Hair care composition, method for treating the hair and / or scalp and method for improving capilar volume

Description

1 / 19 “HAIR CARE COMPOSITION, METHOD FOR TREATING HAIR AND / OR SCALP AND METHOD FOR IMPROVING THE "HAIR VOLUME" Field of Invention

[001] This invention relates to hair care compositions, more particularly to hair care compositions comprising a silicone and a compound comprising a silicone polymer, a quaternary ammonium group and a polyether in its molecule. The present invention also relates to a method for improving hair volume and providing the desired benefit to the hair, preferably hair smoothness, during topical application to the hair. Background of the Invention

[002] Hair care compositions are formulated for specific purposes, such as cleansing or conditioning benefits, or a combination of both. The preferred hair care composition will provide more benefits than simple cleansing and conditioning. Such compositions typically comprise one or more cleansing surfactants that generally aid in cleansing the hair and scalp, freeing them from unwanted dirt, particles, and greasy matter.

[003] Conditioning agents are often included in hair products, which can alter the appearance of the hair, helping to smooth it and adjust its texture. For example, silicones are an effective type of conditioning agent, which can provide great shine and help to smooth and straighten the hair. However, the inclusion of such a conditioning agent would compromise hair volume. It remains necessary to enhance hair volume while still providing the desired benefit to the hair.

[004] The inventors of the present invention surprisingly Petition 870250094736, dated 10 / 16 / 2025, pp. 35 / 61 2 / 19 found that including a combination of a small-sized silicone and a compound containing a silicone polymer, a quaternary ammonium group, and a polyether in its molecule, with a specific weight ratio in a hair care composition, can improve hair volume and provide desirable benefits to the hair, preferably smoothness of the strands. Brief Description of the Invention

[005] In a first aspect, the present invention is directed to a hair care composition comprising: i) a cleaning surfactant comprising an anionic surfactant; ii) a silicone and the average particle size of the silicone is from 50 nm to 800 nm; and iii) a compound comprising a silicone polymer, a quaternary ammonium group and a polyether in its molecule; wherein the weight ratio of the amount of said silicone to the amount of said compound is from 3:1 to 20:1.

[006] In a second aspect, the present invention is directed to a method of treating hair or scalp comprising the step of applying a composition of the first aspect to the scalp or hair.

[007] In a third aspect, the present invention is directed to a method for improving hair volume and providing the desired benefit to the hair, preferably softness, which comprises the step of applying the hair care composition of the first aspect to the hair surfaces of an individual, followed by rinsing these surfaces with water.

[008] In a fourth aspect, the present invention is directed to a composition of the first aspect for use in improving the Petition 870250094736, dated 10 / 16 / 2025, pp. 36 / 61 3 / 19 hair volume and desired hair benefit, preferably hair softness.

[009] All other aspects of the present invention will become more readily apparent upon consideration of the detailed description and examples that follow. Detailed Description of the Invention: Hair Care Composition

[010] “Hair care composition”, as used in this document, is intended to include a composition for topical application to the hair and / or scalp of mammals, especially humans. Such a composition may generally be classified as leave-in or rinse-out and includes any product applied to a human body also to enhance appearance, cleanliness, odor control or overall aesthetics. The composition of the present invention may be in the form of a liquid, lotion, cream, foam, scrub, gel or bar. Non-limiting examples of such compositions include leave-in hair lotions, rinse-out creams and shampoos, conditioners, shower gels or toilet deodorizers. The composition of the present invention is preferably a rinse-out composition, especially preferably a shampoo or a conditioner, and most preferably a shampoo. Several

[011] Except in examples, or where explicitly indicated otherwise, all numbers in this description that indicate quantities of material or reaction conditions, physical properties of materials and / or use may optionally be understood as modified by the expression “about”.

[012] All values ​​are by weight of the final hair care composition, unless otherwise specified. Petition 870250094736, dated 10 / 16 / 2025, pp. 37 / 61 4 / 19

[013] It should be noted that when specifying value ranges, any particular upper value can be associated with any particular lower value.

[014] To avoid confusion, the word “that includes” is intended to mean “that includes,” but not necessarily “that consists of” or “composed of.” In other words, the steps or options listed do not need to be exhaustive.

[015] The disclosure of the invention, as found in the present document, should be considered as covering all embodiments as found in the claims as multiply dependent on each other regardless of whether the claims can be found without multiple dependency or redundancy.

[016] When an attribute is disclosed in relation to a particular aspect of the invention (for example, a composition of the invention), such disclosure is also to be considered applicable to any other aspect of the invention (for example, a method of the invention) after appropriate modifications.

[017] The hair care composition of the present invention comprises a silicone, and the average particle size of the silicone ranges from 50 nm to 800 nm.

[018] The silicone of the present invention consists of emulsified droplets of silicone oil, which have an average droplet diameter (D50) of 50 nm to 800 nm, preferably 60 nm to 500 nm, more preferably 80 nm to 200 nm, and even more preferably 80 nm to 150 nm.

[019] The average diameter of silicone oil droplets can be determined using a laser light scattering technique, for example, using a 2600D Particle Sizer from Malvern Instruments. Petition 870250094736, dated 10 / 16 / 2025, pp. 38 / 61 5 / 19

[020] Suitable silicone compounds include polysiloxanes, in particular polydimethylsiloxane, which has the CTFA designation dimethicone. Also suitable for use in compositions of this invention (particularly shampoos and conditioners) are polydimethylsiloxanes having hydroxyl terminal groups, which have the CTFA designation dimethiconol. Another class of silicones that can be used are functionalized silicones, such as silicones with amino functionality, meaning a silicone containing at least one primary, secondary or tertiary amine group, or a quaternary ammonium group. Examples of suitable amino functional silicones include polysiloxanes with the CTFA designation amodimethicone. Also suitable for use in the compositions of this invention are silicone gums having a small degree of crosslinking, as described, for example, in document WO 96 / 31188.Preferably, the silicone compound comprises dimethicone, dimethiconol, amodimethicone, their derivatives or mixtures thereof. More preferably, the silicone compound comprises dimethiconol, dimethicone, derivatives or a mixture thereof, most preferably comprising dimethiconol.

[021] Emulsified silicones suitable for use in the hair care compositions of this invention are available as pre-formed silicone emulsions from silicone suppliers such as Dow Silicones Corporation and GE Silicones. The use of such a pre-formed silicone emulsion is preferred to facilitate processing and control the size of the silicone particles. Such pre-formed silicone emulsions will typically additionally comprise a suitable emulsifier and can be prepared by a chemical emulsification process, such as emulsion polymerization, or by mechanical emulsification using a high-shear mixer. Examples of suitable pre-formed silicone emulsions include Dowsil CE7051 (particle size: 80-130 nm), available from Dow. This is a dimethiconol emulsion. Petition 870250094736, dated 10 / 16 / 2025, pp. 39 / 61 6 / 19

[022] Preferably, the composition comprises silicone in an amount of 0.1 to 5%, preferably 0.2 to 2.5%, more preferably 0.3 to 1%, even more preferably 0.5 to 0.8% by weight of the composition.

[023] The hair care composition of the present invention comprises a compound having a silicone polymer, a quaternary ammonium group and a polyether group in its molecule. Preferably, the above compound has an average particle size not exceeding 1000 nm.

[024] These compounds are available under the trade name Silsoft Q from GE Bayer Silicones and known as CTFA Silicone Quternium-18. Another type of polymer is also known from Dow Corning under the trade name Dow Corning 5-7113 or Dow Corning CE-7114, and known as CTFA Silicone Quternium-16.

[025] It is preferable that the composition comprise from 0.01 to 2%, preferably from 0.02 to 1%, more preferably from 0.05 to 0.5%, even more preferably from 0.06 to 0.2% of the above compound by weight of the composition.

[026] According to this invention, the weight ratio of the amount of silicone to the amount of the compound above is from 3:1 to 20:1, preferably from 4:1 to 18:1, more preferably from 4.9:1 to 16:1, even more preferably from 8:1 to 15.7:1, with the most preferred being from 10:1 to 15.7:1.

[027] The composition, according to this invention, comprises a cleaning surfactant comprising an anionic surfactant.

[028] Non-limiting examples of suitable anionic surfactants are alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, alkanol isethionates, alkyl succinates, alkyl sulfosuccinates, alkyl ether sulfosuccinates, N-alkyl sarcosinates, phosphates of Petition 870250094736, dated 10 / 16 / 2025, pp. 40 / 61 7 / 19 Alkyl, alkyl ether phosphates and alkyl ether carboxylic acids and salts thereof, especially their sodium, magnesium, ammonium salts and mono-, di- and triethanolamine salts. The alkyl and acyl groups generally contain from 8 to 18, preferably from 10 to 16 carbon atoms and may be unsaturated. Alkyl ether sulfates, alkyl ether sulfosuccinates, alkyl ether phosphates and alkyl ether carboxylic acids and salts thereof may contain from 1 to 20 units of ethylene oxide or propylene oxide per molecule.Typical anionic surfactants for use in compositions of the invention include, without limitation, sodium oleyl succinate, ammonium lauryl sulfosuccinate, sodium lauryl sulfate, sodium lauryl ether sulfate, sodium lauryl ether sulfosuccinate, ammonium lauryl sulfate, sodium dodecylbenzene sulfonate, triethanolamine dodecylbenzene sulfonate, sodium cocoyl isethionate, sodium lauryl isethionate, lauryl ether carboxylic acid, sodium N-lauryl sarcosinate, or mixtures thereof.

[029] Preferred anionic surfactants are alkyl sulfates and alkyl ether sulfates. Preferred alkyl sulfates are C8-18 alkyl sulfates, more preferably C12-18 alkyl sulfates, preferably in the form of a salt with a solubilizing cation, such as sodium, potassium, ammonium or substituted ammonium. Examples are sodium lauryl sulfate (SLS) or sodium dodecyl sulfate (SDS). It is particularly preferred that the anionic surfactant be an alkyl ether sulfate. Preferred alkyl ether sulfates are those having the formula: RO(CH2CH2O)nSO3M; wherein R represents an alkyl or alkenyl chain containing 8 to 18 (preferably 12 to 18) carbon atoms; n represents a number with an average value greater than at least 0.5, preferably between 1 and 3, more preferably between 1 and 2; and M represents a solubilizing cation, such as sodium, potassium, ammonium, or substituted ammonium. An example is sodium lauryl ether sulfate (SLES).The preferred alkyl ether sulfate is lauryl ether sulfate. Petition 870250094736, dated 10 / 16 / 2025, pp. 41 / 61 8 / 19 sodium that has an average degree of ethoxylation of 0.5 to 3, preferably 1 to 3, more preferably 1 to 2.

[030] It is preferable that the anionic surfactant be an ethoxylated alkyl sulfate with a degree of ethoxylation less than 3, preferably an ethoxylated alkyl sulfate with a degree of ethoxylation less than 2, more preferably sodium laureth sulfate (1EO).

[031] Alternatively, it is preferable that the surfactant be sulfate-free.

[032] The composition may comprise an anionic alpha-olefin sulfonate surfactant of general formula (I): Ri-CH=CH-CH2-SO3-M+(I) wherein Ri is selected from linear or branched alkyl groups with 11 to 13 carbon atoms and their mixtures; and M represents a solubilizing cation.

[033] Preferably, Ri in the general formula (I) represents a linear C14 or C16 alkyl group.

[034] Preferably, M in the general formula (I) is selected from alkali metal cations (such as sodium or potassium), ammonium cations and substituted ammonium cations (such as alkylammonium, alkanolamonium or glucammonium).

[035] Commercially produced alpha olefin sulfonate anionic surfactants of general formula (I) can be produced by sulfating C14-16 olefins derived from natural gas. The process can also produce mixtures of homologues and low levels of unreacted olefins.

[036] Particularly preferred is alpha olefin sulfonate with an average of 14-16 carbons. A suitable example of such a material is Bioterge AS40 (ex Stepan).

[037] The amount of anionic surfactant of alpha sulfonate Petition 870250094736, dated 10 / 16 / 2025, pp. 42 / 61 9 / 19 olefin, at 100% activity, of the general formula (I) varies from 3 to 13%, preferably from 3.5 to 12%, more preferably from 3 to 10% (by weight, based on the total weight of the composition).

[038] The composition may comprise an amphoteric or zwitterionic surfactant, selected from an alkyl betaine of general formula (II), R2-N+(CH3)2-CH2-COO- M+(II) wherein R2 = C12 (Lauryl) or Coco derivative; an alkyl hydroxy sultaine of general formula (III), R3-N+(CH3)2-CH2-CH(OH)-CH2-SO3- M+(III) wherein R3 = C12 (Lauryl) or Coco derivative; an alkyl aminopropyl hydroxy sultaine of general formula (IV), R4-CO-NH-(CH2)3-N+(CH3)2-CH2-CH(OH)-CH2-SO3- M+(IV) wherein R4 = C12 (Lauryl) or Coco derivative; an alkyl amphoacetate of general formula (V), R5-CO-NH-(CH2)2-N(CH2-CH2-OH)(CH2-COO- M+) (V) wherein Rs = C12 (Lauryl) or Coco derivative; and mixtures thereof.

[039] The preferred surfactant (ii) is selected from coco betaine, lauryl hydroxy sultaine, coco aminopropyl hydroxy sultaine, lauryl amphotericin and mixtures thereof, more preferably selected from coco betaine, lauryl hydroxy sultaine and mixtures thereof. Alkyl hydroxy sultaines are preferred, particularly lauryl hydroxy sultaine.

[040] The amount of amphoteric or zwitterionic surfactants of general formula (II), (III), (IV) or (V) or mixtures thereof, preferably varies from 1 to 6%, more preferably from 1.5 to 5%, and most preferably from 2 to 3.5% (based on the total weight of the composition and 100% activity).

[041] The amphoteric or zwitterionic surfactant is preferably selected from an amphoteric betaine surfactant of general formula (II), Petition 870250094736, dated 10 / 16 / 2025, pp. 43 / 61 10 / 19 which is coconut betaine, an amphoteric surfactant of general formula (III), which is lauryl hydroxy sultaine, and mixtures thereof, in an amount of 1 to 4% (by weight based on the total weight of the composition and 100% activity).

[042] The combined amount of (i) and (ii) ranges from 4 to 20% by weight, preferably from 5 to 17% by weight, more preferably from 8 to 15% by weight (based on the total weight of the composition and 100% activity).

[043] The composition may comprise alpha olefin sulfonate in an amount ranging from 3.25 to 8% (by weight based on the total weight of the composition and 100% active material); and an amphoteric or zwitterionic surfactant selected from coco betaine, lauryl hydroxy sultaine, coco aminopropyl hydroxy sultaine, lauryl amphoteric acetate or mixtures thereof, in an amount ranging from 1 to 4% by weight of the composition.

[044] The ratio between the weight of the anionic surfactant alpha olefin sulfonate and the amphoteric surfactant can vary from 1:1 to 6:1, preferably from 1.5:1 to 5.

[045] Anionic surfactants are typically present in the hair care composition of the present invention at a level of 0.5 to 20%, more preferably 2 to 16% and most preferably 3 to 16%, by weight of the hair care composition.

[046] Examples of suitable amphoteric surfactants include alkylamine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulfobetaines (sultains), alkyl amphoacetates, alkyl amphopropionates, alkyl amidopropyl hydroxysultains, wherein the alkyl group has from 8 to 19 carbon atoms.

[047] Preferably, the amphoteric surfactant is a betaine surfactant. It is preferred that the betaine surfactant be one of the alkyl amidopropyl betaines. Cocamidopropyl betaine (CAPB) is particularly preferred. Petition 870250094736, dated 10 / 16 / 2025, pp. 44 / 61 11 / 19

[048] In a preferred embodiment, the composition comprises 0.1 to 10% by weight, preferably 0.5 to 8% by weight, more preferably 1 to 5% by weight of an amphoteric surfactant by weight of the total composition.

[049] The ratio of ethoxylated anionic surfactant to amphoteric surfactant wherein the ratio of anionic surfactant to amphoteric surfactant is less than 10:1, preferably from 2:1 to 10:1, more preferably from 3:1 to 9:1.

[050] The total amount of cleansing surfactant in a shampoo composition for use in the invention is generally 3 to 35% by weight, preferably 5 to 25% by weight, more preferably 7 to 16% by weight of the total composition.

[051] It is preferred that the hair care composition of the present invention comprise a scalp health agent. Suitable scalp health agents that can be used in this invention are selected from zinc pyrithione, piroctone compound, azole compound, selenium sulfide, hinokithium, salicylic acid and mixtures thereof. Alternatively, the scalp health agent may be a hydroxamic acid, preferably selected from caprylhydroxamic acid and benzohydroxamic acid. The preferred azole compound is ketoconazole, climbazole or mixtures thereof. Preferably, the scalp health agent is a piroctone compound, more preferably piroctone olamine. In another preferred embodiment, the scalp health agent is hinokithium.

[052] The hair care composition of the invention may comprise the scalp health agent in an amount of 0.01 to 10%, more preferably 0.05 to 5%, even more preferably 0.1 to 2%, and most preferably 0.2 to 1.5%, in Petition 870250094736, dated 10 / 16 / 2025, pp. 45 / 61 12 / 19 weight of hair care composition.

[053] The hair care composition, according to the present invention, comprises a cosmetically acceptable aqueous carrier.

[054] In a preferred embodiment, the hair care composition is a shampoo, particularly a rinse-out shampoo. The shampoo compositions for use in the invention are generally aqueous, that is, they have water or an aqueous solution or a lyotropic crystalline liquid phase as their main component. Suitably, the shampoo composition will comprise from 50 to 98%, preferably from 60 to 92%, of water by weight based on the total weight of the composition. Such compositions are referred to as having an aqueous base.

[055] The composition of the present invention may further comprise a cationic polymer.

[056] The composition may also comprise a cationic modified guar polymer having a molecular weight of 0.3 to 2.5 million Daltons and a cationic substitution degree of 0.05 to 0.4.

[057] It is preferable that the cationic modified guar polymer have a molecular weight of 1.0 to 2.3 million Daltons, more preferably 1.0 to 1.5 million Daltons.

[058] It is preferable that the cationic guar polymer have a cationic substitution degree of 0.1 to 0.3, more preferably 0.16 to 0.2.

[059] It is more preferable that the cationic modified guar polymer have a molecular weight of 1.0 million to 1.5 million Daltons and a cationic degree of substitution (DS) of 0.16 to 0.20. This DS value corresponds to a charge density of 0.85 to 1.05.

[060] The cationic guar polymer is preferably hydroxypropylthiomonium guar chloride. The guar polymer contains predominantly chains Petition 870250094736, dated 10 / 16 / 2025, pp. 46 / 61 13 / 19 galactomannan polymers. This polymer is available in various molecular weights and degrees of cationic substitutions that depend on how much guar has been hydrolyzed and cationized.

[061] Generally for cationic polysaccharide polymers, the hydroxyl groups of the unmodified monomeric sugar ring units are the sites for cationic substitution. The degree of substitution (DS) is typically in the range of 0 to 3, due to the fact that the monomeric sugar unit of most polysaccharides has, on average, three hydroxyl groups available for substitution. In addition to DS, the cationic charge in polymers can also be quantified as cationic charge density. DS has been previously determined by different methods. For example, the cationic charge density of the polymer has, in some cases, been calculated based on a percentage nitrogen content determined by the Kjeldahl method, as described in the US Pharmacopeia under chemical tests for nitrogen determination and is expressed in milliequivalents (meq) per gram.The cationic charge density of the polymer in the present invention is, however, calculated from the degree of substitution, which is measured by 1H NMR in a solvent mixture of deuterium oxide (D2O) and deuterium chloride (DCI).

[062] In many cases, the DS obtained by 1H NMR measurement may not be suitable for comparison with that obtained by the Kjeldahl method, due to the fact that the two methods are influenced by different factors.

[063] In the wide spectrum of available guar molecular weights, the cationic guar for use in the present invention has a molecular weight that is considered an “average” molecular weight. In the wide range of charge densities, the above range for use in the present invention is considered an “average” range. The cationic modified guar deposition polymer is preferably present in an amount of 0.001 to 2%, Petition 870250094736, dated 10 / 16 / 2025, pp. 47 / 61 14 / 19 more preferably from 0.01 to 1%, in 0.04 to 0.5%, more preferably 0.08 to 0.25% by weight of the composition.

[064] The compositions of the present invention may comprise an acrylamidopropyltrimonium chloride copolymer. Preferably, the copolymer also comprises acrylamide in addition to acrylamidopropyltrimonium chloride. The particularly preferred copolymer is an acrylamidopropyltrimonium chloride and acrylamide copolymer.

[065] The copolymer according to the present invention preferably has a charge density of 1.0 to 3.0 meq per gram (meq / g), more preferably 1.1 to 2.5 meq / g, even more preferably 1.2 to 2.5 meq / g, with a maximum preference of 1.3 to 2.5 meq / g. The copolymer preferably has a molecular weight of 100000 to 3000000 grams per mole (g / mol), more preferably 500000 to 2800000 g / mol, even more preferably 800000 to 2500000 g / mol, with a maximum preference of 1000000 to 2500000 g / mol. An example of a suitable copolymer is commercially available from Ashland under the trade name N-Hance SP-100®. N-Hance SP-100® has a charge density of 1.8 to 2.2 meq / g and a molecular weight of 1800000 to 2200000 g / mol.

[066] The hair care composition of the present invention may typically comprise the copolymer in an amount from 0.001 to 2%, more preferably from 0.01 to 1%, even more preferably from 0.01 to 0.8% and most preferably from 0.05 to 0.5% by weight of the composition.

[067] The water-insoluble conditioning agent may include a silicone-free conditioning agent comprising silicone-free oily or greasy materials, such as hydrocarbon oils, fatty esters and mixtures thereof.

[068] Preferably, the composition of the invention comprises Petition 870250094736, dated 10 / 16 / 2025, pp. 48 / 61 15 / 19 additionally a suspending agent. Suitable suspending agents are selected from polyacrylic acids, crosslinked acrylic acid polymers, copolymers of acrylic acid with a hydrophobic monomer, copolymers of monomers containing carboxylic acid and acrylic esters, crosslinked acrylic acid and acrylate ester copolymers, heteropolysaccharide gums and long-chain crystalline acyl derivatives. The long-chain acyl derivative is desirably selected from ethylene glycol stearate, fatty acid alkanolamides having 16 to 22 carbon atoms and mixtures thereof. Ethylene glycol distearate and polyethylene glycol distearate 3 are preferred long-chain acyl derivatives as they impart pearlescence to the composition. Polyacrylic acid is commercially available as Carbopol 420, Carbopol 488 or Carbopol 493.Crosslinked acrylic acid polymers with a polyfunctional agent can also be used; these are commercially available as Carbopol 910, Carbopol 934, Carbopol 941, and Carbopol 980. An example of a suitable copolymer of a monomer containing carboxylic acid and acrylic acid esters is Carbopol 1342. All Carbopol (registered trademark) materials are available from Goodrich.

[069] Suitable crosslinked polymers of acrylic acid and acrylate esters are Pemulen TR1 or Pemulen TR2. A suitable heteropolysaccharide gum is xanthan gum, for example, that available as Kelzan mu.

[070] Mixtures of any of the above suspending agents may be used. A mixture of crosslinked acrylic acid polymer and long-chain crystalline acyl derivative is preferred.

[071] The suspending agent is generally present in the hair care composition of this invention in an amount of 0.1 to 10%, more preferably 0.2 to 6% and most preferably 0.3 Petition 870250094736, dated 10 / 16 / 2025, pp. 49 / 61 16 / 19 at 4%, which is based on the total weight of the hair care composition and includes all ranges included in it.

[072] Preservatives may also be incorporated into the hair care composition of this invention to protect against the growth of potentially harmful microorganisms. Suitable traditional preservatives include alkyl esters of para-hydroxybenzoic acid, hydantoin derivatives, propionate salts, and a variety of quaternary ammonium compounds. Illustrative examples, however, without limitation, of the types of preservatives that may be used in this invention include, for example, phenoxyethanol, sodium salicylate, methylparaben, butylparaben, propylparaben, diazolidinyl urea, sodium dehydroacetate, benzyl alcohol, sodium benzoate, iodopropynyl butylcarbamate, caprylyl glycol, disodium EDTA, or mixtures thereof. In a particularly preferred embodiment, the preservative is sodium benzoate, phenoxyethanol, sodium salicylate, or a mixture thereof.Preservatives are preferably used in amounts ranging from 0.01 to 2% by weight of the hair care composition.

[073] The hair care composition of the present invention may contain other ingredients that are common in the art to improve physical properties and performance. Suitable ingredients include, but are not limited to, fragrances, colorants and pigments, pH adjusting agents, pearlescent or opacifying agents, viscosity modifiers, thickeners, and natural hair nutrients such as vegetable and fruit extracts, sugar derivatives, and amino acids. Method and Use

[074] The present invention provides a method for treating hair or scalp comprising the step of applying a composition of the first aspect to the hair or scalp. The method is of a non-therapeutic nature. Preferably, it is for cosmetic purposes. Petition 870250094736, dated 10 / 16 / 2025, pp. 50 / 61 17 / 19

[075] The present invention also provides a method for improving hair volume and providing the desired benefit to the hair, preferably softness, comprising the step of applying the first aspect hair care composition to the surfaces of the hair or scalp of an individual, followed by rinsing these surfaces with water. The method is of a non-therapeutic nature. Preferably, it is for cosmetic purposes. The desired hair softness is demonstrated by an average frictional energy not exceeding 250000 g.mm.

[076] The present invention also provides a composition of the first aspect for use in improving hair volume and providing the desired hair benefit, preferably straight hair.

[077] Preferably, the present invention also provides a composition of the first aspect for use in improving hair volume and providing desired benefits to the hair, preferably softness, while preventing or relieving the symptoms of dandruff on the scalp or hair. Examples Example 1

[078] This example demonstrated that the combination of a small-sized silicone and a compound containing a silicone polymer, a quaternary ammonium group, and a polyether in its molecule, with a specific weight ratio in a hair care composition, can improve hair volume while simultaneously providing the desired benefit for the hair, which is smoothness. Compositions according to the formulations detailed in Table 1 are prepared. All ingredients are expressed as a percentage by weight of the total formulation and as the active ingredient level. Petition 870250094736, dated 10 / 16 / 2025, pp. 51 / 61 18 / 19 Table 1 Ingredient Samples AB c 1 2 3 Water Up to 100 Up to 100 Up to 100 Up to 100 Up to 100 Sodium lauryl sulfate 10.00 10.00 10.00 10.00 10.00 10.00 Cocamidopropyl betaine 2.30 2.30 2.30 2.30 2.30 2.30 Acrylamidopropyltrimonium chloride / acrylamide copolymer 0.05 0.05 0.05 0.05 0.05 0.05 Dimethiconol (Average diameter D50: 80-130 nm) 1 0 0.50 0.83 0.91 0.94 Silicone Quaternium-16 (Dow Corning CE-7114) 0 1 0.50 0.17 0.09 0.06 Carbomer 0.35 0.35 0.35 0.35 0.35 0.35 Guar Hydroxypropyltrimonium Chloride 0.15 0.15 0.15 0.15 0.15 0.15 Preservative 0.50 0.50 0.50 0.50 0.50 0.50 Piroctone Olamine 0.35 0.35 0.35 0.35 0.35 0.35 Fragrance 0.80 0.80 0.80 0.80 0.80 0.80 Viscosity Modifier 0.40 0.40 0.40 0.40 0.40 0.40 pH Modifier 0.40 0.40 0.40 0.40 0.40 0.40 The weight ratio of cationic cellulose to small-sized silicone - - 1:1 4.9:1 10.1:1 15.67:1 Testing Method

[079] Hair volume test: Hair strands were washed twice with a 14% SLES solution to remove any deposited residue and dried at 25°C for 24 hours. Photos of the hair strand were taken in the hair volume cabinet (5532-8166, ETS INC.). And the volume area in the photo will be automatically calculated by the Switch Volume Rig software as base volume (initial data a.).

[080] Next, the hair strands were washed with the above shampoo samples and dried for 24 hours. Then, the hair volume was measured in the same way and calculated as post-wash volume (data b.). The boosted volume was calculated by c=ba. Each sample was repeated 3 times.

[081] Dry smoothness test: Hair strands were washed twice with control shampoo to remove any residue. Petition 870250094736, dated 10 / 16 / 2025, pp. 52 / 61 19 / 19 deposited, followed by washing with the above shampoo samples. After being dried at 25°C for 24 hours, the average surface friction energy of the hair was measured using a texture analysis machine (TA-XT plus, Stable Micro Systems Ltd.). Low surface friction energy indicates that the hair is smooth. Each sample was repeated 3 times.

[082] The result of the hair volume test is summarized in Table 2. Table 2 ABC Samples 1 2 3 Increased Volume (mm 2) 5082.30 2853.05 4689.72 5726.37 6402.58 6020.81

[083] It can be concluded from the results that Samples 1-3, which comprise a small-sized silicone and a compound comprising a silicone polymer, a quaternary ammonium group and a polyether in its molecule with a specific weight ratio within the scope of the present invention, can increase hair volume compared to Sample AC (outside the scope of the present invention).

[084] The result of the dry softness test is summarized in Table 3. Table 3 Samples ABC 1 2 3 Average frictional energy (g.mm) 22875.51 41786.33 26062.77 23658.00 23333.25 21875.98

[085] The above results indicate that Samples 1-3, which comprise a small-sized silicone and a compound comprising a silicone polymer, a quaternary ammonium group and a polyether in its molecule, with a specific weight ratio within the scope of the present invention, can also provide the desired benefit for the hair, which is the smoothness of the strands (average frictional energy not exceeding 250000 g.mm). Petition 870250094736, dated 10 / 16 / 2025, pp. 53 / 61

Claims

1 / 3 Claims 1. HAIR CARE COMPOSITION characterized by comprising: i) a cleansing surfactant comprising an anionic surfactant; ii) a silicone, and the average particle size of the silicone is from 50 nm to 800 nm; and iii) a compound comprising a silicone polymer, a quaternary ammonium group and a polyether in its molecule; wherein the weight ratio between the amount of said silicone and the amount of said compound is from 3:1 to 20:

1.

2. A hair care composition according to claim 1, characterized in that said silicone comprises dimethiconol, dimethicone, amodimethicone, derivatives or mixtures thereof, preferably comprising dimethiconol, dimethicone, derivatives or a mixture thereof, more preferably comprising dimethiconol.

3. Hair care COMPOSITION, according to claim 1 or 2, characterized in that said composition comprises 0.1 to 5%, preferably 0.2 to 2%, more preferably 0.3 to 1% and, additionally, preferably 0.5 to 0.8% of said silicone by weight of the composition.

4. A composition for hair care, according to any one of claims 1 to 3, characterized in that said compound has an average particle size not exceeding 1000 nm.

5. Hair care COMPOSITION, according to any one of claims 1 to 3, said composition being characterized by comprising from 0.01 to 2%, preferably from 0.02 to 1%, more preferably from 0.05 to 0.5% of said compound by weight of Petition 870250094736, dated 10 / 16 / 2025, page 59 / 61 2 / 3 composition.

6. Hair care COMPOSITION, according to any one of claims 1 to 4, said composition being characterized by comprising a scalp health agent selected from zinc pyrithione, piroctone compound, azole compound, selenium sulfide, salicylic acid, hinokitiol and mixtures thereof.

7. Hair care COMPOSITION, according to claim 6, wherein said composition is characterized by comprising from 0.01 to 10%, preferably from 0.05 to 5%, more preferably from 0.1 to 2% and, additionally, preferably from 0.2 to 1.5% of said scalp health agent by weight of the composition.

8. Hair care COMPOSITION, according to any one of claims 1 to 7, characterized in that said anionic surfactant is an ethoxylated alkyl sulfate with a degree of ethoxylation of less than 3, preferably sodium lauryl ether sulfate.

9. Hair care composition, according to any one of claims 1 to 7, characterized in that said anionic surfactant is sulfate-free.

10. Hair care composition according to any one of claims 1 to 8, said composition being characterized by additionally comprising a cationic polymer.

11. A hair care composition according to any one of claims 1 to 10, characterized in that said composition comprises an amphoteric surfactant, preferably a betaine surfactant, more preferably an alkyl amidopropyl betaine surfactant.

12. Hair care COMPOSITION, according to any one of claims 1 to 11, said composition being characterized as a shampoo. Petition 870250094736, dated 10 / 16 / 2025, pp. 60 / 61 3 / 3 13. METHOD FOR TREATING HAIR AND / OR SCALP characterized by comprising the step of applying a composition, as defined in any one of claims 1 to 12, to the hair or scalp.

14. METHOD FOR IMPROVING HAIR VOLUME and providing the desired benefit to the hair, preferably softness, characterized by comprising the step of applying the hair care composition, as defined in any of claims 1 to 12, to the hair surfaces of an individual, followed by rinsing these surfaces with water.

15. COMPOSITION, according to any one of claims 1 to 12, characterized by being for use in improving hair volume and providing the desired benefit to the hair, preferably hair smoothness. Petition 870250094736, dated 10 / 16 / 2025, pp. 61 / 61