JP3503015B2 - Base makeup - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base cosmetic composition, and more particularly to a water-in-oil base cosmetic composition which is excellent in water resistance and oil resistance, has good skin adhesion, and has a long lasting cosmetic effect.

[0002]

2. Description of the Related Art Base cosmetics have been required as bases for make-up cosmetics, such as controlling the skin color, improving the paste of makeup and improving the durability of the cosmetic effect. In order to control the skin color, the color pigments to be blended in the base cosmetics have been studied, and in order to improve the makeup paste and the durability of the makeup effect (makeup lasting), use oils and powders with good adhesion. Attempts have been made to blend them, and further to blend powders surface-treated with silicone compounds or Teflon compounds to improve water resistance and oil resistance.

[0003]

Regarding the control of the skin color, it has been found that the effect to a certain extent can be obtained by studying the colored pigments to be mixed in the base cosmetics. However, with regard to improving the paste of makeup and the durability of the makeup effect, those using an oily agent with good adhesiveness cause makeup deterioration over time due to sebum and sweat, and are not those that satisfy the durability of the makeup effect. There wasn't. In addition, no effect was obtained on the sustainability of the cosmetic effect even with the powder using the powder having good adhesion to the skin and makeup cosmetics. A product having a water resistance enhanced by blending a powder surface-treated with a silicone compound or a Teflon compound was not well adapted to the skin and was not excellent in the paste of makeup and the durability of the cosmetic effect.

[0004]

Means for Solving the Problems As a result of intensive studies conducted by the present inventors in view of these reasons, the inventors have found that an organic silicone resin, a partially crosslinked polyether-modified organopolysiloxane polymer, and an acrylic-silicone graft copolymer are used. The base cosmetics containing coalesced as an essential component are excellent in water resistance and oil resistance, and have good compatibility with makeup cosmetics and skin.
The present invention has been completed by finding that it is excellent in the paste on the skin and the durability of the cosmetic effect (makeup lasting). That is,
The invention following (A) ~ (C) ^{_{component; (A) R 1 3 SiO}} 1/2 units (wherein, R ¹ is or 1 to 6 carbon atoms
Hydrocarbon groups or phenyl groups) and SiO ₂ units
And the ratio of R ¹ ₃ SiO _1/2 units to SiO ₂ units is 0.5.
/ 1 to 1.5 / 1 in range of organic silicone resin (B) partially cross-linked polyether-modified organopolysiloxane polymer (C) acrylic-silicone graft copolymer The fee is provided.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The organosilicone resin as the component (A) used in the present invention comprises R ¹ ₃ SiO _1/2 units (provided that R 1 3
Is a hydrocarbon group having 1 to 6 carbon atoms or a phenyl group) and
It consists of SiO ₂ units, R ¹ ₃ SiO _1/2 units and SiO ₂ single
Organic ratio in the range of 0.5 / 1 to 1.5 / 1
It is a silicone resin. The organosilicone resin is obtained by hydrolyzing the corresponding known silanes. Examples of commercially available products include organic silicone resins dissolved in silicone oil, such as KF7312F and KF.
F7312J, KF7312K, KF9001, KF9
002, X-21-5249, X-21-5250 (above, manufactured by Shin-Etsu Chemical Co., Ltd.), DC593, BY11-
018 (above, manufactured by Toray Dow Corning Silicone Co., Ltd.), TSF4600 (Toshiba Silicone Co., Ltd.)
Manufactured) and the like.

The blending amount of the organic silicone resin as the component (A) of the present invention is not particularly limited, but is preferably in the range of 0.1 to 30% by weight (hereinafter, simply indicated by "%"). . Within this range, the effects of the present invention can be more significantly exhibited. Further, these organic silicone resins may be used alone or in combination of two or more, if necessary.

The partially crosslinked polyether-modified organopolysiloxane polymer of the component (B) used in the present invention is obtained by addition-polymerizing an organohydrogenpolysiloxane and a compound containing an aliphatic unsaturated group, Kaihei 4
Examples include those described in JP-A-272932 and JP-A-5-140320. The partially crosslinked polyether-modified organopolysiloxane polymer has the following general formula (1) R ² _a R ³ _b H _c SiO _{(4-abc) / 2} (1) (wherein R ² is the same or Different C1-C18 unsubstituted or substituted alkyl group, aryl group, aralkyl group or halogenated hydrocarbon group, R ³ is represented by the general formula C _n H _2n O (C
₂ H ₄ O) _d (C ₃ H ₆ O) _e R ⁴ [wherein R ⁴ is a hydrogen atom or a saturated aliphatic hydrocarbon group having 1 to 10 carbon atoms or-(C
O) -R ⁵ (R ⁵ is a group represented by a saturated aliphatic hydrocarbon group) having 1 to 5 carbon atoms, d is an integer of 2 to 200, e is 0 to 2
00 is an integer, d + e is an integer of 3 to 200, and n is 2 to 6, respectively.], A polyoxyalkylene group, a
Is 1.0 ≦ a ≦ 2.5, b is 0.001 ≦ b ≦ 1.0,
c represents 0.001 ≦ c ≦ 1.0} and / or the general formula (2) R ² _f H _g SiO ² _{(4-fg) / 2} (2) (In the formula, R ² is the same as above, f is 1.0 ≦ f ≦ 3.0,
g represents 0.001 ≦ g ≦ 1.5) and an organohydrogenpolysiloxane represented by the general formula (a) C _m H _2m-1 O (C ₂ H ₄ O) _h (C ₃ H ₆ O _{shown) i C m H 2m-1} ··· (a) ( wherein, h is an integer of 2 to 200, i is 0 to 200 integer, h + i is an integer of 3 to 200, m is 2-6, respectively ) And / or the general formula (b) R ² _j R ⁶ _k SiO _{(4-jk) / 2} (b) (wherein R ² is the same as above, R ⁶ is a terminal) A monovalent hydrocarbon group having 2 to 10 carbon atoms having an aliphatic unsaturated group, j is 1.0
≤ j ≤ 3.0, and k represents 0.001 ≤ k ≤ 1.5) in combination with an organopolysiloxane represented by the general formula (1) and / or the general formula (a).
It is a polymer having the component represented by as an essential component.

The amount of the partially crosslinked polyether-modified organopolysiloxane polymer as the component (B) of the present invention is not particularly limited, but is preferably 0.1 to 5%. Within this range, the effects of the present invention can be more significantly exhibited. Further, these partially crosslinked polyether-modified organopolysiloxane polymers may be used alone or in combination of two or more, if necessary.

The component (C) acryl-silicone graft copolymer used in the present invention is mainly composed of an organopolysiloxane compound having a radically polymerizable group at one end of its molecular chain and an acrylate and / or a methacrylate. Examples of radical polymers with radically polymerizable monomers include those described in JP-A-2-25411 and JP-A-2-132141. For example, an organopolysiloxane compound having radical polymerizability at one end of a molecular chain is represented by the following general formula (3)

[0010]

[Chemical 1]

R ⁷ : methyl group or hydrogen atom R ⁸ : carbon atom having a linear or branched carbon chain optionally blocked by one or two ether bonds 1 to
Examples thereof include those represented by 10 divalent saturated hydrocarbon groups R ⁹ : methyl group or butyl group 1: 3 to 300.

On the other hand, the radical polymerizable monomer mainly containing acrylate and / or methacrylate means a compound having one radical polymerizable unsaturated bond in the molecule,
As the acrylate and / or methacrylate used, alkyl (meth) acrylate such as methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl ( Examples thereof include hydroxyalkyl (meth) acrylates such as (meth) acrylate, 2-hydroxypropyl (meth) acrylate, and perfluoroalkyl (meth) acrylates having a fluorocarbon chain of 1 to 10. The copolymerization of the dimethylpolysiloxane compound (D) having a radically polymerizable group at one end of the molecular chain with the radically copolymerizable monomer (E) mainly containing acrylate and / or methacrylate has a polymerization ratio ((D) / (E)) in the range of 1/19 to 2/1 in the presence of a usual radical polymerization initiator such as benzoyl peroxide, lauroyl peroxide, and azobisisobutyronitrile. Any one of an emulsion polymerization method, a suspension polymerization method and a bulk polymerization method can be applied.

The blending amount of the acrylic-silicone copolymer as the component (C) of the present invention is not particularly limited, but is preferably 0.1 to 5%. When the blending amount is within this range, the effects of the present invention are more remarkably exhibited. Further, these acrylic-silicone graft copolymers may be used alone or in combination of two or more, if necessary.

The base cosmetic in the product of the present invention may be in the form of liquid, paste or semi-solid.

In addition to the above-mentioned essential components, the base cosmetics of the present invention include the components usually added to cosmetics such as oils, surfactants, powders, pigments, dyes, water-soluble polymers, and UV absorption. Agents, preservatives, fragrances and the like can be added within a range that does not impair the effects of the present invention.

[0016]

EXAMPLES The present invention will be described in more detail with reference to production examples, examples and comparative examples, but the present invention is not limited thereto. In the production examples, examples and comparative examples,% means% by weight.

Production Example 1: Average compositional formula (4) in a partially crosslinked polyether-modified organopolysiloxane polymer reaction vessel.

[0018]

[Chemical 2]

Organohydrogenpolysiloxane 100 g, ethanol 62 g, average composition formula C
H ₂ ═CHCH ₂ O (C ₂ H ₄ O) ₁₀ CH ₂ CH═CH ₂ 23.6 g of polyoxyalkylene and 0.3 g of an ethanol solution containing 3% chloroplatinic acid were charged, and the internal temperature was 70 to
After maintaining at 80 ° C. and stirring for 2 hours, the solvent was removed under reduced pressure to obtain a granular polymer.

[0020] Production Example 2: Acrylic Silicone Graft Copolymer The following composition formula (5)

[0021]

[Chemical 3]

40 g of dimethylpolysiloxane substituted with one end of methacrylate and 40 of methyl methacrylate
g, 2-ethyl-hexyl acrylate 10 g, n-butyl methacrylate 10 g, and toluene 100 g are mixed, and subsequently, azoisobutyronitrile 1.5 g is added and dissolved, and then the temperature range is 80 to 90 ° C. under stirring. The mixture was reacted for 5 hours to obtain a viscous solution. This solution was poured into 2 liters of methanol to precipitate the graft polymer. The precipitate was filtered off and dried to obtain a granular polymer.

Examples 1 to 7 and Comparative Examples 1 to 3 Water-in-oil type base emulsions having the compositions shown in Table 1 below were prepared by a conventional method, and (1) water resistance and (2) oil resistance of the base emulsions were prepared. ,
(3) The good spreadability was evaluated. or,
(4) Matching with foundation when applying makeup onto these base emulsions,
(5) The makeup durability was also evaluated. As the foundation, commercially available powder foundation, liquid foundation, and oil foundation were used. The evaluation results are shown in Table 2.

[0024]

[Table 1]

(Note 1) 50% solution of organic silicone resin in decamethylcyclopentasiloxane (Note 2) Obtained in Production Example 1 (Note 3) Obtained in Production Example 2

(Preparation Method) A. Components (1) to (11) are uniformly dissolved. B. Ingredients (12) and (13) are added to A and mixed uniformly. C. The component (14) was added to B and mixed uniformly to obtain a water-in-oil type base emulsion.

(Evaluation method) Female 10s in their twenties to thirties
Using 0 people as a panel, the evaluation items (1) to (5) were tested by the following methods, and the evaluation was performed according to the following criteria according to the ratio of the number of people who answered that they were good. (1) Water resistance: Examples 1 to 7 and Comparative Examples 1 to 3 on the forearm
Immediately and 2 hours later, the sample is exposed to running water. The water repellency of the coating film at that time was evaluated. (2) Oil resistance: Examples 1 to 7 and Comparative Examples 1 to 3 on the forearm
Immediately and 2 hours later, a small amount of squalane is dropped onto the application part. It was evaluated based on how the squalane spread when dropped. (3) Good spreadability: The samples of Examples 1 to 7 and Comparative Examples 1 to 3 were applied to the face, and the state when applied was evaluated. (4) Matching with foundation: Examples 1 to 7
And, the state of applying the foundation emulsion samples of Comparative Examples 1 to 3 and applying the foundation thereon (e.g., how to apply the foundation and the state of the coating film) was evaluated. (5) Makeup persistence: After the matching with the foundation was evaluated, the state of the makeup film (wrinkling, collapse, etc.) after 2 hours was evaluated.

(Evaluation criteria) Percentage of people who rated as good 70% or more: ◎ 40% or more and less than 70%: ○ 10% or more and less than 40%: △ Less than 10%: ×

[0029]

[Table 2]

As is clear from the results in Table 2, the water-in-oil type base emulsions of Examples 1 to 7 relating to the products of the present invention exhibited the effects of the present invention remarkably and were excellent in all evaluation items. there were.

[0031]

The base cosmetics of the present invention are water-in-oil type base cosmetics which are excellent in water resistance and oil resistance, have good skin adhesion, and have long-lasting cosmetic effects.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-8432 (JP, A) JP-A-8-319215 (JP, A) JP-A-10-45536 (JP, A) JP-A-8- 113513 (JP, A) JP, 9-25218 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (2)

(57) [Claims] 1. A next (A) ~ (C) ^{_{component; (A) R 1 3 SiO}} 1/2 units (wherein, R ¹ is or 1 to 6 carbon atoms
Hydrocarbon groups or phenyl groups) and SiO ₂ units
And the ratio of R ¹ ₃ SiO _1/2 units to SiO ₂ units is 0.5.
/ 1 to 1.5 / 1 in range of organic silicone resin (B) partially cross-linked polyether-modified organopolysiloxane polymer (C) acrylic-silicone graft copolymer Fee. 2. A component (A) of 0.1 to 30% by weight, (B)
The base cosmetic composition according to claim 1, which contains 0.1 to 5% by weight of the components and 0.1 to 5% by weight of the component (C).