JP2608500B2 - Shampoo composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shampoo composition which contains a polyoxyalkylene alkyl sulfosuccinate, has good viscosity stability at high temperatures, and does not gel at low temperatures.

[0002]

2. Description of the Related Art Polyoxyalkylene alkyl sulfosuccinates are very mild to the skin and are suitable surfactants for shampoos and other personal cleansing agents.

[0003] However, polyoxyalkylene alkyl sulfosuccinates, particularly polyoxyethylene alkyl sulfosuccinates, have the disadvantage that when used in liquid shampoos, their ester bonds are susceptible to hydrolysis at high temperatures.

[0004] Therefore, a shampoo composition containing a polyoxyalkylene alkyl sulfosuccinate is
There is a problem that viscosity stability is poor at high temperatures and gelation easily occurs at low temperatures.

[0005]

Accordingly, an object of the present invention is to provide a shampoo composition which contains a polyoxyalkylene alkyl sulfosuccinate, has excellent viscosity stability at high temperatures, and does not gel even at low temperatures. It is in.

[0006]

Means for Solving the Problems In view of such circumstances, the present inventors have conducted intensive studies and as a result, have found that by using an alkylene glycol alkyl ether in combination with a polyoxyalkylene alkyl sulfosuccinate, the viscosity stability at high temperatures can be improved. The inventors have found that a shampoo composition having excellent properties and not causing gelation at low temperatures can be obtained, and completed the present invention.

That is, the present invention provides a shampoo composition containing an alkylene glycol alkyl ether and a polyoxyalkylene alkyl sulfosuccinate.

The alkylene glycol alkyl ether used in the present invention includes, for example, the following general formula (1)

[0009]

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(Wherein, R ¹ represents a hydrogen atom or a methyl group, and R ² represents an alkyl group having 1 to 5 carbon atoms). Specifically, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol monopentyl ether, diethylene glycol monoisopropyl ether, diethylene glycol mono t-butyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether , Dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, dipropylene glycol monopentyl ether, dipropylene glycol monoisopropyl ether, dipropylene glycol mono t-butyl ether, and the like.
Among these, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, and diethylene glycol monobutyl ether are particularly preferable.

The compounding amount of the alkylene glycol alkyl ether is preferably in the range of 0.1 to 25% by weight, particularly preferably in the range of 1 to 10% by weight. This amount is 2
If it exceeds 5% by weight, the feel during rinsing is impaired, and if it is less than 0.1% by weight, the effects of the present invention cannot be obtained, which is not preferred.

The polyoxyalkylene alkyl sulfosuccinate used in the present invention is not particularly limited, but those represented by the following general formulas (2) and (3) are preferred.

[0013]

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Among the compounds represented by the above general formulas (2) and (3), the sulfosuccinates of higher alcohols or ethoxylates thereof include, for example, sulfosuccinates of secondary alcohol ethoxylates having 11 to 13 carbon atoms. Disodium salt [manufactured by Nippon Shokubai Kagaku Kogyo Co., Ltd., sophthanol MES 3,5,7,9,12
O)), lauryl alcohol or lauryl alcohol ethoxylate (EO) = 3,4,6,9,1
2) Disodium salt of sulfosuccinate ester (manufactured by Toho Chemical Industries, Cohacool L-400, etc.), having 12 to 12 carbon atoms
15 synthetic primary alcohols or their ethoxylates (EO
= 2 to 12), a disodium salt of a sulfosuccinic acid ester having 8 to 22 carbon atoms, a Guerbet alcohol having 8 to 22 carbon atoms, or a disodium salt of a sulfosuccinic acid having an ethoxylate (EO = 2 to 12), and the like. Examples of the sulfosuccinate derived from polyethylene glycol laurate (EO = 1,2) amide disodium salt of sulfosuccinate, and polyethylene glycol oleate (EO = 1,2) amide disodium salt of sulfosuccinate And disodium sulfosuccinates of coconut oil fatty acid polyethylene glycol (EO = 4).

The amount of the polyoxyalkylene alkyl sulfosuccinate in the shampoo composition is 0.5 to 30.
%, Preferably 1 to 20% by weight. If this amount exceeds 30% by weight, it is difficult to mix other components such as oils, which is not preferable. On the other hand, if it is less than 0.5% by weight, there is little need to mix the alkylene glycol alkyl ether and the application of the present invention is less significant.

The shampoo composition of the present invention may contain various surfactants, oils and other components in addition to the above essential components. Examples of such anionic surfactants include linear, EO / PO addition type alkyl / alkenyl ether sulfates, alkyl / alkenyl sulfates, olefin sulfonates, alkane sulfonates, saturated / unsaturated fatty acid salts, EO / PO addition type alkyl / alkenyl ether carboxylate, α-sulfo fatty acid salt / ester, phosphate ester type surfactant, amino acid type surfactant, carboxylic acid type surfactant etc .; as nonionic surfactant Are EO / PO, EO / BO addition type non-ionic surfactants, higher fatty acid alkanolamides / alkylene oxide adducts thereof, sugar-based nonionic surfactants, and cationic surfactants include di-long-chain alkyl 4 Quaternary ammonium salt, mono long chain alkyl quaternary ammonium salt, di long chain alkyl polyoxyethylene quaternary ammonium salt, mono long Alkylpolyoxyethylene quaternary ammonium salts, bis (hydroxyalkyl) quaternary ammonium salts, quaternary ammonium salts having an amide / ester bond, etc .; amphoteric surfactants include betaine type (carbo, amide, sulfo, hydroxysulfo, Amide sulfo), imidazoline type, amide amino acid type and the like.

Examples of the oil include ester oils, waxes, wax esters, hydrocarbons, silicones, silicone derivatives, polyoxyalkylene derivatives, polyoxyalkylene alkyl ether derivatives, and higher alcohols. Examples of the diluting solvent include volatile carriers such as water and lower alcohols.

In addition, known components in an amount that does not impair the effects of the present invention, that is, protein extracts, plant extracts such as crude drugs, water-soluble polymer substances, sequestering agents, preservatives, bactericides, glycerin, etc. A humectant, a pH adjuster, an ultraviolet absorber, an antioxidant, an oxidizing agent, a reducing agent, a dye, a fragrance, and the like can be added as required.

The shampoo composition of the present invention can be produced by mixing, stirring and the like according to a conventional method.

[0020]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto.

Example 1 A shampoo composition having the composition shown in Table 1 below was prepared.
The solution was stored in a storage at 1 ° C. for one month, and the viscosity stability and gelation at low temperature were evaluated according to the following criteria. Table 1 shows the results.

Evaluation Criteria Viscosity Stability: The viscosity stability was compared with that stored at room temperature (25 ° C.) for the same period and evaluated as follows. Little change compared to 25 ° C storage product ○ Change compared to 25 ° C storage product △ Significant change compared to 25 ° C storage product × Gelation at low temperature (5 ° C): No gelation ○ Somewhat gelation △ Gelation ×

[0023]

[Table 1]

Example 2 Anti-dandruff shampoo composition (% by weight) N-coconut fatty acid acyl-sodium L-glutamate 5 polyoxyethylene lauryl sulfosuccinate disodium 10 coconut oil fatty acid-N-carbomethoxyethyl-N-carboxyethyl Imidazolinium betain sodium 8 Coconut oil fatty acid diethanolamide 5 Ethylene glycol distearate 2 Diethylene glycol monoethyl ether 1 Pylactone auramine (manufactured by Hoechst) 0.5 Oxybenzone 0.1 Fragrance 0.5 Ethanol 1 Purified water Appropriate amount

Example 3 Shampoo composition (% by weight) Triethanolamine monolauryl phosphate 12 Disodium polyoxyethylene myristylsulfosuccinate 2 Palm oil fatty acid-N-carbomethoxyethyl-N-carboxyethylimidazolinium betaine sodium 8 Palm oil fatty acid diethanolamide 5 Ethylene glycol distearate 2 Diethylene glycol monoethyl ether 10 High polymerization degree silicone 1 Fragrance 0.5 Ethanol 1 Purified water Appropriate amount

The shampoo compositions of Examples 2 and 3 were all excellent in viscosity stability and did not gel at low temperatures.

[0027]

EFFECT OF THE INVENTION The shampoo composition of the present invention is excellent in that it contains polyoxyalkylene alkyl sulfosuccinate, has good viscosity stability at high temperatures, and does not gel even at low temperatures.

Claims (1)

(57) [Claims] 1. A shampoo composition comprising an alkylene glycol alkyl ether and a polyoxyalkylene alkyl sulfosuccinate.