Surfactant composition

Abstract

The present invention provides a surfactant composition comprising (a) a branched alkyl sulfosuccinate having a branched alkyl group having 9 or 10 carbon atoms and (b) a surfactant (excluding (a)).

Description

Technical Field

[0001] The invention relates to a surfactant composition, a foam control agent and a foam control method. Background Art

[0002] Compositions containing surfactants are used in detergents for clothing, skin, house, and tableware. In addition to the cleaning power of the target stains, these compositions are required to control foaming properties such as foaming properties and foam persistence according to the use and purpose. Such foaming control is usually carried out by, for example, using a combination of foaming surfactants or a foaming agent.

[0003] Japanese Patent Application Laid-Open No. 2013-100462 discloses a dishwashing detergent composition for hand washing containing di(2-ethylhexyl) sulfosuccinate, which produces abundant and persistent foam during washing, and instantly disappears during rinsing, allowing rinsing to be completed with a small amount of water.

[0004] Japanese Patent Application Publication No. 2013-532736 states that a surfactant having a branched structure is excellent in foaming properties and foam stability.

[0005] Japanese Patent Application Laid-Open No. 2017-214554 discloses a tableware detergent composition containing a predetermined alkyl sulfosuccinate having a multi-branched structure.

[0006] Japanese Patent Application Publication No. 2018-529989 discloses a method of using a composition containing an ammonium salt of a specific compound such as a sulfosuccinic acid diester to clean or rinse a product comprising a substrate and a patterned material layer supported thereby having a line-space structure with a line width of 50 nm or less.

[0007] U.S. Patent Application Publication No. 2017 / 0214999 discloses a composition comprising (a) one or more salts of a monoalkyl ester and / or a dialkyl ester of a sulfonated dicarboxylic acid and (b) an organic solvent, wherein the dicarboxylic acid contains 4 to 8 carbon atoms and the alkyl group is derived from 2-propylheptanol.

[0008] Japanese Patent Application Publication No. 9-500884 discloses that a liquid composition containing a sulfosuccinic acid diester having a predetermined structure is used as a wetting agent or an emulsifier. Summary of the invention

[0009] Generally speaking, the foam produced during cleaning is preferred in most cases because it can give the operator a real feeling of cleaning. In addition, by the adhesion of foam, there is also the advantage of being able to clearly clean the position, and sometimes the excellent stability of the foam is also desired.

[0010] The present invention provides a surfactant composition having excellent foamability and foam stability, and a foam control agent and a foam control method capable of imparting excellent foamability and foam stability to a composition containing a surfactant.

[0011] The present invention relates to a surfactant composition comprising (a) a branched alkyl sulfosuccinate in which the branched alkyl group has 9 or 10 carbon atoms [hereinafter referred to as component (a)] and (b) a surfactant [excluding component (a)] [hereinafter referred to as component (b)].

[0012] The present invention also relates to a foam control agent, wherein the foam control agent is composed of (a) a branched alkyl sulfosuccinate in which the branched alkyl group has 9 or 10 carbon atoms [hereinafter referred to as component (a)], and the foam control agent is used in a composition containing a surfactant other than component (a).

[0013] The present invention also relates to a method for controlling foaming of a surfactant composition, wherein (a) a branched alkyl sulfosuccinate having a branched alkyl group having 9 or 10 carbon atoms [hereinafter referred to as component (a)] is added to a composition containing (b) a surfactant other than component (a) [hereinafter referred to as component (b)] to control foaming of the composition.

[0014] According to the present invention, there can be provided a surfactant composition having excellent foamability and foam stability, and a foam control agent and a foam control method capable of imparting excellent foamability and foam stability to a composition containing a surfactant. DETAILED DESCRIPTION

[0015] Generally speaking, most surfactants have foaming properties, and this property is used in detergents and the like. When a gas is mixed in a composition containing a surfactant and water, a layer of a structure in which the hydrophobic portion (alkyl group, etc.) of the surfactant is oriented toward the gas side and the hydrophilic portion is oriented toward the liquid side is formed at the gas-liquid interface, and water enters between the layers to form foam. On the other hand, the water entering the layer of the surfactant is discharged over time, so that the foam bursts. From this viewpoint, it is believed that the higher the stacking property of the hydrophobic group, the better the foaming property, and the more stable the foam is formed.

[0016] In the present invention, by combining (a) component and (b) component, foamability and foam stability are improved. The reason is not clear, but it is believed that the compound containing an alkyl group having a specific branched structure of (a) component is present in the hydrophobic membrane of the surfactant of (b) component in the foam, and before the hydrophobic membrane with relatively high crystallinity is destroyed and the foam breaks, the compound of (a) component with relatively low crystallinity repairs the hydrophobic membrane, thereby inhibiting the foam from breaking. (a) component is considered to be a component that reduces the stacking property of the hydrophobic membrane formed by (b) component due to its structure, and therefore, the effect of the present invention is unexpected for those skilled in the art.

[0017] <Surfactant composition>

[0018] The component (a) is a branched alkyl sulfosuccinate, which is a branched alkyl sulfosuccinate having a branched alkyl group, wherein the branched alkyl group has 9 or 10 carbon atoms.

[0019] Examples of the component (a) include compounds in which the ester is a monoester and compounds in which the ester is a diester, and preferably a branched alkyl sulfosuccinate diester in which the branched alkyl group has 9 or 10 carbon atoms.

[0020] From the viewpoint of achieving both foamability and foam stability, the branched alkyl group of the component (a) preferably has a main chain having 6 or 7 carbon atoms and one or more side chains with a total of 3 carbon atoms in the side chains.

[0021] The branched alkyl group of the component (a) is preferably a branched alkyl group selected from the group consisting of a 2-propylheptyl group and a 3,5,5-trimethylhexyl group.

[0022] Component (a) may also be a salt. That is, component (a) may be a compound selected from branched alkyl sulfosuccinates having a branched alkyl group with 9 or 10 carbon atoms and salts thereof. Examples of the salt include inorganic salts such as sodium salts, potassium salts, ammonium salts, and magnesium salts, and organic salts such as monoethanolamine salts, diethanolamine salts, triethanolamine salts, and morpholine salts. The salt of component (a) is preferably an inorganic salt selected from alkali metal salts such as sodium salts and potassium salts and alkaline earth metal salts such as magnesium salts, and more preferably an alkali metal salt.

[0023] As the component (a), there can be mentioned a sulfosuccinic acid branched ester represented by the following general formula (a1).

[0024]

[0025] 〔In the formula, R 1a , R 2a Each of them is independently a branched alkyl group having 9 or 10 carbon atoms. 1 , A 2Each of them is independently an alkylene group having 2 to 4 carbon atoms, and x and y are average added molar numbers and are independently 0 to 6. 1 A hydrogen atom or a cation.

[0026] R 1a , R 2a The number of carbon atoms may be the same or different.

[0027] In the present invention, the chain-type branched hydrocarbon group includes a hydrocarbon residue obtained by removing a hydroxyl group from a secondary alcohol.

[0028] In the present invention, in R 1a , R 2a In the chain-type branched hydrocarbon group (branched alkyl group), the hydrocarbon chain with the largest number of carbon atoms, counting from the carbon atom bonded to the oxygen atom, is regarded as the main chain, and the hydrocarbon chains branched and bonded from the main chain are regarded as side chains.

[0029] When two or more main chains are considered, that is, when there are two or more hydrocarbon chains with the largest number of carbon atoms (hereinafter also referred to as the longest hydrocarbon chain), the main chain is determined in the following order.

[0030] 1. The chain with the larger number of carbon atoms in the side chain branching from the longest hydrocarbon chain is used as the main chain.

[0031] 2. Next, when the number of carbon atoms in the side chains branching from the longest hydrocarbon chain is the same, the chain with the larger number of side chains branching from the longest hydrocarbon chain is regarded as the main chain.

[0032] 3. Next, when the number of side chains branching from the longest hydrocarbon chain is the same, the chain having the side chain on the carbon atom closer to the oxygen atom, counting from the carbon atom bonded to the oxygen atom, is regarded as the main chain.

[0033] 4. Next, when the positions of the carbon atoms having side chains closest to the oxygen atom are the same, the chain with the larger number of carbon atoms in the side chain closest to the oxygen atom is used as the main chain.

[0034] Furthermore, when two or more longest hydrocarbon chains have the same symmetrical structure, any of the chains may be used as the main chain.

[0035] In R 1a , R 2a The total number of carbon atoms constituting the side chains in the respective branched alkyl groups may be the same or different, but is preferably 3 from the viewpoint of foam stability.

[0036] In the present invention, the total number of carbon atoms constituting the side chains is the total number of carbon atoms of all side chains other than the main chain in one branched alkyl group. When there are a plurality of side chains, it is the total number of carbon atoms of all these side chains.

[0037] R1a , R 2a The number of side chains may be the same or different, and is 1 or more and preferably 3 or less, more preferably 2 or less from the viewpoint of foamability and foam stability.

[0038] In the present invention, the number of side chains refers to the number of side chains branching from the main chain, and the number of side chains does not change even if the side chain has a side chain further branching from the side chain. However, from the viewpoint of foaming properties, the side chain may have a side chain further branching from the side chain.

[0039] R 1a , R 2a The number of branched carbon atoms may be the same or different, and is 1 or more and preferably 3 or less, and more preferably 2 or less from the viewpoint of foamability and foam stability.

[0040] In the present invention, the number of branch carbon atoms is the total number of tertiary carbon atoms and quaternary carbon atoms in the chain-type branched hydrocarbon group.

[0041] About R 1a , R 2a A preferred embodiment, R 1a , R 2a The total number of carbon atoms of the chain branched hydrocarbon groups is independently 9 or 10, the number of carbon atoms of the main chain is independently 6 or 7, the number of carbon atoms constituting the side chains is independently 1 to 3, and the number of side chains is independently 1.

[0042] R 1a , R 2a The specific branched alkyl groups may be the same or different, and are preferably branched alkyl groups selected from 2-propylheptyl and 3,5,5-trimethylhexyl.

[0043] In the general formula (a1), A 1 , A 2 Each independently is an alkylene group having 2 or more carbon atoms and 4 or less carbon atoms, preferably 3 or less carbon atoms.

[0044] In the general formula (a1), x and y are average addition mole numbers, and are each independently 0 or more and 6 or less, preferably 4 or less, more preferably 2 or less, and further preferably 0, from the viewpoint of foamability and foam stability.

[0045] Furthermore, from the viewpoint of foamability and foam stability, x+y is preferably 0 or more and preferably 12 or less, more preferably 6 or less, further preferably 3 or less, and further preferably 0.

[0046] In the general formula (a1), M 1M is a hydrogen atom or a cation. Examples of cations include inorganic cations such as sodium ion, ammonium ion, potassium ion, and magnesium ion, and organic cations such as monoethanolammonium ion, diethanolammonium ion, triethanolammonium ion, and morpholinium ion. 1 Preferred are inorganic cations selected from alkali metal ions such as sodium ion and potassium ion and alkaline earth metal ions such as magnesium ion, and more preferred are alkali metal ions.

[0047] In the general formula (a1), R 1a , R 2a The method for preparing the same compound is not particularly limited, and can be prepared, for example, by referring to the method described in U.S. Patent No. 2,028,091. 1a , R 2a The production method of various asymmetric compounds can be produced by referring to, for example, Japanese Patent Application Laid-Open No. 58-24555. As the raw material of the component (a), a compound obtained by adding an alkylene oxide to an alcohol having a predetermined number of carbon atoms can also be used.

[0048] Examples of suitable alcohols for producing the component (a) of the present invention include:

[0049] (1) primary alcohols represented by 3,5,5-trimethylhexane-1-ol, 2-propylheptane-1-ol, etc.,

[0050] (2) Secondary alcohols represented by 5-nonanol, 2,6-dimethyl-4-heptanol, and the like.

[0051] In the present invention, by using the component (a), a surfactant composition having excellent foamability and foam stability can be provided.

[0052] From the viewpoint of foamability and foam stability, the surfactant composition of the present invention contains component (a) in an amount of preferably 0.05% by mass or more, more preferably 0.1% by mass or more, further preferably 0.25% by mass or more, and preferably 20% by mass or less, more preferably 15% by mass or less, further preferably 10% by mass or less, and further preferably 5% by mass or less.

[0053] In the present invention, the description of the mass (mass % or mass ratio) of the component (a) is based on the mass of the compound converted into a sodium salt. For example, M in the general formula (a1) is 1 The mass is assumed to be sodium.

[0054] The component (b) is a surfactant [but excluding the component (a)].

[0055] As component (b), one or more surfactants selected from anionic surfactants, nonionic surfactants, cationic surfactants and amphoteric surfactants other than component (a) can be cited. As component (b), one or more surfactants selected from nonionic surfactants and anionic surfactants are preferred. Component (b) is preferably a surfactant with rich foaming properties.

[0056] Examples of anionic surfactants other than component (a) include alkyl sulfate ester salts, polyoxyalkylene alkyl ether sulfate ester salts, alkane sulfonates, alkylbenzene sulfonates, higher fatty acids or salts thereof, polyoxyethylene alkyl ether carboxylic acids or salts thereof, N-acylamino acids or salts thereof, alkyl phosphate ester salts, polyoxyethylene alkyl ether phosphates, etc. The alkyl group of the anionic surfactant has, for example, 8 to 20 carbon atoms. The average number of moles of the oxyalkylene group, for example, the oxyethylene group, of the anionic surfactant is, for example, 0 to 4, preferably more than 0 and 4 or less. The salt of the anionic surfactant is, for example, an alkali metal salt such as a sodium salt or a potassium salt.

[0057] As the anionic surfactant other than the component (a), a compound represented by the following general formula (b1) is preferred.

[0058] R 1b -(OA 1b ) p -OSO3M (b1)

[0059] 〔In the formula, R 1b A is a hydrocarbon group having 10 to 16 carbon atoms, preferably an alkyl group; 1b It is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group; p is an average added mole number, and is 0 to 5, preferably 0 to 3, and more preferably 0 to 2.5.

[0060] M is a hydrogen atom or a cation. ]

[0061] In the general formula (b1), as the cation of M, inorganic cations such as sodium ion, ammonium ion, potassium ion, magnesium ion, and organic cations such as monoethanolammonium ion, diethanolammonium ion, triethanolammonium ion, and morpholinium ion can be listed. M is preferably an inorganic cation selected from alkali metal ions such as sodium ion, potassium ion, and alkaline earth metal ions such as magnesium ion, and more preferably an alkali metal ion.

[0062] Examples of the nonionic surfactant include alkyl monoglyceryl ethers, polyoxyalkylene monoalkyl or alkenyl ethers, alkyl (poly) glycosides (glycoside-type nonionic surfactants), sorbitan-based nonionic surfactants, aliphatic alkanolamides, fatty acid monoglycerides, sucrose fatty acid esters, amidates of alkanolamines such as monoethanolamine, diethanolamine, and methyl monoethanolamine with fatty acids such as lauric acid and myristic acid. The alkyl or alkenyl group of the nonionic surfactant has, for example, 6 to 18 carbon atoms. The average number of moles of oxyalkylene groups, such as oxyethylene groups, of the nonionic surfactant is, for example, 3 to 25.

[0063] The nonionic surfactant is preferably one or more nonionic surfactants selected from the group consisting of polyoxyalkylene monoalkyl or alkenyl ethers and alkyl (poly)glycosides (glycoside-type nonionic surfactants).

[0064] As the polyoxyalkylene monoalkyl or alkenyl ether, a compound represented by the following general formula (b2) is preferred.

[0065] R 2b -O-(A 2b O) n -H (b2)

[0066] 〔In the formula, R 2b A is a hydrocarbon group having 10 to 18 carbon atoms, preferably 10 to 14 carbon atoms, preferably an alkyl group; 2b is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group; n is an average number of added moles, and is 3 to 25, preferably 3 to 20, and more preferably 3 to 15.]

[0067] In addition, as the alkyl glycoside, a compound represented by the following general formula (b3) is preferred.

[0068] R 3b -(OR 4b ) m G z (b3)

[0069] 〔In the formula, R 3b It is a straight-chain alkyl group having 8 or more, preferably 10 or more, and 16 or less, preferably 14 or less carbon atoms. 4b is an alkylene group having 2 to 4 carbon atoms, preferably ethylene or propylene, more preferably ethylene. G is a residue derived from a reducing sugar. m is a number of 0 to 6 on average. z is a number of 1 to 10 on average, preferably 5 to 10, more preferably 2 to 2.]

[0070] Surfactants such as those represented by the above-mentioned general formula (b1), general formula (b2) and general formula (b3) are preferred in the present invention as surfactants having a high foaming property.

[0071] As amphoteric surfactants, N-alkanoylaminopropyl-N,N-dimethylamine oxide, N-alkyl-N,N-dimethylamine oxide, N-alkanoylaminopropyl-N,N-dimethyl-N-carboxymethylammonium betaine, N-alkyl-N,N-dimethyl-N-carboxymethylammonium betaine, N-alkyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, N-alkyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine, N-alkanoylaminopropyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, N-alkanoylaminopropyl-N,N-dimethyl-N-sulfopropylammonium sulfobetaine, N-alkanoylaminopropyl-N,N-dimethyl-N-(2-hydroxysulfopropyl)ammonium sulfobetaine can be cited. Among these, alkanoyl is, for example, lauroyl or myristoyl. In addition, among these, alkyl is, for example, lauryl or myristyl.

[0072] The component (b) is preferably one or more surfactants selected from the group consisting of polyoxyalkylene alkyl ether sulfates, polyoxyalkylene monoalkyl or alkenyl ethers, and alkyl (poly)glycosides (glycoside-type nonionic surfactants).

[0073] Regarding the surfactant composition of the present invention, the mass ratio of the content of the component (a) to the content of the component (b) is preferably 0.05 or more, more preferably 0.1 or more, further preferably 0.2 or more, further preferably 0.5 or more, and preferably 5 or less, more preferably 1.5 or less, more preferably 1.25 or less, and further preferably 1.0 or less. In the present invention, the mass of the component (a) is converted to the mass of the Na salt. In addition, the mass of the component (b) is converted to the mass of the Na salt when it is an anionic surfactant. The mass of the component (b) is converted to the mass of the hydrochloride when it is a cationic surfactant.

[0074] From the viewpoint of foaming properties, the surfactant composition of the present invention contains component (b) in an amount of preferably 0.1% by mass or more, more preferably 0.15% by mass or more, further preferably 0.25% by mass or more, and preferably 35% by mass or less, more preferably 20% by mass or less, further preferably 10% by mass or less, and further preferably 6% by mass or less.

[0075] In order to improve storage stability and adjust viscosity, the surfactant composition of the present invention may also contain a solvent as component (c). Regarding component (c), from the viewpoint of improving storage stability, a water-soluble organic solvent having preferably 2 or more carbon atoms, more preferably 3 or more carbon atoms, and preferably 10 or less carbon atoms, more preferably 8 or less carbon atoms is suitable.

[0076] As component (c), it is preferably one or more water-soluble organic solvents selected from (c1) monohydric or polyhydric alcohols and (c2) glycol ethers, and the above-mentioned (c1) monohydric or polyhydric alcohols are preferably monohydric or polyhydric alcohols selected from ethanol, isopropanol, ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerol, isopentyl glycol and benzyl alcohol, and the above-mentioned (c2) glycol ethers are preferably glycol ethers selected from propylene glycol monomethyl ether, propylene glycol monoethyl ether, 3-methyl-3-methoxybutanol, phenoxyethanol, styrene glycol, phenoxyisopropanol, butyl diethylene glycol (diethylene glycol monobutyl ether) and dibutylene glycol. The monohydric or polyhydric alcohol is preferably one or more selected from benzyl alcohol, ethanol and propylene glycol. The glycol ether is preferably one or more selected from butyl diethylene glycol and phenoxyethanol, and more preferably butyl diethylene glycol. The (c) component is preferably one or more water-soluble organic solvents selected from monohydric alcohols and glycol ethers. The component (c) is more preferably one or more water-soluble organic solvents selected from the group consisting of benzyl alcohol, ethanol, propylene glycol, butyl diethylene glycol and phenoxyethanol. The surfactant composition of the present invention preferably contains butyl diethylene glycol as the component (c).

[0077] Here, the water-soluble organic solvent refers to a solvent having an octanol / water partition coefficient (LogPow) of 3.5 or less.

[0078] From the viewpoint of storage stability and viscosity adjustment, the surfactant composition of the present invention contains the component (c) in an amount of preferably 1% by mass or more, more preferably 2% by mass or more, further preferably 3% by mass or more, and preferably 15% by mass or less, more preferably 12% by mass or less, further preferably 8% by mass or less.

[0079] The surfactant composition of the present invention preferably contains water, and is preferably a liquid composition containing water.

[0080] The surfactant composition of the present invention may contain, for example, a solubilizing agent and other components as optional components.

[0081] The pH of the surfactant composition of the present invention at 25°C may be, for example, 2 or more, further 4 or more, further 5 or more, and 10 or less, further 9 or less, further 8 or less, further 7 or less. The pH may be appropriately selected in consideration of the use of the surfactant composition, such as irritation to the skin of the hands, etc. The pH may be measured by a glass electrode method.

[0082] The surfactant composition of the present invention also varies depending on the application, etc. For example, the viscosity at 25°C is preferably 3 mPa·s or more, more preferably 10 mPa·s or more, and preferably 5,000 mPa·s or less, more preferably 2500 mPa·s or less. The viscosity can be adjusted using a solvent or a co-solvent, etc. The viscosity can be measured using a Brookfield viscometer.

[0083] The surfactant composition of the present invention has excellent foaming properties and foam stability, and therefore, can be used in various applications using this property. For example, the surfactant composition of the present invention can be suitably used as a surfactant for a cleaning agent. As cleaning agents, cleaning agents for clothing, cleaning agents for skin, cleaning agents for houses, cleaning agents for tableware, etc. can be cited.

[0084] According to the present invention, a method for producing a surfactant composition in which components (a) and (b) are mixed can be provided. The manufacturing method can appropriately apply the matters described in the surfactant composition of the present invention. The manufacturing method may be a method for producing a surfactant composition of the present invention. The manufacturing method is a method for producing a surfactant composition in which components (a) and (b) are mixed, wherein the component (b) is a surfactant selected from one or more of a nonionic surfactant and an anionic surfactant other than the component (a), and preferably the components (a) and (b) are mixed in a mass ratio of the mixed amount of the component (a) to the mixed amount of the component (b) in terms of the component (a) / component (b) of 0.05 or more, further 0.1 or more, further 0.2 or more, further 0.5 or more, and further 5 or less, further 1.5 or less, further 1.25 or less, and further 1.0 or less. In the manufacturing method, the component (c) may be optionally mixed.

[0085] <Foaming control agent and foaming control method>

[0086] The present invention relates to a foam control agent, which is composed of (a) a branched alkyl sulfosuccinate in which the branched alkyl group has 9 or 10 carbon atoms (hereinafter referred to as component (a)), and is used for a composition containing a surfactant other than component (a).

[0087] Specific examples and preferred embodiments of the component (a) are the same as those of the surfactant composition of the present invention.

[0088] The matters described with respect to the surfactant composition of the present invention can be applied to the foam controlling agent of the present invention.

[0089] The surfactant composition of the present invention may contain the component (a) as a foam control agent.

[0090] The present inventors have found that component (a) can control the foaming property of a composition containing a surfactant other than component (a) (hereinafter referred to as component (b)). Here, the control of foaming property typically means, for example, improving the foaming property and further stabilizing the foam.

[0091] Generally speaking, most surfactants exhibit foaming properties, and most of them exhibit foaming properties when used in combination with water. Component (a) can control the foaming properties of the surfactant, for example, it can control the foaming properties when the surfactant is used in combination with water. Component (a) can be used to improve the foaming properties and foam stability of a composition containing a surfactant as component (b). Component (a) can be a modifier for a composition exhibiting foaming properties, for example, a foaming composition containing component (b). That is, component (a) can be a modifier for a foaming composition. In addition, the specific examples and preferred embodiments of component (b) are also the same as those of the surfactant composition of the present invention.

[0092] The foam control agent of the present invention or the above-mentioned modifier is used in an amount of (a) component / (b) component as the mass ratio of (a) component to (b) component, preferably 0.01 or more, more preferably 0.05 or more, further preferably 0.1 or more, and preferably 1.5 or less, more preferably 1 or less, further preferably 0.5 or less.

[0093] According to the present invention, a method for controlling the foaming property of a composition containing component (b) by component (a) can be provided. That is, the present invention provides a method for controlling the foaming property of a surfactant composition, wherein component (a) is added to a composition containing component (b) to control the foaming property of the composition. As the control method of the present invention, for example, the following method can be cited: relative to the composition containing component (b), the mass ratio of component (a) to component (b) is preferably 0.01 or more, more preferably 0.05 or more, further preferably 0.1 or more, and preferably 1.5 or less, more preferably 1 or less, and further preferably 0.5 or less to add component (a), and the foaming property of the above composition is controlled. Component (b) is preferably one or more surfactants selected from nonionic surfactants and anionic surfactants other than component (a). The control of foaming property can include at least one of the improvement of foaming property and the stabilization of foam. The present invention also provides a method for using component (a) to control the foaming property of a composition containing component (b). In these methods, the specific examples and preferred embodiments of component (a) are also the same as those of the surfactant composition of the present invention. In addition, the matters described in the surfactant composition of the present invention can be applied to these methods. The above composition may optionally contain component (c).

[0094] <Embodiments of the present invention>

[0095] Embodiments of the present invention are exemplified below. These embodiments can appropriately apply the matters described in the surfactant composition, foam control agent, and method for controlling foaming properties of the surfactant composition of the present invention.

[0096] <1> A surfactant composition comprising (a) a branched alkyl sulfosuccinate having a branched alkyl group having 9 or 10 carbon atoms [hereinafter referred to as component (a)] and (b) a surfactant [excluding component (a)] [hereinafter referred to as component (b)].

[0097] <2> The surfactant composition according to <1>, wherein the branched alkyl group of the component (a) is a branched alkyl group having a main chain of 6 or 7 carbon atoms and one or more side chains, wherein the total number of carbon atoms in the side chains is 3.

[0098] <3> The surfactant composition according to <1> or <2>, wherein the branched alkyl group of the component (a) is a branched alkyl group selected from the group consisting of 2-propylheptyl and 3,5,5-trimethylhexyl.

[0099] <4> The surfactant composition according to any one of <1> to <3>, wherein the component (a) is a sulfosuccinic acid branched ester represented by the following general formula (a1).

[0100]

[0101] 〔In the formula, R 1a , R 2a Each of them is independently a branched alkyl group having 9 or 10 carbon atoms. 1 , A 2 Each of them is independently an alkylene group having 2 to 4 carbon atoms, and x and y are average added molar numbers and are independently 0 to 6. 1 A hydrogen atom or a cation.

[0102] <5> The surfactant composition according to <4>, wherein in the general formula (a1), R 1a , R 2a The number of side chains is the same or different.

[0103] <6> The surfactant composition according to <4> or <5>, wherein in the general formula (a1), R 1a , R 2a The number of side chains is respectively 1 or more and preferably 3 or less, and more preferably 2 or less.

[0104] <7> The surfactant composition according to any one of <4> to <6>, wherein in the general formula (a1), R 1a , R 2a The number of branching carbons may be the same or different.

[0105] <8> The surfactant composition according to any one of <4> to <7>, wherein in the general formula (a1), R 1a , R 2aThe number of branched carbon atoms is 1 or more, and preferably 3 or less, and more preferably 2 or less.

[0106] <9> The surfactant composition according to any one of <4> to <8>, wherein in the general formula (a1), R 1a , R 2a The total number of carbon atoms of the branched alkyl groups is independently 9 or 10, the number of carbon atoms in the main chain is independently 6 or 7, the number of carbon atoms constituting the side chains is independently 1 or more and 3 or less, and the number of side chains is independently 1.

[0107] <10> The surfactant composition according to any one of <4> to <9>, wherein in the general formula (a1), R 1a , R 2a The same or different groups are branched alkyl groups selected from 2-propylheptyl and 3,5,5-trimethylhexyl.

[0108] <11> The surfactant composition according to any one of <4> to <10>, wherein in the general formula (a1), x and y are each independently 0.

[0109] <12> The surfactant composition according to any one of <4> to <11>, wherein in the general formula (a1), M 1 It is an alkali metal ion.

[0110] <13> The surfactant composition according to any one of <1> to <12>, wherein the component (a) is a branched alkyl sulfosuccinate diester having a branched alkyl group having 9 or 10 carbon atoms.

[0111] <14> The surfactant composition according to any one of <1> to <13>, wherein the component (a) is an alkali metal salt.

[0112] <15> A surfactant composition as described in any one of <1> to <14>, wherein the content of component (a) is preferably 0.05 mass% or more, more preferably 0.1 mass% or more, further preferably 0.25 mass% or more, and is preferably 20 mass% or less, more preferably 15 mass% or less, further preferably 10 mass% or less, and further preferably 5 mass% or less.

[0113] <16> The surfactant composition according to any one of <1> to <15>, wherein the component (b) is one or more surfactants selected from nonionic surfactants and anionic surfactants other than the component (a).

[0114] <17> The surfactant composition according to <16>, wherein the anionic surfactant other than the component (a) is a compound represented by the following general formula (b1).

[0115] R 1b -(OA 1b ) p -OSO3M (b1)

[0116] 〔In the formula, R 1b A is a hydrocarbon group having 10 to 16 carbon atoms, preferably an alkyl group; 1b It is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group; p is an average added mole number, and is 0 to 5, preferably 0 to 3, and more preferably 0 to 2.5.

[0117] M is a hydrogen atom or a cation. ]

[0118] <18> The surfactant composition according to <17>, wherein in the general formula (b1), M is an alkali metal ion.

[0119] <19> The surfactant composition according to any one of <16> to <18>, wherein the nonionic surfactant is one or more nonionic surfactants selected from polyoxyalkylene monoalkyl or alkenyl ethers and alkyl (poly)glycosides (glycoside-type nonionic surfactants).

[0120] <20> The surfactant composition according to <19>, wherein the polyoxyalkylene monoalkyl or alkenyl ether is a compound represented by the following general formula (b2).

[0121] R 2b -O-(A 2b O) n -H (b2)

[0122] 〔In the formula, R 2b A is a hydrocarbon group having 10 to 18 carbon atoms, preferably 10 to 14 carbon atoms, preferably an alkyl group; 2b is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group; n is an average number of added moles, and is 3 to 25, preferably 3 to 20, and more preferably 3 to 15.]

[0123] <21> The surfactant composition according to <19> or <20>, wherein the alkyl glycoside is a compound represented by the following general formula (b3).

[0124] R 3b -(OR 4b ) m G z (b3)

[0125] 〔In the formula, R 3bIt is a straight-chain alkyl group having 8 or more, preferably 10 or more, and 16 or less, preferably 14 or less carbon atoms. 4b is an alkylene group having 2 to 4 carbon atoms, preferably ethylene or propylene, more preferably ethylene. G is a residue derived from a reducing sugar. m is a number of 0 to 6 on average. z is a number of 1 to 10 on average, preferably 5 to 10, more preferably 2 to 2.]

[0126] <22> A surfactant composition as described in any one of <1> to <21>, wherein the mass ratio of the content of component (a) to the content of component (b), component (a) / component (b), is preferably not less than 0.05, more preferably not less than 0.1, further preferably not less than 0.2, further preferably not less than 0.5, and is preferably not more than 5, more preferably not more than 1.5, more preferably not more than 1.25, further preferably not more than 1.0.

[0127] <23> A surfactant composition as described in any one of <1> to <22>, wherein, from the viewpoint of foaming property, the content of component (b) is preferably 0.1% by mass or more, more preferably 0.15% by mass or more, further preferably 0.25% by mass or more, and is preferably 35% by mass or less, more preferably 20% by mass or less, further preferably 10% by mass or less, and further preferably 6% by mass or less.

[0128] <24> The surfactant composition according to any one of <1> to <23>, further comprising (c) a solvent [hereinafter referred to as component (c)].

[0129] <25> The surfactant composition according to <24>, wherein the component (c) is a water-soluble organic solvent having preferably 2 or more carbon atoms, more preferably 3 or more carbon atoms, and preferably 10 or less carbon atoms, more preferably 8 or less carbon atoms.

[0130] <26> The surfactant composition according to <24> or <25>, wherein the component (c) is one or more water-soluble organic solvents selected from (c1) monohydric or polyhydric alcohols and (c2) glycol ethers.

[0131] <27> The surfactant composition according to any one of <24> to <26>, wherein the component (c) is one or more water-soluble organic solvents selected from the group consisting of benzyl alcohol, ethanol, propylene glycol, butyl diethylene glycol and phenoxyethanol.

[0132] <28> The surfactant composition according to any one of <24> to <27>, comprising butyl diethylene glycol as the component (c).

[0133] <29> A surfactant composition as described in any one of <24> to <28>, wherein the content of component (c) is preferably 1% by mass or more, more preferably 2% by mass or more, further preferably 3% by mass or more, and is preferably 15% by mass or less, more preferably 12% by mass or less, further preferably 8% by mass or less.

[0134] <30> The surfactant composition according to any one of <1> to <29>, which contains water, and is a liquid composition containing water.

[0135] <31> A method for producing a surfactant composition, comprising mixing component (a) and component (b).

[0136] <32> A method for producing a surfactant composition as described in <31>, wherein component (b) is one or more surfactants selected from nonionic surfactants and anionic surfactants other than component (a), and components (a) and (b) are mixed in an amount such that the mass ratio of the mixing amount of component (a) to the mixing amount of component (b) (component (a) / component (b)) is 0.05 or more, further 0.1 or more, further 0.2 or more, further 0.5 or more, and further 5 or less, further 1.5 or less, further 1.25 or less, and further 1.0 or less.

[0137] <33> The method for producing a surfactant composition according to <31> or <32>, wherein the method is the method for producing a surfactant composition according to any one of <1> to <30>.

[0138] <34> A foam control agent, wherein the foam control agent is composed of (a) a branched alkyl sulfosuccinate having a branched alkyl group having 9 or 10 carbon atoms [hereinafter referred to as component (a)], and the foam control agent is used in a composition containing (b) a surfactant other than component (a) [hereinafter referred to as component (b)].

[0139] <35> The foam controlling agent as described in <34>, wherein the component (a) / component (b) is used in an amount where the mass ratio of the component (a) to the component (b) is preferably 0.01 or more, more preferably 0.05 or more, further preferably 0.1 or more, and is preferably 1.5 or less, more preferably 1 or less, further preferably 0.5 or less.

[0140] <36> A method for controlling the foaming property of a surfactant composition, wherein (a) a branched alkyl sulfosuccinate having a branched alkyl group having 9 or 10 carbon atoms [hereinafter referred to as component (a)] is added to a composition containing (b) a surfactant other than component (a) [hereinafter referred to as component (b)] to control the foaming property of the composition.

[0141] <37> The method for controlling foaming properties of a surfactant composition according to <36>, wherein the component (b) is one or more surfactants selected from nonionic surfactants and anionic surfactants other than the component (a).

[0142] <38> A method for controlling the foaming properties of a surfactant composition as described in <36> or <37>, wherein component (a) is added so that the mass ratio of the amount of component (a) added to the content of component (b) in the composition, component (a) / component (b), is greater than 0.05 and less than 5.

[0143] <39> The method for controlling the foaming property of a surfactant composition according to any one of <36> to <38>, wherein the control of the foaming property includes at least one of improving the foaming property and stabilizing the foam.

[0144] Example

[0145] The surfactant compositions of Tables 1 to 3 were filled into the pump foaming container as shown in FIG. 1 of Japanese Patent Application Laid-Open No. 2008-260852. Here, a net with a mesh size of 200 / inch was installed in the foam ejection mechanism. Then, 3 g of foam was produced in a 500 ml graduated cylinder by continuously pressing the pump head on the upper part of the container 3 times. The pressing speed was 1 second per pressing.

[0146] Next, 100 mL of ion exchange water is added to the foam from a height of 30 cm in about 5 seconds through an ion exchange water introduction component (self-made spray pot) provided on the upper part of the measuring cylinder, and the amount of foam 30 seconds after the addition of water is measured as the foamability (initial foam amount). In this evaluation, the foamability is preferably 60 mL or more. After that, the time point of adding the initial ion exchange water is regarded as the start of the test, and from the start of the test, the addition of 100 mL of ion exchange water is further repeated 3 times every 1 minute (the total amount of ion exchange water added is 400 mL). After the addition of a total of 400 mL of ion exchange water is completed, the amount of foam 30 seconds later is measured, and the value obtained by the following formula is regarded as the foam stability. In this evaluation, the foam stability is preferably 60% or more.

[0147] Foam stability (%) = (foam volume after adding 400 mL of ion exchange water / initial foam volume) × 100

[0148]

[0149] *1 Example 1-7 uses component (a') as component (b) to represent component (a) / (b).

[0150] [Table 2]

[0151]

[0152] [Table 3]

[0153]

[0154] The components in the table are as follows: In the table, component (a') is also component (b), but is used for comparison with component (a), and therefore, is indicated as component (a') for convenience.

[0155] ·Alkyl glycoside: AG-124, manufactured by Kao Corporation

[0156] · Polyoxyethylene alkyl ether: Polyoxyethylene alkyl ether, alkyl carbon number 13, average ethylene oxide addition mole number 7, SOFTANOL 70H, manufactured by Nippon Shokubai Co., Ltd.

[0157] Amine oxide: AMPHITOL 20N, manufactured by Kao Corporation

[0158] ·Sulfobetaine: AMPHITOL 20HD, manufactured by Kao Corporation

[0159] ·Butyl diethylene glycol: BDG, manufactured by Nippon Emulsifier Co., Ltd., ClogPow 0.66

Claims

1. A surfactant composition, wherein: contain: (a) a branched alkyl sulfosuccinate salt represented by the following general formula (a1), hereinafter referred to as component (a); and (b) a surfactant other than component (a), hereinafter referred to as component (b), In the formula, R 1a , R 2a are independently 2-propylheptyl, A 1 , A 2 are each independently an alkylene group having 2 or more and 4 or less carbon atoms, x and y are average added molar numbers and are each independently 0, M 1 is an inorganic cation, The component (b) is one or more surfactants selected from nonionic surfactants and anionic surfactants other than the component (a), and the nonionic surfactant is one or more nonionic surfactants selected from polyoxyalkylene monoalkyl ethers or polyoxyalkylene monoalkenyl ethers and alkyl (poly)glycosides.

2. The surfactant composition according to claim 1, wherein The anionic surfactant other than the component (a) is a compound of the following general formula (b1), R 1b -(OA 1b ) p -OSO3M(b1) In the formula, R 1b is a hydrocarbon group having 10 to 16 carbon atoms, A 1b is an alkylene group having 2 or 3 carbon atoms, p is the average number of added moles and is 0 to 5, and M is a hydrogen atom or a cation.

3. The surfactant composition according to claim 1 or 2, wherein The content of the component (a) is 0.05 mass % or more and 5 mass % or less.

4. The surfactant composition according to claim 1 or 2, wherein The content of the component (b) is 0.15 mass % to 6 mass %.

5. The surfactant composition according to claim 1 or 2, wherein The mass ratio of the content of the component (a) to the content of the component (b), component (a) / component (b), is 0.05 to 5.

6. The surfactant composition according to claim 1 or 2, wherein The mass ratio of the content of the component (a) to the content of the component (b), component (a) / component (b), is 0.05 to 1.

5.

7. The surfactant composition according to claim 1 or 2, wherein contains (c) a solvent, hereinafter referred to as component (c), The component (c) is one or more water-soluble organic solvents selected from the group consisting of benzyl alcohol, ethanol, propylene glycol, butyl diethylene glycol and phenoxyethanol.

8. The surfactant composition according to claim 7, wherein The content of the component (c) is 1 mass % or more and 8 mass % or less.

9. The surfactant composition according to claim 1 or 2, wherein The component (a) is contained as a foam control agent.

10. A foam control agent, wherein: The foam control agent is composed of component (a), wherein component (a) is a branched alkyl sulfosuccinate salt represented by the following general formula (a1): In the formula, R 1a , R 2a are independently 2-propylheptyl, A 1 , A 2 are each independently an alkylene group having 2 or more and 4 or less carbon atoms, x and y are average added molar numbers and are each independently 0, M 1 is an inorganic cation, The foam control agent is used for a composition containing one or more surfactants selected from nonionic surfactants and anionic surfactants other than component (a), and the nonionic surfactant is one or more nonionic surfactants selected from polyoxyalkylene monoalkyl ethers or polyoxyalkylene monoalkenyl ethers, and alkyl (poly)glycosides.

11. Use of component (a) as a foam control agent for a composition containing one or more surfactants selected from nonionic surfactants and anionic surfactants other than component (a), wherein: The component (a) is a branched alkyl sulfosuccinate salt represented by the following general formula (a1), In the formula, R 1a , R 2a are independently 2-propylheptyl, A 1 , A 2 are each independently an alkylene group having 2 or more and 4 or less carbon atoms, x and y are average added molar numbers and are each independently 0, M 1 is an inorganic cation, The nonionic surfactant is one or more nonionic surfactants selected from the group consisting of polyoxyalkylene monoalkyl ethers, polyoxyalkylene monoalkenyl ethers, and alkyl (poly)glycosides.

12. A method for controlling the foaming property of a surfactant composition, wherein: The foaming property of the composition is controlled by adding component (a) to a composition containing component (b), wherein component (a) is a branched alkyl sulfosuccinate salt represented by the following general formula (a1), and component (b) is a surfactant other than component (a). In the formula, R 1a , R 2a are independently 2-propylheptyl, A 1 , A 2 are each independently an alkylene group having 2 or more and 4 or less carbon atoms, x and y are average added molar numbers and are each independently 0, M 1 is an inorganic cation, The component (b) is one or more surfactants selected from nonionic surfactants and anionic surfactants other than the component (a), and the nonionic surfactant is one or more nonionic surfactants selected from polyoxyalkylene monoalkyl ethers or polyoxyalkylene monoalkenyl ethers and alkyl (poly)glycosides.

13. The method for controlling the foaming property of a surfactant composition according to claim 12, wherein: The polyoxyalkylene monoalkyl ether or polyoxyalkylene monoalkenyl ether is a compound of the following general formula (b2), R 2b -O-(A 2b O) n -H(b2) In the formula, R 2b is a hydrocarbon group having 10 to 18 carbon atoms, A 2b It is an alkylene group having 2 or 3 carbon atoms, and n is an average added mole number and is a number of 3 or more and 25 or less.

14. The method for controlling the foaming property of a surfactant composition according to claim 12 or 13, wherein: The alkyl (poly)glycoside is a compound of the following general formula (b3), R 3b -(OR 4b ) m G z (b3) In the formula, R 3b is a straight-chain alkyl group having 8 to 16 carbon atoms, R 4b is an ethylene group or a propylene group, G is a residue derived from a reducing sugar, m is a number of 0 to 6 on average, and z is a number of 1 to 2 on average.

15. The method for controlling the foaming property of a surfactant composition according to claim 12 or 13, wherein: The anionic surfactant other than the component (a) is a compound of the following general formula (b1), R 1b -(OA 1b ) p -OSO3M(b1) In the formula, R 1b is a hydrocarbon group having 10 to 16 carbon atoms, A 1b is an alkylene group having 2 or 3 carbon atoms, p is the average number of added moles and is 0 to 5, and M is a hydrogen atom or a cation.

16. The method for controlling the foaming property of a surfactant composition according to claim 12 or 13, wherein: The component (a) is added so that its content in the composition becomes 0.05 mass % or more and 5 mass % or less.

17. The method for controlling the foaming property of a surfactant composition according to claim 12 or 13, wherein: The composition contains 0.15 mass % to 6 mass % of the component (b).

18. The method for controlling the foaming property of a surfactant composition according to claim 12 or 13, wherein: The component (a) is added so that the mass ratio of the amount of the component (a) added to the content of the component (b) in the composition is 0.05 to 5 (component (a) / component (b)).

19. The method for controlling the foaming property of a surfactant composition according to claim 12 or 13, wherein: The component (a) is added so that the mass ratio of the amount of the component (a) added to the content of the component (b) in the composition is 0.05 or more and 1.5 or less in terms of component (a) / component (b).

20. The method for controlling the foaming property of a surfactant composition according to claim 12 or 13, wherein: The composition contains (c) a solvent, hereinafter referred to as component (c), The component (c) is one or more water-soluble organic solvents selected from the group consisting of benzyl alcohol, ethanol, propylene glycol, butyl diethylene glycol and phenoxyethanol.

21. The method for controlling the foaming property of a surfactant composition according to claim 12 or 13, wherein: The control of foamability includes at least one of improvement of foamability and stabilization of foam.

22. The method for controlling the foaming property of a surfactant composition according to claim 12 or 13, wherein: The foaming property of the composition when it is sprayed in a foam form from a container having a foam spraying mechanism is controlled.

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