JPH06192041A - W/o-type emulsion composition for hair - Google Patents

Abstract

PURPOSE:To obtain the subject composition smoothly spreadable with palm, having light feeling, imparting hair with excellent gloss and flexibility and stable over a long period. CONSTITUTION:This W/O-type emulsion composition for hair is composed of a silicone compound having high molecular weight, a branched ester compound containing 3-18C hydrocarbon groups having branched carboxylic acid component and/or alcohol component, a nonionic surfactant having an HLB of 1-12 and a quaternary ammonium salt-type cationic surfactant.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a water-in-oil type emulsion composition for hair. More specifically, it relates to a water-in-oil type emulsion composition of a polymeric silicone excellent in long-term stability.

[0002]

2. Description of the Related Art Emulsion compositions for hair using a high molecular silicone compound are easy to spread on the palm, light, and
It imparts excellent luster and supple feel to the hair (JP-A-63-37154, JP-A-1-252664).
Issue). However, this is an oil-in-water emulsion, and the water resistance is poor, so the effect does not last. A method of stabilizing a water-in-oil emulsion which is generally unstable with a water-swelling viscosity mineral in order to have excellent water resistance and long-lasting effect (JP-A-3-157317), and a solution-type emulsion Thing (JP-A-3
No. 209345) is proposed.

[0003]

However, although the conventional water-in-oil emulsions have been improved in stability, they are not satisfactory in long-term stability. Also, the conventional solution type causes squeaky hair,
It lacked flexibility. Therefore, today, there is a strong demand for the appearance of a water-in-oil type emulsion composition for hair, which is as good in use as the conventional one and is stable for a long period of time.

[0004]

In view of such circumstances, the inventors of the present invention have been able to extend the ability to extend in the palm of the hand, provide lightness, impart excellent luster and supple feel to the hair, and keep it for a long period of time. As a result of intensive studies to obtain a water-in-oil type emulsion composition for hair having excellent stability, the present invention has been accomplished. That is, in the present invention, the branched ester compound (B) and HLB each having a hydrocarbon group having a carbon number of 3 to 18 in which a high molecular weight silicone compound (A), a carboxylic acid component and / or an alcohol component are branched have 1 to 12 respectively. A water-in-oil type emulsion composition for hair, which comprises the nonionic surfactant (C) and the quaternary ammonium salt type cationic surfactant (D).

The high molecular weight silicone compound (A) used in the present invention has a weight average molecular weight of usually 50.
The compound having a polysiloxane bond as the main chain is used. For example, it is represented by the following general formula (1), and is a substance that exhibits flexible elasticity at room temperature.

[0006]

[Chemical 1]

(In the formula, R ₁ is a methyl group or a hydroxyl group, and R _{2 is}
Is a methyl group or a phenyl group, a is 2,000 to 50,
It is an integer of 000. R ₁ and R ₂ may be the same or different. )

Specific examples of the high molecular weight silicone compound (A) include dimethylpolysiloxane (weight average molecular weight 1
200,000), methyl-phenyl polysiloxane (weight average molecular weight 1.83 million), terminal silanol dimethyl polysiloxane (weight average molecular weight 1 million), terminal silanol diphenyl polysiloxane (weight average molecular weight 1.9 million) and terminal silanol methyl phenyl polysiloxane ( The weight average molecular weight is 1,000,000). Above, (A)
Those exemplified above may be used in combination of two or more kinds.

The branched ester compound (B) used in the present invention is a mono- or polyvalent ester having a branched carboxylic acid component and / or alcohol component and a hydrocarbon group having 3 to 18 carbon atoms. Of these, branched monoesters are preferred.

Examples of the branched monoester include branched monoesters of a branched carboxylic acid and a linear alcohol, branched monoesters of a linear carboxylic acid and a branched alcohol, and branched monoesters of a branched carboxylic acid and a branched alcohol.

Among these branched monoesters, branched monoesters of a branched carboxylic acid and a branched alcohol are preferable, and examples thereof include isopropyl isostearate, isobutyl isostearate, and isopentyl isostearate.
Isoheptyl isostearate, isononyl isostearate, isocetyl isostearate, isostearyl isostearate, isohexyl isopalmitate, isooctyl isopalmitate, isodecyl isopalmitate, isopropyl isononanoate, isononyl isononanoate, isononanoate isodecyl, isononanoate isotridecyl, isononanoate. Examples thereof include isostearyl, isopropyl isovalerate, isononyl isovalerate, isostearyl isovalerate, isobutyl isobutyrate, isodecyl isobutyrate, and isomyristyl isobutyrate. Among these, isononyl isononanoate, isooctyl isononanoate, isononyl isomyristate, and isodecyl isononanoate are particularly preferable. As described above, what is exemplified as (B) is
You may use 2 or more types together.

In the present invention, the nonionic surfactant (C) having an HLB of 1 to 12 can be used. HL
Various methods of determining B are known, such as the Atlas company method and the Kawakami method, but Sangyo Tosho Co., Ltd. edition "Surfactant Handbook" No. 3
It can be shown by the method of Davies described on page 13.

Examples of (C) include glycerin fatty acid esters such as glyceryl monolaurate, glyceryl monostearate, glyceryl monooleate, polyglycerin fatty acid esters such as diglyceryl diisostearate, triglyceryl diisostearate, decaglyceryl decaoleate and poly. Oxyethylene alkyl ethers such as polyoxyethylene (2 mol) oleyl ether, polyoxyethylene (2 mol) nonylphenyl ether, polyoxyethylene hydrogenated castor oil esters, such as polyoxyethylene (5 mol) hydrogenated castor oil, polyoxyethylene (7 mol) hydrogenated castor oil, sorbitan fatty acid ester such as sorbitan trioleate, sorbitan monooleate, sorbitan monolaurate, monostearin. Sorbitan, polyoxyalkylene-modified organopolysiloxanes, for example, the following general formula (2), compounds having the structure of (3) or (4)

[0014]

[Chemical 2]

[0015]

[Chemical 3]

[0016]

[Chemical 4]

(Wherein R ₃ is a methyl group or a phenyl group,
R ₄ is a hydrogen atom or an alkyl group having 1 to 12 carbon atoms, e
Is an integer of 1 to 5, f is 2 or 3, g, b, and d are average numbers, g is an integer of 1 to 35, b is an integer of 1 to 200, and d is an integer of 1 to 50. A number in which the oxyalkylene-modified organopolysiloxane contains 5 to 40% by weight of a polyoxyalkylene group in the molecule, and the polyoxyalkylene-modified organopolysiloxane has a molecular weight of 2,000 or more. ) And so on. General formula (2), (3)
And compounds having the structures of (4) include SH377
5C [manufactured by Toray Dow Corning Silicone Co., Ltd.],
KF-945A (manufactured by Shin-Etsu Chemical Co., Ltd.) can be used.

In the compounds having the structures of the general formulas (2), (3) and (4), when the content of the polyoxyalkylene group is 5% by weight or less, the compound is dissolved in the branched ester compound (B) to give the active agent. As a result, no sufficient effect can be obtained. 40
When the content is more than 5% by weight, the hydrophilicity increases and the desired water-in-oil emulsion cannot be obtained. If the molecular weight is 2,000 or less, the obtained emulsion is unstable, which is not preferable.

Among these (C), polyglycerin fatty acid ester, sorbitan fatty acid ester, and polyoxyalkylene-modified organopolysiloxane are preferable in terms of usability and long-term stability of the resulting emulsion.
As described above, two or more kinds exemplified as (C) may be used in combination.

The quaternary ammonium salt type cationic surfactant (D) used in the present invention is a quaternary ammonium salt type cationic surfactant (distaryldimethylammonium chloride, stearyldimethylbenzylammonium chloride) prepared from a higher alkylamine. Chloride, stearyl trimethyl ammonium chloride, etc.), quaternary ammonium salt type cationic surfactants made from lower amines (stearamide ethyl diethyl benzyl chloride, cetyl pyridinium chloride, etc.) (Takehiko Fujimoto, published by Sanyo Kasei Co., Ltd.) 75 and those described in JP-A-3-157317.

Of these (D), distearyldimethylammonium chloride, stearyldimethylbenzylammonium chloride and stearyltrimethylammonium chloride are preferred. Those exemplified above as (D) may be used in combination of two or more kinds.

Various additives can be used in combination with the composition of the present invention. For the purpose of adjusting the feel as an additive,
Monohydric alcohols (ethanol, propanol, butanol, etc.) and polyhydric alcohols (ethylene glycol, propylene glycol, 1,3-butylene glycol, glycerin, sorbit, sorbitan, etc.) can be used in combination.
Preferred among these alcohols are ethanol,
Propylene glycol, 1,3-butylene glycol,
It is glycerin. The amount of the alcohol compounded is within the range of 70% by weight based on all the components of the composition of the present invention.

Similarly, an alkylene oxide adduct of alcohol can be used together for the purpose of adjusting the touch. The alkylene oxide adduct of alcohol is obtained by adding an alkylene oxide having 2 to 4 carbon atoms to the above-mentioned alcohol, for example, an adduct of ethylene oxide, an adduct of propylene oxide, an adduct of butylene oxide and a combination thereof. Can be given. When two or more kinds of alkylene oxides are used in combination, block or random addition may be used. Of these, preferred are ethylene oxide adducts and / or propylene oxide adducts. The number of moles of alkylene oxide added is usually 1 to 100 moles, preferably 2 to 50 moles. The content of the alkylene oxide adduct of alcohol is within the range of 20% by weight based on the total amount of all the components of the composition of the present invention.

Examples of the luster-imparting agent include non-drying vegetable oils such as avocado oil, almond oil, olive oil, camellia oil, persic oil, castor oil, liquid paraffin, squalane and other non-volatile liquid hydrocarbons, and dimethyl polysiloxane (weight). Silicone oil such as decamethylcyclopentasiloxane having an average molecular weight of 1,000) can be used in combination. The compounding amount is 30 based on the total amount of components of the composition of the present invention.
It is within the range of weight%.

As the thickener, CMC, xanthan gum, magnesium silicate, magnesium aluminum silicate, etc., and as the antioxidant, 2,6-di-tert.
-Butyl-p-cresol, 2,2-methylene-bis-
(4-methyl-6-tert-butylphenol) and the like, as an ultraviolet absorber, benzophenone-3 and the like,
As a hair nourishing agent, pantothenic acid, cholesterin, etc., as a cooling agent, 1-menthol, etc., and as a preservative,
Methyl p-oxybenzoate and the like can be used in combination. The compounding amount is within the range of 3% by weight based on the total amount of all components.

When the formulation of the water-in-oil type emulsion composition for hair of the present invention is shown based on the weight of the composition, usually (A) is 1 to 1.
0 wt%, (B) 1-80 wt%, (C) 0.1-
10% by weight, (D) 0.1 to 10% by weight, water 5 to 8
It is 0% by weight.

When the content of (A) is less than 1% by weight, the composition is poor in gloss and suppleness of the hair, and when it exceeds 10% by weight, the feel is heavy, which is not preferable. (B) is 1
If it is less than wt%, the composition is not stable, and
If it exceeds 80% by weight, a squeaky sensation occurs and the suppleness becomes poor. When the content of (C) is less than 0.1% by weight, the composition is poor in stability, and when it exceeds 10% by weight, the feel of the composition becomes heavy, which is not preferable. When (D) is less than 0.1% by weight, the composition has poor stability and 10% by weight.
Above this, the composition is unlikely to be a water-in-oil emulsion.

An example of the method for producing the composition of the present invention will be described. (A), (B), (C) and (D) are mixed and heated to 60 to 80 ° C. Water is gradually added to this mixture and emulsified. After emulsification, if necessary, additives and the like are mixed and cooled to room temperature to obtain the composition of the present invention.

[0029]

EXAMPLES The present invention will be further described below with reference to examples, but the present invention is not limited thereto. The test method is as follows.

Stability test Immediately after preparation, 1 at each temperature (0 ° C, room temperature, 45 ° C)
The appearance after 6 months was visually observed. Criteria Criteria Not separated: ○ Slightly separated: △ Completely separated: ×

Sensory Evaluation Twenty panelists were asked to actually use it and a sensory test was performed on the palm (lightness of the spread) and on the hair (gloss and its durability, suppleness and its durability). It was Judgment Criteria Lightness is judged to be lightly spread by 15 or more panelists ◎ It is judged that 10 or more and less than 15 are lightly expanded ○ It is judged that 5 or more and less than 10 are lightly expanded △ It is judged that 4 or less are lightly expanded × Gloss and its durability 15 or more panelists judge that hair has gloss and its durability ◎ 10 or more and less than 15 people judge that hair has gloss and its durability ○ 5 or more and less than 10 hair It is judged that the hair has luster and its durability. △ 4 people or less judge that the hair has luster and its sustainability. × Suppleness and its durability. 15 or more panelists judge that the hair is supple and its durability is improved. 10 or more and less than 15 people judged that the suppleness and durability of the hair would be improved ○ 5 or more and less than 10 people judged that the suppleness and the durability of the hair would be improved △ 4 or less people had good suppleness of the hair and its durability × determined that that

Examples 1 to 3 and Comparative Examples 1 to 3 With the mixing ratios shown in Table 1, Examples 1 to 3 and Comparative Examples 1 to 1
A composition of 4 was obtained. The manufacturing method was as follows. Mixing (A-1) to (E-3) used in each example, 60 to 8
Heat to 0 ° C. Water was gradually added to this mixture to emulsify it. After the emulsification, pan, PG, GL, and KAM were appropriately mixed, and finally paraben was mixed and then cooled to room temperature to obtain a target composition. Comparative Example 4 Comparative Example 4 was obtained with the mixing ratios shown in Table 1. This is (A-1), (E-2), (F-1), (F-2) at room temperature.
And ET and paraben after mixing and emulsifying.

[0033]

[Table 1]

(A-1): Dimethyl polysiloxane (weight average molecular weight 1.2 million) (A-2): Dimethyl polysiloxane (weight average molecular weight 900,000) (B-1): Isononyl isononanoate (B-2): Isooctyl isononanoate (C-1): sorbitan trioleate (C-2): diglyceryl diisostearate (D-1): distearyldimethylammonium chloride (E-1): dimethylpolysiloxane (weight average molecular weight 1000) ( E-2): Decamethylcyclopentasiloxane (E-3): Isoparaffin, Isopar M, manufactured by Exxon (F-1): Polyoxyethylene (4 mol) nonylphenyl ether (F-2): Polyoxyethylene ( 40 mol) Nonylphenyl ether Pan: Liquid paraffin ET: Ethanol P G: Propylene glycol GL: Glycerin KAM: Aluminum magnesium silicate Paraben: Methyl p-oxybenzoate

The compositions of the present invention (Examples 1 to 3) and comparative products (Comparative Examples 1 to 4) were evaluated for performance, and the results are shown in Table 2.

[0036]

[Table 2]

As shown in Table 2, the compositions of the present invention (Examples 1 to 3) were much superior to the comparative products (Comparative Examples 1 to 4) in long-term stability and sensory evaluation.

[0038]

The water-in-oil type emulsion composition for hair of the present invention is
It spreads easily in the palm of the hand, is light, gives a glossy and supple feel to the hair, and has excellent long-term stability.

Claims (3)

[Claims] 1. A high molecular weight silicone compound (A), a carboxylic acid component and / or an alcohol component are branched.
A branched ester compound (B) each having a hydrocarbon group of 3 to 18 carbon atoms, a nonionic surfactant (C) having an HLB of 1 to 12 and a quaternary ammonium salt type cationic surfactant (D). A water-in-oil type emulsion composition for hair. 2. The branched ester compound (B) is a monoester of a branched carboxylic acid and a branched alcohol.
The composition as described. 3. A water-in-oil type emulsion composition for hair comprising 1 to 10% by weight of (A) and 1 to 80% by weight of (B),
The composition according to claim 1 or 2, wherein (C) is 0.1 to 10% by weight, (D) is 0.1 to 10% by weight, and water is 5 to 80% by weight.