JPS63162614A - Transparent gelatinous composition - Google Patents

Abstract

PURPOSE:To obtain the titled composition, having excellent transparency as well as stability with time and useful in wide fields of cosmetics, etc., by containing a branched quaternary ammonium salt and amidoamine compound having a long-chain alkyl group and adjusting pH within a specific range. CONSTITUTION:A composition containing (A) a compound expressed by formula I [R is an alkyl group selected from (a) a branched alkyl group expressed by formula II and (b) straight-chain alkyl groups expressed by formula III (R3 is methyl or ethyl; m and n are numbers to provide 8-16 total number of carbon atoms) and the branching ratio (a/a+b) thereof is 10-100wt%; R1 and R2 are benzyl, 1-3C alkyl, etc.; X<-> is halogen ion or organic anion] or formula IV (R4 and R5 are 2-12C alkyl; R6 is formula V, etc.) and (B) a compound expressed by formula VI (R7 is 11-21C saturated hydrocarbon group; R8 and R9 are H, 1-4C hydrocarbon group, etc.; x is 2 or 3) at 1:10-5:1 ratio of the components (A) to (B). The total amount of the components (A) and (B) is 0.2-50wt% and pH is 3-6.5.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention provides a transparent gel-like composition having excellent transparency and oral stability, containing a branched quaternary ammonium salt and an amidoamine compound having a long-chain alkyl group. relating to things.

[Conventional technology and its problems]

What has been conventionally known as a transparent gel composition is
There are various types. For example, there are clay minerals such as hydrous aluminum silicate and sodium magnesium silicate, but when these are used in cosmetics, etc., when mixed with other ingredients (oil ingredients), other ingredients may become an obstacle to structure formation. Therefore, it is necessary to incorporate a rich clay mineral, and at the same time, it gives a feeling of harshness, roughness, and dryness peculiar to inorganic salts, which is not desirable as a cosmetic product. In addition, natural polymers such as pectin and gelatin have been known for a long time as gels made of polymer compounds, but their quality may deteriorate due to seasonal fluctuations, they may be easily attacked by microorganisms, or they may be affected by other ingredients. It had some drawbacks such as being easy to use. There are synthetic polymers such as carboxyvinyl polymers that have improved these problems, but they take a long time to dissolve, are difficult to incorporate surfactants, are gels, have poor miscibility with oil components, and have poor usability. There was a drawback. Furthermore, we have developed methods for forming transparent gels with structures such as lame 2 liquid crystals by utilizing the hydrophilic-aqueous balance using nonionic surfactants, gels using cationic surfactants alone, and gels using cationic surfactants/higher alcohols. There are gels made from a combination of compounds, etc., and gels made from an amidoamine compound alone, but they all have problems such as insufficient transparency or poor stability depending on oral temperature, etc. [Means for achieving this goal] Under the current circumstances, the present inventors have conducted extensive research into the production of transparent gels, and have found that instead of using conventional cationic surfactants and amidoamide alone, they can be used in combination in certain amounts. The present invention was completed based on the discovery that an excellent transparent gel-like composition that eliminates the above-mentioned drawbacks can be obtained by blending and further adjusting the pH to a certain range of 7.

That is, the present invention provides the following components (A) and (B) (A) the following formula (1) [wherein B is a branch R represented by (a),

an alkyl group and (b) an alkyl group selected from straight-chain alkyl groups represented by CI (4-+CH1i- (in the formula, R is methyl, ethyl is ethyl, m and n are the total carbon atoms of the alkyl group); 8 to 16), the branching rate of the group R (
a) / (a) + (b) in an amount of 10 to 100% by weight, and I- and R represent a group selected from a benzyl group and an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group. and is an Xl halogen ion or an organic anion] or the following formula (U) Torioshi and melon are groups R, CH, mouth ψHCH! - or 1 carbon number
~3 alkyl group, R,, R1, x is of formula CI)K
One or more branched quaternary ammonium salts represented by (B) the following formula (1) υ (in which % "1 is a saturated hydrocarbon group having 11 to 21 carbon atoms") , R1 and - represent a hydrogen atom, a hydrocarbon group having 1 to 4 carbon atoms, or a hydroxyalkyl group having 1 to 4 carbon atoms, and X
represents an integer of 2 to 3), and contains an amidoamine compound having a long-chain alkyl group, and the content ratio of the components (A) and (B) is 1.
= within the range of 10 to 5:1, contains 0.2 to 50% by weight of component (A) and component (B) in total, and has a pH of
The purpose of the present invention is to provide a transparent gel-like composition in which the

Among the components (A) of the present invention, the branched quaternary ammonium salt represented by the formula CI) is usually synthesized using an oxoalcohol having 8 to 16 carbon atoms as a raw material. Examples include dialkyldimethylammonium salts, dialkylmethylhydroxyethylammonium salts, and dialkylmethylbenzylammonium salts having an alkyl group derived from alcohol. Counter ions for these ammonium salts include halogen ions such as chlorine, iodine, and bromine, and organic anions such as methosulfate, ethosulfate, methophosphate, and ethophosphate.

In formula CD, the alkyl group R has a total carbon number of 8 to 16 (a) CH, (CH,)mCHCH! -> and (b
) R8 is a group selected from CHs-tcH*i, and R1 is a methyl or ethyl group. Branching rate of R (a) / (a
) + (b) is determined from the branching rate of the oxo alcohol used as the raw material, and is generally 10 to 100 weight tS, preferably 10 to 50 weight tS. Further, the total carbon number of the alkyl group R may be 8 to 16, but those having a certain distribution are preferable, and those having the following distribution are particularly preferable.

Cm-st! 5 ”t 1 Below C□, :
10-35'lFt C,: 15-40vrt% C14: 20-45wt C,, j 5-30 wt % C1, = 5Wtts or less A particularly preferred example is a carbon number of 8-16 and a branching rate of 10-5.
Dialkyldimethylammonium chloride of formula CI) having 0 wt* alkyl radicals R.

Among the components (A) of the present invention, the branched quaternary ammonium salt represented by the formula (If) usually has 8 to 28 carbon atoms.
Ruhe 7 # w-ru (R4CH1CH1CHCH,0
)l) ヲ(jJ＜ りとし)

Preferred examples of this branched quaternary ammonium salt include:
Alkyl type quaternary salts such as alkyltrimethylammonium salts, alkyldimethylhydroxyethylammonium salts, and alkyldimethylbenzylammonium salts having an alkyl group derived from Guerbet alcohol; dialkyldimethylamsonium salts, dialkylmethylhydroxyethylammonium salts, Dialkylmethylbenzyl ammonium salts and the like can be mentioned. Counter ions for these ammonium salts include halogen ions such as chlorine, iodine, and bromine, and organic anions such as methosulfate, ethosulfate, methophosphate, and ethophosphate. Examples of the alkyl group derived from Guerbet alcohol include 2-hexyldecyl, 2-octyldotecyl, 2-decyltetradecyl, and 2-dodecylhexadecyl. Particularly preferred specific examples of the branched quaternary ammonium salt (1) include 2-decyltetradecyltrimethylammonium chloride, 12-dodecylhexadecyltrimethylammonium chloride, di-2-hexyldecyldimethylammonium chloride, and di-2-octyldodecylammonium chloride. etc. can be mentioned.

These quaternary ammonium salts represented by formula (I) or (If) can be used alone or as a mixture.

In addition, the amidoamine compound of component (,B) has the formula (1)
It can be synthesized by a known method or can be obtained as a commercially available product. Examples of the amidoamine compounds include stearic acid dimethylaminoethylamide, stearic acid dimethylamine propylamide, stearic acid diethylaminoethylamide,
Stearic acid diethylamine propylamide, stearic acid diglobylaminoethylamide, stearic acid dipropylaminoglopylamide, stearic acid dibutylaminoethylamide, stearic acid dibutylaminoglopylamide, isostearic acid diethylaminoethylamide, stearic acid jetanol aminoethyl Examples include amidoamine compounds such as amide, lauric acid diethylaminoethylamide, myristic acid diethylaminoethylamide, valmitic acid diethylaminoethylamide, and oleic acid diethylaminoethylamide. Among these, stearic acid diethylaminoethylamide, stearic acid dimethylaminopropylamide, and the like are particularly preferred in terms of performance, stability, easy availability, and the like.

The transparent gel-like composition of the present invention can be prepared, for example, by adding components (A) and (B) to water heated to 35 to 85°C with stirring;
Adjust the pH to 3 to a 5 using a suitable acid or alkali.
K14JI L can be produced by further stirring and cooling to room temperature.

Component (A) (B) Nor ratio A/B is the weight ratio -? 'l/1
0 to 5/1, preferably 1/3 to 3/1, and the total amount A+B is α2 to 50 inches (hereinafter simply referred to as "C"), more preferably 0.5 to 10 inches. . Outside this range, it is difficult to obtain a transparent, gel-like composition. Also, pH
can be adjusted to 3 to 6.5, more preferably 4 to 6, by using organic acids such as enoic acid, lactic acid, malic acid, etc.; . Furthermore, if necessary, the pH can be kept stable by using a combination of salts having a known PR buffering ability. If the pH is 3 or less, there is a problem in terms of irritation, and if the pH is 7 or more, it is difficult to obtain a transparent composition.

The solvent used in the transparent gel composition of the present invention is preferably water, and is used in a range of 50 to 99.8%.

Furthermore, the transparent gel composition of the present invention may optionally contain fats and oils such as higher alcohols, liquid paraffin, and esters; long-chain alkyl compounds, lower alcohols such as ethanol; humectants such as polyhydric alcohols; amino acids, toxins, etc. Natural products and biological components such as animal and plant extracts; Surfactants such as nonionic activators and cationic activators; Polymers and latex such as cationic polymer latex; Preservatives, antioxidants, thickeners, fragrances,
Additives such as pigments and dyes, stabilizers, (burr forming agents such as glycol esters), etc. may be added to the extent that transparency and gel-like properties are not impaired.

The transparent gel-like composition obtained by the above-mentioned method includes those that have an isotropic appearance, viscous liquids, liquid crystals that have anisotropy, and those that have fluidity at room temperature or those that do not have fluidity at room temperature. .

〔Effect of the invention〕

The transparent gel composition of the present invention can be used in a wide range of fields such as cosmetics, quasi-drugs, pharmaceuticals, softeners, detergents, ornaments, and toys. When this transparent gel-like composition is applied, for example, to cosmetics, it can give the user a refreshing feeling and a clean image based on the characteristics of its dosage form, that is, its appearance. This is a big factor, especially in summer products. Furthermore, when giving a burl-like appearance, it is possible to make the burl luster look even more beautiful by adding a pearlescent agent to the transparent gel-like composition.

In addition, it has excellent stability, and is extremely stable without loss of transparency, especially when stored at low temperatures for a long period of time.

In terms of gel-forming properties, it has an appropriate viscosity, so there is little dripping and it is easy to handle when handling liquids.

For example, when applied to cosmetics, it has an excellent usability, and especially when used as a hair cosmetic such as a hair rinse, it exhibits the excellent hair conditioning effect unique to branched cations.

〔Example〕

Next, the present invention will be explained with reference to Examples, but the present invention is not limited to these Examples. The reward method used in this example is as follows.

(1) Transparency: The prepared composition was placed in a vi-100-volume transparent glass container, and its appearance was observed with the naked eye and evaluated according to the following criteria.

Transparency evaluation criteria: Evaluation details O: The whole is uniform and transparent with no abnormalities such as separation or aggregation.

Δ: The whole is uniform, there are no abnormalities such as separation or aggregation, and the grain is transparent.

×: Heterogeneous, separated, agglomerated rings f: Observed, cloudy and opaque.

(2) Gel-forming property: The composition prepared in vI4 was placed in a 100-volume transparent glass container, and the viscosity (30°C) was evaluated when measured for 1 minute using a BM type viscometer at Rho 1-42 6 rpm. The evaluation criteria are as follows.

○: 1000 cps or more (gel-like) Δ: 100
Less than 0 epH soo cps or more X: 500
Less than cpa (3) Stability over time: After storing the samples used in (1) and (2) above in a thermostatic bath of -5°C to 50°C for one month, the changes in transparency and gel formation properties were evaluated according to the following criteria. Evaluated with O: Transparency and gel forming property did not change from immediately after preparation.

Δ: Transparency and gel-forming properties slightly changed from immediately after preparation.

x: Transparency and shell formation properties were completely different from immediately after preparation.

Example 1 Compositions having the compositions shown in Table 1 were prepared, and their transparency, gel-forming properties, and stability over time were examined. The results are also shown in the same table. The composition was prepared using purified water (60°C) heated to 70°C.
), one or both of the quaternary ammonium salt and amidoamine compounds (1) to (5) heated to the same temperature were added with stirring, and then the pH was adjusted to 5 with 50 cicitric acid, and further This was done by cooling while stirring.

Margin below (note) *Oxo-method commercially available alcohol with 12 to 15 carbon atoms (
It is a branched quaternary ammonium salt derived from Dopanol 23 and Dopanol 45 (Mitsubishi Yuka Co., Ltd.) and has a branching rate (branched product content) of 20%.

Guerbet alcohol (NG ECOL 160B).

Synthesized from Mitsubishi Kasei Corporation).

Among the above compositions, all of the products of the present invention exhibited excellent smoothness, flexibility, and antistatic effect as hair rinses.

Furthermore, in Invention Products 1 and 2, compositions in which stearic acid diethylaminoethylamide was replaced with stearic acid dimethylaminopropylamide, and Invention Product 2, N-(2
-Decyl)tetratesyl-N,N,N-)dimethylammonium chloride was replaced with N-(2-dodecyl)hexadecyl-N,N,N-)limethylan7inium chloride, and similar effects were obtained.

Example 2 To investigate the effect of pH, a composition with pH 2-9 was prepared using 2% 2-decyltetradecyltrimethylammonium chloride and 3-stearic acid dimethylamine ethylamide and its transparency.

Gel-forming properties and oral stability were evaluated in the same manner as in Example 1. To prepare the composition, add the above-mentioned components heated to the same temperature to purified water heated to 70°C with stirring, and then add to purified water heated to 70°C.
- After adjusting the pH to a predetermined value using an aqueous citric acid solution or an aqueous 10-sodium hydroxide solution, the mixture was cooled to room temperature with further stirring. The results are shown in Table 2.

Table 2 Among the above compositions, the compositions having a pH of 4 to 6 had less oily feel when used as a hair rinse, and exhibited good smoothness, flexibility, and antistatic effect.

Example 3 Using 2-decyltetradecyltrimethylammonium chloride as component (A) and stearic acid diethylaminoethylamide as component (B), a composition with the amounts and ratios shown in Table 3 below was prepared. Transparency, gel-forming properties, and stability over time were examined in the same manner as in Example 1. The results are also shown in the same table. In addition, the manufacturing method of the composition is based on its pH.
It is the same as Example 1 except that it was prepared in 1 and 5.

Among the above compositions, the product of the present invention had less oily feel when used as a hair rinse, and exhibited good smoothness, flexibility, and antistatic effect.

Written amendment to the above procedures (voluntary) February 2θ, 1985 1, Indication of the case: 1988 Patent Application No. 311694 2, Name of the invention: Transparent dull-shaped composition 3, Person making the amendment Relationship with the case: Applicant Address Name (091) Kao Corporation 4, Agent Name (6870) Patent Attorney Ariga Santun.

Address Same as above - Mr. Hajime
Name (7756) Patent Attorney Toshio Takano Address Same Name (8632) Patent Attorney Nobuo Ono In the first and second lines of page 5, the phrase "or depending on temperature over time, etc." should be corrected to "or depending on time over time, temperature, etc.".

(2) Same, page 13, lines 11-12, ``Polymer/latex such as cationic limmer, latex'' is corrected to ``Polymer/latex such as cationic limmer, latex''.

(3) In the same page, page 20, r#E2 table, in the column for "transparency", the column for pH34, "Δ", is corrected to "○".

Procedural amendment (voluntary) January 13, 1986

Claims (1)

[Claims] 1. The following two components (A) and (B) (A) The following formula (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼(I) [In the formula, R is (a)▲ There are mathematical formulas, chemical formulas, tables, etc. Branched alkyl groups indicated by ▼ and (b) CH_3-(CH_2)-_
An alkyl group selected from straight chain alkyl groups represented by n (in the formula, R_3 is a methyl or ethyl group, m and n are numbers such that the total number of carbon atoms in the alkyl group is 8 to 16), and a branch of the group R The ratio (a)/(a)+(b) is 10 to 100% by weight, R_1 and R_2 represent a group selected from a benzyl group and an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, X^- is a halogen ion or an organic anion] Or the following formula (II) ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼ (II) [In the formula, R_4 and R_5 are alkyl groups having 2 to 12 carbon atoms, and R_6 is a branched quaternary group represented by a group ▲There are mathematical formulas, chemical formulas, tables, etc.▼ or an alkyl group having 1 to 3 carbon atoms, and R_1, R_2, and X^- have the same meanings as in formula (I)] One or more ammonium salts, (B) The following formula (III) ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼ (III) (In the formula, R_7 represents a saturated hydrocarbon group having 11 to 21 carbon atoms, R_8 and R_9 represent a hydrogen atom, a hydrocarbon group having 1 to 4 carbon atoms, or a hydroxyalkyl group having 1 to 4 carbon atoms, and x represents an integer of 2 to 3. contains a compound, and the content ratio of the above (A) component and (B) component is 1
:10 to 5:1, contains 0.2 to 50% by weight of component (A) and component (B) in total, and has a pH of
A transparent gel-like composition having a ratio of 3 to 6.5.