WO2017000050A1

WO2017000050A1 - Oil controlling sunscreen composition

Info

Publication number: WO2017000050A1
Application number: PCT/BR2015/050083
Authority: WO
Inventors: Vitor Cellia SEIXAS; Anne - Laure Carmen Paulette GAUDRY
Original assignee: L'oreal
Priority date: 2015-06-29
Filing date: 2015-06-29
Publication date: 2017-01-05
Also published as: BR112017026169A2

Abstract

The present invention is directed to a composition in the form of an oil- in-water emulsion comprising (a) one or more oil-soluble organic sunscreen ingredient; (b) one or more water-soluble organic sunscreen ingredient; (c) one or more silica-coated titanium dioxide sunscreen ingredient; (d) one or more mattifying powder; (e) one or more fatty compound; (f) an emulsifier system comprising: (i) one or more anionic surfactant, (ii) one or more non-ionic surfactant, (iii) one or more co- emulsifying ingredient; and (g) water. The compositions are particularly useful for preventing and/or controlling skin oiliness. The compositions are also useful for protecting the skin from damage caused by ultraviolet radiation.

Description

OIL CONTROLLING SUNSCREEN COMPOSITION

FIELD OF THE INVENTION

BACKGROUND OF THE INVENTION

Conventional sunscreen products generally take the form of ultraviolet (UV)-filter compounds and/or particulate UV-screening compounds (collectively, "sunscreen ingredients") that are solubilized, emulsified, or dispersed in a cosmetically or physiologically acceptable carrier, which is topically applied to the skin. The sunscreen ingredients, typically through the aid of polymers and other ingredients included in the vehicle, form a thin, protective, and often water-resistant layer on the skin. Sunscreens can be used to protect against UV damage and delay the signs of aging.

Human skin contains sebaceous glands which secrete an oily or waxy substance known as sebum. A build-up of sebum on the surface of skin can cause the skin to appear shiny and/or oily. Shiny and/or oily skin is both uncomfortable and unappealing to many consumers. Shiny and/or oily skin can also highlight skin imperfections and reduce the wearability of other cosmetic compositions.

Most organic sunscreen ingredients are oil-like and/or oil-soluble materials. The degree of UV protection afforded by a sunscreen composition is related to the amount and type of sunscreen ingredients it contains. For example, compositions with higher amounts of sunscreen ingredients may provide a higher degree of UV protection. Skin care products containing high levels of organic sunscreen ingredients, while providing a high degree of UV protection, contribute to the shiny or oily appearance of the skin.

Sunscreen compositions which may prevent and control skin oiliness are disclosed, for example, in WO 2013/1022848. The disclosed compositions contain an emulsifying agent, a water-soluble sunscreen ingredient, an oil-soluble sunscreen ingredient, and up to 7% oil absorbing particles.

Oil-soluble sunscreen ingredients tend to contribute to the greasy feel of sunscreen compositions. The compositions disclosed in WO 2013/1022848 contain a greater amount of water-soluble sunscreen ingredients compared to oil-soluble sunscreen ingredients by weight, relative to the total weight of the composition. Example 1 discloses a sunscreen composition comprising 9% water-soluble sunscreen ingredients and 7% oil-soluble sunscreen ingredients by weight, relative to the total weight of the composition. Without wishing to be bound by theory, the composition disclosed in example 1 may be expected to be less greasy and prevent and/or control skin oiliness better than a composition containing a greater amount of oil-soluble sunscreen ingredients compared to water-soluble sunscreen ingredients by weight, relative to the total weight of the composition.

The applicants have recognized that severe aesthetic and performance problems still exist in most sunscreen products. Accordingly, the applicants have now identified a novel sunscreen composition in the form of an oil-in-water emulsion which provides improved performance controlling skin oiliness, provides a matte effect to the skin, and is sensorially pleasant to apply.

SUMMARY OF THE INVENTION

The present invention is directed to a composition in the form of an oil- in-water emulsion comprising:

(a) one or more oil-soluble organic sunscreen ingredient;

(b) one or more water-soluble organic sunscreen ingredient;

(c) one or more silica-coated titanium dioxide sunscreen ingredient; (d) one or more mattifying powder;

(e) one or more fatty compound:

(f) an emulsifier system comprising:

(i) one or more anionic surfactant;

(ii) one or more non-ionic surfactant; and

(iii) one or more co-emulsifying ingredient;

(g) water.

The invention is also directed to a method of preventing and/or controlling skin oiliness involving applying the above-disclosed composition onto a surface of the human skin. The invention is also directed to a method of protecting the skin from damage caused by ultraviolet radiation involving applying the above- disclosed composition onto a surface of the human skin.

DETAILED DESCRIPTION OF THE INVENTION

Oil-in-water emulsion" or "O/W emulsion" as used herein, means an oil phase dispersed in an water phase, where the water phase is a continuous phase.

"One or more" as used herein means at least one and thus includes individual components as well as mixtures/combinations.

"Substituted," as used herein, means comprising one or more substituents. Non-limiting examples of substituents include atoms, such as oxygen atoms and nitrogen atoms, as well as functional groups, such as hydroxyl groups, ether groups, alkoxy groups, acyloxyalkyl groups, oxyalkylene groups, polyoxyalkylene groups, carboxylic acid groups, amine groups, acylamino groups, amide groups, halogen containing groups, ester groups, thiol groups, sulphonate groups, thiosulphate groups, siloxane groups, and polysiloxane groups. The substituent(s) may be further substituted.

"INCI" is an abbreviation of International Nomenclature of Cosmetic Ingredients, which is a system of names provided by the International Nomenclature Committee of the Personal Care Products Council to describe personal care ingredients.

The compositions and methods of the present invention can comprise, consist of, or consist essentially of the essential elements and limitations of the invention described herein, as well as any additional or optional ingredients, components, or limitations described herein or otherwise useful.

Other than in the operating examples, or where otherwise indicated, all numbers expressing quantities of ingredients and/or reaction conditions are to be understood as being modified in all instances by the term "about."

All percentages, parts and ratios herein are based upon the total weight of the compositions of the present invention, unless otherwise indicated.

As used herein, all ranges provided are meant to include every specific range within, and combination of subranges between, the given ranges. Thus, a range from 1 -5, includes specifically 1 , 2, 3, 4 and 5, as well as subranges such as 2- 5, 3-5, 2-3, 2-4, 1 -4, etc.

As used herein a range of ratios is meant to include every specific ratio within, and combination of subranges between, the given ranges. As used herein, the expression "at least one" means one or more and thus includes individual components as well as mixtures/combinations.

"Cosmetically acceptable" means that the item in question is compatible with any keratinous substrate. For example, "cosmetically acceptable carrier" means a carrier that is compatible with any keratinous substrate.

In an embodiment, the present invention is directed to composition in the form of an oil-in-water emulsion comprising:

(a) one or more oil-soluble organic sunscreen ingredient;

(b) one or more water-soluble organic sunscreen ingredient;

(c) one or more silica-coated titanium dioxide sunscreen ingredient;

(d) one or more mattifying powder;

(e) one or more fatty compound;

(f) an emulsifier system comprising:

(i) one or more anionic surfactant;

(ii) one or more non-ionic surfactant; and

(iii) one or more co-emulsifying ingredient; and

(g) water.

In another embodiment, the present invention is directed to composition in the form of an oil-in-water emulsion comprising:

(a) 7% to 18% by weight, based upon the total weight of the composition, of one or more oil-soluble organic sunscreen ingredient;

(b) 1 % to 7% by weight, based upon the total weight of the composition, of one or more water-soluble organic sunscreen ingredient;

(c) 5% to 10% by weight, based upon the total weight of the composition, of one or more silica-coated titanium dioxide sunscreen ingredient;

(d) 2% to 6% by weight, based upon the total weight of the composition, of one or more mattifying powder;

(e) 8% to 12% by weight, based upon the total weight of the composition, of one or more fatty compound:

(f) an emulsifier system comprising:

(i) 0.5% to 4% by weight, based upon the total weight of the composition, of one or more anionic surfactant;

(ii) 0.75% to 4% by weight, based upon the total weight of the composition, of one or more non-ionic surfactant; (iii) 1 % to 2% by weight, based upon the total weight of the composition, by weight, based upon the total weight of the composition, of one or more co-emulsifying ingredient; and

(g) 30% to 40% by weight, based upon the total weight of the composition, of water.

In a preferred embodiment, the present invention is directed to composition in the form of an oil-in-water emulsion comprising:

(c) 5% to 10% by weight, based upon the total weight of the composition, of one or more silica-coated titanium dioxide sunscreen ingredient having a particle size from 2 microns to 7 microns;

(f) an emulsifier system comprising:

(ii) 0.75% to 4% by weight, based upon the total weight of the composition, of one or more non-ionic surfactant;

(iii) 1 % to 2% by weight, based upon the total weight of the composition, by weight, based upon the total weight of the composition, of one or more co-emulsifying ingredient;

(g) 30% to 40% by weight, based upon the total weight of the composition, of water; and

(h) 5% to 10% by weight, based upon the total weight of the composition, of one or more water-soluble solvent.

The compositions of the present invention have a a pH of from about 5.0 to about 9.0, preferably from about 6.0 to about 8.0, and most preferably from about 7.0 to about 7.6.

Other subjects and characteristics, aspects and advantages of the invention will emerge even more clearly on reading the description and the example that follows.

OIL-SOLUBLE ORGANIC SUNSCREEN INGREDIENT

The term "oil-soluble organic sunscreen ingredient" means any organic compound for screening out UV radiation, which can be fully dissolved in molecular form or miscible in an oil phase or which can be dissolved in colloidal form (for example in micellar form) in an oil fatty phase.

Non-limiting examples of oil-soluble organic sunscreen ingredients useful in the invention include, for example, cinnamic derivatives; anthranilates; salicylic derivatives; dibenzoylmethane derivatives; camphor derivatives; benzophenone derivatives; diphenylacrylate derivatives; triazine derivatives; benzotriazole derivatives; benzalmalonate derivatives, especially those cited in patent US5624663; benzimidazole derivatives; imidazolines; bis-benzoazolyl derivatives as described in patents EP669323 and US2463264; p-aminobenzoic acid (PABA) derivatives; methylene bis(hydroxyphenylbenzotriazole) derivatives as described in applications US5237071 , US5166355, GB2303549, DE19726184 and EP8931 19; benzoxazole derivatives as described in patent applications EP0832642, EP1027883, EP1300137 and DE10162844; screening polymers and screening silicones such as those described especially in patent application WO 93/04665; dimers derived from alkyl-styrene such as those described in patent application DE 19855649; 4,4-diarylbutadienes such as those described in patent applications EP0967200, DE19746654, DE19755649, EP-A-1008586, EP1 133980 and EP1 133981 , merocyanine derivatives such as those described in patent applications WO 04/006878, WO 05/058269 and WO 06/032741 ; and mixtures thereof, the entire contents of the patents and patent applications being incorporated by reference in their entirety.

As examples of other suitable oil-soluble organic sunscreen ingredients, mention may be made of those denoted hereinbelow under their INCI name:

Cinnamic derivatives: Examples of suitable cinnamic derviatives include, but are not limited to, ethylhexyl methoxycinnamate sold in particular under the trade name "Parsol^® MCX" by DSM Nutritional Products, isopropyl methoxycinnamate, isoamyl methoxycinnamate sold under the trade name "Neo Heliopan^® E 1000" by Symrise, DEA methoxycinnamate, diisopropyl methylcinnamate, glyceryl ethylhexanoate dimethoxycinnamate.

Dibenzoylmethane derivatives:

Examples of suitable dibenzoylmethane derivatives include, but are not limited to, butyl methoxydibenzoylmethane sold especially under the trade name "Parsol^® 1789" by DSM, isopropyl dibenzoylmethane.

Salicylic derivatives:

Examples of suitable salicylic derivatives include, but are not limited to, homosalate sold under the name "Eusolex^® HMS" by Rona/EM Industries, ethylhexyl salicylate sold under the name "Neo Heliopan^® OS" by Symrise, dipropylene glycol salicylate sold under the name "DipsalTM" by Scher, TEA salicylate sold under the name "Neo Heliopan^® TS" by Symrise.

beta, beta -Diphenylacrylate derivatives:

Examples of suitable beta, beta -Diphenylacrylate derivatives include, but are not limited to, octocrylene sold in particular under the trade name "Uvinul^® N539" by BASF, etocrylene sold in particular under the trade name "Uvinul^® N35" by BASF.

Benzophenone derivatives:

Examples of suitable benzophenone derivatives include, but are not limited to, benzophenone-1 sold under the trade name "Uvinul^® 400" by BASF, benzophenone-2 sold under the trade name "Uvinul^® D50" by BASF, benzophenone-

3 or oxybenzone sold under the trade name "Uvinul^® M40" by BASF, benzophenone-

4 sold under the trade name "Uvinul^® MS40" by BASF, benzophenone-5, benzophenone-6 sold under the trade name "Helisorb^® 1 1 " by Norquay, benzophenone-8 sold under the trade name "Spectra-Sorb UV-24" by American Cyanamid, benzophenone-9 sold under the trade name "Uvinul^® DS-49" by BASF, benzophenone-12, n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate sold under the trade name Uvinul^® A+" or as a mixture with octyl methoxycinnamate under the trade name "Uvinul^® A+B" by BASF.

Benzylidenecamphor derivatives: Examples of suitable benzylidenecamphor derivatives include, but are not limited to, 3-Benzylidene camphor manufactured under the name "Mexoryl™ SD" by Chimex, 4-methylbenzylidene camphor sold under the name "Eusolex^® 6300" by Merck, polyacrylamidomethyl benzylidene camphor manufactured under the name "Mexoryl™ SW" by Chimex.

Phenylbenzotriazole derivatives:

Examples of suitable phenylbenzotriazole derivatives include, but are not limited to, drometrizole trisiloxane sold under the name "silatrizole" by Rhodia Chimie, methylene bis-benzotriazolyl tetramethylbutyl-phenol sold in solid form under the trade name "MIXXIM BB/100" by Fairmount Chemical, or in micronized form as an aqueous dispersion under the trade name "Tinosorb^® M" by Ciba Specialty Chemicals.

Triazine derivatives:

Examples of suitable triazine derivatives include, but are not limited to, bis-Ethylhexyloxyphenol methoxyphenyl triazine sold under the trade name "Tinosorb^® S" by BASF, ethylhexyl triazone sold in particular under the trade name "Uvinul^® T150" by BASF, diethylhexyl butamido triazone sold under the trade name "Uvasorb^® HEB" by Sigma 3V, 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s- triazine, 2,4,6-tris(diisobutyl 4'-aminobenzalmalonate)-iS triazine, 2,4-bis(dineopentyl 4'-aminobenzalmalonate)-6-(n-butyl 4'-aminobenzoate)-s-triazine, symmetrical triazine screening agents described in patent US 6,225,467, patent application WO 2004/085412 (see compounds 6 and 9) or the document "Symmetrical Triazine Derivatives" IP.COM Journal, IP.COM Inc., West Henrietta, NY, US (20 September 2004), especially 2,4,6-tris(biphenyl)-1 ,3,5-triazines (in particular 2,4,6-tris(biphenyl- 4-yl)-1 ,3,5-triazine and 2,4,6-tris(terphenyl)-1 ,3,5-triazine, which is included in patent applications WO 06/035000, WO 06/034982, WO 06/034991 , WO 06/035007, WO 2006/034992 and WO 2006/034985).

Anthranilic derivatives:

An example of a suitable anthranilic derivative includes, but is not limited to, menthyl anthranilate sold under the trade name "Neo Heliopan^® MA" by Symrise.

Imidazoline derivatives:

An example of a suitable imidazoline derivative includes, but is not limited to, ethylhexyl dimethoxybenzylidene dioxoimidazoline propionate. Benzalmalonate derivatives:

An example of a suitable Benzalmalonate derivative includes, but is not limited to, polyorganosiloxane containing benzalmalonate functions, for instance polysilicone-15, sold under the trade name "Parsol^® SLX" by DSM Nutritional Products.

4,4-Diarylbutadiene derivatives:

An examples of a suitable 4,4-diarylbutadiene derivative includes, but is not limited to, 1 -Dicarboxy(2,2'-dimethylpropyl)-4,4-diphenyl-butadiene.

Benzoxazole derivatives:

An example of suitable benzoxazole derivative includes, but is not limited to, 2,4-bis[5-(1 -dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2- ethylhexyl)imino-1 ,3,5-triazine sold under the name Uvasorb^® K2A by Sigma 3V, and mixtures thereof.

Preferably, the oil-soluble organic sunscreen ingredient will be chosen from butyl methoxydibenzoylmethane, ethylhexyl salicylate, ethylhexyl triazone, octocrylene, drometrizole trisiloxane, bis-ethylhexyloxyphenol methoxyphenyl triazine, and mixtures thereof.

The oil-soluble organic sunscreen ingredient is preferably present in the composition according to the invention in an amount of from about 3% to about 25% by weight, preferably in an amount of from about 5% to about 20% by weight, and most preferably about 7% to about 18% by weight, based on the total weight of the composition.

WATER-SOLUBLE ORGANIC SUNSCREEN INGREDIENT

The term "water-soluble organic sunscreen ingredient" means any organic compound for screening out UV radiation, which can be fully dissolved in molecular form or miscible in a liquid aqueous phase or which can be dissolved in colloidal form (for example in micellar form) in a liquid aqueous phase.

Non-limiting examples of water-soluble organic sunscreen ingredients useful in the invention include, for example, terephthalylidene dicamphor sulfonic acid (Ecamsule), phenylbenzimidazole sulfonic acid (Ensulizole), benzophenone-4, aminobenzoic acid (PABA), 4-Bis(polyethoxy)-para-aminobenzoic acid polyethoxyethyl ester (PEG-25 PABA), camphor benzalkonium methosulfate, methylene bis-benzotriazolyl tetramethylbutylphenol (Bisoctrizole), disodium phenyl dibenzimidazole tetrasulfonate (Bisdisulizole disodium), and tris-biphenyl triazine; their derivatives and corresponding salts; naphthalene bisimide derivatives such as those described in European patent application EP1990372 A2, the entire contents of which is hereby incorporated by reference; and cinnamido amine cationic quaternary salts and derivatives such as those described in United States Patent 5,601 ,81 1 , the entire contents of which is hereby incorporated by reference, and mixtures thereof.

The salts of the compounds that may be used according to the invention are chosen in particular from salts of alkali metals, for example sodium or potassium; salts of alkaline-earth metals, for example calcium, magnesium or strontium; metal salts, for example zinc, aluminium, manganese or copper; salts of ammonium of formula NH4+; quaternary ammonium salts; salts of organic amines, for instance salts of methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine, 2-hydroxyethylamine, bis(2-hydroxyethyl)amine or tris(2- hydroxyethyl)amine; lysine or arginine salts. Salts chosen from sodium, potassium, magnesium, strontium, copper, manganese or zinc salts are preferably used. The sodium salt is prefereably used.

Preferably, the water-soluble organic sunscreen ingredient will be chosen from terephthalylidene dicamphor sulfonic acid, methylene bis-benzotriazolyl tetramethylbutylphenol, and mixtures thereof.

The water-soluble organic sunscreen ingredient is preferably present in the composition according to the invention in an amount of from about 0.1 % to about 10% by weight, preferably in an amount of from about 0.5% to about 8% by weight, and most preferably about 1 % to about 7% by weight, based on the total weight of the composition.

SILICA-COATED TITANIUM DIOXIDE SUNSCREEN INGREDIENT

The term "silica-coated titanium dioxide sunscreen ingredient" means spherical beads which are formed by encapsulating titanium dioxide particles in silica.

Non-limiting examples of silica coated titanium dioxide sunscreen ingredients useful in the invention include, for example, titanium dioxide coated with silica, such as the product "Sunsil Tin50" from Sunjin Chemical known under the INCI name silica (and) titanium dioxide having a composition of silica:titanium dioxide of about 55:45 and having a particle size from about 2 microns to about 7 microns.

The silica-coated titanium dioxide sunscreen ingredient is preferably present in the composition according to the invention in an amount of from about 1 % to about 10% by weight, preferably in an amount of from about 2% to about 10% by weight, and most preferably about 5% to about 10% by weight, based on the total weight of the composition.

MATTIFYING POWDER

The term "mattifying powder" means a powder which absorbs sebum and provides a mattifying effect to the skin.

Non-limiting examples of mattifying powders useful in the invention include, for example, modified starches, polyamide powders, hydrophobic silica aerogel particles, acrylic polymer powders, elastomeric silicone powders, clays, and mixtures thereof.

Modified starches useful in the invention include, for example, those known under the INCI names aluminum starch octenylsuccinate, sodium starch octenylsuccinate, calcium starch octenylsuccinate, and mixtures thereof.

Modified starches are preferably present in the composition according to the invention in an amount of from about 0.01 % to about 10% by weight, preferably in an amount of from about 0.1 % to about 5% by weight, and most preferably about 0.5% to about 4% by weight, based on the total weight of the composition.

Polyamide powders useful in the invention include, for example, those known under the INCI name nylon-12, nylon-6, and mixtures thereof.

Polyamide powders are preferably present in the composition according to the invention in an amount of from about 0.01 % to about 10% by weight, preferably in an amount of from about 0.1 % to about 5% by weight, and most preferably about 0.5% to about 4% by weight, based on the total weight of the composition.

The term "hydrophobic silica" means any silica whose surface is treated with silylating agents, for example halogenated silanes such as alkylchlorosilanes, siloxanes, in particular dimethylsiloxanes such as hexamethyldisiloxane, or silazanes, so as to functionalize the OH groups with silyl groups Si-Rn, for example trimethylsilyl groups.

Hydrophobic silica aerogel particles useful in the invention are preferably particles surface-modiified with trimethylsilyl groups known under the INCI name silica silylate and include, for example, the aerogel sold under the trade name "VM-2260" or "VM-2270" by the company Dow Corning, the particles of which have a mean size of about 1000 microns and a specific surface area per unit of mass ranging from 600 to 800 m²/g. A preferred hydrophobic silica aerogel particle is the aerogel sold under the name "VM-2270", by the company Dow Corning, the particles of which have a mean size ranging from 5-15 microns and a specific surface area per unit of mass ranging from 600 to 800 m²/g.

Hydrophobic silica aerogel particles are preferably present in the composition according to the invention in an amount of from about 0.01 % to about 5% by weight, preferably in an amount of from about 0.1 % to about 5% by weight, and most preferably about 0.3% to 4% by weight, based on the total weight of the composition.

Acrylic polymer powders useful in the invention include, for example, acrylic polymer powders such as the product "Covabead" LH85 from Sensient known under the INCI name methyl methacrylate crosspolymer.

The acrylic polymer powder is preferably present in the composition according to the invention in an amount of from about 0.01 % to about 10% by weight, preferably in an amount of from about 0.1 % to about 5% by weight, and most preferably about 0.5% to about 4% by weight, based on the total weight of the composition.

Elastomeric silicone powders useful in the invention include, for example, a powders such as the products DC-9509 and DC-9506 sold by Dow Corning known under the INCI name dimethicone/vinyl dimethicone crosspolymer.

Clays useful in the invention include, for example, clays of the smectite family such as montmorillonites, hectorites, bentonites, beidellites and saponites, and also of the vermiculite, stevensite and chlorite families. Non-limiting examples of clays usefil in the invention include, for example, synthetic hectorites (also known as laponites), for instance the products sold by the company Laporte under the name Laponite XLG, Laponite RD and Laponite RDS (these products are sodium magnesium silicates and in particular sodium lithium magnesium silicates); bentonites, for instance the product sold under the name Bentone HC by the company Rheox; magnesium aluminium silicates, especially hydrated, for instance the product sold by the Vanderbilt Company under the name Veegum Ultra, or calcium silicates and especially the product in synthetic form sold by the company under the name Micro-cel C.

Most preferably, the mattifying powders will be chosen from aluminum starch octenylsuccinate, nylon-12, silica silylate, methyl methacrylate crosspolymer, and mixtures thereof.

The mattifying powders are preferably present in the composition according to the invention in an amount of from about 0.1 % to about 10% by weight, preferably in an amount of from about 0.5% to about 8% by weight, and most preferably about 2% to about 6% by weight, based on the total weight of the composition.

FATTY COMPOUNDS

The term "fatty compound" means a lipophilic compound which is in the form of a liquid or solid room temperature (25°C) under atmospheric pressure (760 mmHg). The fatty compound may be a non-polar oil such as a hydrocarbon oil, a silicone oil; a polar oil such as a plant or animal oil and an ester oil or an ether oil; a fatty alcohol, or a mixture thereof.

Non-limiting examples of plant oils useful in the invention include, for example, 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, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

Non-limiting examples of animal oils useful in the invention include, for example, squalene, squalane, and mixtures thereof.

Non-limiting examples of synthetic oils useful in the invention include, for example, alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.

Ester oils are preferably liquid esters of saturated or unsaturated, linear or branched C1 -C26 aliphatic monoacids or polyacids and of saturated or unsaturated, linear or branched C1 -C26 aliphatic monoalcohols or polyalcohols, the total number of carbon atoms of the esters being greater than or equal to 10.

Preferably, for the esters of monoalcohols, at least one from among the alcohol and the acid from which the esters of the invention are derived is branched.

Non-limiting examples of the ester oils useful in the invention include C12-C15 alkyl benzoate, ethyl palmitate, ethyl hexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate, 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 trilactate, glyceryl trioctanoate, trioctyldodecyl citrate, trioleyl citrate, neopentyl glycol diheptanoate, diethylene glycol diisononanoate, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, glyceryl tri(caprate/caprylate) and glyceryl tri(caprate/caprylate/linolenate), and mixtures thereof.

Non-limiting examples of silicone oils useful in the invention include, for example, volatile or non-volatile silicone oils, such as volatile or non-volatile polydimethylsiloxanes (PDMS) containing a linear or cyclic silicone chain, that are liquid or pasty at ambient temperature, in particular cyclopolydimethylsiloxanes (cyclomethicones) such as cyclohexasiloxane; polydimethylsiloxanes containing alkyl, alkoxy or phenyl groups that are pendent or at the end of the silicone chain, which groups have from 2 to 24 carbon atoms; phenyl silicones such as phenyl trimethicones, phenyl dimethicones, phenyltrimethylsiloxydiphenylsiloxanes, diphenyl dimethicones, diphenylmethyldiphenyltrisiloxanes, 2-phenylethyltrimethyl siloxysilicates, polymethylphenylsiloxanes, and mixtures thereof.

Non-limiting examples of hydrocarbon oils useful in the invention include, for example, undecane, dodecane, tridecane, isoparaffins, isohexadecane, isododecane and isodecane, liquid paraffins, liquid petroleum jelly, polydecenes hydrogenated polyisobutenes, synthetic wax, and mixtures thereof.

Non-limiting examples of fatty alcohols useful in the invention include, for example, fatty alcohols containing from 8 to 26 carbon atoms, such as cetyl alcohol, stearyl alcohol and a mixture thereof (cetylstearyl alcohol), octyldodecanol, 2-butyloctanol, 2- hexyldecanol, 2-undecylpentadecanol, oleyl alcohol linoleyl alcohol, and mixtures thereof.

Preferably, the fatty compounds will be chosen from C12-15 alkyl benzoate, isopropyl sarcosinate, stearyl alcohol, synthetic wax, dimethicone, and mixtures thereof.

The fatty compounds are preferably present in the composition according to the invention in an amount of from about 3% to about 15% by weight, preferably in an amount of from about 5% to about 13% by weight, and most preferably about 8% to about 12% by weight, based on the total weight of the composition.

EMULSIFIER SYSTEM

The emulsifier system of a composition according to the invention comprises one or more anionic surfactant, one or more non-ionic surfactant, and one or more co-emulsifying ingredient.

Non-limiting examples of anionic surfactants useful in the invention include, for example, carboxylates (sodium 2-(2-hydroxyalkyloxy)acetate), amino acid derivatives (N-acylglutamates, N-acylglycinates or acylsarcosinates), alkyl sulfates, alkyl ether sulfates and oxyethylenated derivatives thereof, sulfonates, isethionates and N-acylisethionates, taurates and N-acyl N-methyltaurates, sulfosuccinates, alkyl sulfoacetates, phosphates and alkyl phosphates, anionic derivatives of alkyl polyglycoside (acyl-D-galactoside uronate), and mixtures thereof.

The phosphate surfactant may be selected from monoalkyl phosphates, dialkyl phosphates, salts of monoalkyl phosphates, salts of dialkyl phosphates, and mixtures thereof. More preferably, the monoalkyl phosphates and dialkyl phosphates comprise one or more linear or branched and aliphatic and/or aromatic alkyl chains having from 8 to 22 carbon atoms. According to preferred embodiments, the phosphate surfactant(s) can be neutralized with organic or inorganic bases such as, for example, potassium hydroxide, sodium hydroxide, triethanolamine, arginine, lysine and N-methylglucamine to form the aforementioned salts.

Suitable examples of phosphate surfactants include, but are not limited to, monolauryl phosphate, such as the product sold under the name MAP 20^® by Kao Chemicals, the potassium salt of dodecyl phosphate, such as the mixture of mono- and diester (predominantly diester) sold under the name Crafol AP-31 ^® by Cognis, the octyl monoester and the octyl diester of phosphoric acid, such as the mixture sold under the name Crafol AP-20^® by Cognis, the ethoxylated (7 mol. of EO) 2- butyloctanol monoester and the ethoxylated (7 mol. of EO) 2-butyloctanol diester of phosphoric acid, such as the mixture sold under the name Isofol 12 7 EO-Phosphate Ester^® by Condea, the potassium or triethanolamine salts of monoalkyl (C12-C13) phosphate, such as the product sold under the references Arlatone MAP 230K-40^® and Arlatone MAP 230T-60^® by Uniqema, potassium lauryl phosphate, such as the product as a 40% aqueous solution sold under the name Dermalcare MAP XC99/09^® by Rhodia Chimie, potassium cetyl phosphate, such as the product sold under the name Arlatone MAP 160K^® by Uniqema or under the trade name Amphisol K by DSM Nutritional Products, and the mixtures of these surfactants.

Most preferably, the anionic surfactant is postassium cetyl phosphate. The anionic surfactant is preferably present in the composition according to the invention in an amount of from about 0.1 % to about 10% by weight, preferably in an amount of from about 0.3% to about 8% by weight, and most preferably about 0.5% to about 4% by weight, based on the total weight of the composition.

Non-limiting examples of non-ionic surfactants useful in the invention include, for example, oxyalkylenated (more particularly polyoxyethylenated) fatty acid esters of glycerol; oxyalkylenated fatty acid esters of sorbitan; oxyalkylenated (oxyethylenated and/or oxypropylenated) fatty acid esters, for instance the mixture PEG-100 Stearate and glyceryl stearate sold, for example, by the company ICI under the name ArlacelTM 165; oxyalkylenated (oxyethylenated and/or oxypropylenated) fatty alcohol ethers; sugar esters, for instance sucrose stearate; fatty alcohol ethers of sugars, especially alkyl polyglucosides (APGs) such as decyl glucoside and lauryl glucoside sold, for example, by the company Henkel under the respective names Plantaren^® 2000 and Plantaren^® 1200, cetostearyl glucoside optionally as a mixture with cetostearyl alcohol, sold, for example, under the name MontanovTM 68 by the company SEPPIC, under the name Tego^® care CG90 by the company Goldschmidt and under the name Emulgade^® KE3302 by the company Henkel, and also arachidyl glucoside, for example in the form of a mixture of arachidyl alcohol, behenyl alcohol and arachidyl glucoside, sold under the name MontanovTM 202 by the company SEPPIC. According to one particular embodiment of the invention, the mixture of the alkyl polyglucoside as defined above with the corresponding fatty alcohol may be in the form of a self-emulsifying composition as described, for example, in document WO-A-92/06778. Mention may also be made of lecithins and derivatives (e.g. Biophilic), sugar esters and sodium stearoyl lactylate.

Most preferably, the non-ionic surfactant is the mixture of PEG-100 stearate and glyceryl stearate.

The non-ionic surfactant is preferably present in the composition according to the invention in an amount of from about 0.1 % to about 10% by weight, preferably in an amount of from about 0.5% to about 8% by weight, and most preferably about 0.75% to about 4% by weight, based on the total weight of the composition.

Non-limiting examples of co-emulsifying ingredient useful in the invention include, for example, fatty acids chosen from C12-C22 higher fatty acids, such as stearic acid, myristic acid, oleic acid, linoleic acid, linolenic acid, lauric acid, palmitic acid, and mixtures thereof. Most preferably, the co-emulsifying ingredient is stearic acid.

The co-emulsifying ingredient is preferably present in the composition according to the invention in an amount of from about 0.2% to about 6% by weight, preferably in an amount of from about 0.5% to about 5% by weight, and most preferably about 1 % to about 2% by weight, based on the total weight of the composition.

WATER

The composition according to the invention comprises water. The water used may be sterile demineralized water and/or a floral water such as rose water, cornflower water, chamomile water or lime water, and/or a natural thermal or mineral water such as, for example: water from Vittel, water from the Vichy basin, water from Uriage, water from La Roche Posay, water from La Bourboule, water from Enghien- les-Bains, water from Saint Gervais-les-Bains, water from Neris-les-Bains, water from Allevar-les-Bains, water from Digne, water from Maizieres, water from Neyrac-les- Bains, water from Lons-le-Saunier, water from Eaux Bonnes, water from Rochefort, water from Saint Christau, water from Les Fumades, water from Tercis-les-Bains or water from Avene. Water may also comprise reconstituted thermal water, that is to say a water comprising trace elements such as zinc, copper, magnesium, etc., reconstituting the characteristics of a thermal water.

Water is preferably present in the composition according to the invention in an amount of from about 20% to about 60% by weight, preferably in an amount of from about 25% to about 50% by weight, and most preferably about 30% to about 40% by weight, based on the total weight of the composition.

WATER-SOLUBLE SOLVENT (OPTIONAL)

The compositions according to the invention optionally may comprise one or more water-soluble solvent. The term "water-soluble solvent" means a compound that is liquid at room temperature and water-miscible (miscibility with water of greater than 50% by weight at 25°C and atmospheric pressure).

Non-limiting examples of water-soluble solvents useful in the invention include, for example, lower monoalcohols containing from 1 to 5 carbon atoms, such as ethanol and isopropanol, glycols containing from 2 to 8 carbon atoms, such as ethylene glycol, propylene glycol, 1 ,3-butylene glycol, hexylene glycol, and dipropylene glycol, glycerin, and mixtures thereof.

The water-soluble solvent is preferably present in the composition according to the invention in an amount of from about 0.5% to about 20% by weight, preferably in an amount of from about 1 % to about 15% by weight, and most preferably about 5% to about 10% by weight, based on the total weight of the composition.

The compositions according to the invention may additionally comprise cosmetic adjuvants chosen from fragrances, pigments, chelating agents, softeners, antioxidants, opacifiers, stabilizers, moisturizing agents, vitamins, bactericides, preservatives, polymers, thickening agents, pH adjusters, or any other ingredient commonly used in cosmetics for this type of application.

Of course, a person skilled in the art will take care to choose this or these optional additional compounds so that the advantageous properties intrinsically attached to the composition in accordance with the invention are not, or not substantially, detrimentally affected by the envisaged addition or additions.

The amounts of these various constituents which can be present in the composition according to the invention are those conventionally used in the art.

The following examples serve to illustrate the invention without however exhibiting a limiting character. In these examples the amounts of the composition ingredients are given as weight percentages relative to the total weight of the composition.

EXAMPLES

Table 1. Examples

Inventive Comparative

Phase INCI US Name

Example 1 Example 2

A WATER 18.22 28.22

PENTYLENE GLYCOL 2.00 2.00

DISODIUM EDTA 0.10 0.10

TEREPHTHALYLIDENE DICAMPHOR

B 1 .00 1 .00

SULFONIC ACID

TRIETHANOLAMINE 0.60 0.60

C1 C12-15 ALKYL BENZOATE 7.50 7.50

ISOPROPYL LAUROYL SARCOSINATE 0.50 0.50

STEARIC ACID 0.80 0.80

PALMITIC ACID 0.66 0.66 Inventive Comparative

Phase INCI US Name

Example 1 Example 2

MYRISTIC ACID 0.05 0.05

GLYCERYL STEARATE (and) PEG-100

1 .30 1 .30 STEARATE (50:50)

STEARYL ALCOHOL 0.40 0.40

BUTYL

3.50 3.50

METHOXYDIBENZOYLMETHANE

OCTOCRYLENE 2.00 2.00

DROMETRIZOLE TRISILOXANE 0.50 0.50

ETHYLHEXYL TRIAZONE 2.50 2.50

BIS-ETHYLHEXYLOXYPHENOL

3.00 3.00 ETHOXYPHENYL TRIAZINE

ETHYLHEXYL SALICYLATE 4.50 4.50

SYNTHETIC WAX 1 .00 1 .00

POTASSIUM CETYL PHOSPHATE 1 .00 1 .00

PRESERVATIVE 0.30 0.30

GLYCERIN 2.00 2.00

SILICA (and) TITANIUM DIOXIDE (55:45)

C2 10.00 0

SUNSIL TIN 50

TITANIUM DIOXIDE (and) ALUMINUM

HYDROXIDE (and) STEARIC ACID

5.00 5.00 (83:9:8)

MICRO TITANIUM DIOXIDE MT-100 T V

C3 TRIETHANOLAMINE 0.65 0.65

PRESERVATIVE 0.60 0.60

ANTIOXIDANT 0.30 0.30

D WATER 14.93 14.93

METHYLENE BIS-BENZOTRIAZOLYL

1 .00 1 .00 TETRAMETHYLBUTYLPHENOL

POLYGLYCERYL-10 LAURATE 0.16 0.16

AMMONIUM

E 0.49 0.49

POLYACRYLOYLDIMETHYL TAURATE Inventive Comparative

Phase INCI US Name

Example 1 Example 2

HYDROXYPROPYL

0.10 0.10 METHYLCELLULOSE

DIMETHICONE 2.50 2.50

F NYLON-12 1 .00 1 .00

ALUMINUM STARCH

1 .72 1 .72 OCTENYLSUCCINATE

METHYL METHACRYLATE

1 .00 1 .00 CROSSPOLYMER

G ALCOHOL DENAT. 3.00 3.00

H SILICA SILYLATE 0.49 0.49

FRAGRANCE 0.50 0.50

TOTAL 100% 100%

In making Examples 1 and 2, the following procedure was used. The ingredients of phase C1 were combined in the main kettle and heated to 75°C with stirring. Phases C2 and C3 were added to the main kettle and stirring was continued until titanium dioxide (and) aluminum hydroxide (and) stearic acid was completely dispersed. The ingredients of phases A and B were combined in the annex and heated to 75°C with stirring. The contents of the annex were added to the main kettle and emulsified. The ingredients of phase D were added to the main kettle. Cooling of the main kettle was begun. When the contents of the main kettle reached, 40°C, the ingredients of phase E were added. The ingredients of phase F and phase H were added to the main kettle. When the contents of the main kettle reached 30°C, the ingredients of phase G were added. The contents of the kettle were homongenized.

Table 2. Sebum Assessment of Inventive Example 1

subjects remained in a temperature and humidity controlled room (21 °C ± 1 , 45% ± 5RH) for 15 minutes before product application. The product (300 mg) was applied on half face by the investigator. The total mass of sebum per unit of surface (g/cm²) was measured with the Sebumeter™ SM (Courage and Khazaka, Cologne, Germany). Two sebum measurements were taken on each side of the subject's forehead before (TO) and 10 minutes (T10) after formula application. Statistical analysis was performed using the program SPSS^® Statistics 20.0.

The results demonstrated that the composition of Example 1 significantly reduced the sebum level of the skin 10 minutes after product application.

COMPARATIVE TESTING

Dry touch has been identified as a key attribute for consumer perception of oil control. Brazilian consumers associate oil control as being a combination of both dry touch and shine. Even without a difference in shine, consumers perceive lower performance when they experience oily feel.

The compositions of Examples 1 and 2 were evaluated for the sensorial attributes of dry touch and shine. The results of this test are provided below in table 3.

Table 3. Evaluation of Sensorial Attributes

A trained expert beautician evaluated samples applied to the face of subjects having oily skin. Evaluation was performed after initial application (TO) and after 4 hours (T4h). The attributes of dry touch and shine were evaluated by touch and/or by view and quantified using a 6-point non-structured scale with 0 representing the least and 6 representing the most.

The results demonstrated that inventive Example 1 containing silica (and) titanium dioxide (Sunsil Tin50 from Sunjin Chemical) had a dryer touch at both TO and T4 compared to comparative Example 2 having no silica (and) titanium dioxide (Sunsil Tin50 from Sunjin Chemical). Therefore, inventive Example 1 has superior oil control performance compared to comparative Example 2.

Claims

SET OF CLAIMS

1 . A composition in the form of an oil-in-water emulsion comprising:

(a) one or more oil-soluble organic sunscreen ingredient;

(b) one or more water-soluble organic sunscreen ingredient;

(e) one or more fatty compound:

(f) an emulsifier system comprising:

(i) one or more anionic surfactant;

(ii) one or more non-ionic surfactant;

(iii) one or more co-emulsifying ingredient; and

(g) water.

2. A composition according to claim 1 wherein the oil-soluble organic sunscreen ingredient (a) is present in an amount from 3% to about 25% by weight, preferably in an amount of from 5% to 20% by weight, and most preferably 7% to 18% by weight, based on the total weight of the composition.

3. A composition according to any one of the preceding claims wherein the water-soluble organic sunscreen ingredient (b) is present in an amount from 0.1 % to 10% by weight, preferably in an amount of from 0.5% to 8% by weight, and most preferably 1 % to 7% by weight, based on the total weight of the composition.

4. A composition according to any one of the preceding claims wherein the silica-coated titanium dioxide sunscreen ingredient (c) is present in an amount from 1 % to 10% by weight, preferably in an amount of from 2% to 1 0% by weight, and most preferably 5% to 1 0% by weight, based on the total weight of the composition.

5. A composition according to any one of the preceding claims wherein the silica-coated titanium dioxide sunscreen ingredient (c) has the INCI name silica (and) titanium dioxide.

6. A composition according to any one of the preceding claims wherein the silica-coated titanium dioxide sunscreen ingredient (c) has a particle size from 2 microns to 7 microns.

7. A composition according to any one of the preceding claims wherein the mattifying powder (d) is present in an amount from 0.1 % to 10% by weight, preferably in an amount of from 0.5% to 8% by weight, and most preferably 2% to 6% by weight, based on the total weight of the composition.

8. A composition according to any one of the preceding claims wherein the fatty compound (e) is present in an amount from 3% to 15% by weight, preferably in an amount of from 5% to 13% by weight, and most preferably 8% to 12% by weight, based on the total weight of the composition.

9. A composition according to any one of the preceding claims wherein the emulsifier system (f) comprises the anionic surfactant (f) (i) in an amount from 0.1 % to 10% by weight, preferably in an amount of from 0.3% to 8% by weight, and most preferably 0.5% to 4% by weight, based on the total weight of the composition.

10. A composition according to any one of the preceding claims wherein the anionic surfactant (f)(i) is potassium cetyl phosphate.

1 1 . A composition according to any one of the preceding claims wherein the emulsifier system (f) comprises the non-ionic surfactant (f) (ii) in an amount from 0.1 % to 10% by weight, preferably in an amount of from 0.5% to 8% by weight, and most preferably 0.75% to 4% by weight, based on the total weight of the composition.

12. A composition according to any one of the preceding claims wherein the emulsifier system (f) comprises the co-emulsifying ingredient (f) (iii) in an amount from 0.1 % to 10% by weight, preferably in an amount of from 0.2% to 6% by weight, preferably in an amount of from 0.5% to 5% by weight, and most preferably about 1 % to 2% by weight, based on the total weight of the composition.

13. A composition according to any one of the preceding claims wherein the co-emulsifying ingredient (f)(iii) is stearic acid.

14. A composition in the form of an oil-in-water emulsion comprising: (a) 7% to 18% by weight, based upon the total weight of the composition, of one or more oil-soluble organic sunscreen ingredient;

(c) 5% to 10% by weight, based upon the total weight of the composition, of one or more silica-coated titanium dioxide sunscreen ingredient having a particle size from 2 microns to 7 microns; (d) 2% to 6% by weight, based upon the total weight of the composition, of one or more mattifying powder;

(f) an emulsifier system comprising:

(iii) 1 % to 2% by weight, based upon the total weight of the composition, by weight, based upon the total weight of the composition, of one or more co-emulsifying ingredient; and

15. A method of preventing and/or controlling skin oiliness comprising applying a composition according to any one of the preceding claims onto a surface of the human skin.