FR3151491A3 - STABLE UV PROTECTION COMPOSITION - Google Patents

Abstract

STABLE UV PROTECTION COMPOSITION The present invention relates to a composition comprising: (a) at least one amino acid surfactant; (b) at least one fatty acid polyglyceryl ester; (c) at least one UV filter; and (d) at least one fatty alcohol, wherein the HLB value of the (b) fatty acid polyglyceryl ester(s) is 6 or more, preferably 7 or more, and more preferably 8 or more, and the fatty acid moiety of the (b) fatty acid polyglyceryl ester comprises 16 carbon atoms or less, preferably 14 or less, and more preferably 12 or less. The composition according to the present invention is stable and can form a homogeneous film which provides good UV protection. Figure for abstract: none

Description

STABLE UV PROTECTION COMPOSITION

The present invention relates to a composition, preferably a cosmetic or dermatological composition, which is stable, comprising at least one UV filter.

STATE OF THE ART

Currently, one of the technical challenges in cosmetic fields is to provide a stable composition with high UV protection capacity as well as a soft or non-sticky texture during application.

Conventional sun care compositions with a high concentration of UV filter(s) for high UV protection performance must have a high concentration of surfactant(s) and ensure good stability of the compositions. However, such a high concentration of surfactant(s) tends to cause a heavy or sticky texture upon application.

DISCLOSURE OF THE INVENTION

A UV protection performance of a composition including one or more UV filters depends on the homogeneity of a film, including the UV filter(s), formed by the composition.

An objective of the present invention is to provide a stable composition which can provide a homogeneous film which provides good UV protection.

1. au moins un tensioactif acide aminé ;
2. au moins un ester de polyglycéryle d’acide gras ;
3. au moins un filtre UV ; et
4. au moins un alcool gras,

The above objective of the present invention can be achieved by a composition comprising:

1. at least one amino acid surfactant;
2. at least one polyglyceryl ester of fatty acid;
3. at least one UV filter; and
4. at least one fatty alcohol,

in which

the HLB value of the (b) polyglyceryl fatty acid ester(s) is 6 or more, preferably 7 or more, and more preferably 8 or more, and

the fatty acid moiety of the (b) fatty acid polyglyceryl ester comprises 16 or fewer carbon atoms, preferably 14 or fewer, and more preferably 12 or fewer.

The (a) amino acid surfactant may be selected from the compounds represented by the formula (A):
(HAS)

in which

Y' independently denotes a carboxylic acid group or an alkali salt of a carboxylic acid group such as a sodium salt of a carboxylic acid group,

j1, k1, j2 and k2 denote integers such that (j1, k1, j2, k2) = any one of (2,0,2,0), (2,0,0,2), (0,2,2,0) and (0,2,0,2), and

l denotes an integer from 6 to 16, preferably from 8 to 14, and more preferably from 10 to 12.

The (a) amino acid surfactant may be selected from the group consisting of sodium dilauramidoglutamide lysine, sodium dimyristoylglutamide lysine and sodium distearoylglutamide lysine, and mixtures thereof.

The amount of the (a) amino acid surfactant(s) in the composition according to the present invention may range from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

The (b) fatty acid polyglyceryl ester may be selected from the group consisting of PG2 laurate, PG4 caprate, PG5 laurate, PG6 dicaprate, PG6 caprylate, PG10 laurate, and mixtures thereof.

The amount of the (b) fatty acid polyglyceryl ester(s) in the composition according to the present invention may range from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 2% by weight, relative to the total weight of the composition.

(c) The UV filter may be chosen from organic UV filters, and preferably from the group consisting of butyl methoxydimenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, ethylhexyl triazone, drometrizole trisiloxane, ethylhexyl salicylate, octocrylene, homosalate and their mixture.

The amount of the (c) UV filter(s) in the composition according to the present invention may range from 1% to 30% by weight, preferably from 5% to 25% by weight, and more preferably from 10% to 20% by weight, relative to the total weight of the composition.

The (d) fatty alcohol may be selected from the group consisting of cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol and mixtures thereof.

The amount of the fatty alcohol(s) in the composition according to the present invention may range from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 2% by weight, relative to the total weight of the composition.

The composition according to the present invention may further comprise (e) water.

The amount of (e) water in the composition according to the present invention may range from 40% to 70% by weight, preferably from 45% to 65% by weight, and more preferably from 50% to 60% by weight, relative to the total weight of the composition.

The composition according to the present invention may be in the form of an H/W emulsion.

The composition according to the present invention may be a cosmetic composition, preferably a cosmetic composition for a keratinous substance and more preferably a cosmetic composition for the skin.

The present invention also relates to a cosmetic method for treating a keratinous substance, comprising the step of applying the composition according to the present invention.

After careful research, the inventors discovered that it is possible to provide a stable composition that can provide a homogeneous film that provides good UV protection.

1. au moins un tensioactif acide aminé ;

1. au moins un ester de polyglycéryle d’acide gras ayant une valeur HLB de 8 ou plus ;
2. au moins un filtre UV ; et
3. au moins un alcool gras,

Thus, one aspect of the present invention is a composition, comprising:

1. at least one amino acid surfactant;

1. at least one polyglyceryl ester of fatty acid having an HLB value of 8 or greater;
2. at least one UV filter; and
3. at least one fatty alcohol,

in which

the HLB value of the (b) polyglyceryl fatty acid ester(s) is 6 or more, preferably 7 or more, and more preferably 8 or more, and

the fatty acid moiety of the (b) fatty acid polyglyceryl ester comprises 16 or fewer carbon atoms, preferably 14 or fewer, and more preferably 12 or fewer.

The composition according to the present invention protects against UV or is capable of protecting against UV rays, because it includes (c) at least one UV filter.

The composition according to the present invention can form a homogeneous or uniform film including the (c) UV filter(s) which can provide a homogeneous or uniform distribution of the (c) UV filter(s), which can provide good UV protection.

The composition according to the present invention is stable. The term “stable” herein means that the appearance of a composition does not change, for example, as a result of aggregation or phase separation. It is preferable that the composition according to the present invention is stable over a long period of time.

Also, the composition according to the present invention can provide a good texture, such as a soft or non-sticky feeling to the touch during application. In other words, the composition according to the present invention is not sticky when applied to a keratinous substance such as the skin. The term “sticky” herein means a property that gives a sticky feeling to the skin.

In summary, the composition according to the present invention is stable and can form a homogeneous or uniform film which can provide good UV protection. In addition, the composition according to the present invention can provide a good texture such as a soft or non-sticky touch feeling during application.

Thus, the composition according to the present invention is suitable for cosmetic products, in particular for sun care cosmetic products such as a skin care cream.

The composition according to the present invention will be explained in more detail below.

[Amino acid surfactant]

The composition according to the present invention comprises (a) at least one amino acid surfactant. Only one type of amino acid surfactant may be used, but two or more different types of amino acid surfactants may be used in combination.

The (a) amino acid surfactant is an anionic surfactant based on an amino acid or its derivatives. Typically, the (a) amino acid surfactant is an anionic surfactant comprising at least one amino moiety and at least one carboxylic acid moiety that is in the form of a carboxylate. The (a) amino acid surfactant may have two or more amino moieties and/or two or more carboxylic acid moieties that are in the form of carboxylates.

The (a) amino acid surfactant may preferably be selected from amino acid derivatives. The amino acid derivative may more preferably be selected from amino acid and N-acylated amino acid salts, for example alkali metal salts and alkaline earth metal salts of amino acids and N-acylated amino acids, such as sodium salts, potassium salts, magnesium salts and calcium salts of amino acids and N-acylated amino acids.

The acyl group which forms the N-acyl moiety of the amino acid derivatives may be a C ₁ -C ₃₀ acyl group, preferably a C ₆ -C ₂₈ acyl group, and more preferably a C ₁₂ -C ₂₄ acyl group.

The (a) amino acid surfactant may even more preferably be selected from the group consisting of glutamates, N-acylated glutamates, aspartates, N-acylated aspartates and their salts.

• les sarcosinates, tels que les N-acyl sarcosinates (sels), par exemple, le lauroyl sarcosinate de sodium, vendu sous le nom Nikkol Sarcosinate^TMLN par Nikko Chemicals ou vendu sous le nom Pureact^TMLSR par Innospec Performance Chemicals Europe Limited ; le myristoyl sarcosinate de sodium, vendu sous le nom Nikkol Sarcosinate^TMMN par Nikko Chemicals ; et le palmitoyl sarcosinate de sodium, vendu sous le nom Nikkol Sarcosinate^TMPN par Nikko Chemicals ;
• les alaninates, tels que les N-acyl alaninates (sels), par exemple le N-lauroyl-N-méthylamidopropionate de sodium, vendu sous le nom Sodium Nikkol Alaninate^TMLN 30 par Nikko Chemicals ou vendu sous le nom Alanone® ALE par Kawaken ; les cocoyl alaninates de sodium, vendus sous le nom Amilite® ACS-12 par Ajinomoto ; et la N-lauroyl-N-méthylalanine de triéthanolamine, vendue sous le nom Alanone® ALTA par Kawaken ;
• les glutamates, tels que les N-acyl glutamates (sels), par exemple, le stéaroyl glutamate de sodium, vendu sous le nom Eumulgin® SR par BASF Japan ; le lauroyl glutamate de sodium, vendu sous le nom Plantapon® Amino SLG-P par BASF Japan ; le monococoyl glutamate de triéthanolamine, vendu sous le nom Amisoft® CT-12 par Ajinomoto ; le lauroyl glutamate de triéthanolamine, vendu sous le nom Amisoft® LT-12 par Ajinomoto; et le stéaroyl glutamate disodique, vendu sous le nom Amisoft® HS-21P par Ajinomoto;
• les aspartates, tels que les N-acyl aspartates (sels), par exemple, le N-lauroyl aspartate disodique, vendu sous le nom AminoFoamer® FLMS-P1 par Asahi Kasei ; et un mélange de N-lauroyl aspartate de triéthanolamine et de N-myristoyl aspartate de triéthanolamine, vendu sous le nom AminoFoamer® FCMT-L par Asahi Kasei ; et
• les glycinates, tels que les N-acyl glycinates (sels), par exemple le N-cocoyl glycinate de sodium, vendu sous le nom Amilite® GCS-12K ; et le N-cocoyl glycinate de potassium, vendu sous le nom Amilite® GCK-12K par Ajinomoto.

Examples of the (a) amino acid surfactant include, but are not limited to:

• sarcosinates, such as N-acyl sarcosinates (salts), for example, sodium lauroyl sarcosinate, sold as Nikkol Sarcosinate ^TM LN by Nikko Chemicals or sold as Pureact ^TM LSR by Innospec Performance Chemicals Europe Limited; sodium myristoyl sarcosinate, sold as Nikkol Sarcosinate ^TM MN by Nikko Chemicals; and sodium palmitoyl sarcosinate, sold as Nikkol Sarcosinate ^TM PN by Nikko Chemicals;
• alaninates, such as N-acyl alaninates (salts), for example sodium N-lauroyl-N-methylamidopropionate, sold as Sodium Nikkol Alaninate ^TM LN 30 by Nikko Chemicals or sold as Alanone® ALE by Kawaken; sodium cocoyl alaninates, sold as Amilite® ACS-12 by Ajinomoto; and triethanolamine N-lauroyl-N-methylalanine, sold as Alanone® ALTA by Kawaken;
• glutamates, such as N-acyl glutamates (salts), for example, sodium stearoyl glutamate, sold as Eumulgin® SR by BASF Japan; sodium lauroyl glutamate, sold as Plantapon® Amino SLG-P by BASF Japan; triethanolamine monococoyl glutamate, sold as Amisoft® CT-12 by Ajinomoto; triethanolamine lauroyl glutamate, sold as Amisoft® LT-12 by Ajinomoto; and disodium stearoyl glutamate, sold as Amisoft® HS-21P by Ajinomoto;
• aspartates, such as N-acyl aspartates (salts), for example, disodium N-lauroyl aspartate, sold as AminoFoamer® FLMS-P1 by Asahi Kasei; and a mixture of triethanolamine N-lauroyl aspartate and triethanolamine N-myristoyl aspartate, sold as AminoFoamer® FCMT-L by Asahi Kasei; and
• glycinates, such as N-acyl glycinates (salts), for example sodium N-cocoyl glycinate, sold as Amilite® GCS-12K; and potassium N-cocoyl glycinate, sold as Amilite® GCK-12K by Ajinomoto.

It is preferable that the (a) amino acid surfactant is selected from amino acid gemini surfactants which are amino acid-based gemini surfactants.

Gemini surfactants or dimeric surfactants are well known. For a detailed description of the various chemical structures and their physicochemical properties, reference may be made to the following publications:

Milton J. Rosen, Gemini Surfactants, Properties of surfactant molecules with two hydrophilic groups and two hydrophobic groups, Cosmetics & Toiletries magazine, Vol. 113, December 1998, pp. 49-55; And

Milton J. Rosen, Recent Developments in Gemini Surfactants, Allured's Cosmetics & Toiletries magazine, July 2001, Vol. 116, no. 7, pp. 67-70.

The gemini amino acid surfactant is anionic and comprises a plurality of hydrophobic moieties and a plurality of hydrophilic moieties.

The amino acid gemini surfactant may be selected from compounds with two or more fatty amide groups (hereinafter, it may be referred to as an “amide compound”). The amide compound may be represented by the following formula (A):
(HAS)

in which

Y' independently denotes a carboxylic acid group or an alkali salt of a carboxylic acid group such as a sodium salt of a carboxylic acid group,

j1, k1, j2 and k2 denote an integer such that (j1, k1, j2, k2) = any one of (2,0,2,0), (2,0,0,2), (0,2,2,0) and (0,2,0,2), and

l denotes an integer from 6 to 16, preferably from 8 to 14, and more preferably from 10 to 12.

Preferably, in formula (A), l denotes an integer from 8 to 12, j1 = j2 = 0 and k1 = k2 = 2.

Most preferably, in formula (A), Y' is -COONa, j1 = j2 = 0, k1 = k2 = 2; and l = 10.

As the above amide compound represented by formula (A), sodium dilauramidoglutamide lysine, sodium dimyristoylglutamide lysine and sodium distearoylglutamide lysine can be mentioned. Sodium dilauramidoglutamide lysine is particularly preferable. Sodium dilauramidoglutamide lysine is marketed as PELLICER L-30 by Asahi Chemicals in aqueous solution at a concentration of 29% by weight relative to the total weight of the aqueous solution or PELLICER LB-30G by Asahi Chemicals in aqueous solution at a concentration of 27.3% by weight relative to the total weight of the aqueous solution.

The above amide compound represented by formula (A) can be prepared, for example, by reacting a long-chain acidic n-acyl amino acid anhydride with a basic amino acid, such as lysine, in water and/or a mixed solvent of water and organic solvent(s), or in an inert organic solvent(s) such as tetrahydrofuran, benzene, toluene, xylene tetrachloromethane, chloroform, acetone or the like, or without any solvent, at -5°C to 200°C, preferably 5°C to 100°C, and more preferably 0°C to 60°C.

Thus, the gemini amino acid surfactant may be an N-acylglutamate/amino acid derivative, preferably a dipeptide of two N-acylglutamates and a basic amino acid such as lysine.

The amount of the (a) amino acid surfactant(s) in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more and, more preferably 0.1% by weight or more, relative to the total weight of the composition.

Furthermore, the amount of the (a) amino acid surfactant(s) in the composition according to the present invention may be 10% by weight or less, preferably 5% by weight or less, and more preferably 1% by weight or less, relative to the total weight of the composition.

Thus, the amount of the (a) amino acid surfactant(s) in the composition according to the present invention can range from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition.

[Polyglyceryl ester of fatty acid]

The composition according to the present invention comprises (b) at least one fatty acid polyglyceryl ester with specific conditions. Only one type of fatty acid polyglyceryl ester may be used, but two or more different types of such fatty acid polyglyceryl esters may be used in combination.

The (b) fatty acid polyglyceryl ester used for the present invention has an HLB value of 6 or more, preferably 7 or more, and more preferably 8 or more.

The (b) fatty acid polyglyceryl ester used for the present invention may have an HLB value of 18 or less, preferably 17 or less, and more preferably 16 or less.

Thus, the (b) fatty acid polyglyceryl ester used for the present invention may have an HLB value of 6 to 18, preferably 7 to 17, and more preferably 8 to 16.

If two or more (b) fatty acid polyglyceryl esters are used, the HLB value is determined by the weighted average of the HLB values of all (b) fatty acid polyglyceryl esters.

The fatty acid moiety of the (b) fatty acid polyglyceryl ester used for the present invention comprises 16 or fewer carbon atoms, preferably 14 or fewer, and more preferably 12 or fewer. If the (b) fatty acid polyglyceryl ester has two or more fatty acid moieties, each of the fatty acid moieties comprises 16 or fewer carbon atoms, preferably 14 or fewer, and more preferably 12 or fewer.

The fatty acid moiety of the (b) fatty acid polyglyceryl ester used for the present invention may comprise 4 or more carbon atoms, preferably 5 or more, and more preferably 6 or more. If the (b) fatty acid polyglyceryl ester has two or more fatty acid moieties, each of the fatty acid moieties may comprise 4 or more carbon atoms, preferably 5 or more, and more preferably 6 or more.

Thus, the fatty acid moiety of the (b) fatty acid polyglyceryl ester used for the present invention may comprise from 4 to 16 carbon atoms, preferably from 5 to 14 carbon atoms, and more preferably from 6 to 12 carbon atoms. If the (b) fatty acid polyglyceryl ester has two or more fatty acid moieties, each of the fatty acid moieties may comprise from 4 to 16 carbon atoms, preferably from 5 to 14 carbon atoms, and more preferably from 6 to 12 carbon atoms.

The above (b) fatty acid polyglyceryl ester used for the present invention (hereinafter, simply referred to as (b) fatty acid polyglyceryl ester) can function as a surfactant, especially a nonionic surfactant.

The (b) fatty acid polyglyceryl ester may be selected from mono, di, tri esters and higher esters of one or more saturated or unsaturated fatty acids.

The fatty acid for the fatty acid moiety or fatty acid moieties of the (b) fatty acid polyglyceryl ester may be saturated or unsaturated, and may be selected from the group consisting of caprylic acid, capric acid, lauric acid, myristic acid, stearic acid, isostearic acid, oleic acid, and linoleic acid, preferably selected from the group consisting of caprylic acid, capric acid, lauric acid, and myristic acid, and more preferably selected from the group consisting of caprylic acid, capric acid, and lauric acid.

It is preferable that the (b) fatty acid polyglyceryl ester comprises from 2 to 14 glycerol units, preferably from 2 to 12 glycerol units, and more preferably from 2 to 10 glycerol units.

The (b) fatty acid polyglyceryl ester(s) may be selected from the group consisting of PG2 sesquicaprylate (HLB: about 8), PG2 caprate (HLB: 9.5), PG2 laurate (HLB: 8.5), PG3 caprate (HLB: about 14), PG4 caprylate (HLB: 14), PG4 caprate (HLB: 14), PG4 oleate (HLB: 8.8), PG4 laurate (HLB: 10.3), PG4 isostearate (HLB: 8.2), PG5 myristate (HLB: 15.4), PG5 stearate (HLB: 15), PG5 oleate (HLB: 12.2), PG5 laurate (HLB: 11), PG6 caprate (HLB: : 13.1), PG6 dicaprate (HLB: 10), PG6 caprylate (HLB: 15), PG6 laurate (HLB: 14.1), PG6 dioleate (HLB: 9.8), PG6 isostearate (HLB: 10.8), PG6 distearate (HLB: 8), PG10 laurate (HLB: 16), PG10 myristate (HLB: 14.9), PG10 stearate (HLB: 14.1), PG10 isostearate (HLB: 13.7), PG10 oleate (HLB: 13.0), PG10 trilaurate (HLB: 10.4), PG10 distearate (HLB: about 9), PG10 tristearate (HLB: 8), PG10 diisostearate (HLB: 10), PG10 triisostearate (HLB: 8), PG10 dioleate (HLB: about 11), PG10 cocoate (HLB: 16), PG10 dicocoate (HLB: 12), PG10 tricocoate (HLB: 9), and mixtures thereof. “PG” is an abbreviation for polyglyceryl.

It may be preferable that the (b) fatty acid polyglyceryl ester(s) may also be selected from the group consisting of PG2 laurate (HLB: 8.5), PG4 caprate (HLB: 14), PG5 laurate (HLB: 11), PG6 dicaprate (HLB: 10), PG6 caprylate (HLB: 15), PG10 laurate (HLB: 16), and mixtures thereof.

The amount of the (b) fatty acid polyglyceryl ester(s) in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, relative to the total weight of the composition.

Furthermore, the amount of the (b) fatty acid polyglyceryl ester(s) in the composition according to the present invention may be 10% by weight or less, preferably 5% by weight or less, and more preferably 2% by weight or less, relative to the total weight of the composition.

The amount of the (b) fatty acid polyglyceryl ester(s) in the composition according to the present invention may range from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, more preferably from 0.1% to 2% by weight, relative to the total weight of the composition.

[UV filter]

The composition according to the present invention comprises (c) at least one UV filter. Two or more different types of (c) UV filters may be used in combination. Thus, a single type of (c) UV filter or a combination of different types of (c) UV filters may be used.

There is no limit on the type of the (c) UV filter. The (c) UV filter can be selected from inorganic UV filters, organic UV filters and their mixtures. It is preferable that the (c) UV filter is selected from organic UV filters.

The amount of the (c) UV filter(s) in the composition according to the present invention may be 1% by weight or more, preferably 5% by weight or more, and more preferably 10% by weight or more, relative to the total weight of the composition.

Furthermore, the amount of the (c) UV filter(s) in the composition according to the present invention may be 30% by weight or less, preferably 25% by weight or less, and more preferably 20% by weight or less, relative to the total weight of the composition.

The amount of the (c) UV filter(s) in the composition according to the present invention may range from 1% to 30% by weight, preferably from 5% to 25% by weight, more preferably from 10% to 20% by weight, relative to the total weight of the composition.

(Inorganic UV Filter)

(c) The UV filter may be selected from inorganic UV filters. If two or more inorganic UV filters are used, they may be the same or different.

The inorganic UV filter used for the present invention may be active in the UV-A and/or UV-B region. The inorganic UV filter may be hydrophilic and/or lipophilic. The inorganic UV filter is preferably insoluble in solvents such as water and ethanol commonly used in cosmetics.

It is preferable that the inorganic UV filter is in the form of a fine particle such that the average particle diameter (primary) thereof ranges from 1 nm to 50 µm, preferably from 5 nm to 500 nm, and more preferably from 10 nm to 200 nm. The average particle size (primary) or the average particle diameter (primary) is here an arithmetic mean diameter.

The inorganic UV filter can be selected from the group consisting of metal oxides which may be coated or not, and their mixtures.

Preferably, the inorganic UV filter may be chosen from pigments (average size of primary particles: generally from 5 nm to 50 nm, preferably from 10 nm to 50 nm) formed from metal oxides, such as, for example, pigments formed from titanium oxide (amorphous or crystalline in rutile and/or anatase form), iron oxide, zinc oxide, zirconium oxide or cerium oxide, which are all UV photoprotective agents well known as such. Preferably, the inorganic UV filter is chosen from titanium oxide, zinc oxide, and more preferably titanium oxide.

The inorganic UV filter may be coated or uncoated. The inorganic UV filter may have at least one coating. The coating may comprise at least one compound selected from the group consisting of alumina, silica, aluminum hydroxide, silicones, silanes, fatty acids or salts thereof (such as sodium, potassium, zinc, iron or aluminum salts), fatty alcohols, lecithin, amino acids, polysaccharides, proteins, alkanolamines, waxes such as beeswax, (meth)acrylic polymers, organic UV filters and (per)fluorinated compounds.

It is preferable that the coating includes at least one organic UV filter. As an organic UV filter in the coating, a dibenzoylmethane derivative such as butyl methoxydibenzoylmethane (Avobenzone) and 2,2'-Methylenebis[6-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-Tetramethyl-Butyl)Phenol] (Methylene Bis-Benzotriazolyl tetramethylbutylphenol) marketed under the name “TINOSORB M” by BASF may be preferable.

As is known, the silicones in the coating(s) may be organosilicon polymers or oligomers comprising a linear or cyclic and branched or crosslinked structure, of variable molecular weight, obtained by polymerization and/or polycondensation of suitable functional silanes and essentially composed of repeating main units in which the silicon atoms are linked to each other by oxygen atoms (siloxane bond), optionally substituted hydrocarbon radicals being directly linked to said silicon atoms via a carbon atom.

The term "silicones" also includes the silanes necessary for their preparation, in particular alkylsilanes.

The silicones used for the coating(s) may preferably be selected from the group consisting of alkylsilanes, polydialkylsiloxanes and polyalkylhydrosiloxanes. Even more preferably, the silicones are selected from the group consisting of octyltrimethylsilanes, polydimethylsiloxanes and polymethylhydrosiloxanes.

Of course, inorganic UV filters consisting of metal oxides may, before their treatment with silicones, have been treated with other surfactants, in particular with cerium oxide, alumina, silica, aluminium compounds, silicon compounds or mixtures thereof.

The coated inorganic UV filter may have been prepared by subjecting the inorganic UV filter to one or more surface treatments of a chemical, electronic, mechanochemical and/or mechanical nature with any of the compounds described above, as well as polyethylenes, metal alkoxides (titanium or aluminum alkoxides), metal oxides, sodium hexametaphosphate, and those shown, for example, in Cosmetics & Toiletries, February 1990, Vol. 105, pp. 53-64.

Coated inorganic UV filters can be coated titanium oxides:

silica, such as Ikeda's "Sunveil" and Sunjin Chemical's "Sunsil TIN 50";

silica and iron oxide, such as Ikeda's "Sunveil F" product;

silica and alumina, such as the products “Microtitanium Dioxide MT 500 SA” from Tayca, “Tioveil” from Tioxide, and “Mirasun TiW 60” from Rhodia;

alumina, such as Ishihara’s “Tipaque TTO-55 (B)” and “Tipaque TTO-55 (A)”, and Kemira’s “UVT 14/4”;

alumina and aluminum stearate, such as Tayca’s “Microtitanium Dioxide MT 100 T, MT 100 TX, MT 100 Z or MT-01”, Uniqema’s “Solaveil CT-10 W” and “Solaveil CT 100”, and Merck’s “Eusolex T-AVO”;

alumina and aluminum laurate, such as Tayca’s “Microtitanium Dioxide MT 100 S” product;

iron oxide and iron stearate, such as the product “Microtitanium Dioxide MT 100 F” from Tayca;

zinc oxide and zinc stearate, such as Tayca's product “BR351”;

of silica and alumina and treated with silicone, such as the products “Microtitanium Dioxide MT 600 SAS”, “Microtitanium Dioxide MT 500 SAS” and “Microtitanium Dioxide MT 100 SAS” from Tayca;

of silica, alumina and aluminum stearate and treated with silicone, such as the product “STT-30-DS” from Titan Kogyo;

silica and treated with a silicone, such as the product “UV-Titan X 195” from Kemira;

alumina and treated with silicone, such as the products “Tipaque TTO-55 (S)” from Ishihara or “UV Titan M 262” from Kemira;

triethanolamine, such as Titan Kogyo's product “STT-65-S”;

stearic acid, such as Ishihara's "Tipaque TTO-55 (C)" or

sodium hexametaphosphate, such as the product “Microtitanium Dioxide MT 150 W” from Tayca.

Other silicone-treated titanium oxide pigments are preferably octyltrimethylsilane-treated TiO ₂ with an average individual particle size of 25 and 40 nm, such as that marketed under the trademark "T 805" by Degussa Silices, polydimethylsiloxane-treated TiO ₂ with an average individual particle size of 21 nm, such as that marketed under the trademark "70250 Cardre UF TiO ₂ Si ₃ " by Cardre, and polydimethylhydrosiloxane-treated anatase/rutile TiO ₂ with an average individual particle size of 25 nm, such as that marketed under the trademark "Microtitanium Dioxide USP carbonate Hydrophobic" by Color Techniques.

Preferably, the following coated _TiO2 can be used as a coated inorganic UV filter:

stearic acid (and) aluminum hydroxide (and) TiO ₂ , such as Tayca's product “MT-100 TV”, with an average primary particle diameter of 15 nm;

dimethicone (and) stearic acid (and) aluminum hydroxide (and) TiO ₂ , such as the product “SA-TTO-S4” from Miyoshi Kasei, with an average primary particle diameter of 15 nm;

silica (and) TiO ₂ , such as Tayca's product “MT-100 WP”, with an average primary particle diameter of 15 nm;

dimethicone (and) silica (and) aluminum hydroxide (and) TiO ₂ , such as Tayca's product “MT-Y02” and “MT-Y-110 M3S”, with an average primary particle diameter of 10 nm;

dimethicone (and) aluminum hydroxide (and) TiO ₂ , such as the product “SA-TTO-S3” from Miyoshi Kasei, with an average primary particle diameter of 15 nm;

dimethicone (and) alumina (and) TiO ₂ , such as the product “UV TITAN M170” from Sachtleben, with an average primary particle diameter of 15 nm and

silica (and) aluminum hydroxide (and) alginic acid (and) TiO ₂ , such as Tayca's product “MT-100 AQ”, with an average primary particle diameter of 15 nm.

In terms of UV filtering ability, _TiO2 coated with at least one organic UV filter is preferable. For example, avobenzone (and) stearic acid (and) aluminum hydroxide (and) _TiO2 , such as Tayca's product "HXMT-100ZA", with an average primary particle diameter of 15 nm, can be used.

Uncoated titanium oxide pigments are, for example, marketed by Tayca under the brand names “Microtitanium Dioxide MT500B” or “Microtitanium Dioxide MT600B”, by Degussa under the brand name “P 25”, by Wacker under the brand name “Transparent Titanium Oxide PW”, by Miyoshi Kasei under the brand name “UFTR”, by Tomen under the brand name “ITS”, and by Tioxide under the brand name “Tioveil AQ”.

Uncoated zinc oxide pigments are, for example:

those marketed under the brand name “Z-cote” by Sunsmart;

those marketed under the brand name “Nanox” by Elementis and

those marketed under the brand name “Nanogard WCD 2025” by Nanophase Technologies.

Coated zinc oxide pigments are, for example:

those marketed under the brand name “Oxide Zinc CS-5” by Toshiba (ZnO coated with polymethylhydrosiloxane);

those marketed under the brand name “Nanogard Zinc Oxide FN” by Nanophase Technologies (in 40% dispersion in _C12 - _C15 alkyl benzoate, Finsolv TN);

those marketed under the brand name “Daitopersion Zn-30” and “Daitopersion Zn-50” by Daito (dispersions in oxyethylenated polydimethylsiloxane/cyclopolymethylsiloxane comprising 30% or 50% of zinc nanooxides coated with silica and polymethylhydrosiloxane);

those marketed under the brand name “NFD Ultrafine ZnO” by Daikin (ZnO coated with perfluoroalkyl phosphate and a perfluoroalkylethyl copolymer dispersed in cyclopentasiloxane);

those marketed under the brand name “SPD-Z1” by Shin-Etsu (ZnO coated with a silicone-grafted acrylic polymer dispersed in cyclodimethylsiloxane);

those marketed under the brand name “Escalol Z100” by ISP (ZnO treated with alumina dispersed in an ethylhexyl methoxycinnamate/PVP-hexadecene/methicone copolymer mixture);

those marketed under the brand name “Fuji ZnO-SMS-10” by Fuji Pigment (ZnO coated with silica and polymethylsilsesquioxane); and those marketed under the brand name “Nanox Gel TN” by Elementis (ZnO dispersed at 55% in C ₁₂ -C ₁₅ alkyl benzoate with polycondensate of hydroxystearic acid).

Uncoated cerium oxide pigments are marketed, for example, under the brand name “Colloidal Cerium Oxide” by Rhone-Poulenc.

Uncoated iron oxide pigments are, for example, marketed by Arnaud under the brand names “Nanogard WCD 2002 (FE 45B)”, “Nanogard Iron FE 45 BL AQ”, “Nanogard FE 45R AQ” and “Nanogard WCD 2006 (FE 45R)”, or by Mitsubishi under the brand name “TY-220”.

Coated iron oxide pigments are, for example, marketed by Arnaud under the brands “Nanogard WCD 2008 (FE 45B FN)”, “Nanogard WCD 2009 (FE 45B 556)”, “Nanogard FE 45 BL 345” and “Nanogard FE 45 BL” or by BASF under the brand “Transparent iron oxide”.

Also exemplified are mixtures of metal oxides, in particular titanium dioxide and cerium dioxide, including a mixture of equal weights of silica-coated titanium dioxide and silica-coated cerium dioxide marketed by Ikeda under the brand name “Sunveil A”, as well as a mixture of titanium dioxide and zinc dioxide coated with alumina, silica and silicone, such as the product “M 261” marketed by Kemira, or coated with alumina, silica and glycerol, such as the product “M 211” marketed by Kemira.

Coated inorganic UV filters are preferable, since the UV filtering effects of the inorganic UV filters can be enhanced. In addition, the coating(s) can help to uniformly or homogeneously disperse the UV filters in the composition according to the present invention.

(Organic UV filter)

(c) The UV filter may be selected from organic UV filters. If two or more organic UV filters are used, they may be the same or different.

The organic UV filter may be hydrophobic or water-insoluble. The organic UV filter may function as an oily ingredient. Thus, the organic UV filter may form discontinuous or internal phases of the composition according to the present invention, if the composition according to the present invention is in the form of, for example, an O/W emulsion.

The organic UV filter can be active in the UV-A and/or UV-B region. The organic UV filter can be lipophilic or oil-soluble.

The organic UV filter can be solid or liquid. The terms “solid” and “liquid” mean a substance without fluidity and a substance with fluidity, respectively, at 25 °C under 1 atm.

The organic UV filter may be selected from the group consisting of anthranilic compounds; dibenzoylmethane compounds; cinnamic compounds; salicylic compounds; camphor compounds; benzophenone compounds; β,β-diphenylacrylate compounds; triazine compounds; benzotriazole compounds; benzalmalonate compounds; benzimidazole compounds; imidazoline compounds; bis-benzoazolyl compounds; p-aminobenzoic acid (PABA) compounds; methylenebis(hydroxyphenylbenzotriazole) compounds; benzoxazole compounds; screen polymers and screen silicones; α-alkylstyrene-derived dimers; 4,4-diarylbutadiene compounds; guaiazulene and its derivatives; rutin and its derivatives; and mixtures thereof.

• Composés anthraniliques : Menthyl anthranilate, commercialisé sous la marque « Neo Heliopan MA » par Haarmann et Reimer.
• Composés dibenzoylméthane : Butyl methoxydibenzoylmethane, commercialisé notamment sous la marque « Parsol 1789 » par Hoffmann-La Roche ; et isopropyl dibenzoylmethane.
• Composés cinnamiques : Ethylhexyl methoxycinnamate, commercialisé notamment sous la marque « Parsol MCX » par Hoffmann-La Roche ; isopropyl methoxycinnamate ; isopropoxy methoxycinnamate ; isoamyl methoxycinnamate, commercialisé sous la marque « Neo Heliopan E 1000 » par Haarmann et Reimer ; cinoxate (2-ethoxyethyl-4-methoxycinnamate) ; DEA methoxycinnamate ; diisopropyl methylcinnamate ; et glyceryl ethylhexanoate dimethoxycinnamate.
• Composés salicyliques : Homosalate (homomenthyl salicylate), commercialisé sous la marque « Eusolex HMS » par Rona/EM Industries ; ethylhexyl salicylate, commercialisé sous la marque « Neo Heliopan OS » par Haarmann and Reimer ; glycol salicylate ; butyloctyl salicylate ; phenyl salicylate ; dipropyleneglycol salicylate, commercialisés sous la marque « Dipsal » par Scher ; et TEA salicylate, commercialisé sous la marque « Neo Heliopan TS » par Haarmann and Reimer.
• Composés camphre, en particulier dérivés de benzylidènecamphre : 3-benzylidene camphor, fabriqué sous la marque « Mexoryl SD » par Chimex ; 4-methylbenzylidene camphor, commercialisé sous la marque « Eusolex 6300 » par Merck ; benzylidene camphor sulfonic acid, fabriqué sous la marque « Mexoryl SL » par Chimex ; camphor benzalkonium methosulfate, fabriqué sous la marque « Mexoryl SO » par Chimex ; et polyacrylamidomethyl benzylidene camphor, fabriqué sous la marque « Mexoryl SW » par Chimex.
• Composés Benzophénone : Benzophenone-1 (2,4-dihydroxybenzophenone), commercialisée sous la marque « Uvinul 400 » par BASF ; benzophenone-2 (tetrahydroxybenzophenone), commercialisée sous la marque « Uvinul D50 » par BASF ; Benzophenone-3 (2-hydroxy-4-methoxybenzophenone) ou oxybenzone, commercialisée sous la marque « Uvinul M40 » par BASF ; benzophenone-4 (hydroxymethoxy benzophonene sulfonic acid), commercialisée sous la marque « Uvinul MS40 » par BASF ; benzophenone-5 (Sodium hydroxymethoxy benzophenone Sulfonate) ; benzophenone-6 (dihydroxy dimethoxy benzophenone) ; commercialisé sous la marque « Helisorb 11 » par Norquay ; benzophenone-8, commercialisé sous la marque « Spectra-Sorb UV-24 » par American Cyanamid ; benzophenone-9 (Disodium dihydroxy dimethoxy benzophenonedisulfonate), commercialisée sous la marque « UVINUL DS-49 » par BASF ; benzophenone-12, et n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate (UVINUL A+ par BASF).
• Composés β,β-diphénylacrylate : Octocrylene, commercialisé notamment sous la marque « Uvinul N539 » par BASF ; et Etocrylene, commercialisé notamment sous la marque « Uvinul N35 » par BASF.
• Composés triazine : Diethylhexyl butamido triazone, commercialisé sous la marque « Uvasorb HEB » par Sigma 3V ; 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, bis-ethylhexyloxyphenol methoxyphenyl triazine commercialisé sous la marque « TINOSORB S » par CIBA GEIGY, et ethylhexyl triazone commercialisé sous la marque « UVINUL T150 » par BASF.
• Composés benzotriazole, en particulier dérivés de phénylbenzotriazole : 2-(2H-benzotriazole-2-yl)-6-dodecyl-4-methylpheno, ramifiés et linéaires ; et ceux décrits dans USP 5240975.
• Composés benzalmalonate : Dineopentyl 4'-methoxybenzalmalonate, et polyorganosiloxane comprenant des groupes fonctionnels benzalmalonate, tels que le polysilicone-15, commercialisé sous la marque « Sol SLX » par Hoffmann-LaRoche.
• Composés Benzimidazole, en particulier les dérivés de phénylbenzimidazole.
• Composés imidazoline : Ethylhexyl dimethoxybenzylidene dioxoimidazoline propionate.
• Composés bis-benzoazolyle : Les dérivés tels que décrits dans EP-669 323 et le brevet U.S. N° 2 463 264.
• Composés acide para-aminobenzoïque : PABA (acide p-aminobenzoïque), ethyl PABA, ethyl dihydroxypropyl PABA, pentyl dimethyl PABA, ethylhexyl dimethyl PABA, commercialisés notamment sous la marque « Escalol 507 » par ISP, glyceryl PABA et PEG-25 PABA, commercialisés sous la marque « Uvinul P25 » par BASF.
• les composés méthylène bis-(hydroxyphénylbenzotriazol), tels que 2,2’-methylenebis[6-(2H-benzotriazol-2-yl)-4-methyl-phenol] commercialisés sous forme solide sous la marque « Mixxim BB/200 » par Fairmount Chemical, 2,2’-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol] commercialisés sous forme micronisée en dispersion aqueuse sous la marque « Tinosorb M » par BASF, ou sous la marque « Mixxim BB/100 » par Fairmount Chemical, et les dérivés tels que décrits dans le brevet U.S. No. 5 237 071 et 5 166 355, GB-2 303 549, DE-197 26 184 et EP-893 119, et

Examples of organic UV filter(s) include those indicated below under their INCI names, and their mixtures.

• Anthranilic compounds: Menthyl anthranilate, marketed under the brand name “Neo Heliopan MA” by Haarmann and Reimer.
• Dibenzoylmethane compounds: Butyl methoxydibenzoylmethane, marketed in particular under the brand name “Parsol 1789” by Hoffmann-La Roche; and isopropyl dibenzoylmethane.
• Cinnamic compounds: Ethylhexyl methoxycinnamate, marketed in particular under the brand name “Parsol MCX” by Hoffmann-La Roche; isopropyl methoxycinnamate; isopropoxy methoxycinnamate; isoamyl methoxycinnamate, marketed under the brand name “Neo Heliopan E 1000” by Haarmann and Reimer; cinoxate (2-ethoxyethyl-4-methoxycinnamate); DEA methoxycinnamate; diisopropyl methylcinnamate; and glyceryl ethylhexanoate dimethoxycinnamate.
• Salicylic compounds: Homosalate (homomenthyl salicylate), marketed under the brand name “Eusolex HMS” by Rona/EM Industries; ethylhexyl salicylate, marketed under the brand name “Neo Heliopan OS” by Haarmann and Reimer; glycol salicylate; butyloctyl salicylate; phenyl salicylate; dipropylene glycol salicylate, marketed under the brand name “Dipsal” by Scher; and TEA salicylate, marketed under the brand name “Neo Heliopan TS” by Haarmann and Reimer.
• Camphor compounds, in particular benzylidenecamphor derivatives: 3-benzylidene camphor, manufactured under the brand name “Mexoryl SD” by Chimex; 4-methylbenzylidene camphor, marketed under the brand name “Eusolex 6300” by Merck; benzylidene camphor sulfonic acid, manufactured under the brand name “Mexoryl SL” by Chimex; camphor benzalkonium methosulfate, manufactured under the brand name “Mexoryl SO” by Chimex; and polyacrylamidomethyl benzylidene camphor, manufactured under the brand name “Mexoryl SW” by Chimex.
• Benzophenone Compounds: Benzophenone-1 (2,4-dihydroxybenzophenone), marketed under the brand name “Uvinul 400” by BASF; Benzophenone-2 (tetrahydroxybenzophenone), marketed under the brand name “Uvinul D50” by BASF; Benzophenone-3 (2-hydroxy-4-methoxybenzophenone) or oxybenzone, marketed under the brand name “Uvinul M40” by BASF; Benzophenone-4 (hydroxymethoxy benzophonene sulfonic acid), marketed under the brand name “Uvinul MS40” by BASF; Benzophenone-5 (Sodium hydroxymethoxy benzophenone Sulfonate); Benzophenone-6 (dihydroxy dimethoxy benzophenone); marketed under the brand name “Helisorb 11” by Norquay; Benzophenone-8, marketed under the brand name “Spectra-Sorb UV-24” by American Cyanamid; benzophenone-9 (Disodium dihydroxy dimethoxy benzophenonedisulfonate), marketed under the brand “UVINUL DS-49” by BASF; benzophenone-12, and n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate (UVINUL A+ by BASF).
• β,β-diphenylacrylate compounds: Octocrylene, marketed in particular under the brand name “Uvinul N539” by BASF; and Etocrylene, marketed in particular under the brand name “Uvinul N35” by BASF.
• Triazine compounds: Diethylhexyl butamido triazone, marketed under the brand name “Uvasorb HEB” by Sigma 3V; 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, bis-ethylhexyloxyphenol methoxyphenyl triazine marketed under the brand name “TINOSORB S” by CIBA GEIGY, and ethylhexyl triazone marketed under the brand name “UVINUL T150” by BASF.
• Benzotriazole compounds, in particular phenylbenzotriazole derivatives: 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methylpheno, branched and linear; and those described in USP 5240975.
• Benzalmalonate compounds: Dineopentyl 4'-methoxybenzalmalonate, and polyorganosiloxane comprising benzalmalonate functional groups, such as polysilicone-15, marketed under the trademark "Sol SLX" by Hoffmann-LaRoche.
• Benzimidazole compounds, especially phenylbenzimidazole derivatives.
• Imidazoline compounds: Ethylhexyl dimethoxybenzylidene dioxoimidazoline propionate.
• Bis-benzoazolyl compounds: Derivatives as described in EP-669,323 and US Patent No. 2,463,264.
• Para-aminobenzoic acid compounds: PABA (p-aminobenzoic acid), ethyl PABA, ethyl dihydroxypropyl PABA, pentyl dimethyl PABA, ethylhexyl dimethyl PABA, marketed in particular under the brand name “Escalol 507” by ISP, glyceryl PABA and PEG-25 PABA, marketed under the brand name “Uvinul P25” by BASF.
• methylene bis-(hydroxyphenylbenzotriazole) compounds, such as 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-methyl-phenol] marketed in solid form under the trade name "Mixxim BB/200" by Fairmount Chemical, 2,2'-methylenebis[6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol] marketed in micronized form in aqueous dispersion under the trade name "Tinosorb M" by BASF, or under the trade name "Mixxim BB/100" by Fairmount Chemical, and derivatives as described in US Patent No. 5,237,071 and 5,166,355, GB-2,303,549, DE-197 26 184 and EP-893 119, and

• Composés benzoxazole : 2,4-bis[5-1(dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-1,3,5-triazine, commercialisé sous la marque Uvasorb K2A par Sigma 3V.
• Polymères écran et silicones écran : Les silicones décrits dans WO 93/04665.
• Dimères dérivés d'α-alkylstyrène : Les dimères décrits dans DE-19855649.
• Composés 4,4-diarylbutadiène : 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene.

Drometrizole trisiloxane, marketed under the brand name “Silatrizole” by Rhodia Chimie or “Mexoryl XL” by L'Oréal, as shown below.

• Benzoxazole compounds: 2,4-bis[5-1(dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-1,3,5-triazine, marketed under the brand name Uvasorb K2A by Sigma 3V.
• Screen polymers and screen silicones: The silicones described in WO 93/04665.
• Dimers derived from α-alkylstyrene: The dimers described in DE-19855649.
• 4,4-Diarylbutadiene compounds: 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene.

It is preferable that the organic UV filter is chosen from the group consisting of:

butyl methoxydibenzoylmethane, ethylhexyl methoxycinnamate, homosalate, ethylhexyl salicylate, octocrylene, benzophenone-3, benzophenone-4, benzophenone-5, n-hexyl 2-(4-diethylamino-2-hydroxybenzoyl)benzoate, 1,1'-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone 4-methylbenzylidene camphor, ethylhexyl triazone, bis-ethylhexyloxyphenol methoxyphenyl triazine, diethylhexyl butamido triazone, 2,4,6-tris(dineopentyl 4'-aminobenzalmalonate)-s-triazine, 2,4,6-tris(diisobutyl 4'-aminobenzalmalonate)-s-triazine, 2,4-bis-(n-butyl 4'-aminobenzalmalonate)-6-[(3-{1,3,3,3-tetramethyl-1-[(trimethylsilyloxy]disiloxanyl}propyl)amino]-s-triazine, 2,4, 6-tris-(di-phenyl)-triazine, 2,4,6-tris-(tert-phenyl)-triazine, methylene bis-benzotriazolyl tetramethylbutylphenol, drometrizole trisiloxane, polysilicone-15, dineopentyl 4'-methoxybenzalmalonate, 1,1-dicarboxy(2,2'-dimethylpropyl)-4,4-diphenylbutadiene, 2,4-bis[5-1 (dimethylpropyl)benzoxazol-2-yl-(4-phenyl)imino]-6-(2-ethylhexyl)imino-1,3,5-triazine, camphor benzylkonium methosulfate and mixtures thereof.

It is preferable that the organic UV filter is selected from the group consisting of butyl methoxydimenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, ethylhexyl triazone, drometrizole trisiloxane, ethylhexyl salicylate, octocrylene, homosalate and their mixture.

[Fatty alcohol]

The composition according to the present invention comprises (d) at least one fatty alcohol. Two or more different types of (d) fatty alcohols may be used in combination. Thus, a single type of (d) fatty alcohol or a combination of different types of (d) fatty alcohols may be used.

The term "fatty" herein means the inclusion of a relatively large number of carbon atoms. Thus, alcohols having 6 or more, preferably 8 or more, and more preferably 10 or more carbon atoms are encompassed within the scope of fatty alcohols. Fatty alcohols may be saturated or unsaturated. The fatty alcohol may be linear or branched. Two or more fatty alcohols may be used in combination.

The (d) fatty alcohol may have the structure R-OH in which R is selected from saturated and unsaturated, linear and branched radicals containing from 6 to 40 carbon atoms, for example from 8 to 30 carbon atoms. In at least one embodiment, R is selected from C ₁₂ -C ₂₄ alkyl and C ₁₂ -C ₂₄ alkenyl groups. R may be substituted or not by at least one hydroxyl group.

Non-limiting examples of (d) fatty alcohols that may be cited include lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol, linoleyl alcohol, undecylenic alcohol, palmitoleyl alcohol, arachidyl alcohol, arachidonyl alcohol, erucyl alcohol, cetearyl alcohol and mixtures thereof.

Examples of suitable fatty alcohols include, but are not limited to, cetyl alcohol, cetearyl alcohol, stearyl alcohol, behenyl alcohol, arachidyl alcohol and mixtures thereof.

(d) Fatty alcohol may represent a mixture of fatty alcohols, meaning that several species of fatty alcohol may coexist, as a mixture, in a commercial product.

According to at least one embodiment, the (d) fatty alcohol used in the composition according to the present invention is chosen from a mixture of cetyl alcohol and stearyl alcohol (cetearyl alcohol), and/or a mixture of arachidyl alcohol and behenyl alcohol.

It may be preferable that the (d) fatty alcohol is selected from the group consisting of cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol and mixtures thereof.

The amount of (d) fatty alcohol in the composition according to the present invention may be 0.01% by weight or more, preferably 0.05% by weight or more, and more preferably 0.1% by weight or more, relative to the total weight of the composition.

Furthermore, the amount of (d) fatty alcohol in the composition according to the present invention may be 10% by weight or less, preferably 5% by weight or less, and more preferably 2% by weight or less, relative to the total weight of the composition.

The amount of (d) fatty alcohol in the composition according to the present invention may be from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight, and more preferably from 0.1% to 2% by weight, relative to the total weight of the composition.

[Water]

The composition according to the present invention may comprise (e) water.

(e) Water may form an aqueous phase of the composition according to the present invention.

If the composition according to the present invention is in the form of an O/W emulsion, (e) the water, if any, in the composition according to the present invention can form a continuous aqueous phase in the O/W emulsion.

The amount of (e) water in the composition according to the present invention may be 40% by weight or more, preferably 45% by weight or more, and more preferably 50% by weight or more, relative to the total weight of the composition.

Furthermore, the amount of (e) water in the composition according to the present invention may be 70% by weight or less, preferably 65% by weight or less, and more preferably 60% by weight or less, relative to the total weight of the composition.

The amount of (e) water in the composition according to the present invention may range from 40% to 70% by weight, preferably from 45% to 65% by weight, and more preferably from 50% to 60% by weight, relative to the total weight of the composition.

[Oil]

The composition according to the present invention may comprise (f) at least one oil. If two or more oils are used, they may be the same or different.

Here "oil" means a fatty compound or substance that is in the form of a liquid or paste (not solid) at room temperature (25 °C) under atmospheric pressure (760 mmHg). As oils, those generally used in cosmetics can be used alone or in combination. These oils can be volatile or non-volatile.

According to the present invention, the (f) oil is different from the (d) fatty alcohol.

The (f) oil may be a non-polar oil such as a hydrocarbon oil, a silicone oil or the like; a polar oil such as a vegetable or animal oil and an ester oil or an ether oil; or a mixture thereof.

The (f) oil may be selected from the group consisting of oils of vegetable or animal origin, synthetic oils, silicone oils and hydrocarbon oils.

In one embodiment, the vegetable oil may be selected from oils extracted from plants, butters extracted from plants and mixtures thereof.

Examples of oils extracted from plants 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, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.

Examples of plant-derived butters include shea butter, Nilotica shea butter (Butyrospermum parkii), galam butter (Butyrospermum parkii), Borneo butter or fat or tengkawang tallow (Shorea stenoptera), shorea butter, illipe butter, madhuca butter or Madhuca longifolia butter (Bassia), mowrah butter (Madhuca latifolia), katiau butter (Madhuca mottleyana), phulwara butter (M. butyracea), mango butter (Mangifera indica), murumuru butter (Astrocaryum murumuru), kokum butter (Garcinia indica), ucuuba butter (Virola sebifera), tucuma butter, painya (kpangnan) butter (Pentadesma butyracea), coffee butter (Coffea arabica), butter apricot (Prunus armeniaca), macadamia butter (Macadamia ternifolia), grape seed butter (Vitis vinifera), avocado butter (Persea gratissima), olive butter (Olea europaea), sweet almond butter (Prunus amygdalus dulcis), cocoa butter (Theobroma cacao) and sunflower butter.

Examples of animal oils include, for example, squalene and squalane.

Examples of synthetic oils include alkane oils such as isododecane and isohexadecane, ester oils, ether oils and artificial triglycerides.

The ester oils are preferably liquid esters of saturated or unsaturated, linear or branched C ₁ -C ₂₆ aliphatic monoacids or polyacids and of saturated or unsaturated, linear or branched C ₁ -C ₂₆ aliphatic monoalcohols or polyalcohols, the total number of carbon atoms of the esters being greater than or equal to 10.

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

Among the monoesters of monoacids and monoalcohols, mention may be made of ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isonanoate, isononyl isonanoate, isodecyl neopentanoate and isostearyl neopentanoate.

Esters of C ₄ -C ₂₂ dicarboxylic or tricarboxylic acids and C ₁ -C ₂₂ alcohols, and esters of monocarboxylic, dicarboxylic or tricarboxylic acids and C ₄ -C ₂₆ non-sugar dihydroxy, trihydroxy, tetrahydroxy or pentahydroxy alcohols may also be used.

Examples include: 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.

As ester oils, sugar esters and diesters of C ₆ -C ₃₀ and preferably C ₁₂ -C ₂₂ fatty acids may be used. It is recalled that the term "sugar" designates compounds based on oxygen-bearing hydrocarbons containing several alcohol functions, with or without aldehyde or ketone functions, and which comprise at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides or polysaccharides.

Examples of suitable sugars which may be cited include sucrose, glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose and their derivatives, including alkyl derivatives, such as methyl derivatives, for example methylglucose.

The fatty acid sugar esters may be chosen in particular from the group comprising the esters or mixtures of esters of sugars described above and of C ₆ -C ₃₀ and preferably C ₁₂ -C ₂₂ fatty acids, linear or branched, saturated or unsaturated. If they are unsaturated, these compounds may have one to three conjugated or unconjugated carbon-carbon double bonds.

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

These esters may be, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates and arachidonates, or mixtures thereof such as, in particular, mixed esters of oleopalmitate, oleostearate and palmitostearate, as well as pentaerythrityl tetraethyl hexanoate.

More particularly, monoesters and diesters are used, and in particular monooleates or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates and oleostearates of sucrose, glucose or methylglucose.

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

Examples of preferable ester oils include, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylate/caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrityl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.

Examples of artificial triglycerides include, for example, capryl caprylyl glycerides, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, glyceryl tri(caprate/caprylate), glyceryl tri(caprate/caprylate/linolenate) and glyceryl tri(caprate/caprylate/succinate).

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

Preferably, the silicone oil is chosen from liquid polydialkylsiloxanes, in particular liquid polydimethylsiloxanes (PDMS) and liquid polyorganosiloxanes comprising at least one aryl group.

These silicone oils may also be organomodified. The organomodified silicones that may be used in accordance with the present invention are silicone oils as defined above and comprise in their structure one or more organofunctional groups attached via a hydrocarbon-based group.

Organopolysiloxanes are further defined in Walter Noll's Chemistry and Technology of Silicones (1968), Academic Press. They may be volatile or nonvolatile.

When they are volatile, silicones are more particularly chosen from those having a boiling point between 60°C and 260°C, and even more particularly from:

(i) cyclic polydialkylsiloxanes comprising from 3 to 7 and preferably from 4 to 5 silicon atoms. These include, for example, octamethylcyclotetrasiloxane sold in particular under the name Volatile Silicone® 7207 by Union Carbide or Silbione® 70045 V2 by Rhodia, decamethylcyclopentasiloxane sold under the name Volatile Silicone® 7158 by Union Carbide, Silbione® 70045 V5 by Rhodia, and dodecamethylcyclopentasiloxane sold under the name Silsoft 1217 by Momentive Performance Materials, and mixtures thereof. Mention may also be made of cyclocopolymers of the dimethylsiloxane/methylalkylsiloxane type, such as Silicone Volatile® FZ 3109 sold by the company Union Carbide, of formula:

Also exemplary are mixtures of cyclic polydialkylsiloxanes with organosilicon compounds, such as the mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50/50) and the mixture of octamethylcyclotetrasiloxane and oxy-1,1'-bis(2,2,2',2',3,3'-hexatrimethylsilyloxy)neopentane; and

(ii) linear volatile polydialkylsiloxanes containing 2 to 9 silicon atoms and having a viscosity of less than or equal to 5×10 ^-6 m ² /s 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 the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics . The viscosity of silicones is measured at 25 °C according to ASTM 445 Appendix C.

Non-volatile polydialkylsiloxanes may also be used. These non-volatile silicones are more particularly chosen from polydialkylsiloxanes, among which we can mainly cite polydimethylsiloxanes containing trimethylsilyl end groups.

• les huiles Silbione^®des gammes 47 et 70 047 ou les huiles Mirasil^®vendues par Rhodia, par exemple l’huile 70 047 V 500 000 ;
• les huiles de la gamme Mirasil^®vendues par la société Rhodia ;
• les huiles de la gamme 200 de la société Dow Corning, telles que DC200 avec une viscosité de 60 000 mm²/s ; et
• les huiles Viscasil^®de General Electric et certaines huiles de la gamme SF (SF 96, SF 18) de General Electric.

Among these polydialkylsiloxanes, we can cite, without limitation, the following commercial products:

• Silbione ^® oils from the 47 and 70 047 ranges or Mirasil ^® oils sold by Rhodia, for example oil 70 047 V 500 000;
• oils from the Mirasil ^® range sold by the company Rhodia;
• Dow Corning's 200 series oils, such as DC200 with a viscosity of 60,000 mm ² /s; and
• General Electric ^Viscasil® oils and certain General Electric SF range oils (SF 96, SF 18).

Also exemplified are polydimethylsiloxanes containing dimethylsilanol end groups known as dimethiconol (CTFA), such as the oils in the 48 range from Rhodia.

Among the silicones containing aryl groups, mention may be made of polydiarylsiloxanes, in particular polydiphenylsiloxanes and polyalkylarylsiloxanes such as a phenyl silicone oil.

Phenyl silicone oil can be chosen from phenyl silicones of the following formula:

Or

R ₁ to R ₁₀ are, independently of one another, radicals based on saturated or unsaturated, linear, cyclic or branched C ₁ -C ₃₀ hydrocarbons, preferably radicals based on C ₁ -C ₁₂ hydrocarbons, and more preferably radicals based on C ₁ -C ₆ hydrocarbons, in particular methyl, ethyl, propyl or butyl radicals, and

m, n, p and q are, independently of each other, integers from 0 to 900 inclusive, preferably from 0 to 500 inclusive, and more preferably from 0 to 100 inclusive,

provided that the sum n+m+q is different from 0.

• les huiles Silbione® de la gamme 70 641 de Rhodia ;
• les huiles des gammes Rhodorsil® 70 633 et 763 de Rhodia ;
• l’huile Dow Corning 556 Cosmetic Grade Fluid de Dow Corning ;
• les silicones de la gamme PK de Bayer, comme le produit PK20 ;
• certaines huiles de la gamme SF de General Electric, comme SF 1023, SF 1154, SF 1250 et SF 1265.

Examples that may be cited include products sold under the following names:

• Silbione® oils from the 70 641 range from Rhodia;
• oils from the Rhodorsil® 70 633 and 763 ranges from Rhodia;
• Dow Corning 556 Cosmetic Grade Fluid;
• Bayer's PK range of silicones, such as PK20;
• some General Electric SF range oils, such as SF 1023, SF 1154, SF 1250 and SF 1265.

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

Liquid organomodified silicones may contain polyethyleneoxy and/or polypropyleneoxy groups. Examples include KF-6017 silicone from Shin-Etsu, and Silwet® L722 and L77 oils from Union Carbide.

It may be preferable if the (f) oil does not include silicone oil.

• les alcanes inférieurs en C₅-C₁₉linéaires ou ramifiés, facultativement cycliques. Des exemples qui peuvent être cités incluent hexane, undécane, dodécane, tridécane et isoparaffines, par exemple isohexadécane, isododécane et isodécane ; et
• les hydrocarbures linéaires ou ramifiés contenant plus de 16 atomes de carbone, tels que paraffines liquides, gelée de pétrole liquide, polydécènes et polyisobutènes hydrogénés tels que Parleam et squalane.

Hydrocarbon oils can be chosen from:

• linear or branched, optionally cyclic, C ₅ -C ₁₉ lower alkanes. Examples that may be cited include hexane, undecane, dodecane, tridecane and isoparaffins, for example isohexadecane, isododecane and isodecane; and
• linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffins, liquid petroleum jelly, hydrogenated polydecenes and polyisobutenes such as Parleam and squalane.

Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, petrolatum or vaseline, naphthalenes, and the like; hydrogenated polyisobutene, isoeicosane, and decene/butene copolymer; and mixtures thereof.

It is preferred that the (f) oil is selected from hydrocarbon oils such as C15-19 alkane, vegetable oils, ester oils and mixtures thereof.

The amount of the (f) oil(s) in the composition according to the present invention may be 0.01% by weight or more, preferably 0.1% by weight or more, and more preferably 1% by weight or more, relative to the total weight of the composition.

Furthermore, the amount of the (f) oil(s) in the composition according to the present invention may be 25% by weight or less, preferably 20% by weight or less, and more preferably 15% by weight or less, relative to the total weight of the composition.

The amount of the (f) oil(s) in the composition according to the present invention may be from 0.01% to 25% by weight, preferably from 0.1% to 20% by weight, and more preferably from 1% to 15% by weight, relative to the total weight of the composition.

The oil(s), if any, may form a fatty phase of the composition according to the present invention.

If the composition according to the present invention is in the form of an H/W emulsion, the (f) oil, if any, in the composition according to the present invention can form, with the (c) UV filter, if the (c) UV filter is chosen from organic UV filters, fatty phases dispersed in the H/W emulsion.

[Optional ingredients]

The composition according to the present invention may comprise, in addition to the above-mentioned ingredients, one or more optional ingredients typically used in cosmetics, in particular, hydrophilic or lipophilic thickeners, derived, for example, from synthetic polymers; volatile or non-volatile organic solvents other than the (f) oil; anionic polymers; cationic polymers; amphoteric polymers; non-ionic polymers; silicones and silicone derivatives other than the (f) oil; natural extracts derived from animals or plants other than the (f) oil; and the like, within a range which does not alter the effects of the present invention.

The composition according to the present invention may comprise the above optional ingredient(s) in an amount of 0.01% to 30% by weight, preferably 0.05% to 20% by weight, and more preferably 0.1% to 10% by weight, relative to the total weight of the composition.

(Preparation)

The composition according to the present invention can be prepared by mixing the essential ingredient(s) as explained above, and the optional ingredient(s), if necessary, as explained above.

The method and means for mixing the above essential and optional ingredients are not limited. Any conventional method and means can be used for mixing the above essential and optional ingredients to prepare the composition according to the present invention.

[Shape]

The form of the composition according to the present invention is not particularly limited, and can take various forms such as a solution and an emulsion.

It is preferable that the composition according to the present invention is in the form of an emulsion. It is preferable that the composition according to the present invention is in the form of an O/W emulsion, which comprises fatty phases dispersed in a continuous aqueous phase. The dispersed fatty phases may be oil droplets in the aqueous phase.

The O/W architecture or structure, which consists of fatty phases dispersed in an aqueous phase, has an external aqueous phase, and therefore, if the composition according to the present disclosure has the O/W architecture or structure, it can provide a pleasant sensation during use due to the immediate freshness sensation that the aqueous phase can provide.

[Process and usage]

It is preferable that the composition according to the present invention is a cosmetic or dermatological composition, preferably a cosmetic composition, and more preferably a cosmetic composition for a keratinous substance such as the skin.

The composition according to the present invention can be used for a non-therapeutic process, such as a cosmetic process, for treating a keratinous substance such as the skin, mucous membranes and/or the scalp, by being applied to the keratinous substance.

Thus, the present invention also relates to a cosmetic method for treating a keratinous substance such as the skin, comprising the step of applying the composition according to the present invention to the keratinous substance.

The present invention may also relate to a use of the composition according to the present invention as a cosmetic product or in a cosmetic product such as care products and makeup products, for the skin of the body and/or face and/or mucous membranes and/or the scalp.

In other words, the composition according to the present invention can be used, as such, as a cosmetic product. Alternatively, the composition according to the present invention can be used as an element of a cosmetic product. For example, the composition according to the present invention can be added or combined with any other elements to form a cosmetic product.

The care product may be a lotion, especially a milk lotion, a cream and the like. The makeup product may be a foundation, a lipstick, a lip gloss, an eye shadow and the like.

Another aspect of the present invention relates to a use of:

(a) at least one amino acid surfactant, preferably at least one gemini amino acid surfactant;

(b) at least one polyglyceryl ester of fatty acid; and

(d) at least one fatty alcohol,

in which

the HLB value of the (b) polyglyceryl fatty acid ester(s) is 6 or more, preferably 7 or more, and more preferably 8 or more, and

the fatty acid moiety of the (b) fatty acid polyglyceryl ester comprises 16 or fewer carbon atoms, preferably 14 or fewer, and more preferably 12 or fewer,

in a composition comprising

(c) at least one UV filter, preferably at least one organic UV filter,

in order to make the composition stable and/or to make the composition capable of forming a homogeneous film.

The above explanations regarding ingredients (a) to (d), as well as optional ingredients, for the composition according to the present invention may apply to those for the above use according to the present invention. The explanations regarding the preparation and forms of the composition according to the present invention may also apply to those of the composition described in the above use.

EXAMPLES

The present invention will be described in more detail with the aid of examples which should not, however, be construed as limiting the scope of the present invention.

Examples 1 to 10 and Comparative Examples 1 to 10

1. mélange des ingrédients de la phase A à 60-65 °C pour former un mélange uniforme de la phase A ;
2. ajout des ingrédients de la phase B au mélange uniforme de la phase A à 60-65 °C, puis mélange avec un homogénéisateur à 60-65 °C pour former un mélange uniforme des phases A et B ;
3. ajout des ingrédients de la phase C au mélange uniforme des phases A et B, puis mélange avec un homogénéisateur à 60-65 °C pour former une phase aqueuse ;
4. mélange séparément des ingrédients de la phase D à 75-80 °C pour former une phase huileuse ;
5. mélange des phases aqueuse et huileuse à 60-65 °C avec un homogénéisateur pour obtenir un mélange uniforme ;
6. refroidissement du mélange uniforme des phases A, B, C et D à environ 40 °C ; et
7. ajout de l’ingrédient de la phase E au mélange uniforme des phases A, B, C et D à environ 40 °C, puis mélange avec un homogénéisateur.

The following compositions according to Examples 1 to 10 and Comparative Examples 1 to 10 shown in Tables 1 and 2 were prepared by mixing the ingredients shown in Tables 1 and 2 as follows:

1. mixing the ingredients of phase A at 60-65°C to form a uniform mixture of phase A;
2. adding the ingredients of phase B to the uniform mixture of phase A at 60-65°C, then mixing with a homogenizer at 60-65°C to form a uniform mixture of phases A and B;
3. adding the ingredients of phase C to the uniform mixture of phases A and B, then mixing with a homogenizer at 60-65°C to form an aqueous phase;
4. separately mixing the ingredients of phase D at 75-80°C to form an oil phase;
5. mixing the aqueous and oily phases at 60-65°C with a homogenizer to obtain a uniform mixture;
6. cooling the uniform mixture of phases A, B, C and D to about 40°C; and
7. adding the ingredient of phase E to the uniform mixture of phases A, B, C and D at approximately 40°C, then mixing with a homogenizer.

The compositions according to Examples 1 to 10 and Comparative Examples 1 to 10 were in the form of an O/W emulsion.

The numerical values of the quantities of the components shown in Tables 1 and 2 are all based on “% by weight” of active ingredients .

Ingredients Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 Ex. 7 Ex. 8 Ex. 9 Ex. 10 HAS Water qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 Caprylyl Glycol 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Glycerin 3 3 3 3 3 3 3 3 3 3 Butylene glycol 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Trisodium ethylenediamine disuccinate 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Phenoxyethanol 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Hydroxyacetophenone 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Potassium hydroxide 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 B Xanthan gum 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Ammonium acryloyldimethyl taurate/VP copolymer 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Carbomer 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 C Dilauramidoglutamide lysine sodium 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Polyglyceryl-6 caprylate (HLB:15) 1 - - - - - - - - - Polyglyceryl-4 caprate (HLB: 14) - 1 1 1 1 - - - - 1 Polyglyceryl-6 caprate (HLB:10) - - - - - 1 - - - - Polyglyceryl-2 laurate (HLB: 8.5) - - - - - - 1 - - - Polyglyceryl-5 laurate (HLB:11) - - - - - - - 1 - - Polyglyceryl-10 laurate (HLB:16) - - - - - - - - 1 - D Cetyl alcohol - 1 0.5 - - - - - - - Arachidyl alcohol (and) Behenyl alcohol 0.5 - - 1 0.5 0.5 0.5 0.5 0.5 0.5 Butyl Methoxydibenzoylmethane 2 2 2 2 2 2 2 2 2 3 Bis-ethylhexyloxyphenol methoxyphenyl triazine 3 3 3 3 3 3 3 3 3 - Ethylhexyl triazone 4 4 4 4 4 4 4 4 4 - Drometrizole trisiloxane 2 2 2 2 2 2 2 2 2 - Ethylhexyl salicylate - - - - - - - - - 5 Octocrylene - - - - - - - - - 7 Homosalate - - - - - - - - - 10 C12-15 Alkyl Benzoate 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 - Isopropyl lauroyl sarcosinate 3 3 3 3 3 3 3 3 3 - Diisopropyl sebacate 3 3 3 3 3 3 3 3 3 - Shea butter 1 1 1 1 1 1 1 1 1 1 C15-19 alkane 4 4 4 4 4 4 4 4 4 4 Pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Polyalkyl acrylate C10-30 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 E Mica 1 1 1 1 1 1 1 1 1 1 Titanium dioxide 3 3 3 3 3 3 3 3 3 3 Silica 1 1 1 1 1 1 1 1 1 1 Film homogeneity 5 4.5 5 5 5 5 5 4 4 5 Stability Good Good Good Good Good Good Good Good Good Good

Ingredients Ex.
Comp. 1 Ex.
Comp. 2 Ex.
Comp. 3 Ex.
Comp. 4 Ex.
Comp. 5 Ex.
Comp. 6 Ex.
Comp. 7 Ex.
Comp. 8 Ex.
Comp. 9 Ex.
Comp. 10 HAS Water qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 qsp 100 Caprylyl Glycol 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Glycerin 3 3 3 3 3 3 3 3 3 3 Butylene glycol 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Trisodium ethylenediamine disuccinate 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Phenoxyethanol 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Hydroxyacetophenone 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Potassium hydroxide 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 B Xanthan gum 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Ammonium acryloyldimethyl taurate/VP copolymer 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Carbomer 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0.15 C Dilauramidoglutamide lysine sodium 0.2 0.2 0.2 0.2 0.2 - - 0.2 - 0.2 Sodium lauryl sulfate - - - - - 0.2 - - - - Stearic acid - - - - - - 0.2 - - - Sorbitan oleate - - - - - - - - - 0.5 Polyglyceryl-10 laurate (HLB:16) - - - - 1 1 1 - - - Polyglyceryl-10 dioleate (HLB:12) 1 - - - - - - - - - Polyglyceryl-4 isostearate (HLB: 5) - 1 - - - - - - - - Glyceryl isostearate (HLB: 4) - - 1 - - - - - - - D Arachidyl alcohol (and) Behenyl alcohol 0.5 0.5 0.5 0.5 - 0.5 0.5 - - - Butyl Methoxydibenzoylmethane 2 2 2 2 2 2 2 2 2 3 Bis-ethylhexyloxyphenol methoxyphenyl triazine 3 3 3 3 3 3 3 3 3 - Ethylhexyl triazone 4 4 4 4 4 4 4 4 4 - Drometrizole trisiloxane 2 2 2 2 2 2 2 2 2 - Ethylhexyl salicylate - - - - - - - - - 5 Octocrylene - - - - - - - - - 7 Homosalate - - - - - - - - - 10 C12-15 Alkyl Benzoate 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 - Isopropyl lauroyl sarcosinate 3 3 3 3 3 3 3 3 3 - Diisopropyl sebacate 3 3 3 3 3 3 3 3 3 - Shea butter 1 1 1 1 1 1 1 1 1 1 C15-19 alkane 4 4 4 4 4 4 4 4 4 4 Pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Polyalkyl acrylate C10-30 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 E Mica 1 1 1 1 1 1 1 1 1 1 Titanium dioxide 3 3 3 3 3 3 3 3 3 3 Silica 1 1 1 1 1 1 1 1 1 1 Film homogeneity 2 2.5 2 1 2 2 2.5 1 1 2 Stability Poor Poor Poor Good Poor Poor Poor Poor Poor Poor

[Evaluations]

(Film homogeneity)

Each composition in the same amount was applied to a polypropylene sheet (0.2 mm PX-P of Sekisui Kagaku Co. Ltd) by an applicator called “Elcometer 4340” (Elcometer K.K.) with a weight of 1 kg and dried to form a film on the sheet. Then, the applied sheet was exposed to UV (wavelength 365 nm) using a UV lamp (UV black ray B-100AP).

Film homogeneity on the sheet was assessed by visual observation. A film with good film homogeneity had a strong and homogeneous black color. On the other hand, a film with poor homogeneity had a translucent blue color that was not homogeneous. The photo of each film was taken and scored from 1 to 5. (1 means poor film homogeneity while 5 means high film homogeneity).

The results of the above evaluation as average score are shown in Table 1.

(Stability)

3 g of each composition was placed in a 30 mL beaker and stirred with a small stir bar (0.76 g, 1.5 cm long) at a shear rate of 400 rpm at room temperature for 5 minutes. Then, the composition was observed under microscopy (Olympus BX51-P polarizing microscope) to evaluate the stability of the composition according to the following criteria.

Good: No phase separation or aggregation

Poor: Phase separation or aggregation

The results of the above evaluation are shown in Table 1.

Example 11

The following composition according to Example 11, shown in Table 3, was prepared by mixing the ingredients shown in Table 3 as follows:

(1) mixing the ingredients of phase A at 60-65°C to form a uniform mixture of phase A;

(2) adding the ingredients of phase B to the uniform mixture of phase A at 60-65°C, then mixing with a homogenizer at 60-65°C to form a uniform mixture of phases A and B;

(3) adding the ingredients of phase C to the uniform mixture of phases A and B, then mixing with a homogenizer at 60-65°C to form an aqueous phase;

(4) separately mixing ingredients of phase D at 75-80°C to form an oil phase;

(5) mixing the aqueous and oily phases at 60-65°C with a homogenizer to obtain a uniform mixture;

(6) cooling the uniform mixture of phases A, B, C and D to about 40°C; and

(7) adding the ingredient of phase E to the uniform mixture of phases A, B, C and D at approximately 40°C, then mixing with a homogenizer.

The composition according to Example 11 was in the form of an O/W emulsion.

The numerical values of the component quantities given in Table 3 are all based on the “% by weight” of active ingredients .

Ingredients Ex. 11 HAS Water qsp 100 Caprylyl Glycol 0.3 Glycerin 3 Butylene glycol 2.5 Trisodium ethylenediamine disuccinate 0.2 Phenoxyethanol 0.6 Hydroxyacetophenone 0.2 Potassium hydroxide 0.3 B Xanthan gum 0.3 Ammonium acryloyldimethyl taurate/VP copolymer 0.4 Carbomer 0.15 C Dilauramidoglutamide lysine sodium 0.2 Polyglyceryl-4 caprate (HLB: 14) 1 D Arachidyl alcohol (and) Behenyl alcohol 0.5 Butyl Methoxydibenzoylmethane 2 Bis-ethylhexyloxyphenol methoxyphenyl triazine 3 Ethylhexyl triazone 4 Drometrizole trisiloxane 2 C12-15 Alkyl Benzoate 4.5 Isopropyl lauroyl sarcosinate 3 Diisopropyl sebacate 3 Shea butter 1 C15-19 alkane 4 Pentaerythrityl tetra-di-t-butyl hydroxyhydrocinnamate 0.5 Polyalkyl acrylate C10-30 0.5 E Mica 0.5 Titanium dioxide 1.5 Silica 2 FPS in vivo 43 Texture Good

[Evaluations]

(FPS in vivo)

The in vivo sun protection factor (SPF) of the composition according to Example 11 was determined in accordance with ISO/EN 24444 (2019) Cosmetics-Sun protection test methods-In vivo determination of the sun protection factor (SPF). This test was carried out using a UV simulator (UV source: Xenon lamp: Multiport 601-300W sun lamp, v2.5 WG320 filter, Spectrum: 290 to 400 nm).

The results are shown in Table 3.

(Texture)

The texture during application of the composition according to Example 11 to the skin was evaluated by applying the composition to a forearm of a panelist in an amount of 2 mg/cm ² and then assessing the friction force felt between the fingers and the surface of the forearm by the panelist. The texture was evaluated in accordance with the following criteria.

Good: Soft or non-sticky

Mediocre: Not soft or sticky

The results are shown in Table 3.

(Summary)

As shown in Table 1, the compositions according to Examples 1 to 10 are stable and can form a homogeneous film.

As shown in Table 3, the composition according to Example 11 can provide good UV protection and a good texture of soft or non-tacky feel to the touch during application. The composition according to Example 11 is very similar to the composition according to Example 5. Thus, it is evident that the compositions according to Examples 1 to 10 can also provide good UV protection and a good texture of soft or non-tacky feel to the touch during application.

Furthermore, Table 2 shows that the absence of any of the ingredients (a) to (d) in the composition according to the present invention adversely affects the stability of the composition and the ability to form a homogeneous film by the composition. It is obvious that the formation of a non-homogeneous film would deteriorate the UV protection.

For example, Comparative Examples 1 to 3 demonstrate that compositions including a polyglyceryl fatty acid ester with a fatty acid moiety including more than 16 carbon atoms are not stable and cannot form a homogeneous film.

Comparative Example 4 demonstrates that a composition not including a polyglyceryl fatty acid ester cannot form a homogeneous film.

Comparative Example 5 demonstrates that a composition not including fatty alcohol is not stable and cannot form a homogeneous film.

Comparative Examples 6 and 7 demonstrate that a composition not including an amino acid surfactant is not stable and cannot form a homogeneous film, even if the composition includes another anionic surfactant (sodium lauryl sulfate or stearic acid with potassium hydroxide) other than the amino acid surfactant.

Comparative Example 8 demonstrates that a composition including neither a polyglyceryl fatty acid ester nor a fatty alcohol is not stable and cannot form a homogeneous film.

Comparative Example 9 demonstrates that a composition including neither a fatty acid polyglyceryl ester, nor an amino acid surfactant, nor a fatty alcohol is not stable and cannot form a homogeneous film.

Comparative Example 10 demonstrates that a composition including neither polyglyceryl fatty acid ester nor fatty alcohol is not stable and cannot form a homogeneous film, even if the composition includes another nonionic surfactant (sorbitan oleate) other than the polyglyceryl fatty acid ester.

Claims (10)

Composition comprising:
(a) at least one amino acid surfactant;
(b) at least one polyglyceryl ester of fatty acid;
(c) at least one UV filter; and
(d) at least one fatty alcohol,
in which
the HLB value of the (b) fatty acid polyglyceryl ester(s) is 6 or more, preferably 7 or more, and more preferably 8 or more, and
the fatty acid moiety of the (b) fatty acid polyglyceryl ester comprises 16 or fewer carbon atoms, preferably 14 or fewer, and more preferably 12 or fewer. Composition according to claim 1, in which the (a) amino acid surfactant is selected from the compounds represented by the formula (A):
(HAS)
in which
Y' independently denotes a carboxylic acid group or an alkali salt of a carboxylic acid group such as a sodium salt of a carboxylic acid group,
j1, k1, j2 and k2 denote integers such that (j1, k1, j2, k2) = any one of (2,0,2,0), (2,0,0,2), (0,2,2,0) and (0,2,0,2), and
l denotes an integer from 6 to 16, preferably from 8 to 14, and more preferably from 10 to 12. The composition of claim 1 or 2, wherein the (a) amino acid surfactant is selected from the group consisting of sodium dilauramidoglutamide lysine, sodium dimyristoylglutamide lysine and sodium distearoylglutamide lysine, and mixtures thereof. A composition according to any one of claims 1 to 3, wherein the (b) fatty acid polyglyceryl ester is selected from the group consisting of PG2 laurate, PG4 caprate, PG5 laurate, PG6 dicaprate, PG6 caprylate, PG10 laurate, and a mixture thereof. Composition according to any one of claims 1 to 4, in which the (c) UV filter is chosen from organic UV filters, preferably from the group consisting of butyl methoxydimenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyl triazine, ethylhexyl triazone, drometrizole trisiloxane, ethylhexyl salicylate, octocrylene, homosalate, and their mixture. A composition according to any one of claims 1 to 5, wherein the (d) fatty alcohol is selected from the group consisting of cetyl alcohol, stearyl alcohol, arachidyl alcohol, behenyl alcohol, and mixtures thereof. A composition according to any one of claims 1 to 6, wherein the composition further comprises (e) water. Composition according to claim 6 or 7, in which the composition is in the form of an O/W emulsion. Composition according to any one of claims 1 to 8, in which the composition is a cosmetic composition, preferably a cosmetic composition for a keratinous substance, and more preferably a cosmetic composition for the skin. Cosmetic process for treating a keratinous substance, comprising the step of applying the composition according to any one of claims 1 to 9 to the keratinous substance.