JP2010248101A - Lip cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lip cosmetic that persistently exhibits an excellent luster feeling, takes well on lips when used and is hardly broken. <P>SOLUTION: The lip cosmetic includes hydrocarbon waxes in an amount of 30-60 mass% in total of: (1) an ethylene-propylene copolymer; (2) an α-olefin oligomer; and (3) a poly(branched alkene). Preferably, the melting point of the ethylene-propylene copolymer is 80-150°C. Preferably, the content of the ethylene-propylene copolymer is 0.1-5 mass%. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cosmetic for lips in which the total content of the following hydrocarbon waxes is 30 to 60% by mass: 1) an ethylene propylene copolymer, 2) an α-olefin oligomer, and 3) poly The present invention relates to a cosmetic for lips containing a branched alkene, and more particularly relates to a cosmetic for lips that exhibits a continuous glossiness, has a good stickiness when applied to the lips, and does not break easily.

  Lip cosmetics are used to color the lips and change the impression of the face, 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.

  In particular, as a lip, there is a demand for improving the gloss, and a lip cosmetic that is excellent in gloss by combining a hydroxydicarboxylic acid and a branched alcohol having 20 to 30 carbon atoms has been reported ( For example, see Patent Document 5), there are cases where it is difficult to maintain the gloss depending on the type, content and combination of the powder, and there has been a demand for cosmetics for the lips that do not deteriorate the gloss for a long time.

  On the other hand, in order to achieve the optical effect such as gloss of the cosmetics for lips, it is necessary for the cosmetics to sufficiently adhere to the lips, and in addition, the lips that maintain the effect of the adhered cosmetics even when used for a long time There was a need for cosmetics. A certain amount of softness is necessary for the cosmetics to adhere, but it falls into the dilemma that softness tends to break during use and storage, and it has sufficient adhesion to the target site and has the difficulty to break. There was a need for cosmetics. Under such circumstances, there has been a demand for a cosmetic for the lips that is rich in gloss, has a sufficient adhesion, is not easily broken, and maintains the gloss of the cosmetic once adhered.

  Hydrocarbon waxes are widely used to adjust the hardness and smoothness of cosmetics for lips. In hydrocarbon waxes with a specific content, ethylene-propylene copolymers, α-olefin oligomers, and polybranched alkenes are used. Cosmetics for the lips that are rich in gloss, have good adhesion to the lips, have a sufficient amount of adhesion, and are hard to break, and maintain the gloss of the cosmetics once adhered. It was not known to be.

JP 2003-171233 A JP 09-301829 A JP 2008-255012 A JP 2008-214210 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 for the lips that has a continuous excellent gloss feeling, has a good stickiness during use, and does not break easily.

As a result of intensive research efforts in search of cosmetics for lips that are excellent in luster, good in use and hard to break, the total content of the following hydrocarbon waxes is 30 to 60% by mass. In a certain lip cosmetic, it is found that there is an effect on a lip cosmetic containing 1) an ethylene propylene copolymer, 2) an α-olefin oligomer, and 3) a polybranched alkene, and the invention is completed. It came to. That is, the present invention is as follows.
<1> In cosmetics for lips in which the total content of the hydrocarbon waxes shown below is 30 to 60% by mass, 1) an ethylene propylene copolymer, 2) an α-olefin oligomer, and 3) poly A cosmetic for lips characterized by containing a branched alkene.
<2> The cosmetic for lips according to <1>, wherein the ethylene-propylene copolymer has a melting point of 80 to 150 ° C.
<3> The cosmetic for lips according to <1> or <2>, wherein the content of the ethylene propylene copolymer is 0.1 to 5% by mass.
<4> The cosmetic for lips according to any one of <1> to <3>, wherein the α-olefin oligomer contains 5 to 40% by mass of a molecular weight of 300 to 600.
<5> The cosmetic for lips according to any one of <1> to <4>, wherein the polybranched alkene is polyisobutene having an average molecular weight of 30,000 to 60,000.
<6> The cosmetic for lips according to any one of <1> to <5>, wherein the content of the polybranched alkene is 1 to 20% by mass.
<7> The cosmetic for lips according to any one of <1> to <6>, further comprising 0.5 to 5% by mass of the following ester wax.
(Ester wax)
Owl, beeswax, carnauba wax, hydrogenated coconut oil, hydrogenated rapeseed oil, hydrogenated beef tallow <8> Further, titanium mica and / or titanium sericite which may be coated is contained in an amount of 0.5 to 10% by mass. The cosmetic for lips according to any one of claims 1 to 7, wherein the cosmetic is for lips.
<9> Hardness at constant temperature of 20 ° C. after manufacture is a penetration hardness value of 40 to 70 g (when 1.5 mmφ attachment is used and load is 200 g), and under the same conditions For lips according to any one of <1> to <8>, wherein the bending strength is 150 to 350 g (when a semicircular attachment having a diameter of 12 mm and a thickness of 5 mm is used and the load is 800 g). Cosmetics.

  ADVANTAGE OF THE INVENTION According to this invention, the cosmetics for lips which show the glossy feeling excellent continuously, are good at the time of use, and cannot be broken easily can be provided.

The present invention is characterized in that the following hydrocarbon wax is contained in an amount of 30 to 60% by mass based on the total amount of the cosmetic, and as such hydrocarbon wax, 1) an ethylene propylene copolymer, and 2) an α-olefin. It contains an oligomer and 3) a polybranched alkene.
<1> Ethylene-propylene copolymer of the present invention The lip cosmetic of the present invention is characterized by containing an ethylene-propylene copolymer as an essential component. Such an ethylene-propylene copolymer is not particularly limited as long as it is usually contained in cosmetics, but has a melting point of 80 from the viewpoint of appropriate hardness of the cosmetics, resistance to bending, and difficulty in melting at high temperatures in summer. The thing of the range of -150 degreeC is preferable, and the thing of 100-120 degreeC is more preferable. For example, Petrolite EP-700 (manufactured by Baker Petrolite) can be exemplified as a commercial product, and it can also be used in a mixed state with synthetic hydrocarbon wax. As a commercial product, Lip Wax PZ80-20 (Nippon Natural Products Co., Ltd.) (Made) can illustrate preferably. These are preferably contained in an amount of 0.05 to 10% by mass, more preferably 0.1 to 5% by mass, based on the entire cosmetic. This is because the effect is not exhibited below the lower limit, and the effect reaches a peak even when the upper limit is exceeded.
<2> α-Olefin Oligomer The lip cosmetic of the present invention is characterized by containing an α-olefin oligomer as an essential component. The α-olefin oligomer is not particularly limited as long as it is usually contained in cosmetics, but the α-olefin oligomer is hydrogenated after polymerizing a linear aliphatic α-olefin having 4 to 12 carbon atoms. And those having a degree of polymerization of 2 to 8 are preferred. The molecular weight is preferably 300 to 600. Such an α-olefin oligomer can be contained alone or in combination of two or more, and is 1 to 50% by mass, more preferably 5 to 40% by mass, based on the total amount of the cosmetic. Commercially available products can be used as the α-olefin oligomer, and examples include Nomucoat HPD-C or NEXBASE 2004FG (manufactured by Nisshin Oilio Group), SILFFLO364 (manufactured by LIPO CHEMICALS).
<3> 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 a polybranched alkene can contain only one species or a combination of two or more species, and is preferably contained in an amount of 0.1 to 30% by mass based on the total cosmetic. It is preferable that it is thru | or 20 mass%. If this is less than the lower limit, the effect is not exerted and the shape tends to collapse, and the cosmetics may not adhere to the lips in some cases. 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.
Furthermore, it is preferable that the ester-based wax contains molasses, beeswax, carnauba wax, hydrogenated coconut oil, hydrogenated rapeseed oil, hydrogenated beef tallow, which is used as a cosmetic, and has a good feeling of use and hardness. In order to make cosmetics, it is preferable to contain 0.5-5 mass% with respect to the whole cosmetics.

When used as a cosmetic for lips, it is required to have an appropriate hardness and be difficult to break, and as a cosmetic for lips of the present invention, the penetration hardness value when kept at a constant temperature at 20 ° C. after production Is preferably 40 to 70 g (when an attachment of 1.5 mmφ is used and the load is 200 g), and the bending strength is measured by the load value (unit: g) when folded from the center under the same conditions. The bending strength is preferably 150 to 350 g (when a semicircular attachment having a diameter of 12 mm and a thickness of 5 mm is used and the load is 800 g).

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, ibotarou lanolin, reduced lanolin, hard lanolin, jojoba oil, etc .; oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid , Higher fatty acids such as stearic acid, behenic acid, undecylenic acid; chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane; octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane Cyclic polysiloxane such as amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc. Oils such as oil; fatty acid soap (sodium laurate, sodium palmitate, etc., potassium lauryl sulfate), anionic surfactants such as alkyl sulfate triethanolamine ether; stearyltrimethylammonium chloride, benzalkonium chloride, laurylamine oxide Cationic surfactants such as: imidazoline-based amphoteric surfactants (2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine-based surfactants (alkyl betaines, amide betaines, Amphoteric surfactants such as sulfobetaine and acylmethyltaurine; sorbitan fatty acid esters (such as sorbitan monostearate and sorbitan sesquioleate), glycerin fatty acids (such as glyceryl monostearate), propiyl Lene glycol fatty acid esters (such as propylene glycol monostearate), hydrogenated castor oil derivatives, glycerin alkyl ether, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, POE sorbite fatty acid esters ( POE-sorbite monolaurate, etc.), POE glycerol fatty acid esters (POE-glycerol monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers POE2-octyldodecyl ether, etc. ), POE alkyl phenyl ethers (POE nonyl phenyl ether, etc.), Pluronic types, POE / POP alkyl ethers (POE / PO) 2-decyltetradecyl ether, etc.), Tetronics, POE castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), nonionic surfactants such as sucrose fatty acid esters, alkyl glucosides; polyethylene Glycolglycerin 1 3-butylene glycol, erythritol sorbitol xylitol maltitol propylene glycol, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexanediol, 1,2-hexanediol, 1,2 -Polyhydric alcohols such as octanediol; moisturizing ingredients such as sodium pyrrolidonecarboxylate, lactic acid, sodium lactate; red 202, red 228, red 226, yellow 4 and blue 404 which may be raked issue Yellow 5, red 505, red 230, red 223, orange 201, red 213, yellow 204, yellow 203, blue 1, green 201, purple 201, red 204, etc. Organic dyes: Organic powders such as polyethylene powder, polymethyl methacrylate, nylon powder, organopolysiloxane elastomers; paraaminobenzoic acid UV absorbers; anthranilic acid UV absorbers; salicylic acid UV absorbers; cinnamic acid UV absorber, collector; benzophenone UV absorber; sugar UV absorber; 2- (2'-hydroxy-5'-t-octylphenyl) benzotriazole, 4-methoxy-4'-t-butyldibenzoylmethane UV absorbers such as; lower alcohols such as ethanol and isopropanol; vitamin A or its derivatives, vitamin B Vitamin Bs such as hydrochloride, vitamin B tripalmitate, vitamin B2 dioctanoate, vitamin B12, vitamin B6 or derivatives thereof, vitamin B or derivatives thereof; α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate, etc. Preferred examples include vitamins such as vitamin E, vitamin D, vitamin H, pantothenic acid, panthetin, and pyrroloquinoline quinone; and antibacterial agents such as phenoxyethanol. The cosmetic of the present invention can be produced by treating these components according to a conventional method. Further, in order to improve the gloss, the surface may be coated as long as the effect is not reduced. Mica, talc, kaolin, mica, synthetic mica, calcium carbonate, magnesium carbonate, silicic anhydride (silica) It is preferable to contain powders such as aluminum oxide, barium sulfate, titanium mica and titanium sericite, and titanium mica and titanium sericite are particularly preferable. Preferred examples of the powder coating method include perfluoroalkyl treatment, hydrogenmethylpolysiloxane baking, dimethylpolysiloxane baking, metal soap coating, acylated amino acid salt coating, and the like.

  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 lip wax PZ80-20 with ceresin, Comparative Example 2 was obtained by replacing SILKFLO 364 with ceresin, and Comparative Example 3 was obtained by replacing polyisobutene with ceresin. Comparative Example 4 was obtained by increasing the content of polyisobutene to 40%, 1) ethylene propylene copolymer, 2) α-olefin oligomer, and 3) polybranched alkene hydrocarbon wax content of 60% by mass or more. Example 2 in which beeswax was replaced by ceresin, Example 3 in which titanium mica was replaced by mica, Example 4 in which titanium mica was replaced by titanium sericite, and Example 4 in which titanium mica was replaced by titanium mica treated with trimethoxysilyl dimethicone Was produced as Example 5.

<Test Example 1>
For Examples 1 to 5 and Comparative Examples 1 to 4, 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 artificial skin was placed on the artificial skin coated with cosmetics, adhered, and then peeled off. The cosmetic gloss value (G value) on the artificial skin immediately after the cosmetic application and after peeling with the artificial skin was measured with a gloss meter. When the time cosmetic was used, the reduction in glossiness due to the peeling of the cosmetic due to the movement of the lips was measured. The conditions were as follows: the incident angle of the light source was 45 ° and the specular reflection was 45 °.
From the results of Table 2, it is clear that the gloss value of the cosmetic of the present invention is higher than that of the comparative example, and the glossiness is improved, and Example 1 showed a higher value than Examples 2 to 3. Therefore, it is more glossy to contain beeswax and titanium mica, which are ester waxes, and the glossy feeling is sustained from the value after peeling, and Example 4 and Example 1 containing titanium sericite Since it showed the same glossiness and persistence of gloss, it was found that when titanium mica was included, the same effect as when titanium sericite was included was exhibited. Further, from the results of Examples 1 and 5, it was found that the same effect as that obtained when the coating was performed was obtained by blending the coated titanium mica.

<Test Example 2>
The cosmetics for lips of Examples 1 to 5 and Comparative Examples 1 to 4 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. In the present invention, the stickiness at the time of application during use was better than that of the comparative example.
Judgment is as follows: Grade 5: Very good for lips, Grade 4: Good for lips,
Score 3: Slightly good on lips, Score 2: Slightly poor on lips,
Score 1: Bad on lips

<Test Example 3>
After the lip cosmetics of Examples 1 to 5 and Comparative Examples 1 to 4 were manufactured, the lip cosmetics were measured and then left to stand at a constant temperature of 20 ° C. to measure the hardness of the cosmetics, and a card meter (Card Meter MAX ME500, I. The penetration hardness value was measured using techno Engineering. Measurement conditions were 1.5 mmφ attachment and the load was 200 g. In addition, at the same temperature, the bending strength was measured under the condition of a load of 800 g using a semicircular attachment having a diameter of 12 mm and a thickness of 5 mm using the same device. The results are shown in Table 4.
The cosmetics of the present invention had a penetration hardness value of 40 to 70 g, and the comparative examples were less than 30 g or more than 70 to 180 g. Moreover, the bending strength of the Example of this invention was 168-304g, and the comparative example was less than 120g or 370-480g. The softness that is easily applied to the lips and the bending strength that is considered to be difficult to break are 40 to 70 g of penetration hardness value and 150 g to 350 g of bending strength. Therefore, the comparative example is too hard or too soft. It was revealed that the cosmetics of No. 1 were in the range of firmness that was good and hard to break.

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

Claims (9)

In the cosmetics for lips in which the total content of hydrocarbon waxes shown below is 30 to 60% by mass, 1) an ethylene propylene copolymer, 2) an α-olefin oligomer, and 3) a polybranched alkene. Cosmetics for lips characterized by containing. The cosmetic for lips according to claim 1, wherein the ethylene-propylene copolymer has a melting point of 80 to 150 ° C. The cosmetic for lips according to claim 1 or 2, wherein the content of the ethylene propylene copolymer is 0.1 to 5% by mass. The cosmetic for lips according to any one of claims 1 to 3, wherein the α-olefin oligomer contains 5 to 40% by mass of a molecular weight of 300 to 600. The lip cosmetic according to any one of claims 1 to 4, wherein the polybranched alkene is polyisobutene having an average molecular weight of 30,000 to 60,000. The lip cosmetic according to any one of claims 1 to 5, wherein the content of the poly-branched alkene is 1 to 20% by mass. Furthermore, 0.5-5 mass% of ester waxes shown below are contained, Cosmetics for lips according to any one of claims 1-6.
(Ester wax)
Owl, beeswax, carnauba wax, hydrogenated coconut oil, hydrogenated rapeseed oil, hydrogenated beef tallow The cosmetic for lips according to any one of claims 1 to 7, further comprising 0.5 to 10% by mass of titanium mica and / or titanium sericite which may be coated. . The hardness when manufactured at a constant temperature of 20 ° C. after manufacture is a penetration hardness value of 40 to 70 g (when an attachment of 1.5 mmφ is used and the load is 200 g), and the bending strength under the same conditions is The cosmetic for lips according to any one of claims 1 to 8, wherein the cosmetic is 150 to 350 g (when a semicircular attachment having a diameter of 12 mm and a thickness of 5 mm is used and the load is 800 g). .