KR100519203B1 - Water-in-oil emulsified make-up composition - Google Patents

Abstract

A water-in-oil emulsified makeup composition is disclosed, comprising: about 25% to about 40% by weight of volatile silicone oil; About 0.5% to about 8% by weight of nonvolatile oils; About 1% to about 5% by weight solid wax; About 1% to about 5% by weight lipophilic surfactant with less than about 8 HLB; About 25% to about 35% by weight of the hydrophobic treated pigment; And water in an amount such that the total amount of volatile silicone oil and water is at least about 50% by weight.

Description

Water-in-oil emulsified makeup composition {WATER-IN-OIL EMULSIFIED MAKE-UP COMPOSITION}

The present invention relates to a makeup composition having a water-in-oil emulsion phase type. In particular, the present invention relates to makeup compositions having certain levels of components that provide the benefits of both solid foundations and liquid foundations. The invention also relates to a makeup composition containing a water-soluble skin treatment agent such as niacinamide.

The foundation composition can be applied to the face and other parts of the body to even out skin tone and texture, and hide pores, blemishes, fine lines and the like. The foundation composition is also applied to moisturize the skin, control the sebum of the skin, and provide protection from the negative effects of light, wind and other environmental factors.

Foundation compositions are generally in the form of liquid or cream suspensions, emulsions, gels, compressed powders or anhydrous oils and wax compositions. It is suitable for providing a water supply effect with water and water-soluble skin treatments containing emulsion-type foundations in liquid form. However, such liquid form foundations are less convenient for consumers to use and transport. Solid foundations packed in compacts, on the other hand, are suitable for consumer use, but are typically less effective than liquid form foundations for moisturizing and covering the skin.

Foundation compositions in water-in-oil emulsions but in solid form have been proposed. Such emulsion solid foundations can be filled in a wide variety of packages, including compacts, and are growing in popularity among Asian consumers. References which disclose such foundation compositions are JPA 2-88511, 3-261707 and USP 5,362,482. While such emulsion solid foundations have somewhat successfully addressed the disadvantages of conventional liquid form foundations and solid foundations, further improvements are needed. For example, it is known that increasing the content of water and ingredients for moisturizing the skin can exacerbate the fresh, light hand to the skin. As another example, it is known that by increasing the components that provide smoothness and good spreadability upon application, the appearance on the skin can be powdery. In addition to the desired improvements, the foundation product must be stable for the typical storage period of such a foundation and be able to be manufactured at a reasonable cost.

Based on the above, there is a need for a makeup composition that is solid at room temperature, which provides good spreadability to the skin while providing improved moisturizing benefits to the skin and which gives the skin a fresh and light touch.

[summary]

The present invention provides water-in-oil emulsification containing the following, which satisfies the needs of a makeup composition that is solid at room temperature, providing good spreadability to the skin while providing moisturizing benefits to the skin, and giving a fresh and light touch to the skin. A makeup composition relates to:

(a) about 25% to about 40% by weight of volatile silicone oil;

(b) about 0.5% to about 8% by weight of nonvolatile oil;

(c) about 1% to about 5% by weight solid wax;

(d) about 1% to about 5% by weight lipophilic surfactant with an HLB of less than about 8;

(e) about 25% to about 35% by weight hydrophobic treated pigment; And

(f) water in an amount such that the total amount of volatile silicone oil and water is at least about 50% by weight.

These and other features, aspects, and advantages of the present invention will become apparent to those skilled in the art upon reading this specification and the appended claims.

The following lists the definitions of terms used in the text.

"Contains" means that other steps and other ingredients may be added that do not affect the final result. This term includes the terms "consisting of" and "consisting essentially of".

All percentages are by weight of the total composition unless specifically stated otherwise.

All cited references are hereby incorporated by reference in their entirety. No citation of any reference to its utility as a prior art to the invention for which a citation of any reference is claimed is made.

All ratios are by weight unless otherwise indicated.

In the product and method embodiments thereof, the present invention is described in detail as follows.

Volatile Silicone Oil

The composition of the present invention contains from about 25% to about 40%, preferably from 30% to about 40% by weight of the volatile silicone oil based on the total composition. The amount of volatile silicone oil is adjusted such that the total amount of volatile silicone oil and water is greater than about 50% of the total composition. Without wishing to be bound by theory, it is believed that the type and content of volatile silicone oils herein provide the skin with an improved refreshing and light touch without the need to leave a dry feeling on the skin.

Volatile silicone oils useful herein are selected from those having a boiling point of about 60 to about 260 ° C., preferably those having 2 to 7 silicon atoms.

Volatile silicone oils useful herein include polyalkyl or polyaryl siloxanes of the following structure:

^Wherein R ⁹³ is independently alkyl or aryl, p is an integer from about 0 to about 5, and Z ⁸ represents a group blocking the end of the silicone chain. Preferably, the R ⁹³ groups include methyl, ethyl, propyl, phenyl, methylphenyl and phenylmethyl and the Z ⁸ groups include hydroxy, methyl, methoxy, ethoxy, propoxy and aryloxy. More preferably, the R ⁹³ and Z ⁸ groups are methyl groups. Preferred volatile silicone compounds are hexamethyldisiloxane, octamethyltrisiloxane, decamethyltetrasiloxane, hexadecamethylheptasiloxane. Useful volatile silicone compounds on the market include octamethyltrisiloxane from Dow Corning under the tradename SH200C-1cs, decamethyltetrasiloxane under the trade name SH200C-1.5cs, and hexadecamethylheptasiloxane under the trade name SH200C-2cs.

Useful volatile silicone oils also include cyclic silicone compounds having the formula:

[Wherein, R ⁹³ is independently alkyl or aryl, n is an integer of 3 to 7;

Preferably, the R ⁹³ groups include methyl, ethyl, propyl, phenyl, methylphenyl and phenylmethyl. More preferably, the R ⁹³ group is a methyl group. Preferred volatile silicone compounds are octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, tetradecamethylcyclohexasiloxane. Useful volatile silicone compounds on the market include octamethylcyclotetrasiloxane from Dow Corning under the trade name SH244, decamethylcyclopentasiloxane under the trade names DC245 and SH245 and dodecamethylcyclohexasiloxane under the trade name DC246.

Non-volatile oil

The composition of the present invention contains from about 0.5% to about 8% by weight, preferably from 2% to about 5% by weight of the nonvolatile oil relative to the total composition. The amount of nonvolatile oils may include, but is not limited to, 1) the total of nonvolatile oils, solid waxes and lipophilic surfactants; 2) the ratio of the hydrophobic treated pigment is adjusted to be about 1: 7 to about 1: 1.5, preferably about 1: 5 to about 1: 2, more preferably about 1: 5 to about 1: 2.5. Without being bound by theory, it is believed that the type and content of nonvolatile oils herein provide smoothness to the skin and also mitigate the powdery appearance often found when pigments are included at high levels.

Nonvolatile oils useful herein include, for example, tridecyl isononanoate, isostearyl isostearate, isocetyl isostearate, isopropyl isostearate, isodecyl isononanoate, cetyl octanoate, Isononyl isononanoate, diisopropyl myristate, isocetyl myristate, isotridecyl myristate, isopropyl myristate, isostearyl palmitate, isocetyl palmitate, isodecyl palmitate, isopropyl palmitate Octyl palmitate, caprylic / capric triglyceride, glyceryl tri-2-ethylhexanoate, neopentyl glycol di (2-ethyl hexanoate), diisopropyl dimerate, tocopherol, tocopherol acetate, avocado Oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive Japanese rapeseed oil, egg yolk oil, sesame oil, persic oil, malt oil, pasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, peryllic perillic oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, china paulownia oil, japanese paulownia oil, jojoba oil, brown rice germ oil, glycerol Trioctanate, glycerol triisopalmitate, trimethylolpropane triisostearate, isopropyl myristate, glycerol tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, lanolin, liquid lanolin, Liquid paraffin, squalane, petrolatum, and mixtures thereof. Commercially available oils include, for example, tridecyl isononanoate from Croda brand name Crodamol TN, Hexalan from Nisshin Seiyu and tocopherol acetate from Eisai.

Useful nonvolatile oils also include polyalkyl or polyaryl siloxanes of the following structure (I):

^Wherein R ⁹³ is alkyl or aryl, p is an integer from about 7 to about 8,000, and Z ⁸ represents a group blocking the ends of the silicone chain. Alkyl or aryl groups substituted on the siloxane chains (R ⁹³ ), or at the ends of the siloxane chains (Z ⁸ ), are in which the resulting silicone remains fluid at room temperature, is dispersible, irritant or toxic when applied to the skin It may have any structure so long as it is not otherwise harmful and is miscible with the other ingredients of the composition and is chemically stable under normal conditions of use and storage. Suitable Z ⁸ groups include hydroxy, methyl, methoxy, ethoxy, propoxy and aryloxy. Two R ⁹³ groups on the silicon atom may represent the same group or different groups. Preferably, two R ⁹³ groups represent the same group. Suitable R ⁹³ groups include methyl, ethyl, propyl, phenyl, methylphenyl and phenylmethyl. Preferred silicone compounds are polydimethylsiloxanes, polydiethylsiloxanes and polymethylphenylsiloxanes. Particular preference is given to polydimethylsiloxanes, also known as dimethicones. Polyalkylsiloxanes that may be used include, for example, polydimethylsiloxanes. Such silicone compounds are, for example, Viscasil from General Electric Company And SF 96 series, sold by Dow Corning as Dow Corning 200 series.

Polyalkylaryl siloxane fluids may also be used, including, for example, polymethylphenylsiloxanes. Such siloxanes are sold, for example, as SF 1075 methyl phenyl fluid from General Electric Company, or 556 Cosmetic Grade Fluid from Dow Corning.

Also useful nonvolatile oils are mineral oils of various grades. Mineral oils are liquid mixtures of hydrocarbons obtained from petroleum. Specific examples of suitable hydrocarbons include paraffin oils, mineral oils, dodecane, isododecane, hexadecane, isohexadecane, eicosene, isoeicene, tridecane, tetradecane, polybutene, polyisobutene and mixtures thereof Included.

Particularly useful nonvolatile oils are those having a relatively low viscosity. Such low viscosity nonvolatile oils are believed to enhance fresh and light hand when the composition is applied to the skin.

Solid wax

The composition of the present invention contains from about 1% to about 5% by weight, preferably from 2% to about 4% by weight of the solid wax relative to the total composition. The amount of solid waxes may include 1) the total of nonvolatile oils, solid waxes and lipophilic surfactants; And 2) the ratio of the hydrophobically treated pigment is from about 1: 7 to about 1: 1.5, preferably from about 1: 5 to about 1: 2, more preferably from about 1: 5 to about 1: 2.5. Without being bound by theory, it is believed that the type and content of solid waxes provide consistency to the composition, provide coverage to the skin, but do not impair spreadability when applied to the skin, and give a fresh and light skin feel.

Useful solid waxes are paraffin wax, microcrystalline wax, ozokerite wax, ceresin wax, camauba wax, candelilla wax, eicosanyl behenate and mixtures thereof. Mixtures of waxes are preferably used.

Useful solid waxes on the market include: Candelilla wax NC-1630 from Noda wax, Ozokerite wax SP-1021 from Strahl & Pitsh, and Eicosanyl behenate from Cas Chemical.

Lipophilic surfactant

The composition of the present invention contains from about 1% to about 5%, preferably from 1% to about 3% by weight of lipophilic surfactant relative to the total composition. The HLB value of the lipophilic surfactant is less than about 8.

HLB values are theoretical exponential values describing the hydrophilic-hydrophobic balance of a particular compound. In general, the HLB index is recognized to range from 0 (strong hydrophobic) to 40 (strong hydrophilic). HLB values of lipophilic surfactants can be found in the tables and charts known in the prior art, or can be calculated by the following general formula: HLB = 7 + (hydrophobic group value) + (hydrophilic group value). HLB and HLB calculation methods of compounds are described in detail in "Surfactant Science Series, Vol. 1: Nonionic Surfactants", pp 606-13, M. J. Schick (Marcel Dekker Inc., New York, 1966).

The amount of lipophilic surfactant is 1) the total of nonvolatile oils, solid waxes and lipophilic surfactants; And 2) the ratio of the hydrophobically treated pigment is from about 1: 7 to about 1: 1.5, preferably from about 1: 5 to about 1: 2, more preferably from about 1: 5 to about 1: 2.5. Without being bound by theory, it is believed that the type and content of lipophilic surfactant provides a water-in-oil emulsion that is stable in view of the other components of the present invention.

The lipophilic surfactant may be an ester type surfactant. Useful ester type surfactants include: sorbitan monoisostearate, sorbitan diisostearate, sorbitan sesquiisostearate, sorbitan monooleate, sorbitan dioleate, sorbitan sesquioleate, glyceryl Monoisostearate, glyceryl diisostearate, glyceryl sesquiisostearate, glyceryl monooleate, glyceryl dioleate, glyceryl sesquioleate, diglyceryl diisostearate, diglyceryl Dioleate, diglycerin monoisostearyl ether, diglycerine diisostearyl ether, and mixtures thereof.

Commercially available ester-type surfactants are, for example, sorbitan isostearate under the trade name Crill 6 under the trade name and sorbitan sesquioleate under the trade name Arlacel 83 under the Kao Atras.

The lipophilic surfactant may be a silicone type surfactant. Useful silicone type surfactants are (i), (ii), and mixtures thereof, as shown below.

(i) dimethicone copolyols of the formula:

[Wherein x is an integer of 5 to 100, y is an integer of 1 to 50, a is 0 or more, b is 0 or more, and the average sum of a + b is 1-100].

(ii) dimethicone copolyols of the formula:

[Wherein R is selected from the group consisting of hydrogen, methyl and combinations thereof, m is an integer from 5 to 100, x is independently 0 or more, y is independently 1 or more, and x + y Sum is 1-100].

Commercially available silicone type surfactants are, for example, DC5225C, BY22-012, BY22-008, SH3746M, SH3771M, SH3772M, SH3773M, SH3775M, SH3748, SH3749 and DC5200 by Dow Corning.

In a preferred embodiment, the lipophilic surfactant is a mixture of one or more ester type surfactants and one or more silicone type surfactants to provide an emulsion that is stable against the other essential ingredients of the present invention.

Hydrophobized pigment

The composition of the present invention contains from about 25% to about 35% by weight, preferably from about 25% to about 30% by weight of the hydrophobic treated pigment. The amount of hydrophobically treated pigments can be determined by the following: 1) totally non-volatile oils, solid waxes and lipophilic surfactants; And 2) the ratio of the hydrophobically treated pigment is from about 1: 7 to about 1: 1.5, preferably from about 1: 5 to about 1: 2, more preferably from about 1: 5 to about 1: 2.5. Without wishing to be bound by theory, the type and content of hydrophobically treated pigments provide good wear performance and are stable in oily continuous phases and are believed to be stable in the composition.

Hydrophobicly treated pigments are selected according to the desired properties of the product, such as contrast, coverage, UV protection benefits and various skin feels.

Useful base materials for hydrophobically treated pigments include clay mineral powders such as talc, mica, sericite, silica, magnesium silicate, synthetic fluorophlogopite, calcium silicate, aluminum silicate, bentonite and montmorillonite; Pearlescent pigments such as alumina, barium sulfate, calcium secondary phosphate, calcium carbonate, titanium oxide, finely divided titanium oxide, zirconium oxide, zinc oxide, hydroxyapatite, iron oxide, iron tartate, ultramarine blue, Prussian blue, Chromium oxide, chromium hydroxide, cobalt oxide, cobalt titanate, titanium oxide coated mica; Organic powders such as polyester, polyethylene, polystyrene, methyl methacrylate resin, cellulose, 12-nylon, 6-nylon, styrene-acrylic acid copolymer, polypropylene, vinyl chloride polymer, tetrafluoroethylene polymer, boron knit Reed, fish scales guanine, laked tar color dyes and laked natural color dyes. Such base materials are treated with hydrophobic treatment agents, including: silicones such as Methicone, Dimethicone and perfluoroalkylsilanes; Fatty substances such as stearic acid; Metal soaps such as aluminum dimyristate; Aluminum hydrogenated tallow glutamate, hydrogenated lecithin, lauroyl lysine, perfluoroalkyl phosphate aluminum salts and mixtures thereof.

Certain percentages of spherical pigments can be used. In a preferred embodiment, the hydrophobic treated pigment is also selected according to the oil absorption capacity of the pigment. In a preferred embodiment, pigments with high oil absorption capacity and pigments with low oil absorption capacity are combined.

water

The composition of the present invention contains water in an amount such that the total amount of volatile silicone oil and water is in excess of about 50% of the total composition, preferably from about 15% to about 25% by weight of the total composition.

Without being bound by theory, it is believed that the type and content of water gives the skin an improved refreshing and light touch without leaving a feeling of dryness on the skin. This amount of water also allows for water-soluble skin treatments such as niacinamide to be included.

In the present invention, deionized water is typically used. Natural source water containing mineral cations may also be used depending on the properties of the desired product.

Skin Treatment

The composition of the present invention may further contain from about 0.1% to about 10%, preferably from about 1% to about 5% by weight of the skin treatment agent relative to the total composition. Useful skin treatment agents are niacinamide, panthenol and mixtures thereof. Niacinamide is particularly preferred in that it can reduce or alleviate the intensity of chronic rashes when used in a pharmaceutically effective amount. Niacinamide is suitably incorporated into the composition by first dissolving in water. Niacinamide and panthenol are commercially available, for example, from Roche.

Humectant

The composition of the present invention may further contain from about 1% to about 15% by weight, preferably from 2% to about 7% by weight of the wetting agent. Wetting agents are selected from the group consisting of polyhydric alcohols, water soluble alkoxylated nonionic polymers, and mixtures thereof. Useful polyhydric alcohols include glycerin, propylene glycol, 1,3-butylene glycol, dipropylene glycol, diglycerin, sodium hyaluronate and mixtures thereof.

Commercially available wetting agents include: glycerin from Asahi Denka; Propylene glycol under the trade name LEXOL PG-865 / 855 from Inolex, 1,2-PROPYLENE GLYCOL USP from BASF; 1,3-butylene glycol by Daisel Kagaku Kogyo; Dipropylene glycol of the same brand name of BASF; Diglycerin under the tradename DIGLYCEROL from Solvay GmbH; Active Organics brand name Sodium Hyaluronate from ACTIMOIST, AVIAN SODIUM HYALURONATE series from Intergen, HYALURONIC ACID Na. From Ichimaru Pharcos.

Additional ingredient

The composition of the present invention may be selected by a person skilled in the art according to the desired properties of the final product and may be suitable to make it cosmetically or aesthetically acceptable or include other additional ingredients to provide additional use benefits. Can be. Such additional ingredients are generally used individually at levels up to about 5% by weight of the composition.

The composition of the present invention may further comprise nonvolatile dispersed silicone, usually represented by a silicone gum. As used herein, the term “silicone gum” means a polyorganosiloxane material having a viscosity of at least 1,000,000 mPa · s at 25 ° C. Silicon gums are believed to provide durability improvements such as long-lasting effects. A "silicone gum" will typically have a mass molecular weight greater than about 200,000, generally from about 200,000 to about 1,000,000. Specific examples include polydimethylsiloxane, poly (dimethylsiloxane methylvinylsiloxane) copolymer, poly (dimethylsiloxane diphenylsiloxane methylvinylsiloxane) copolymer and mixtures thereof. Commercial silicone gums are described in the General Electric Silicone Rubber Product Data Sheets as SE 30, SE 33, SE 54 and SE 76.

The composition of the present invention may further comprise a silicone resin which is a polymeric siloxane system having a high degree of crosslinking. Silicone resins are believed to enhance spreadability and improve the feel to the skin. Crosslinking is introduced during the silicone resin preparation through incorporation of the 3-functional and 4-functional silanes with mono- or bi-functional silanes, or both. As is well understood in the prior art, the degree of crosslinking required to produce the silicone resin will vary depending on the particular silane unit incorporated into the silicone resin. In general, silicone materials with sufficient levels of trifunctional and tetrafunctional siloxane monomer units, and therefore with sufficient level of crosslinking, to be dried into rigid or hard films are considered silicone resins. The ratio of oxygen atoms to silicon atoms is indicative of the level of crosslinking in certain silicone materials. Silicone materials having at least about 1.1 oxygen atoms per silicon atom will generally be silicone resins here. Preferably, the ratio of oxygen: silicon atoms is at least about 1.2: 1.0. Silanes used in the preparation of silicone resins include monomethyl-, dimethyl-, trimethyl-, monophenyl-, diphenyl-, methylphenyl-, monovinyl-, and methylvinylchlorosilane and tetrachlorosilane, and methyl substituted Silane is most commonly used. Preferred are crosslinked silicone powders under the trade names Trefil E-505C, Trefil E-506C and 9506 Powder from Dow Corning; Suspensions of silicone elastomer powders under the trade names BY29-119 and BY29-122; And silicone compound emulsions under the trade names SH5500, SC5570 and SM 5571.

Other useful silicone resins are silicone resin powders such as the material of the CTFA name polymethylsilsequioxane sold by Tospearl ^™ from Toshiba Silicones.

Silicone materials and silicone resins may be conveniently identified, in particular according to the shorthand nomenclature system well known to those skilled in the art in the "MDTQ" nomenclature. Under this system, silicone is described according to the presence of various siloxane monomer units that make up the silicone. Briefly, the symbol M represents a 1-functional unit (CH ₃ ) ₃ SiO _0.5 ; D represents a 2-functional unit (CH ₃ ) ₂ SiO; T represents a 3-functional unit (CH ₃ ) SiO _1.5 ; Q represents a 5- or 4-functional unit SiO ₂ . Primes of unit symbols, for example M ', D', T 'and Q', represent substituents other than methyl and must be defined specifically for each case. Typical alternative substituents include groups such as vinyl, phenyl, amino, hydroxyl, and the like. The molar ratios of the various units complete the description of the silicone material under the MDTQ system, in a subscript to the symbol indicating the total number of units of each type in the silicon, or the ratio specifically indicated along with their average, or molecular weight. Among the silicone resins, higher relative molar amounts of T, Q, T 'and / or Q' relative to D, D ', M and / or M' indicate higher levels of crosslinking. However, as discussed above, the overall level of crosslinking may be expressed as the ratio of oxygen to silicon.

Silicone resins which are preferably used are MQ, MT, MTQ, MQ and MDTQ resins. Thus, the preferred silicone substituent is methyl. Especially preferred are MQ resins having an M: Q ratio of about 0.5: 1.0 to about 1.5: 1.0 and an average molecular weight of the resin of about 1000 to about 10,000. Commercially available MQ resins are, for example, Dow Corning's tradename BY11-018 trimethylsiloxy silicate.

The composition of the present invention may further comprise a water soluble polymer. It is believed that water-soluble polymers provide a long lasting effect. Useful water-soluble polymers include sodium carboxymethyl cellulose, polyvinyl pyrrolidone, polyvinyl alcohol, xanthan gum, agar, fulleran, bentonite and mixtures thereof. Commercially available water-soluble polymers include the Carbopol series by B. F. Goodrich Company, and G.A.F. Chemicals PVP K-30 is included.

Other ingredients that may be formulated with the compositions of the present invention are as follows; Preservatives such as benzyl alcohol, methyl paraben, propyl paraben, imidazolidinyl urea and EDTA and its salts, perfumes, ultraviolet and infrared blockers and absorbers, and others.

Furtherance

The compositions of the present invention can be prepared by methods well known in the art. In a suitable process, the composition is prepared in the following steps:

1) volatile silicone oils, nonvolatile oils, solid waxes, lipophilic surfactants and any other hydrophobic materials with high melting points are heated and dissolved to about 80-85 ° C. in a sealed tank to prepare a lipophilic mixture;

2) hydrophobically treated pigment is added to the lipophilic mixture and dispersed at about 75-80 ° C. with a homogenizer;

3) in water, separately from 1) and 2), heat and dissolve skin treatments, wetting agents and any other hydrophilic materials, if present, at about 75-80 ° C .;

4) emulsification by adding the product of step 2) to the product of step 3); And

5) The obtained emulsion is cooled to about 60-80 ° C.

The resulting composition, which is still fluid at this temperature, is filled in a closed container and allowed to cool to room temperature, typically using cooling units. The resulting composition is solid at room temperature and can therefore be poured into the container and left to solidify. Closed containers are typically in the form of a compact package.

The resulting composition preferably has a melting point of less than about 50 ° C. as measured by “General Tests, Melting Point Method 2” as described in “The Japanese Standard of Cosmetic Ingredients”. Without being bound by theory, it is believed that this relatively low melting point of the preferred embodiment compositions of the present invention provides improved spreadability and improved fresh, light hand to the skin. In another preferred embodiment, DSC thermal analysis of the composition of the present invention shows that relatively little enthalpy is required to melt the composition. Without being bound by theory, it is believed that such a small enthalpy would require less energy for the composition to be applied to the skin, thus contributing also to improved spreadability and improved fresh and light hand to the skin.

The following examples further describe and illustrate preferred embodiments within the scope of the present invention. The examples are given for illustrative purposes only and should not be construed as limitations of the invention, as various modifications may be made without departing from the spirit and scope of the invention.

Example 1-5

The following makeup composition was formed by the process described in the text:

number ingredient Example 1 Example 2 Example 3 Example 4 Example 5 One Cyclomethicone ^* 1 35.9 30.95 32.95 33.3 32.8 2 Tridecyl isononanoate ^* 2 2.0 2.0 2.0 2.0 2.0 3 Tocopherol Acetate ^* 3 0.5 0.5 0.5 0.5 4 Candelilla wax ^* 4 0.4 0.4 0.4 0.3 5 Ozokerite Wax ^* 5 2.2 2.8 2.8 2.8 2.0 6 Eicosanyl behenate ^* 6 0.4 0.4 0.4 2.5 7 Sorbitan isostearate ^* 7 2.0 2.0 2.0 1.0 1.0 8 Dimethicone Copolyol ^* 8 0.5 1.2 1.2 1.2 1.2 9 Crosslinked silicone powder ^* 9 2.0 10 Trimethylsiloxy silicate ^* 10 1.0 11 Hydrophobic Treated Pigment ^* 11 28.75 30.00 28.00 30.00 25.00 12 Deionized water 20 22 20 20 22 13 Niacinamide ^* 12 2.0 2.0 2.0 2.0 5.0 14 Panthenol ^* 13 0.25 0.25 0.25 0.5 15 Preservative 0.5 0.5 0.5 0.5 0.5 16 1,3-butylene glycol ^* 14 5.0 5.0 5.0 5.0 17 Glycerin ^* 15 5.0 18 Polyvinylpyrrolidone ^* 16 0.5

Definition of ingredients

^* 1 cyclomethicone: SH245 by Dow Corning

^* 2 tridecyl isononanoate: Crodamol TN of Croda

^* 3 Tocopheryl Acetate: DL-a-Tocopheryl Acetate by Eisai

^* 4 candelilla wax: Candelilla wax NC-1630 from Noda wax

^* 5 Ozokerite Wax: Strahl &Pitsh's Ozokerite wax SP-1021

^* 6 Eicosanyl Behenate: Eicosanyl Behenate from Cas Chemical

^* 7 sorbitan isostearate: Crill 6 by Croda

^* 8 dimethicone copolyol: DC5225C from Dow Corning

^* 9 crosslinked silicone powder: Torayfil E-506C from Dow Corning

^* 10 trimethylsiloxy silicate: BY11-018 by Dow Corning

^* 11 hydrophobic treated pigments:

ingredient level(%) ^* Oil absorption level (ml / g) Supply source Methicone treated titanium dioxide and talc 0-70 24.4 Miyoshi Kasei Meticone treated mica 15-85 58.5 Miyoshi Kasei Dimethicone and Stearic Acid Treated Micro Titanium Dioxide 0-25 23.0 Miyoshi Kasei Dimethicone Treated Silica 5-35 130.4 Miyoshi Kasei Meticone treated synthetic mica (synthetic fluorophlogopite) 0-35 - Topy kougyou Methicone Iron Oxide 0-70 - Daito Kasei ^* Oil absorption level test method: JIS K5101 No.21

^* 12 Niacinamide: Niacinamide of Roche

^* 13 Panthenol: DL-Panthenol of Roche

^* 14 1,3 Butylene Glycol: 1,3 Butylene Glycol by Daisel Kagakukougyou

^* 15 Glycerine: Glycerine USP by Asahi Denka

^* 16 polyvinylpyrrolidone: PVP K-30 from GAF Chemicals

Manufacturing method

The makeup compositions of Examples 1-5 were prepared as follows: The components of numbers 1 to 10 as indicated were dissolved by heating at 82 ° C. in a sealed tank, then the ingredients of number 11 were added and the mixture was 80 ° C. The lipophilic mixture was prepared by dispersing using a homogenizer at. Separately, a mixture of components 12-18 as shown was heated at 80 ° C. to dissolve and emulsified by addition to the lipophilic mixture. The obtained emulsion was adjusted to a temperature of 70 ° C. Finally, the emulsion was filled into a closed container and allowed to cool to room temperature using cooling units.

This embodiment shown in the above embodiment has many advantages. For example, they can provide improved moisturizing benefits to the skin, and also provide good spreadability to the skin and leave a fresh, light touch to the skin.

Claims (9)

A water-in-oil emulsified makeup composition comprising: (a) 25% to 40% by weight of volatile silicone oil; (b) 0.5% to 8% by weight of nonvolatile oils; (c) 2% to 4% by weight solid wax; (d) 1% to 5% by weight of lipophilic surfactant with an HLB of less than 8; (e) 25% to 35% hydrophobic treated pigment; And (f) Water in an amount such that the total amount of volatile silicone oil and water is at least 50% by weight. The water-in-oil emulsified makeup composition according to claim 1, further comprising 0.1 to 10% by weight of a skin treatment agent containing at least 0.1% by weight of niacinamide. The water-in-oil emulsified makeup composition according to claim 1 or 2, wherein the melting point of the composition is less than 50 ° C. The water-in-oil emulsified makeup composition according to claim 1 or 2, wherein the weight ratio of the total amount of the nonvolatile oil, the solid wax and the lipophilic surfactant to the amount of the hydrophobically treated pigment is 1: 7 to 1: 1.5. The nonvolatile oil according to claim 1 or 2, wherein the nonvolatile oil is tridecyl isononanoate, tridecyl isononanoate, isostearyl isostearate, isocetyl isostearate, isopropyl isostearate, isodecyl iso Nonanoate, cetyl octanoate, isononyl isononanoate, diisopropyl myristate, isocetyl myristate, isotridecyl myristate, isopropyl myristate, isostearyl palmitate, isocetyl palmitate, iso Decyl palmitate, isopropyl palmitate, octyl palmitate, caprylic / capric triglyceride, glyceryl tri-2-ethylhexanoate, neopentyl glycol di (2-ethyl hexanoate), diisopropyl A water-in-oil emulsified makeup composition selected from the group consisting of dimerates and mixtures thereof. The water-in-oil emulsified makeup composition according to claim 1 or 2, wherein the lipophilic surfactant is selected from the group consisting of ester type surfactants, silicone type surfactants, and mixtures thereof. The method of claim 6, wherein the ester type surfactant is sorbitan isostearate, sorbitan monoisostearate, sorbitan diisostearate, sorbitan sesquiisostearate, sorbitan monooleate, sorbitan dioleate Sorbitan sesquioleate, glyceryl monoisostearate, glyceryl diisostearate, glyceryl sesquiisostearate, glyceryl monooleate, glyceryl dioleate, glyceryl sesquioleate, di A water-in-oil emulsified makeup composition selected from the group consisting of glyceryl diisostearate, diglyceryl dioleate, diglycerin monoisostearyl ether, diglycerin diisostearyl ether, and mixtures thereof. The water-in-oil emulsified makeup composition according to claim 1 or 2, further comprising 1 to 15% by weight of a humectant. The water-in-oil emulsified makeup composition according to claim 1 or 2, comprising: (a) 30% to 40% by weight of volatile silicone oil; (b) 2% to 5% by weight of nonvolatile oils; (c) 2% to 4% by weight solid wax; (d) 1% to 3% lipophilic surfactant; (e) 25% to 30% by weight of the hydrophobic treated pigment (the amount of the total amount of the nonvolatile oil, the solid wax and the lipophilic surfactant: the amount of the hydrophobic treated pigment is from 1: 5 to 1: 2.5); (f) 15% to 25% water by weight; (g) 1 to 5 weight percent skin treatment agent; And (h) 2 to 7 weight percent wetting agent.