JP2022128446A - Solvent composition for cleaning and aerosol composition containing the same - Google Patents

Abstract

To provide a solvent composition containing 1-bromo-2-methylpropane, which is excellent in dryability.SOLUTION: The present invention relates to a solvent composition for cleaning and an aerosol composition for cleaning containing the same. The solvent composition for cleaning contains (A) 1-bromo-2-methylpropane and (B) a fluorine-based solvent and contains, as optional components, one or more components selected from the group consisting of: (C) stabilizers such as (c1) epoxides, (c2) nitroalkanes, and (c3) cyclic ethers (excluding the epoxides (c1)); (D) other components such as (d1) alcohols (excluding glycol ethers (d3) and perfume components (d4)), (d2) esters, (d3) the glycol ethers, (d4) the perfume components, and (d5) hydrocarbons (excluding the perfume components (d4)); and (E) additives.SELECTED DRAWING: None

Description

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

1-Bromo-2-methylpropane (isobutyl bromide) has excellent degreasing and cleaning properties, and is expected to be the main component of brominated detergents. Example No. 1 of Patent Document 1. 2 shows a solvent composition consisting only of isobutyl bromide and nitromethane.

JP-A-7-150196

However, brominated solvents using 1-bromo-2-methylpropane sometimes have a problem of drying properties.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a 1-bromo-2-methylpropane-based cleaning solvent composition having excellent drying properties.

The present invention has the following configurations.
[1] A cleaning solvent composition containing (A) 1-bromo-2-methylpropane and (B) a fluorinated solvent.
[2] (B) consists of (b1) hydrofluorocarbons, (b2) hydrofluoroethers, (b3) hydrofluoroolefins and (b4) chlorofluoroolefins (excluding (b3) hydrofluoroolefins) The cleaning solvent composition of [1], which is one or more solvents selected from the group.
[3] (B) contains (b1) hydrofluorocarbons, (b1) is (b1-1) 1,1,1,3,3-pentafluorobutane, (b1-2) 1,1,1, 1 selected from the group consisting of 2,2,3,4,5,5,5-decafluoropentane and (b1-3) 1,1,2,2,3,3,4-heptafluorocyclopentane The cleaning solvent composition of [1] or [2], which is the above.
[4] (B) contains (b1-1) 1,1,1,3,3-pentafluorobutane, and (b1-1 ) is more than 70 parts by mass and less than 100 parts by mass.
[5] (B) contains (b2) hydrofluoroethers, (b2) is (b2-1) 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, ( b2-2) one or more solvents selected from the group consisting of methyl nonafluorobutyl ether and methyl nonafluoroisobutyl ether, (b2-3) 1,1,1,2,2,3,4,5,5, 5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane, and (b2-4) one or more solvents selected from the group consisting of ethyl nonafluorobutyl ether and ethyl nonafluoroisobutyl ether The cleaning solvent composition of [1] or [2], which is one or more solvents selected from the group consisting of:
[6] (B) contains (b2-1) 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, and the total mass of (A) and (b2-1) is 100 The cleaning solvent composition of [1] or [2], wherein the content of (b2-1) is more than 14 parts by mass and less than 100 parts by mass.
[7] (B) contains (b2-2) one or more solvents selected from the group consisting of methyl nonafluorobutyl ether and methyl nonafluoroisobutyl ether, and a total of 100 masses of (A) and (b2-2) The cleaning solvent composition of [1] or [2], wherein the content of (b2-2) is more than 9 parts by mass and less than 100 parts by mass.
[8] (B) contains (b3) hydrofluoroolefins, (b3) is (b3-1) cis-1-chloro-3,3,3-trifluoropropene, (b3-2) (E) -one or more solvents selected from the group consisting of 1-chloro-2,3,3-trifluoropropene and (Z)-1-chloro-2,3,3-trifluoropropene, (b3-3) (Z)-1,1,1,4,4,4-hexafluoro-2-butene, (b3-4) methoxyperfluoroheptene, (b3-5) 1,1-dichloro-3,3,3 -trifluoropropene, (b3-6) 1,2-dichloro-3,3,3-trifluoropropene, (b3-7) 1-chloro-1,3,3-trifluoropropene, (b3-8) (Z)-1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene, (b3-9) (E)-1-chloro-2,3,3,4, 4,5,5-heptafluoro-1-pentene, (b3-10) 1,2-dichloro-3,3-difluoropropene, and (b3-11) 1,3-dichloro-3,3-difluoropropene The cleaning solvent composition of [1] or [2], which is at least one selected from the group consisting of:
[9] (B) contains (b3-1) cis-1-chloro-3,3,3-trifluoropropene, and (b3 The cleaning solvent composition of [1] or [2], wherein the content of -1) is more than 15 parts by mass and less than 100 parts by mass.
[10] The group in which (B) consists of (b3-2) (E)-1-chloro-2,3,3-trifluoropropene and (Z)-1-chloro-2,3,3-trifluoropropene The content of (b3-2) is more than 65 parts by mass and less than 100 parts by mass, with respect to the total 100 parts by mass of (A) and (b3-2). The cleaning solvent composition of [1] or [2].
[11] (B) contains (b3-3)(Z)-1,1,1,4,4,4-hexafluoro-2-butene, and the total mass of (A) and (b3-3) is 100 The cleaning solvent composition of [1] or [2], wherein the content of (b3-3) is more than 1 part by mass and less than 100 parts by mass.
[12] Furthermore, one or more (C) stabilizers selected from the group consisting of (c1) epoxides, (c2) nitroalkanes and (c3) cyclic ethers (excluding (c1) epoxides) The cleaning solvent composition according to any one of [1] to [11].
[13] In addition, (d1) alcohols (excluding (d3) glycol ethers and (d4) perfume ingredients), (d2) esters, (d3) glycol ethers, (d4) perfume ingredients and (d5) ) The cleaning solvent composition according to any one of [1] to [12], which contains one or more (D) other components selected from the group consisting of hydrocarbons (excluding (d4) perfume components).
[14] The solvent composition for cleaning according to any one of [1] to [13], whose flash point is not detected in closed-tag flash point measurement.
[15] The cleaning agent according to any one of [1] to [14], which is a cleaning agent for cleaning an object to which one or more selected from the group consisting of oily dirt, oil, flux and resin adheres. solvent composition.
[16] The cleaning solvent composition according to any one of [1] to [15], which is a cleaning agent for use as a cleaning agent for hand wiping.
[17] Step (1A): a step of immersing an object to be cleaned in any of the cleaning solvent compositions of [1] to [15]; and Step (1B): any of [1] to [15]. a step of generating steam containing the component (A) from the cleaning solvent composition, and contacting the object to be cleaned with the generated steam containing the component (A). The cleaning solvent composition according to any one of [1] to 15], which is an agent.
[18] A cleaning aerosol composition containing the cleaning solvent composition according to any one of [1] to [15] and a propellant gas.
[19] A cleaning method comprising jetting the cleaning aerosol composition of [18] for cleaning.

The present invention provides a 1-bromo-2-methylpropane-based cleaning solvent composition with excellent drying properties.

FIG. 1 is a diagram showing an outline of a cleaning system 1. As shown in FIG. FIG. 2 is a diagram showing an outline of the cleaning system 2. As shown in FIG. FIG. 3 is a diagram showing an outline of the cleaning system 3. As shown in FIG. FIG. 4 is a diagram showing an outline of the cleaning system 4. As shown in FIG.

(Definition of terms)
"(A) 1-bromo-2-methylpropane" may be referred to as "(A)" or "(A) component". The same applies to other components such as "(B) fluorinated solvent".
For numerical ranges, "to" is meant to be inclusive. That is, "0.1 to 10 parts by weight" means "0.1 to 10 parts by weight". Also, "less than or equal to" means "equal to or less than", and "greater than or equal to" means "equal to or greater than".

[Cleaning solvent composition]
The cleaning solvent composition (hereinafter also simply referred to as "solvent composition") contains (A) 1-bromo-2-methylpropane and (B) a fluorinated solvent.

The cleaning solvent composition is a 1-bromo-2-methylpropane-based solvent composition with excellent drying properties. That is, the solvent composition does not contain the component (B) and is superior in drying property to a solvent composition containing the component (A) and the like. In addition, when the solvent composition contains the (B) component, it may be possible to suppress the rusting of metals (for example, iron).

<(A) 1-bromo-2-methylpropane>
Component (A) is the main ingredient of the solvent composition. (A) Component may be called isobutyl bromide. 1-Bromo-2-methylpropane may be commercially available or synthesized.

<(B) Fluorinated solvent>
Component (B) is the main ingredient of the solvent composition. Component (B) is not particularly limited as long as it has one or more fluorine atoms in its molecule. Component (B) includes (b1) hydrofluorocarbons, (b2) hydrofluoroethers, (b3) hydrofluoroolefins, and (b4) chlorofluoroolefins (excluding (b3) hydrofluoroolefins). A commercially available product may be used, or it may be synthesized.

<<(b1) Hydrofluorocarbons>>
(b1) Hydrofluorocarbons (HFCs) are compounds consisting only of carbon atoms, fluorine atoms and hydrogen atoms, and do not have carbon-carbon double bonds. Examples of components (b1) include (b1-1) 1,1,1,3,3-pentafluorobutane (HFC-365mfc), (b1-2) 1,1,1,2,2,3, 4,5,5,5-decafluoropentane (HFC-43-10mee), (b1-3) 1,1,2,2,3,3,4-heptafluorocyclopentane (HFC-c447ef), 1, 1,1,2,2,3,3,4,4,5,5,6,6-tridecafluorooctane (HFC-76-13sf), 1,1,1,2,2,3,3, 4,4,5,5,6,6-tridecafluorohexane (HFC-52-13p), 1,1,1,2,2,3,3,4,4-nonafluorohexane (HFC-569sf) is mentioned. Commercially available products of component (b1) include, for example, Solcan (registered trademark) 365mfc (manufactured by Solvay Japan Co., Ltd.) as a commercially available product of 1,1,1,3,3-pentafluorobutane. , 2,3,3,4-heptafluorocyclopentane includes Zeorora (registered trademark) H (manufactured by Nippon Zeon Co., Ltd.).

<<(b2) Hydrofluoroethers>>
(b2) Hydrofluoroethers (HFEs) are compounds containing carbon atoms, fluorine atoms, hydrogen atoms and ether linkages (--O--). The total number of carbon atoms in component (b2) is preferably 2-20, particularly preferably 3-10. The number of ether bonds in component (b2) is preferably 1 or more, particularly preferably 1-2. Component (b2) includes methyl nonafluorobutyl ether, methyl nonafluoroisobutyl ether, ethyl nonafluorobutyl ether, ethyl nonafluoroisobutyl ether, 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl 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, 1,1,1,2,3,4,4,4-octafluoro-2-methoxy-3-(trifluoromethyl)butane, methyl perfluoropropyl ether and the like. be done. Component (b2) may be (b2-1) 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, (b2-2) methyl nonafluorobutyl ether and methyl one or more solvents selected from the group consisting of nonafluoroisobutyl ether; (b2-3) 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4 -(trifluoromethyl)-pentane, (b2-4) one or more solvents selected from the group consisting of ethyl nonafluorobutyl ether and ethyl nonafluoroisobutyl ether, and at least one solvent selected from the group consisting of There may be. Commercially available products of component (b2) include 3M (trademark) Novec (trademark) 7100 high-performance liquid, 3M (trademark) Novec (trademark) 7200 high-performance liquid, and 3M (trademark) Novec (trademark) 7300 high-performance liquid. , 3M (trademark) Novec (trademark) 7000 high-performance liquid (manufactured by 3M Japan Ltd.), and Asahiklin AE3000 (manufactured by AGC Corporation).

<<(b3) Hydrofluoroolefins>>
(b3) Hydrofluoroolefins are fluoroolefin compounds that may contain one or more atoms selected from the group consisting of chlorine atoms and bromine atoms and may be substituted with an alkoxy group. Component (b3) preferably has 3 to 8 carbon atoms, particularly preferably 3 to 7 carbon atoms. The number of unsaturated bonds in component (b3) is preferably 1 or more, particularly preferably 1-2. In addition, the component (b3) may be a hydrochlorofluoroolefin compound containing a hydrogen atom and a chlorine atom and not containing a bromine atom, which contains a hydrogen atom and does not contain a chlorine atom and a bromine atom. , a hydrofluoroolefin. (b3) components include cis-1-chloro-3,3,3-trifluoropropene (HCFO-1233zd(Z)), (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, 3,3-trifluoropropene (HCFO-1223za), (Z)-1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd(Z)), (E)-1,2-dichloro -3,3,3-trifluoropropene (HCFO-1223xd(E)), 1-chloro-1,3,3-trifluoropropene, (Z)-1-chloro-2,3,3,4,4 ,5,5-heptafluoro-1-pentene (HCFO-1437dycc(Z)), (E)-1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene (HCFO -1437dycc (E)), 1,2-dichloro-3,3-difluoropropene (HCFO-1232xd), 1,3-dichloro-3,3-difluoropropene (HCFO-1232zd), 2-chloro-1,3 ,3,3-tetrafluoropropene, (Z)-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz(Z)), methoxyperfluoroheptene (methoxytridecafluoro heptene) and the like. Components (b3) are (b3-1) cis-1-chloro-3,3,3-trifluoropropene, (b3-2) (E)-1-chloro-2,3,3-trifluoropropene and one or more solvents selected from the group consisting of (Z)-1-chloro-2,3,3-trifluoropropene, (b3-3)(Z)-1,1,1,4,4,4 -hexafluoro-2-butene, (b3-4) methoxyperfluoroheptene, (b3-5) 1,1-dichloro-3,3,3-trifluoropropene, (b3-6) 1,2-dichloro -3,3,3-trifluoropropene, (b3-7) 1-chloro-1,3,3-trifluoropropene, (b3-8) (Z)-1-chloro-2,3,3,4 , 4,5,5-heptafluoro-1-pentene, (b3-9) (E)-1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene, (b3 -10) 1,2-dichloro-3,3-difluoropropene or (b3-11) 1,3-dichloro-3,3-difluoropropene and the like, components (b3-1) to (b3-11) It is preferably one or more selected from the group consisting of components, and may be an isomer mixture. Commercially available products of component (b3) include CELEFIN (registered trademark) 1233Z (HCFO-1233zd (Z)) (manufactured by Central Glass Co., Ltd.), AMOLEA (registered trademark) AS-300 (manufactured by AGC Inc.) ((E)- 1-chloro-2,3,3-trifluoropropene (HCFO-1233yd(E)), (Z)-1-chloro-2,3,3-trifluoropropene (HCFO-1233yd(Z)) and stabilizer mixture))), Opteon (trademark) SF33 (HFO-1336mzz (Z) 90% by mass or more and 100% by mass or less) (manufactured by Mitsui Chemours Fluoro Products Co., Ltd.), Opteon (trademark) SF10 (methoxyperfluoroheptene isomer mixture of more than 99% by mass) (manufactured by Mitsui Chemours Fluoro Products Co., Ltd.), DR CFX70 (development product) (manufactured by Mitsui Chemours Fluoro Products Co., Ltd.), and the like.

<<(b4) chlorofluoroolefins (excluding (b3) hydrofluoroolefins)>>
Component (b4) is an olefin compound consisting only of fluorine atoms, chlorine atoms and carbon atoms. (b4) components include 1,1-dichloro-2,3,3,3-tetrafluoropropene (CFO-1214ya) and 1,1,2-trichloro-3,3,3-trifluoropropene (CFO- 1213xa) and the like.

The components (B) may each be one or a combination of two or more. For example, the component (B) may be a combination of one or more components (b1) and one or more components (b3).

<Components other than components (A) and (B)>
The solvent composition can contain components other than components (A) and (B) within a range that does not impair the effects of the present invention. Such ingredients include one or more ingredients selected from the group consisting of (C) stabilizers, (D) other ingredients and (E) additives. In addition, the solvent composition may contain impurities of the components (A) to (E) described above.

«(C) Stabilizer»
(C) A stabilizer is a component that imparts stability to the solvent composition. (C) Stabilizers include one or more selected from the group consisting of (c1) epoxides, (c2) nitroalkanes and (c3) cyclic ethers (excluding (c1) epoxides).

<<<(c1) epoxides>>>
(c1) Epoxides are not particularly limited as long as they are components having one or more epoxy groups in the molecule. Component (c1) includes aliphatic epoxides (excluding alicyclic epoxides), alicyclic epoxides, and aromatic epoxides, which may be commercially available or synthesized.

Aliphatic epoxides (excluding alicyclic epoxides) include 1,2-butylene oxide (1,2-epoxybutane), 2,3-butylene oxide, propylene oxide, pentene oxide, normal hexene oxide, heptene oxide, Alkylene oxides such as octene oxide, glycidol and isobutylene oxide; epoxides having halogen atoms such as epichlorohydrin (epichlorohydrin) and epibromohydrin; butyl glycidyl ether, 2-ethylhexyl glycidyl ether, ethylene glycol diglycidyl ether, dodecyl alcohol glycidyl ether of tridecyl alcohol, methyl glycidyl ether, ethyl glycidyl ether, normal propyl glycidyl ether, isopropyl glycidyl ether; glycidyl acetate, glycidyl propionate, glycidyl butyrate, glycidyl methacrylate, glycidyl benzoate and alkyl glycidyl esters such as epoxidized decyl oleate.

Alicyclic epoxides include cyclopentene oxide (1,2-epoxycyclopentane), cyclohexene oxide (1,2-epoxycyclohexane) and the like.

Aromatic epoxides include styrene oxide and cresyl glycidyl ether.

Component (c1) is preferably a component having one or two epoxy groups in the molecule. In addition, the component (c1) preferably does not have a chlorine atom, and particularly preferably does not have a halogen atom. Further, 1,2-butylene oxide, methylglycidyl ether, and cyclopentene oxide are preferred as the component (c1) from the viewpoint of exhibiting excellent effects even when added in a small amount.

<<<(c2) Nitroalkanes>>>
(c2) Nitroalkanes are not particularly limited as long as they have one or more nitro groups in the molecule. Component (c2) includes nitromethane, nitroethane, 1-nitropropane, 2-nitropropane and the like. Component (c2) is preferably nitromethane or nitroethane.

<<<(c3) cyclic ethers (excluding (c1) epoxides) >>>
(c3) Cyclic ethers include 1,3-dioxolane, 1,4-dioxane, tetrahydrofuran, methyltetrahydrofuran, 4-methyltetrahydropyran and the like.

(C) Each of the stabilizers may be one or a combination of two or more. For example, the component (C) is a combination of one or more components (c1), one or more components (c2), and one or more components (c3). may

<<(D) Other components>>
(D) Other components include (d1) alcohols (excluding (d3) glycol ethers and (d4) perfume ingredients), (d2) esters, (d3) glycol ethers, and (d4) perfume ingredients and (d5) one or more selected from the group consisting of hydrocarbons (excluding (d4) perfume ingredients).

<<<(d1) Alcohols>>>
(d1) alcohols (excluding (d3) glycol ethers and (d4) perfume components) include monoalcohol solvents, such as ethanol, methanol, 1-propanol, isopropyl alcohol, 1-butanol, isobutyl alcohol, tarsier Libutanol, secondary butyl alcohol, phenoxyethanol, benzyl alcohol, diacetone alcohol, 2-propyn-1-ol, 2-ethylhexanol and the like. Component (d1) is preferably ethanol, methanol, 1-propanol, or isopropyl alcohol.

<<<(d2) Esters>>>
(d2) Esters include monoester-based solvents, ester-based solvents having two carbonyl groups, carbonate-based solvents, and cyclic ester-based solvents. Specific examples of the component (d3) include methyl acetate, ethyl acetate, normal-propyl acetate, isopropyl acetate, butyl acetate, sec-butyl acetate, methoxybutyl acetate, amyl acetate, soybean fatty acid methyl ester, methyl lactate, and ethyl lactate. , propyl lactate, dibasic acid ester (DBE), ethyl acetoacetate, γ-butyrolactone, dimethyl carbonate, ethyl methyl carbonate, diethyl carbonate, ethylene carbonate, propylene carbonate, butylene carbonate, dimethyl oxalate, diethyl oxalate, and the like. . Component (d2) is preferably dimethyl carbonate or γ-butyrolactone.

<<<(d3) glycol ether>>>
(d3) Glycol ethers are compounds in which one or both hydroxy groups of ethylene glycol or propylene glycol are alkyl-, alkenyl-, alkynyl- or aryl-substituted. (d3) components include methyl cellosolve, ethyl cellosolve, isopropyl cellosolve, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, diethylene glycol monoethyl ether, triethylene glycol monoethyl ether, ethylene glycol monopropyl ether, diethylene glycol monopropyl ether, tri Ethylene Glycol Monopropyl Ether, Ethylene Glycol Monobutyl Ether, Diethylene Glycol Monobutyl Ether, Triethylene Glycol Monobutyl Ether, Propylene Glycol Monomethyl Ether, Dipropylene Glycol Monomethyl Ether, Tripropylene Glycol Monomethyl Ether, Propylene Glycol Monoethyl Ether, Dipropylene Glycol Monoethyl Ether , Tripropylene Glycol Monoethyl Ether, Propylene Glycol Monopropyl Ether, Dipropylene Glycol Monopropyl Ether, Tripropylene Glycol Monopropyl Ether, Propylene Glycol Monobutyl Ether, Dipropylene Glycol Monobutyl Ether, Tripropylene Glycol Monobutyl Ether, Propylene Glycol, Ethylene Glycol , dipropylene glycol, diethylene glycol, tripropylene glycol, diethylene glycol monobutyl ether, ethylene glycol dimethyl ether (monoglyme), diethylene glycol dimethyl ether, ethylene glycol diethyl ether, diethylene glycol diethyl ether, triethylene glycol dimethyl ether, diethylene glycol dibutyl ether, dimethoxytetraethylene glycol, dipropylene Glycol dimethyl ether, propylene glycol monomethyl ether acetate, diethylene glycol monobutyl ether acetate, diethylene glycol monoethyl ether acetate, ethylene glycol monophenyl ether, ethylene glycol methyl ether, ethylene glycol ethyl ether, 3-methoxy-3-methyl-1-butanol, diethylene glycol mono Hexyl ether, diethylene glycol ethyl methyl ether, dipropylene glycol ethyl methyl ether and the like. Component (d3) is preferably propylene glycol monomethyl ether.

<<<(d4) perfume component>>>
(d4) As the perfume component, limonene, pinene, myrcene, linalool, terpineol, alloocimene, terpinene, terpineol and the like are preferable. When the solvent composition contains the component (d4), the scent of the component (A) can be reduced and at the same time a desired scent can be imparted to the solvent composition.

<<<(d5) hydrocarbons (excluding (d4) perfume ingredients) >>>
(d5) hydrocarbons consist only of carbon and hydrogen, may be linear or branched, may be cyclic or acyclic, and may have carbon-carbon double bonds; It is a hydrogen-based solvent. Component (d5) includes (d5-1) methylcyclohexane, pentane, isopentane, cyclopentane, hexane, isohexane, cyclohexane, normal heptane, isoheptane, cycloheptane, normal octane, isooctane, cyclooctane, nonane, isononane, cyclononane, Decane, isodecane, ethylcyclohexane, 2-methyl-2-butene, 2-methyl-1-pentene, 2-methyl-2-pentene, 3-ethyl-2-butene, 2,3-dimethyl-2-butene, 2 ,4,4-trimethyl-1-pentene, 2,4,4-trimethyl-2-pentene, 2,2,4,6,6-pentamethylheptane, isododecane, isoparaffins, naphthenes, aromatic hydrocarbons etc. The hydrocarbon-based solvent may be synthetic.

The (D) components may each be one or a combination of two or more.

«(E) Additives»
(E) components include acyclic ethers (excluding (d3) glycol ethers), chloroolefins (excluding those having fluorine atoms), water, ultraviolet absorbers, antioxidants, polymerization inhibitors, anti- Examples include rust agents, antifoaming agents, surfactants and chelating agents.

Acyclic ethers (excluding (d3) glycol ethers) include dipropyl ether, diisopropyl ether, diethyl ether, diisobutyl ether, dibutyl ether and methyl tertiary butyl ether.

Chloroolefins (except those with fluorine atoms) are olefinic compounds containing carbon and chlorine atoms and optionally containing hydrogen atoms. Chloroolefins include hydrochloroolefins and perchloroolefins. Hydrochloroolefins include trans-1,2-dichloroethylene and trichlorethylene. Examples of perchloroolefins include tetrachlorethylene (perchlorethylene) and the like.

The ultraviolet absorber and antioxidant are components that improve the stability of the solvent composition during long-term storage and the like. UV absorbers include benzotriazole UV absorbers, benzophenone UV absorbers, and hindered amine UV absorbers. Antioxidants include phenol antioxidants, amine antioxidants, sulfur antioxidants, and phosphorus 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 -2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)benzene, 2,4-bis[(octylthio)methyl]-o-cresol, 4-methoxyphenol, 2-methoxy Phenol and the like can be mentioned. Methylhydroquinone (2,5-dihydroxytoluene) and 4-methoxyphenol can also be used as polymerization inhibitors.

Amine antioxidants include alkylated diphenylamine, tris-(3,5-di-t-butyl-4-hydroxybenzyl)-isocyanurate, N,N-di-sec-butyl-p-phenylenediamine, p- phenylenediamine derivatives, 1,3,5-tris(4-t-butyl-3-hydroxy-2,6-dimethyl)isocyanurate and the like. Sulfur antioxidants include 2,4-bis[(octylthio)methyl]-o-cresol, dilauryl-3,3-thiodipropionate, dimyristyl-3,3-diodipropionate, distearyl-3, 3-thiodipropionate, pentaerythrityl tetrakis(3-laurylthiopropionate), ditridecyl-3,3-thiodipropionate, 2-mercaptobenzimidazole, bis[2-methyl-4-(3-n) -alkylthiopropionyloxy)-5-t-butylphenyl]sulfide and the like. Phosphorus antioxidants include tris-nonylphenylphosphite, triphenylphosphite, tris(2,4-di-t-butylphenyl)phosphite, tris(isodecyl)phosphite and the like.

Chelating agents include aminocarboxylic acid-based chelating agents, and hydroxyethylaminoacetic acid, hydroxyethyliminodiacetic acid, ethylenediaminetetraacetic acid, and salts thereof are preferred.

Rust inhibitors include cyclohexylamine, dicyclohexylamine and N,N-bis(2-hydroxyethyl)-N-cyclohexylamine. Surfactants 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, Preferred are sugar fatty acid esters, silicone-based surfactants, fluorine-based surfactants, and the like.

The component (E) other than the components described above is not particularly limited as long as it is a component commonly used in the field of brominated cleaning solvent compositions, and can be used as appropriate.
The (E) component may be one kind or a combination of two or more kinds.

<Preferred embodiment>
The solvent composition preferably further contains (C) a stabilizer. When the solvent composition further contains the component (C), there is a tendency that coloring of the solvent composition can be suppressed. Moreover, when the solvent composition further contains the component (C), damage to metals (especially iron, aluminum, aluminum die-cast and copper) is reduced.

The solvent composition preferably further contains (D) other components. When the solvent composition further contains the component (D), it may be possible to efficiently (low-cost) produce the solvent composition exhibiting the effects of the present invention.

From the viewpoint of safety, the solvent composition may have a flash point that cannot be detected in a closed-tag flash point measurement.

<Composition of Solvent Composition>
The content of each component in the solvent composition is as follows.
The content of component (A) is preferably more than 0 parts by weight and 95 parts by weight or less, and is 10 parts by weight or more and 90 parts by weight or less with respect to a total of 100 parts by weight of components (A) and (B). more preferably 30 parts by weight or more and 80 parts by weight or less.
The content of component (C) is preferably 0 parts by weight or more and 10 parts by weight or less, and 0.05 parts by weight or more and 5 parts by weight with respect to a total of 100 parts by weight of components (A) and (B). It is more preferably 0.1 to 5 parts by weight, and particularly preferably 0.45 to 4 parts by weight.

(A) component, (B) component, (d1) component, (d2) component, (d3) and (d5) component (d1) component, (d2) component, (d3) with respect to a total of 100 parts by weight of component (d1) component, (d2) component, (d3) and the total content of the component (d5) is preferably 0 parts by weight or more and 60 parts by weight or less, more preferably 5 parts by weight or more and 50 parts by weight or less, and 10 parts by weight or more and 40 parts by weight or less It is particularly preferred to have Also, the content of component (d1), component (d2) and component (d3) with respect to a total of 100 parts by weight of component (A), component (B), component (d1), component (d2) and component (d3) may be 0 to 60 parts by weight, 5 to 50 parts by weight, or 10 to 40 parts by weight. In addition, from the viewpoint of detergency against epoxy resins or flux detergency, the content of component (d1) is 0.1 wt. parts by weight or more and less than 25 parts by weight, more preferably 0.2 parts by weight or more and 20 parts by weight or less, still more preferably 0.3 parts by weight or more and 15 parts by weight or less, and 0.5 parts by weight Part or more and 10 parts by weight or less is particularly preferable. In addition, from the viewpoint of being able to efficiently (low-cost) produce the solvent composition exhibiting the effects of the present invention, The content of component (d2) is preferably 0.1 to 40 parts by weight, more preferably 1 to 35 parts by weight, and preferably 10 to 30 parts by weight. Especially preferred. In addition, from the viewpoint of cleaning performance for felt pens (e.g., McKee pen) or cleaning performance for epoxy resins or urethane resins, for a total of 100 parts by weight of components (A), (B) and (d3), The content of component (d3) is preferably 1 part by weight or more and 30 parts by weight or more, more preferably 3 parts by weight or more and 25 parts by weight or less, particularly 10 parts by weight or more and 20 parts by weight or less. preferable. Further, from the viewpoint of being able to efficiently (low-cost) produce a solvent composition that exhibits the effects of the present invention, The content of component (d5) is preferably 0.1 to 40 parts by weight, more preferably 1 to 35 parts by weight, and preferably 10 to 30 parts by weight. Especially preferred.

In addition to the above, preferred contents of each component in the solvent composition are as follows from the viewpoint of safety.
When component (b1) is (b1-1) 1,1,1,3,3-pentafluorobutane, (b1- 1) It is preferable that the component is more than 70 parts by mass and less than 100 parts by mass. In this case, the solvent composition may or may not contain component (B) other than (b1-1). In the former case, the component (B) contains the component (b1-1), and the component (b1-1) is more than 70 parts by mass and 100 It may be less than parts by mass. In the latter case, the component (B) is the component (b1-1), and the component (B) is more than 70 parts by mass and less than 100 parts by mass with respect to a total of 100 parts by mass of the components (A) and (B). There may be.

When component (b2) is (b2-1) 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, the total of component (A) and component (b2-1) is 100 Component (b2-1) is preferably more than 14 parts by mass and less than 100 parts by mass. In this case, the solvent composition may or may not contain component (B) other than (b2-1). In the former case, the component (B) contains the component (b2-1), and the component (b2-1) is greater than 14 parts by mass and 100 It may be less than parts by mass. In the latter case, component (B) is component (b1-1), and component (B) is more than 14 parts by mass and less than 100 parts by mass with respect to a total of 100 parts by mass of components (A) and (B). There may be.

When component (b2) is one or more solvents selected from the group consisting of (b2-2) methyl nonafluorobutyl ether and methyl nonafluoroisobutyl ether, the total of component (A) and component (b2-2) is 100 Component (b2-2) is preferably more than 9 parts by mass and less than 100 parts by mass. In this case, the solvent composition may or may not contain component (B) other than (b2-2). In the former case, the component (B) contains the component (b2-2), and the component (b2-2) is more than 9 parts by mass and 100 It may be less than parts by mass. In the latter case, component (B) is component (b2-2), and component (B) is more than 9 parts by mass and less than 100 parts by mass with respect to a total of 100 parts by mass of components (A) and (B). There may be.

When the component (b3) is (b3-1) cis-1-chloro-3,3,3-trifluoropropene, ( Component b3-1) is preferably more than 15 parts by mass and less than 100 parts by mass. In this case, the solvent composition may or may not contain component (B) other than (b3-1). In the former case, the component (B) contains the component (b3-1), and the component (b3-1) is greater than 15 parts by mass and 100 It may be less than parts by mass. In the latter case, the component (B) is the component (b3-1), and the component (B) is more than 15 parts by mass and less than 100 parts by mass with respect to a total of 100 parts by mass of the components (A) and (B). There may be.

Component (b3) is selected from the group consisting of (b3-2) (E)-1-chloro-2,3,3-trifluoropropene and (Z)-1-chloro-2,3,3-trifluoropropene If it is one or more solvents, the component (b3-2) is more than 65 parts by mass and less than 100 parts by mass with respect to the total of 100 parts by mass of the components (A) and (b3-2). preferable. In this case, the solvent composition may or may not contain component (B) other than (b3-2). In the former case, the component (B) contains the component (b3-2), and the component (b3-2) is greater than 65 parts by mass and 100 It may be less than parts by mass. In the latter case, the component (B) is the component (b3-2), and the component (B) is more than 65 parts by mass and less than 100 parts by mass with respect to a total of 100 parts by mass of the components (A) and (B). There may be.

When the component (b3) is (b3-3)(Z)-1,1,1,4,4,4-hexafluoro-2-butene, the sum of the components (A) and (b3-3) is 100 Component (b3-3) is preferably more than 1 part by mass and less than 100 parts by mass. In this case, the solvent composition may or may not contain component (B) other than (b3-3). In the former case, the component (B) contains the component (b3-3), and the component (b3-3) is greater than 1 part by mass and 100 It may be less than parts by mass. In the latter case, the component (B) is the component (b3-3), and the component (B) is more than 1 part by mass and less than 100 parts by mass with respect to a total of 100 parts by mass of the components (A) and (B). There may be.

When the total amount of the solvent composition is 100 parts by weight, the total content of components (A) and (B) is preferably 70 parts by weight or more and 100 parts by weight or less, and 80 parts by weight or more and 99 parts by weight. or less, and particularly preferably 90 parts by weight or more and 98 parts by weight or less. Further, when the total amount of the solvent composition is 100 parts by weight, the content of the component (d4) is 0.01 parts by weight or more and 10 parts by weight or less from the viewpoint of improving the odor by the component (A). It is preferably 0.1 to 5 parts by weight, particularly preferably 0.2 to 1 part by weight.

In addition, when the component (B) is limited to a specific component (for example, the component (b1), specifically the component (b1-1)), the solvent composition contains components other than the specific component. (B) component (for example, (b2) to (b3) components, specifically (b2-1) component, (b2-2) component, (b3-1) component, (b3-2) component or (b3-3) component.) may or may not be included. For example, when the specific component is the (b1) component and the (B) component other than the specific component is one or more selected from the group consisting of the (b2) and (b3) components, When the total amount of the solvent composition is 100 parts by weight, the total content of components (A) and (b1) may be 70 parts by weight or more and 100 parts by weight or less, or 80 parts by weight or more and 99 parts by weight. parts or less, or may be 90 parts by weight or more and 98 parts by weight or less, and one or more selected from the group consisting of components (b2) to (b3), component (C), and component (D ) may be 0 to 30 parts by weight, may be 1 to 20 parts by weight, or may be 10 to 20 parts by weight. The same applies when the components (C) and (D) are limited to specific components.

The above also applies to the case where the component (b1) is limited to the component (b1-1). For example, when the component (B) contains the component (b1-1), the total content of the component (A) and the component (b1-1) when the total amount of the solvent composition is 100 parts by weight is It may be 70 parts by weight or more and 100 parts by weight or less, it may be 80 parts by weight or more and 99 parts by weight or less, or it may be 90 parts by weight or more and 98 parts by weight or less. The remainder containing component (B), component (C), and component (D) may be 0 parts by weight or more and 30 parts by weight or less, or may be 1 part by weight or more and 20 parts by weight or less. The amount may be from 20 parts by weight to 20 parts by weight. When the (b2) component is limited to the (b2-1) component or (b2-2) component, or the (b3) component is the (b3-1) component, the (b3-2) component, or the (b3-3) component The same is true for the case limited to .

When the solvent composition contains water, the content of water is preferably 1 part by weight or less, preferably 0.1 part by weight or less, when the total amount of the solvent composition is 100 parts by weight. It is more preferably more than 0 parts by weight and 0.1 parts by weight or less, and particularly preferably does not contain water. In addition, although the pH of a cleaning solvent composition having a low water content cannot usually be measured, the pH is preferably 5 or more and less than 8. The solvent composition may or may not contain a pH adjuster, but preferably does not contain a pH adjuster. Examples of such pH adjusters include caustic alkalis, ammonia alkalis, quaternary amine hydroxides, aqueous solutions of any of the above three components, and alkaline electrolyzed water. It is as described in the publication. Further, in the solvent composition, when the component (B) contains perfluorobutyl methyl ether (methyl nonafluorobutyl ether), the solvent composition contains (d1) alcohols ((d3) glycol ether, (d4) perfume component ) is preferably not included. Further, in the solvent composition, when the component (B) is one or more solvents selected from the group consisting of methyl nonafluorobutyl ether and methyl nonafluoroisobutyl ether, the solvent composition contains (d1) alcohols (( d3) Glycol ether, (d4) excluding perfume ingredients) may or may not be included, but it is preferable not to include component (d1). Further, in the solvent composition, the content of 1-bromopropane is preferably 20 parts by mass or less, more preferably 5 parts by mass or less, when the total amount of the solvent composition is 100 parts by weight. Part by mass or less is particularly preferred.

[Method for producing cleaning solvent composition]
The method for producing the solvent composition is arbitrary. The raw material components contained in the solvent composition can be produced by a known method by appropriately selecting stirring, mixing, dissolving, dispersing, or the like.

[Use of cleaning solvent composition]
Since the solvent composition is excellent in dissolving oil, flux and/or resin, it is used for cleaning the object to be cleaned to which at least one selected from the group consisting of oily stains, oil, flux and resin is adhered. It can be used as an agent.

<Oil>
Oils include mineral oils, vegetable oils, animal oils, heavy oils, waxes, silicone oils and fluorine oils. These oils are sometimes used as, for example, cutting oils, press oils, drawing oils, heat treatment oils, antirust oils, lubricating oils, metalworking oils, plastic working oils, greases, asphalts, and water-soluble oils.

Mineral oil is not particularly limited, and Pulley SF Oil (manufactured by Idemitsu Kosan Co., Ltd.) can be mentioned as a commercially available product. Vegetable oils include olive oil, linseed oil, paulownia oil, sesame oil, safflower oil, soybean oil, castor oil, cottonseed oil, coconut oil, corn oil and dehydrated castor oil. Fatty acids constituting vegetable oils are C12-C18 saturated or unsaturated fatty acids, specifically lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, and eleostearic acid. etc. Animal oils include fish oil, whale oil, lard, beef tallow, and the like. Heavy oils include asphaltenes and the like. Examples of resins include pitch, rosin, and the like. Waxes include plant-based, animal-based, petroleum-based, and synthetic hydrocarbon-based waxes.

Silicone oil is a silicone oil that is a straight-chain polymer consisting of siloxane bonds, and is mainly dimethyl silicone oil or methylphenyl silicone oil. may be those into which other organic groups are introduced. Specific examples of such silicone oils include dimethylpolysiloxane, methylphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and polyoxyethylene-methylpolysiloxane. Examples of such silicone oil include commercially available products such as KF-96L-2CS and KF-6012 manufactured by Shin-Etsu Chemical Co., Ltd.

Fluorine oil is a substance in which some or all of the hydrogen atoms in a polyalkyl ether compound are replaced with fluorine, and may contain additional atoms such as halogens such as chlorine and bromine, phosphorus, sulfur, and nitrogen. . Commercially available fluorine oils include, for example, Fomblin Y-LVAC, Y-HVAC, Y04, and YR manufactured by Solvay Solexis; J400 fluid, Varierta J25V, Varierta SJ07, Varierta SJ15, and Varierta SJ30; Krytox 1506, Krytox 1514, and Krytox 1525 manufactured by DuPont; 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 is composed mainly of a water-insoluble oil such as mineral oil or fatty oil and a surfactant, and forms a milky white emulsion when diluted with water. The soluble form also contains water-insoluble oils and surfactants, but becomes clear to translucent when diluted with water. The solution type is mainly composed of water-soluble inorganic salts, etc., and becomes transparent when diluted with water. There is also emulsion-type silicone oil in which silicone oil, a surfactant, and water are mixed.

<Flux>
The flux includes rosin-based flux. Rosin-based fluxes include non-active rosin fluxes mainly composed of rosin (resin acid mainly composed of abietic acid) and rosins such as modified rosin; , sulfates) and one or more activators selected from the group consisting of organic acids. Examples of inorganic acid salts of amine compounds include triethanolamine hydrochloride, triethylenetetraamine hydrochloride, cyclohexylamine hydrochloride, and aniline hydrochloride. Organic acids include carboxylic acids (including dicarboxylic acids) such as succinic acid, adipic acid, glutaric acid, sebacic acid and maleic acid; oxy acids (hydroxycarboxylic acids) and the like.

Flux may also be provided in the form of cream solder, which is a combination of soldering metal and rosin flux. Cream solder is a composition containing solder alloy powder, resin, activator, antioxidant, thixotropic agent, and solvent, and consists of so-called metal powder and flux components.

<Resin>
Resins include urethane resins, epoxy resins, acrylic resins, styrene resins, silicone resins, polycarbonate resins, acrylonitrile-butadiene-styrene resins, polyamide resins, polyacetal resins, polyvinyl chloride resins, polyester resins, polylactic acid resins, and polyphenylene ether resins. and polyurea resins, and urethane resins, epoxy resins, acrylic resins, and silicone resins are preferred. Also, the resin is preferably not a polyethylene terephthalate (PET) resin. The resin is preferably semi-cured or uncured. The resin is not particularly limited, and may be a thermosetting resin or a thermoplastic resin.

Urethane resins include reaction products of diisocyanates such as tolylene diisocyanate (TDI) and diphenylmethane diisocyanate (MDI) and polyols such as polypropylene glycol. When the urethane resin is foamed, it may be flexible foam, semi-rigid foam, or rigid foam. Additives blended in urethane resins include curing agents, curing accelerators, emulsifiers, foaming agents, stabilizers, plasticizers, flame retardants, antistatic agents, coloring agents, sliding modifiers, and impact resistance improvers. agents and the like. Cured urethane resins are used as heat insulating materials, coating agents for electronic substrates, and the like.

Epoxy resins include bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol AD type epoxy resin, polyglycidyl ether of polyhydric alcohol, polyglycidyl ester of polybasic acid, 3,4-epoxycyclohexyl-3′,4 '-epoxycyclohexane carboxylate, vinylcyclohexene diepoxide, cresol novolak-type epoxy resins, and epoxy resins having a hydantoin ring. Additives blended in the epoxy resin include curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, colorants, chargeability imparting agents, folds. Mobility improvers, impact modifiers, reactive diluents, and the like.
The curing agent for epoxy resins may be any one that is commonly used as a curing agent for epoxy resins. , pyromellitic anhydride and benzophenonetetracarboxylic anhydride, amines such as diaminodiphenylmethane, diaminodiphenylsulfone, metaphenylenediamine and hexamethylenetetramine, and amide resins such as polyamidoamine. Curing accelerators include, for example, tertiary amines and organic phosphorus compounds. Cured epoxy resins are used as adhesives, potting agents for electronic substrates, and the like.

Examples of acrylic resins include compounds having acryloyl groups and/or methacryloyl groups, and specific examples include methyl (meth)acrylate and 2-hydroxyethyl (meth)acrylate. Here, (meth)acrylate means at least one of acrylate and methacrylate. The acrylic resin preferably does not contain fluorine atoms, and particularly preferably does not contain halogen atoms. Additives blended in acrylic resins include curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, colorants, chargeability imparting agents, folds Mobility improvers, impact modifiers, reactive diluents, and the like. Acrylic resins are easy to process and have excellent transparency, so cured acrylic resins are used for windshields, windows for aircraft, ships, automobiles, etc., aquariums, lenses, lighting fixtures, displays, signboards, etc. .

Styrol resin is a polymer with styrene as a monomer, and its cured product is also called polystyrene. When the styrene resin is in the form of a foam, the cured foam of the styrene resin is also called styrene foam. Additives blended with styrene resin include foaming agents, curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, coloring agents, and chargeability imparting agents. agents, sliding modifiers, impact modifiers, reactive diluents, and the like. Cured products of styrene resin are used for automobile lamp lenses, covers, and the like.

A silicone resin is a highly condensed product of an organosilicon compound and has a repeating structure of dimethylsiloxane or methylphenylsiloxane. Additives blended in the silicone resin include curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, coloring agents, chargeability imparting agents, folds Additives such as mobility modifiers, impact modifiers, and reactive diluents may be included. Cured products of silicone resins are used as adhesives, coating agents, and the like.

Polycarbonate resin is one type of thermoplastic. Joints between monomer units are composed of carbonate groups (--O--(C=O)--O--). Additives blended in the polycarbonate resin include curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, colorants, chargeability imparting agents, folds Mobility improvers, impact modifiers, reactive diluents, and the like. Cured products of polycarbonate resins are widely used for members of automobiles and the like, and are used for roofs, headlamp lenses, and the like.

Acrylonitrile-butadiene-styrene resin is an acrylonitrile-styrene copolymer, a copolymer of acrylonitrile and styrene, in which polybutadiene, a rubber-like polymer, is dispersed. Mainly. Additives blended in acrylonitrile-butadiene-styrene resins include curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, colorants, antistatic agents, Examples include imparting agents, sliding modifiers, impact modifiers, reactive diluents, and the like. Cured products of acrylonitrile-butadiene-styrene resins are widely used for interior and exterior parts of automobiles and the like, and are used for wheel caps, wheel covers, dashboards and the like.

A polyamide resin is a copolymer having an amide bond, and may be synthesized by a polycondensation reaction of ω-amino acids or by a cocondensation reaction of diamines and dicarboxylic acids. Polyamide resins may be aliphatic or aromatic. Additives blended in the polyamide resin include curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, colorants, chargeability imparting agents, folds Mobility improvers, impact modifiers, reactive diluents, and the like. Cured products of polyamide resins are used for automobile parts such as engine covers, industrial valves, filaments and the like.

A polyacetal resin is a copolymer having an oxymethylene (--CH ₂ O--) structure in its unit structure, and may contain an oxyethylene unit (--CH ₂ CH ₂ O--) unit. Additives blended in the polyacetal resin include curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, coloring agents, charge imparting agents, folds Mobility improvers, impact modifiers, reactive diluents, and the like. Cured polyacetal resins are used for gears, bearings, pump parts, and the like.

Styrol resin is a polymer with styrene as a monomer, and its cured product is also called polystyrene. When the styrene resin is in the form of a foam, the cured foam of the styrene resin is also called styrene foam. Additives blended with styrene resin include foaming agents, curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, coloring agents, and chargeability imparting agents. agents, sliding modifiers, impact modifiers, reactive diluents, and the like. Cured products of styrene resin are used for automobile lamp lenses, covers, and the like.

Polyvinyl chloride resins are homopolymers of vinyl chloride or copolymers of vinyl chloride with further vinyl monomers. Additives blended in polyvinyl chloride resin include curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, coloring agents, and charge imparting agents. , sliding modifiers, impact modifiers, and reactive diluents. Cured polyvinyl chloride resins are used for building materials such as pipes and flooring materials.

Polyurea resins have urea linkages resulting from the reaction of isocyanates and polyamines. Additives blended in the polyurea resin include curing agents, curing accelerators, fillers, stabilizers, plasticizers, lubricants, flame retardants, flame retardant aids, antistatic agents, coloring agents, charge imparting agents, folds, Mobility improvers, impact modifiers, reactive diluents, and the like. Cured products of polyurea resins are used for lining materials, paints, etc. for the purpose of waterproofing.

<Oil stain>
Oil stains include oil stains, flux stains, and resin stains. The oil, flux and resin, which are raw materials for oily stains, are as described above. Oily stains include non-polar oily stains, oily stains due to polar components, and oily stains due to a plurality of components with different polarities, depending on the polarity of the oil. Also, flux contamination includes flux components such as rosin, inorganic acid salts of amine compounds, organic acids, and components partially degraded or carbonized by reflowing at high temperatures. Further, the cream solder contamination includes the flux component contamination and metal powder. Resin stains include non-polar resin stains, oily stains due to polar components, and oily stains due to a plurality of components with different polarities, depending on the polarities of the resin component and components used in combination.

[Cleaning aerosol composition]
A cleaning aerosol composition contains a solvent composition and a propellant gas. The aerosol composition maintains its state as a solution without volatilization of the solvent composition immediately after injection. Then, the sprayed aerosol composition becomes fine droplets and does not spread over a wide area, and the atomized solvent composition can be concentrated and delivered to a narrow area. That is, the solvent composition can be applied from a long distance aiming at the place to be cleaned. In addition, the contact of the solvent composition with the base material of the object to be cleaned can be suppressed, and the metal portion of the object to be cleaned can be efficiently cleaned.

The injection gas includes one or more selected from the group consisting of compressed air, _N2 , argon, _CO2 , and LPG. The form of the injection gas is not particularly limited, and may be liquefied gas or compressed gas. From the viewpoint of suppressing rapid volatilization of the solvent composition, it is preferably one or more selected from the group consisting of compressed air, N ₂ , argon and CO ₂ .

The method for producing the aerosol composition for cleaning is not particularly limited. (For example, a pail can), and then filling the container with compressed air using an air compressor or the like to turn the solvent composition into an aerosol. In addition, the description of JP-A-2018-105723 can be referred to for the cleaning aerosol composition.

[Washing method]
The method of using the solvent composition is a method of cleaning an object to be cleaned using the solvent composition, and includes bringing the solvent composition into contact with the object to be cleaned. In the cleaning method, oily dirt, oil, flux and/or resin adhering to the substrate are removed from the substrate by contacting the object to be cleaned with the solvent composition. Note that when the oily dirt includes solid dirt such as dust, dirt, etc., the solid dirt can be removed at the same time as the oily dirt is removed.

The base material is not particularly limited, but includes metals, fibers, glass, ceramics, plastics, etc., and preferably contains metals. Base materials containing metal include base materials in which metal is combined with one or more selected from the group consisting of fibers, glass, ceramics and plastics. Metals include silver, zinc, nickel, iron, tin, tin, tinplate, aluminum, copper, manganese, magnesium, stainless steel, titanium, chromium, and aluminum alloys (aluminum, copper, manganese, silicon, magnesium, chromium, iron, alloys with one or more metals consisting of titanium, vanadium, zinc and nickel, excluding aluminum die-casting), aluminum die-casting, and the like. Ceramics include alumina, zirconia, barium titanate, hydroxyapatite, silicon carbide, silicon nitride, steatite, forsterite, cordierite, and the like. Examples of plastic include PET resin (polyethylene terephthalate resin), epoxy resin, polyethylene resin, polypropylene resin, and fluorine resin. The base material may be plastic as long as the above-described greasy dirt, oil, flux or resin is removed from the base material.

The method for bringing the solvent composition into contact with the object to be cleaned is not particularly limited. Shower cleaning, ultrasonic cleaning, steam cleaning (vapor phase cleaning), running water cleaning, and combinations thereof include hand wiping cleaning, immersion cleaning, steam cleaning, and spray cleaning (spray cleaning by jetting a cleaning aerosol composition). including), a combination of immersion cleaning and ultrasonic cleaning, and a combination of immersion cleaning and steam cleaning are preferred. Hand wiping cleaning is usually performed by rubbing a paper, cloth, etc. impregnated with the composition with a hand while contacting the area where oily dirt and / or oil adheres, or by rubbing with a paper, cloth, etc. impregnated with the composition. by hand rubbing through a plate or stick while in contact with the greasy and/or oily area. Spray cleaning by injecting the cleaning aerosol composition is carried out by spraying the cleaning aerosol composition as an aerosol onto the area to which oily dirt and/or oil adheres.

When the method for cleaning 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; (1B): A cleaning method comprising the 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).

[Washing system used in the washing method]
The cleaning system (cleaning device) used in the cleaning method is not particularly limited and can be selected as appropriate. In addition, when the method for cleaning the object to be cleaned using the solvent composition is a combination of immersion cleaning and steam cleaning, the cleaning system (cleaning device) used in the cleaning method may include the cleaning agent and the object to be cleaned. and a steam bath for generating vapor of the cleaning agent. Further, specific examples of the cleaning system used in the cleaning method include the following cleaning systems 1 to 4.

(1) Cleaning system 1
The washing system 1 is a single-tank washing machine. The cleaning system 1 contains a solvent composition containing components (A) and (B), a boiling tank in which an object to be cleaned is immersed, and vapor of the solvent composition generated by the boiling tank. The cleaning system includes a recovery unit that liquefies and recovers the vapor of the solvent composition, and a water separator that separates water from the recovered liquid recovered by the recovery unit and extracts the solvent composition.

A schematic of a cleaning system 1 is shown in FIG. The cleaning system 1 includes a boiling tank (11 in FIG. 1) containing a solvent composition (1 in FIG. 1) containing components (A) and (B), and a solvent composition generated from the boiling tank. A recovery unit (for example, 21 and 22 in FIG. 1) that liquefies and recovers the vapor of the substance (2 in FIG. 1), and the solvent composition by separating water from the recovered liquid recovered by the recovery unit It is equipped with a water separator (23 in FIG. 1) for extracting substances and supplying the extracted solvent composition to the boiling tank. In FIG. 1, solid arrows indicate the flow of the solvent composition.

The boiling tank is a tank for boiling and washing the object to be washed. A boiling tank is sometimes called a vapor tank or a steam tank. The boiling tank is equipped with a heater (24 in FIG. 1) for maintaining the temperature at which the vapor of the solvent composition is generated or higher (preferably at the boiling point or higher of the solvent composition). The boiling tank may have an ultrasonic vibrator that applies ultrasonic vibrations to the cleaning liquid.

In the washing system 1, a pump and filter circuit can be installed in the boiling tank. By providing the cleaning system 1 with a pump and filter circuit, if the dirt to be removed from the items to be cleaned is solid, it tends to avoid the accumulation of dirt in the boiling bath.

Above the boiling tank, a recovery section is provided for liquefying and recovering the vapor of the solvent composition generated by the boiling tank. The recovery unit is not particularly limited as long as it has means for liquefying the vapor of the solvent composition and means for supplying the liquefied components to the water separator.

A means for liquefying the solvent composition vapor is not particularly limited, but a cooling pipe (21 in FIG. 1) is preferable. Cooling pipes are a means of lowering the temperature of the vapor of the solvent composition to liquefy it. By providing the cooling pipe in the cleaning system, the solvent composition is further reduced from being released from the cleaning system to the outside. The number of turns of the cooling pipe is preferably 3 or more, more preferably 4 or more, still more preferably 5 or more, and particularly preferably 6 or more.

Means for supplying the liquefied solvent composition to the water separator is not particularly limited, but a trough (22 in FIG. 1) is preferable. A trough is provided to supply the water separator with a solvent composition that has been liquefied by a cooling pipe or the like. Here, the liquid of the solvent composition liquefied by means for liquefying the vapor of the solvent composition and supplied to the water separator is referred to as the recovered liquid.

The solvent composition is then extracted by a water separator, which will be described later, and reused as a regenerated liquid.

A water separator is provided to separate the water from the recovered liquid to extract the solvent composition and return it to the boiling tank. The means for water separation using a water separator is not particularly limited as long as it can separate water from the recovered liquid and extract the solvent composition, and specific gravity separation, membrane separation and the like can be mentioned. The water separator preferably extracts the solvent composition by gravity separation.

An example of the structure of the water separator when the recovery unit includes a cooling pipe and a gutter and the water separation means by the water separator is gravity separation is disclosed in JP-A-2015-217319.

The cleaning system 1 may also have supply means, not shown, for shower cleaning with a solvent composition. After the object to be cleaned is boiled and/or steam-cleaned, the cleaning effect tends to be further improved by shower-cleaning with a solvent composition to cause the composition to collide with the surface of the object to be cleaned.

<Cleaning method using cleaning system 1>
The cleaning method using the cleaning system 1 includes the following steps: (1A) a step of immersing the object to be cleaned in a boiling tank and boiling it for cleaning; and (1B) placing the object to be cleaned in a steam area generated from the boiling tank. and steam cleaning.

Step (1A) is a step of immersing the object to be cleaned in a boiling tank and boiling and cleaning. In FIG. 1, the object to be cleaned (S in FIG. 1) is moved from the cleaning start position S1 to the cleaning start position S2 and immersed in the solvent composition. In step (1A), the article to be cleaned is brought into contact with the liquid of the composition. In the boiling tank, the solvent composition is brought to a boiling state, that is, in boiling cleaning, the solvent composition is heated by heating means such as a heater.

In boiling cleaning, in order to enhance the cleaning effect, immersion is preferably combined with means such as stirring, shaking, ultrasonic vibration, or air bubbling, and more preferably combined with ultrasonic vibration.

Step (1B) is a step of placing the object to be cleaned in a steam area generated from the boiling tank and steam cleaning. In FIG. 1, the object to be cleaned is moved from position S2 to position S4, which is the upper part of the boiling tank, and placed in the steam area. The vapor area consists of vapors of the solvent composition. In step (1B), steam cleaning is performed by contacting the object to be cleaned with steam generated from the boiling tank. As a result, the dirt component adhering to the object to be cleaned is exchanged with the solvent composition in the steam area. In step (1B), since the object to be cleaned and the solvent composition come into contact with each other, rinsing (vapor rinsing) is performed by a step of steam cleaning. After that, the object to be cleaned is moved to the cleaning end position S5, and the cleaning is completed.

(2) Cleaning system 2
The washing system 2 is a two-tank washing machine. The cleaning system 2 contains a solvent composition containing components (A) and (B), an ultrasonic cleaning tank in which an object to be cleaned is immersed and cleaned, and steam for generating steam of the solvent composition. a tank, a recovery unit that liquefies and recovers the vapor of the solvent composition generated by the steam bath, a water separator that separates water from the recovered liquid recovered by the recovery unit and extracts the solvent composition, It is a cleaning system comprising

A schematic of the cleaning system 2 is shown in FIG. The cleaning system 2 preferably includes an ultrasonic cleaning bath (12 in FIG. 2) containing a solvent composition set (1 in FIG. 2) and a solvent composition (3 in FIG. 2). A steam bath (13 in FIG. 2) and a recovery unit (for example, 21 and 22 in FIG. 2) for liquefying and recovering the solvent composition steam (2 in FIG. 2) generated from the steam bath , a water separator (23 in FIG. 2) that separates water from the recovered liquid recovered by the recovery unit, extracts the solvent composition, and supplies the extracted solvent composition to the ultrasonic cleaning tank. It has Cleaning system 2 corresponds to cleaning system 1 additionally comprising an ultrasonic cleaning bath, except that the solvent composition is returned from the water separator to the ultrasonic cleaning bath. In FIG. 2, solid arrows indicate the flow of the solvent composition.

The steam bath in cleaning system 2 is as described above for cleaning system 1, including preferred ones.
The ultrasonic cleaning bath preferably has an ultrasonic vibrator (25 in FIG. 2) for applying ultrasonic vibrations. Moreover, although not shown, the ultrasonic cleaning bath may be equipped with a heater for adjusting the temperature of the composition. In the cleaning system 2, if the dirt to be cleaned is solid matter, the ultrasonic cleaning bath may be provided with a pump and filter circuit for the purpose of avoiding the accumulation of dirt.

In the cleaning system 2, the solvent composition extracted by the water separator is supplied to the ultrasonic cleaning tank. Further, the liquid level of the ultrasonic cleaning bath is higher than the liquid level of the steam bath, so that the cleaning liquid overflows from the ultrasonic cleaning bath into the steam bath.

<Cleaning method using cleaning system 2>
The cleaning method using the cleaning system 2 includes the following steps: (2A) a step of immersing the object to be cleaned in an ultrasonic cleaning bath and ultrasonically cleaning it; and (2B) steam generated from the steam bath on the object to be cleaned. placing in an area and steam cleaning.

Step (2A) is a step of ultrasonically cleaning the object to be cleaned (S in FIG. 2) by immersing it in an ultrasonic cleaning tank. The frequency of the ultrasonic waves is not particularly limited and can be set as appropriate.

Step (2B) is a step of placing the object to be cleaned in a steam area generated from a steam bath and steam cleaning. In FIG. 2, the object to be cleaned is moved from position S2 to position S4 above the steam bath and placed in the steam area. Steam cleaning is performed by bringing the object to be cleaned into contact with steam generated from the boiling tank. The conditions in step (2B), including preferred ones, are as described above in step (1B). After that, the object to be cleaned is moved to the cleaning end position S5, and the cleaning is completed.

(3) Cleaning system 3
The washing system 3 is a three-tank washing machine. The cleaning system 3 contains a solvent composition containing components (A) and (B), an ultrasonic cleaning tank in which an object to be cleaned is immersed and cleaned, and a solvent composition that contains the object to be cleaned. is immersed and rinsed, a steam bath for generating vapor of the solvent composition, a recovery unit for liquefying and recovering the vapor of the solvent composition generated from the steam bath, and recovered by the recovery unit and a water separator that separates water from the recovered liquid, extracts the solvent composition, and returns it to the rinse tank.

A schematic of the cleaning system 3 is shown in FIG. The cleaning system 3 preferably includes an ultrasonic cleaning tank (12 in FIG. 3) containing a solvent composition (1 in FIG. 3) and a rinse tank (4 in FIG. 3) containing a rinse liquid (4 in FIG. 3). 3, 14), a steam bath (FIG. 3, 13) containing the solvent composition (FIG. 3, 3), and a vapor of the solvent composition generated from the steam bath (FIG. 3, 2 ) is liquefied and recovered, and water is separated from the recovered liquid recovered by the recovery unit (for example, 21 and 22 in FIG. 3) to extract the solvent composition and extracted A water separator (23 in FIG. 3) is provided to supply the solvent composition to the rinse tank. The cleaning system 3 corresponds to the cleaning system 2 which additionally comprises a rinsing bath. In FIG. 3, solid arrows indicate the flow of the solvent composition.

The ultrasonic cleaning bath and steam bath in the cleaning system 3 are as described above for the cleaning system 1 and cleaning system 2 . The rinse bath is a bath for rinsing the object to be cleaned. The rinse liquid is a solvent composition. Although not shown, the rinsing tank may be equipped with an ultrasonic oscillator and may be equipped with a heater for adjusting the temperature of the rinsing liquid. From the viewpoint of preventing reduction of the rinse liquid due to generation of steam, the temperature of the rinse liquid in the rinse tank is preferably lower than the boiling point of the rinse liquid. If the dirt to be removed from the items to be washed is solid, the rinse bath may be equipped with a pump and filter circuit to avoid dirt accumulation.

As one form of cleaning system 3, the solvent composition extracted by the water separator flows into a rinse tank. Further, the liquid level of the rinse tank is higher than the liquid level of the ultrasonic cleaning tank, so that the rinse liquid overflows from the rinse liquid tank into the ultrasonic cleaning tank. Furthermore, the liquid level in the ultrasonic cleaning bath is higher than the liquid level in the steam bath so that the cleaning liquid overflows from the ultrasonic cleaning bath into the steam bath.

<Cleaning method using cleaning system 3>
The cleaning method using the cleaning system 3 includes the following steps: (3A) immersing the object to be cleaned in an ultrasonic cleaning tank to perform ultrasonic cleaning; and (3C) placing the object to be cleaned in a steam area generated from a steam bath for steam cleaning.

Step (3A) is a step of ultrasonically cleaning the object to be cleaned by immersing it in an ultrasonic cleaning tank. Conditions in step (3A), including preferred ones, are as described above for step (2A).

Step (3B) is a step of immersing the object to be cleaned in a rinse tank and rinsing it. In FIG. 3, the object to be cleaned is moved from position S2 to position S3 and immersed in the rinse liquid. The rinsing time corresponding to the contact time between the rinsing liquid and the object to be cleaned is not particularly limited, and is preferably 1 second to 60 minutes, more preferably 10 seconds to 30 minutes. preferable. In the step (3B), the detergent composition and dirt components slightly adhering to the object to be washed are exchanged with the rinsing liquid.

Step (3C) is a step of placing the object to be cleaned in a steam area generated from a steam bath and steam cleaning. In FIG. 3, the object to be cleaned is moved from position S3 to position S4 above the steam bath. Steam cleaning is performed by bringing the object to be cleaned into contact with steam generated from a steam bath. The steam cleaning conditions are as described above in step (1B).

(4) Cleaning system 4
The washing system 4 is a one-cycle washing machine. The cleaning system 4 contains a solvent composition composition containing components (A) and (B), an ultrasonic cleaning tank in which an object to be cleaned is immersed, and the object to be cleaned is immersed and cleaned; a steam bath for generating vapor of the solvent composition, a recovery unit for liquefying and recovering the steam of the solvent composition generated by the steam bath, and separating water from the recovered liquid recovered by the recovery unit to separate the solvent composition and a water separator for extracting matter.

A schematic of the cleaning system 4 is shown in FIG. The cleaning system 4 preferably includes an ultrasonic cleaning bath (12 in FIG. 4) containing a solvent composition set (1 in FIG. 4) and a solvent composition (3 in FIG. 4). a steam bath (13 in FIG. 4), and a recovery part (for example, 21 and 22 in FIG. 4) for recovering and liquefying the solvent composition steam (2 in FIG. 4) generated from the steam bath; Equipped with a water separator (23 in FIG. 4) that separates water from the recovered liquid recovered by the unit, extracts the solvent composition, and supplies the extracted solvent composition to the ultrasonic cleaning tank. there is The cleaning system 4 corresponds to the cleaning system 1 further comprising an ultrasonic cleaning bath, except that the solvent composition is returned from the water separator to the ultrasonic cleaning bath and cleaned in the ultrasonic cleaning bath. Solid arrows in FIG. 4 indicate the flow of the solvent composition.

The ultrasonic cleaning bath and steam bath in cleaning system 4 are as described above for cleaning systems 1 to 3, including preferred ones.

In the cleaning system 4, the solvent composition extracted by the water separator is supplied to the ultrasonic cleaning bath. Further, the liquid level of the ultrasonic cleaning tank is higher than the liquid level of the steam tank, so that the cleaning liquid overflows from the ultrasonic cleaning tank into the steam tank.

<Cleaning method using cleaning system 4>
The cleaning method using the cleaning system 4 includes the following steps: (4A) a step of immersing the object to be cleaned in an ultrasonic cleaning bath and ultrasonically cleaning it; and (4B) steam generated from the steam bath on the object to be cleaned. placing in an area and steam cleaning.

Step (4A) is a step of ultrasonically cleaning the object to be cleaned (S in FIG. 4) by immersing it in an ultrasonic cleaning bath. Conditions in step (4A), including preferred ones, are as described above for step (2A).

Step (4B) is a step of placing the object to be cleaned in a steam area generated from a steam bath and steam cleaning. In FIG. 4, the object to be cleaned is moved from position S2 to position S4 above the ultrasonic cleaning tank and placed in the steam area. Steam cleaning is performed by bringing the object to be cleaned into contact with steam generated from a steam bath. Conditions in step (4B), including preferred ones, are as described above for step (2B). After that, the object to be cleaned is moved to the cleaning end position S5, and the cleaning is completed.

Each washing system may be equipped with a distillative regenerator.

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

(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 compositions (parts by weight) shown in the table.

1. (A) 1-bromo-2-methylpropane (a-1) 1-bromo-2-methylpropane

2. (B) Fluorinated solvent (b1) Hydrofluorocarbons (b1-1) 1,1,1,3,3-pentafluorobutane (manufactured by Solvay Japan Co., Ltd., SOLKANE (registered trademark) 365mfc)
(b1-2) HFC-43-10mee: 1,1,1,2,2,3,4,5,5,5-decafluoropentane 90% by mass or more and 100% by mass or less (Mitsui Chemours Fluoro Products Co., Ltd. made by Vertrel™ XF)
(b1-3) HFC-c447ef: 1,1,2,2,3,3,4-heptafluorocyclopentane 98% or more (manufactured by Nippon Zeon Co., Ltd., Zeorora (registered trademark) H)
(b2) Hydrofluoroethers (b2-1) 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (AGC Co., Ltd., Asahiklin AE-3000)
(b2-2) A mixture of 20 to 80 parts by weight of methyl nonafluorobutyl ether and 20 to 80 parts by weight of methyl nonafluoroisobutyl ether (manufactured by 3M Japan Ltd., 3M (trademark) Novec (trademark) 7100 high functional liquid)
(b2-3) 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane (manufactured by 3M Japan Ltd., 3М ( Trademark) Novec™ 7300 High Performance Fluid)
(b2-4) Novec™ 7200: a mixture of ethyl nonafluoroisobutyl ether and ethyl nonafluorobutyl ether (manufactured by 3M Japan Ltd., 3M™ Novec™ 7200 high-performance liquid)
(b3) Hydrofluoroolefins (b3-1) cis-1-chloro-3,3,3-trifluoropropene (CELEFIN (registered trademark) 1233Z, HCFO-1233zd (Z), manufactured by Central Glass Co., Ltd.)
(b3-2) AMOLEA® AS-300 ((E)-1-chloro-2,3,3-trifluoropropene and (Z)-1-chloro-2,3,3-trifluoropropene 99 A mixture of more than 1% by weight and less than 1% by weight of stabilizer) (manufactured by AGC Co., Ltd.)
(b3-3) (Z)-1,1,1,4,4,4-hexafluoro-2-butene (Opteon (trademark) SF33, HFO-1336mzz (Z) 90% by mass or more and 100% by mass or less) ( Mitsui Chemours Fluoro Products Co., Ltd.)
(b3-4) SF10: Opteon (trademark) SF10 (methoxy perfluoroheptene isomer mixture exceeding 99% by mass) (manufactured by Mitsui Chemours Fluoro Products Co., Ltd.)

3. (C) Stabilizer (c1) Epoxides (c1-1) 1,2-epoxybutane (manufactured by Tokyo Chemical Industry Co., Ltd.)
(c1-2) cyclopentene oxide (manufactured by Tokyo Chemical Industry Co., Ltd.)
(c1-3) Methyl glycidyl ether (manufactured by Tokyo Chemical Industry Co., Ltd.)
(c1-4) Ethyl glycidyl ether (manufactured by Tokyo Chemical Industry Co., Ltd.)
(c1-5) 1,2-epoxycyclohexane (manufactured by Tokyo Chemical Industry Co., Ltd.)
(c1-6) 1,2-epoxyhexane (manufactured by Tokyo Chemical Industry Co., Ltd.)
(c1-7) butyl glycidyl ether (manufactured by Tokyo Chemical Industry Co., Ltd.)
(c1-8) 1,2-epoxypentane (manufactured by Tokyo Chemical Industry Co., Ltd.)
(c1-9) isopropyl glycidyl ether (manufactured by Tokyo Chemical Industry Co., Ltd.)
- (c2) nitroalkanes (c2-1) nitromethane (manufactured by Tokyo Chemical Industry Co., Ltd.)
(c2-2) Nitroethane (manufactured by FUJIFILM Wako Pure Chemical Industries, Ltd.)
(c3) cyclic ethers (excluding (c1) epoxides)
(c3-1) 1,3-dioxolane (manufactured by Tokyo Chemical Industry Co., Ltd.)

4. (D) Other ingredients (d1) alcohols (excluding (d3) glycol ethers and (d4) perfume ingredients)
(d1-1) Solmix AP-1 (manufactured by Nippon Alcohol Sales 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)
(d1-2) 1-propanol (manufactured by Tokyo Chemical Industry Co., Ltd.)
- (d2) esters (d2-1) dimethyl carbonate (manufactured by Tokyo Chemical Industry Co., Ltd.)
(d2-2) γ-butyrolactone (manufactured by Tokyo Chemical Industry Co., Ltd.)
(d3) glycol ethers (d3-1) propylene glycol monomethyl ether (manufactured by Tokyo Chemical Industry Co., Ltd., 1-methoxy-2-propanol)
・ (d4) Perfume component (d4-1) D-limonene ((+)-limonene manufactured by Tokyo Chemical Industry Co., Ltd.)
- (d5) hydrocarbon (d5-1) methylcyclohexane (manufactured by Tokyo Chemical Industry Co., Ltd.)

5. Oil, etc. (1) Mineral oil (1): Pulley SF oil (manufactured by Ozawa Industry Co., Ltd.) petroleum hydrocarbon (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- less than 1% by weight of di-tert-butyl-4-cresol)
(2) Mineral oil (2): Daphne Marg Plus ST25 (manufactured by Idemitsu Kosan Co., Ltd.) (90% by weight or more and 100% by weight or less of hydrogenated low-viscosity paraffin, 1% by weight or more and less than 10% by weight of sulfurized oil, hydrogenated medium viscosity Paraffin 1% by weight or more and less than 10% by weight, 2,6-di-tert-butyl-4-cresol 0.1% by weight or more and less than 1% by weight, solvent dewaxed heavy paraffinic petroleum distillate 0.1% by weight or more1 % by weight, less than 2% by weight of lubricating oil additives)
(3) Vegetable oil: Edible olive oil (AJINOMOTO olive oil extra virgin, manufactured by J-Oil Mills Co., Ltd.)
(4) Silicone oil: dimethyl silicone oil 350CS (Dow Corning Toray Co., Ltd., DOW CORNING (registered trademark) 360 MEDICAL FLUID, viscosity 350 cSt)
(5) Mackey pen (felt pen): Permanent marker High Mackey Black (Zebra Co., Ltd.)

[Test Example 1] Drying property test About 100 mg of each solvent composition is weighed out on a SUS304 plate (manufactured by Iwata Seisakusho Co., Ltd., 100 mm x 100 mm x 0.1 mm) and allowed to stand at room temperature (about 25°C) to dry completely. measured the time to The drying times of the compositions of Examples and Comparative Examples and compositions obtained by removing only the component (B) from each composition were evaluated as follows. In the case of ⊚ to ●, it can be said that the drying property is improved.
A: The drying time of the composition of each example and comparative example was 1/4 or less of the drying time of the composition obtained by removing only the component (B) from each composition.
○ ~ ◎: The drying time of the composition of each example and comparative example was more than 1/4 to 1/2 or less of the drying time of the composition obtained by removing only the component (B) from each composition. .
○: The drying time of the composition of each example and comparative example was more than 1/2 to 3/4 or less of the drying time of the composition obtained by removing only the component (B) from each composition.
●: The drying time of the composition of each example/comparative example was more than 3/4 and less than 1/1 of the drying time of the composition obtained by removing only the component (B) from each composition.
x: The drying time of the composition of each example/comparative example was longer than the drying time of the composition obtained by removing only the component (B) from each composition.

[Test Example 2] Liquid coloring confirmation test Each metal plate cut to a predetermined size (1.0 mm × 8.0 mm × 60 mm, ADC12 only 2.0 mm × 8.0 mm × 60 mm, 3 Φ ( 3 mm diameter holes) were tested. After the surface of each metal plate was polished with #220 metal sandpaper, the test piece was immersed in acetone and subjected to ultrasonic waves (oscillation frequency 40 kHz, high frequency output 130 W) for 5 minutes to remove metal powder. The ultrasonically treated test piece was air-dried and used for the test.

100 ml of each solvent composition was placed in a round-bottomed flask connected to a cooling tube and heated with a mantle heater. One test piece (five test pieces only in the case of SUS304) passed through a nylon thread was inserted from the top of the cooling pipe, and the test piece was fixed so as to straddle the gas phase and liquid phase. Reflux was carried out for 5 hours. The degree of coloring of each composition after refluxing was evaluated as follows based on JIS K 0071-1 (Color test method for chemical products-Part 1: Hazen unit color number). In addition, in the results of "Test Example 2" in each table, "-" indicates that the test was not performed.

(metal plate)
Iron: SPCC (JIS, G, 3141) (manufactured by Iwata Manufacturing Co., Ltd.)
Stainless steel: SUS304 (JIS, G, 4305) (manufactured by Iwata Manufacturing Co., Ltd.)
Copper: C1020P (JIS, H, 3100) (manufactured by Testpiece Co., Ltd.)
Aluminum: A1100P (JIS, H, 4000) (manufactured by Testpiece Co., Ltd.)
Aluminum die-cast: ADC12 (JIS, H, 5302) (manufactured by Testpiece Co., Ltd.)

(criterion)
A: The liquid was thinner than APHA50. Also, no significant corrosion reaction was observed in the metal plate.
◯ to ⊚: The liquid was as thick as APHA50, or thicker than APHA50 and thinner than APHA100. Also, no significant corrosion reaction was observed in the metal plate.
○: The liquid was as thick as APHA100, or thicker than APHA100 and thinner than APHA200. Also, no significant corrosion reaction was observed in the metal plate.
Δ: The liquid was as thick as APHA200, or thicker than APHA200, and thinner than APHA500.
x: The liquid was as thick as APHA500 or thicker than APHA500, or the test was stopped halfway due to a corrosive reaction between the liquid and metal.

[Test Example 3] Closed tag flash point measurement Using a closed tag flash point measurement atg-8l (Tanaka Scientific Instruments Manufacturing Co., Ltd.), flash point measurement was performed from -20 ° C. to a temperature at which the temperature stopped rising. .
(criterion)
○: Flash point was not detected. x: A flash point was detected.

[Test Example 4] Degreasing Performance Confirmation Test Mineral oil (1), silicone oil, and vegetable oil were subjected to an oil dissolution test and an oil cleaning test to evaluate the degreasing performance.

(Oil dissolution test)
0.15 g of oil was placed in a test tube (capacity: 4 ml, 10×75 mm, PYREX®). Subsequently, 3 g of the solvent composition at room temperature (about 20° C.) was added to the test tube. The oil solubility was evaluated by observing the state of the oil when it was stirred 10 times using a Pasteur pipette.

(Oil cleaning test)
A SUS304 plate (manufactured by Iwata Seisakusho Co., Ltd., 35 mm x 15 mm x 0.1 mm) was immersed in each oil and pulled out after 5 minutes as a cleaning test sample. An 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 solvent composition in a 100 mL beaker, seal it with aluminum foil, immerse it in an ultrasonic cleaner, adjust the liquid temperature of the cleaning solvent composition to about 40° C., and then apply ultrasonic waves. The cleaning test samples were immersed in the cleaning solvent composition under generation. After 1 minute, the test sample was taken out from the beaker and immersed in 50 mL of a rinsing solvent composition having the same composition as the cleaning solvent composition at a liquid temperature of about 40° C. prepared in advance in another 100 mL beaker under the generation of ultrasonic waves. let me After 1 minute, the test sample surface was observed with the naked eye or with an HDMI digital stereoscopic microscope STZ-161-TLED1080М (manufactured by Shimadzu Rika Co., Ltd.). In the case of ◎ to ○, it can be used as a cleaning agent.

(criterion)
⊚: Uniformly transparent in the oil dissolution test, and no oil stain was observed in the oil washing test.
◯: White turbidity or separation was observed in the oil dissolution test, but oil staining was not observed in the oil washing test.
x: Cloudiness or separation was observed in the oil dissolution test, and clear oil staining was observed in the oil cleaning test.

[Test Example 5] Hand wiping test 0.1 g of mineral oil (1) is dropped on the surface of a SUS304 plate (manufactured by Iwata Seisakusho Co., Ltd., 100 mm × 100 mm × 0.1 mm), or a straight line is drawn with a Mackie pen, and a washing test is performed. was taken as a sample.

A pair of two-ply tissue paper (manufactured by Oji Nepia Co., Ltd.) with a size of 65 mm long and 72 mm wide was folded in four and impregnated with the cleaning solvent composition of each example. I squeezed once with my index finger. A tissue paper impregnated with each solvent composition was brought into contact with the surface of the SUS304 plate and wiped by hand rubbing.
In the case of ◎ to ●, it can be used as a cleaning agent.

(Mineral oil (1))
A: The surface of the SUS plate was visually cleaned by wiping twice.
Good: The surface of the SUS plate was visually cleaned by wiping three times.
●: The surface of the SUS plate was visually cleaned by wiping four times.
x: Even after wiping off four times, there was obvious oil staining.

(Mckey pen)
⊚: After wiping three times, no mark of the Mackie pen was visually observed, and the surface was clean.
◯: After wiping 4 times, no trace of the Mackie pen was visually observed, and the surface was clean.
●: After wiping 5 times, no trace of the Mackie pen was visually observed, and the surface was clean.
x: Even after wiping off 5 times, clear traces of the Mackie pen were observed.

[Test Example 6] Flux cleaning test (1) Preparation of cleaning test sample On a galvanized iron plate (equivalent to JIS G3302, length 30 mm, width 30 mm, thickness 0.3 mm), through a metal mask, for SMT (surface mounting) A lead-free solder paste was applied, 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. It was further cooled to room temperature (about 20° C.) and allowed to stand for 2 days to obtain a cleaning test sample (object to be cleaned with cream solder stains containing rosin).

(2) Cleaning Test An 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 solvent composition in a 100 mL beaker, seal with aluminum foil, immerse in an ultrasonic cleaner, adjust the temperature of the solvent composition to about 40 ° C., and then wash under ultrasonic generation. A test sample was immersed in the solvent composition. After 3 minutes, the test sample was taken out from the beaker and immersed in 50 mL of a rinsing solvent composition having the same composition as the solvent composition at a liquid temperature of about 40° C. prepared in advance in another 100 mL beaker under the generation of ultrasonic waves. After 1 minute, the test sample surface was observed with the naked eye after being pulled out of the liquid and air-dried. In the case of ⊚ to ●, the level was such that there was no adverse effect on actual use.

⊚: No white residue was observed under a microscope.
Good: No white residue was observed with the naked eye, but a very small amount of white residue was observed under a microscope. However, the level was such that there was no adverse effect on actual use. In addition, it became (double-circle) by extending the time of said ultrasonic cleaning from 3 minutes to 6 minutes.
●: A very small amount of white residue was observed with the naked eye, but the level was such that there was no adverse effect on actual use. In addition, it became (double-circle) by extending the above-mentioned ultrasonic cleaning time from 3 minutes to 9 minutes.
x: A white residue was easily observed with the naked eye, and the level was such that it had an adverse effect on practical use.

[Test Example 7] Uncured resin dissolution test Uncured epoxy resin (Huntsman Japan Co., Ltd., high performance epoxy strong adhesive Araldite (registered trademark) in a PET cup (Takeuchi Sangyo Co., Ltd., plastic cup PET clear cup) with a capacity of 210 ml ) Add 1.0 g of uncured urethane resin (Henkel Japan Co., Ltd., LOCTITE urethane foam green foam), and immediately add 10 g of each solvent composition. The solubility was evaluated after mixing 10 times with disposable chopsticks. In the case of any resin, no resin adhered to the inner wall of the cup after each solvent composition was transferred from the cup to another container, so it can be used as a cleaning agent. In terms of dissolving power, it is most desirable for the test result to be ◎, but in the case of ○ or ●, a part of the resin is removed from each solvent composition by filtering each solvent composition after washing. In some cases it may be possible to remove it and in some cases it may be easier to reuse each solvent composition.

(epoxy solubility)
(double-circle): It mixed and became transparent, or became turbid.
◯: Partially not mixed, but the insoluble matter became fine lumps and floated in the liquid.
●: Some of the insoluble matter did not mix, but the insoluble material became large lumps and floated in the liquid.
x: Not mixed and adhered to the inner wall of the cup.
(urethane solubility)
A: Dissolved and became transparent.
◯: Mixed, but cloudy.
●: Some of the insoluble matter did not mix, but the insoluble matter became spherical and floated in the liquid.
x: Not mixed and adhered to the inner wall of the cup.

[Test Example 8] Degreasing and Washing Test Each test piece (silver, zinc, magnesium PET, PP) was immersed in mineral oil (1), and pulled out after 5 minutes to serve as a washing test sample. An ultrasonic cleaner US-13KS (oscillation frequency: 38 kHz, high frequency output: 360 W) manufactured by SND Co., Ltd. was filled with tap water. 50 mL of the cleaning solvent composition was placed in a 100 mL beaker, and the cleaning test sample was immersed in the cleaning solvent composition at a liquid temperature of about 20° C. under the generation of ultrasonic waves. After 1 minute, the test sample was taken out from the beaker and immersed in 50 mL of a rinsing solvent composition having the same composition as the cleaning solvent composition at a liquid temperature of about 20° C. prepared in advance in another 100 mL beaker under the generation of ultrasonic waves. rice field. After 1 minute, the test sample surface was observed with the naked eye after being pulled out of the liquid and air-dried.
(Test pieces)
Silver: 10 mm × 10 mm × 0.1 mm (manufactured by Kennis Co., Ltd.)
Zinc: 14 mm × 45 mm × 0.5 mm (manufactured by Kennis Co., Ltd.)
Magnesium: 14 mm × 45 mm × 0.5 mm (manufactured by Kennis Co., Ltd.)
PET: 10 mm × 45 mm × 2 mm (manufactured by Takiron C.I. Co., Ltd.)
PP: 10 mm × 45 mm × 1 mm (manufactured by AS ONE Corporation)
(criterion)
○: No oil stain was observed.
x: Clear oil stain was observed.

[Test Example 9] Steam cleaning test <Preparation of object to be cleaned>
1 mg of mineral oil (2) or silicone oil was dropped on the surface of a SUS304 plate (manufactured by Iwata Seisakusho Co., Ltd., 10 mm × 10 mm × 0.1 mm) and left for 1 hour to obtain a cleaning test sample ( object to be washed) was obtained.

<Washing method>
Put 65 L of the solvent composition of each example in an ultrasonic cleaning tank (liquid capacity: 65 L) in a two-tank manual cleaning device (manufactured by Muramatsu Co., Ltd.), and put the solvent composition of each example in a steam tank (liquid capacity: 48 L). 48L was added. The sample for the cleaning test was immersed in an ultrasonic cleaning bath, and ultrasonic waves (600 W, 40 kHz) were applied for 60 seconds to perform immersion cleaning (liquid temperature is normal temperature, 5 to 5 times higher than the liquid temperature in the steam bath). 20°C lower). Subsequently, the test sample was exposed to steam generated by boiling the steam bath to about the boiling point using a heater for 60 seconds and then removed. The apparatus used in this test method corresponds to the cleaning system 2 described above.

(Test pieces)
Iron: 1.0 mm × 8.0 mm × 60 mm, SPCC (JIS, G, 3141) (manufactured by Iwata Manufacturing Co., Ltd.)
Stainless steel: 1.0 mm × 8.0 mm × 60 mm, SUS304 (JIS, G, 4305) (manufactured by Iwata Manufacturing Co., Ltd.)
Copper: 1.0 mm × 8.0 mm × 60 mm, C1020P (JIS, H, 3100) (Testpiece Co., Ltd.)
Aluminum: 1.0 mm × 8.0 mm × 60 mm, A1100P (JIS, H, 4000) (Testpiece Co., Ltd.)
Aluminum die-cast: 2.0 mm x 8.0 mm x 60 mm, ADC12 (JIS, H, 5302) (Testpiece Co., Ltd.)
Silver: 10 mm × 10 mm × 0.1 mm (manufactured by Kennis Co., Ltd.)
Zinc: 14 mm × 45 mm × 0.5 mm (manufactured by Kennis Co., Ltd.)
Magnesium: 14 mm × 45 mm × 0.5 mm (manufactured by Kennis Co., Ltd.)
PET: 10 mm × 45 mm × 2 mm (manufactured by Takiron C.I. Co., Ltd.)
PP: 10 mm × 45 mm × 1 mm (manufactured by AS ONE Corporation)

<Evaluation of washability>
After air-drying the test sample, the surface of the test sample was observed with the naked eye or using an HDMI digital stereomicroscope STZ-161-TLED1080М (manufactured by Shimadzu Rika Co., Ltd.).
(criterion)
A: No residual oil was observed with the naked eye or by microscopic observation.
◯: Remaining oil was not observed with the naked eye. A very small amount of residual oil was observed by microscopic observation, but there was no practical problem.
●: An extremely small amount of residual oil was observed with the naked eye.
x: Clear residual oil was observed with the naked eye.

[Test Example 10] Aerosol cleaning test 0.1 g of mineral oil (2) was dropped on 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 Marufutsu No. 3 (horse hair) was applied. was applied evenly using
After putting 300 ml of each solvent composition into an aluminum refillable air spray can A1631D (capacity 650 ml, manufactured by FIRSTINFO TOOLS CO., LTD.), nitrogen gas was filled (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 visually removed from the section to which the oil was applied.
x: Remaining oil was visually observed in the section to which the oil was applied.

[Test Example 11] Rust suppression test (1)
An iron test piece (SPCC (JIS, G, 3141), manufactured by Iwata Seisakusho Co., Ltd.) was cut into 5 mm × 30 mm × 0.1 mm, and the surface of the test piece was polished with #800 metal paper sandpaper, and then #2000. sanded with a metal sandpaper. In order to remove the metal powder, the test piece was immersed in acetone and subjected to ultrasonic waves (oscillation frequency 40 kHz, high frequency output 130 W) for 5 minutes. The ultrasonically treated test piece was air-dried and used for the test.
7 ml of each solvent composition was placed in a standard wide-mouthed bottle (capacity 14 ml, transparent, manufactured by AS ONE Co., Ltd.), and placed so that about half of the test piece was immersed in the solvent composition. Leave at room temperature (about 20 ° C.) for 5 days, observe the surface observation on both sides of 10 mm × 40 mm of the test piece using the naked eye or an HDМI digital stereoscopic microscope STZ-161-TLED1080М (manufactured by Shimadzu Rika Co., Ltd.), It was evaluated as follows.
◯: No rust was observed.
x: Rusting was observed.

[Test Example 12] Rust suppression test (2)
An iron test piece (SPCC (JIS, G, 3141), manufactured by Iwata Seisakusho Co., Ltd.) was cut into 5 mm × 30 mm × 0.1 mm, and the surface of the test piece was polished with #800 metal paper sandpaper, and then #2000. sanded with a metal sandpaper. In order to remove the metal powder, the test piece was immersed in acetone and subjected to ultrasonic waves (oscillation frequency 40 kHz, high frequency output 130 W) for 5 minutes. The ultrasonically treated test piece was air-dried and used for the test.
7 ml of each solvent composition was placed in a standard wide-mouthed bottle (capacity 14 ml, transparent, manufactured by AS ONE Co., Ltd.), and placed so that about half of the test piece was immersed in the solvent composition. It was left at room temperature (about 20° C.) for 30 days, and the surfaces of both sides of the 10 mm×40 mm test piece were observed with the naked eye and evaluated as follows.
Since Test Example 12 is a longer test than Test Example 11, a higher rust prevention effect is required.
◯: No rust was observed.
x: Rusting was observed.

The results are summarized in the table below.

The results of Test Example 1 showed that the solvent compositions of Examples were superior in drying property to the case where the component (B) was not contained. In addition, the solvent compositions of Examples exhibited low levels of coloration during use and/or storage, and were excellent in detergency against various oils and the like. Also, the aerosol compositions containing the solvent compositions of Examples were excellent in detergency against mineral oil. Moreover, the solvent composition having a preferable composition was superior in drying property. In particular, although the component (b2-3) had a high boiling point, the solvent composition was efficiently imparted with drying properties.
When the solvent composition further contained the component (d1), there was a tendency that the flux of Test Example 6 and the epoxy resin or urethane resin of Test Example 7 were cleaned better. Further, for example, by comparing Examples 329, 330 and 337, the content of component (d1) is 0.5 parts by weight with respect to a total of 100 parts by weight of components (A), (B) and (d1). parts or more, the washability against the epoxy resin or the flux washability was excellent.
When the solvent composition further contained the component (d3), the detergency of the Mackie pen of Test Example 5, the flux of Test Example 6, and the epoxy resin or urethane resin of Test Example 7 tended to increase. Further, for example, by comparison of Examples 385 to 392, when the component (A) and the component (B) have a specific content, the total of the component (A), the component (B) and the component (d3) is 100 parts by weight. On the other hand, when the content of the component (d3) was 10 parts by weight or more, there was a tendency that the detergency against the epoxy resin or the flux detergency was excellent.
From the results of Test Examples 11 and 12, rusting was observed on the metal pieces with the component (A) alone. On the other hand, rusting was suppressed when the solvent composition contained the component (B).

1 solvent composition, 2 vapor of solvent composition, 3 solvent composition, 4 rinse liquid, 11 boiling tank, 12 ultrasonic cleaning tank, 13 steam tank, 14 rinse tank, 21 cooling pipe, 22 gutter, 23 water separator , 24 heater, 25 ultrasonic transducer,
S object to be washed, S1 to S5 object to be washed

Claims (19)

A cleaning solvent composition comprising (A) 1-bromo-2-methylpropane and (B) a fluorinated solvent. (B) is selected from the group consisting of (b1) hydrofluorocarbons, (b2) hydrofluoroethers, (b3) hydrofluoroolefins and (b4) chlorofluoroolefins (excluding (b3) hydrofluoroolefins) 2. The cleaning solvent composition of claim 1, wherein the solvent is one or more solvents. (B) contains (b1) hydrofluorocarbons, (b1) is (b1-1) 1,1,1,3,3-pentafluorobutane, and (b1-2) 1,1,1,2,2 , 3,4,5,5,5-decafluoropentane and (b1-3) 1,1,2,2,3,3,4-heptafluorocyclopentane is one or more selected from the group consisting of A cleaning solvent composition according to claim 1 or 2. (B) contains (b1-1) 1,1,1,3,3-pentafluorobutane, and (b1-1) is contained with respect to a total of 100 parts by mass of (A) and (b1-1) 3. The cleaning solvent composition of claim 1 or 2, wherein the amount is greater than 70 parts by weight and less than 100 parts by weight. (B) contains (b2) hydrofluoroethers, (b2) is (b2-1) 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, (b2-2 ) one or more solvents selected from the group consisting of methyl nonafluorobutyl ether and methyl nonafluoroisobutyl ether; (b2-3) 1,1,1,2,2,3,4,5,5,5-deca from the group consisting of fluoro-3-methoxy-4-(trifluoromethyl)-pentane, and (b2-4) one or more solvents selected from the group consisting of ethyl nonafluorobutyl ether and ethyl nonafluoroisobutyl ether 3. A cleaning solvent composition according to claim 1 or 2 which is one or more selected solvents. (B) contains (b2-1) 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether, relative to a total of 100 parts by mass of (A) and (b2-1) 3. The cleaning solvent composition according to claim 1, wherein the content of (b2-1) is more than 14 parts by mass and less than 100 parts by mass. (B) contains (b2-2) one or more solvents selected from the group consisting of methyl nonafluorobutyl ether and methyl nonafluoroisobutyl ether, and relative to a total of 100 parts by mass of (A) and (b2-2) 3. The cleaning solvent composition according to claim 1, wherein the content of (b2-2) is more than 9 parts by mass and less than 100 parts by mass. (B) contains (b3) hydrofluoroolefins, (b3) is (b3-1) cis-1-chloro-3,3,3-trifluoropropene, (b3-2) (E) -1- one or more solvents selected from the group consisting of chloro-2,3,3-trifluoropropene and (Z)-1-chloro-2,3,3-trifluoropropene, (b3-3)(Z) -1,1,1,4,4,4-hexafluoro-2-butene, (b3-4) methoxyperfluoroheptene, (b3-5) 1,1-dichloro-3,3,3-trifluoro Propene, (b3-6) 1,2-dichloro-3,3,3-trifluoropropene, (b3-7) 1-chloro-1,3,3-trifluoropropene, (b3-8) (Z) -1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene, (b3-9)(E)-1-chloro-2,3,3,4,4,5 ,5-heptafluoro-1-pentene, (b3-10) 1,2-dichloro-3,3-difluoropropene, and (b3-11) 1,3-dichloro-3,3-difluoropropene The cleaning solvent composition according to claim 1 or 2, which is one or more selected from. (B) contains (b3-1) cis-1-chloro-3,3,3-trifluoropropene, and (b3-1) with respect to a total of 100 parts by mass of (A) and (b3-1) The cleaning solvent composition according to claim 1 or 2, wherein the content of is more than 15 parts by mass and less than 100 parts by mass. (B) is selected from the group consisting of (b3-2) (E)-1-chloro-2,3,3-trifluoropropene and (Z)-1-chloro-2,3,3-trifluoropropene Claim 1, wherein the content of (b3-2) is more than 65 parts by mass and less than 100 parts by mass with respect to a total of 100 parts by mass of (A) and (b3-2) 3. or the solvent composition for cleaning according to 2. (B) contains (b3-3)(Z)-1,1,1,4,4,4-hexafluoro-2-butene, and with respect to a total of 100 parts by mass of (A) and (B), 3. The cleaning solvent composition according to claim 1, wherein the content of (b3-3) is more than 1 part by mass and less than 100 parts by mass. (c1) epoxides, (c2) nitroalkanes and (c3) cyclic ethers (excluding (c1) epoxides). Item 12. The cleaning solvent composition according to any one of Items 1 to 11. Furthermore, (d1) alcohols (excluding (d3) glycol ethers and (d4) perfume ingredients), (d2) esters, (d3) glycol ethers, (d4) perfume ingredients and (d5) hydrocarbons ( (d4) excluding perfume ingredients). The cleaning solvent composition according to any one of claims 1 to 13, wherein no flash point is detected in closed-tag flash point measurement. The cleaning solvent according to any one of claims 1 to 14, which is a cleaning agent for cleaning an object to be cleaned on which at least one selected from the group consisting of oily dirt, oil, flux and resin is adhered. Composition. The cleaning solvent composition according to any one of claims 1 to 15, which is a cleaning agent for use as a cleaning agent for hand wiping. Step (1A): a step of immersing an object to be cleaned in the cleaning solvent composition according to any one of claims 1 to 15; and Step (1B): a step of any one of claims 1 to 15. generating steam containing component (A) from the cleaning solvent composition of (1), and contacting the object to be cleaned with the generated steam containing component (A). The cleaning solvent composition according to any one of claims 1 to 15, which is a cleaning agent. A cleaning aerosol composition comprising the cleaning solvent composition according to any one of claims 1 to 15 and a propellant gas. A cleaning method for cleaning by injecting the cleaning aerosol composition according to claim 18.

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