (A) is more than 5 parts by weight and less than 95 parts by weight, and the content of the component (B) is more than 5 parts by weight and 95 parts by weight. It is less than parts, and the total content of the components (A) and (B) is 90 parts by weight or more and 100 parts by weight or less.

<(A) (a1) Hydrofluoroolefins which may contain one or more atoms selected from the group consisting of chlorine atom and bromine atom, (a2) chlorofluoroolefins, and (a3) bromofluoroolefin. One or more solvents selected from the group consisting of classes>
The component (A) is the main ingredient of the solvent composition. (A1) Hydrofluoroolefins (HFOs) which may contain one or more atoms selected from the group consisting of chlorine atom and bromine atom include carbon atom, fluorine atom and hydrogen atom as essential, and optionally. It is an olefin compound containing only a chlorine atom and / or a bromine atom. Examples of hydrofluoroolefins include cis-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd (Z)) and (E) -1-chloro-2,3,3-trifluoropropene (((). E) -1-Chloro-2,3,3-trifluoro-1-propene, HCFO-1233yd (E)), (Z) -1-chloro-2,3,3-trifluoropropene ((Z)- 1-Chloro-2,3,3-trifluoro-1-propene, HCFO-1233yd (Z)), 2-bromo-3,3,3-trifluoro-1-propene, 1,1-dichloro-3, Examples thereof include 3,3-trifluoropropene, 1,2-dichloro-3,3,3-trifluoropropene, 1-chloro-1,3,3-trifluoropropene and the like. The hydrofluoroolefin is preferably cis-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd (Z)). As commercially available products of hydrofluoroolefins, CELEFIN (registered trademark) 1233Z (HCFO-1233zd (Z)) (manufactured by Central Glass Co., Ltd.), AMOLEA (registered trademark) AS-300 (manufactured by AGC Co., Ltd.) ((E)- 1-Chloro-2,3,3-trifluoropropene (HCFO-1233yd (E)), (Z) -1-chloro-2,3,3-trifluoropropene (HCFO-1233yd (Z)) and stabilizers (Mixture)) and the like.

(A2) Chlorofluoroolefins are olefin compounds composed of only carbon atoms, fluorine atoms and chlorine atoms. Examples of chlorofluoroolefins include 1,1-dichloro-2,3,3,3-tetrafluoropropene (CFO-1214ya).

(A3) Bromofluoroolefins are olefin compounds composed of only carbon atoms, fluorine atoms and bromine atoms. Examples of bromofluoroolefins include 2-bromo-1,1,3,3,3-pentafluoropropene.

The component (A) is preferably hydrofluoroolefins which may contain one or more atoms selected from the group consisting of (a1) chlorine atom and bromine atom.
The component (A) may be one kind or a combination of two or more kinds, respectively. For example, the component (A) is one or two with hydrofluoroolefins which may contain one or more atoms selected from the group consisting of one or more (a1) chlorine atoms and bromine atoms. It may be a combination with more than one kind (a2) chlorofluoroolefins.
A plurality of isomers ((E) and (Z)) may be present in the component (A), but unless otherwise specified, either one isomer may be a mixture of both isomers. There may be. When the component (A) contains 1-chloro-2,3,3-trifluoro-1-propene, the 1-chloro-2,3,3-trifluoro-1-propene is, for example, (Z). It may contain 80% by weight or more of -1-chloro-2,3,3-trifluoro-1-propene. That is, the 1-chloro-2,3,3-trifluoro-1-propene is 80% by weight or more and less than 100% by weight of (Z) -1-chloro-2,3,3-trifluoro-1-propene. And (E) -1-chloro-2,3,3-trifluoro-1-propene may be composed of more than 0% by weight and 20% by weight or less.

<(B) One or more solvents selected from the group consisting of normal octane, isooctane, isononan, methylcyclohexane and ethylcyclohexane>
The component (B) is the main ingredient of the solvent composition. The component (B) is a component that imparts solubility in a wide range of oils to the composition. When the component (B) is composed of only hydrocarbons of 6 or less, the flash point is low, so that the safety of the obtained composition is low. Further, when the component (B) is composed of only 10 or more hydrocarbons, the drying property tends to be inferior. The boiling point of the component (B) is preferably more than 100 ° C. and 150 ° C. or lower from the viewpoint of higher safety and excellent drying property. Here, when the component (B) is a mixture, the boiling point of the component (B) means the boiling point of the mixture of the component (B). Further, it is particularly preferable that the component (B) is composed only of a component having a boiling point of more than 100 ° C. and 150 ° C. or lower from the viewpoint of higher safety and excellent drying property.
The component (B) may be one kind or a combination of two or more kinds.

<(D) Further ingredients>
The first solvent composition can contain (D) additional components other than the component (A) and the component (B) as long as the effects of the present invention are not impaired. Examples of such a component include (d1) an organic compound and (d2) other components.

<(D1) Organic compound>
Examples of the organic compound (d1) include halogen-based solvents and halogen-free organic solvents. The component (d1) can be used alone or as a mixture of a plurality of components.

<< Halogen solvent >>
The halogen-based solvent is a component that imparts flame retardancy to the solvent composition, and is a component that lowers the freezing point of the solvent composition. Examples of the halogen-based solvent include (c1) hydrofluorocarbons, (c2) hydrofluoroethers, and halogen-based solvents other than the components (c1) and (c2), which will be described later. Examples of the halogen-based solvent other than the component (c1) and the component (c2) include at least one selected from the group consisting of hydrochlorofluorocarbons, hydrochloroolefins, hydrobromocarbons, and halogenated alkynes. From the viewpoint of further enhancing the safety of the solvent composition, the halogen-based solvent is preferably a component that does not fall under the Specified Chemical Substance Hazard Prevention Regulations (Specialization Regulations) and the Organic Solvent Poisoning Prevention Regulations of the Industrial Safety and Health Act.

<<< Hydrochlorofluorocarbon >>>
Hydrochlorofluorocarbon (HCFC) is a compound consisting only of a carbon atom, a chlorine atom, a fluorine atom and a hydrogen atom, and is a compound having no unsaturated bond such as a carbon-carbon double bond. Examples of the hydrochlorofluorocarbon include dichloropentafluoropropane (1,1-dichloro-2,2,3,3,3-pentafluoropropane and 1,3-dichloro-1,1,2,2,3-penta). Fluoropropane, etc.), 1-chloro-2,2,3,3-tetrafluoropropane (HCFC-244ca), 2-chloro-3,3,3-trifluoropropane or 1-chloro-3,3,3- Examples include trifluoropropane. Examples of commercially available HCFC products include Asahi Clean AK225 (manufactured by AGC Inc.).

<<< Hydrochloroolefin >>>
A hydrochloroolefin is an olefin compound consisting only of a carbon atom, a chlorine atom and a hydrogen atom. Examples of the hydrochloroolefin include trans-1,2-dichloroethylene and the like.

<<< Hydrobromocarbon >>>
Hydrobromocarbon is a compound consisting only of carbon atoms, bromine atoms and hydrogen atoms. Examples of the hydrobromocarbon include normal propyl bromide (1-bromopropane) and the like.

<<< Halogenated alkyne >>>
The halogenated alkyne is a compound in which at least a part of hydrogen atoms of the alkyne is substituted with a halogen, and examples thereof include 1-chloro-3,3-difluoro-1-propyne.

<< Organic solvent without halogen >>
Examples of the halogen-free organic solvent include alcohol-based solvents, ketone-based solvents, ester-based solvents, ether-based solvents, nitrogen-containing solvents, epoxide-based solvents, and hydrocarbon-based solvents.

<<< Alcohol-based solvent >>>
Examples of the alcohol solvent include (c3) 1-methoxy-2-propanol, which will be described later, and an alcohol solvent other than (c3) (that is, an alcohol solvent (excluding (c3) 1-methoxy-2-propanol). ). Examples of the alcohol-based solvent other than the component (c3) include monoalcohol-based solvents, such as ethanol, methanol, 1-propanol, isopropyl alcohol, 1-butanol, isobutyl alcohol, phenoxyethanol, benzyl alcohol, diacetone alcohol, and 2 -Propin-1-ol and the like are preferable.

<<< Ketone solvent >>>
Examples of the ketone solvent include ketone compounds having one or more carbonyl groups, and acetone, methyl ethyl ketone, methyl propyl ketone, methyl isobutyl ketone, diisopropyl ketone, diisobutyl ketone, and cyclohexanone are preferable.

<<< Ester solvent >>>
Examples of the ester solvent include a monoester compound, an ester compound having two carbonyl groups and a cyclic ester, and examples thereof include methyl acetate, ethyl acetate, normal propyl acetate, isopropyl acetate, butyl acetate, sec-butyl acetate and methoxy acetate. Butyl, amyl acetate, soybean fatty acid methyl ester, methyl lactate, ethyl lactate, propyl lactate, dibasic acid ester, ethyl acetoacetate and γ-butyrolactone are preferred.

<<< Ether-based solvent >>>
Examples of the ether-based solvent include dipropyl ether, diisopropyl ether, tetrahydrofuran, methyl tetrahydrofuran, 4-methyltetrahydropyran, 1,2-dimethoxyethane (monoglyme), 1,4-dioxane, 1,3-dioxolane, and diethyl ether. , Diisobutyl ether, dibutyl ether, methyl cellosolve, ethyl cellosolve, isopropyl cellosolve. The ether solvent shall not contain a hydroxy group.

<<< Nitrogen-containing solvent >>>
As the nitrogen-containing solvent, a nitroalkane solvent, an amine solvent, N-methylpyrrole and the like are preferable. Examples of the nitroalkane solvent include nitromethane, nitroethane, nitropropane and the like. Examples of the amine solvent include n-propylamine, diisopropylamine, N-methylmorpholine and the like.

<<< Epoxide solvent >>>
As the epoxide solvent, 1,2-butylene oxide, epichlorohydrin, propylene oxide, cyclohexene oxide, cyclopentene oxide, pentene oxide, heptene oxide, octene oxide, alkyl glycidyl ether, alkyl glycidyl ester and the like are preferable.

<<< Hydrocarbon solvent >>>
The hydrocarbon-based solvent is composed of only carbon and hydrogen, may be linear or branched, may be cyclic or acyclic, and may have a carbon-carbon double bond (B). ) It is a hydrocarbon-based solvent other than the components. Hydrocarbon-based solvents other than the component (B) include hexane, isohexane, cyclohexane, normal heptane, isoheptane, limonene, 2-methyl-2-butene, 2-methyl-1-pentene, 2-methyl-2-pentene, and the like. Examples thereof include 3-ethyl-2-butene, 2,3-dimethyl-2-butene, 2,4,4-trimethyl-1-pentene and 2,4,4-trimethyl-2-pentene. The hydrocarbon solvent may be a synthetic product.

<< (d2) Other ingredients >>
The other components (d2) are not particularly limited as long as they are components commonly used in the field of solvent compositions of components other than the component (d1). (D2) Examples of other components include one or more selected from the group consisting of water, ultraviolet absorbers, antioxidants, rust inhibitors, antifoaming agents, surfactants, chelating agents and the like. The component (d2) can be used alone or as a mixture of a plurality of components.

Ultraviolet absorbers and antioxidants are components that improve the stability of solvent compositions during long-term storage and the like. Examples of the ultraviolet absorber include a benzotriazole-based ultraviolet absorber, a benzophenone-based ultraviolet absorber, and a hindered amine-based ultraviolet absorber. Examples of the antioxidant include phenol-based antioxidants, amine-based antioxidants, sulfur-based antioxidants, and phosphorus-based antioxidants.

Phenolic antioxidants include 2,6-di-t-butyl-4-methylphenol, triethylene glycol-bis [3- (3-t-butyl-5-methyl-4-hydroxyphenyl) propionate], 1 , 6-Hexanediol-bis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], 2,4-bis- (n-octylthio) -6- (4-hydroxy-3, 5-di-t-butylanilino) -1,3,5-triazine, pentaerythrityl-tetrakis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], 2,2-thio- Diethylenebis [3- (3,5-di-t-butyl-hydroxyphenyl) propionate], octadodecyl-3- [3,5-di-t-butyl-4-hydroxyphenyl] propionate], N, N- Hexamethylenebis (3,5-di-t-butyl-4-hydroxy-hydrocinnamide), 3,5-di-t-butyl-4-hydroxy-benzylphosphonate-diethyl ester, 1,3,5-trimethyl Examples thereof include -2,4,6-tris (3,5-di-t-butyl-4-hydroxybenzyl) benzene and 2,4-bis [(octylthio) methyl] -o-cresol.

Amine-based antioxidants include alkylated diphenylamine, tris- (3,5-di-t-butyl-4-hydroxybenzyl) -isocyanurate, N, N-di-sec-butyl-p-phenylenediamine, p- Examples thereof include phenylenediamine derivatives, 1,3,5-tris (4-t-butyl-3-hydroxy-2,6-dimethyl) isocyanurate. Sulfur-based antioxidants include 2,4-bis [(octylthio) methyl] -o-cresol, dilauryl-3,3-thiodipropionate, dimyristyl-3,3-diodipropionate, distearyl-3, 3-Thiodipropionate, pentaerythrityltetrakis (3-laurylthiopropionate), ditridecyl-3,3-thiodipropionate, 2-mercaptobenzimidazole, bis [2-methyl-4- (3-n) -Alkylthiopropionyloxy) -5-t-butylphenyl] sulfide and the like can be mentioned. Phosphorus-based antioxidants include tris-nonylphenylphosphine, triphenylphosphine, tris (2,4-di-t-butylphenyl) phosphite, tris (isodecyl) phosphite and the like.

Examples of the chelating agent include aminocarboxylic acid-based chelating agents, and hydroxyethylaminoacetic acid, hydroxyethyliminodiacetic acid, ethylenediaminetetraacetic acid, salts thereof and the like are preferable.

Examples of the rust preventive include cyclohexylamine, dicyclohexylamine and N, N-bis (2-hydroxyethyl) -N-cyclohexylamine. Examples of the surfactant include nonionic surfactants, higher alcohol ethylene oxide adducts, alkylphenol ethylene oxide adducts, fatty acid ethylene oxide adducts, higher alkylamine ethylene oxide adducts, fatty acid esters of sorbitol and sorbitan, and sho. Sugar fatty acid esters, silicone-based surfactants, fluorine-based surfactants, and the like are preferable.

Further components other than the above-mentioned components are not particularly limited as long as they are components commonly used in the field of solvent compositions, and can be used as appropriate.
The component (D) may be used alone or in combination of two or more, respectively. For example, the component (D) may be a combination of one or more (d1) components and one or more (d2) components.

<Preferable Embodiment of First Solvent Composition>
In the first solvent composition, the component (D) is particularly preferably an alcohol-based solvent (excluding (c3) 1-methoxy-2-propanol). When the component (D) is an alcohol solvent (excluding (c3) 1-methoxy-2-propanol), the base material (particularly polycarbonate) is used when cleaning the base material to which oil stains such as flux are attached. ) Can be further reduced.

In the first solvent composition, from the viewpoint of detergency or solubility, the component (A) is cis-1-chloro-3,3,3-trifluoropropene, and (E) -1-chloro-2,3. It is preferably one or more solvents selected from the group consisting of 3-trifluoropropene and (Z) -1-chloro-2,3,3-trifluoropropene.

In the first solvent composition, from the viewpoint of detergency or solubility, the component (A) is cis-1-chloro-3,3,3-trifluoropropene, and the component (B) is methylcyclohexane. Is preferable.

<Composition of the first solvent composition>
The content of each component when the total amount of the first solvent composition is 100 parts by weight is as follows.
The content of the component (A) is more than 5 parts by weight and less than 95 parts by weight, preferably 35 parts by weight or more and 88 parts by weight or less, and particularly preferably 45 parts by weight or more and 85 parts by weight or less.
The content of the component (B) is more than 5 parts by weight and less than 95 parts by weight, preferably 7 parts by weight or more and 60 parts by weight or less, and particularly preferably 10 parts by weight or more and 50 parts by weight or less. Further, from the viewpoint of excellent safety in addition to the viewpoint described later, the content of the component (B) may be more than 5 parts by weight and 50 parts by weight or less.
The total content of the component (A) and the component (B) is 90 parts by weight or more and 100 parts by weight or less, preferably 95 parts by weight or more and 100 parts by weight or less, and 97 parts by weight or more and 100 parts by weight or less. It is more preferable that the amount is 98 parts by weight or more and 100 parts by weight or less.
Within such a range, the solubility in oil is more excellent.

When the first solvent composition contains an alcohol-based solvent (however, excluding (c3) 1-methoxy-2-propanol), the alcohol-based solvent (when the total amount of the first solvent composition is 100 parts by weight) However, the content of (c3) 1-methoxy-2-propanol is more preferably 10 parts by weight or less from the viewpoint of reducing damage to plastics (preferably polycarbonate and ABS). It is preferably more than 0 parts by weight and 10 parts by weight or less, and particularly preferably 0.01 parts by weight or more and 8 parts by weight or less.

When the first solvent composition contains water, the content of water when the total amount of the first solvent composition is 100 parts by weight is 0.1 part by weight or less from the viewpoint of better solubility in oil. It is preferable that the amount is more than 0 parts by weight and 0.1 parts by weight or less.

(Second solvent composition)
The second solvent composition includes (A) (a1) hydrofluoroolefins which may contain one or more atoms selected from the group consisting of chlorine atoms and bromine atoms, and (a2) chlorofluoroolefins. And (a3) one or more solvents selected from the group consisting of bromofluoroolefins, and (B) one or more solvents selected from the group consisting of normal octane, isooctane, isononane, methylcyclohexane and ethylcyclohexane. , (C) (c1) Hydrofluorocarbons, (c2) Hydrofluoroethers and (c3) 1 or more solvents selected from the group consisting of 1-methoxy-2-propanol, and the total amount of the composition. Is 100 parts by weight, the total content of the components (A) and (B) is more than 10 parts by weight and less than 100 parts by weight, and the components (A), (B) and (C) are The total content of the solvent is 90 parts by weight or more and 100 parts by weight or less.

The second solvent composition can contain a second additional component (D') other than the component (A), the component (B) and the component (C) as long as the effects of the present invention are not impaired. Here, the component (D') is a component (D) other than the component (C). Further, the components (A), (B) and (D), including preferable ones, are as described above in the first solvent composition.

<One or more solvents selected from the group consisting of (C) (c1) hydrofluorocarbons, (c2) hydrofluoroethers and (c3) 1-methoxy-2-propanol>
The component (C) is a component that can be a main component of the solvent composition, like the components (A) and (B). The component (C) may be one kind or a combination of two or more kinds, respectively.

<< (c1) Hydrofluorocarbons >>
The component (c1) is a component that reduces the flammability of the solvent composition and damage to the base material. (C1) Hydrofluorocarbons (HFCs) are compounds composed of carbon atoms, fluorine atoms and hydrogen atoms, and do not have a carbon-carbon double bond. Examples of the hydrofluorocarbon include 1,1,1,3,3-pentafluorobutane (HFC-365mfc), 1,1,2,2,3,3,4-heptafluorocyclopentane (HFC-c447ef), and the like. 1,1,1,2,2,3,3,4,5,5,6,6-tridecafluorooctane can be mentioned. As a commercially available product of the component (c1), 1,1,1,3,3-pentafluorobutane is commercially available from Solcan (registered trademark) 365 mfc (manufactured by Nippon Solvay Co., Ltd.) 1, 1, 2, 2. , 3,3,4-Heptafluorocyclopentane includes Zeorora (registered trademark) H (manufactured by Nippon Zeon Corporation). The component (c1) may be one kind or a combination of two or more kinds.

<< (c2) Hydrofluoroether >>
The component (c2) is a component that reduces the flammability of the solvent composition and damage to the base material. (C2) Hydrofluoroethers (HFEs) are compounds composed of carbon atoms, fluorine atoms, hydrogen atoms and ether bonds (-O-). Examples of the hydrofluoroether include methyl nonafluorobutyl ether, methyl nonafluoroisobutyl ether, ethyl nonafluorobutyl ether, ethyl nonafluoroisobutyl ether, 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoro. Ethyl ether (also known as 1,1,2,2-tetrafluoro-1- (2,2,2-trifluoroethoxy) ethane, HFE-347pc-f), 1,1,1,2,2,3,4 , 5,5,5-decafluoro-3-methoxy-4- (trifluoromethyl) pentane, 1,1,1,2,3,3-hexafluoro-4- (1,1,2,3,3) , 3-Hexafluoropropoxy) pentane, 1,1,1,2,3,4,5,4-octafluoro-2-methoxy-3- (trifluoromethyl) butane, methylperfluoropropyl ether and the like. .. The component (c2) is one or more selected from the group consisting of methyl nonafluorobutyl ether, methyl nonafluoroisobutyl ether and 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether. It is preferable to have. As a commercial product of the component (c2), 3М (trademark) Novec (trademark) 7100 high-performance liquid, 3М (trademark) Novec (trademark) 7200 high-performance liquid, 3М (trademark) Novec (trademark) 7300 high-performance liquid. , 3М (trademark) Novec (trademark) 7000 high-performance liquid (manufactured by 3M Japan Co., Ltd.), Asahi Clean AE3000 (manufactured by AGC Co., Ltd.). The component (c2) may be one kind or a combination of two or more kinds.

<< (c3) 1-methoxy-2-propanol >>
The component (c3) is a component that imparts the dissolving power of a water-soluble oil to the composition. When the solvent composition contains the component (c3), the dissolving power of the oil can be further improved.

<Preferable embodiment of the second solvent composition>
In the second solvent composition, the component (C) is one or more solvents selected from the group consisting of the component (c1) and the component (c2), or the component (C) is the component (c3). It is preferable to have. When the component (C) is one or more solvents selected from the group consisting of the component (c1) and the component (c2), the flammability of the composition and damage to the base material can be further reduced. When the component (C) is the component (c3), the dissolving power of various oils including the water-soluble oil can be further improved. In addition, "one or more kinds of solvents selected from the group consisting of (c1) component and (c2) component" means (c1) component, (c2) component, and (c1) component and (c2) component. It means a combination with, and does not mean only a combination of the component (c1) and one or more kinds of components (c2).

Therefore, when the component (C) is one or more solvents selected from the group consisting of the component (c1) and the component (c2), the content of the component (c1) and the component (c2) described later may be used. Especially preferable. Further, when the component (C) is the component (c3), it is particularly preferable that the content of the component (c3) described later is the content.

In the second solvent composition, the component (D') is preferably an alcohol solvent (however, excluding (c3) 1-methoxy-2-propanol). When (D') is an alcohol solvent (excluding (c3) 1-methoxy-2-propanol), the base material (particularly polycarbonate) is used when cleaning the base material to which oil stains such as flux are attached. ) Can be further reduced.

In the second solvent composition, (C) is 1,1,1,3,3-pentafluorobutane, methyl nonafluoro from the viewpoint of acceptable damage to the plastic and / or safety. It is preferably one or more solvents selected from the group consisting of butyl ether, methyl nonafluoroisobutyl ether and 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether. The "damage to plastic" is preferably damage to polycarbonate and ABS. Further, the "viewpoint in which the damage to the plastic is tolerable" is preferably the viewpoint in which the damage to the plastic is reduced.

In the second solvent composition, (A) is cis-1-chloro-3 from the viewpoint of acceptable damage to the plastic and / or safety, and detergency or solubility. , 3,3-Trifluoropropene, (B) is one or more solvents selected from the group consisting of isooctane and isononane, and (C) is 1,1,1,3,3-pentafluorobutane. Is preferable.

In the second solvent composition, (A) is cis-1-chloro-3 from the viewpoint of acceptable damage to the plastic and / or safety, and detergency or solubility. , 3,3-Trifluoropropene, (B) is one or more solvents selected from the group consisting of isooctane and isononane, and (C) is methyl nonafluorobutyl ether, methyl nonafluoroisobutyl ether and 1, It is preferably one or more solvents selected from the group consisting of 1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether.

In the second solvent composition, from the viewpoint of detergency or solubility, (A) is cis-1-chloro-3,3,3-trifluoropropene, and (E) -1-chloro-2,3,3. It is preferably one or more solvents selected from the group consisting of -trifluoropropene and (Z) -1-chloro-2,3,3-trifluoropropene.

In the second solvent composition, from the viewpoint of detergency or solubility, it is preferable that (A) is cis-1-chloro-3,3,3-trifluoropropene and (B) is methylcyclohexane. ..

<Composition of the second solvent composition>
When the total amount of the second solvent composition is 100 parts by weight, the content of each component is as follows.
The total content of the component (A) and the component (B) is more than 10 parts by weight and less than 100 parts by weight, preferably 11 parts by weight or more and 90 parts by weight or less.
The content of the component (B) is preferably more than 5 parts by weight and 50 parts by weight or less from the viewpoint of excellent safety in addition to the viewpoint described later.
The total content of the component (A), the component (B) and the component (C) is 90 parts by weight or more and 100 parts by weight or less, preferably 95 parts by weight or more and 100 parts by weight or less, and 98 parts by weight or more. It is particularly preferably 100 parts by weight or less.
The content of the component (C) is preferably more than 0 parts by weight and less than 90 parts by weight.
The content of the component (A) is preferably 40 parts by weight or more and 94 parts by weight or less, and 50 parts by weight or more and 90 parts by weight or less, based on 100 parts by weight in total of the contents of the component (A) and the component (B). It is more preferable that the amount is 50 parts by weight or more and less than 90 parts by weight.
Within such a range, the solubility in oil is more excellent.

Further, when the total amount of the second solvent composition is 100 parts by weight, the total content of the component (c1) and the component (c2) is 38% by weight from the viewpoint that damage to the plastic is acceptable. More preferably, it is more than 40 parts by weight and less than 90 parts by weight, and particularly preferably 40 parts by weight or more and less than 80 parts by weight. Therefore, the component (C) is one or more solvents selected from the group consisting of the component (c1) and the component (c2), and when the total amount of the composition is 100 parts by weight, the component (A) is contained. The amount is 10 parts by weight or more and 52 parts by weight or less, the component (B) is 10 parts by weight or more and 35 parts by weight or less, and the total content of the components (A) and (B) is 35 parts by weight or more and 62 parts by weight. It is particularly preferable that the total content of the component (c1) and the component (c2) is 38 parts by weight or more and 65 parts by weight or less.

Further, when the total amount of the second solvent composition is 100 parts by weight, the total content of the components (c1) and (c2) is 5 parts by weight or more from the viewpoint of reducing damage to the capsule. It is more preferably 38 parts by weight or less, further preferably more than 5 parts by weight and less than 38 parts by weight, and particularly preferably 6 parts by weight or more and 20 parts by weight or less. Further, the total content of the component (c1) and the component (c2) when the total amount of the second solvent composition is 100 parts by weight may be 5 parts by weight or more and 30 parts by weight or less.

In the second solvent composition, when the component (C) is the component (c2), the content of the component (c2) is 28 parts by weight or more when the total amount of the second solvent composition is 100 parts by weight. More preferably, it is less than 90 parts by weight.

In the second solvent composition, when the component (C) is the component (c2), the content of the component (A) is 10 parts by weight or more and 55 parts by weight or less when the total amount of the composition is 100 parts by weight. The content of the component (B) is 10 parts by weight or more and 35 parts by weight or less, and the total content of the component (A) and the component (B) is 30 parts by weight or more and 72 parts by weight or less, (c2). ) The total content of the components is particularly preferably 28 parts by weight or more and 65 parts by weight or less.

Further, when the total amount of the second solvent composition is 100 parts by weight, the content of the component (c3) is 15 parts by weight or more and less than 90 parts by weight from the viewpoint of excellent dissolving power in water-soluble oil. Is more preferable, and it is particularly preferable that the amount is 20 parts by weight or more and 40 parts by weight or less.

When the second solvent composition contains an alcohol-based solvent (excluding (c3) 1-methoxy-2-propanol), the amount of the alcohol when the total amount of the second solvent composition is 100 parts by weight. The content is more preferably 10 parts by weight or less, preferably more than 0 parts by weight and 10 parts by weight or less, and 0.01 part by weight or more, from the viewpoint that the damage property to the plastic is acceptable. It is particularly preferable that the amount is 8 parts by weight or less.
When the second solvent composition contains water, the water content when the total amount of the second solvent composition is 100 parts by weight is 0.1 part by weight or less from the viewpoint of better solubility in oil. It is preferable that the amount is more than 0 parts by weight and 0.1 parts by weight or less.

<Further aspects of the first and second solvent compositions>
The first and second solvent compositions preferably do not contain the following solvent compositions.
One or more solvents selected from the group consisting of (A) -1-chloro-2,3,3-trifluoropropene and (Z) -1-chloro-2,3,3-trifluoropropene. And (B), a solvent composition containing one or more solvents selected from the group consisting of ethylcyclohexane and isononane, and (A) and (A) and (A) and (B) when the total amount of the composition is 100 parts by weight. A solvent composition having a total content of B) of 70 parts by weight or more and 100 parts by weight or less (hereinafter, also referred to as “third solvent composition”).
Further, it is preferable that the first and second solvent compositions do not further contain the "third solvent composition containing hydrofluoroether".

[Manufacturing method of solvent composition]
The method for producing the solvent composition is arbitrary. The raw material component contained in the solvent composition can be produced by a known method by appropriately selecting stirring, mixing, dissolution, dispersion and the like.

[Use of solvent composition]
The solvent composition can be used as an oil dissolving agent (that is, a solvent composition for diluting oil), an oil coating agent, a cleaning agent for cleaning an object to be cleaned with oily stains and / or oil, and the like.

(Oil dissolving agent)
Examples of the oil include mineral oil, vegetable oil, animal oil, heavy oil, resin (resin), wax, silicone oil, fluorine oil and the like. These oils may be used as, for example, cutting oil, pressing oil, drawing oil, heat treatment oil, rust preventive oil, lubricating oil, metalworking oil, grease, flux, asphalt, and water-soluble oil.

The mineral oil is not particularly limited, and a commercially available product includes pulley SF oil (manufactured by Idemitsu Kosan Co., Ltd.). Examples of vegetable oils include olive oil, flaxseed oil, millet oil, sesame oil, safflower oil, soybean oil, castor oil, cottonseed oil, palm oil, corn oil and dehydrated castor oil. The fatty acids constituting the vegetable oil are saturated or unsaturated fatty acids of C12 to C18, and specifically, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, and eleostearic acid. And so on. Examples of animal oils include fish oil, whale oil, lard, and beef tallow. Examples of heavy oil include asphaltene and the like. Examples of the resin include pitch, pine fat and the like. Examples of the wax include plant-based, animal-based, petroleum-based, and synthetic hydrocarbon-based waxes.

Silicone oil is a silicone oil that is a linear polymer composed of siloxane bonds, and mainly has a carboxyl group, an amino group, a polyether group, an epoxy group, or the like on the side chain or the terminal of the dimethyl silicone oil or the methylphenyl silicone oil. Other organic groups may be introduced. Specific examples of such silicone oil include dimethylpolysiloxane, methylphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, polyoxyethylene-methylpolysiloxane, and the like. Examples of such silicone oils include KF-96L-2CS and KF-6012 manufactured by Shin-Etsu Chemical Co., Ltd. as commercially available products.

Fluorine oil is a substance in which a part or all of hydrogen atoms in a polyalkyl ether compound is replaced with fluorine, and may contain additional atoms such as halogens such as chlorine and bromine, phosphorus, sulfur, and nitrogen. .. Commercially available products of fluorine oil include, for example, Fomblin Y-LVAC, Y-HVAC, Y04, and YR manufactured by Solvaisolexis Co., Ltd .; Examples thereof include J400 Fluid, Varierta J25V, Varierta SJ07, Varierta SJ15, and Varierta SJ30; Critex 1506 and Critex 1514 manufactured by DuPont Co., Ltd .; and Demnum S-20 manufactured by Daikin Industries, Ltd.

Water-soluble oils are roughly classified into emulsion type, soluble type, and solution type. The emulsion type contains water-insoluble oil such as mineral oil and fatty oil and a surfactant as main components, and forms a milky white emulsion when diluted with water. The soluble type also contains water-insoluble oil and surfactant, but becomes transparent to translucent when diluted with water. The solution type contains a water-soluble inorganic salt or the like as a main component, and becomes transparent when diluted with water. There is also an emulsion type silicone oil in which silicone oil, a surfactant and water are mixed.

Examples of the flux include rosin-based flux. The rosin-based flux is an inactive rosin flux containing rosins (resinic acid containing abietic acid as a main component) and rosins such as modified rosin as main components; the rosins and an inorganic acid salt of an amine compound (for example, hydrochloride). , Sulfate) and an active rosin flux containing one or more activators selected from the group consisting of organic acids as main components. Examples of the inorganic acid salt of the amine compound include triethanolamine hydrochloride, triethylenetetraamine hydrochloride, cyclohexylamine hydrochloride, and aniline hydrochloride. Examples of the organic acid include carboxylic acids (including dicarboxylic acids) such as succinic acid, adipic acid, glutaric acid, sebacic acid and maleic acid; and oxyacids (hydroxycarboxylic acids).

Further, the flux may be provided in the form of a cream solder in which a metal for soldering and a rosin flux are integrated. The cream solder is a composition containing a solder alloy powder, a resin, an activator, an antioxidant, a thixant, and a solvent, and is composed of a so-called metal powder and a flux component.

(Oil coating agent)
The oil coating agent is a composition in which oil is dissolved in the first and second solvent compositions. An oil coating film can be formed by applying an oil coating agent to a substrate (for example, coating) and removing the solvent portion of the oil coating agent (for example, volatilizing). The oil content in the oil coating agent is preferably equal to or less than the saturated dissolved amount of the oil. With such an oil content, there is no undissolved oil and a homogeneous coating can be obtained.

(Washing soap)
Since the first and second solvent compositions are excellent in oil solubility, they can also be used as a cleaning agent for cleaning an object to be cleaned to which oily stains and / or oil (for example, flux) are attached.

Examples of the oil that is a raw material for oily stains include the above-mentioned oils. Examples of oily stains include non-polar oily stains, oily stains due to polar components, and oily stains due to a plurality of components having different polarities, depending on the polarity of these oils.

Further, the flux stain includes rosin which is a flux component, an inorganic acid salt of an amine compound, an organic acid, and a component in which the component is partially altered or carbonized by reflow at a high temperature. Further, the stains on the cream solder include stains on the flux component and metal powder.

(Aerosol composition for cleaning)
The cleaning aerosol composition contains a solvent composition and a propellant gas. The aerosol composition maintains its state as a solution without volatilizing the solvent composition immediately after injection. Then, the aerosol composition after injection becomes fine droplets and does not spread over a wide range, but the atomized solvent composition can be concentrated and delivered to a narrow range. That is, the solvent composition can be applied to a portion to be cleaned from a long distance. Then, it is possible to prevent the solvent composition from coming into contact with the base material of the object to be cleaned, and to efficiently clean the metal portion of the object to be cleaned.

The propellant gas, compressed air, _{N 2, argon,} CO 2, one or more can be mentioned which is selected from the group consisting of LPG. The form of the injected gas is not particularly limited, and examples thereof include liquefied gas and compressed gas. From the viewpoint of suppressing the rapid volatilization of the solvent composition, it is preferable that the solvent composition is at least one selected from the group consisting of _{compressed air, N 2} , argon and CO _2.

The method for producing an aerosol composition for cleaning is not particularly limited. For example, a method in which an aerosol composition in which a solvent composition and a liquid jet gas are mixed is filled in a pressure-resistant can to form an aerosol, or a method in which the solvent composition is placed in a container is used. Examples thereof include a method in which compressed air is filled in a container using an air compressor or the like after being added to (for example, a pale can) to make the solvent composition aerosol. In addition, for the cleaning aerosol composition, the description in JP-A-2018-105723 can be referred to.

(Washing method)
A method of cleaning an object to be cleaned using the solvent composition includes contacting the solvent composition with the object to be cleaned (that is, a substrate to which oily stains and / or oil is attached). In the cleaning method, by bringing the composition into contact with the object to be cleaned, oily stains and / or oil adhering to the base material are removed from the base material. When the oil-based stain contains solid stains such as dust and dirt, the solid stain can be removed at the same time as the oil-based stain is removed.

The base material is not particularly limited, and examples thereof include metal, fiber, glass, pottery, plastic, and capsules. Examples of the metal include iron, aluminum, copper and stainless steel. Examples of the plastic include epoxy resin, acrylic resin, polycarbonate resin, silicone resin, ABS resin (acrylonitrile, butadiene, styrene resin) and the like. Examples of the raw material for the capsule include gelatin, hydroxypropyl methylcellulose and the like. The capsule may contain glycerin as a plasticizer, titanium dioxide as a colorant, and the like.

The method for bringing the solvent composition into contact with the object to be cleaned is not particularly limited, and for example, hand wiping cleaning, immersion cleaning (liquid phase cleaning), spray cleaning (including spraying with a cleaning aerosol composition), Shower cleaning, ultrasonic cleaning, steam cleaning (gas phase cleaning) and combinations thereof include hand wiping cleaning, immersion cleaning, steam cleaning, spray cleaning (including spray cleaning by spraying an aerosol composition for cleaning), and A combination of immersion cleaning and steam cleaning is preferred. Hand-wiping cleaning is usually performed by rubbing a paper, cloth, etc. impregnated with the composition by hand while contacting an area with oily stains and / or oil, or a paper, cloth, etc. impregnated with the composition. Is carried out by rubbing by hand through a plate or a rod while contacting the area where oily stains and / or oils have adhered. Spray cleaning by spraying the cleaning aerosol composition is performed by spraying the cleaning aerosol composition as an aerosol on an area to which oily stains and / or oil are attached.

When the cleaning method of the object to be cleaned using the solvent composition is a combination of immersion cleaning and steam cleaning, specifically, step (1A): a step of immersing the object to be cleaned in the solvent composition and a step. (1B): A cleaning method including a step of generating steam containing the component (A) from the solvent composition and bringing the object to be cleaned into contact with the generated steam containing the component (A) can be mentioned.

The step (1A) is a step of immersing the object to be cleaned in the solvent composition. In step (1A), the object to be cleaned comes into contact with the solvent composition. In order to enhance the cleaning effect, it is preferable to combine means such as heating, stirring, shaking, ultrasonic vibration, or air bubbling at the same time as immersion. The immersion cleaning time is not particularly limited as long as it is a time during which oily stains and / or oil adhering to the object to be cleaned can be washed and removed. By step (1A), oily stains and / or oil are removed from the object to be cleaned. The step (1A) may consist of a plurality of washing tanks.

The step (1B) is a step of generating steam containing the component (A) from the solvent composition and bringing the object to be cleaned into contact with the generated vapor containing the component (A). If the solvent composition is an azeotropic composition, the "steam containing (A)" is the vapor of the solvent composition. If the solvent composition is not an azeotropic composition, the solvent composition is heated so that steam containing at least (A) is generated. In step (1B), steam cleaning is performed by bringing the object to be cleaned into contact with steam generated from the solvent composition. The steam cleaning time is not particularly limited, but can be 1 second or more and 60 minutes or less. As a result, the solvent composition and the dirt component adhering to the object to be cleaned are exchanged with the vapor phase component. Further, in the step (1B), since the object to be cleaned and (A) come into contact with each other, rinsing (steam rinsing) is performed by the step of steam cleaning.

As an apparatus used for a method of cleaning an object to be cleaned by such a combination of immersion cleaning and steam cleaning, for example, a cleaning agent disclosed in Japanese Patent Application Laid-Open No. 2015-217319 is stored and the object to be cleaned is immersed. A cleaning device having a cleaning tank and a steam tank for generating steam of a cleaning agent can be mentioned. Here, the cleaning agent used in the cleaning tank and the cleaning agent used in the steam tank may be the same or different. Further, the vapor of the cleaning agent may be generated from the washing tank. In this case, the cleaning tank also serves as a steam tank. Further, in this case, the solvent composition contained in the washing tank is heated so that at least the component (A) is in a boiling state.

The cleaning time corresponding to the contact time between the solvent composition and the object to be cleaned is not particularly limited as long as it is a time during which oily stains and / or oil can be removed from the substrate. For example, the cleaning time may be 10 seconds or more and 2 hours or less.

The cleaning agent is preferably a cleaning agent for use in a cleaning method including the above-mentioned steps (1A) and (1B).

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples. Unless otherwise specified, the parts are parts by weight.

(Product used)
The components used in the examples are as follows. The compositions of Examples and Comparative Examples were prepared by using the following solvents as they were or by mixing each solvent according to the composition (part by weight) in the table.

1. 1. (A) Hydrofluoroolefins which may contain one or more atoms selected from the group consisting of (a1) chlorine atom and bromine atom, (a2) chlorofluoroolefins, and (a3) bromofluoroolefins. One or more solvents (a-1) cis-1-chloro-3,3,3-trifluoropropene (manufactured by Central Glass Co., Ltd., CELEFIN® 1233Z, HCFO-1233zd) selected from the group consisting of Z)))
(A-2) AMOLEA® AS-300 ((E) -1-chloro-2,3,3-trifluoropropene and (Z) -1-chloro-2,3,3-trifluoropropene 99 Mixture of more than% by weight and less than 1% by weight of stabilizer) (manufactured by AGC Inc.)

2. (B) One or more solvents (b-1) isooctane selected from the group consisting of normal octane, isooctane, isononan, methylcyclohexane and ethylcyclohexane (isooctane manufactured by Sankyo Chemical Co., Ltd.)
(B-2) Methylcyclohexane (manufactured by Sankyo Chemical Co., Ltd., methylcyclohexane)
(B-3) Ethylcyclohexane (manufactured by Sankyo Chemical Co., Ltd., ethylcyclohexane)
(B-4) Isononane (KH Neochem Co., Ltd., Kyowazole C-900, Isononane 95% by weight or more and 99.5% by weight or less, Normal Nonane 0.5% by weight or less))
(B-5) Normal Octane (manufactured by Tokyo Chemical Industry Co., Ltd., n-Octane)
(B-6) Daphne Alpha Cleaner L (manufactured by Idemitsu Kosan Co., Ltd., isooctane 80% by weight or more and less than 90% by weight, isononan 1% by weight or more and less than 10% by weight, isoheptane 1% by weight or more and less than 10% by weight, hexane 1% by weight More than 10% by weight, less than 1% by weight of synthetic hydrocarbons)

3. 3. One or more solvents (c1-1) 1,1,1 selected from the group consisting of (C) (c1) hydrofluorocarbons, (c2) hydrofluoroethers and (c3) 1-methoxy-2-propanol. , 3,3-Pentafluorobutane (manufactured by Nippon Solvay Co., Ltd., SOLKANE (registered trademark) 365 mfc)
(C2-1) 1,1,2,2-Tetrafluoroethyl-2,2,2-trifluoroethyl ether (AGC Co., Ltd., Asahiclean AE-3000)
(C2-2) A mixture of 20 parts by weight or more and 80 parts by weight or less of methyl nonafluorobutyl ether and 20 parts by weight or more and 80 parts by weight or less of methyl nonafluoroisobutyl ether (manufactured by 3M Japan Ltd., 3М ™ Novec ™ 7100 high Functional liquid)
(C3-1) 1-methoxy-2-propanol (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.)

4. (D) additional component other than (C) ((D') second further component)
(D-1) Ethanol (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.)
(D-2) Isopropyl alcohol (manufactured by Tokyo Chemical Industry Co., Ltd.)
(D-3) Acetone (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.)
(D-4) γ-Butyrolactone (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.)
(D-5) Isohexane (manufactured by Sankyo Chemical Co., Ltd.)
(D-6) Cyclohexane (manufactured by Tokyo Chemical Industry Co., Ltd.)
(D-7) Cyclopentane (manufactured by Tokyo Chemical Industry Co., Ltd.)
(D-8) Pentane (manufactured by Tokyo Chemical Industry Co., Ltd.)
(D-9) Decan (manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.)
(D-10) Solmix AP-1 (manufactured by Japan Alcohol Trading Co., Ltd., ethanol 85.5% by weight, 2-propanol 13.4% by weight, methanol 1.1% by weight, water content 0.2% by weight or less)

5. Oil (1) Mineral oil (1): Standard solution for viscometer calibration JS 2000 (manufactured by Nippon Grease Co., Ltd.) 100% by weight of base oil (of which 80% by weight or more and 90% by weight or less of mineral oil)
(2) Mineral oil (2): Pulley SF oil (manufactured by Idemitsu Kosan Co., Ltd.) Petroleum hydrocarbons (of which 90% by weight or more and less than 100% by weight of mineral oil, less than 10% by weight of lubricating oil additive, 2,6-di- (3% by weight of tertiary butyl-4-cresol)
(3) Vegetable oil: Edible olive oil (AJINOMOTO Olive Oil Extra Virgin, manufactured by J-Oil Mills Co., Ltd.)
(4) Silicone oil (1): Dimethyl silicone oil 350CS (Dow Corning Toray Co., Ltd., DOWN CORNING (registered trademark) 360 MEDICAL FLUID)
(5) Silicone oil (2): Polyether-modified silicone oil (manufactured by Shin-Etsu Chemical Co., Ltd., KF-6012)
(6) Silicone oil (3): Emulsion type silicone release agent (Momentive Performance Materials Japan GK, TSM632) The silicone oil (3) is a water-soluble oil.

Test Example 1: Oil dissolution test 0.15 g of oil was placed in a test tube (capacity: 4 ml, 10 × 75 mm, manufactured by PYREX®). Subsequently, 3 g of the solvent composition heated to 30 ° C. was placed in a test tube. The oil solubility was evaluated by observing the state of the oil when it was stirred 10 times using a Pasteur pipette.
◯: The oil could be dissolved in the solvent composition, resulting in a transparent and uniform solvent composition.
X: Since the oil could not be dissolved in the solvent composition, the oil was immediately separated into two layers or became cloudy.

Test Example 2: Safety test 10 g of each composition was placed in a SUS cup (cylindrical shape having a diameter of 65 mm, a bottom surface of 48 mm, and a height of 35 mm). The safety was evaluated by observing the state of combustion of each composition when the flames of the ignition rod (manufactured by Linstock Co., Ltd., Fire Starter Long) were brought close to each other twice in succession.
◯: Each composition ignited and burned, but the flames were extinguished within 10 seconds both times.
X: Each composition ignited and continued to burn, and the flame continued to burn at least once without extinguishing after 10 seconds.

Test Example 3: Silicone oil cleaning test (1)
A SUS304 plate (manufactured by Iwata Seisakusho Co., Ltd., 35 mm × 15 mm × 0.1 mm) was immersed in silicone oil (1) and pulled up after 5 minutes to prepare a cleaning test sample. The wash test sample was placed in a 100 mL beaker containing 50 mL of the composition heated to 39-40 ° C. and was withdrawn from the liquid after 1 minute. Then, as a rinse wash, it was put into a 100 mL beaker containing 50 mL of the same composition at 20 ° C. (normal temperature), and after 1 minute, it was pulled out of the liquid and air-dried, and then the state of the SUS304 plate was observed. The cleanability was evaluated.
◯: It was able to be cleaned.
X: Silicone oil (1) remained on the surface, or oil stains occurred.

Test Example 4: Silicone oil cleaning test (2)
A piece of polycarbonate resin (manufactured by Hikari Co., Ltd., 30 mm x 10 mm x 0.5 mm) was immersed in silicone oil (silicone oil (1) or silicone oil (2)) and pulled up after 5 minutes as a cleaning test sample. .. The cleaning test sample was placed in a 100 mL beaker containing 50 mL of each solvent composition heated to 39-40 ° C., and was withdrawn from the liquid after 1 minute. Then, as a rinse wash, it was put into a 100 mL beaker containing 50 mL of a solvent composition having the same composition as the first time at 20 ° C. (normal temperature), and after 1 minute, it was pulled out of the liquid and air-dried, and then the state of the polycarbonate resin piece was observed. Then, the detergency and the presence or absence of damage to the polycarbonate resin were evaluated as follows.
(Cleanability)
◯: It was able to be cleaned.
X: Silicone oil remained on the surface, or oil stains occurred.
(Damage to polycarbonate resin)
⊚: The transparency of the resin is not lost, and there is no external damage such as cracks.
◯: The transparency of the resin is lost, but the shape is not affected.
X: The resin is whitened and the surface becomes powdery, and the resin pieces become ragged.

Test Example 5: Capsule cleaning test (1)
(1) Preparation of sample One capsule (encapsulation agent: gelatin, glycerin) of multivitamin (manufactured by DHC Corporation) was used. A notch was made in the capsule, and the contents of the capsule (main component: vegetable oil) were removed to obtain a sample for a washing test. The contents of the capsule were attached to the inner wall of the capsule.
(2) Washing test 5 g of each composition was placed in a sample bottle (capacity: 13 ml). The sample prepared in (1) was put. The sample bottle was shaken 10 times to wash the sample. The sample was taken out from the sample bottle and dried. It was confirmed that the sample had no residue of the contents.
◯: No residue ×: With residue (3) Coloring test 5 g of Asahiclean AK-225 (manufactured by AGC Inc.) was placed in a sample bottle. The capsule washed in (2) was put in, and the detergency was evaluated based on the colored state of AK-225. Since AK-225 is colorless, the amount of the colorant attached to the capsule indicates that the coloration of AK-225 decreases in the order of orange (more) → yellow → colorless (less). (2) Cleaning test It shows that it is excellent in detergency.
◎: Colorless ○: Yellow ×: Orange

Test Example 6: Capsule cleaning test (2)
Capsules are Cellulose White Capsule No. 5 (1000 capsules) (Matsuya Co., Ltd., Gelatin processed food (capsule)) (Capsule composition: Hydroxypropyl methylcellulose 89.2% by weight, water 6.5% by weight, titanium dioxide 2% by weight %, 1.3% by weight of carrageenan, 1% by weight of potassium chloride). The receipt of one capsule before the test was measured three times using a balance (manufactured by Shimadzu Corporation, TX323N). A 5 g solvent was placed in a sample bottle (capacity 13 ml). One capsule was immersed for 1 hour. The capsule was removed from the sample bottle. The removed capsules were placed in a sample bottle containing 4 g of 1,1,1,3,3-pentafluorobutane and immersed for 1 hour. Then, the capsule was taken out and dried. The weight of the dried capsule was measured three times using a balance, and the damage property to the capsule was evaluated according to the following criteria.
⊚: No change ○: Change of less than 30% ×: Change of 30% or more

Test Example 7: Dryness test (1)
0.1 g of each solvent composition was weighed on a glass petri dish (manufactured by Sekiya Rika Co., Ltd., outer diameter 32 mm, height 15 mm), and left at 20 ° C. to measure the time until it was completely dried.
◯: Dried in less than 5 minutes ×: It took more than 5 minutes to dry

Test Example 8: Flux cleaning test (1)
(1) Preparation of cleaning test sample A rosin-based flux (HAKOO-001 Hakukou Co., Ltd. product) is applied to a zinc-coated iron plate (equivalent to JIS G3302, length 30 mm, width 20 mm, thickness 0.3 mm), and a hot plate at about 180 ° C. Was fired for 10 minutes, further cooled to room temperature (26 ° C.), and left at room temperature for 10 days to obtain a cleaning test sample (object to be cleaned with rosin-based flux stains).

(2) Cleaning test 20 g of a cleaning solvent composition was placed in a beaker, sealed with aluminum foil, adjusted to a liquid temperature of 39 to 40 ° C., and a cleaning test sample was immersed. After 3 minutes, the test sample was taken out from the beaker, air-dried, and then the degree of whiteness was judged by visual judgment.
◯: There is no white residue.
X: There is a white residue.

(3) Polycarbonate damage test A polycarbonate resin piece (manufactured by Hikari Co., Ltd., 30 mm x 10 mm x 0.5 mm) was placed in a 100 mL beaker containing 50 mL of each solvent composition heated to 39 to 40 ° C., and the liquid was placed 1 minute later. I pulled it up from inside. Then, as a rinse wash, it was put into a 100 mL beaker containing 50 mL of a solvent composition having the same composition as the first time at 20 ° C. (normal temperature), and after 1 minute, it was pulled out of the liquid and air-dried, and then the state of the polycarbonate resin piece was observed. Then, the presence or absence of damage to the polycarbonate resin was evaluated based on the following four criteria as follows.
◎: The transparency of the resin is not lost, and there is no external damage such as cracks.
〇 to ◎: The resin turns pale white and loses its transparency, but it does not affect the shape.
〇: The resin turns dark white and the transparency is lost, but the shape is not affected.
X: The resin is whitened and the surface becomes powdery, and the resin pieces become ragged.

When flux cleaning is performed, the substrate on which plastic parts such as polycarbonate are mounted may be cleaned. Therefore, it is desirable that there is less damage. Here, the substrate after cleaning becomes turbid, but if the shape of the substrate does not change, the substrate after cleaning may be sufficiently durable for use. Therefore, in the (3) polycarbonate damage test of Test Example 8, it was determined that "○", "○ to ◎" and "◎" are acceptable damages of the polycarbonate base material. The results of the polycarbonate damage test of Examples 55 and 56 are "○" for Example 55 and "○ to ◎" for Example 56 when the criteria of Test Example 8 are followed.

Test Example 9: Flux cleaning test (2)
(1) Preparation of cleaning test sample A commercially available lead-free solder paste for SMT (surface mount) (PF305) is placed on a zinc-coated iron plate (equivalent to JIS G3302, length 30 mm, width 30 mm, thickness 0.3 mm) via a metal mask. -117TO (TF), manufactured by Nihon Handa Co., Ltd.) was applied and placed on a hot plate at about 180 ° C. for 3 minutes, and then placed on a hot plate at about 250 ° C. for 5 minutes. Further, the mixture was cooled to room temperature (about 20 ° C.) and left to stand for 2 days to obtain a cleaning test sample (object to be cleaned with rosin-containing cream solder stains).

(2) Cleaning test The ultrasonic cleaner US-13KS (oscillation frequency: 38 kHz, high frequency output: 360 W) manufactured by SND Co., Ltd. was filled with tap water and the water temperature was adjusted to about 40 ° C. Put 50 mL of the cleaning composition in a 100 mL beaker, seal it with aluminum foil, immerse it in an ultrasonic cleaner to adjust the liquid temperature of the cleaning composition to about 39-40 ° C, and then ultrasonically. Under development, the cleaning test sample was immersed in the cleaning composition. After 1 minute, the test sample is taken out from the beaker and immersed in 50 mL of a rinse cleaning solvent composition having the same composition as the cleaning composition having a liquid temperature of about 39 to 40 ° C. prepared in advance in another 100 mL beaker under ultrasonic waves. I let you. After 1 minute, it was pulled out of the liquid and air-dried, and then the surface of the test sample was observed with the naked eye or using an HDМI digital stereomicroscope STZ-161-TLD1080М (manufactured by Shimadzu Rika Co., Ltd.).
⊚: No white residue is observed even when observed under a microscope.
◯: No white residue is observed with the naked eye, but a very small amount of white residue is observed when observed under a microscope.
●: A very small amount of white residue is observed with the naked eye.
Δ: A small amount of white residue is observed with the naked eye.
X: A white residue is easily observed with the naked eye.

Test Example 10: Mineral oil cleaning test A SUS304 plate (manufactured by Iwata Seisakusho Co., Ltd., 35 mm × 15 mm × 0.1 mm) was immersed in mineral oil (1) and pulled up after 5 minutes to prepare a cleaning test sample. The wash test sample was placed in a 100 mL beaker containing 50 mL of the composition heated to 39-40 ° C. and was withdrawn from the liquid after 3 minutes. Then, as a rinse wash, it was put into a 100 mL beaker containing 50 mL of the same composition at 20 ° C. (normal temperature), and after 1 minute, it was pulled out of the liquid and air-dried, and then the state of the SUS304 plate was observed. The cleanability was evaluated.
◯: The surface of the SUS plate could be cleaned.
Δ: A very small amount of oil remained on the surface of the SUS plate.
X: Clear oil residue was observed on the surface of the SUS plate.

Test Example 11: Silicone oil wiping test on ABS resin plate 0.1 g of silicone oil (1) was applied to the surface of an ABS type resin plate (manufactured by Takachi Denki Kogyo Co., Ltd., length 300 mm, width 200 mm, thickness 1.0 mm). It was dropped and made uniform using Round Brush No. 3 (horsehair) to prepare a cleaning test sample.
A set of two layers of tissue paper (manufactured by Oji Nepia Co., Ltd.), which has a size of 65 mm in length and 72 mm in width, is folded in four and soaked with the cleaning composition of each example. I squeezed it once with my index finger. The area of the cleaning test sample coated with silicone oil was wiped by contacting half of the tissue paper impregnated with each solvent composition and rubbing it by hand. The rinse was then wiped by touching the same area again with the other half of the tissue paper and rubbing it by hand.
After the cleaning test, it was visually observed whether or not the silicone oil of the cleaning test sample was removed, and evaluated according to the following criteria.
(Cleanability)
◯: There is no residue of silicone oil on the naked eye, and no wiping mark remains.
X: There is a residue of silicone oil on the naked eye, and / or a wiping mark remains.
(Damage to ABS)
◯: There is no change on the ABS surface.
X: Some change (dissolution / whitening) is observed on the ABS surface.

Test Example 12: Aerosol cleaning test (preparation of test sample)
0.1 g of mineral oil (2) or 0.1 g of silicone oil (1) was dropped onto a 100 mm x 100 mm section on a SUS430 flat plate (manufactured by Hikari Co., Ltd., 400 mm x 300 mm x 1 mm), and round brush No. 3 (horsehair). ) Was applied uniformly.
(Preparation of aerosol composition)
300 ml of each solvent composition was placed in an aluminum refillable air spray can A1631D (capacity 650 ml, manufactured by FIRSTINFO TOOLS CO., LTD.), And then compressed air was filled with an air compressor (0.6 MPa).
(Test method)
The aerosol composition was sprayed for 10 seconds from 50 cm from the test sample.
(Test results)
◯: The oil could be removed with the naked eye from the section to which the oil was applied.
X: Residual oil was observed with the naked eye in the section to which the oil was applied.

Test Example 13: Dryness test (2)
Immerse the SUS304 plate (manufactured by Iwata Seisakusho Co., Ltd., 35 mm x 15 mm x 0.1 mm) in each solvent composition, pull it up immediately, leave the SUS304 plate to lie down at 20 ° C, and allow the time until it is completely dried. It was measured. In this test, since the amount of the solvent composition adhering to the substrate is larger than that in Test Example 7: Dryness test (1), it takes a longer time to dry.
◯: It was dried in less than 30 minutes.
X: It took 30 minutes or more to dry.

The results are summarized in Tables 1-19. The flash point and boiling point in the table are catalog values.

From Tables 1 to 3, Tables 7 to 9, and Tables 13 to 18, the first and second solvent compositions were excellent in detergency or solubility in various oils.
From Tables 4 to 6, component (B) has a higher flash point than components (d-5) to (d-8), and thus the first and second compositions containing component (B) are: It was excellent in safety.
From Table 9, the second solvent composition in which the component (C) is at least one selected from the group consisting of the component (c1) and the component (c2) and the content thereof is in a preferable range is a polycarbonate base material. The damage to was more tolerable.
From Tables 10 to 11, the second solvent composition in which the component (C) is at least one selected from the group consisting of the components (c1) and (c2) and the content thereof is in another preferable range. Was less damaging to the capsule.
From Tables 12 and 19, the first and second solvent compositions have a solvent composition in which the component (B) is changed to a hydrocarbon solvent having a larger number of carbon atoms than the component (B) (d-9). It was excellent in drying property.
From Table 13, the second solvent composition in which the component (C) is the component (c3) was excellent in solubility in a water-soluble oil.
Further, according to Examples 18, 20, 23, 27 to 31, 62 to 82, 104, 120 to 121 and 124, the contents of the components (A) to (C) of the first and second solvent compositions are adjusted. When satisfied, the safety was excellent even when a component having a low flash point such as hexane or isoheptane was contained.
From Table 14, the first and second solvent compositions were excellent in the detergency of the flux. Further, by comparing Examples 105 to 106 and Examples 107 to 111, when the solvent composition contains an alcohol-based solvent (excluding (c3)), damage to the polycarbonate base material is more tolerable. rice field. In particular, the second solvent composition containing an alcohol-based solvent (excluding (c3)) was more tolerant of damage to the polycarbonate substrate. Further, the second solvent composition containing the alcohol-based solvent (excluding (c3)) and the component (c1) was particularly tolerant of damage to the polycarbonate base material.
From Table 15, when the content of the component (B) was preferable, the first and second solvent compositions were more excellent in detergency with respect to the flux. Further, by comparing Examples 114 and 125 with Examples 117, 119 and 121, the component (A) is (a-1) cis-1-chloro-3,3,3-trifluoropropene (B). ) Component was (b-2) methylcyclohexane or (b-3) ethylcyclohexane, which was particularly excellent in detergency.
From Table 16, the first and second solvent compositions were excellent in detergency against mineral oil.
From Table 17, the first and second solvent compositions were excellent in detergency against silicone oil, and damage to the ABS substrate was acceptable.
From Table 18, the first and second solvent compositions were excellent in detergency or solubility in various oils even as aerosol compositions containing them.
On the other hand, Comparative Examples 39 to 46 and 48 to 49 composed of only the components (A) and (C) were inferior in detergency with respect to mineral oil or silicone oil.

Claims (16)

(A) With cis-1-chloro-3,3,3-trifluoropropene ,
(B) A solvent composition containing one or more solvents selected from the group consisting of normal octane, isooctane, isononan, methylcyclohexane and ethylcyclohexane.
When the total amount of the composition is 100 parts by weight,
The content of (A) is more than 5 parts by weight and less than 95 parts by weight.
The content of (B) is less than 5 parts by weight Super 95 parts by weight, and the sum is less than 100 parts by weight or more 95 parts by weight of the content of (A) and (B), solvent composition (however, cis Excludes solvent compositions containing a combination of -1-chloro-3,3,3-trifluoropropene and a linear or branched alkene having 5 or 6 carbon atoms.) (A) With cis-1-chloro-3,3,3-trifluoropropene ,
(B) One or more solvents selected from the group consisting of normal octane, isooctane, isononan, methylcyclohexane and ethylcyclohexane.
(C) (c1) a hydrofluorocarbon and (c2) a solvent composition comprising one or more and a solvent selected from the hydrofluoroethers or Ranaru group,
(C1) Hydrofluorocarbons include 1,1,1,3,3-pentafluorobutane, 1,1,2,2,3,3,4-heptafluorocyclopentane and 1,1,1,2,2. , 3,3,4,4,5,5,6,6-one or more solvents selected from the group consisting of tridecafluorooctane.
(C2) Hydrofluoroethers include methyl nonafluorobutyl ether, methyl nonafluoroisobutyl ether, ethyl nonafluorobutyl ether, ethyl nonafluoroisobutyl ether, 1,1,2,2-tetrafluoroethyl-2,2,2-tri. Fluoroethyl ether, 1,1,1,2,2,3,4,5,5-decafluoro-3-methoxy-4- (trifluoromethyl) pentane, 1,1,1,2,3 3-Hexafluoro-4- (1,1,2,3,3,3-hexafluoropropoxy) pentane and 1,1,1,2,3,4,4,4-octafluoro-2-methoxy-3 One or more solvents selected from the group consisting of- (trifluoromethyl) butane,
When the total amount of the composition is 100 parts by weight,
The total content of (A) and (B) is more than 10 parts by weight and 94 parts by weight or less .
(A), (B) and Ri total der 100 parts by weight or less than 95 parts by weight of the content of (C), and
Ru content der less than 90 parts by weight 6 parts by weight or more of (C), solvent composition (however, the cis-1-chloro-3,3,3-trifluoropropene, the number of carbon atoms is 5 or 6 Excludes solvent compositions containing certain combinations with linear or branched alkenes.) Set the total amount of Narubutsu is 100 parts by weight, the content of (C) is less than 90 parts by weight 38 parts by weight or more, solvent composition according to claim 2. Set the total amount of Narubutsu is 100 parts by weight, the content of (C) is less than 38 parts by weight 6 parts by weight or more, solvent composition according to claim 2. (C) is 1,1,1,3,3-pentafluorobutane, methyl nonafluorobutyl ether, methyl nonafluoroisobutyl ether and 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl The solvent composition according to any one of claims 2 to 4, which is one or more solvents selected from the group consisting of ether. Any of claims 2 to 5, wherein ( B) is one or more solvents selected from the group consisting of isooctane and isononan, and (C) is 1,1,1,3,3-pentafluorobutane. The solvent composition according to one item. ( B) is one or more solvents selected from the group consisting of isooctane and isononane, and (C) is methyl nonafluorobutyl ether, methyl nonafluoroisobutyl ether and 1,1,2,2-tetrafluoroethyl-2. , 2,2-The solvent composition according to any one of claims 2 to 5, which is one or more solvents selected from the group consisting of trifluoroethyl ether. The solvent composition according to claim 1, wherein the content of (B) is more than 5 parts by weight and 50 parts by weight or less when the total amount of the composition is 100 parts by weight. The solvent composition according to any one of claims 1 to 5 and 8 , wherein (B) is methylcyclohexane. The solvent composition according to any one of claims 1 to 9 , which is a cleaning agent for cleaning an object to be cleaned with oily stains and / or oil. The solvent composition according to any one of claims 1 to 10 , which is a cleaning agent for removing oily stains and / or oil adhering to a polycarbonate resin or an ABS resin. One or more oils selected from the group consisting of mineral oils, vegetable oils, animal oils, heavy oils, waxes, resins, silicone oils and fluorine oils, and / or selected from the group consisting of one or more oil stains. The solvent composition according to any one of claims 1 to 11, which is a cleaning agent for cleaning an object to be cleaned to which one or more oily stains are attached. One or more oils selected from the group consisting of cutting oils, pressing oils, drawing oils, heat treatment oils, rust preventive oils, lubricating oils, metal processing oils, greases, asphalt, and water-soluble oils, and / or the above 1 The solvent composition according to any one of claims 1 to 12, which is a cleaning agent for cleaning an object to be cleaned to which one or more oily stains are attached, which is selected from the group consisting of oil stains of one or more species. thing. (A) With cis-1-chloro-3,3,3-trifluoropropene,
(B) One or more solvents selected from the group consisting of normal octane, isooctane, isononan, methylcyclohexane and ethylcyclohexane.
(C) (c3) with 1-methoxy-2-propanol
A solvent composition, which is a dissolving agent for a water-soluble oil containing
When the total amount of the composition is 100 parts by weight,
The total content of (A) and (B) is greater than 10 parts by weight and less than 100 parts by weight, and
A solvent composition having a total content of (A), (B) and (C) of 95 parts by weight or more and 100 parts by weight or less (however, with cis-1-chloro-3,3,3-trifluoropropene). , Excluding solvent compositions comprising a combination with a linear or branched alkene having 5 or 6 carbon atoms). Set the total amount of Narubutsu is 100 parts by weight, the content of (C) is less than 15 parts by weight or more 90 parts by weight, the solvent composition of claim 14. Step (1A): Immersing the object to be cleaned in the solvent composition according to any one of claims 1 to 15 , and Step (1B): Solvent according to any one of claims 1 to 15. A cleaning agent for use in a method for cleaning an object to be cleaned, which comprises a step of generating steam containing the component (A) from the composition and bringing the object to be cleaned into contact with the generated vapor containing the component (A). , The solvent composition according to any one of claims 1 to 15.