阅读说明：本技术 毛发处理组合物 (Hair treatment composition ) 是由 P·K·C·保罗 S·派伊 C·B·T·罗格斯 于 2018-10-01 设计创作，主要内容包括：本发明属于毛发处理组合物领域；特别是涉及用于毛发体积减少的毛发处理组合物。尽管存在现有技术,但是仍然存在提高经由毛发处理组合物递送的调理益处的机会。因此,本发明的一个目的是提供甚至在暴露于湿气和洗涤毛发之后保持形状和减少卷发的毛发处理组合物。已经发现减少的毛发卷发和毛发形状保持,甚至在暴露于湿气之后,可以通过使用N-甲酰基氨基酸获得。(The present invention is in the field of hair treatment compositions; in particular to hair treatment compositions for hair volume reduction. Despite the prior art, there remains an opportunity to improve the conditioning benefits delivered via hair treatment compositions. It is therefore an object of the present invention to provide a hair treatment composition that retains shape and reduces curl even after exposure to moisture and washing of the hair. It has been found that reduced hair curling and hair shape retention, even after exposure to moisture, can be obtained by using N-formyl amino acids.)

1. A hair treatment composition comprising an aqueous continuous phase containing at least 0.5 wt% of an N-formyl amino acid.

2. The hair treatment composition according to claim 1, wherein the aqueous phase comprises at least 60 wt.% water.

3. The hair treatment composition according to claim 1 or 2, wherein the N-formyl amino acid is in the free acid form.

4. A hair treatment composition according to any preceding claim, wherein the N-formyl amino acid is N-formyl glycine.

5. The hair treatment composition according to any preceding claims, wherein the aqueous phase comprises from 0.5 to 6 wt% of N-formyl amino acid.

6. The hair treatment composition according to any preceding claims, wherein the aqueous phase comprises from 60 to 99.5 wt.% water.

7. Use of a composition according to claims 1 to 6 for hair frizz reduction.

8. Use of a composition according to claims 1 to 6 for hair straightening.

Use of N-formylglycine for the reduction of hair volume.

Use of N-formylglycine for hair frizz reduction.

Technical Field

The present invention is in the field of hair treatment compositions; in particular to hair treatment compositions for hair volume reduction.

Background

Frizzy hair (frizz) is generally considered hair that is not aligned with surrounding hair, but stands or curls independently, creating curly or irregular textures, thereby giving the hair a fluffy (voluminous) or heavy (bushy) appearance. Typically, hair becomes frizzy on those days when there is humid weather or high levels of moisture in the air. Thus, the hair appears dry and curly, rather than smooth, shiny and well defined (defined). Loss of the appearance of curly hair and shine and smoothness is associated with a perception of poor hair health.

A common method of providing conditioning benefits to hair is through the use of conditioning agents such as cationic surfactants and polymers, high melting point fatty compounds, low melting point oils, silicone compounds, and mixtures thereof. Deposition of these materials onto the hair surface results in hair having an undesirable greasy feel and appearance.

US 2016/0158128 discloses a rinse-off conditioner composition for hair frizz reduction comprising from about 0.2% to about 20% of a moisture control material or a mixture of moisture control materials.

Despite the prior art, there remains an opportunity to improve the conditioning benefits delivered via hair treatment compositions.

It is therefore an object of the present invention to provide a hair treatment composition for reduction of frizziness.

It is another object of the present invention to provide a hair treatment composition that retains shape and reduces curl even after exposure to moisture. It is a further object of the present invention to provide compositions having hair shape benefits and reduced curl even after washing the hair. Surprisingly, it has been found that reduced hair curling and hair shape retention, even after exposure to moisture, can be obtained by using N-formyl amino acids.

Disclosure of Invention

Accordingly, in a first aspect, the present invention provides a hair treatment composition comprising an aqueous phase containing at least 0.5% by weight of N-formyl amino acids.

In a second aspect, the present invention provides the use of a composition according to the present invention for hair frizz reduction.

In a third aspect, the present invention provides the use of a composition according to the invention for hair straightening.

In a fourth aspect, the present invention provides the use of N-formylglycine for hair volume reduction.

In a fifth aspect, the present invention provides the use of N-formylglycine for hair frizz reduction.

In the context of the present invention, reference to "hair" generally refers to mammalian hair, including scalp hair, facial hair and body hair, more preferably hair on the human head and scalp.

These and other aspects, features and advantages will become apparent to those of ordinary skill in the art from a reading of the following detailed description and the appended claims. For the avoidance of doubt, any feature of one aspect of the invention may be used in any other aspect of the invention. The word "comprising" is intended to mean "including", but not necessarily "consisting of. In other words, the listed steps or options need not be exhaustive. It should be noted that the examples given in the following description are intended to illustrate the present invention, and are not intended to limit the present invention to those examples per se. Similarly, all percentages are weight/weight percentages unless otherwise indicated. Except in the operating and comparative examples, or where otherwise explicitly indicated, all numbers in this description indicating amounts of material or conditions of reaction, physical properties of materials and/or use are to be understood as modified by the word "about". Numerical ranges expressed in "x to y" format should be understood to include x and y. When multiple preferred ranges are described in the format "x to y" for a particular feature, it is to be understood that all ranges combining the different endpoints are also contemplated.

Detailed Description

In a first aspect, the present invention relates to a hair treatment composition comprising an aqueous phase comprising an N-formyl amino acid.

"aqueous phase" means a phase having water as its base. Thus, the aqueous treatment composition will typically comprise at least 60%, preferably at least 65%, more preferably at least 70%, still more preferably at least 75%, even more preferably at least 80 or even at least 90% water by weight of the total composition. Preferably, the composition comprises no more than 99.5%, more preferably no more than 98% water by weight of the total composition. Other organic solvents may also be present, such as lower alkyl alcohols and polyols. Examples of lower alkyl alcohols include C₁To C₆Monohydric alcohols, such as ethanol and isopropanol. Examples of the polyhydric alcohol include propylene glycol (propyleneglycol), hexylene glycol, glycerin, and propylene glycol (propanediol). Mixtures of any of the above organic solvents may also be used.

Preferably, the aqueous phase is an aqueous continuous phase. By "aqueous continuous phase" is meant a continuous phase having water as its base.

The aqueous treatment composition of the present invention comprises at least 0.5% by weight of the total composition of an N-formyl amino acid.

Suitable N-formyl amino acids include N-formyl standard amino acids and derivatives thereof. Typical examples are N-formylalanine, N-formylproline, N-formylmethionine, N-formylvaline, N-formylleucine and N-formylglycine. The most preferred N-formyl amino acid is N-formyl glycine.

The N-formyl amino acids may be used in the form of the free acids or in the form of salts, such as sodium, potassium and ammonium salts or lower alkanolamine salts (e.g., mono-, di-and triethanolamine salts and mono-, di-and triisopropanolamine salts). Mixtures of the above forms may also be suitable.

Preferably, the N-formyl amino acids are used in free acid form and at a level ranging from 0.5 to 6%, more preferably from 1 to 3%, most preferably from 1.5 to 2.5% by weight of the total composition.

Shampoo composition

Particularly preferred hair treatment compositions according to the invention are shampoo compositions.

Such shampoo compositions will comprise one or more cleansing surfactants which are cosmetically acceptable and suitable for topical application to the hair. More surfactant may be present as an additional ingredient, not provided as an emulsifier for the silicone component, if sufficient for cleaning purposes. It is preferred that the shampoo compositions of the present invention comprise at least one more surfactant (in addition to the surfactant used as an emulsifier for the silicone component) to provide a cleaning benefit.

Suitable cleansing surfactants, which may be used alone or in combination, are selected from anionic, amphoteric, and zwitterionic surfactants, and mixtures thereof. The cleansing surfactant may be the same surfactant as the emulsifier, or may be different.

Shampoo compositions according to the invention will generally comprise one or more anionic cleansing surfactants which are cosmetically acceptable and suitable for topical application to the hair.

Examples of suitable anionic cleansing surfactants are alkyl sulphates, alkyl ether sulphates, alkaryl sulphonates, alkanoyl isethionates, alkyl succinates, alkyl sulphosuccinates, N-alkyl sarcosinates, alkyl phosphates, alkyl ether carboxylates and alpha-olefin sulphonates, especially their sodium, magnesium, ammonium and mono-, di-and triethanolamine salts. The alkyl and acyl groups typically contain from 8 to 18 carbon atoms and may be unsaturated. The alkyl ether sulfates, alkyl ether phosphates and alkyl ether carboxylates may contain from 1 to 10 ethylene oxide or propylene oxide units per molecule.

Typical anionic cleansing surfactants for use in the shampoo compositions of the present invention include sodium oleyl succinate, ammonium lauryl sulphosuccinate, ammonium lauryl sulphate, sodium dodecylbenzene sulphonate, triethanolamine dodecylbenzene sulphonate, sodium cocoyl isethionate, sodium lauryl isethionate and sodium N-lauryl sarcosinate. Most preferred anionic surfactants are sodium lauryl sulfate, sodium lauryl ether sulfate (n) EO (where n is 1 to 3), ammonium lauryl sulfate, and ammonium lauryl ether sulfate (n) EO (where n is 1 to 3).

Mixtures of any of the foregoing anionic cleansing surfactants may also be suitable.

The total amount of anionic cleansing surfactant in the shampoo compositions of the present invention is generally from 5 to 30, preferably from 6 to 20, more preferably from 8 to 16 wt%.

The shampoo compositions may optionally comprise a co-surfactant to help impart aesthetic, physical or cleansing properties to the composition.

Preferred examples are amphoteric or zwitterionic surfactants, which may be included in amounts of from 0 to about 8, preferably from 1 to 4 wt.%. Examples of amphoteric and zwitterionic surfactants include alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulfobetaines, alkyl glycinates, alkyl carboxyglycinates, alkyl amphopropionates, alkyl amphoglycinates, alkyl amidopropyl hydroxysultaines, acyl taurates and acyl glutamates, wherein the alkyl and acyl groups have from 8 to 19 carbon atoms. Typical amphoteric and zwitterionic surfactants for use in the shampoos of the invention include lauryl amine oxide, coco dimethyl sulfopropyl betaine, and preferably lauryl betaine, cocamidopropyl betaine, and sodium cocoamphopropionate.

Another preferred example is a nonionic surfactant, which may be included in an amount of 0 to 8, preferably 2 to 5% by weight.

For example, representative nonionic surfactants that may be included in shampoo compositions of the invention include aliphatic linear or branched (C)₈-C₁₈) Condensation products of primary or secondary alcohols or phenols with alkylene oxides, usually ethylene oxide, and usually having from 6 to 30 ethylene oxide groups.

Other representative nonionic surfactants include mono-or dialkyl alkanolamides. Examples include coco mono or diethanolamine or coco mono or diisopropanolamine.

A further nonionic surfactant that may be included in shampoo compositions of the invention is Alkyl Polyglycoside (APG). Typically, an APG is an APG comprising an alkyl group linked (optionally via a bridging group) to a block of one or more glycosyl groups. Preferred APGs are defined by the formula: RO- (G)_n

Wherein R is a branched or straight chain alkyl group, which may be saturated or unsaturated, and G is a sugar group.

R may represent about C₅To about C₂₀Average alkyl chain length of (a). Preferably, R represents about C₈To about C₁₂Average alkyl chain length of (a). Most preferably, the R value is between about 9.5 and about 10.5. G may be selected from C₅Or C₆Monosaccharide residues, and preferably glucosides. G may be selected from glucose, xylose, lactose, fructose, mannose and derivatives thereof. Preferably, G is glucose.

The degree of polymerization n may have a value of about 1 to about 10 or more. Preferably, the value of n lies in the range of about 1.1 to about 2. Most preferably, the value of n lies in the range of about 1.3 to about 1.5.

Other sugar derived nonionic surfactants that can be included in shampoo compositions of the invention include C₁₀-C₁₈N-alkyl (C)₁-C₆) Polyhydroxy fatty acid amides, e.g. C₁₂-C₁₈N-methylglucamides, as described, for example, in WO 9206154 and US 5194639, and N-alkoxy polyhydroxy fatty acid amides, such as C₁₀-C₁₈N- (3-methoxypropyl) glucamide.

The shampoo compositions may also optionally comprise one or more cationic co-surfactants, which are included in an amount ranging from 0.01 to 10, more preferably from 0.05 to 5, most preferably from 0.05 to 2 weight percent.

In the shampoo compositions of the present invention, the total amount of surfactant (including any co-surfactant and/or any emulsifier for the silicone component) is generally from 0.1 to 50, preferably from 5 to 30, more preferably from 10 to 25 wt%.

Conditioning agent

The compositions according to the invention can also be formulated as conditioners for hair treatment (usually after shampooing) and subsequent rinsing.

The aqueous treatment compositions of the present invention may also suitably comprise a conditioning gel phase, which may be generally characterized as a gel (L β) surfactant mesophase consisting of a surfactant bilayer. Such a conditioning gel phase may be formed from a cationic surfactant, a high melting point fatty alcohol, and an aqueous carrier. Typically, these components are heated to form a mixture, which is cooled to room temperature under shear. During cooling, the mixture undergoes a number of phase transitions, typically producing a gel (L β) surfactant mesophase consisting of a surfactant bilayer.

Examples of suitable cationic surfactants that can be used to form the conditioning gel phase include quaternary ammonium cationic surfactants corresponding to the general formula:

[N(R¹)(R²)(R³)(R⁴)]⁺(X)^-

wherein R is¹、R²、R³And R⁴Each independently selected from (a) an aliphatic group having from 1 to 22 carbon atoms, or (b) an aromatic, alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, aryl or alkylaryl group having up to 22 carbon atoms; and X is a salt-forming anion such as those selected from halides (e.g., chloride, bromide), acetate, citrate, lactate, glycolate, phosphate, nitrate, sulfonate, and alkylsulfonate.

The aliphatic groups may contain, in addition to carbon and hydrogen atoms, ether linkages and other groups such as amino groups. Longer chain aliphatic groups, such as those having about 12 carbons or higher, may be saturated or unsaturated. Specific examples of such quaternary ammonium cationic surfactants having the above general formula are cetyltrimethylammonium chloride, behenyltrimethylammonium chloride (BTAC), cetylpyridinium chloride, tetramethylammonium chloride, tetraethylammonium chloride, octyltrimethylammonium chloride, dodecyltrimethylammonium chloride, hexadecyltrimethylammonium chloride, octyldimethylbenzylammonium chloride, decyldimethylammonium chloride, stearyldimethylbenzylammonium chloride, didodecyldimethylammonium chloride, dioctadecyldimethylammonium chloride, tallowtrimethylammonium chloride, cocoyltrimethylammonium chloride, dipalmitoylethyldimethylammonium chloride, PEG-2 oleylammonium chloride, and salts of these, wherein the chloride is replaced by another halide (e.g., bromide), acetate, citrate, lactate, glycolate, phosphate, nitrate, sulfate, or alkylsulfate.

In a preferred class of cationic surfactants having the above general formula, R¹Is C₁₆To C₂₂Saturated or unsaturated, preferably saturated, alkyl chains, R²、R³And R⁴Each independently selected from CH₃And CH₂CH₂OH, preferably CH₃. Specific examples of such preferred quaternary ammonium cationic surfactants for forming the conditioning gel phase are cetyltrimethylammonium chloride (CTAC), behenyltrimethylammonium chloride (BTAC) and mixtures thereof.

Mixtures of any of the foregoing cationic surfactants may also be suitable.

The content of the cationic surfactant is suitably in the range of from 0.1 to 10%, preferably from 0.2 to 5% and more preferably from 0.25 to 4% (by weight based on the total weight of the composition).

In the context of the present invention, "high melting point" generally refers to a melting point of 25 ℃ or higher. Generally, the melting point ranges from 25 ℃ to 90 ℃, preferably from 40 ℃ to 70 ℃, more preferably from 50 ℃ to about 65 ℃.

The high melting point fatty alcohols may be used as a single compound or as a blend or mixture of at least two high melting point fatty alcohols. When a blend or mixture of fatty alcohols is used, the melting point refers to the melting point of the blend or mixture.

Suitable fatty alcohols of this type have the general formula R-OH, where R is an aliphatic carbon chain. Preferably, R is a saturated aliphatic carbon chain containing from 8 to 30 carbon atoms, more preferably from 14 to 30 carbon atoms and most preferably from 16 to 22 carbon atoms.

In addition to carbon and hydrogen atoms, R may also contain ether linkages and other groups such as amino groups.

Most preferably, the fatty alcohol has the formula CH₃(CH₂)_nOH, wherein n is an integer from 7 to 29, preferably from 15 to 21.

Specific examples of suitable fatty alcohols are cetyl alcohol, stearyl alcohol, behenyl alcohol and mixtures thereof. Cetyl alcohol, stearyl alcohol and mixtures thereof are particularly preferred.

Mixtures of any of the above fatty alcohols may also be suitable.

The content of fatty alcohol is suitably in the range 0.01 to 10%, preferably 0.1 to 8%, more preferably 0.2 to 7%, and most preferably 0.3 to 6% (by weight based on the total weight of the composition).

The weight ratio of cationic surfactant to fatty alcohol is suitably from 1:1 to 1:10, more preferably from 1:1.5 to 1:8, optimally from 1:2 to 1: 5.

Styling compositions

The hair treatment composition according to the invention may also take the form of a styling composition.

Preferred product forms are leave-on formulations such as gels, waxes and creams.

Alternative styling forms include mousses, sprays and aerosols.

Such styling products often comprise a carrier and further additional components. The carriers and additional components required to formulate such products vary with the type of product and can be routinely selected by those skilled in the art.

The following is a description of some of these carriers and additional components. The hair care composition of the present invention may comprise a carrier suitable for application to hair or a mixture of such carriers. The carrier is present in about 0.5% to about 99.5%, preferably about 5.0% to about 99.5%, more preferably about 10.0% to about 98.0% of the composition. The phrase "suitable for application to hair" as used herein means that the carrier does not destroy or adversely affect the aesthetics of the hair or cause irritation to the underlying skin.

The composition according to the invention comprises a buffer or a pH adjusting agent. Preferred buffering agents or pH adjusting agents include weak acids and bases such as glycine/sodium hydroxide, citric acid, lactic acid, succinic acid, acetate and salts thereof. Frequently, mixtures of buffer systems are used, such as sodium citrate and citric acid.

Carriers suitable for use with the hair care compositions of the present invention include, for example, those used in hair sprays, mousses, tonics, waters, creams, gels, shampoos, conditioners, and rinses. The selection of an appropriate carrier will depend on the particular product being formulated. The carrier used herein may include a wide range of components conventionally used in hair care compositions. The carrier may contain a solvent for dissolving or dispersing the shaping compound used, water, C₁-C₆Alcohols, lower alkyl acetates and mixtures thereof are preferred. The carrier may also contain a wide variety of additional materials such as acetone, hydrocarbons (e.g., isobutane, hexane, decene), halogenated hydrocarbons (e.g., freon), and volatile silicones such as cyclomethicone.

When the hair care composition is a hair spray, hair tonic, gel or mousse, preferred solvents include water, ethanol, volatile silicone derivatives, and mixtures thereof. The solvents used in such mixtures may be miscible or immiscible with each other. Mousses and aerosol hair sprays can also use any conventional propellant to deliver the material as a foam (in the case of mousses) or as a fine, uniform spray (in the case of aerosol hair sprays). Examples of suitable propellants include materials such as trichlorofluoromethane, dichlorodifluoromethane, difluoroethane, dimethyl ether, propane, n-butane or isobutane. Hair tonics or hair spray products having a low viscosity may also use emulsifiers. Examples of suitable emulsifiers include nonionic, cationic, anionic surfactants or mixtures thereof. Such emulsifiers, if used, are preferably present at a level of from about 0.01% to about 7.5% by weight based on the total weight of the composition. The level of propellant is adjusted as desired, but is typically from about 3% to about 30% by weight based on the total weight of the mousse composition and from about 15% to about 50% by weight based on the total weight of the aerosol hairspray composition.

Hair styling waxes, creams or gels will also typically contain a structurant or thickener, typically in an amount of 0.01 to 10% by weight.

Suitable aerosol containers are well known in the art and include conventional non-aerosol pump sprays, i.e. "atomisers", aerosol containers or canisters with propellant as described above, and pump aerosol containers using compressed air as the propellant.

The hair treatment compositions of the present invention may also incorporate other optional ingredients that enhance performance and/or user acceptability. Suitable optional ingredients include: preservatives, colouring agents, chelating agents, antioxidants, fragrances, antimicrobial agents, anti-dandruff agents, cationic conditioning polymers, sunscreens, proteins and hydrolysed proteins.

The compositions of the present invention may also contain adjuvants suitable for hair care. Typically, such ingredients are independently included at levels of up to 2, preferably up to 1 wt% of the total composition. Suitable hair care adjuncts include amino acids, sugars and ceramides.

In a second aspect, the present invention relates to the use of a composition according to the present invention for hair frizz reduction.

In a third aspect, the present invention relates to the use of a composition according to the present invention for hair straightening.

In a fourth aspect, the present invention relates to the use of N-formylglycine for hair volume reduction.

In a fifth aspect, the present invention relates to the use of N-formylglycine for hair frizz reduction.

The invention is further illustrated with reference to the following non-limiting examples.