JP2022090264A - Oil-in-water emulsion composition - Google Patents

Abstract

To provide an oil-in-water sun care composition which can provide a watery and fresh sensation to a keratinous substance, such as skin.SOLUTION: The present invention relates to an oil-in-water composition comprising: (a) at least one associative polymer comprising one or more acrylic and/or methacrylic units, (b) at least one neutralized poly(meth)acrylic acid polymer, (c) at least one organic UV filter, and (d) at least one oil.SELECTED DRAWING: None

Description

The present invention relates to an oil-in-water emulsion composition, preferably an oil-in-water skin care cosmetic composition.

Adding texture to keratin substances such as skin is one of the important features of cosmetics, especially skin cosmetics. So far, some techniques relating to emulsion compositions or gel-like compositions that impart improved texture have been reported.

For example, WO2018 / 180316 is an emulsified cosmetic product containing components A to E, wherein the content of component A is 0.1 to 1.0% by mass, the content of component B is 0.4% by mass or less, and the content of component C is 0.3. Mass% or less, content of component D is 4.0% by mass or less, mass ratio of component B to component A (component B / component A) is 0.10 or more, mass ratio of component C to component A (component C / component A) ) Is 0.02 or more, and the mass ratio of component D to component A (component D / component A) is 0.4 to 7.0 including both ends. Ingredient A is a (acrylate / Behenes-25 methacrylate) copolymer. Component B is a carboxyvinyl polymer and / or an alkyl-modified carboxyvinyl polymer. Ingredient C is xanthan gum. Component D is a phospholipid. Component E is water.

Further, JP-A-2016-121140 discloses a gel-like cosmetic composition containing a polyacrylic acid-based water-absorbent polymer having an average particle size of 1 to 30 μm and a water absorption ratio of 5 to 50 g / g. There is.

In addition, JP-A-2019-182841 contains components (A), (B), (C), (D), and (E), and the content of component (D) is 0.1 to 1.0% by mass. , The content of the component (B) is 0.2 to 1.2% by mass, and the mass ratio of the content of the component (B) to the content of the component (A) [component (B) / component (A)] is 1.0 to 15.0. Discloses a gel-like cosmetic composition in the form of an oil-in-water type.

The component (A) is a polymer containing at least a structural unit derived from (meth) acrylic acid and / or (meth) acrylic acid alkyl ether and a structural unit derived from (meth) acrylic acid polyoxyethylene alkyl ether.

Component (B) is a polymer containing structural units derived from acryloyldimethyltaurate.

Ingredient (C) is glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl distearate, glyceryl monoisostearate, glyceryl diisostearate, monohydroxy. One or more monoglyceryl fatty acid esters selected from the group consisting of glyceryl stearate, glyceryl monooleate, glyceryl monobehenate, and glyceryl dibehenate.

Component (D) is a fatty alcohol having 12 to 24 carbon atoms.

The component (E) is water.

Organic UV filters in Suncare cosmetics are widely used to impart UV protection to Suncare compositions. However, the use of organic UV filters can have adverse effects during application, such as imparting an oily, greasy and sticky feel. Therefore, there is a demand for sun care cosmetic compositions containing organic UV filters that impart improved textures such as fresh and refreshing textures.

WO 2018/180316 JP-A-2016-121140 JP-A-2019-182841 US 3 915 921 US 4 509 949 EP-A-750 899 US 5 089 578 EP 669 323 US 2 463 264

Self-assembling amphiphilic polyelectrolytes and their nanostructures, Chinese Journal of Polymer Science, Vol. 18, No. 40 (2000), pp. 323-336 Micelle formation of random copolymers of sodium 2- (acrylamido) -2-methylpropanesulfonate and a nonionic surfactant macromonomer in water as studied by fluorescence and dynamic light scattering, Macromolecules, Vol. 33, No. 10 (2000), pp. 3694-3704 Solution properties of micelle networks formed by nonionic polyelectrolyte: salt effects on rheological behavior --Langmuir, 2000, Vol. 16, No. 12, pp. 5324-5332 Stimuli responsive amphiphilic copolymers of sodium 2- (acrylamido) -2-methylpropanesulfonate and associative macromonomers, Polym. Preprint, Div. Polym. Chem. 1999, 40 (2), pp. 220-221 Walter Noll, Chemistry and Technology of Silicones (1968), Academic Press

An object of the present invention is to provide an oil-in-water sun care composition capable of giving a fresh and refreshing sensation to a keratin substance such as skin.

The above object of the present invention is
(a) At least one associative polymer, including one or more acrylic and / or methacrylic units.
(b) At least one neutralized poly (meth) acrylic acid polymer,
(c) At least one organic UV filter, as well as
(d) It can be achieved by an oil-in-water composition containing at least one oil.

(a) The associative polymer may further contain one or more (meth) acrylic acid (C ₁ to C ₁₂ ) alkyl ester units.

(a) The associative polymer may further comprise one or more units derived from the polyoxyalkyleneated fatty alcohol.

(b) The neutralized poly (meth) acrylic acid polymer may be a crosslinked polymer.

(b) The neutralized poly (meth) acrylic acid polymer may be homopolymer.

(b) The neutralized poly (meth) acrylic acid polymer may be partially neutralized.

(a) The amount of the associative polymer may be 0.05% by mass or more, preferably 0.1% by mass or more, more preferably 0.15% by mass or more, and particularly 0.2% by mass or more, based on the total mass of the composition. And / or 3% by mass or less, preferably 2% by mass or less, more preferably 1% by mass or less, particularly 0.5% by mass or less.

(b) The amount of the neutralized poly (meth) acrylic acid polymer is 0.05% by mass or more, preferably 0.1% by mass or more, more preferably 0.15% by mass or more, particularly 0.2% by mass, based on the total mass of the composition. It may be% or more and / or 3% by mass or less, preferably 2% by mass or less, more preferably 1% by mass or less, and particularly 0.5% by mass or less.

The mass ratio of (a) the associative polymer to (b) the neutralized poly (meth) acrylic acid polymer in the composition may be 0.5 or more, preferably 0.8 or more, particularly 0.9 or more, and / or It may be 3 or less, preferably 2 or less, particularly 1.5 or less.

(c) The amount of the organic UV filter is 3% by mass or more, preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 15% by mass or more, particularly 20 with respect to the total mass of the composition. It may be 5% by mass or more and / or 40% by mass or less, preferably 35% by mass or less, more preferably 30% by mass or less, and particularly 25% by mass or less.

(d) The amount of oil is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, still more preferably 5% by mass or more, particularly 6% by mass, based on the total mass of the composition. It may be more than or equal to, and / or 20% by mass or less, preferably 15% by mass or less, more preferably 12% by mass or less, and particularly 10% by mass or less.

The composition may further comprise at least one surfactant.

The surfactant can include a nonionic surfactant, an anionic surfactant, or a combination of a nonionic surfactant and an anionic surfactant.

The composition is 20% by mass or more, preferably 30% by mass or more, more preferably 40% by mass or more, still more preferably 45% by mass or more, particularly 50% by mass or more, based on the total mass of the composition. And / or 90% by mass or less, preferably 80% by mass or less, more preferably 70% by mass or less, particularly 60% by mass or less of water may be further contained.

The present invention is also a non-therapeutic cosmetological method for the care and / or conditioning of keratinous substances such as skin.
For keratin substances,
(a) At least one associative polymer, including one or more acrylic and / or methacrylic units.
(b) At least one neutralized poly (meth) acrylic acid polymer,
(c) At least one organic UV filter, as well as
(d) It also relates to a method comprising the step of applying an oil-in-water composition containing at least one oil.

As a result of diligent studies, we have surprisingly found that (a) an associative polymer containing one or more acrylic and / or methacrylic units of a particular thickness and (b) neutralized poly (b). The combination with the meta) acrylic acid polymer comprises a high concentration of organic UV filters, thus giving the composition an improved texture, such as less stickiness and a fresh and refreshing sensation, even when the present invention is completed. I found that I could do it.

Therefore, the composition according to the present invention is
(a) At least one associative polymer, including one or more acrylic and / or methacrylic units.
(b) At least one neutralized poly (meth) acrylic acid polymer,
(c) At least one organic UV filter, as well as
(d) An oil-in-water composition containing at least one oil.

Hereinafter, the compositions, processes, and methods according to the present invention will be described in more detail.

[Composition]
The composition can be a cosmetic composition, preferably a cosmetic composition for a keratin substance, more preferably a sun care cosmetic composition for a keratin substance. The keratin substance in the present specification means a material containing keratin as a main component, and examples thereof include skin, scalp, lips, and the like, particularly skin.

The composition according to the present invention is an oil-in-water emulsion. The form of the composition according to the present invention is not particularly limited as long as it is in the form of an oil-in-water emulsion such as an aqueous gel or an aqueous solution.

The compositions according to the invention are: (a) at least one associative polymer containing one or more acrylic and / or methacrylic units, (b) at least one neutralized poly (meth) acrylic acid polymer. It contains (c) at least one organic UV filter and (d) at least one oil. The components in the composition will be described in more detail below.

(Associative polymer)
The composition according to the invention comprises (a) at least one associative polymer comprising one or more acrylic and / or methacrylic units. A single type of associative polymer may be used, or two or more different types of associative polymers may be used in combination.

For the purposes of the present invention, the term "associative polymer" or "associative copolymer" refers to a polymer or copolymer that can be reversibly combined with each other or with other molecules in an aqueous medium.

The associative polymer of the present invention is preferably an associative copolymer of one or more acrylic and / or methacrylic units with other units.

More specifically, the associative copolymer comprises at least one hydrophilic moiety and at least one hydrophobic moiety. For the purposes of the present invention, the term "hydrophobic group" refers to at least 10 carbon atoms, preferably 10-30 carbon atoms, particularly 12-30 carbon atoms, more preferably 16-30. It means a group or polymer having a chain based on a saturated or unsaturated, linear or branched hydrocarbon containing a carbon atom.

For the purposes of the present invention, an associative copolymer comprising one or more acrylic and / or methacrylic units means that the copolymer comprises at least one acrylic acid unit or at least one methacrylic acid unit or a mixture thereof. .. The associative copolymer is an additional unit such as a unit formed of acrylic acid or methacrylic acid containing less than 6 carbon atoms, preferably an alkyl ester of acrylic acid, such as methyl acrylate, ethyl acrylate and butyl acrylate. It may contain, for example, C ₁ to C ₄ alkyl acrylates selected from (hereinafter referred to as "simple esters").

In a preferred embodiment of the invention, the associative copolymer according to the invention is one or more (meth) acrylic acid (C ₁ to C ₁₂ ) alkyl ester units, more preferably one or more (meth) acrylics. Acrylic (C ₁ to C ₆ ) contains alkyl ester units.

According to a particular embodiment, the associative copolymer according to the invention comprises one or more acrylic acid units. According to a further embodiment, the associative copolymer according to the invention comprises one or more methacrylic acid units. According to another embodiment, the associative copolymer according to the invention comprises one or more acrylic acid units and one or more methacrylic acid units.

In certain embodiments, the associative copolymer may contain another unit derived from another monomer different from (meth) acrylic acid. For example, such monomers can be esters of ethylenically unsaturated hydrophilic monomers such as (meth) acrylic acid or itaconic acid, and esters of polyoxyalkyleneated fatty alcohols. Preferably, the fatty alcohol moiety of the ester monomer is linear or branched, preferably linear, saturated or unsaturated, preferably saturated (C ₁₂ -C ₃₀ ) fatty alcohols, particularly (C ₁₆ -C). ₂₆ ) It can be fatty alcohol. The polyoxyalkylene chain of the ester monomer is preferentially composed of ethylene oxide units and / or propylene oxide units, and more specifically composed of ethylene oxide units. The number of oxyalkylene units is generally in the range of 3-100, preferably 7-50, more preferably 12-30.

The inventors of the present invention are a product sold by LUBRIZOL under the trademark name: NOVETHIX L-10 POLYMER (registered trademark) (INCI name: acrylate / Behenes-25 methacrylate polymer), and trade name: Aculyn (registered by DOW CHEMICAL). Trademark) 22 (INCI name: acrylate / steares-20 methacrylate copolymer), sold by DOW CHEMICAL under trade name: Aculyn® 88 (INCI name: acrylate / steares-20 methacrylate crosspolymer) Products sold under AKZO NOBEL, Trademark Name: STRUCTURE® 2001 (INCI Name: acrylate / Steares-20 Itaconate Polymer), and AKZO NOBEL, Trademark Name: STRUCTURE®. ) 3001 (INCI name: acrylate / ceteth-20 itaconet copolymer) can be mentioned as an associative polymer of the product sold.

The (a) associative copolymer that can be used according to the present invention may also be selected from anionic associative copolymers containing acrylic and / or methacrylic units.

The (meth) acrylic acid anionic association copolymer that can be used according to the present invention is a type such as at least one hydrophilic unit of unsaturated olefinic carboxylic acid type and (C ₁₀ to C ₃₀ ) alkyl ester of unsaturated carboxylic acid. It may be selected from those containing at least one hydrophobic unit of.

More specifically, these (meth) acrylic acid-associating copolymers preferably have an unsaturated olefinic carboxylic acid type hydrophilic unit of the following formula (I) :.

[In the formula, R ¹ indicates H or CH ₃ , that is, acrylic acid unit or methacrylic acid unit]
The hydrophobic unit of the unsaturated carboxylic acid type (C ₁₀ to C ₃₀ ) alkyl ester corresponding to the monomer of (II):

[In the formula, R ¹ represents H or CH ₃ (ie, acrylate or methacrylate units) and R ² represents C ₁₀ to C ₃₀ , preferably C ₁₂ to C ₂₂ alkyl groups].
It is selected from those corresponding to the monomers of.

More specifically as (C ₁₀ to C ₃₀ ) alkyl esters of unsaturated carboxylic acids according to formula (II), lauryl acrylates, stearyl acrylates, decyl acrylates, isodecyl acrylates and dodecyl acrylates, and the corresponding methacrylates, lauryl methacrylates, stearyls. Examples thereof include methacrylate, decyl methacrylate, isodecyl methacrylate and dodecyl methacrylate.

This type of (meth) acrylic acid-associating copolymer is described, for example, in patents US 3 915 921 and US 4 509 949 and is prepared according to them.

The (meth) acrylic acid-associating copolymers that can be used according to the present invention are, more specifically,
(i) The following equation (III):

[In the formula, R ³ indicates H or CH ₃ , R ⁴ indicates an alkyl group having 12 to 22 carbon atoms, and optionally a cross-linking agent, for example 95% to 60% by weight acrylic acid. (Hydrophilic unit), consisting of 4% to 40% by weight of C ₁₀ to C ₃₀ alkyl acrylate (hydrophilic unit) and 0 to 6% by weight of cross-linking polymerizable monomer or 98% to 96% by weight of acrylic acid. (Hydrophilic unit), 1% by mass to 4% by mass of C ₁₀ to C ₃₀ alkyl acrylate (hydrophilic unit) and 0.1% by mass to 0.6% by mass of cross-linking A cross-linking agent consisting of a polymerizable monomer]
Acrylic acid and one or more esters, or
(ii) Polymers can be shown that are formed from a mixture of monomers that essentially contain acrylic acid and lauryl methacrylate, such as products formed from 66% by weight acrylic acid and 34% by weight lauryl methacrylate.

In these embodiments of the invention, the term "crosslinking agent" is based on the following:

And can mean monomers containing at least one other polymerizable group, the unsaturated bonds of the monomers are not conjugate to each other. Examples of the cross-linking agent that can be used according to the present invention include polyallyl ethers such as polyallyl sucrose and polyallyl pentaerythritol.

Among the above-mentioned (meth) acrylic acid-associating copolymers, the products sold by Goodrich under the trade names Pemulen TR1, Pemulen TR2, Carbopol 1382, and more preferably Pemulen TR1, and the products sold by S.E.P.C. under the name Coatex SX. The products described above are particularly preferred for the present invention.

As a (meth) acrylic acid-associated copolymer, a copolymer of ethoxylated alcohol of methacrylic acid / methyl acrylate / dimethyl-meth-isopropenylbenzyl isocyanate, which is sold by Amerchol under the name Viscophobe DB 1000, can also be mentioned.

Other (meth) acrylic acid associated copolymers that can be used according to the present invention contain at least one (meth) acrylic acid monomer having a sulfonic acid group in free form or in a partially or completely neutralized form. It can also be a sulfonic acid polymer containing at least one hydrophobic moiety.

The hydrophobic moiety present in the sulfonic acid polymer that can be used according to the present invention preferably has 8 to 22 carbon atoms, more preferably 8 to 18 carbon atoms, and more specifically 12 to 18 carbon atoms. including.

Preferentially, these sulfonic acid polymers that can be used according to the present invention are either by an inorganic base (sodium hydroxide, potassium hydroxide or aqueous ammonia) or by mono-, di- or triethanolamine, aminomethylpropanediol, N. -Partially or completely neutralized with organic bases such as methylglucamine, basic amino acids such as arginine and lysine, and with mixtures of these compounds.

These sulfonic acid polymers are generally in the range of 1000 to 20 000 000 g / mol, preferably in the range of 20 000 to 5 000 000 g / mol, and even more preferably in the range of 100 000 to 1 500 000 g / mol. Has a molecular weight.

The sulfonic acid polymer that can be used according to the present invention may or may not be crosslinked. Crosslinked polymers are preferably selected.

When cross-linked, the cross-linking agent can be selected from polyolefin unsaturated compounds commonly used to cross-link the polymer obtained by free radical polymerization. For example, divinylbenzene, diallyl ether, dipropylene glycol diallyl ether, polyglycol diallyl ether, triethylene glycol divinyl ether, hydroquinone diallyl ether, ethylene glycol diacrylate di (meth) acrylate or tetraethylene glycol diacrylate di (meth) acrylate, From trimethylolpropane triacrylate, methylenebisacrylamide, methylenebismethacrylicamide, triallylamine, triallyl cyanurate, diallyl maleate, tetraallylethylenediamine, tetraallyloxyethane, trimethylolpropanedialyl ether, allyl (meth) acrylate, saccharides Alcohol allyl ethers, or other allyl or vinyl ethers of polyfunctional alcohols, allyl esters of phosphates and / or vinylphosphonic acid derivatives, or mixtures of these compounds can be mentioned.

Methylenebisacrylamide, allyl methacrylate or trimethylolpropane triacrylate (TMPTA) are more specifically used.

The degree of cross-linking is generally in the range of 0.01 mol% to 10 mol%, more specifically 0.2 mol% to 2 mol%, based on the polymer.

The (meth) acrylic acid monomers having a sulfonic acid group of sulfonic acid polymers that can be used according to the present invention are, among other things, (meth) acrylamide (C ₁ to C ₂₂ ) alkyl sulfonic acid and N- (C ₁ to C ₂₂ ) alkyl ( It is selected from meta) acrylamide (C ₁ to C ₂₂ ) alkyl sulfonic acids, such as undecylacrylamide methane sulfonic acid, and from its partially or completely neutralized form.

(Meta) acrylamide (C ₁ to C ₂₂ ) Alkyl sulfonic acid, for example, acrylamide methane sulfonic acid, acrylamide ethane sulfonic acid, acrylamide propane sulfonic acid, 2-acrylamide-2-methyl propane sulfonic acid, methacrylicamide-2-methyl propane Sulfonic acid, 2-acrylamide-n-butane sulfonic acid, 2-acrylamide-2,4,4-trimethylpentane sulfonic acid, 2-methacrylamide dodecyl sulfonic acid or 2-acrylamide-2,6-dimethyl-3-heptane sulfonic acid Acids, and their partially or completely neutralized forms, are used more preferentially. 2-acrylamide-2-methylpropanesulfonic acid (AMPS), as well as its partially or completely neutralized form, is used even more specifically.

The (meth) acrylic acid-associating thickeners that can be used according to the present invention are C ₆ to C ₂₂ n-mono such as those described in patent application WO 00/31154 (forming an essential part of the description). It can be specifically selected from random amphipathic AMPS polymers modified by reaction with alkylamines or C ₆ -C ₂₂ di-n-alkylamines.

These polymers are, for example, (meth) acrylic acids, their β-substituted alkyl derivatives, or their esters obtained with monoalcohols or mono- or polyalkylene glycols, (meth) acrylamide, vinylpyrrolidone, maleic anhydride. , Itaconic acid, or maleic acid, or other ethylenically unsaturated hydrophilic monomers selected from mixtures thereof.

The (meth) acrylic acid-associated thickener having a sulfonic acid group, which can be particularly preferably used according to the present invention, preferably contains AMPS and 8 to 50 carbon atoms, more preferably 8 to 22 carbon atoms. An amphoteric copolymer with at least one ethylenically unsaturated hydrophobic monomer containing at least one hydrophobic moiety containing 8 to 18 carbon atoms, more particularly 12 to 18 carbon atoms. Is selected from.

These same copolymers also include (meth) acrylic acids, their β-substituted alkyl derivatives, or their esters obtained with monoalcohols or mono- or polyalkylene glycols, (meth) acrylamide, vinylpyrrolidone, maleic anhydride. It may also contain one or more ethylenically unsaturated monomers free of fat chains, such as acids, itaconic acid or maleic acid, or mixtures of these compounds.

These copolymers are described, among other things, in patent application EP-A-750 899, patent US5 089 578 and the following announcement by Yotaro Morishima.
--Self-assembling amphiphilic polyelectrolytes and their nanostructures, Chinese Journal of Polymer Science, Vol. 18, No. 40 (2000), pp. 323-336;
--Micelle formation of random copolymers of sodium 2- (acrylamido) -2-methylpropanesulfonate and a nonionic surfactant macromonomer in water as studied by fluorescence and dynamic light scattering, Macromolecules, Vol. 33, No. 10 (2000), pp. 3694-3704;
--Solution properties of micelle networks formed by nonionic polyelectrolyte: salt effects on rheological behavior --Langmuir, 2000, Vol. 16, No. 12, pp. 5324-5332;
--Stimuli responsive amphiphilic copolymers of sodium 2- (acrylamido) -2-methylpropanesulfonate and associative macromonomers, Polym. Preprint, Div. Polym. Chem. 1999, 40 (2), pp. 220-221.

The ethylenically unsaturated hydrophobic monomers of these particular copolymers have the following formula (IV):

[In the formula, R ⁵ and R ⁷ may be the same or different, indicating a hydrogen atom or a linear or branched C ₁ to C ₆ alkyl group (preferably methyl), where Y is O or Indicates NH, where R ⁶ is at least 8-50 carbon atoms, more preferentially 8-22 carbon atoms, even more preferentially 6-18 carbon atoms, more specifically 12-18. Indicates a hydrophobic hydrocarbon-based group containing a single carbon atom, where x indicates the number of moles of the alkylene oxide and ranges from 0 to 100].
Is preferably selected from acrylates or acrylamides of.

R ⁶ groups are linear C ₆ to C ₁₈ alkyl groups (eg n-hexyl, n-octyl, n-decyl, n-hexadecyl, n-dodecyl) or branched or cyclic C ₆ to C ₁₈ alkyl. From a group (eg, cyclododecane (C ₁₂ ) or adamantan (C ₁₀ )) to a C ₆ to C ₁₈ pentafluoroalkyl group (eg, a group of formula-(CH ₂ ) _2- (CF ₂ ) ₉ -CF ₃ ). From the cholesteryl group (C ₂₇ ) or cholesterol ester residue, such as the cholesteryloxyhexanoate group, preferably from aromatic polycyclic groups such as naphthalene or pyrene. Of these groups, more specifically preferred are linear alkyl groups, more specifically n-dodecyl groups.

According to a particularly preferred embodiment of the invention, the monomer of formula (IV) comprises at least one alkylene oxide unit (x ≧ 1), preferably a polyoxyalkylene chain. The polyoxyalkylene chain is preferentially composed of ethylene oxide units and / or propylene oxide units, and more specifically composed of ethylene oxide units. The number of oxyalkylene units is generally in the range of 3 to 100, more preferably 3 to 50, and even more preferably 7 to 25.

Of these polymers, the following may be mentioned:
—— 15% to 60% by weight AMPS unit and 40% to 85% by weight (C ₈ to C ₁₆ ) alkyl (meth) acrylamide units or (C ₈ to C ₁₆ ) alkyl (meth) acrylate to polymer Copolymers containing units, which may or may not be crosslinked and may or may not be neutralized, eg, those described in patent application EP-A-750 899;
—— A terpolymer containing 10 mol% to 90 mol% acrylamide units, 0.1 mol% to 10 mol% AMPS units and 5 mol% to 80 mol% n- (C ₆ to C ₁₈ ) alkyl acrylamide units, eg patent US-5 089. Those listed in 578.

Completely neutralized copolymers of AMPS and dodecyl methacrylate, as well as crosslinked and non-crosslinked copolymers of AMPS and n-dodecylmethacrylamide, such as those described in the Morishima paper described above can also be mentioned. ..

The following formula (V):

[In the formula, X ⁺ is a proton, alkali metal cation, alkaline earth metal cation or ammonium ion]
2-acrylamide-2-methylpropanesulfonic acid (AMPS) units and
Equation (VI):

[In the equation, x indicates an integer in the range of 3 to 100, preferably 5 to 80, more preferably 7 to 25, and R ⁵ has the same meaning as that shown in the above equation (IV). R ⁸ indicates linear or branched C ₆ to C ₂₂ , more preferentially C ₁₀ to C ₂₂ alkyl]
Examples include copolymers composed of units of.

Preferred polymers have x = 25, where R ⁵ represents methyl and R ⁸ represents n-dodecyl, which are described in the Morishima paper described above.

Further, in formula (IV), x = 20-25, R ⁵ represents methyl, R ⁸ represents a C ₁₂ -C ₂₄ alkyl group, preferably, for example, a lauryl group, a myristyl group, a palmityl group, a stearyl group or The use of a monomer representing a behenyl group is particularly preferred. In particular, it is particularly preferable to use a monomer of the formula (IV) in which x = 20 to 25, R ⁵ represents methyl, and R ⁸ represents a C ₁₆ to C ₂₄ alkyl chain such as a stearyl group or a behenyl group.

Polymers in which X ⁺ represents sodium or ammonium are more specifically preferred.

The (a) associative polymer of the present invention is present in an amount of 0.05% by mass or more, preferably 0.1% by mass or more, more preferably 0.15% by mass or more, and particularly 0.2% by mass or more, based on the total mass of the composition. It may be present in an amount of 3% by mass or less, preferably 2% by mass or less, more preferably 1% by mass or less, and particularly 0.5% by mass or less.

(Neutralized poly (meth) acrylic acid polymer)
The composition according to the invention comprises (b) at least one neutralized poly (meth) acrylic acid polymer. A single type of neutralized poly (meth) acrylic acid polymer may be used, or two or more different types of neutralized poly (meth) acrylic acid polymers may be used in combination.

The neutralized poly (meth) acrylic acid polymer of the present invention may have water absorption properties. Therefore, the neutralized poly (meth) acrylic acid polymer may be a water-absorbent polymer.

In one particular embodiment of the invention, the neutralized poly (meth) acrylic acid polymer is 10 g or more, preferably 20 g or more, more preferably 50 g or more, and / or more per 1 g of the polymer at 25 ° C. and 1 atm. Alternatively, it may have a water absorption capacity of 2000 g or less, preferably 1500 g or less, and more preferably 1000 g or less.

The neutralized poly (meth) acrylic acid polymer can be provided in the form of particles, preferably in the form of spherical particles. The average primary particle size D50 of the neutralized poly (meth) acrylic acid polymer is not particularly limited, but is generally 0.1 μm or more, preferably 0.5 μm or more, more preferably 1 μm or more, and / or 200 μm or less, preferably 200 μm or less. Is 100 μm or less, more preferably 50 μm or less. The term "D50" as used herein means that 50% by volume of particles is D50 or less with respect to the total volume of particles and 50% by volume of particles is greater than D50 with respect to the total volume of particles. .. The D50 value can be determined by laser diffraction using, for example, a laser diffraction particle size distribution analyzer such as Mastersizer 2000 manufactured by Malvern Corp.

The neutralized poly (meth) acrylic acid polymer may be water soluble. Therefore, the neutralized poly (meth) acrylic acid polymer may be contained in the aqueous phase of the O / W type emulsion composition of the present invention.

The neutralized poly (meth) acrylic acid polymer of the present invention may be completely or partially neutralized. Preferably, the neutralized poly (meth) acrylic acid polymer is partially neutralized. The molar ratio of the neutralized portion to the non-neutralized portion is not particularly limited, but is generally 10 mol% or more, 20 mol% or more, 30 mol% or more, or 40 mol% or more, and / or 90 mol% or less, 80 mol% or less. , 70 mol% or less, or 60 mol% or less.

The neutralized poly (meth) acrylic acid polymer may be a homopolymer or a copolymer. Preferably, the neutralized poly (meth) acrylic acid polymer is a homopolymer.

The neutralized poly (meth) acrylic acid polymer may be crosslinked.

In a preferred embodiment of the invention, the neutralized poly (meth) acrylic acid polymer is a crosslinked homopolymer. In particular, sodium polyacrylate sold under the name AQUPEC MG N40R, which is cross-linked, partially neutralized and also called carbomer sodium, can be mentioned.

(b) The neutralized poly (meth) acrylic acid polymer is 0.05% by mass or more, preferably 0.1% by mass or more, more preferably 0.15% by mass or more, and particularly 0.2% by mass or more, based on the total mass of the composition. And / or may be present in an amount of 3% by mass or less, preferably 2% by mass or less, more preferably 1% by mass or less, particularly 0.5% by mass or less.

The mass ratio of (a) the associative polymer to (b) the neutralized poly (meth) acrylic acid polymer in the composition is not particularly limited. In a preferred embodiment of the invention, the mass ratio of (a) associated polymer to (b) neutralized poly (meth) acrylic acid polymer in the composition is 0.5 or greater, preferably 0.8 or greater, particularly 0.9 or greater. Yes and / or 3 or less, preferably 2 or less, especially 1.5 or less.

(Organic UV filter)
The composition according to the invention can include at least one (c) organic UV filter. A single type of organic UV filter may be used, but two or more different types of organic UV filters may be used in combination.

The term "UV" as used herein means ultraviolet light and includes the region UV-B (wavelength 260-320 nm) and the region UV-A (wavelength 320-400 nm). Thus, the UV filter means any material that has an ultraviolet shielding effect at wavelengths in the UV-A and / or UV-B regions.

The UV filters used for the present invention are active in the UV-A and / or UV-B regions, preferably in both the UV-A and UV-B regions, alone or in combination. obtain. Therefore, the UV filters used in the present invention include a UV-A filter capable of absorbing UV irradiation of 320 to 400 nm, a UV-B filter capable of absorbing UV irradiation of 280 to 320 nm, and a UV-B filter capable of absorbing UV irradiation of 280 to 320 nm. Examples include UV-A and UV-B filters capable of absorbing UV irradiation of 280-400 nm.

The organic UV filter used for the present invention can be a lipophilic organic UV filter and / or a hydrophilic organic UV filter. Preferably, the composition according to the invention comprises at least one lipophilic organic UV filter, more preferably a combination of at least one lipophilic organic UV filter and at least one hydrophilic organic UV filter.

(i) Lipophilic Organic UV Filters The term "lipophilic organic UV filters" as used herein is at least 1% by weight of the total mass of oil at room temperature (25 ° C) and atmospheric pressure ⁽ 105 Pa). Means an organic UV filter that is soluble in oil at a concentration of. Therefore, the lipophilic organic UV filter is present in the oily phase of the present invention.

Examples of the lipophilic organic UV-A filter used in the present invention include, but are not limited to, aminobenzophenone compounds, dibenzoylmethane compounds, anthranilic acid compounds and 4,4-diarylbutadiene compounds.

As an aminobenzophenone compound, n-hexyl 2- (4-diethylamino-2-hydroxybenzoyl) benzoate is available, and the alternative name is diethylaminohydroxybenzoylhexylbenzoate (DHHB) sold by BASF under the trade name "Uvinul A +". ) Can be mentioned.

As dibenzoylmethane compounds, 4-isopropyldibenzoylmethane sold by Merck under the name "Eusolex 8020" and 1- (4-methoxy-1-benzofuran) sold by Quest under the name "Pongamol". -5-yl) -3-phenylpropane-1,3-dione, 1- (4- (tert-butyl) phenyl) -3- (2-hydroxyphenyl) propane-1,3-dione, and Hoffmann-La One example is butylmethoxydibenzoylmethane sold by Roche under the trade name "Parsol 1789".

Examples of the anthranilic acid compound include menthyl anthranilate marketed by Symrise under the name "NEO HELIPAN MA".

Examples of the 4,4-diarylbutadiene compound include 1,1-dicarboxy (2,2'-dimethylpropyl) -4,4-diphenylbutadiene, and diphenylbutadiene malonate and malononitrile.

The lipophilic organic UV-B filter used in the present invention includes triazine compound, para-aminobenzoic acid compound, salicylic acid compound, cinnamate compound, β, β-diphenylacrylate compound, benziliden camphor compound, phenylbenzimidazole compound and imidazoline. Examples include, but are not limited to, compounds, benzalmalonate compounds and merocyanine compounds.

As triazine compounds, ethylhexyltriazone, marketed by BASF under the name "UVINUL T-150", diethylhexylbutamidotriazone, marketed by SIGMA 2V under the name "UVASORB HEB", 2,4, 6-Tris (dineopentyl 4'-aminobenzalmaronate)-s-triazine, 2,4,6-tris (diisobutyl 4'-aminobenzalmaronate)-s-triazine, 2,4-bis (dineopentyl 4) '-Aminobenzalmaronate) -6- (n-butyl 4'-aminobenzoate) -s-triazine, 2,4-bis (n-butyl 4'-aminobenzoate) -6- (aminopropyltrisiloxane) -s-Triazine can be mentioned.

Para-aminobenzoic acid derivatives include para-aminobenzoate (PABA), such as ethyl PABA (para-aminobenzoate), ethyldihydroxypropyl PABA, and ethylhexyldimethyl PABA marketed by ISP under the name "ESCALOL 5972". be able to.

Examples of the salicylic acid compound include homosalate marketed by Rona / EM industries under the name "Eusolex HMS" and ethylhexyl salicylate marketed by Symrise under the name "NEO HELIOPAN OS".

As cinnamate compounds, ethylhexylmethoxycinnamate and isopropylethoxycinnamate marketed by DSM NUTRITIONAL PRODUCTS under the name "PARSOL CX" and isoamylmethoxycinnamate marketed by Symrise under the name "NEO HELIOPAN E 1000". , Diisopropylmethylcinnamate, cinoxate and glycerylethylhexanoate dimethoxycinnamate.

Examples of the β, β-diphenylacrylate compound include octocrylene marketed by BASF under the name “UVINUL N539” and etocrylene marketed by BASF under the name “UVINUL N35”.

As a benziliden camphor compound, 3-benziliden camphor marketed under the name "MEXORYL SD" by CHIMEX, methyl benziliden camphor marketed under the name "EUSOLEX 6300" by MERCK, and "MEXORY L SW" by CHIMEX. Examples include polyacrylamide methylbenzidene camphor marketed by name and terephthalylidene camphor sulfonic acid marketed by Chimex under the name "Mexoryl SX".

As phenylbenzimidazole compounds, phenylbenzimidazole sulfonic acid marketed by Merck under the name "Eusolex 232" and phenyldivene imidazole tetrasulfone marketed by Haarmann and Reimer under the name "Neo Heliopan AP". Benzimidazole can be mentioned.

Examples of the imidazoline compound include ethylhexyl dimethoxybenzylidendioxoimidazoline propionate.

As benzalmalonate compounds, polyorganosiloxanes containing a benzalmalonate moiety, such as polysilicone-15 marketed by DSM NUTRITIONAL PRODUCTS under the name "Parsol SLX", and di-neopentyl 4'-methoxyben Zalmaronate can be mentioned.

The lipophilic organic UV filter of the present invention may include lipophilic UV-A and UV-B filters. The following are non-limiting examples of lipophilic organic UV-A and UV-B filters:
--Benzophenone compounds, such as benzophenone-1, marketed by BASF under the name "UVINUL 400", benzophenone-2 marketed by BASF under the name "UVINUL 500", and named "UVINUL M40" by BASF. Benzophenone-3 or Oxybenzone marketed in Japan, Benzophenone-6 marketed by Norquay under the name "Helisorb 11", Benzophenone marketed by American Cyanamid under the name "Spectra-Sorb UV-24"- 8, Benzophenone-10, Benzophenone-11, and Benzophenone-12,
--Benzotriazole compounds, such as drometrizoletrisiloxane marketed under the name "Silatrizole" by Rhodia Chimie and bumetrizole marketed under the name "TINOGUARTD AS" by CIBA-GEIGY, and "TINOSORB" by BASF. 2,2'-Methylenebis [6- (2H-benzotriazole-2-yl) -4- (1,1,3,3-tetramethyl-butyl) phenol] (methylenebis-benzotria) commercially available in M " Zoryltetramethylbutylphenol),
--Bis-resolcinyltriazine compounds, such as bis-ethylhexyloxyphenol methoxyphenyltriazine, which is marketed by CIBA-GEIGY under the name "TINOSORB S", and
--Benzoxazole compounds, such as 2,4-bis [5- (1-dimethylpropyl) benzoxazole-2-yl (4-phenyl) imino] marketed by Sigma 3V under the name "Uvasorb K2A"- 6- (2-Ethylhexyl) imino-1,3,5-triazine.

Preferably, the lipophilic organic UV filter of the present invention is selected from a combination of at least one lipophilic organic UV-A filter and at least one lipophilic organic UV-B filter.

In one embodiment of the present invention, the oil-based organic UV filter is added to the composition in an amount of 3% by mass or more, preferably 5% by mass or more, more preferably 10% by mass or more, based on the total mass of the composition. More preferably, it may be present in an amount of 15% by mass or more, particularly 20% by mass or more, and / or 40% by mass or less, preferably 35% by mass or less, more preferably 30% by mass or less, particularly 25% by mass. It may be present in the following amounts.

(ii) Hydrophilic Organic UV Filter The term "hydrophilic organic UV filter" is used herein at least 1% by weight with respect to the total mass of water at room temperature (25 ° C) and atmospheric pressure ⁽ 105 Pa). Means an organic UV filter that is soluble in water at a concentration of. Therefore, the hydrophilic organic UV filter is present in the aqueous phase of the present invention.

Hydrophilic organic UV-A filters include, but are not limited to:
Tereftalylidene dikanfer sulfonic acid and its salts, such as those manufactured by Chimex under the name "Mexoryl SX",

Bisbenzoxazolyl derivatives, such as those described in patents EP 669 323 and US 2 463 264, more specifically the compound phenyldibenzimidazole tetrasulfone sold by Haarmann and Reimer under the trade name "Neo Heliopan AP". Disodium acid acid and its salts.

Hydrophilic organic UV-B filters include, but are not limited to:
p-Aminobenzoic acid (PABA) derivatives such as PABA, glyceryl PABA and PEG-25 PABA, and salts thereof, such as those sold by BASF under the name "Uvinul P25",
Phenylbenzimidazole sulfonic acid and its salts, such as those sold under the trade name "Eusolex 232" by Merck, in particular,
Ferulic acid and its salts,
Salicylic acid and its salts,
Ocyl methoxycinnamic acid DEA and its salts,
Benzylidene camphorsulfonic acid and its salts, such as those manufactured by Chimex under the name "Mexoryl SL",
Camphor benzalkonium methosulfate and its salts, such as those manufactured by Chimex under the name "Mexoryl SO".

Hydrophilic organic UV-A and UV-B filters include, but are not limited to:
Benzophenone-4 and its salts, such as those sold by BASF under the trade name "Uvinul MS40",
Benzophenone-5 and its salts, and benzophenone-9 and its salts.

Salts of compounds that may be used are specifically alkali metals such as sodium or potassium salts; alkaline earth metals such as calcium, magnesium or strontium salts; metals such as zinc, aluminum, manganese or copper. Salts; Salts of ammonium of formula NH ⁴⁺ ; Salts of quaternary ammonium; Salts of organic amines, eg methylamine, dimethylamine, trimethylamine, triethylamine, ethylamine, 2-hydroxyethylamine, bis (2-hydroxyethyl) Amine or tris (2-hydroxyethyl) amine salt; selected from lysine or arginine salts. Preferably, a salt selected from salts of sodium, potassium, magnesium, strontium, copper, manganese or zinc is used. Priority is given to sodium salts.

In one embodiment of the present invention, the hydrophilic organic UV filter is contained in the composition in an amount of 0.1% by mass or more, more preferably 0.5% by mass or more, still more preferably 1% by mass or more, based on the total mass of the composition. In particular, it may be present in an amount of 2% by mass or more, and / or may be present in an amount of 7% by mass or less, preferably 5% by mass or less, particularly 4% by mass or less.

(c) The organic UV filter is 3% by mass or more, preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 15% by mass or more, particularly 20% by mass, based on the total mass of the composition. It may be present in the above amount and / or in an amount of 40% by mass or less, preferably 35% by mass or less, more preferably 30% by mass or less, and particularly 25% by mass or less.

(oil)
The composition according to the invention may contain at least one oil. If more than one oil is used, they may be the same or different.

As used herein, "oil" means a fatty compound or fatty substance in the form of a liquid or paste (non-solid) at room temperature (25 ° C) under atmospheric pressure (760 mmHg). Oils commonly used in cosmetics can be used alone or in combination thereof. These oils may be volatile or non-volatile. Preferably, the oil is different from the UV filter.

The oil can form the oily phase of the O / W emulsion of the composition according to the invention. Therefore, the oily phase of the composition comprises oil.

The oil may be a non-polar oil such as hydrocarbon oil or silicone oil, a polar oil such as vegetable oil or animal oil, and a polar oil such as ester oil or ether oil, or a mixture thereof.

The oil may be selected from the group consisting of plant or animal derived oils, synthetic oils, silicone oils, hydrocarbon oils and fatty alcohols.

Examples of vegetable oils are, for example, flaxseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, southern ka oil, sunflower oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil. , Soybean oil, peanut oil, and mixtures thereof.

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

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

Ester oils are preferably saturated or unsaturated linear or branched C ₁ to C ₂₆ aliphatic monoacids or polyacids and saturated or unsaturated linear or branched C ₁ to C ₂₆ . It is a liquid ester with an aliphatic monovalent alcohol or a polyhydric alcohol, and the total number of carbon atoms of these esters is 10 or more.

Preferably, in the case of an ester of a monohydric alcohol, at least one of the alcohols and acids from which the ester of the present invention is derived is branched.

Among the monoesters of monoacids and monohydric alcohols, ethyl palmitate, ethylhexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristate, such as isopropyl myristate or ethyl myristate, isosetyl stearate, 2-ethylhexyl isononanoate, Examples thereof include isononyl isononanoate, isodesyl neopentate and isostearyl neopentate.

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

Specific examples include: diethyl sevacinate, isopropyl lauroyl sarcosin isopropyl, diisopropyl sevacinate, bis sevacinate (2-ethylhexyl), diisopropyl adipate, di-n-propyl adipate, dioctyl adipate, bis adipate ( 2-Ethylhexyl), diisostearyl adipate, bis maleate (2-ethylhexyl), triisopropyl citrate, triisocetyl citrate, triisostearyl citrate, glyceryl trilactic acid, glyceryl trioctanoate, trioctyldodecyl citrate, citrate Trioleyl acid, neopentyl glycol diheptate, and diethylene glycol diisononanonate.

As the ester oil, sugar esters and diesters of C ₆ to C ₃₀ , preferably C ₁₂ to C ₂₂ fatty acids can be used. The term "sugar" means an oxygen-retaining hydrocarbon compound that contains several alcohol functional groups, has or does not have an aldehyde or ketone functional group, and contains at least 4 carbon atoms. Recall what to do. These sugars can be monosaccharides, oligosaccharides, or polysaccharides.

Examples of suitable sugars that can be mentioned include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose and lactose, and their derivatives, especially alkyl derivatives such as methyl derivatives. , An example is methyl glucose.

The sugar ester of the fatty acid is, in particular, a group containing an ester or a mixture of the above-mentioned sugar and a linear or branched saturated or unsaturated C ₆ to C ₃₀ , preferably C ₁₂ to C ₂₂ fatty acid. You can choose from. These compounds, if unsaturated, can have 1 to 3 conjugated or unconjugated carbon-carbon double bonds.

Esters in this modified form may also be selected from monoesters, diesters, triesters, tetraesters, and polyesters, as well as mixtures thereof.

These esters include, for example, oleic acid ester, lauric acid ester, palmitic acid ester, myristic acid ester, behenic acid ester, coconut fatty acid ester, stearic acid ester, linoleic acid ester, linolenic acid ester, capric acid ester, and arachidonic acid. It may be an ester, or a mixture thereof, for example, a mixed ester of oleopalmitic acid, oleostearic acid, and palmitostearic acid, and pentaerythrityl tetraethylhexanoate.

More specifically, monoesters and diesters, especially monooleic or dioleic acids of sucrose, glucose, or methylgluco, stearic acid esters, behenic acid esters, oleopalmitic acid esters, linoleic acid esters, linolenic acid esters, and Oreostearate ester is used.

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

Examples of preferred ester oils include, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanate, octyldodecyl octanate, isodecyl neopentate, myristyl propionate, 2-ethylhexanoic acid 2. -Ethylhexyl, 2-ethylhexyl octanoate, (caprylic acid / capric acid) 2-ethylhexyl, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprilyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, lauric acid Isohexyl, hexyl laurate, isosetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, tri (2-ethylhexanoic acid) glyceryl, tetra (2-ethylhexanoic acid) pentaerythrityl, 2-ethylhexyl succinate, Diethyl sebacate, and mixtures thereof, can be mentioned.

Examples of ether oils include, for example, ether oils having a short chain of hydrocarbons, such as dicaprylyl ether.

Examples of artificial triglycerides include, for example, capryl caprylic acid glyceride, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, tri (capric acid / caprylic acid) glyceryl and Tri (caprylic acid / caprylic acid / linolenic acid) glyceryl can be mentioned.

Examples of silicone oils include linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, etc., and cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethyl. Cyclopentasiloxane, dodecamethylcyclohexasiloxane and the like, and mixtures thereof can be mentioned.

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

These silicone oils may also be organically modified. The organically modified silicones that can be used in accordance with the present invention are the silicone oils defined above and include, in their structure, one or more organic functional groups attached via hydrocarbon-based groups.

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

When volatile, silicones are more specifically selected from those having a boiling point between 60 ° C and 260 ° C.

Non-volatile polydialkylsiloxanes may also be used. More specifically, these non-volatile silicones are selected from polydialkylsiloxanes, among which polydimethylsiloxanes having a predominantly trimethylsilyl terminal group can be mentioned.

Among these polydialkylsiloxanes, the following commercial products can be mentioned without limitation:
--47 and 70 047 series Silbione® oils or Mirasil® oils sold by Rhodia, such as oil 70 047 V 500 000;
--Mirasil® series oil sold by Rhodia;
--Dow Corning 200 series oils, such as DC200 with a viscosity of 60000 mm ² / s;
--General Electric's Viscasil® oil, and General Electric's SF series (SF 96, SF 18) specific oils.

Polydimethylsiloxane containing a dimethylsilanol end group, known by the name Dimethiconol (CTFA), such as Rhodia's 48 Series oils can also be mentioned.

Among the silicones containing an aryl group, polydiarylsiloxane, particularly polydiphenylsiloxane and polyalkylarylsiloxane, for example, phenylsilicone oil can be mentioned.

Examples that can be given are products sold under the following names:
--Rhodia 70 641 Series Silbione® Oil,
--Rhodia Rhodorsil® 70 633 and 763 series oils,
--Dow Corning Oil Dow Corning 556 Cosmetic Grade Fluid,
--Bayer PK series silicones, such as PK20 products,
--Specific oils in the SF series from General Electric, such as SF 1023, SF 1154, SF 1250, and SF 1265.

As the phenylsilicone oil, phenyltrimethicone is preferable.

The organically modified liquid silicone may contain, among other things, polyethylene oxy and / or polypropylene oxy groups. Therefore, the silicone KF-6017 proposed by Shin-Etsu Chemical Co., Ltd. and the oils Silwet® L722 and L77 manufactured by Union Carbide can be mentioned.

Hydrocarbon oils can be selected from:
—— Linear or branched, optionally cyclic, C ₆ to C ₁₆ lower alkanes. Examples can be hexane, undecane, dodecane, tridecane, and isoparaffin, such as isohexadecane, isododecane and isodecane, and
—— Linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffin, liquid petrolatum, polydecene and hydrogenated polyisobutene, such as Parleam®, and squalane.

Preferred examples of hydrocarbon oils include, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oils (eg liquid paraffin), paraffin, petrolatum or petrolatum, naphthalene and the like; hydropolyisobutene, Isoeicosan, and decene / butene copolymers; and mixtures thereof can be mentioned.

The term "fat" in fatty alcohols means to include a relatively large number of carbon atoms. Therefore, alcohols having 4 or more, preferably 6 or more, more preferably 12 or more carbon atoms are included in the range of fatty alcohols. The fatty alcohol may be saturated or unsaturated. The fatty alcohol may be linear or branched.

The fatty alcohol contains structural R-OH (in the formula, R is 4 to 40 carbon atoms, preferably 6 to 30 carbon atoms, more preferably 12 to 20 carbon atoms, saturated and unsaturated. Saturated, can have (chosen from linear and branched groups). In at least one embodiment, R can be selected from C ₁₂ to C ₂₀ alkyl groups and C ₁₂ to C ₂₀ alkenyl groups. R may or may not be substituted with at least one hydroxyl group.

Examples of fatty alcohols include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, oleyl alcohol, linoleil alcohol, palmitrail alcohol, arachidnyl alcohol, Elsyl alcohols and mixtures thereof can be mentioned.

It is preferable that the fatty alcohol is a saturated fatty alcohol.

Thus, the fatty alcohols are linear or branched, saturated or unsaturated C ₆ to C ₃₀ alcohols, preferably linear or branched, saturated C ₆ to C ₃₀ alcohols, more preferably straight. You can choose from chained or branched, saturated C ₁₂ to C ₂₀ alcohols.

The term "saturated fatty alcohol" as used herein means an alcohol having a long chain of aliphatic saturated carbons. It is preferred that the saturated fatty alcohol be selected from any linear or branched saturated C ₆ -C ₃₀ fatty alcohol. Among the linear or branched saturated C ₆ to C ₃₀ fatty alcohols, the linear or branched saturated C ₁₂ to C ₂₀ fatty alcohols may be preferably used. Any linear or branched saturated C ₁₆ -C ₂₀ fatty alcohol may be more preferably used. Branched C ₁₆ -C ₂₀ fatty alcohols may be used even more preferably.

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

(d) The oil is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, still more preferably 5% by mass or more, and particularly 6% by mass or more, based on the total mass of the composition. It may be present in an amount and / or in an amount of 20% by mass or less, preferably 15% by mass or less, more preferably 12% by mass or less, particularly 10% by mass or less.

(water)
The composition according to the present invention may contain water. Water can form the aqueous phase of the O / W emulsion of the present invention. Therefore, the aqueous phase of the composition may include water.

Water is present in an amount of 20% by mass or more, preferably 30% by mass or more, more preferably 40% by mass or more, still more preferably 45% by mass or more, and particularly 50% by mass or more, based on the total mass of the composition. And / or may be present in an amount of 90% by mass or less, preferably 80% by mass or less, more preferably 70% by mass or less, and particularly 60% by mass or less.

(Surfactant)
The composition according to the invention may contain at least one surfactant selected from amphoteric, anionic, cationic or nonionic surfactants, which can be used alone or as a mixture. Preferably, the composition comprises at least one nonionic surfactant. Preferably, the composition comprises at least one anionic surfactant. Preferably, the composition comprises a combination of at least one nonionic surfactant and at least one anionic surfactant.

Examples of nonionic surfactants that can be used in the compositions of the present invention include polyethoxylyylated fatty alcohols or polyglycerolylated fatty alcohols, such as ethylene oxide adducts with lauryl alcohols, especially 9-50. Polyethylenes and fatty acids containing oxyethylene units (INCI names Laures-9 to Laures-50), specifically Laures-9; for example having saturated or unsaturated chains containing 8-24 carbon atoms. Esters and their oxyalkyleneized derivatives, ie those containing oxyethylene units and / or oxypropylene units, such as esters of glycerol and C ₈ to C ₂₄ fatty acids and their oxyalkyleneized derivatives, specifically poly. Oxyethyleneylated stearic acid (mono-, di-and / or tristearic acid) glyceryl, eg PEG-20 glyceryl triisostearate; esters of sugars with C ₈ -C ₂₄ fatty acids and their oxyalkyleneized derivatives, eg C Polyethyleneylated sorbitol esters of ₈ to C ₂₄ fatty acids, specifically polysorbate 80 such as products marketed by Croda under the name "TWEEN 80®"; sugars and C ₈ to C ₂₄ fatty alcohols. Ethers such as caprylyl / capryl glucoside; hydrophobic polysaccharides; polyoxyethylene alkyl ethers; polyoxyethylene oxypropylene alkyl ethers; fatty acid alkanolamides; alkylamine oxides; alkyl polyglycosides, and silicone surfactants such as oxyethylene groups and / Or polydimethylsiloxane containing an oxypropylene group, such as PEG-10 dimethicone, bis-PEG / PPG-14 / 14 dimethicone, bis-PEG / PPG-20 / 20 dimethicone, and PEG / PPG-20 / 6 dimethicone; And polyglyceryl fatty acid esters such as polyglyceryl-4 capricate, polyglyceryl laurate-10, polyglyceryl dicaprate-6, polyglyceryl didiolate-6, polyglyceryl caprylate-6, polyglyceryl oleate-2, and polyglyceryl-6 polylysinolate; And a mixture of these can be mentioned.

In addition, examples of nonionic surfactants include alkyl polyglycosides represented by the following general formula (1):
RO- (G) _x (1)
(In the formula, R represents a branched and / or unsaturated alkyl group containing 14 to 24 carbon atoms, G represents a reducing sugar containing 5 or 6 carbon atoms, and x is 1 Values ranging from 10 to 10, preferably 1 to 4, where G specifically indicates glucose, fructose, or galactose). As this type of alkyl polyglycoside, an alkyl polyglucoside (G = glucose in formula (I)), in particular a compound of formula (I) [where R is more specifically an oleyl group ( ₁₈ unsaturated C groups) or Represents an isostearyl group ( ₁₈ saturated C groups), G indicates glucose and x is a value in the range 1-2], in particular isostearyl glucosides, oleyl glucosides and mixtures thereof can be mentioned. This alkyl polyglucoside has the same fatty chains as a mixture with an auxiliary emulsifier, more particularly a fatty alcohol, in particular an alkyl polyglucoside, ie 14-24 carbon atoms, branched and / or unsaturated chains. Can be used as a mixture with fatty alcohols (eg, isostearyl alcohol if the alkylpolyglucoside is isostearyl glucoside, and oleyl alcohol if the alkylpolyglucoside is oleyl glucoside).

In addition, according to the present invention, it is particularly advantageous to use the fatty alcohol and the alkyl polyglycoside together, where this alkyl moiety is identical to that of the selected fatty alcohol. Among particularly preferred fatty alcohol / alkyl polyglycoside mixtures include products sold by SEPPIC under the name Montanov®, for example the following mixtures:
--Cetylstearyl alcohol / cocoyl glucoside (Montanov 82®),
--Arachidyl alcohol and behenyl alcohol / arachidyl glucoside (Montanov 802®),
--Myristyl Alcohol / Myristyl Glucoside (Montanov 14®),
--Cetearyl Alcohol / Cetearyl Glucoside (Montanov 68®),
--C ₁₄ ~ C ₂₂ Alcohol / C ₁₂ ~ C ₂₀ Alcohol Glucoside (Montanov L®),
--Cocoil Alcohol / Cocoyl Glucoside (Montanov S®), and
--Isostearyl alcohol / isostearyl glucoside (Montanov WO 18®).

Among the hydrophobized polysaccharides, the polysaccharide can be selected from polyglucose or polyfructose. Preferred polyglucose is selected from cellulose, methylcellulose, hydroxyethylcellulose, amylose, amylopectin and dextrin. The preferred polyfructose is inulin. In a preferred embodiment of the invention, the hydrophobic polysaccharide as a nonionic surfactant is hydrophobic inulin.

In hydrophobized polysaccharides, hydrophobic chains that can be connected or grafted onto the backbone of the polysaccharide are, in particular, linear or branched saturated or unsaturated hydrocarbons having 1-50 carbon atoms. The chain may be, for example, an alkyl, arylalkyl, alkylaryl and alkylene group, a divalent alicyclic group, or an organopolysiloxane chain. These hydrocarbon chains or organopolysiloxane chains may specifically contain one or more esters, amides, urethanes, carbamate, thiocarbamate, urea, thiourea and / or sulfonamide functional groups. Specifically, exemplary and non-limiting examples of hydrophobic inulin that can be used in the compositions according to the invention are, for example, sold by Engelhard under the name Lifidrem INST and by Ciba under Rheopearl INS. Stearoyl inulin, palmitoyl inulin, eg undecilenoyl inulin sold by Engelhard under the names of Lifidrem INUK and Lifidrem INUM, and inulin lauryl carbamate sold by Orafti, for example under the name Inutec SP1. Is included.

Examples of anionic surfactants that can be used in the compositions of the present invention are alkyl sulphates, alkyl ether sulphates, alkyl sulphonates, alkyl ether sulphonates, and sulfates of alkylphenoxypolyoxyethylene ethanol. Esters, α-olefin sulfonates, β-alkyloxyalkene sulfonates, alkylaryl sulfonates, alkyl carbonates, succinates, sulfosuccinates, sarcosinates, octoxinol or nonoxinol phosphates, taurates, fats Taurid, sulfated monoglycerides, fatty acid aminopolyoxyethylene sulfates, isetionates, alkylbenzene sulfonic acids, polyoxyethylene alkyl ether sulphates, polyoxyethylene alkyl ether carboxylic acids, and polyoxyethylene alkylamide ether carboxylic acids, and salts thereof. Can be mentioned.

Anionic surfactants include (C ₆ to C ₃₀ ) alkyl sulphates, (C ₆ to C ₃₀ ) alkyl ether sulphates, (C ₆ to C ₃₀ ) alkyl amide ether sulphates, alkylaryl polyethers sulphates, Monoglyceride sulfate; (C ₆ to C ₃₀ ) alkyl sulfonate, (C ₆ to C ₃₀ ) alkyl amide sulfonate, (C ₆ to C ₃₀ ) alkyl aryl sulfonate, α-olefin sulfonate, paraffin Sulfonates; (C ₆ to C ₃₀ ) Alkyl phosphates; (C ₆ to C ₃₀ ) Alkyl sulfosuccinates, (C ₆ to C ₃₀ ) Alkyl ether sulfosuccinates, (C ₆ to C ₃₀ ) Alkylamides Sulfonic succinates; (C ₆ to C ₃₀ ) alkyl sulfoacetates; (C ₆ to C ₂₄ ) acyl sarcosinates; (C ₆ to C ₂₄ ) acyl glutamates; (C ₆ to C ₃₀ ) alkyl polyglycoside carboxyl ethers; (C ₆ to C ₃₀ ) Alkyl _{Polyglycosid Sulfosuccinate} ; (C ₆ to C ₃₀ ) _{Alkyl Sulfosuccinate} ; Rate; C ₆ to C ₃₀ fatty acid salt; coconut hydrochloride or hydrogenated coconut hydrochloride; (C ₈ to C ₂₀ ) acyl lactylate; (C ₆ to C ₃₀ ) alkyl-D-galactosidouronate; poly Oxyalkyleneated (C ₆ to C ₃₀ ) alkyl ether carboxylates; polyoxyalkyleneated (C ₆ to C ₃₀ ) alkylaryl ether carboxylates; and polyoxyalkyleneated (C ₆ to C ₃₀ ) alkylamide ether carboxylates. It is preferably selected from the group consisting of acid salts; as well as the corresponding acid forms.

In at least one embodiment, the anionic surfactant is in the form of a salt, eg, a salt of an alkali metal (eg, sodium); a salt of an alkaline earth metal (eg, magnesium); an ammonium salt; an amine. Salts; and amino alcohol salts and the like. Depending on the conditions, the anionic surfactant may be in the form of an acid.

Anionic surfactants are (C ₆ to C ₂₄ ) acyl glutamate, (C ₆ to C ₃₀ ) alkyl sulfate, (C ₆ to C ₃₀ ) alkyl ether sulfate or chloride but not chloride. It may be more preferably selected from polyoxyalkyleneized (C ₆ to C ₃₀ ) alkyl ether carboxylic acids. In particular, the anionic surfactant can be selected from sodium salts of (C ₆ -C ₂₄ ) acyl glutamate, such as sodium stearoyl glutamate.

The nonionic surfactant is 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1% by mass or more, still more preferably 1.3% by mass or more, particularly 1.5% by mass, based on the total mass of the composition. It may be present in the above amount and / or in an amount of 10% by mass or less, preferably 7% by mass or less, more preferably 5% by mass or less, and particularly 3% by mass or less.

The anionic surfactant is 0.05% by mass or more, preferably 0.1% by mass or more, more preferably 0.15% by mass or more, still more preferably 0.2% by mass or more, and particularly 0.25% by mass or more, based on the total mass of the composition. And / or 5% by mass or less, preferably 3% by mass or less, more preferably 1% by mass or less, particularly 0.5% by mass or less.

The amount of the surfactant is 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1% by mass or more, still more preferably 1.5% by mass or more, and particularly 1.7% by mass or more, based on the total mass of the composition. And / or it may be present in an amount of 15% by mass or less, preferably 10% by mass or less, more preferably 5% by mass or less, and particularly 3% by mass or less.

(Thickener)
The composition according to the present invention may contain at least one thickener different from the components (a) and (b) of the present invention. Two or more thickeners may be combined. The thickener may be hydrophilic or lipophilic, and is preferably lipophilic.

The lipophilic thickener may be in the form of a polymer.

The oil-based polymer thickener is a carboxyvinyl polymer, for example a Carbopol product (Carbomer) and a Pemulen product (acrylate / C10 to C30 alkyl acrylate copolymer) or a polymer having an INCI name "poly C10 to 30 alkyl acrylate", for example, Air Products. You can choose from Intelimer® products manufactured by, for example, Intelimer® IPA 13-1, which is a polystearyl acrylate, or 30 Intelimer® IPA 13-6, which is a behenyl polymer.

The amount of the thickener in the composition can be 0.1 to 10% by mass, preferably 0.2 to 5% by mass, and more preferably 0.3 to 3% by mass with respect to the total mass of the composition.

(Hydrophilic organic solvent)
The composition according to the present invention may contain at least one hydrophilic organic solvent acceptable for cosmetics.

The term "hydrophilic" as used herein refers to a solubility of at least 1 g / L, preferably at least 10 g / L, more preferably at least 100 g / L in water at room temperature (25 ° C.) and atmospheric pressure (10 ⁵ Pa). Means a substance having. Therefore, hydrophilic organic solvents that are acceptable for cosmetics, if present, are included in the aqueous phase.

Hydrophilic organic solvents that are acceptable for cosmetics include, for example, substantially linear or branched lower monoalcohols having 1-8 carbon atoms such as ethanol, propanol, butanol, isopropanol and isobutanol. Aromatic alcohols such as benzyl alcohol and phenylethyl alcohol; polyols or polyol ethers such as propylene glycol, dipropylene glycol, isoprene glycol, butylene glycol, glycerin, propanediol, pentylene glycol, caprylyl glycol, sorbitol, ethylene glycol. Monomethyl, monoethyl and monobutyl ethers, propylene glycol ethers, propylene glycol monomethyl ethers, diethylene glycol alkyl ethers such as diethylene glycol monoethyl ethers or monobutyl ethers; polyethylene glycols such as PEG-4, PEG-6, PEG-8, PEG-10 , And PEG-20, and derivatives thereof, and combinations thereof.

The amount of the hydrophilic organic solvent allowed as a cosmetic in the composition according to the present invention is 1% by mass or more, preferably 3% by mass or more, more preferably 5% by mass or more, based on the total mass of the composition. In particular, it may be 7% by mass or more and / or 30% by mass or less, preferably 20% by mass or less, and more preferably 15% by mass or less.

(Filler)
The composition according to the invention may contain at least one filler. Two or more fillers may be combined. The filler may be inorganic or organic. The filler may also be a silicone powder.

As inorganic fillers, talc, mica, silica, hollow silica, magnesium aluminum silicate, trimethylsiloxysilicate or silica silicate, kaolin, Benton, calcium carbonate, magnesium hydrogencarbonate, hydroxyapatite, boron nitride, fluorofrogopite, sericite, Examples include calcined talc, calcined mica, calcined sericite, synthetic mica, pearlite, lauroyl lysine, metallic soap, bismuth oxychloride, barium sulfate, magnesium carbonate, and mixtures thereof, which may optionally be treated hydrophilically or. It is hydrophobically treated.

As organic fillers, acrylic polymer powder, silicone powder, wax powder, polyamide powder, urethane polymer powder, tetrafluoroethylene polymer powder, polyacrylonitrile powder, poly-β-alanine powder, polyethylene powder, polytetrafluoroethylene powder, lauroyl lysine, Examples thereof include starch, cellulose powder, tetrafluoroethylene polymer powder and mixtures thereof.

Examples of the silicone powder include organopolysilsesquioxane powder, organopolysiloxane powder, and silicone resin powder.

The amount of the filler in the composition is 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1% by mass or more, and 15% by mass or less, preferably 10% by mass or less, based on the total mass of the composition. , More preferably 5% by mass or less.

(pH regulator)
The pH of the composition according to the present invention can be adjusted to a desired value by using, for example, at least one pH adjusting agent such as an acidifying agent or a basicizing agent usually used in cosmetics.

The pH of the composition according to the present invention may be 8.0 or less, preferably 7.0 or less, more preferably 6.0 or less, even more preferably 5.0 or less, particularly 4.5 or less, and / or 2.5 or more, preferably 2.5 or more, at 25 ° C. May be 3.0 or higher, more preferably 3.5 or higher, and particularly 4.0 or higher.

Among the acidifying agents, examples include inorganic or organic acids such as hydrochloric acid, orthrinic acid, sulfuric acid, carboxylic acids such as acetic acid, tartaric acid, citric acid, and lactic acid, as well as sulfonic acid.

Among the basicizing agents, for example, hydroxides of alkali metals or alkaline earth metals, such as sodium hydroxide or potassium hydroxide; quaternary ammonium hydroxide and guanidine hydroxide; alkali metals such as sodium metasilicate. Quartates; amino acids, preferably basic amino acids such as arginine, lysine, ornithine, citrulin and histidine; carbonates and bicarbonates; organic alkaline agents such as mono, di and triethanolamine and other alkanolamines, and isopropanol. Amines; ureas, guanidines and their derivatives; and the following formula:

(During the ceremony,
W is a C ₁ to C ₆ alkylene residue optionally substituted with a hydroxyl group or a C ₁ to C ₆ alkyl group.
Rx, Ry, Rz and Rt may be the same or different and represent a hydrogen atom or a C ₁ to C ₆ alkyl, C ₁ to C ₆ hydroxyalkyl or C ₁ to C ₆ aminoalkyl group).
Compounds can be mentioned. Specific examples include 1,3-diaminopropane, 1,3-diamino-2-propanol, spermine, and spermidine.

The pH regulator is used in an amount in the range of 0.001% by weight to 10% by weight, preferably 0.01% by weight to 5% by weight, more preferably 0.1% by weight to 3% by weight, based on the total weight of the composition. May be good.

(Auxiliary agent)
The compositions according to the invention also include, for example, hydrophobic organic solvents, gums, resins, antioxidants (tocopherols, etc.), buffers, preservatives (phenoxyethanol, etc.), co-preservatives, opalescents, fragrances. , Neutralizers, bactericides, UV shields, stabilizers or electrolytes, metal ion blockers (such as disodium ethylenediaminedisuccinate), dispersants, dyes and / or pigments, skin softeners or collagen protectants, and these. It may also contain any of the adjuncts commonly used in the field of cosmetics, selected from the mixtures of.

The auxiliary agent is contained in the composition of the present invention in an amount of 0.01% by mass to 30% by mass, preferably 0.1% by mass to 20% by mass, and more preferably 0.5% by mass to 10% by mass, based on the total mass of the composition. It may be present in a range of quantities.

The composition according to the present invention can be prepared by mixing the above-mentioned essential components and optional components by a conventional method. It is possible to further include mixing any of the optional components and heating the composition until the components are dissolved.

[Cosmetology process and method]
The invention is also a non-therapeutic method or process, preferably a cosmetological method or process, more preferably a cosmetological method or process for the care and / or conditioning of keratinous substances such as skin, scalp, and lips, in particular skin care and / or conditioning. hand,
(a) At least one associative polymer, including one or more acrylic and / or methacrylic units.
(b) At least one neutralized poly (meth) acrylic acid polymer,
(c) At least one organic UV filter, as well as
(d) It also relates to a method or process comprising the step of applying an oil-in-water composition containing at least one oil onto a keratin substance.

In the compositions according to the invention, (a) an associative polymer containing one or more acrylic and / or methacrylic units, (b) a neutralized poly (meth) acrylic acid polymer, (c) an organic UV filter, and The same description as for (d) oil-containing compositions was obtained: (a) associative polymers containing one or more acrylic and / or methacrylic units in the methods and processes according to the invention, (b) neutralized. It can be applied to compositions containing poly (meth) acrylic acid polymers, (c) organic UV filters, and (d) oils. The composition used in the process and method according to the invention may contain any of the optional components described above with respect to the composition according to the invention.

The present invention will be described in more detail by way of examples, but this should not be construed as limiting the scope of the invention.

[Composition]
Uniform solution compositions according to Examples and Comparative Examples were prepared by mixing the components listed in Table 1 (Table 1) and Table 2 (Table 2). Specifically, in the first step, water and a component in the aqueous phase, that is, a water-soluble and water-dispersible component are mixed in water and the mixture is heated to 75 ° C. to obtain a uniform aqueous phase. rice field. The oil and the components in the oily phase, that is, the oil-soluble and oil-dispersible components, were mixed in the oil and the mixture was heated to 75 ° C. to obtain a uniform oily phase. The obtained oily phase was added to the aqueous phase and they were homogenized at 8000 rpm for 10 minutes at 75 ° C. The mixture was then cooled to below 45 ° C. Acrylate / Behenes-25 methacrylate copolymer, sodium polyacrylate, carbomer, and / or acryloyldimethyltaurine ammonium / VP copolymer were added and homogenized at 8000 rpm for 10 minutes. Finally, triethanolamine or potassium hydroxide was added and homogenized at 7000 rpm for 5 minutes to obtain an emulsion composition. All figures for the amounts of ingredients shown in Table 1 and Table 2 are based on "% by mass" as the active ingredient.

[evaluation]
(Stability)
50 g of each resulting emulsion composition was placed in a 50 mL glass bottle and maintained at 55 ° C. for 1 week in an incubator. Then, after cooling to room temperature, the appearance of each sample was visually observed. The stability of each composition was evaluated under the following criteria.

Good: Emulsion morphology did not change Bad: Oil leaks and / or cream separation was observed

(Analysis of stickiness)
The stickiness of each composition was measured by using a texture analyzer TA.XT plus (manufactured by Stable Micro System) equipped with a 20 mm cylinder (P / 20) made of aluminum. The measurement conditions were as follows.

Test style: Compressed substrate: 30 mm x 30 mm flat bioskin sample: 20 mg composition probe uniformly applied to the surface of the bioskin with a finger Probe: 20 mm diameter cylinder Test speed: 0.1 mm / s
Distance: 2mm
Force: 150g
Count: 100 times

The average (g) of 100 counts of negative force was determined as a result of stickiness. Lower results mean that the composition becomes more sticky.

(Sensory test)
30 mg of each composition was applied with a finger on and around a 30 mm × 30 mm area of the panel member's forearm (n = 5). The stickiness and freshness of each composition were evaluated under the following criteria.
—— Sticky
1: Sticky
2: Slightly sticky
3: I can't judge whether it is sticky or not
4: Not sticky
5: Not sticky at all
--Fresh and refreshing feeling
1: No fresh and refreshing sensation
2: If anything, there is no fresh and refreshing feeling
3: I can't judge whether there is a fresh and refreshing feeling
4: If anything, there is a fresh and refreshing feeling
5: There is a fresh and refreshing feeling

The results are shown in Table 3 below. The results of the sensory test were expressed by the average score of the panel members.

As can be seen from Table 3, (a) an associative polymer containing one or more acrylic and / or methacrylic units and (b) neutralized poly (meth) acrylic acid according to the present invention. The composition according to the example, which comprises a combination of specific thickeners of the polymer, contains a high concentration of organic UV filters, but exhibits excellent skin sensation in terms of stickiness and fresh and refreshing sensation.

On the other hand, a comparative example of the present invention 2 which does not include (a) a specific combination of an associative polymer containing one or more acrylic and / or methacrylic units and (b) a neutralized poly (meth) acrylic acid polymer. The composition according to was not showing an improved fresh and refreshing sensation. In addition, the compositions according to Comparative Examples 3, 5, 7 and 8 which did not contain a sufficient amount of thickener could not exhibit the stability of an emulsion.

Accordingly, the compositions according to the invention can provide the same stability and improved skin sensation as O / W emulsions during application and have a good UV protection effect due to the high concentration of organic UV filters. Since it can be brought, it can be concluded that it is very suitable as a cosmetic composition for the care and / or conditioning of keratinous substances such as skin.

Claims (15)

(a) At least one associative polymer, including one or more acrylic and / or methacrylic units.
(b) At least one neutralized poly (meth) acrylic acid polymer,
(c) At least one organic UV filter, and
(d) An oil-in-water composition containing at least one oil. (A) The composition of claim 1, wherein the associative polymer further comprises one or more (meth) acrylic acid (C ₁ to C ₁₂ ) alkyl ester units. (a) The composition of claim 1 or 2, wherein the associative polymer further comprises one or more units derived from a polyoxyalkyleneated fatty alcohol. (B) The composition according to any one of claims 1 to 3, wherein the neutralized poly (meth) acrylic acid polymer is a crosslinked polymer. (B) The composition according to any one of claims 1 to 4, wherein the neutralized poly (meth) acrylic acid polymer is a homopolymer. (B) The composition according to any one of claims 1 to 5, wherein the neutralized poly (meth) acrylic acid polymer is partially neutralized. (a) The amount of the associative polymer is 0.05% by mass or more, preferably 0.1% by mass or more, more preferably 0.15% by mass or more, particularly 0.2% by mass or more, and / or the total mass of the composition. The composition according to any one of claims 1 to 6, wherein the composition is 3% by mass or less, preferably 2% by mass or less, more preferably 1% by mass or less, and particularly 0.5% by mass or less. (b) The amount of the neutralized poly (meth) acrylic acid polymer is 0.05% by mass or more, preferably 0.1% by mass or more, more preferably 0.15% by mass or more, particularly 0.2% by mass, based on the total mass of the composition. The composition according to any one of claims 1 to 7, which is% or more and / or 3% by mass or less, preferably 2% by mass or less, more preferably 1% by mass or less, and particularly 0.5% by mass or less. thing. The mass ratio of (a) the associative polymer to (b) the neutralized poly (meth) acrylic acid polymer in the composition is 0.5 or more, preferably 0.8 or more, particularly 0.9 or more, and / or 3 or less. The composition according to any one of claims 1 to 8, preferably 2 or less, particularly 1.5 or less. (c) The amount of the organic UV filter is 3% by mass or more, preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 15% by mass or more, particularly 20 with respect to the total mass of the composition. 13. Composition. (d) The amount of oil is 1% by mass or more, preferably 2% by mass or more, more preferably 3% by mass or more, still more preferably 5% by mass or more, particularly 6% by mass, based on the total mass of the composition. The composition according to any one of claims 1 to 10, wherein / or 20% by mass or less, preferably 15% by mass or less, more preferably 12% by mass or less, and particularly 10% by mass or less. .. The composition according to any one of claims 1 to 11, further comprising at least one surfactant. 12. The composition of claim 12, wherein the surfactant comprises a nonionic surfactant, an anionic surfactant, or a combination of a nonionic surfactant and an anionic surfactant. 20% by mass or more, preferably 30% by mass or more, more preferably 40% by mass or more, still more preferably 45% by mass or more, particularly 50% by mass or more, and / or 90 with respect to the total mass of the composition. The composition according to any one of claims 1 to 13, further comprising an amount of water of 1% by mass or less, preferably 80% by mass or less, more preferably 70% by mass or less, particularly 60% by mass or less. A non-therapeutic cosmetological method for the care and / or conditioning of keratin substances such as the skin.
On the keratin substance,
(a) At least one associative polymer, including one or more acrylic and / or methacrylic units.
(b) At least one neutralized poly (meth) acrylic acid polymer,
(c) At least one organic UV filter, as well as
(d) A method comprising the step of applying an oil-in-water composition comprising at least one oil.