JP3407770B2 - Gel cosmetics - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a gel cosmetic,
More particularly, it relates to a gel cosmetic having a light spread, a unique moist feel, and excellent stability over time not only in a closed system but also in an open system.

[0002]

2. Description of the Related Art Silicone oil has a light feel and a refreshing feel, so that it can be used in makeup cosmetics,
It is used in various cosmetics such as hair cosmetics and quasi drugs. In particular, gel cosmetics are used in liquid foundations, sunscreen gels, moisture creams, hair gels, antiperspirant creams and the like. As the gel composition containing silicone oil, a gel composition containing 2 to 30 parts by weight of dextrin fatty acid ester in 100 parts by weight of silicone oil (Japanese Patent Publication No. 3-6179), organohydrogenpolysiloxane cross-linking polymerization A gel-like composition comprising a substance and a low-viscosity silicone oil, and a cosmetic containing the same (JP-A-63-152308) have been proposed.

However, these conventional silicone oil-containing gel cosmetics have a problem that the stability with time is poor and the silicone oil separates. In order to solve this problem, the present inventors have proposed a gel cosmetic containing a specific silicone compound and a lower alcohol.
This gel cosmetic has a problem in that it lacks a moist feel and causes a decrease in viscosity in a container having a poor sealing property such as a tube.

[0004]

In view of the above circumstances, the present inventors have found that the silicone oil has a light spread, a unique moist feel, and excellent stability over time not only in a closed system but also in an open system. As a result of intensive studies to obtain a gel-containing cosmetic composition, it was found that this problem can be solved by blending a specific silicone compound and a polyhydric alcohol compound, and the present invention has been completed.

[0005]

Means for Solving the Problems That is, the present invention provides (1) one or more silicone oils in an amount of 30-80.
% By weight , (2) 5 to 30% by weight of one or more polyether-modified silicones represented by the following general formula (A), (3) 2 to 6% by weight of water, (4) One or more polyhydric alcohol compounds
It is a gel cosmetic characterized by being mixed with 5 to 30% by weight (excluding 5% by weight) .

General formula (A)

[Chemical 2] [Wherein A is a methyl group, a phenyl group and a general formula:
_{-C 3 H 6 O (C 2} H 4 O) a (C 3 H 6 O) b R '( wherein, ^R'
Is a group selected from the group consisting of a hydrogen atom, an acyl group, and an alkyl group having 1 to 4 carbon atoms, and a is 5 to 5
It is an integer of 0 and b is an integer of 5 to 50. ) Is a group selected from the group consisting of polyoxyalkylene groups, and at least one of the three A's is a polyoxyalkylene group. R is a methyl group or a phenyl group, m is an integer of 50 to 1000, and n is 1
Is an integer of -40. ]

The silicone oil used in the present invention is not particularly limited, but specifically, dimethylpolysiloxane, methylphenylpolysiloxane,
Diorganopolysiloxanes with low to high viscosity such as dimethylsiloxane / methylphenylsiloxane copolymers; cyclic siloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, tetramethyltetraphenyltetracyclosiloxane; high degree of polymerization Examples of the gum-like dimethylpolysiloxane, gum-like dimethylsiloxane / methylphenylsiloxane copolymer, gum-like dimethylpolysiloxane cyclic siloxane solution; trimethylsiloxysilicic acid and the like, trimethylsiloxysilicic acid cyclic siloxane solution, and the like. 6 to 6 carbon atoms
A diorganopolysiloxane having 50 alkyl groups,
Examples include amino-modified silicone, alkyl-modified silicone, and fluorine-modified silicone.

[0008] Of the above silicone oils, cyclic dimethylpolysiloxane is preferable because it has particularly excellent usability in terms of lightness of spreadability.

Further, in the gel cosmetic of the present invention,
The amount of the silicone oil is a 3 0-80 wt%.

When the content is within the above range, it is possible to obtain the effect that the stability of the gel cosmetic material can be kept good.

The polyether-modified silicone used in the present invention has the general formula:

[Chemical 3] Is an organopolysiloxane having a polyoxyalkylene group. [Wherein A is a methyl group,
Phenyl group and the general _{formula: -C 3 H 6 O (C} 2 H 4 O) a (C 3
H ₆ O) _b R ^{'(wherein, R'} is a hydrogen atom, an acyl group, and a group selected from the group consisting of alkyl group having 1 to 4 carbon atoms, also a is an integer of 5-50 , B is 5 to 50
Is an integer. ) Is a group selected from the group consisting of polyoxyalkylene groups, and at least one of the three A's is a polyoxyalkylene group. R is a methyl group or a phenyl group, and m is 50 to 1000.
Is an integer, and n is an integer of 1-40. ]

[0012] As the acyl group R ^', specifically, formyl group, acetyl group, propionyl group, butyroyl group,
Acryloyl group, benzoyl group, toluoyl group and the like are exemplified, and as the alkyl group having 1 to 4 carbon atoms, specifically,
Examples thereof include a methyl group, an ethyl group, an i-propyl group, an n-propyl group, a t-butyl group and an n-butyl group. In addition,
In the polyoxyalkylene group, when a or b is less than 5, the polyether-modified silicone does not show a sufficient thickening effect, and when a or b exceeds 50, the gel-like cosmetic obtained is obtained. The charge becomes sticky. Further, the content of the polyoxyalkylene group is not particularly limited, but the content of the polyoxyalkylene group is preferably 20 to 70% by weight. this is,
This is because when the content of the polyoxyalkylene group is less than 20% by weight, the thickening effect of the polyether-modified silicone is significantly reduced, and when it exceeds 70% by weight, the compatibility with the silicone oil is low. This is because it will decrease.

Further, m is an integer of 50 to 1000,
n is an integer of 1-40. This is because when m is less than 50 and n is less than 1, the thickening effect is insufficient, and when m is more than 1000 and n is more than 40, the gel obtained is This is because the cosmetic cosmetics have a sticky feeling.

The molecular weight of the polyether-modified silicone used in the present invention is not particularly limited.
Although the viscosity at 0 ° C. is not particularly limited, the viscosity when the polyether-modified silicone used in the present invention is a 50 wt% solution of octamethyltetrasiloxane because it forms a particularly stable gel and has a dry feel. Is preferably in the range of 1000 to 100000 cps.

The amount of the polyether-modified silicone used in the present invention is in the range of 5 to 30 % by weight.
This is because in a gel cosmetic of the present invention, the amount of the polyether-modified silicone is 5 wt% or more, more favorable
It is not possible to obtain a gel cosmetic that is stable , and it is 30% by weight.
This is because the gel cosmetic comes to have a sticky feeling when it exceeds.

Further, the compounding amount of water used in the present invention is 2
Is in the range of up to 6% by weight. This is most preferably stable gel-like cosmetic obtained et been, or without water separated from the gel-like cosmetic, which is order to Ru obtained stable gel-like cosmetic.

The polyhydric alcohol compound used in the present invention is not particularly limited, but ethylene glycol, propylene glycol, trimethylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, tetramethylene glycol, 2,3. -Butylene glycol,
Pentamethylene glycol, 2-butene-1,4-diol, dihydric alcohols such as hexylene glycol and octylene glycol, trihydric alcohols such as glycerin, trimethylolpropane and 1,2,6-hexanetriol, pentaerythritol. , Polyhydric alcohols having 4 or more valences such as xylitol, sugar alcohols such as sorbitol, mannitol, maltitol, maltotriose, sucrose, erythritol, glucose, fructose, hydrolyzed starch, maltose, xylitolose, reduced sugars with reduced starch, and the like. can give. Furthermore, in addition to these low molecular weight polyhydric alcohols, diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, tetraethylene glycol, diglycerin, polyethylene glycol, triglycerin,
Polyhydric alcohol polymers such as tetraglycerin and polyglycerin, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, ethylene glycol monohexyl ether, ethylene glycol mono-2-methylhexyl ether, Divalent alcohol alkyl ethers such as ethylene glycol isoamyl ether, ethylene glycol benzyl ether, ethylene glycol isopropyl ether, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono ether Chill ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol butyl ether, diethylene glycol methyl ethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monobutyl ether, propylene glycol isopropyl ether , Dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol butyl ether and other dihydric alcohol alkyl ethers, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethyl ether Glycol monobutyl ether acetate, ethylene glycol monophenyl ether acetate, ethylene glycol disuccinate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, Dihydric alcohol ether esters such as propylene glycol monophenyl ether acetate, glycerin monoalkyl ethers such as chimyl alcohol, cerakil alcohol and batyl alcohol, tetrahydrofurfuryl alcohol, POE tetrahydrofurfuryl alcohol, POP butyl ether, PO
P POE butyl ether, tripolyoxypropylene glycerin ether, POP glycerin ether, PO
Examples thereof include P glycerin ether phosphoric acid and POP POE pentaerythritol ether.

The amount of the polyhydric alcohol compound used in the present invention is in the range of 5 to 30% by weight (excluding 5% by weight), preferably 5 to 15% by weight.

This is because when the amount of the polyhydric alcohol is less than 5% by weight, the stabilizing effect of the gel cosmetic is reduced, and when it exceeds 30% by weight, the gelled product obtained is obtained. This is because the cosmetic material becomes sticky.

Among the above polyhydric alcohol compounds, those used as a moisturizing agent are preferable because a particularly moist and good feeling can be obtained. For example, 1,3
-Butylene glycol, polyethylene glycol, sorbitol, propylene glycol, glycerin and the like are particularly preferable from the viewpoint of usability.

In addition to the above-mentioned essential components, the gel cosmetic of the present invention may optionally contain a moisturizing agent, an ultraviolet absorber,
Ingredients usually used in cosmetics such as fragrances, antioxidants, antiseptic / antifungal agents, extender pigments, and coloring pigments can be added within a range that does not impair the effects of the invention.

[0022]

EXAMPLES Next, the gel cosmetics of the present invention will be specifically described with reference to Examples and Comparative Examples. The present invention is not limited to this. The blending amount is% by weight.

[0023]   (Example 1) Gel cosmetic   (1) Decamethylcyclopentasiloxane 70   (2) Dimethyl polysiloxane (6CS) 8   (3) Dipropylene glycol 10   (4) Polyether-modified silicone (general formula B) 10   (5) Ion-exchanged water 2   (6) Paraben suitable amount   (7) Antioxidant proper amount   (8) Perfume proper amount

(General formula B)

[Chemical 4]

(Production method) First, (1) to (4) and (6) to (8) were mixed and dissolved at room temperature, and then (5) was added to cause gelation while continuing stirring with a homomixer to give a gel form. I got cosmetics.

[0026]   (Example 2) Gel cosmetic   (1) Decamethylcyclopentasiloxane 70   (2) Dimethyl polysiloxane (6CS) 8   (3) 1,3 butylene glycol 10   (4) Polyether-modified silicone (general formula B) 10   (5) Ion-exchanged water 2   (6) Paraben suitable amount   (7) Antioxidant proper amount   (8) Perfume proper amount

(General formula B)

[Chemical 5]

(Manufacturing method) In the same manner as in Example 1, Example 2
Got

[0029]   (Example 3) Gel cosmetic   (1) Decamethylcyclopentasiloxane 70   (2) Dimethyl polysiloxane (6CS) 8   (3) Propylene glycol 10   (4) Polyether-modified silicone (general formula B) 10   (5) Ion-exchanged water 2   (6) Paraben suitable amount   (7) Antioxidant proper amount   (8) Perfume proper amount

(General formula B)

[Chemical 6]

(Production Method) In the same manner as in Example 1, Example 3
Got

[0032]   (Example 4) Gel cosmetic   (1) Decamethylcyclopentasiloxane 69   (2) Dimethyl polysiloxane (6CS) 8   (3) Dipropylene glycol 6   (4) Ethanol 5   (5) Polyether-modified silicone (general formula B) 10   (6) Ion-exchanged water 2   (7) Paraben suitable amount   (8) Antioxidant proper amount   (9) Perfume suitable amount

(General formula B)

[Chemical 7]

(Production method) (1) to (5) and (7) to
After (9) was mixed and dissolved at room temperature, (6) was added and gelled while continuing stirring with a homomixer to obtain a gel cosmetic.

[0035]   (Comparative Example 1) Gel cosmetic   (1) Decamethylcyclopentasiloxane 70   (2) Dimethyl polysiloxane (6CS) 8   (3) Ethanol 10   (4) Polyether-modified silicone (general formula B) 10   (5) Ion-exchanged water 2   (6) Paraben suitable amount   (7) Antioxidant proper amount   (8) Perfume proper amount

(General formula B)

[Chemical 8] (Production Method) Comparative Example 1 was obtained in the same manner as in Example 1.

(Evaluation) Each of Examples 1 to 4 and Comparative Example 1 was put into two 50 ml screw tubes in the same amount and allowed to stand at room temperature for 1 week in a sealed state, and then the lid of one screw tube was opened and the other was opened. One was left at room temperature while keeping the sealed state. Changes in viscosity and appearance were observed. Table 1 shows the results of appearance stability, and Table 2 shows the results of viscosity stability. The viscosity was measured with a B-type viscometer, and the unit of numbers in Table 2 is (CP
S). Further, FIGS. 1 to 5 are graphs of Table 2. Further, Table 3 shows the results of the overall stability in the open system.

[0038]

[Table 1]

[0039]

[Table 2]

[0040]

[Table 3] ○ Stable △ Slightly unstable × Unstable

As is clear from Tables 1 to 3, the gel cosmetic of the present invention was excellent in stability even in an open system.

Special panel 2 for Examples 1 and 2 and Comparative Example 1
Sensory evaluation by 0 persons resulted in the results shown in Table 4.

The symbols in the table are ◎ 15 to 20 people judged that the usability was good. ○ 10 to 14 people judged that the usability was good. △ 5 to 9 people judged that the usability was good. × 0 to 4 people judged that the usability was good.

[0044]

[Table 4]

As is clear from Table 4, the gel cosmetic of the present invention was excellent in lightness of spreading and moisturizing.

[0046]   (Example 5) Gel foundation   (1) Decamethylcyclopentasiloxane 49   (2) Dimethyl polysiloxane (6CS) 2   (3) Propylene glycol 10   (4) Polyether-modified silicone (general formula C) 10   (5) Ion-exchanged water 2   (6) Titanium dioxide treated with dextrin palmitate 10   (7) Mica treated with dextrin palmitate 12   (8) Talc treated with dextrin palmitate 2   (9) Dextrin palmitate treated iron oxide 1   (10) 2-Methylhexyl paramethoxycinnamate 2   (11) Paraben suitable amount   (12) Antioxidant proper amount   (13) Perfume proper amount

(General formula C)

[Chemical 9]

(Production Method) (1), (2) and (10)
After (13) was mixed and dissolved at room temperature, (3) and (4) were added with stirring with a homomixer and thoroughly mixed.
Then, while continuing stirring with a homomixer, (5) was added to cause gelation. (6) to (9) were added thereto, and the mixture was mixed and dispersed with a homomixer, degassed and filled to obtain a gel foundation.

[0049]   (Comparative Example 2) Gel foundation   (1) Decamethylcyclopentasiloxane 55   (2) Dimethyl polysiloxane (6CS) 2   (3) Polyether-modified silicone (general formula C) 12   (4) Ion-exchanged water 2   (5) Titanium dioxide treated with dextrin palmitate 11   (6) Mica treated with dextrin palmitate 13   (7) Talc treated with dextrin palmitate 2   (8) Dextrin palmitate treated iron oxide 1   (9) 2-Methylhexyl paramethoxycinnamate 2   (10) Paraben suitable amount   (11) Antioxidant proper amount   (12) Perfume proper amount

(General formula C)

[Chemical 10]

(Production Method) (1), (2) and (9)
After (12) was mixed and dissolved at room temperature, (3) was added with stirring with a homomixer and thoroughly mixed. Then, while continuing stirring with a homomixer, (4) was added to cause gelation. (5) to (8) were added to this, mixed and dispersed with a homomixer, deaerated and filled to obtain Comparative Example 2.

[0052]   (Comparative Example 3) Gel foundation   (1) Decamethylcyclopentasiloxane 49   (2) Dimethyl polysiloxane (6CS) 2   (3) Ethanol 10   (4) Polyether-modified silicone (general formula C) 10   (5) Ion-exchanged water 2   (6) Titanium dioxide treated with dextrin palmitate 10   (7) Mica treated with dextrin palmitate 12   (8) Talc treated with dextrin palmitate 2   (9) Dextrin palmitate treated iron oxide 1   (10) 2-Methylhexyl paramethoxycinnamate 2   (11) Paraben suitable amount   (12) Antioxidant proper amount   (13) Perfume proper amount

(General formula C)

[Chemical 11]

(Production Method) Comparative Example 3 was obtained in the same manner as in Example 5.

(Evaluation) The sensory evaluation of Example 5 and Comparative Examples 2 and 3 was carried out by 20 specialist panels, and the results shown in Table 5 were obtained.

The symbols in the table are ◎ ────── 15 to 20 people judged that the usability was good. ○ ────── 10 to 14 people judged to have good usability. △ ────── 5 to 9 people judged that the usability was good. × ────── 0-4 people judged to be good.

[0057]

[Table 5] In the table, the symbol for stability is: ◎ ───── Very stable ○ ───── Stable △ ───── Slightly unstable × ───── Unstable Table 5 As described above, the gel foundation of the present invention was excellent in lightness of spreading and moistness.

(Examples 6 to 9, Reference Examples 1 to 3 and Comparative Examples 4 and 5) Example 6 Example 7 Example 8 (1) Decamethylcyclopentasiloxane 78 59 74 (2) 1,3-butylene Glycol 6 25 10 (3) Polyether-modified silicone (general formula B) 14 14 14 (4) Ion-exchanged water 2 2 2 (5) Paraben proper amount proper amount proper amount (6) antioxidant proper amount proper amount proper amount (7) perfume proper amount proper amount Appropriate amount

Reference Example 1 Example 9 (1) Decamethylcyclopentasiloxane 78 58 (2) 1,3-butylene glycol 18 10 (3) Polyether-modified silicone (general formula B) 2 30 (4) Ion-exchanged water 2 2 (5) Paraben proper amount proper amount (6) Antioxidant proper amount proper amount (7) Perfume proper amount proper amount

[0060]                                               referenceAn exampleTwo  referenceAn exampleThree (1) Decamethylcyclopentasiloxane 25 79.8 (2) 1,3-butylene glycol 25 10 (3) Polyether-modified silicone (general formula B) 15 10 (4) Deionized water 35 0.2 (5) Paraben proper amount proper amount (6) Antioxidant Proper amount Proper amount (7) Perfume proper amount proper amount

[0061]                                                 Comparative Example 4 Comparative Example 5 (1) Decamethylcyclopentasiloxane 80 52 (2) 1,3-butylene glycol 3 32 (3) Polyether-modified silicone (general formula B) 15 14 (4) Ion exchange water 2 2 (5) Paraben proper amount proper amount (6) Antioxidant Proper amount Proper amount (7) Perfume proper amount proper amount

(General formula B)

[Chemical 12] The production methods of Examples 6 to 9, Reference Examples 1 to 3 and Comparative Examples 4 and 5 are as follows.

First, (1) to (3) and (5) to
After (7) was mixed and dissolved at room temperature, (4) was added to the mixture while stirring with a homomixer to cause gelation to obtain a gel cosmetic.

(Evaluation) Table 6 shows Examples 6 to 9, Reference Examples 1 to 3 and Comparative Examples 4 and 5.
2 shows the stability and usability (non-stickiness) of the gel in the open system and the closed system.

The stability was observed by appearance, and indicated as ○ Stable △ Slightly unstable × Unstable. Special panel 2 for non-stickiness
Sensory evaluation was conducted by 0 persons, and ⊚ 15 to 20 persons judged that the usability was good. ○ 10 to 14 people judged that the usability was good. △ 5 to 9 people judged that the usability was good. × 0 to 4 people judged that the usability was good. Indicates.

[0066]

[Table 6]

[0067] (Example 1 0) Hair Gel (1) Decamethylcyclopentasiloxane 74 (2) Dimethyl polysiloxane (6CS) 2 (3) Ethylene glycol 10 (4) Polyether modified silicone (Formula D) 10 (5 ) Deionized water 2 (6) Polyvinylpyrrolidone 2 (7) Glycerin proper amount (8) Paraben proper amount (9) Antioxidant proper amount (10) Perfume proper amount

(General formula D)

[Chemical 13]

(Production method) (1) to (3) and (6) to
After heating and mixing (10) at 80 ° C., the temperature was returned to room temperature, (4) was added, and the mixture was stirred and mixed by a homomixer. While stirring this with a homomixer, (5) was added and gelled to obtain a hair gel. The hair gel had a light spread and a moist feel, and was extremely excellent in stability over time.

Example 1 1 Moisture Gel (1) Decamethylcyclopentasiloxane 63 (2) Dimethylpolysiloxane (6CS) 2 (3) Sorbitol 5 (4) Polyether Modified Silicone (General Formula E) 10 (5 ) Ion-exchanged water 2 (6) 1,3-butylene glycol 10 (7) Polyethylene glycol 1500 8 (8) Paraben proper amount (9)) Antioxidant proper amount (10) Perfume proper amount

(General formula E)

[Chemical 14]

[0072] (Preparation method) to give Example 1 1 in the same manner as in Example 1 0. The moisture gel of the present invention spreads lightly on the skin, had a moist feel, and was extremely excellent in stability over time.

[0073]

EFFECT OF THE INVENTION The gel cosmetic of the present invention spreads lightly and has a moist feel, and is extremely excellent in stability over time not only in a closed system but also in an open system which has been difficult in the past. It was a thing.

[Brief description of drawings]

FIG. 1 is a graph showing the results of a viscosity stability test of Example 1.

FIG. 2 is a graph showing the results of a viscosity stability test of Example 2.

FIG. 3 is a graph showing the results of a viscosity stability test of Example 3.

FIG. 4 is a graph showing the results of a viscosity stability test of Example 4.

5 is a graph showing the results of a viscosity stability test of Comparative Example 1. FIG.

─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-5-311076 (JP, A) JP-A-5-310536 (JP, A) JP-A-3-44309 (JP, A) JP-A 61- 113646 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (3)

(57) [Claims] (1) One or more silicone oils
30-80% by weight , (2) 5-30% by weight of one or more polyether-modified silicones represented by the following general formula (A), and (3) 2-6% by weight of water. , (4) One or more polyhydric alcohol compounds
A gel cosmetic , comprising 5 to 30% by weight (excluding 5% by weight) . General formula (A): [However, wherein A is a methyl group, a phenyl group and the general _{formula: -C 3 H 6 O (C} 2 H 4 O) a (C 3 H 6 O) b R '( wherein, ^R'
Is a group selected from the group consisting of a hydrogen atom, an acyl group, and an alkyl group having 1 to 4 carbon atoms, and a is 5 to 5
It is an integer of 0 and b is an integer of 5 to 50. ) Is a group selected from the group consisting of polyoxyalkylene groups, and at least one of the three A's is a polyoxyalkylene group. R is a methyl group or a phenyl group, m is an integer of 50 to 1000, and n is 1 to
It is an integer of 40. ] 2. The gel cosmetic composition according to claim 1, wherein the silicone oil is cyclic dimethyl polysiloxane. 3. The gel cosmetic according to claim 1, wherein the polyhydric alcohol compound is a humectant.