JPH0948963A - Viscosity modifier for aqueous surfactant solution - Google Patents

Abstract

(57) Abstract: An object of the present invention is to use an aqueous solution containing anionic, nonionic and cationic surfactants and to reduce the viscosity without impairing the performance before addition. It is intended to provide a viscosity modifier and a detergent composition containing the viscosity modifier. SOLUTION: The viscosity modifier for an aqueous surfactant solution of the present invention has the general formula (1): (In the formula, R ¹ , R ² and R ³ represent the same or different alkyl groups having 1 to 3 carbon atoms, R 1
⁴ represents one or more alkylene groups, and n
Represents a number of 1 to 500, and X represents a halogen atom or an anionic atomic group).

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a viscosity modifier for an aqueous solution containing a surfactant and a detergent composition containing the viscosity modifier.

[0002]

2. Description of the Related Art Generally, the higher the concentration of an aqueous surfactant solution, the higher the viscosity. In addition, the viscosity may increase due to various formulations such as shampoo, rinse, and kitchen detergent. Such a high-viscosity aqueous surfactant solution has problems in working such as pumping is difficult or it is clogged in a tank, and it is difficult to take out of the container during use. For this reason, it has been conventionally practiced to reduce the viscosity by adding a thinning agent. For example, JP-B-60-32676 discloses a method of adding polyoxyethylene alkyl ether to a high-concentration slurry of higher alcohol ethoxylate sulfate salt, JP-A-56-36596. JP-A-58-118899 describes a method of adding a lower polyalkylene ether sulfate, and a method of adding polyethylene glycol or polypropylene glycol. .

[0003]

However, the above-mentioned technique is merely for decreasing the viscosity of the aqueous surfactant solution, and the positive effect is exerted on the performance of the aqueous surfactant solution before and after the addition of the thinning agent. Did not affect. These are merely for lowering the viscosity and obtaining a high-concentration surfactant solution, and when added to a shampoo, rinse, or kitchen detergent, there was a problem that the performance before addition was significantly impaired. In addition, there is a problem that a viscosity reducing agent using an anionic surfactant cannot be used in an aqueous cationic surfactant solution.

Further, JP-A-3-227912 discloses that (A) 1 to 30% by weight of an amphoteric surfactant as an essential component, and (B)
General formula

Embedded image [In the formula, R ¹ , R ² and R ³ respectively have 1 to 3 carbon atoms.
Which may be the same or different, a + b = 5 to 50 and a = 0 to 3, and a / (a
+ B) <0.2], and a shampoo composition comprising 1 to 10% by weight of a polyether type quaternary ammonium salt represented by the formula: and water.

Further, Japanese Patent Laid-Open No. 4-18013 discloses (A)
One or more anionic surfactants, and (B) a polyether type quaternary ammonium salt represented by the general formula (2), and (A) of (B) to 1 part by weight. A shampoo composition is disclosed, characterized in that the amount is from 0.003 to 0.2 parts by weight.

Further, JP-A-4-118701 discloses a shampoo composition in which a specific anionic surfactant is used in combination with a polyether type quaternary ammonium salt represented by the general formula (2). There is.

However, in the shampoo compositions disclosed in these publications, the polyether type quaternary ammonium salt represented by the general formula (2) is added to the shampoo composition.
It is only used as a component for imparting a rinse effect at the same time as washing hair and imparting an excellent conditioning effect, and there is no knowledge of the action and effect as a viscosity modifier.

Therefore, the object of the present invention is to solve the above problems and to use it in any aqueous solution containing anionic, nonionic or cationic surfactants, and to lower the viscosity without impairing the performance before addition. It is intended to provide a viscosity modifier for an aqueous solution containing a surfactant and a detergent composition containing the viscosity modifier.

[0009]

The present inventor has accomplished the present invention as a result of intensive research to achieve the above object. That is, the viscosity modifier for an aqueous solution containing a surfactant of the present invention has the general formula (1)

Embedded image (In the formula, R ¹ , R ² and R ³ represent an alkyl group having 1 to 3 carbon atoms which may be the same or different, and R ⁴ represents one kind or two or more kinds of alkylene groups. , N is 1 to
Represents a number of 500, and X represents a halogen atom or an anionic atomic group).

Further, the present invention relates to a detergent composition containing the viscosity modifier for aqueous solution containing a surfactant.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the compound represented by the above general formula (1), R ¹ , R ² and R ³ may be the same or different and are alkyl groups having 1 to 3 carbon atoms, That is, they are a methyl group, an ethyl group, a propyl group, and an isopropyl group.

R ⁴ is one or more kinds of alkylene groups, and among them, an alkylene group having 2 to 4 carbon atoms is preferable from the viewpoint of compatibility with an aqueous solution. (R ⁴ −
O) _n part is obtained by adding ethylene oxide, propylene oxide, butylene oxide or the like, and the alkylene oxide or the like to be added is homopolymerized, 2
It may be random polymerization or block polymerization of more than one kind. Further, of the alkylene groups having 2 to 4 carbon atoms, a propylene group is particularly preferable, and when two or more kinds of alkylene oxides are added, one of them is preferably propylene oxide. When two kinds of ethylene oxide and propylene oxide are added, block polymerization is preferable.

Further, the degree of polymerization, that is, n is a number of 1 to 500, preferably 5 to 100. Below this range, a sufficient viscosity-reducing effect cannot be obtained as a viscosity modifier, and above this range, product stability such as precipitation and separation will deteriorate, which is not preferable.

Next, X is a halogen atom or an anionic atomic group. The halogen atom is fluorine, chlorine, bromine, iodine and the like, and examples of the anion atomic group include carboxylate anion, nitrate anion, hydrogensulfate anion, alkylsulfate anion and phosphate anion. Of these, chlorine is preferable.

Specific examples of the compound represented by the general formula (1) in the present invention include: oxyethylene polyoxypropylene methyl diethyl ammonium chloride; oxyethylene polyoxy propylene methyl diethyl ammonium methyl sulfonate; Oxyethylene polyoxypropylene methyl diethyl ammonium carboxylate; Oxyethylene polyoxypropylene methyl diethyl ammonium bromide; Oxyethylene polyoxypropylene polyoxybutylene methyl diethyl ammonium chloride; Polyoxypropylene methyl diethyl ammonium chloride; Oxyethylene chloride Polyoxypropylene dimethylpropyl ammonium; Polyoxypropylene trimethyl ammonium chloride; Oxyethyl chloride It can be mentioned, chloride polyoxypropylene methyl ethyl propyl ammonium and the like; down polyoxypropylene trimethylammonium; Polyoxyethylene polyoxypropylene trimethylammonium chloride.

The amount of the viscosity adjusting agent for aqueous solution containing a surfactant of the present invention is not particularly limited, but is preferably 0.1% by weight to 20% by weight, more preferably 0.3% by weight to 15% by weight.
% By weight. If the blending amount is too small, a sufficient viscosity reducing effect cannot be obtained as a viscosity modifier, and if the blending amount is too large, a viscosity reducing effect can be obtained, but the performance of the surfactant aqueous solution prior to blending may be impaired. Not preferred because of

The surfactant-containing aqueous solution viscosity modifier of the present invention can be used in any of anionic, nonionic and cationic aqueous surfactant solutions, and can be used in various conditions and modes without impairing the performance before addition. It can be adjusted to a suitable viscosity.

The surfactant-containing aqueous solution viscosity adjusting agent of the present invention is used as a cleaning agent for hair shampoo, body shampoo, pre-shampoo, hair conditioner, hair treatment, rinse, kitchen detergent, clothes detergent, etc. The raw material may be added during the compounding or may be added finally.

Further, the detergent composition having the viscosity-adjusting agent for aqueous solution containing a surfactant of the present invention, particularly the detergent composition exemplified above as handled by a human hand, has a low viscosity and therefore has a good handleability. Then, the original performance is not impaired, and an excellent detergent composition is obtained.

[0020]

Next, the present invention will be described more specifically based on examples. Example 1 The viscosity modifiers of the present invention used in the test are as follows: Viscosity modifier 1 Polyoxypropylene chloride (25 moles added) methyl diethyl ammonium Viscosity modifier 2 Polyoxypropylene chloride (40 moles added) methyl Diethylammonium viscosity modifier 3 Polyoxypropylene chloride (25 mol addition) trimethylammonium viscosity modifier 4 Oxyethylenepolyoxypropylene chloride (40 mol addition) methyldiethylammonium viscosity modifier 5 Polyoxypropylene chloride (25 mol addition) methylethyl Isopropyl ammonium

In order to measure the effect of adjusting the viscosity of the surfactant-containing aqueous solution, the cationic modifier, anionic and nonionic surfactant-containing aqueous solutions each contain 3% by weight of each of the viscosity modifiers 1 to 5 of the present invention, propylene glycol or ethanol. A blended sample was prepared. Then, the sample was placed in a beaker for measuring viscosity, the anion and cation surfactant aqueous solutions were kept at 40 ° C and the nonionic surfactant aqueous solution was kept at 30 ° C in a thermostat, and the viscosity was measured by a BM type viscometer. Was measured. The surfactants used are as follows: anionic surfactant sodium tallow alcohol sulfate 30%; cationic surfactant stearyl trimethyl ammonium chloride 60%; nonionic surfactant polyoxyethylene (200 mol) polyoxypropylene ( 40) Glycol 30% The obtained results are shown in Table 1. The numerical values in the table represent the viscosity (cPs).

[0022]

[Table 1]

Example 2 Anionic surfactant-based hair cleansing compositions shown in Table 2 were prepared and their viscosity and performance were evaluated. The results are also shown in Table 2. The evaluation methods are as follows: (1) Viscosity The sample was placed in a beaker for measuring viscosity and kept in a constant temperature bath at 20 ° C.
It was held at and measured with a BM type viscometer. (2) Usability Using the comparative product 2 as a standard product, other test samples were compared.
Very good = +2 points, somewhat good = +1, normal = 0 points,
Slightly bad = -1 point, very bad = -2 points, "flexibility", "slipperiness" as the total score of 10 panelists,
The three points of "combability" were evaluated.

[0024]

[Table 2]

As shown in the products 1 to 10 of the present invention, it can be seen that the viscosity is effective in a smaller amount as compared with the comparative product. In the evaluation of the feeling of use, the adverse effect of lowering the viscosity did not appear, and a better result than the comparative product was obtained.

Example 3 A cationic surfactant-based hair cleansing composition shown in Table 3 was prepared, and its viscosity and performance were evaluated. The results are also shown in Table 3. The evaluation methods are as follows: (1) Viscosity The sample was placed in a beaker for measuring viscosity and kept in a constant temperature bath at 20 ° C.
It was held at and measured with a BM type viscometer. (2) Usability When comparing the standard product of comparative product 5 with other test samples, very good = + 2 points, somewhat good = + 1 point, normal = 0 point, slightly bad = −1 point, very bad = As a total score of 10 panelists as -2 points, 4 points of "flexibility", "smoothness", "combability" and "gloss" were evaluated.

[0027]

[Table 3]

As shown in the products 11 to 18 of the present invention, it is understood that even in the aqueous solution of the cationic surfactant, a smaller amount of the viscosity is effective as compared with the comparative product. Also,
In the evaluation of the feeling of use, the adverse effect of lowering the viscosity did not appear, and a better result was obtained than the comparative product.

Example 4 A kitchen cleaning composition shown in Table 4 was prepared and its viscosity was evaluated. The results are also shown in Table 4. The evaluation methods are as follows: (1) Viscosity The sample was placed in a beaker for measuring viscosity and kept in a constant temperature bath at 20 ° C.
It was held at and measured with a BM type viscometer.

[0030]

[Table 4]

As shown in the products 19 to 26 of the present invention, it can be seen that even in the aqueous solution of the cationic surfactant, a smaller amount of the viscosity is effective as compared with the comparative product.

[0032]

The effects of the present invention include anion, nonion,
It is an object of the present invention to provide a viscosity modifier that can be used in any of the cationic surfactant-containing aqueous solutions and can be added to reduce the viscosity of the intended surfactant aqueous solution.

Claims (5)

[Claims] 1. A compound of the general formula (1) (In the formula, R ¹ , R ² and R ³ represent the same or different alkyl groups having 1 to 3 carbon atoms, R 1
⁴ represents one or more alkylene groups, and n
Represents a number from 1 to 500, and X represents a halogen atom or an anionic atomic group). 2. The viscosity of a surfactant-containing aqueous solution according to claim 1, wherein R ⁴ in the compound represented by the general formula (1) is one or more alkylene groups having 2 to 4 carbon atoms. Regulator. 3. The viscosity modifier for aqueous solution containing a surfactant according to claim 1, wherein in the compound represented by the general formula (1), at least one R ⁴ is a propylene group. 4. The compound represented by the general formula (1), wherein X is a chlorine atom.
Item 10. A viscosity modifier for aqueous solution containing a surfactant according to the item. 5. A detergent composition containing the viscosity adjusting agent for aqueous solution containing a surfactant according to any one of claims 1 to 4.