JP2010248102A - Lip cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic that is hardly removed and persistently exhibits a luster feeling. <P>SOLUTION: The lip cosmetic comprises a 10-30C branched alcohol and a poly(branched alkene). Preferably, the 10-30C branched alcohol is 2-decyltetradecanol. The poly(branched alkene) is preferably polyisobutene. The poly(branched alkene) particularly preferably has an average molecular weight of 30,000-60,000. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cosmetic for lips containing a branched alcohol having 10 to 30 carbon atoms and a polybranched alkene. More specifically, the cosmetic for lips is difficult to remove and continuously improves the gloss. It is about the fee.

  Lip cosmetics are used to color the lips and change the impression of the face. So-called lip and rouge are used, and stick-shaped lipsticks are widely used. Such lip cosmetics have various optical effects, and pearls are added to give a sparkling impression (for example, see Patent Document 1). Ultraviolet rays used when summer ultraviolet rays are high. Some of them have a high cutting effect (see, for example, Patent Document 2), and those having functional elements such as a three-dimensional effect and a UV cut are increasing from the mere improvement of aesthetics by color. In addition, those that provide a cosmetic for lips (for example, see Patent Document 3) that gives the lips a three-dimensional feeling such as a plump feeling by the glittering powder, and those that provide a moist feeling using an aqueous thickener and an aqueous dye ( For example, what has improved the impression of patent document 4) etc. is reported.

  On the other hand, for the problem that the lips are rough and the lipstick cannot be applied neatly when dried in winter, a method of combining a lipstick color effect and a moisturizing effect can be achieved by adding a specific composition to the moisturizing effect. Have been reported (for example, Patent Document 5). In addition to the moisturizing effect, as a cosmetic for lips that gives an optically moist impression, a lustrous feeling, and a glossy sensation, it contains a glittering powder (for example, patents) However, if a relatively large amount of such powder is not contained, the effect may not be exhibited, and the powdery feeling may be felt. Therefore, there has been a demand for a technique relating to cosmetics that exhibits a glossy feeling without increasing the amount of powder. Furthermore, with the increase in working women, there is an increasing need for cosmetics for the lips that can exhibit a glossy feeling for a long time.

  C10 to C30 branched alcohols are widely used in various cosmetics such as hair protecting agents and cleaning agents, and polybranched alkenes are used to adjust the feel and hardness of cosmetics, and the adhesive strength between cosmetics and skin. Is added for the purpose of improving the adhesion effect. Moreover, although the cosmetics for lips which were excellent in the glossiness by combining a hydroxy dicarboxylic acid and a C20-30 branched alcohol were reported (for example, refer patent document 7), the kind of pearl luster powder, There are cases where it is difficult to maintain the gloss depending on the content and the combination, and there has been a demand for a cosmetic for the lips in which the gloss is not continuously reduced.

  However, by adding such a branched alcohol having 10 to 30 carbon atoms to a polybranched alkene that is used as an adjustment of the hardness of cosmetics for lips and as an oil agent, the glossiness is improved, and no aggregation occurs in a smooth state. It was not known that a certain lip cosmetic could be prepared, and it was not known at all that it was difficult to remove the lip cosmetic for a long period of time, and exhibited a lustrous feeling continuously. .

JP 2003-171233 A JP 09-301829 A JP 2008-255012 A JP 2008-214210 A JP 2004-168759 A JP 2008-255012 A JP 2006-089411 A

  The present invention has been made under such circumstances, and it is an object of the present invention to provide a cosmetic that is difficult to remove for a long period of time and that continuously exhibits a feeling of gloss.

As a result of intensive research efforts to find a cosmetic for lips that is excellent in such a gloss and lasts its effect, the cosmetic for lips containing a branched alcohol having 10 to 30 carbon atoms and a polybranched alkene is required. It was found that there was an effect and completed the invention. That is, the present invention is as follows.
<1> A cosmetic for lips, comprising 1) a branched alcohol having 10 to 30 carbon atoms and 2) a polybranched alkene.
<2> The cosmetic for lips according to <1>, wherein the branched alcohol having 10 to 30 carbon atoms is 2-decyltetradecanol.
<3> The cosmetic for lips according to <1> or <2>, wherein the polybranched alkene is polyisobutene.
<4> The cosmetic material for lips according to any one of <1> to <3>, wherein the polybranched alkene has an average molecular weight of 30,000 to 60,000.
<5> The cosmetic for lips according to any one of <1> to <4>, further comprising an acrylic / silicone graft copolymer.
<6> The lip for lip according to any one of <1> to <5>, further comprising an ester of a branched fatty acid having 9 to 30 carbon atoms and a polyhydric alcohol having 4 or more hydroxyl groups. Cosmetics.
<7> The cosmetic for lips according to any one of <1> to <6>, further comprising a pearly luster powder that may be coated.

  ADVANTAGE OF THE INVENTION According to this invention, the cosmetics for lips which exhibit a glossy feeling for a long time can be provided.

<1> Branched alcohol of the present invention The lip cosmetic of the present invention contains a branched alcohol having 10 to 30 carbon atoms as an essential component. Such a branched alcohol is not particularly limited as long as it is usually contained in cosmetics. For example, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, and 2-decyltetradecanol are preferable. Of these, 2-decyltetradecanol is particularly preferred. These may contain only one species, or may contain two or more species in combination, preferably 0.1 to 20% by mass, more preferably 1 to 10% by mass based on the entire cosmetic. % Is preferred. This is because the effect is not exhibited below the lower limit, and even when the upper limit is exceeded, the effect reaches a peak, the sticky feeling is strong, and the feeling of use becomes poor.

<2> Poly branched alkene
The cosmetic for lips of the present invention is characterized by containing a polybranched alkene as an essential oil component. The polybranched alkene is not particularly limited as long as it is usually contained in cosmetics, but preferably has an average molecular weight of 30,000 to 60,000. Examples of the polybranched alkene include polyisobutene and polyisoprene. Preferable examples are polyisobutene. Such poly-branched alkenes can contain only one species or a combination of two or more species, preferably 0.1 to 20% by mass based on the total cosmetic, It is preferable that it is thru | or 10 mass%. If this is less than the lower limit, the effect is not exhibited and the shape tends to collapse. Moreover, even if it exceeds the upper limit, the effect reaches its peak, and the cosmetic becomes hard and may cause a problem in use.

Further, an acrylic / silicone copolymer is preferably contained, and the acrylic / silicone copolymer is preferably a graft copolymer, and particularly an acrylic acid (C10-30) alkyl ester / methacrylic acid. An acid dimethicone graft copolymer is preferred. Preferred examples of the acrylic / silicone-based graft copolymer include stearyl acrylate / dimethicone methacrylate graft copolymer and behenyl acrylate / methacrylic acid dimethicone graft copolymer. Commercially available products can be used as the acrylic / silicone graft copolymer, such as alkyl acrylate / dimethicone copolymers (KP-543, KP-545; manufactured by Shin-Etsu Chemical Co., Ltd.), acrylic acid / stearyl acrylate / methacrylic acid dimethicone. Examples thereof include copolymers (KP-561P; manufactured by Shin-Etsu Chemical Co., Ltd.), acrylic acid / behenyl acrylate / methacrylic acid dimethicone copolymer (KP-562P; manufactured by Shin-Etsu Chemical Co., Ltd.), and the like. These may contain only one species, or may contain two or more species in combination, preferably 0.1 to 10% by mass, more preferably 0.5 to It is preferably 5% by mass. This is because if the amount is less than the lower limit, the effect is not exerted, and if the amount is higher than the upper limit, the coating feeling is strong, the feeling of use is deteriorated, and the degree of freedom of the preparation is reduced.

Furthermore, it is preferable to contain an ester of a branched fatty acid having 10 to 30 carbon atoms and a polyhydric alcohol having 4 or more hydroxyl groups. As the branched fatty acid constituting such an ester, it can be used without particular limitation as long as it is a C9-30 branched fatty acid residue usually used in cosmetics. For example, 2-butylhexanoic acid, isostearic acid, Isopalmitic acid can be exemplified, and the fatty acid residue can be composed of only one species, or can be used as two or more types of mixed fatty acid residues, and mixed fatty acid residues are preferred. When used as a mixed acid, in addition to using the aforementioned branched fatty acids in combination, the aforementioned branched fatty acids and straight chain fatty acids can also be mixed. For example, a mixed fatty acid residue of isostearic acid and 12-hydroxystearic acid is preferred. It can be exemplified. Such fatty acids may have one or more hydroxyl groups. Such an ester having a fatty acid residue is an ester of a fatty acid and a polyhydric alcohol, and among the polyhydric alcohols usually used in cosmetics, those having 4 or more hydroxyl groups are preferred. An example is erythritol. Such an ester can be synthesized by a known esterification reaction between the polyhydric alcohol condensate and the fatty acid. Among these, a mixed fatty acid ester of a fatty acid residue and dipentaerythritol is particularly preferable, and such an ester is commercially available, and such a commercially available product can be purchased and used. As such a commercially available product, for example, “Cosmol 168EV” sold by Nisshin Oilio Co., Ltd. can be preferably exemplified.

In the skin external preparation of the present invention, in addition to such components, optional components usually used in cosmetics can be contained. Such optional ingredients include, for example, macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, hydrogenated coconut oil Oils such as oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, oils such as oleic acid, isostearic acid, lauric acid, Higher fatty acids such as behenic acid and undecylenic acid; chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane and diphenylpolysiloxane; octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethylcyclohexane Cyclic polysiloxanes such as Loxane; Oil agents such as silicone oils such as amino-modified polysiloxanes, polyether-modified polysiloxanes, alkyl-modified polysiloxanes, and modified polysiloxanes such as fluorine-modified polysiloxanes; fatty acid soaps (sodium laurate, palmitic acid) Anionic surfactants such as sodium sulfate, potassium lauryl sulfate), alkyl sulfate triethanolamine ether; cationic surfactants such as stearyltrimethylammonium chloride, benzalkonium chloride, laurylamine oxide; imidazoline-based amphoteric surfactants ( 2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaines, amide betaines, sulfobetaines, etc.) Amphoteric surfactants such as taurine; sorbitan fatty acid esters (such as sorbitan monostearate and sorbitan sesquioleate), glycerin fatty acids (such as glyceryl monostearate), propylene glycol fatty acid esters (such as propylene glycol monostearate) , Hardened castor oil derivatives, glycerin alkyl ether, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbite monolaurate, etc.), POE glycerin fatty acid ester (POE-glycerin monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ether POE2-octyldodecyl ether, etc.), POE alkyl phenyl ethers (POE nonyl phenyl ether, etc.), Pluronic types, POE / POP alkyl ethers (POE / POP2-decyl tetradecyl ether, etc.), Tetronics, POE Nonionic surfactants such as castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), sucrose fatty acid ester, alkyl glucoside; polyethylene glycol glycerin 13-butylene glycol, erythritol sorbitol xylitol maltitol propylene Glycol, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexanediol, 1,2-hexanediol, 1,2-octanediol Moisturizing ingredients such as sodium pyrrolidone carboxylate, lactic acid, sodium lactate; red 202, red 228, red 226, yellow 4, blue 404, yellow 5 which may be raked No., Red No. 505, Red No. 230, Red No. 223, Orange No. 201, Red No. 213, Yellow No. 204, Yellow No. 203, Blue No. 1, Green No. 201, Purple No. 201, Red No. 204, etc. Organic powders such as polyethylene powder, polymethyl methacrylate, nylon powder, and organopolysiloxane elastomer; paraaminobenzoic acid UV absorbers; anthranilic acid UV absorbers; salicylic acid UV absorbers; cinnamic acid UV absorbers Benzophenone ultraviolet absorbers; sugar ultraviolet absorbers; 2- (2'-hydroxy-5'-t-octylpheny ) UV absorbers such as benzotriazole and 4-methoxy-4′-t-butyldibenzoylmethane; lower alcohols such as ethanol and isopropanol; vitamin A or a derivative thereof, vitamin B hydrochloride, vitamin B tripalmitate, Vitamin B2 dioctanoate, vitamin B12, vitamin B6 or derivatives thereof, vitamin B such as vitamin B or derivatives thereof; vitamin E such as α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate, vitamin D, vitamin Preferred examples include vitamins such as H, pantothenic acid, panthetin, pyrroloquinoline quinone, and the like; and antibacterial agents such as phenoxyethanol. The cosmetic of the present invention can be produced by treating these components according to a conventional method. Furthermore, powders such as mica, talc, kaolin, mica, synthetic mica, calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate, etc., whose surface may be treated to improve gloss Inorganic pigments such as bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide, whose surface is preferably contained and the surface may be treated as long as the effect is not reduced. Kind: It is preferable to contain a pearly luster powder such as titanium mica, fish phosphorus foil, bismuth oxychloride, etc. whose surface may be treated, and the pearly luster powder may be coated. Examples of the powder coating treatment method include perfluoroalkyl treatment, hydrogen methylpolysiloxane baking treatment, dimethylpolysiloxane baking treatment, metal soap coating treatment, acylated amino acid salt coating treatment, and the like. It is particularly preferable to contain

  Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that the present invention is not limited to such examples.

<Examples and Comparative Examples>
A lip cosmetic 1 (Example 1) of the present invention was produced according to the formulation shown below. That is, the formulation components in Table 1 were heated to 105 ° C., uniformly dissolved and dispersed, poured into a mold at 90 ° C., and rapidly cooled to 20 ° C. to obtain a lip color of Example 1.
Further, in the same manner as in Example 1, Comparative Example 1 was obtained by replacing 2-decyltetradecanol with behenyl alcohol, Comparative Example 2 was obtained by replacing polyisobutene with ceresin, and Silicone KP561-P was replaced with cetyl SN-1. Example 4 was prepared as Example 4 in which Cosmol 168EV was substituted with cetyl SN-1, Example 3, dimethylpolysiloxane-treated mica titanium, and trimethoxycaprylsilane-treated red No. 201 were substituted with talc.

<Test Example 1>
For Examples 1 to 4 and Comparative Examples 1 and 2, using commercially available artificial skin (supplera, manufactured by Idemitsu Techno Fine Co., Ltd.), 40 mg of cosmetic material was applied to a 2 cm × 4 cm region, and prepared separately immediately after application. The above artificial skin was placed on the artificial skin coated with cosmetics, peeled off, and peeled off. The cosmetic gloss value (G value) on the artificial skin immediately after applying the cosmetic and after peeling off with the artificial skin was measured with a gloss meter. When the cosmetic was used for a long time, the reduction in glossiness due to the peeling of the cosmetic due to the movement of the lips was measured. Specifically, the incident angle of the light source is set to 45 °, and the results of measurement at regular reflection 45 ° are shown in Table 2.
From the results of Table 2, it is clear that the gloss value of the cosmetic of the present invention has a gloss value higher than that of the comparative example and improved gloss, and Example 1 is higher than Examples 2 to 4. Since the value was shown, the glossiness was higher and the glossiness was longer when the acrylic / silicone graft copolymer silicone KP561-P was contained, and a mixed acid of isostearic acid and 12-hydroxystearic acid It was also clarified that the inclusion of Cosmol 168EV, which is a dipentaerythritol ester, improved glossiness and reduced the glossiness due to contact. Further, from the comparison between Examples 1 and 4, the pearly luster powder was added to improve the glossiness and suppress the reduction of glossiness due to contact.

<Test Example 2>
The cosmetics for lips of Examples 1 to 4 and Comparative Examples 1 and 2 were applied to the lips of five female subjects, and the usability during use was determined according to the following criteria. The results are shown in Table 3. The cosmetic of the present invention has a longer extension during use than the comparative example, and Example 1 has a better usability than Examples 2-4.
Judgment is as follows: grade 5: very good, grade 4: good spread, grade 3: slightly good spread, grade 2: slightly bad spread, grade 1: poor spread, grade 0: very poor spread

The present invention can be applied to cosmetics such as lip cosmetics.

Claims (7)

A cosmetic for lips, comprising 1) a branched alcohol having 10 to 30 carbon atoms and 2) a polybranched alkene. The lip cosmetic according to claim 1, wherein the branched alcohol having 10 to 30 carbon atoms is 2-decyltetradecanol. The lip cosmetic according to claim 1 or 2, wherein the polybranched alkene is polyisobutene. The average molecular weight of the polybranched alkene is 30,000 to 60,000, and the cosmetic for lips according to any one of claims 1 to 3. The lip cosmetic according to any one of claims 1 to 4, further comprising an acrylic / silicone graft copolymer. The cosmetic for lips according to any one of claims 1 to 5, further comprising an ester of a branched fatty acid having 9 to 30 carbon atoms and a polyhydric alcohol having 4 or more hydroxyl groups. Furthermore, the cosmetics for lips of any one of Claims 1-6 containing the pearl luster powder which may be coat | covered.