KR20030036817A - Personal care composition comprising hydrophobic gel - Google Patents

Abstract

A personal care composition has been disclosed that satisfies the need for a personal care composition with improved physical stability:

(a) (i) cholesteryl derivatives;

(ii) oil swelling clay materials;

(iii) nonvolatile liquid oils; And

(iv) polar solvents

From about 5% to about 35% by weight hydrophobic gel containing; And

(b) Substantially free of water, surfactants and lecithin.

Description

Personal care composition containing hydrophobic gel {PERSONAL CARE COMPOSITION COMPRISING HYDROPHOBIC GEL}

Lipsticks consist primarily of lipophilic or hydrophobic materials. Lipsticks designed to provide moisturizing benefits to the lips further include water, polar solvents, or other hydrophilic ingredients that are somewhat hydrophilic. The use of association structures has been proposed to retain such moisturizing ingredients within the lipophilic matrix of the lipstick. Although such lipstick compositions provide the lips with desirable moisturizing benefits, they have not been completely satisfactory in terms of physical stability, color stability and sweat resistance.

Physical stability relates to the stability of the stick during storage and use. For example, a stable stick will not deform when stored at ambient temperature and will not bend or break under normal conditions of use. Color stability relates to stability during storage and after application to the lips. It is known that lipsticks containing large amounts of moisturizing ingredients tend to change color over time after application to the lips. Sweating is a phenomenon that appears on the surface of the stick and is believed to be due to oil and / or solvent leaking out of the lipophilic matrix of the stick. Sweating gives the user a bad appearance.

Emulsion compositions in which cholesteryl derivatives and swelling clay materials are used are disclosed, for example, in Japanese Unexamined Patent Publication A-8-20529. Although such emulsions are believed to provide physical stability to the composition, further improvements are required.

Based on the above, there is a need for a lipstick composition that has improved physical stability, color stability and antiperspirant resistance, while also providing moisturizing benefits to the lips. There is also a need for a personal care composition having improved physical stability over a wide range of viscosity and / or hardness.

[summary]

The present invention relates to a personal care composition comprising the following, which satisfies the need for a personal care composition with improved physical stability:

(a) (i) cholesteryl derivatives;

(ii) oil swelling clay materials;

(iii) nonvolatile liquid oils; And

(iv) polar solvents

From about 5% to about 35% by weight hydrophobic gel containing; And

(b) a carrier substantially free of water, surfactants and lecithin.

The present invention also relates to a lipstick composition that satisfies the need for improved physical stability, improved color stability and improved sweat resistance while also providing moisturizing benefits to the lips.

The present invention also relates to a suitable method for preparing the composition.

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 present invention relates to a personal care composition containing a hydrophobic gel. The composition is particularly useful for preparing lipsticks, foundations and creams.

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

"Comprising" 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 references cited are incorporated by reference in their entirety. The mention of any reference is not an admission of any determination of its effectiveness as prior art to the claimed invention.

All ratios are by weight unless specifically stated otherwise.

The present invention is described in detail below in the product and method embodiments thereof.

Cholesteryl derivatives

The composition of the present invention contains a cholesteryl derivative having a high water holding ability. Cholesteryl derivatives useful in the present invention provide hydrophobic gels with oil swelling clay materials, nonvolatile liquid oils and polar solvents. Without being bound by theory, it is believed that cholesteryl derivatives possess polar solvents to provide stable gels.

The amount of cholesteryl derivative included is adjusted according to the amount of polar solvent. That is, when a large amount of polar solvent is required, a large amount of cholesteryl derivative is included to effectively retain the polar solvent. To provide a lipstick composition, the cholesteryl derivative is contained in about 2% to about 7% by weight, preferably about 3% to about 6% by weight of the total composition.

Cholesteryl derivatives useful in the present invention include cholesterol and C12-22 fatty acids or hydroxy fatty acids, preferably cholesteryl 12-hydroxystearate, cholesteryl macadamate, cholesteryl stearate and Mixtures thereof. Commercially available cholesteryl derivatives include cholesteryl 12-hydroxystearate under the trade name Salacos HS under Nisshin Oil Mills, Ltd. and cholesteryl macadamate under the trade name YOFCO MAC under Nippon Fine Chemical Co., Ltd.

Oil swelling clay material

The composition of the present invention contains an oil swelling clay material having a high oil swelling ability. Oil swelling clay materials useful in the present invention provide hydrophobic gels with cholesteryl derivatives, nonvolatile liquid oils and polar solvents. The oil swelling clay material is first swollen with a nonvolatile liquid oil prior to mixing with other ingredients to produce a hydrophobic gel. Without wishing to be bound by theory, it is believed that the oil swelling clay material further retains closely bound cholesteryl derivatives and polar solvents in its structure while absorbing the nonvolatile liquid oil.

Oil swelling clay materials act as thickeners for the composition. Thus, the amount of oil swelling clay material included is adjusted according to the desired viscosity and hardness of the composition. To provide the lipstick composition, the oil swelling clay material is contained from about 0.1% to about 1%, preferably from about 0.2% to about 0.5% by weight of the total composition.

Oil swelling clay materials useful in the present invention include hectorite, bentonite, montmorillonite and benton clay modified to be compatible with oil. Preferably the modification is quaternization with an ammonium compound. Preferred oil swelling clay materials include quaternary ammonium modified hectorite. Commercial oil swelling clay materials include Rheox. Benzyldimethyl stearyl ammonium hectorite of Bentone 38 CG OR Inc.

Non-volatile oil

The composition of the present invention contains a nonvolatile oil suitable for personal use. In order to provide a hydrophobic gel for the lipstick composition, the nonvolatile oil is contained in about 2% to about 10% by weight, preferably about 4% to about 7% by weight of the total composition.

Nonvolatile oils useful in the present invention may also be used in the carrier depending on the properties required for the product. In such a case, preferably, the nonvolatile oil to be used for preparing the hydrophobic gel is mixed independently with other components for preparing the hydrophobic gel. Thus, the nonvolatile oil to be used to make the carrier, if present, is mixed with other ingredients for making the carrier; The hydrophobic gel and the carrier are finally mixed together to make the composition of the present invention.

Nonvolatile oils useful in the present invention 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, diglyceryl sebacate, neopentyl glycol di (2-ethyl hexanoate), diisopropyl dimerate , Tocopherol, tocopherol acetate, avocado oil, camellia oil (camellia oil), turtle oil, macadamia Oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, malt oil, pasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, ferryl perillic oil, soybean oil, peanut oil, tea seed oil, kaya oil, rice bran oil, china paulownia oil, japanese paulownia oil, jojoba oil, rice germ oil, glycerol triocta Nate, 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 trade name Crodamol TN, Hexalan from Nisshin Oil Mills, Ltd. and tocopherol acetate from Eisai.

Nonvolatile oils useful in the present invention also include polyalkyl or polyaryl siloxanes of Formula (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 that blocks the end of the silicone chain. Alkyl or aryl groups (R ⁹³ ) substituted at the siloxane chain, or at the siloxane chain terminus Z ⁸ , are such that the resulting silicone remains fluid at room temperature, is dispersible, irritating and toxic or otherwise harmful when applied to the skin. And, as long as it is miscible with the other components of the composition and is chemically stable under normal use and storage conditions. 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 can be used include, for example, polydimethylsiloxane. Such silicone compounds are, for example, Viscasil from General Electric Company And SF 96 series, available from Dow Corning as Dow Corning 200 series.

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

Nonvolatile oils useful in the present invention are also 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.

Polar solvent

The composition of the present invention contains a polar solvent that is water soluble. Polar solvents provide moisturizing benefits to the skin. The polar solvent also acts as a solvent to include the water soluble humectant, which is otherwise miscible in the lipophilic carrier base. Without wishing to be bound by theory, it is believed that the polar solvent is retained in the cholesteryl derivative and also trapped in the oil swelling clay material, providing a stable hydrophobic gel.

To provide the lipstick composition, the polar solvent is contained in about 0.01% to about 10% by weight, preferably about 1% to about 8% by weight of the total composition.

Polar solvents useful in the present invention include polyhydric alcohols such as glycerin, 1,3-butylene glycol, propylene glycol, hexylene glycol, propane diol, ethylene glycol, diethylene glycol, dipropylene glycol, diglycerine, sorbitol and at ambient temperature Other sugars in liquid form. Water soluble alkoxylated nonionic polymers such as polyethylene glycol are also useful in the present invention.

Commercially available polar solvents include the following: 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; Sodium hyaluronate from Active Organics tradename ACTIMOIST; Intergen's AVIAN SODIUM HYALURONATE series; HYALURONIC ACID Na. By Ichimaru Pharcos.

Water soluble humectant

The composition of the present invention may also contain a water soluble humectant in an amount soluble in the polar solvent, preferably from about 0.1% to about 10%, more preferably from about 1% to about 5% by weight.

Water-soluble humectants useful in the present invention include niacinamide, panthenol, bacterial culture medium, allantoin, sodium lactate, PCA soda, amino acids, urea, sodium hyaluronate, chondroitin sulfate, collagen, elastin, pectin, carrageenan, sodium alginate, Trehalose, tubulos saccharides, chitin derivatives, chitosan derivatives and mixtures thereof. Niacinamide and panthenol, such as Roche, are commercially available.

Hydrophobic gel

When included in a lipophilic carrier, the hydrophobic gel can retain the polar and water soluble materials incorporated into the hydrophobic gel in a stable manner. By varying the level and type of carrier, it is possible to prepare compositions comprising hydrophobic gels and varying in viscosity and hardness, ranging from hard sticks to thin creams. Personal care compositions comprising hydrophobic gels provide improved physical stability, such as in phase state and viscosity. Without wishing to be bound by theory, it is believed that the hydrophobic gels in the present invention have excellent thermal stability and are therefore stable even in environments above ambient temperature.

Hydrophobic gels in the present invention are preferably prepared by a method comprising the following steps:

(a) a mixture of cholesteryl derivative, oil swelling clay material and non-volatile liquid oil is used at a speed of about 1500 rpm to about 3000 rpm, preferably about 1500 rpm to about 2500 rpm and about 80 ° C. to about 95 ° C. Preferably at a temperature of about 88 ° C to about 92 ° C; And

(b) the polar solvent with the mixture obtained in step (a) at least about 4000 rpm, preferably at a speed of about 4000 rpm to about 8000 rpm, more preferably from about 5000 rpm to about 7000 rpm and from about 85 ° C. to about 95 ° C. Preferably at a temperature of about 88 ° C to about 92 ° C.

Mixing can be performed with any high shear mixer known in the art, such as known as Homomixer or Disper. The hydrophobic gel of the present invention is preferably prepared in two steps, by mixing at a higher rotational speed than is typically used to prepare personal care compositions. Without wishing to be bound by theory, in step (a), the oil swelling clay material is adjusted to provide sufficient space for the polar solvent to be trapped in the cholesteryl hydroxystearate and subsequent oil swelling clay material. It is believed to mix at a given rotational speed, but not so intensely as to destroy the structure of the oil swelling clay material. Without being bound by theory, it is also believed that in step (b) the mixture of components is mixed at high rotational speeds so that the polar solvent is effectively trapped in the oil swelling clay material. It is believed to provide stability of the hydrophobic gel.

The hydrophobic gels thus obtained are then mixed with the carrier using conventional mixing means.

carrier

The composition of the present invention contains a carrier suitable for the desired use that is substantially free of water, surfactants and lecithin. Due to the substantial absence of such components, it is believed that hydrophobic gels provide physical stability, color stability and sweating stability to the composition. In addition, due to the substantially absence of surfactants, compositions gentle to the skin can be obtained. "Substantially free" means that no water, surfactant or lecithin is actively included in the composition. However, the present invention does not exclude the use of components that may contain traces of water, surfactants or lecithin as impurities or byproducts. For example, it is known in the art that the aforementioned polar solvents may comprise a small percentage of water. Such small amounts of water are acceptable for the compositions of the present invention. Typically, either water, surfactants or lecithin should be included at levels of less than about 1%, preferably less than about 0.5%, of the total composition, respectively.

Since substantially no water, surfactants or lecithin are included, the carriers of the compositions of the present invention are in fact lipophilic. Any component that is miscible with the hydrophobic gel can be used as the carrier. The carrier is selected to prepare a variety of personal care compositions including lipsticks, foundations, colored and uncolored creams for skin or hair, restriction sticks and hair sticks. Solid waxes, gelling agents, the aforementioned nonvolatile oils, powders, colored pigments and other lipophilic active ingredients can be incorporated into the carrier. The aforementioned nonvolatile oils can be included in the carrier. The nonvolatile oil used in the carrier may be the same or different from the nonvolatile oil used to prepare the hydrophobic gel.

To prepare lipsticks, foundations and creams, the carrier is selected from one or more solid waxes, nonvolatile oils, powders and colored pigments. The composition is particularly suitable for preparing a lipstick composition comprising a solid wax and a colored pigment in a carrier.

Solid wax

The composition of the present invention may comprise a solid wax. To provide the lipstick composition, the solid wax is contained in about 10% to about 20% by weight, preferably 12% to about 15% by weight of the total composition. The amount of solid wax is adjusted to give the product the desired hardness and strength.

Solid waxes useful in the present invention are paraffin wax, microcrystalline wax, ozokerite wax, ceresin wax, carnauba wax, candelilla wax, eicosanyl behenate and mixtures thereof. Mixtures of waxes are preferably used.

Commercially available solid waxes useful in the present invention include: Candelilla wax NC-1630 from Noda wax, ozokerite wax SP-1021 from Strahl & Pitsh and eicosanyl behenate from Cas Chemical.

Powder and Colored Pigments

The composition of the present invention may comprise a powder and a colored pigment. To provide the lipstick composition, the powder and colored pigment components are contained in about 1% to about 30% by weight, preferably 2% to about 20% by weight of the total composition. The amount and type of powder and colored pigments are selected according to the desired properties of the product, such as shade, coverage, UV protection benefits and various skin feels.

Materials useful in the present invention include clay mineral powders such as talc, mica, mica, silica, magnesium silicate, synthetic fluorophlogopite, calcium silicate, aluminum silicate, bentonite and montmorillonite; Pearl 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 titate, 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 nitride, fish Scales guanine, lake tar coloring dye and lake natural coloring dye.

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

Hydrophobic treated pigments may also be used. Such hydrophobicly treated pigments are prepared by treating the base material with a hydrophobic treatment agent, as described above: silicones such as methicone, dimethicone and perfluoroalkylsilane; Fatty substances such as stearic acid; Metal soaps such as aluminum dimyristate; Aluminum tallow glutamate, hydrogenated lecithin, lauroyl lysine, aluminum salts of perfluoroalkyl phosphates and mixtures thereof.

Additional ingredient

The compositions of the present invention may be selected by those skilled in the art, depending on the desired properties of the final product, and may include other additional ingredients suitable for making the composition more cosmetically or aesthetically acceptable or providing additional use advantages. have. Generally such additional ingredients are used individually at levels of up to about 5% by weight of the composition.

The composition of the present invention may further comprise nonvolatile dispersed silicone, usually referred to as 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. Silicone gums are believed to improve durability, such as long-lasting effects. The mass molecular weight of the "silicone gum" will typically be greater than about 200,000, generally from about 200,000 to about 1,000,000. Specific examples include polydimethylsiloxane, poly (dimethylsiloxane methylvinylsiloxane) copolymers, poly (dimethylsiloxane diphenylsiloxane methylvinylsiloxane) copolymers and mixtures thereof. Commercially available 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 through the incorporation of mono- or bi- or silanes and tri- and tetra-functional silanes during the preparation of the silicone resin. As is well understood in the art, the degree of crosslinking required to produce the silicone resin will vary depending upon the particular silane units incorporated in the silicone resin. In general, it is believed that silicone resins have a sufficient level of trifunctional and tetrafunctional siloxane monomer units and therefore have a sufficient level of crosslinking so that the silicone material is dried into a hard or rigid film. The ratio of oxygen atoms to silicon atoms indicates the level of crosslinking in certain silicon materials. Silicone materials having at least about 1.1 oxygen atoms per silicon atom will generally be silicone resins. 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, methyl substituted silanes This is most commonly used. Preferred are crosslinked silicone powders of Dow Corning under the trade names Trefil E-505C, Trefil E-506C and 9506 powder; 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 CTFA name polymethylsilsesquioxane sold by Tospearl ^™ from Toshiba Silicones.

Silicone materials and silicone resins may be conveniently identified according to the abbreviated nomenclature, in particular, known to those skilled in the art as the “MDTQ” nomenclature. Under this system, silicone is described according to the presence of the various siloxane monomer units that make up the silicone. Briefly, the symbol M represents a single functional unit (CH ₃ ) ₃ SiO _0.5 ; D represents a bifunctional unit (CH ₃ ) ₂ SiO; T represents a trifunctional 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 occurrence. Representative 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 the ratio indicated specifically with the total number of units of each type of units in silicon, or the symbolic subscript, or molecular weight, indicating the average thereof. The high relative molar amounts of T, Q, T 'and / or Q': D, D ', M and / or M' in the silicone resin indicate a high level of crosslinking. However, as discussed above, the overall degree of crosslinking can also be expressed in terms of oxygen to silicon ratio.

Preferred silicone resins used in the present invention 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, trimethylsiloxy silicates under the tradename BY11-018 by Dow Corning.

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

Other ingredients that may be formulated into the compositions of the present invention are as follows: preservatives such as benzyl alcohol, methyl parabens, propyl parabens, imidazolidinyl ureas, and EDTA and salts, perfumes, ultraviolet and infrared blockers and absorbers thereof, For example ethylhexyl methoxycinnamate and the like.

The following examples further describe and demonstrate preferred embodiments within the scope of the present invention. The examples are given for purposes of illustration only and should not be construed as limitations of the invention as many variations are possible without departing from the spirit and scope of the invention.

Example 1-5

Using the preparation method described in the text, the following makeup compositions were formed from the following components:

number ingredient Example 1 Example 2 Example 3 Example 4 Example 5 One Quaternium-18 hectorite * 1 0.2 0.2 0.2 0.2 0.3 2 Cholesteryl hydroxystearate * 2 3 6 5 5 3 Cholesteryl Macadamieate * 3 3 4 Phenyl Trimethicone * 4 5 5 7 5 Liquid Vaseline * 5 2 5 6 Niacinamide * 6 2 2 3.3 7 Urea * 7 2 8 Glycerin * 8 6 6 8 8 10 9 Ozokerite * 9 4 4 4 4 4 10 Microcrystalline Wax * 10 1.5 1.5 1.5 1.5 1.5 11 Candelilla Wax * 11 5 5 5 5 5 12 Paraffin * 12 3 3 3 3 2 13 Diglyceryl Sebacate / Isopalmitate * 13 22.3 22.3 22.3 22.3 14 Absorption improved lanolin * 14 2.5 2.5 2.5 2.5 2.5 15 Lanolin oil * 15 20 20 20 16 Trioctanoine * 16 7 7 7 16 20.2 17 Isotridecyl Iononanoate * 17 3 3 3 5 10 18 Ethylhexyl methoxycinnamate 3.5 19 Preservative 0.5 0.5 0.5 0.5 0.5 20 Powder pigment 15 15 15 20 30

Definition of ingredients

* 1 Quaternium-18 hectorite: Rheox. Bentone 38 of Inc.

* 2cholesteryl hydroxystearate: Salacos HS of Nisshin Oil Mills, Ltd.

* 3Cholesteryl Macadamieate: Yofco MAC from Nippon Fine Chemical

* 4Phenyl trimethicone: Silicone oil KF-56 from Shinetsu Silicone

* 5 Liquid Vaseline (Petrolatum): Liquid Vaseline from Witco Chemical

* 6 Niacinamide: niacinamide of Roche

* 7 Urea: Urea of Taisei Chemical

* 8 Glycerin: Glycerin USP from Asahi Denka

* 9Ozokerite: Ozokerite Wax SP-1021 from Strahl & Pitsh

* 10 Microcrystalline Wax: Witco Chemical's Multiwax 180-M Yellow

* 11 Candelilla Wax: Noda wax candelilla wax NC-1630

* 12 Paraffin: Sazole paraffin wax FT-150

* 13 Diglyceryl Sebacate / Isopalmitate: Salacos DGS-16 from Nisshin Oil Mills

14 Improved absorption lanolin: Crodalan SWL by Croda

* 15 Lanolin Oil: Croda Lanolin Oil

* 16 trioctanoin: Hexalan of Nisshin Oil Mills, Ltd.

17 isotridecyl isononanoate: Crodamol TN of Croda

Manufacturing method

The makeup compositions of Examples 1-5 were suitably prepared as follows: First, a mixture of components Nos. 1 to 5 was heated to disperse at a rate of 1500 rpm to 2500 rpm using a Homomixer at 90 ° C. in a closed tank. Separately, the mixture of Nos. 6 to 8 components was dissolved at 90 ° C. This solution (component numbers 6-8) was added to the dispersion (component numbers 1-5) and the mixture was further dispersed at a speed of 5000 rpm to 7000 rpm using a Homomixer to form a hydrophobic gel. Next, the components of Nos. 9 to 19 were heated to dissolve at 80 ° C. in a closed tank, and then the hydrophobic gel and the components of No. 20 were added, and the mixture was dispersed at 80 ° C. using a disperser to prepare a lipophilic dispersion. It was. The resulting dispersion was adjusted to a temperature of 80 ° C. Finally, the dispersion was filled into a vacuum vessel and allowed to cool to room temperature.

This embodiment shown in the above embodiment has many advantages. For example, Examples 1-3 provide lipsticks that provide improved lip softness, moisturizing and reduction of visible lip wrinkles. Example 4 provides a stick foundation. Example 5 provides a poured foundation. The foundations of Examples 4 and 5 provide for improved flexibility, moisturizing and reduction of visible wrinkles on the skin, in particular facial skin. The makeup compositions of Examples 1-5 further have improved stability with regard to physical hardness, color and antiperspirant resistance.

The embodiments and implementations described above are for illustrative purposes only and various modifications or changes will be suggested to those skilled in the art without departing from the spirit and scope.

Claims (6)

Personal Care Compositions Containing: (a) (i) cholesteryl derivatives; (ii) oil swelling clay materials; (iii) nonvolatile liquid oils; And (iv) polar solvents From about 5% to about 35% by weight hydrophobic gel containing; And (b) a carrier substantially free of water, surfactants and lecithin. Personal care compositions used as lipsticks, foundations or creams containing: (a) (i) cholesteryl derivatives; (ii) oil swelling clay materials; (iii) nonvolatile liquid oils; And (iv) polar solvents; From about 5% to about 35% by weight hydrophobic gel containing; And (b) a carrier substantially free of water, surfactants and lecithin and containing at least one solid wax and powder or colored pigment. The composition of claim 1 which is used as a lipstick containing: (a) from about 2% to about 7% cholesteryl derivative by weight; (ii) about 0.1% to about 1% by weight of oil swelling clay material; (iii) about 2% to about 10% by weight of nonvolatile liquid oil; And (iv) about 0.01% to about 10% by weight polar solvent; From about 10% to about 20% by weight hydrophobic gel, containing (% By weight based on total composition); And (b) a carrier substantially free of water, surfactants and lecithin and containing solid waxes and powders or colored pigments. 4. The lipstick composition of claim 3, further comprising a water soluble humectant in an amount soluble in the polar solvent. 5. The lipstick composition of claim 4, wherein the water soluble humectant is from about 1% to about 5% niacinamide, the polar solvent is glycerin, and the glycerin is contained in an amount of at least about three times niacinamide. A process for preparing the composition of claim 1 comprising the following steps: (a) mixing a mixture of cholesteryl derivative, oil swelling clay material and nonvolatile liquid oil at a speed of about 1500 rpm to about 3000 rpm and a temperature of about 85 ° C. to about 95 ° C .; (b) mixing the polar solvent with the mixture obtained in step (a) at a speed of at least about 4000 rpm and at a temperature of from about 85 ° C to about 92 ° C; (c) mixing the carrier with the mixture obtained in step (b).