JP2017100986A - Composition suitable for cosmetic use - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oily composition, preferably a cosmetic composition and more preferably a cleansing composition, in which the viscosity of the composition is increased by one or a plurality of waxes while providing an excellent texture capable of providing easiness of distribution of a predetermined amount of the composition, easiness of application and uniformity.SOLUTION: There are provided a composition, preferably a cosmetic composition and more preferably a cleansing composition which comprise: (a) at least one oil; (b) at least one wax; (c) at least one, optionally hydrogenated, block copolymer of styrene and at least one olefin; and (d) at least one nonionic surfactant. The composition can have good stability, creaminess, easiness of distribution of the predetermined amount, easiness of application and an ability to be washed off. Therefore, the composition is suitable for especially cleansing makeup from keratin materials such as the skin.SELECTED DRAWING: None

Description

  The present invention relates to a composition, preferably a cosmetic composition, more preferably a cleansing composition, for keratinous substances such as skin.

  Skin cleansing is very important for facial care. Fatty residue such as excess sebum, residue of cosmetics used daily, and makeup products, especially water-resistant products, can accumulate on skin folds and block skin pores The skin cleansing must be as efficient as possible, since the resulting stains appear.

  As cleansing products, for example, rinsable liquid oil products are known to be efficient in cleansing and makeup removal.

  Washable liquid oil products are cleansing because of the oil present in these formulations. These oils allow, for example, dissolution of fatty residues and dispersion of pigments in makeup products. Liquid oil products that can be washed away are efficient and well tolerated. Washable liquid oil products are highly accepted by consumers due to good removal effects and skin finish.

  However, since fluidity and dripping are not welcomed by consumers, washable liquid oil products are often unpopular.

  To solve the above problems, one or more oily thickeners can be added to a liquid oil product formulation that can be washed away to increase oil viscosity and avoid dripping.

US Patent Application Publication No. 2002/005 562 U.S. Pat.No. 5,221,534 US Patent Application No. 5463633 U.S. Patent Application Publication No. 5411744

Walter Noll's Chemistry and Technology of Silicones (1968), Academic Press Cosmetics and Toiletries, 91, January 1976, 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics "The HLB system. A time-saving guide to emulsifier selection" (ICI Americas Inc., published in 1984) `` Handbook of Surfactants '' by M.R.Porter, Blackie & Son publishers (Glasgow and London), 1991, 116-178

  One or more waxes can be used as the oil-based thickener. For example, one or more waxes can be added to an oil or mixture of oils at elevated temperatures to thicken or cure the product at room temperature. For example, in the field of makeup remover that can be washed away, the use of one or more waxes can effectively remove makeup while having good slipperiness and no dripping after application. Has been adopted to prepare a cleansing balm that is welcomed because it can.

  However, in some cases, the hard texture of the product caused by the presence of one or more waxes tends to cause one part of the product to move with the other part, so one or more waxes The user of the product containing it was difficult to dispense a predetermined amount of product from the container containing the product. The texture of such a product can be similar to the texture of a “gelato” or Italian ice cream, including a relatively large amount of water ice. Therefore, when you try to remove a part of the product from the container with your finger, not only the part that touches with your finger, but also the other part is also removed together, in which case more product than you expected is removed from the container. There is a tendency to be.

  Furthermore, products containing one or more waxes, for example, are difficult to apply to the skin and tend to lose uniformity. For example, the product can contain particles or fragments, such as lumps, which can be different from other parts in the product and therefore cannot provide a smooth feel to the touch.

  Accordingly, it has been difficult to thicken a liquid oil product containing one or more waxes while providing ease of dispensing a given amount of product, ease of application, and uniformity.

  One object of the present invention is an oily composition, preferably a cosmetic composition, more preferably a cleansing composition, which facilitates the dispensing of a predetermined amount of the composition, ease of application and uniformity. It is to provide a composition in which the viscosity of the composition is increased with one or more waxes while providing an excellent texture that can result in

The above purpose is
(a) at least one oil;
(b) at least one wax;
(c) at least one block copolymer of styrene and at least one olefin, optionally hydrogenated, and
(d) at least one nonionic surfactant;
Can be achieved by a composition, preferably a cosmetic composition, more preferably a cleansing composition.

  (a) The oil is from the group consisting of oils of vegetable or animal origin, synthetic oils, silicone oils, hydrocarbon oils and fatty alcohols, preferably from synthetic oils, hydrocarbon oils and mixtures thereof, more preferably esters. It can be selected from oils, hydrocarbon oils, and mixtures thereof.

  The amount of (a) oil in the composition can be 20 to 90% by weight, preferably 30 to 85% by weight, more preferably 40 to 80% by weight, based on the total weight of the composition.

  (b) The wax is preferably selected from synthetic waxes, preferably synthetic waxes having a melting point of 30 ° C. or higher, more preferably 40 ° C. or higher, and even more preferably 50 ° C. or higher.

  The amount of the (b) wax in the composition may be 0.5 to 10% by mass, preferably 1 to 7% by mass, more preferably 1 to 5% by mass, based on the total mass of the composition.

  (c) The block copolymer can comprise at least one styrene block and at least one block comprising units selected from butadiene, ethylene, propylene, butylene and isoprene or mixtures thereof.

(c) block copolymer may contain at least one styrene block and at least one ethylene / C ₃ -C ₄ alkylene blocks.

  (c) Block copolymers are styrene-ethylene / butylene-styrene triblock copolymer, styrene-ethylene / butylene block copolymer, styrene-ethylene / isoprene-styrene triblock copolymer, styrene / ethylene-propylene diblock copolymer, styrene-ethylene. Can be selected from the group consisting of / isoprene diblock copolymers and mixtures thereof.

  (c) The block copolymer is preferably selected from the group consisting of a styrene-ethylene / butylene diblock copolymer, a styrene / ethylene-propylene diblock copolymer, a styrene-ethylene / isoprene diblock copolymer and mixtures thereof.

  The amount of the block copolymer (c) in the composition can be 0.5-30% by weight, preferably 1-20% by weight, more preferably 2-10% by weight, based on the total weight of the composition.

  (d) the nonionic surfactant has an HLB value of 8 to 14, and is preferably selected from oxyalkylenated glycerol esters, sorbitan oxyalkylenated fatty acid esters, and mixtures thereof It is preferable.

  The amount of the (d) nonionic surfactant in the composition can be 5 to 25% by mass, preferably 7 to 20% by mass, more preferably 8 to 16% by mass, based on the total mass of the composition.

  The composition according to the present invention is preferably a component other than (a) oil or (b) wax, preferably having a melting point of 30 ° C. or higher, more preferably 6% by weight or less based on the total weight of the composition (e). Preferably it further comprises at least one triglyceride.

  The composition according to the invention is preferably a cosmetic composition, preferably a cleansing composition, more preferably a makeup remover.

The present invention is also a cosmetic method, preferably a cleansing method, for keratin substances such as skin,
Applying a composition according to the invention;
Optionally rinsing the keratin material,
Relates to a method comprising:

  As a result of intensive studies, the present inventors have found that an oily composition, preferably a cosmetic composition, more preferably a cleansing composition, which is easy to dispense a predetermined amount of composition, easy to apply and It has been discovered that it is possible to provide compositions in which the viscosity of the composition is increased with one or more waxes while providing an excellent texture that can provide uniformity.

Therefore, the composition according to the invention is
(a) at least one oil;
(b) at least one wax;
(c) at least one block copolymer of styrene and at least one olefin, optionally hydrogenated, and
(d) at least one nonionic surfactant;
including.

  The composition according to the invention can realize the ease of dispensing a predetermined amount of the composition (the dose is easy to determine), the ease of application (good slipperiness) and, for example, a creamy appearance. It can have increased viscosity (no dripping) while providing uniformity (even and smooth). Of course, due to the presence of (d) nonionic surfactant, the composition according to the present invention has good cleansing ability.

  When the composition of the present invention further comprises a mixture of (e) a triglyceride, (a) oil or (b) a wax, preferably a triglyceride, the composition of the present invention has a feel and / or feel that is good when used Or it can contain microparticles that can provide a massage effect.

  The compositions according to the invention are therefore suitable for cosmetic use, such as cleansing makeup from skin, in particular keratinous substances such as the face.

  Hereinafter, the present invention will be described in detail.

[oil]
The composition according to the invention comprises at least one (a) oil. When two or more kinds of (a) oil are used, they may be the same or different.

  Here, “oil” means a fatty compound or fatty substance in the form of a liquid or paste (non-solid) at room temperature (25 ° C.) under atmospheric pressure (760 mmHg). As oil, what is generally used in cosmetics can be used individually or in combination. These oils may be volatile or non-volatile.

  (a) The oil can be a nonpolar oil such as hydrocarbon oil, silicone oil; polar oil such as vegetable oil or animal oil and ester oil or ether oil; or a mixture thereof.

  (a) The oil can be selected from the group consisting of oils of plant or animal origin, synthetic oils, silicone oils, hydrocarbon oils and fatty alcohols.

  (a) The oil is selected from synthetic oils, hydrocarbon oils, and mixtures thereof, more preferably selected from ester oils, hydrocarbon oils, and mixtures thereof, and even more preferably selected from ester oils. Is preferred.

  Examples of vegetable oils include linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rape Mention may be made of seed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

  Examples of animal oils include squalene.

  Examples of synthetic oils include alkane oils, ester oils, and ether oils.

The alkane oil is preferably a liquid, linear or branched, cyclic or acyclic C ₆ -C ₃₀ alkane oil, in particular a C ₁₀ -C ₂₀ alkane oil, such as isododecane and isohexadecane.

Ester oil, preferably, saturated or unsaturated, liquid esters of linear or branched C ₁ -C ₂₆ aliphatic monoacid or polyacid, and a saturated or unsaturated, linear or branched Liquid esters of C ₁ -C ₂₆ aliphatic monoalcohols or polyalcohols, the total number of carbon atoms of these esters being 10 or more.

  Preferably, with respect to the monoalcohol ester, at least one of the alcohols and acids from which the esters of the present invention are derived is branched.

  Among monoesters of monoacids and monoalcohols, among others, ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carboxylate, alkyl myristate, such as isopropyl myristate or ethyl myristate, isocetyl stearate, isononanoic acid 2- Mention may be made of ethylhexyl, isononyl isononanoate, isodecyl neopentanoate and isostearyl neopentanoate.

C ₄ -C ₂₂ dicarboxylic acid or tricarboxylic acid and C ₁ -C ₂₂ alcohol ester, and monocarboxylic acid, dicarboxylic acid or tricarboxylic acid and non-sugar C ₄ -C ₂₆ dihydroxy alcohol, trihydroxy alcohol, tetrahydroxy alcohol or Esters with pentahydroxy alcohol can also be used.

  Diethyl sebacate, isopropyl lauroyl sarcosinate, diisopropyl sebacate, bis (2-ethylhexyl) sebacate, diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis (2-ethylhexyl) adipate , Diisostearyl adipate, bis (2-ethylhexyl) maleate, triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trioctate, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, Particular mention may be made of neopentyl glycol diheptanoate and diethylene glycol diisononanoate.

As ester oils, sugar esters and diesters of C _{6 to} C ₃₀ , preferably C _{12 to} C ₂₂ fatty acids can be used. The term “sugar” means an oxygen-bearing hydrocarbon-based compound containing some alcohol functionality with or without aldehyde functionality or ketone functionality and containing at least 4 carbon atoms. It is recalled. These sugars can be monosaccharides, oligosaccharides or polysaccharides.

  Examples of suitable saccharides that may be mentioned are sucrose (or sucrose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, and their derivatives, especially alkyl derivatives such as methyl Derivatives such as methyl glucose are included.

The fatty acid sugar esters are particularly selected from the group comprising esters or mixtures of esters with the aforementioned sugars with linear or branched, saturated or unsaturated C ₆ -C ₃₀ , preferably C ₁₂ -C ₂₂ fatty acids. Can do. If these compounds are unsaturated, they can have 1 to 3 conjugated or non-conjugated carbon-carbon double bonds.

  Esters according to this variant can also be selected from monoesters, diesters, triesters, tetraesters and polyesters, and mixtures thereof.

  These esters include, for example, oleic acid ester, lauric acid ester, palmitic acid ester, myristic acid ester, behenic acid ester, coconut fatty acid ester, stearic acid ester, linoleic acid ester, linolenic acid ester, capric acid ester and arachidonic acid ester. Or mixtures thereof, such as, in particular, mixed esters of oleopalmitate, oleostearate and palmitostearate, and pentaerythrityl tetraethylhexanoate.

  More particularly, monoesters and diesters, in particular sucrose monooleate or dioleate, glucose or methyl glucose, sucrose stearate, glucose or methyl glucose, sucrose behenate, glucose or methyl glucose, oleospalmitate sucrose, glucose or Methyl glucose, sucrose linoleate, glucose or methyl glucose, sucrose linolenate, glucose or methyl glucose and oleosetearate sucrose, glucose or methyl glucose are used.

  An example that may be mentioned is the product sold under the name Glucate® DO by the company Amerchol, which is methylglucose dioleate.

  Examples of preferred ester oils include, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octoate, octyldodecyl octoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexanoic acid 2-ethylhexyl, 2-ethylhexyl octoate, caprylic acid / 2-ethylhexyl caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carboxylate, lauroyl sarcosine isopropyl, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate Hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri (2 -Ethyl hexanoate), pentaerythrityl tetra (2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

  Examples of silicone oils include, for example, linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, etc .; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, And decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like; and mixtures thereof.

  Preferably, the silicone oil is selected from liquid polydialkylsiloxanes, in particular liquid polydimethylsiloxane (PDMS), and liquid polyorganosiloxanes containing at least one aryl group.

  These silicone oils may also be organically modified. The organically modified silicone that can be used in accordance with the present invention is a silicone oil as defined above, which is a silicone oil containing in its structure one or more organic functional groups attached by a carbon-hydrogen group. .

  Organopolysiloxanes are defined in great detail in Walter Noll's Chemistry and Technology of Silicones (1968), Academic Press. The organopolysiloxane may be volatile or non-volatile.

When the organopolysiloxane is volatile, the silicone is more particularly selected from those having a boiling point between 60 ° C. and 260 ° C., and even more particularly selected from:
(i) Cyclic polydialkylsiloxanes containing 3 to 7, preferably 4 to 5, silicon atoms. These are, for example, octamethylcyclotetrasiloxane sold in detail under the name Volatile Silicone® 7207 by the company Union Carbide or under the name Silbione® 70045 V2 by the company Rhodia, Decamethylcyclopentasiloxane sold under the name Volatile Silicone® 7158 by Carbide and under the name Silbione® 70045 V5 by Rhodia, and Silsoft 1217 by Momentive Performance Materials. Dodecamethylcyclopentasiloxane, as well as mixtures thereof. Mention may also be made of cyclopolymers of the type dimethylsiloxane / methylalkylsiloxane of the following formula, for example Silicone Volatile® FZ 3109 sold by the company Union Carbide.

With D '':

And having D ′:

Mixtures of cyclic polydialkylsiloxanes with organosilicon compounds, such as mixtures of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50/50), and octamethylcyclotetrasiloxane and oxy-1,1′-bis (2 , 2,2 ', 2', 3,3'-hexatrimethylsilyloxy) neopentane, etc.
(ii) A linear volatile polydialkylsiloxane containing 2 to 9 silicon atoms and having a viscosity of 5 × 10 ⁻⁶ m ² / s or less at 25 ° C. An example is decamethyltetrasiloxane sold in particular under the name SH 200 by the company Toray Silicone. Silicones belonging to this category are also described in articles published in Cosmetics and Toiletries, Vol. 91, January 1976, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicone is measured at 25 ° C. according to ASTM standard 445 Appendix C.

  Nonvolatile polydialkylsiloxanes can also be used. More specifically, these non-volatile silicones are selected from polydialkylsiloxanes, among which polydimethylsiloxanes containing trimethylsilyl end groups can be mainly cited.

Among these polydialkylsiloxanes, mention may be made in a non-limiting manner of the following commercial products:
-Silbione® oil 47 and 70 047 series or Mirasil® oil, such as 70 047 V 500 000 oil sold by the company Rhodia;
-Mirasil® series oil sold by Rhodia;
-200 series oil from Dow Corning, for example DC200 with a viscosity of 60000 mm ² / s;
-General Electric Viscasil (R) oil and General Electric SF series specific oil (SF 96, SF 18).

  Mention may also be made of polydimethylsiloxanes containing dimethylsilanol end groups known under the name dimethiconol (CTFA), for example the 48 series oil from Rhodia.

  Among the silicones containing aryl groups, mention may be made of polydiaryl siloxanes, especially polydiphenyl siloxanes and polyalkylaryl siloxanes such as phenyl silicone oils.

  Phenyl silicone oil has the following formula

[Where
R ₁ to R ₁₀ are each independently a saturated or unsaturated, linear, cyclic or branched C _{1 to} C ₃₀ hydrocarbon group, preferably a C _{1 to} C ₁₂ hydrocarbon group, more preferably C ₁ -C ₆ hydrocarbon-based radical, in particular methyl, ethyl, propyl, or butyl group,
m, n, p, and q are each independently an integer of 0 to 900 (including fractions), preferably 0 to 500 (including fractions), more preferably 0 to 100 (including fractions);
However, the sum of n + m + q is other than 0].

Examples that may be mentioned include products sold under the following names:
-70 641 series of Silbione® oil from Rhodia,
-Rhoodorsil® 70 633 and 763 series oils from Rhodia,
-Dow Corning 556 Cosmetic Grade Fluid oil from Dow Corning,
-Bayer PK series silicones, for example PK20 products,
-Certain oils of the SF series from General Electric, for example SF 1023, SF 1154, SF 1250 and SF 1265.

As the phenyl silicone oil, phenyl trimethicone (R _{1 to} R ₁₀ in the above formula is methyl; p, q, and n = 0; m = 1) is preferable.

  The organically modified liquid silicone can in particular contain polyethyleneoxy groups and / or polypropyleneoxy groups. Therefore, mention may be made of silicone KF-6017 proposed by Shin-Etsu Chemical Co., Ltd., and Silwet (registered trademark) oils L722 and L77 manufactured by Union Carbide.

The hydrocarbon oil can be selected from:
- linear or branched, optionally C ₆ -C ₁₆ lower alkanes cyclic. (Examples that may be mentioned include hexane, undecane, dodecane, tridecane and isoparaffins such as isohexadecane, isododecane and isodecane), and
Linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petrolatum, polydecene and hydrogenated polyisobutene, such as Parleam®, and squalane.

  Preferred examples of the hydrocarbon oil include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (for example, liquid paraffin), paraffin, petrolatum or petrolatum, naphthalene, etc .; hydrogenated polyisobutene, Mention may be made of isoeicosane and decene / butene copolymers; and mixtures thereof.

  The term “fat” in fatty alcohols means that contains a relatively large number of carbon atoms. Thus, alcohols having 4 or more, preferably 6 or more, more preferably 12 or more carbon atoms are included within the scope of fatty alcohols. The fatty alcohol may be saturated or unsaturated. The fatty alcohol may be linear or branched.

Fatty alcohols are R-OH [wherein R is saturated and unsaturated, linear, containing 4 to 40 carbon atoms, preferably 6 to 30, more preferably 12 to 20 carbon atoms. And a structure selected from branched groups. In at least one embodiment, R may be selected from C ₁₂ -C ₂₀ alkyl and C ₁₂ -C ₂₀ alkenyl group. R may or may not be substituted with at least one hydroxyl group.

  Examples of fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyl decanol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidonyl alcohol, Mention may be made of erucyl alcohol and mixtures thereof.

  The fatty alcohol is preferably a saturated fatty alcohol.

Thus, fatty alcohols, linear or branched, C ₆ -C ₃₀ alcohols, saturated or unsaturated, preferably linear or branched, saturated C ₆ -C ₃₀ alcohols, more preferably, It can be selected from linear or branched, saturated C ₁₂ -C ₂₀ alcohols.

Here, the term “saturated fatty alcohol” means an alcohol having a long-chain aliphatic saturated carbon chain. Saturated fatty alcohols are preferably selected from any linear or branched saturated C ₆ -C ₃₀ fatty alcohols. Among linear or branched, saturated C ₆ -C ₃₀ fatty alcohols, linear or branched, saturated C ₁₂ -C ₂₀ fatty alcohols are preferably used. Any linear or branched, can be used more preferably a saturated C ₁₆ -C ₂₀ fatty alcohols. Even more preferably branched C ₁₆ -C ₂₀ fatty alcohols can be used.

  Examples of saturated fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof. In one embodiment, cetyl alcohol, stearyl alcohol, octyldodecanol, hexyl decanol or mixtures thereof (eg, cetearyl alcohol), and behenyl alcohol can be used as saturated fatty alcohols.

  According to at least one embodiment, the fatty alcohol used in the composition according to the invention is preferably selected from octyldodecanol, hexyldecanol alcohol and mixtures thereof.

  The amount of (a) oil in the composition according to the present invention is 20% by mass or more, preferably 30% by mass or more, more preferably 40% by mass or more, and still more preferably 50% by mass, based on the total mass of the composition. It can be in the above range. For example, the amount of (a) oil in the composition according to the present invention is in the range of 20 to 90% by weight, preferably 30 to 85% by weight, more preferably 40 to 80% by weight, based on the total weight of the composition. obtain.

[wax]
The composition according to the invention comprises at least one (b) wax. When two or more (b) waxes are used, they may be the same or different.

  The term “wax” is solid at room temperature (25 ° C.) with a reversible solid / liquid state change, melting point of 30 ° C. or higher, preferably 40 ° C. or higher, more preferably 50 ° C. This means a lipophilic compound that is above, still more preferably 55 ° C or higher, and can be up to 120 ° C.

  For the purposes of the present invention, the melting point is measured according to, for example, ASTM D127.

  The wax used in the composition according to the invention can advantageously have a melting point of 50 ° C. or higher, preferably 60 ° C. or higher, even more preferably up to 75-90 ° C.

  The wax advantageously has a hardness in excess of 5 MPa at 20 ° C., in particular in the range from 5 to 15 MPa.

  The hardness of the wax is determined by measuring the compressive force measured at 20 ° C. using a texturometer sold under the name TA-XT2 by the company Rheo. The texturometer is equipped with a 2 mm diameter stainless steel cylinder that moves at a measuring speed of 0.1 mm / sec and penetrates the wax to a penetration depth of 0.3 mm.

The hardness measurement protocol is as follows.
The wax is melted at a temperature equal to the melting point of the wax + 10 ° C. The molten wax is poured into a container with a diameter of 25 mm and a depth of 20 mm. The wax is recrystallized at room temperature (25 ° C.) for 24 hours so that the surface of the wax is flat and smooth, and then the wax is stored at 20 ° C. for at least 1 hour before measuring the hardness or adhesion.

  The texturometer spindle is moved at a speed of 0.1 mm / s and then penetrated into the wax to a penetration depth of 0.3 mm. When the spindle penetrates the wax to a depth of 0.3 mm, the spindle is held for 1 second (corresponding to the relaxation time) and then pulled up at a speed of 0.5 mm / s.

  The hardness value is the measured maximum compressive force divided by the surface area at which the texturometer cylinder contacts the wax.

  Examples of the wax used in the present invention include natural wax and synthetic wax. Examples of natural waxes include petroleum wax, vegetable wax, and animal wax. Examples of petroleum waxes include paraffin wax, microcrystalline wax, and petrolatum. Examples of plant waxes include rice bran wax, carnauba wax, candelilla wax, ouricury wax, Japanese wax, cocoa butter, cork fiber wax, and sugar cane wax. Examples of animal waxes include lanolin wax, lanolin derivatives, and bead wax. Examples of synthetic waxes include synthetic hydrocarbon waxes and modified waxes.

  Examples of synthetic hydrocarbon waxes include polyethylene wax, polypropylene wax, and Fischer-Tropsch wax. Examples of modified waxes include paraffin wax derivatives, montan wax derivatives, and microcrystalline wax derivatives. (b) The wax is preferably selected from synthetic hydrocarbon waxes such as polyethylene wax, polypropylene wax, and Fischer-Tropsch wax.

  Examples of polyethylene waxes include ethylene homopolymers and ethylene-α-olefin copolymers. Alternatively, the wax can be obtained by pyrolysis of the copolymer. Examples of α-olefins include α-olefins having 3 to 12 carbon atoms such as propylene, 1-butene, 1-pentene, 1-hexene, 4-methyl-1-pentene, and 1-octene. Is included.

  Examples of polypropylene waxes include propylene homopolymers, ethylene-propylene copolymers (which are random or block copolymers), and propylene-α-olefin (excluding ethylene or propylene) copolymers. Alternatively, the wax can be obtained by pyrolysis of the copolymer. Examples of α-olefins include 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 4-methyl-1-pentene, 1-decene, 1-dodecene, 1-tetradecene, 1- Hexadecene and 1-octadecene are included.

  The polyethylene wax and the polypropylene wax can be obtained by a known method using a polymerization catalyst such as a Ziegler catalyst, a Ziegler-Natta catalyst, and a metallocene catalyst. Specifically, polyethylene wax and polypropylene wax obtained by using a metallocene catalyst as a polymerization catalyst are compared with polyethylene wax and polypropylene wax obtained by using a Ziegler catalyst or a Ziegler-Natta catalyst as a polymerization catalyst. Preferably, it has a narrow molecular weight distribution and stable quality.

  Fischer-Tropsch wax contains a water-based gas mainly containing linear carbon atoms and containing carbon monoxide and hydrogen as main components at 170 to 250 ° C. under atmospheric pressure using a catalyst such as cobalt, nickel, or iron. It is a synthetic hydrocarbon wax obtained by reacting. Fischer-Tropsch wax is characterized in that it contains hydrocarbons containing odd and even carbon atoms, i.e. both hydrocarbons containing odd and even carbon atoms. Most preferably, the wax according to the invention is a Fischer-Tropsch wax.

  (b) The wax is preferably selected from synthetic waxes, preferably synthetic waxes having a melting point of 30 ° C. or higher, more preferably 40 ° C. or higher, and even more preferably 50 ° C. or higher.

  The amount of the (b) wax in the composition may be 0.5 to 10% by mass, preferably 1 to 7% by mass, more preferably 1 to 5% by mass, based on the total mass of the composition.

[Block copolymer]
The composition according to the invention comprises at least one (c) block copolymer of styrene and at least one olefin, which is optionally hydrogenated. When two or more (c) block copolymers are used, they may be the same or different.

  (c) The block copolymer is preferably soluble or dispersible in liquid oil as defined above.

  The (c) block copolymer is preferably capable of thickening or gelling (a) the oil in the composition according to the invention. Therefore, it is preferred that the (c) block copolymer used in the composition according to the present invention functions as a polymeric gelling agent.

  (c) The block copolymer is preferably also film-forming, i.e. it can form a film when applied to the skin or the like.

  (c) The block copolymer can in particular be a diblock, triblock, multiblock, radical or star copolymer, or mixtures thereof, preferably a diblock copolymer. (c) The block copolymer can be hydrogenated.

  Such block copolymers are described in US 2002/005 562 and US Pat. No. 5,221,534.

  Examples of olefins that may be mentioned are in particular ethylenic carbide monomers containing one or two ethylenic unsaturations and containing 2 to 5 carbon atoms, such as ethylene, propylene, butadiene, isoprene or pentadiene. Is included.

  (c) The block copolymer preferably comprises at least one styrene block and at least one block comprising units selected from butadiene, ethylene, propylene, butylene and isoprene or mixtures thereof.

  According to one preferred embodiment, (c) the block copolymer is hydrogenated after monomer polymerization to reduce residual ethylenic unsaturation.

In particular, (c) the block copolymer contains styrene blocks and ethylene / C ₃ -C ₄ alkylene blocks, is a copolymer that is hydrogenated optionally.

  According to one preferred embodiment, the (c) block copolymer used in the composition according to the invention is preferably hydrogenated, preferably styrene-ethylene / propylene copolymer, styrene-ethylene / butylene copolymer and styrene-ethylene / isoprene. It can be a diblock copolymer selected from copolymers.

  According to one embodiment of the present invention, linear diblock copolymers based on styrene and ethylene / propylene, styrene and ethylene / butylene, or hydrogenated styrene-ethylene / propylene or styrene-ethylene / butylene copolymers are provided. (C) Preferred as a block copolymer. Such diblock copolymers are sold in particular under the names Kraton® G1701EU and Kraton® G1702H by the company Kraton Polymers.

  According to another preferred embodiment, the (c) block copolymer used in the composition according to the invention is preferably hydrogenated, preferably a styrene-ethylene / propylene-styrene copolymer, a styrene-ethylene / butylene-styrene copolymer, And a triblock copolymer selected from styrene-ethylene / isoprene-styrene copolymers. Triblock polymers are sold in particular under the names Kraton® G1650, Kraton® G1652, Kraton® D1101, Kraton® D1102 and Kraton® D1160 by the company Kraton Polymers. Yes.

  According to one embodiment of the present invention, the (c) block copolymer can be a linear styrene-ethylene / butylene-styrene triblock copolymer or a hydrogenated styrene / butadiene copolymer. Such triblock copolymers are sold in particular under the name Kraton® G1657M by the company Kraton Polymers.

  According to another preferred embodiment, the composition according to the invention comprises (c) a mixture of styrene-butylene / ethylene-styrene hydrogenated triblock copolymer and ethylene-propylene-styrene hydrogenated star polymer as block copolymer. Such a mixture is probably present especially in isododecane or another oil. Such mixtures are sold, for example, by Penreco under the trade names Versagel® M5960 and Versagel® M5670.

  Advantageously, diblock copolymers, such as those mentioned above, are used as polymeric gelling agents, in particular styrene-ethylene / propylene diblock copolymers or diblock copolymers and triblock copolymers, as described above. It is a mixture of

  (c) Block copolymers include styrene-ethylene / butylene-styrene triblock copolymer, styrene-ethylene / butylene diblock copolymer, styrene-ethylene / isoprene-styrene triblock copolymer, styrene / ethylene-propylene diblock copolymer, styrene-ethylene. It is preferably selected from the group consisting of / isoprene diblock copolymers and mixtures thereof.

  More preferably, the (c) block copolymer is selected from the group consisting of styrene-ethylene / butylene diblock copolymers, styrene / ethylene-propylene diblock copolymers, styrene / isoprene diblock copolymers and mixtures thereof.

  (c) The block copolymer is present in the composition in a content ranging from 0.5 to 30% by weight, preferably from 1 to 20% by weight, more preferably from 2 to 10% by weight, based on the total weight of the composition. can do.

[Nonionic surfactant]
The composition according to the invention comprises at least one (d) nonionic surfactant. Two or more kinds of (d) nonionic surfactants may be used in combination. Thus, a single type of (d) nonionic surfactant or a combination of different types of (d) nonionic surfactants can be used.

  (d) The nonionic surfactant preferably has an HLB value of 8 to 14, more preferably 8 to 13, and still more preferably 8 to 12.

  When more than one (d) nonionic surfactant is used, the HLB value is determined by the mass average of the HLB values of all nonionic surfactants. HLB is the ratio between the hydrophilic and lipophilic part of the molecule. The term HLB is well known to those skilled in the art and is described in “The HLB system. A time-saving guide to emulsifier selection” (ICI Americas Inc., published in 1984).

Nonionic surfactants are compounds that are well known per se (e.g., in this regard, "Handbook of Surfactants" by MR Porter, Blackie & Son publishers (Glasgow and London), 1991, 116-178. See page). Thus, nonionic surfactants can be selected, for example, from alcohols, alpha-diols, alkylphenols and esters of fatty acids, these compounds being ethoxylated, propoxylated or glycerolated, for example 8-30 It is possible to have at least one fatty chain containing 1 carbon atom, the number of ethylene oxide or propylene oxide groups ranges from 2 to 50 and the number of glycerol groups ranges from 1 to 30. Mention may also be made of maltose derivatives. Without limitation, copolymers of ethylene oxide and / or propylene oxide; condensates of ethylene oxide and / or propylene oxide with fatty alcohols; for example, polyethoxylated fatty amides containing 2-30 mol of ethylene oxide; Polyglycerolated fatty amide containing 1.5 to 4 glycerol groups, etc .; ethoxylated fatty acid ester of sorbitan containing 2 to 30 mol of ethylene oxide; ethoxylated oil of plant origin; fatty acid ester of sucrose; fatty acid ester of polyethylene glycol; glycerol ( C ₆ -C ₂₄₎ polyethoxylated fatty acid mono- or diesters of alkyl polyglycosides; N- (C ₆ -C ₂₄₎ alkylglucamine derivatives; amine oxides, for example, (C ₁₀ ~C ₁₄₎ alkylamine oxides or N- ( C ₁₀ -C ₁₄₎ acylaminopropylmorpholine O Mention may also be made of xoxides; and mixtures thereof.

  (d) The nonionic surfactant can preferably be selected from monooxyalkylenated or polyoxyalkylenated, monoglycerolated or polyglycerolated nonionic surfactants. More specifically, the oxyalkylene unit is an oxyethylene or oxypropylene unit, or a combination thereof, preferably an oxyethylene unit.

Examples of monooxyalkylenated or polyoxyalkylenated nonionic surfactants that may be mentioned include:
Mono oxyalkylenated or polyoxyalkylenated (C ₈ ~C ₂₄₎ alkylphenols,
Saturated or unsaturated, linear or branched mono oxyalkylenated or polyoxyalkylenated C ₈ -C ₃₀ alcohol,
Saturated or unsaturated, linear or branched mono oxyalkylenated or polyoxyalkylenated C ₈ -C ₃₀ amides,
Saturated or unsaturated, esters of linear or branched C ₈ -C ₃₀ acid with polyalkylene glycols,
Saturated or unsaturated, mono-oxyalkylenated or polyoxyalkylenated esters of linear or branched C ₈ -C ₃₀ acids and sorbitol,
Saturated or unsaturated, monooxyalkylenated or polyoxyalkylenated vegetable oils,
In particular, condensates of ethylene oxide and / or propylene oxide, alone or as a mixture.

  (d) The nonionic surfactant preferably comprises between 1 and 100, most preferably between 2 and 50 moles of ethylene oxide and / or propylene oxide. Advantageously, (d) the nonionic surfactant does not contain any oxypropylene units.

  According to one embodiment of the present invention, the polyoxyalkylenated nonionic surfactant comprises polyoxyethylenated fatty alcohol (polyethylene glycol ether of fatty alcohol) and polyoxyethylenated fatty ester (polyethylene glycol of fatty acid). Ester).

Examples of polyoxyethylenated fatty alcohols (or C ₈ -C ₃₀ alcohols) that may be mentioned are adducts of ethylene oxide with lauryl alcohol, in particular those containing 9-50 oxyethylene units, more details Containing 10 to 12 oxyethylene units (CTFA names: laureth-10 to laureth-12), adducts of ethylene oxide with behenyl alcohol, especially those containing 9 to 50 oxyethylene units (Beganes-9 to Behenez-50 as CTFA names), adducts of ethylene oxide with cetearyl alcohol (mixture of cetyl alcohol and stearyl alcohol), especially those containing 10-30 oxyethylene units (as CTFA names Ceteares-10 to ceteares-30), adducts of ethylene oxide with cetyl alcohol, especially 10-30 oxyethylenes Containing units (CTFA names from ceteth-10 to ceteth-30), adducts of ethylene oxide with stearyl alcohol, especially those containing 10-30 oxyethylene units (CTFA names from steareth-10 to steareth -30), adducts of ethylene oxide with isostearyl alcohol, especially those containing 10 to 50 oxyethylene units (CTFA names isosteares-10 to isosteares-50), and mixtures thereof.

As examples of monoglycerolated or polyglycerolated nonionic surfactants, monoglycerolated or polyglycerolated C ₈ -C ₄₀ alcohols are preferably used.

In particular, it monoglycerolated or polyglycerolated C ₈ -C ₄₀ alcohols, the following equation
RO- [CH ₂ -CH (CH ₂ OH) -O] _m -H or RO- [CH (CH ₂ OH) -CH ₂ O] _m -H
[Wherein R represents a linear or branched C _{8 to} C ₄₀ , preferably a C _{8 to} C ₃₀ alkyl group or an alkenyl group, and m is 1 to 30, preferably 1.5 to 10. Represents a number].

  Examples of compounds suitable in the context of the present invention include lauryl alcohol containing 4 mol of glycerol (INCI name: polyglyceryl-4 lauryl ether), lauryl alcohol containing 1.5 mol of glycerol, oleyl alcohol containing 4 mol of glycerol (INCI name : Polyglyceryl-4 oleyl ether), oleyl alcohol containing 2 mol of glycerol (INCI name: polyglyceryl-2 oleyl ether), cetearyl alcohol containing 2 mol of glycerol, cetearyl alcohol containing 6 mol of glycerol, oleo containing 6 mol of glycerol Mention may be made of octadecanol containing 6 mol of cetyl alcohol and glycerol.

  Just as the value of m represents a statistical value, alcohol can represent a mixture of alcohols, which means that in a commercial product, multiple polyglycerolated fatty alcohols can coexist in the form of a mixture. To do.

Among other monoglycerolated or polyglycerolated alcohols, C ₈ / C ₁₀ alcohol containing glycerol 1 mol, C ₁₀ / C ₁₂ alcohol and containing glycerol 1 mol, be used C ₁₂ alcohol containing glycerol 1.5mol preferable.

Mono- or polyglycerolated C ₈ -C ₄₀ fatty esters, the following formula:
R'O- [CH ₂ -CH (CH ₂ OR ''')-O] _m -R''orR'O- [CH (CH ₂ OR''')-CH ₂ O] _m -R ''
[Wherein, R ′, R ″ and R ′ ″ each independently represent a hydrogen atom or a linear or branched C _{8 to} C ₄₀ , preferably C _{8 to} C ₃₀ alkyl-CO— Or an alkenyl-CO- group, wherein at least one of R ′, R ″ and R ′ ″ is not a hydrogen atom, and m is a number in the range of 1-30, preferably 1.5-10. Can be represented.

  Examples of polyoxyethylenated fatty esters that may be mentioned include adducts of ethylene oxide with esters of lauric acid, palmitic acid, stearic acid or behenic acid, and mixtures thereof, in particular 9-100 oxyethylene units. Contains, for example, lauric acid PEG-9 to lauric acid PEG-50 (CTFA name: lauric acid PEG-9 to lauric acid PEG-50); palmitic acid PEG-9 to palmitic acid PEG-50 (CTFA name: palmitic acid) Acid PEG-9 to palmitic acid PEG-50); stearic acid PEG-9 to stearic acid PEG-50 (CTFA name: stearic acid PEG-9 to stearic acid PEG-50); palmitostearic acid PEG-9 to palmito PEG-50 stearate; PEG-9 behenate to PEG-50 behenate (CTFA name: PEG-9 behenate to PEG-50 behenate); Polyethylene glycol monostearate 100 EO (CTFA name: PEG-100 stearate ); And mixtures thereof.

According to one embodiment of the present invention, (d) the nonionic surfactant is a saturated or unsaturated, for example containing 8 to 24 carbon atoms, preferably 12 to 22 carbon atoms. Esters of polyols with chained fatty acids, preferably their polyoxyalkylenated derivatives containing 2 to 200, more preferably 5 to 50 oxyalkylene units, for example C _{8 to} C ₂₄ , preferably C ₁₂ -C ₂₂ and glyceryl esters of fatty acids preferably 2 to 200 pieces, their polyoxyalkylenated derivatives and more preferably containing 5-50 oxyalkylene units; C ₈ -C _24, preferably C ₁₂ -C Sorbitol esters of ₂₂ fatty acids and their polyoxyalkylenated derivatives containing preferably 2 to 200, more preferably 5 to 50 oxyalkylene units; C _{8 to} C ₂₄ , preferably of C _{12 to} C ₂₂ fatty acids sugar( Sucrose, maltose, glucose, fructose, and / or alkylglycose) esters and their polyoxyalkylenated derivatives containing preferably 2 to 200, more preferably 5 to 50 oxyalkylene units; ethers of fatty alcohols; It can be selected from C _{8 to} C ₂₄ , preferably C _{12 to} C ₂₂ fatty alcohol sugar ethers; and mixtures thereof.

  As glyceryl esters of fatty acids, glyceryl stearate (mono-, di- and / or glyceryl tri (iso) stearate) (CTFA name: glyceryl stearate) or glyceryl ricinoleate and mixtures thereof can be cited, and 5 to 50 mono-, di- or triesters of fatty acids with polyoxyalkylenated glycerol (mono-, di- or triesters of fatty acids with polyalkylene glycol ethers of glycerol) as polyoxyalkylenated derivatives of Of oxyethylene units, preferably polyoxyethylenated glyceryl stearate (mono-, di- and / or tri (iso) stearate) such as PEG-20 glyceryl stearate (mono-, di- and (Or tri (iso) stearate), for example, UNIOX GT 20IS by NOF Corporation Those sold under the names mentioned and PEG-7 glyceryl cocoate, e.g., may be cited those sold under the name CETIOL HE by the company BASF.

  Mixtures of these surfactants, for example products containing glyceryl stearate and PEG-100 stearate sold under the name ARLACEL 165 by the company Uniqema, and stearic acid marketed by the company Goldschmidt under the name TEGIN Products containing glyceryl (mono- and glyceryl distearate) and potassium stearate (CTFA name: glyceryl stearate SE) and the like can also be used.

Sorbitol esters of C ₈ -C ₂₄ fatty acids and their polyoxyalkylenated derivatives, esters of sorbitan palmitate, sorbitan isostearate, sorbitan trioleate, and an alkoxylated sorbitan containing fatty acids and for example 20 to 100 EO For example, sorbitan monostearate (CTFA name: sorbitan stearate) sold under the name Span 60 by ICI, sorbitan monopalmitate (CTFA name: sorbitan palmitate) sold under the name Span 40 by ICI ) PEG-40 sorbate oleate, such as those sold under the name ARLATONE TV by Croda, and sorbitan tristearate 20 EO (CTFA name: polysorbate 65) sold under the name Tween 65 by ICI , Polyethylene sorbitan trioleate (polysorbate 85) or Uniqe It can be selected from compounds commercially available from ma under the trade name Tween 20 or Tween 60.

  As esters of fatty acid and glucose or alkyl glucose, glucose palmitate, alkyl glucose sesquistearate, for example, methyl glucose sesquistearate, glucose palmitate, for example, methyl glucose palmitate or ethyl glucose palmitate, methyl glucoside fatty ester, Diester of methyl glucoside and oleic acid (CTFA name: methyl glucose dioleate), mixed ester of a mixture of methyl glucoside and oleic acid / hydroxystearic acid (CTFA name: dioleic acid / methyl stearic acid hydroxyglucose), methyl glucoside and isostearic acid Ester (CTFA name: methyl glucose isostearate), ester of methyl glucoside and lauric acid (CTFA name: methyl glucose laurate), Mixtures of monoesters and diesters of til glucoside and isostearic acid (CTFA name: methyl glucose sesquiisostearate), mixtures of monoesters and diesters of methyl glucoside and stearic acid (CTFA name: methyl glucose sesquistearate), especially AMERCHOL May refer to products marketed under the name Glucate SS, and mixtures thereof.

  As an ethoxylated ether of fatty acid and glucose or alkyl glucose, an ethoxylated ether of fatty acid and methyl glucose, especially a polyethylene glycol ether of a diester of stearic acid having about 20 mol of methyl glucose and ethylene oxide (CTFA name: PEG-20 methyl distearate) Glucose), for example, a product sold under the name Glucam E-20 distearic acid by the company AMERCHOL, a polyethylene glycol ether (CTFA name: PEG) of a mixture of mono- and diesters of stearic acid having about 20 mol of methyl-glucose and ethylene oxide -20 methyl glucose), in particular the products marketed under the name Glucamate SSE-20 by the company AMERCHOL and the products marketed under the name Grillocose PSE-20 by the company GOLDSCHMIDT, and mixtures thereof, for example. Can

  As sucrose esters, mention may be made, for example, of palmito-stearate saccharose, stearate saccharose and monolaurate saccharose.

  Alkyl polyglucosides can be used as sugar ethers, for example, decyl glucoside, such as the product marketed under the name MYDOL 10 by Kao Chemicals, the product marketed under the name PLATAREN 2000 by Henkel, and Caprylyl / capryl glucoside, such as the product marketed under the name ORAMIX NS 10 by Seppic, for example, lauryl glucoside, such as the product marketed under the name ORAMIX CG 110 by Seppic or LUTENSOL GD 70 by BASF Such as products marketed under the names PLANTAREN 1200 N and PLANTACARE 1200 by the company Henkel, coco-glucoside, such as products marketed under the name PLANTACARE 818 / UP by the company Henkel, in some cases with cetostearyl alcohol Cetostearyl glucoside being mixed, for example, under the name MONTANOV 68 by the company Seppic, Marketed under the name TEGO-CARE CG90 by the company Goldschmidt and under the name EMULGADE KE3302 by the company Henkel, for example in the form of a mixture of arachidyl and behenyl alcohol and arachidyl glucoside, marketed under the name MOTANOV 202 by the company Seppic. Mention may be made in particular of cocoyl ethyl glucoside, as well as mixtures thereof, marketed under the name MONTANOV 82 by the company Seppic in the form of mixtures with arachidyl glucoside, for example cetyl and stearyl alcohol (35/65).

  Mixtures of glycerides of alkoxylated vegetable oils, such as ethoxylated (200 EO) palm and copra (7 EO) glyceride mixtures, can also be cited.

According to one of the embodiments according to the invention, (d) the nonionic surfactant is a copolymer of ethylene oxide and propylene oxide, in particular
HO (C ₂ H ₄ O) _a (C ₃ H ₆ O) _b (C ₂ H ₄ O) _c H
Wherein a, b and c are an integer such that a + c is in the range from 2 to 100 and b is in the range from 14 to 60, and mixtures thereof You can choose.

  According to one embodiment of the present invention, (d) the nonionic surfactant can be selected from silicone surfactants. Examples disclosed in US-A-5364633 and US-A-5411744 are not limited.

  The nonionic surfactant is preferably of formula (I)

[Where
R ₁ , R ₂ and R ₃ are each independently a C _{1 to} C ₆ alkyl group or a-(CH ₂ ) _x- (OCH ₂ CH ₂ ) _y- (OCH ₂ CH ₂ CH ₂ ) _z -OR ₄ group. And at least one group of R ₁ , R ₂ or R ₃ is not an alkyl group, R ₄ is hydrogen, an alkyl group or an acyl group,
A is an integer ranging from 0 to 200;
B is an integer in the range 0-50, provided that A and B are not equal to 0 at the same time,
x is an integer ranging from 1 to 6;
y is an integer ranging from 1 to 30,
z is an integer in the range of 0-5].

  In one preferred embodiment of the invention, in the compound of formula (I), the alkyl group is a methyl group, x is an integer in the range of 2-6, and y is an integer in the range of 4-30. It is.

Examples of silicone surfactants of formula (I) include those of formula (II)

  In the formula, A is an integer in the range of 20 to 105, B is an integer in the range of 2 to 10, and y is an integer in the range of 10 to 20. .

Examples of silicone surfactants of formula (I) include those of formula (III)
H- (OCH ₂ CH ₂ ) _y- (CH ₂ ) ₃ -[(CH ₃ ) ₂ SiO] _{A '} -(CH ₂ ) _3- (OCH ₂ CH ₂ ) _y -OH (III)
A compound in which A ′ and y are integers in the range of 10 to 20 can also be mentioned.

  The compounds of the invention that can be used are those sold under the names DC5329, DC7439-146, DC2-5695 and Q4-3667 by Dow Corning. Compound DC5329 has A = 22, B = 2, y = 12, DC7439-146 has A = 103, B = 10, y = 12, and DC2-5695 has A = 27, B = 3. A compound of formula (II) wherein y is 12.

  Compound Q4-3667 is a compound of formula (III) wherein A is 15 and y is 13.

  (d) The nonionic surfactant is preferably selected from oxyalkylenated glycerol esters, and sorbitan oxyalkylenated fatty acid esters, and mixtures thereof.

  The amount of the (d) nonionic surfactant in the composition can be 5 to 25% by mass, preferably 7 to 20% by mass, more preferably 8 to 16% by mass, based on the total mass of the composition.

[Triglyceride]
The composition according to the invention preferably comprises at least one (e) triglyceride different from (a) oil or (b) wax. When two or more (e) triglycerides are used, they may be the same or different.

  The composition according to the invention preferably comprises at least one artificial triglyceride.

  The composition according to the invention preferably comprises a mixture of triglycerides, preferably a mixture of artificial triglycerides.

  (e) The triglyceride preferably has a melting point of 30 ° C. or higher, more preferably 40 ° C. or higher, and even more preferably 50 ° C. or higher.

  Examples of artificial triglycerides include, for example, capryl caprylyl glyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, tri (capric acid / caprylic acid) glyceryl, And tri (capric / caprylic / linolenic) glyceryl.

  It may be preferred to use (palmitic acid / stearic acid) triglycerides and / or (caprylic acid / capric acid / myristic acid / stearic acid) triglycerides.

  Due to the presence of (e) triglycerides other than (a) oil or (b) wax, the composition according to the present invention may comprise fine particles that can provide a good feel and / or massage effect when used. it can.

  (e) It should be noted that the amount of triglyceride should be not more than 6% by weight relative to the total weight of the composition. (e) When the amount of triglyceride exceeds 6% by mass relative to the total mass of the composition, it may be difficult to recognize the presence of fine particles.

  Therefore, the amount of (e) triglyceride in the composition can be 0.01 to 6% by mass, preferably 0.1 to 5% by mass, and more preferably 1 to 4% by mass with respect to the total mass of the composition.

[Optional ingredients]
The composition according to the invention can be used, for example, for fillers, softeners, wetting agents, emulsions, stabilizers, emollients, silicones, antifoaming agents, perfumes, preservatives, ionic surfactants such as cationic From, anionic and amphoteric surfactants, active agents, colorants, cationic, anionic, and amphoteric polymers, propellants, or any other ingredient normally used in cosmetics and / or dermatology One or more standard cosmetic adjuvants may also be included.

  It goes without saying that the person skilled in the art adds to the composition according to the invention in such a way that the advantageous properties inherently related to the composition according to the invention are not adversely affected or substantially not affected by the envisaged addition. The optional adjuvant will be carefully selected.

  Preferably, the composition according to the invention is substantially anhydrous. The term “substantially anhydrous” means herein that the composition according to the invention may contain only a small amount of water, preferably no water. Accordingly, the amount of water can be 2% by mass or less, preferably 1% by mass or less, and more preferably 0.5% by mass relative to the total mass of the composition. It is particularly preferred that the composition according to the invention does not contain water as a separate component added intentionally. On the other hand, small or trace amounts of water may be present in the components themselves contained in the composition according to the invention.

[Cosmetic composition]
The composition according to the invention can preferably be used as a cosmetic composition. Thus, the composition according to the invention may be intended for application to keratin materials. In the present specification, the keratin substance means a material containing keratin as a main component, and examples thereof include skin, scalp, nails, lips, and hair. Therefore, the composition according to the present invention is preferably used in a cosmetic method for keratin substances.

  The composition according to the invention is preferably a cleansing composition from keratin materials, more preferably a makeup remover, in particular an oil makeup remover. The composition according to the invention is preferably in the form of a balm.

[Beauty method]
The present invention is also a cosmetic method, preferably a cleansing method, for keratin substances such as skin,
As described above, applying the composition according to the present invention;
Optionally rinsing the keratin material,
Relates to a method comprising:

  The keratin material may be in a dry or wet state before applying the composition according to the invention. Following application of the composition according to the invention to the keratin material, the keratin material may or may not be rinsed. Prior to rinsing, the composition according to the invention can be left in contact with the keratin material, for example for 10 seconds to 30 minutes.

  (a) Due to the presence of oil, the composition according to the present invention can dissolve oily components or disperse pigments in cosmetics such as make-up in keratin materials. In addition, due to the presence of (d) a nonionic surfactant, the composition according to the present invention can suspend oily components and pigments in cosmetics such as make-up in keratin materials, which can be easily removed from keratin materials. Can be removed. Thus, the composition according to the invention can preferably be used for cleansing or removing cosmetics such as makeup from keratin materials.

  Furthermore, (b) the presence of the wax enables the composition according to the present invention to increase the viscosity and stability of the composition and to prevent dripping.

  Furthermore, due to the presence of (c) a block copolymer of styrene and at least one olefin in combination with (a) an oil and (b) a wax, the composition according to the invention makes it easy to dispense a given amount of the composition. Can provide excellent texture, ease of application, and uniformity that can achieve, for example, a creamy appearance.

  The invention is explained in more detail by means of examples. However, these examples should not be construed as limiting the scope of the invention. The following examples are presented as non-limiting illustrations of the field of the invention.

(Examples 1 to 11)
The following compositions according to Examples 1-11 shown in Table 1 were prepared by mixing the ingredients shown in Table 1. All numerical values for the amounts of ingredients shown in Table 1 are based on “mass%” as the active ingredient.

(Comparative Examples 1 to 3)
The following compositions according to Comparative Examples 1-3 shown in Table 2 were prepared by mixing the ingredients shown in Table 2. All numerical values of the components shown in Table 2 are based on “mass%” as the active ingredient.

N.A .: Not applicable

[Evaluation]
The compositions according to Examples 1 to 11 and Comparative Examples 1 to 3 were evaluated as follows.

(Stability)
Each of the compositions according to Examples 1-11 and Comparative Examples 1-3 were visually observed for color, odor, transparency, uniformity, and apparent viscosity characteristics. A composition was evaluated as “good” if the above properties of the remaining composition did not change for two months at room temperature. A composition was rated as “not good” if any of the above properties changed in two months.

  These results are shown in Tables 1 and 2.

(Creamy)
Each of the compositions according to Examples 1-11 and Comparative Examples 1-3 in an amount of 0.5 g was dispensed with a spoon from the container containing the composition. The 0.5 g amount of the composition was sandwiched between two transparent glass plates, and the two transparent glass plates were pressed so that the distance between the two transparent glass plates was approximately 3 mm. A composition was evaluated as “good” if particles like lumps of size 2 mm or larger were not found between two transparent glass plates. A composition was evaluated as “bad” if any particles, such as lumps of size 2 mm or larger, were found between two transparent glass plates.

  These results are shown in Tables 1 and 2.

(Ease of dispensing specified amount)
Each of the compositions according to Examples 1-11 and Comparative Examples 1-3 was dispensed by the tester with a finger from the container containing the composition. The tester was asked to dispense the specified target amount of the composition from the container. The amount of composition taken on the finger was weighed to determine the difference between the specified target amount and the mass of composition dispensed from the container. This operation was repeated 5 times. A composition was rated “good” if all differences were within ± 0.4 g. If any of these differences were not within ± 0.4 g, the composition was rated as “not good”.

  These results are shown in Tables 1 and 2.

(Ease of application)
Each of the compositions according to Examples 1-11 and Comparative Examples 1-3 in an amount of 1.5 g was dispensed with a spoon from the container containing the composition. An amount of 1.5 g of the composition was applied to a glass plate by drawing a 3 cm diameter circle with an index finger. A composition was evaluated as “good” if it was applied uniformly and no lumpy particles were found on the inside and outside of a 3 cm diameter circle. A composition was evaluated as “bad” if it was not evenly applied and particles like lumps were found inside and outside of a 3 cm diameter circle.

  These results are shown in Tables 1 and 2.

(Ability to be washed away)
Each of the compositions according to Examples 1 to 11 and Comparative Examples 1 to 3 in an amount of 2 g was applied to the faces of 6 female judges and massaged for 30 seconds. The female judge then washed the composition itself with tap water and dried it with a towel. Five seconds later, the female judge evaluated the remaining greasy. If all six female judges did not feel greasy, the composition was evaluated as “good”. If any of the six female judges felt greasy, the composition was rated as “bad”.

  These results are shown in Tables 1 and 2.

(Presence of fine particles)
If you feel very small solid particles (size less than 1 mm) during the coating operation to evaluate the “ease of coating” described above, the presence of fine particles is confirmed and the composition ". When such very small solid particles were not felt, the presence of fine particles was not confirmed, and the composition was evaluated as “none”.

  These results are shown in Tables 1 and 2.

(result)
The compositions according to Examples 1-11 comprising oil, wax, nonionic surfactant and a block copolymer of styrene and at least one olefin are stable over time; creamy; Easy to dispense; easy to apply; good ability to be washed away.

  Thus, the compositions according to Examples 1 to 11 were found to have good cosmetic properties in particular as cleansing products for skin, preferably as makeup removers.

  In addition, the compositions according to Examples 6 and 7 comprising triglycerides can comprise microparticles that can provide a good feel and / or massage effect when used. Therefore, the compositions according to Examples 6 and 7 are particularly preferred as a skin cleansing product, more preferably as a makeup remover.

  The composition according to Comparative Example 1 did not contain any block copolymer of styrene and at least one olefin, so the composition was not creamy; its predetermined amount was difficult to dispense; and difficult to apply. Therefore, the composition according to Comparative Example 1 was inferior to the compositions according to Examples 1-11.

  The composition according to Comparative Example 2 does not contain any wax, and therefore phase separation occurs due to poor stability of the composition and very low viscosity, which can be evaluated in the separated bulk. As it was not possible, the creaminess of the composition, the ease of dispersion of the specified amount, the ease of application and the ability to be washed away could not be evaluated. Therefore, the composition according to Comparative Example 2 was inferior to the compositions according to Examples 1-11.

  The composition according to Comparative Example 3 does not contain any nonionic surfactant and therefore the composition is not capable of being washed away. Therefore, the composition according to Comparative Example 3 was inferior to the compositions according to Examples 1-11.

Claims (15)

(a) at least one oil;
(b) at least one wax;
(c) at least one block copolymer of styrene and at least one olefin, optionally hydrogenated, and
(d) at least one nonionic surfactant;
A composition comprising:   (a) the oil is from the group consisting of oils of vegetable or animal origin, synthetic oils, silicone oils, hydrocarbon oils and fatty alcohols, preferably from synthetic oils, hydrocarbon oils and mixtures thereof, more preferably ester oils, 2. The composition of claim 1 selected from hydrocarbon oils and mixtures thereof.   The amount of (a) oil in the composition is 20 to 90% by weight, preferably 30 to 85% by weight, more preferably 40 to 80% by weight, based on the total weight of the composition. A composition according to 1.   (b) The wax according to any one of claims 1 to 3, wherein the wax is selected from a synthetic wax, preferably a synthetic wax having a melting point of 30 ° C or higher, more preferably 40 ° C or higher, and even more preferably 50 ° C or higher. A composition according to 1.   The amount of (b) wax in the composition is from 0.5 to 10% by weight, preferably from 1 to 7% by weight, more preferably from 1 to 5% by weight, based on the total weight of the composition. 5. The composition according to any one of 4.   (c) The block copolymer comprises at least one styrene block and at least one block comprising units selected from butadiene, ethylene, propylene, butylene and isoprene or mixtures thereof. The composition according to item. (c) block copolymer comprises at least one styrene block and at least one ethylene / C ₃ -C ₄ alkylene blocks A composition according to any one of claims 1 to 6.   (c) the block copolymer is styrene-ethylene / butylene-styrene triblock copolymer, styrene-ethylene / butylene block copolymer, styrene-ethylene / isoprene-styrene triblock copolymer, styrene / ethylene-propylene diblock copolymer, styrene / isoprene 8. A composition according to any one of claims 1 to 7 selected from the group consisting of diblock copolymers and mixtures thereof.   (c) the block copolymer is a diblock copolymer preferably selected from the group consisting of styrene-ethylene / butylene diblock copolymers, styrene / ethylene-propylene diblock copolymers, styrene / isoprene diblock copolymers and mixtures thereof; 9. The composition according to any one of claims 1 to 8.   The amount of (c) block copolymer in the composition is 0.5-30% by weight, preferably 1-20% by weight, more preferably 2-10% by weight, based on the total weight of the composition. The composition according to any one of 1 to 9.   (d) the nonionic surfactant has an HLB value of 8-14, preferably selected from oxyalkylenated glycerol esters and sorbitan oxyalkylenated fatty acid esters, and mixtures thereof The composition according to any one of claims 1 to 10.   The amount of (d) nonionic surfactant in the composition is 5 to 25% by mass, preferably 7 to 20% by mass, more preferably 8 to 16% by mass, based on the total mass of the composition. 12. The composition according to any one of claims 1 to 11.   Other than (a) oil or (b) wax, preferably the melting point is 30 ° C. or higher, more preferably (e) at least one triglyceride in an amount of 6% by mass or less based on the total mass of the composition. 13. The composition according to any one of claims 1 to 12, comprising.   14. The composition according to any one of claims 1 to 13, which is a cosmetic composition, preferably a cleansing composition, more preferably a makeup remover. Applying the composition according to any one of claims 1 to 14 to a keratin material;
Optionally rinsing the keratin material,
A cosmetic method, preferably a cleansing method, for keratinous substances such as skin, comprising