JP3018091B2 - Oily external preparation - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an oily external preparation, and more particularly, to a medicinal component due to sweat or sebum, which has excellent water repellency and water resistance and also has oil resistance. The present invention relates to an oily external preparation obtained by gelling oily perfluoropolyether with diperfluoroalkylphosphoric acid, which makes it difficult for cosmetic components such as pigments and pigments to disappear and has an excellent feeling in use.

[Problems to be solved by conventional technology and invention]

Solid or semi-solid oily external preparations are widely used because they have excellent properties such as adhesion to the skin, covering power, and water resistance of the decorative film. Conventionally, this type of external preparation generally uses an oily base composed of a semi-solid oil or a liquid oil and a solid oil, or an oily base mixed with an oily gelling agent and then gelled. It is manufactured by mixing, dispersing, solidifying and molding powdery medicinal and cosmetic ingredients.

However, since these oily external preparations have a high oil content, those with softness and good spread have a very strong oily feeling, and those with a suppressed oily feeling have the drawback that the spread is heavy and uneven. There is also a problem that cosmetic ingredients such as medicinal ingredients and pigments easily disappear due to sebum.

Therefore, it has excellent usability and oil resistance,
There has been a demand for an oily external preparation in which the medicinal and cosmetic ingredients are less likely to disappear due to sebum.

[Means for solving the problem]

Under such circumstances, the present inventors have conducted intensive studies and as a result, when diperfluoroalkyl phosphoric acid was added to oily perfluoropolyether, it gelled, and when these were used, the feeling of use was excellent, and the medicinal component was obtained by sebum. The present inventors have found that an oily external preparation that hardly disappears and cosmetic components can be obtained, and completed the present invention.

That is, the present invention is characterized by containing the components (A) and (B) (A) 0.1 to 10% by weight of diperfluoroalkyl phosphoric acid (B) 10 to 99% by weight of oily perfluoropolyether. An oily external preparation is provided.

Examples of the diperfluoroalkyl phosphoric acid of the component (A) used in the present invention include those represented by the following general formula (I).

Wherein R ¹ and R ² represent a perfluoroalkyl group or a perfluorooxyalkyl group having 3 to 21 carbon atoms, and B ¹ and
B ² represents a divalent crosslinking group, and p represents 0 or 1,
m and q each represent an integer of 1 to 12.] In the general formula (I), the perfluoroalkyl group represented by R ¹ and R ² may be a linear, branched, cyclic, or a combination thereof. Things. Further, oxygen atoms may be inserted between carbon atoms, such as (CF ₃ ) ₂ CFOCF ₂ CF ₂ —. The divalent bridging group represented by B ¹ and B ^2, for example, _{-CO 2 -, - SO 2 -} ,
_{-O -, - (CH 2)} 3 -O -, - S -, - (CH 2) m -NR
^3- , -CO-NR ³ -or -SO ₂ -NR ^3- (where m is 1 to
And R ³ represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms). Of these, R ¹ , R ²
Is a perfluoroalkyl group having 1 to 20 carbon atoms;
A diperfluoroalkyl phosphoric acid in which p = 0 and m and q are 1 to 5 is preferred.

These diperfluoroalkyl phosphoric acids can be used alone or in combination of two or more.
To 10% by weight (hereinafter simply referred to as%), preferably 2 to 7%
%.

Examples of the oily perfluoropolyether as the component (B) include those represented by the following general formula (II).

Wherein R ¹ , R ³ , R ⁴ and R ⁵ may be the same or different,
Each of a fluorine atom, a perfluoroalkyl group or a perfluoroalkyloxy group, R ² represents a fluorine atom or a perfluoroalkyl group, and r, s and t have a molecular weight of 500 to 1
Indicates a number of 0 or more that becomes 00,000. Where r = s = t =
It cannot be zero. The perfluoro groups shown in parentheses need not be arranged in this order, and may be random polymerization or block polymerization. As the perfluoropolyether, a liquid having a viscosity of 5 to 5,000 cSt is particularly preferable. For example, the following general formula (III) (In the formula, x and y are numbers each having a molecular weight of 500 to 10,000, and x / y is 0.2 to 2.) FOMBLIN HC-04 (average molecular weight 1,500), and H
C-25 (the 3,200) and the HC-R (the 6,600) (more Montefurosu Co.) and the following general formula _{(IV) FCF 2 CF 2 CF} 2 O z CF 2 CF 3 (IV) ( in the formula, z represents a number from 4 to 500.) Demnum S-20 (weight average molecular weight 25,000)
0), S-65 (4,500), S-100 (5,600), and S-200 (8,400) (all manufactured by Daikin Industries, Ltd.) can be used.

These perfluoropolyethers have a total composition of 10 to
99%, preferably 10 to 60% is blended.

The external preparation of the present invention can contain an effective amount of a medicinal component and a cosmetic component in addition to the essential components. Such medicinal components include bactericides, antiperspirants, anti-inflammatory agents, and the like, and cosmetic components include inorganic or organic extenders or coloring pigments, ultraviolet absorbers, and the like.

Further, in addition to these components, the external preparation of the present invention may contain, if necessary, components used in ordinary external preparations, such as petrolatum, lanolin, ceresin, microcrystalline wax, carnauba wax, candelilla wax, higher fatty acids, Solid or semi-solid oils such as higher alcohols, dextrin fatty acid esters, sucrose fatty acid esters, and cholesterol derivatives; liquid oils such as squalane, liquid paraffin, ester oil, triglyceride, and silicone oil; humectants, nonionic surfactants, water, Preservatives, fragrances, sequestering agents and the like can be blended within a range that does not impair the effects of the present invention.

The oily external preparation of the present invention can be produced according to a usual method, and can be applied as an oily foundation, blusher, oily eye shadow, oily bacteriostatic cream, topical ointment and the like.

〔The invention's effect〕

The oily external preparation of the present invention has an excellent usability such as smooth and non-smooth spreading at the time of application, excellent water repellency and water resistance, and also has oil resistance, and is efficacious by sweat or sebum. A cosmetic component such as a component or a pigment is hardly lost, and the durability over time is good.

〔Example〕

 Next, the present invention will be further described with reference to examples.

Production Example 1 150 g of a pigment is placed in a round bottom flask (or kneader) and heated to 60 ° C. while mixing. In addition, (C ₆ F ₁₃ CH ₂ CH
_{2 O) 2 P (O)} OH13g isopropyl ether 1500g dissolved warmed (50 ° C.) to what had been added and mixed for 4 hours at 60 ° C.. Thereafter, isopropyl ether was distilled off under reduced pressure at 50 to 60 ° C. and dried to obtain 157 g of a fluorine compound-treated pigment.

Production Example 2 (C ₈ F ₁₇ CH ₂ CH ₂ O) ₂ P in a round bottom flask (or kneader)
(O) Add 17g of OH and 1500g of isopropyl alcohol, and add
The mixture was heated and melted to 150 ° C., and 150 g of the pigment was added thereto, followed by mixing at 60 ° C. for 4 hours. Thereafter, isopropyl alcohol was distilled off under reduced pressure at 50 to 60 ° C., and dried to obtain a fluorine compound-treated pigment 16.
1 g was obtained.

Example 1 Oily foundation: An oily foundation having the composition shown in Table 1 was produced,
Evaluations were made on stretchability, stickiness, makeup durability and stability. The results are shown in Table 2.

<Manufacturing method> After blending everything except the fragrance, stirring and mixing well, dissolve by heating (70 ° C to 100 ° C), then add the fragrance and mix again with stirring. This is filled in a metal dish and cooled to obtain an oily foundation.

<Evaluation method> Spread, sticky feeling, and long-lasting makeup: Sensory evaluation was conducted by 10 specialized panelists, and the results were shown according to the following criteria.

Good: 8 or more good △: Good for 4 to 7 good ×: Good for less than 4 Stability: The oily foundation after storage at 40 ° C for 1 month was evaluated.

○ ・ ・ ・ ・ No abnormalities such as oil floating and separation are observed × ・ ・ ・ ・ ・ No abnormalities such as oil floating and separation are observed As is evident from Table 2, the oily foundation of the present invention has a good feeling in use, is excellent in cosmetic durability and is stable by using a combination of perfluoropolyether and diperfluoroalkyl phosphoric acid. Met.

Example 2 Blush: In the same manner as in Example 1, blush was obtained.

(Ingredient) (% by weight) Dimethylpolysiloxane 3.2 Ditridecafluorooctylphosphoric acid (= p = 0, m = q = 2, R ¹ = R ² = C ₆ F ₁₃ ) in the general formula (I) 2.0 par Fluoropolyethers (FOMBLIN HC-04, manufactured by Montefros) 20.0 Sucrose fatty acid ester (Sugar wax A-10E, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.) 0.5 Rice starch 0.3 Red 202 No. 2.8 Blue 404 0.2 Silicon-treated pigment Talc 53.0 Kaolin 14.0 Titanium oxide 4.0 Fragrance trace amount Example 3 Oily eye shadow An oily eye shadow was obtained in the same manner as in Example 1.

(Ingredient) (% by weight) Octamethylcyclotetrasiloxane Remainder Perfluoropolyether (FOMBLIN HC-04, manufactured by Montefros) 45.0 Diheptadecafluorodecyl phosphoric acid (In general formula (I), = p = 0, m = Q = 2, R ¹ = R ² = C ₈ F ₁₇ ) 4.0 Microcrystalline wax 7.5 Dextrin fatty acid ester (Leopearl KL, manufactured by Chiba Flour Milling Co., Ltd.) 2.0 Fluorine compound-treated pigment (Production Example 1) Titanium mica 10.0 Talc 3.0 Mica 5.5 Iron oxide 10.0 Fragrance trace amount Example 4 Cream for oily bacteriostatic: In the same manner as in Example 1, a cream for oily bacteriostatic was obtained.

(Ingredient) (% by weight) Octamethylcyclosiloxane 15.0 Decamethylcyclosiloxane 15.0 Perfluoropolyether (FOMBLIN HC-04, manufactured by Montefros) 50.0 Diheptadecafluorodecyl phosphate (In the general formula (I), = p = 0, m = q = 2 , R 1 = R 2 = C 8 F 17) 4.0 water balance fungicides (Irgasan DP-300) 0.2 glycerin diisostearate 5.0 citric acid 0.5 sodium citrate 1.5 perfume trace performed The oily external preparations obtained in Examples 2 to 4 had a good feeling in use, excellent durability, and were stable.

Claims (1)

(57) [Claims] (1) An oily composition comprising: (A) and (B) 0.1 to 10% by weight of (A) diperfluoroalkyl phosphoric acid (B) 10 to 99% by weight of oily perfluoropolyether External preparation.