Multimodal hair care compositions containing cationic guar blends and methods for making same

Abstract

A multimodal hair care composition is provided comprising 0.1-99 wt.% of at least one cationically modified guar blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa, and 0.1-99 wt.% of at least one cosmetic ingredient.

Description

[Technical field]

[0001] The present disclosure relates to multi-modal hair care compositions comprising cationic guar blends and methods for their preparation. [Background technology]

[0002] Hair is a keratinous filament that is subject to a variety of repetitive stresses, including mechanical stress from daily grooming practices (such as frequent brushing and combing), environmental stresses (such as UV exposure), harmful chemical treatments (such as bleaching, coloring, etc.), and burns from the use of heat styling tools. The damaging effects of these exposures often manifest as several types of damage to the hair fiber, including structural deterioration of the cortex, lifted cuticles, split ends, and other damaging effects that often result in further damage and hair breakage. Hair care and hair styling formulators are constantly searching for products with multi-functional benefits that can effectively treat and style hair. Synthetic and naturally derived polymers are widely used to achieve the desired sensory properties in hair care. Hair styling and conditioning products encompass both fully synthetic and naturally derived polymers to provide conditioning and styling benefits. Consumers and formulators are searching for sustainable, environmentally friendly (e.g., biodegradable) and naturally derived solutions. Many traditional synthetic hair care and styling polymers do not meet the sustainability standards provided by governmental and non-governmental organizations. Therefore, there is increasing pressure on hair care and styling product manufacturers to provide formulations that meet the expected care and styling benefits while using naturally derived, sustainable, biodegradable ingredients.The increasing demand for sustainable ingredients has led the hair care industry to move away from using synthetic chemicals and towards biodegradable, naturally derived, plant-based chemicals.Polysaccharides are a class of naturally derived polymers with good substantivity profiles and are typically used in rinse-off formulations, especially shampoos, to provide conditioning and active deposition.

[0003] US Pat. No. 4,061,602, assigned to American Cyanamid Company, discloses conditioning shampoo compositions containing cationic derivatives of natural gums (such as guar) as the active conditioning agent.

[0004] U.S. Patent No. 11,052,033, assigned to Rhodia Operations, Inc., discloses a personal care composition comprising a guar derivative having an average molecular weight of about 250,000 g / mol to about 60,000 g / mol and guar hydroxypropyltrimonium chloride having a degree of cationic substitution of about 0.20 to 0.30.

[0005] U.S. Patent Application Publication No. 2020-0163861A1, assigned to Rhodia Operations, discloses cationic polygalactomannans containing nonionic hydroxyalkyl substituents, having a Brookfield RVT viscosity of greater than 700 mPa·s at 20 rpm at 25°C and a concentration of 1 pbw in water, e.g., 700-1,200 mPa·s.

[0006] The present inventors have attempted to prepare hair care compositions using naturally derived biodegradable and cationic guar blends. Thus, the applicants disclose cationic polysaccharides traditionally used in rinse-off formulations that provide excellent styling and conditioning benefits to hair. By combining cationic polysaccharides with various molecular weights and degrees of substitution, it is possible to customize the styling and care benefits of the formulation. The combination of polysaccharides with various chemical properties allows the formulator to "dial in" performance and aesthetic properties that are important to the consumer, such as hair stiffness, conditioning, slip properties, humidity resistance, styleability and style durability. In addition, the cationic polysaccharides provide split end repair, protection from thermal and mechanical damage to hair, and a 450% hydrating effect. 0 Helps protect hair from hot flat ironing up to F. Summary of the Invention

[0007] In one aspect, the present application provides a multi-modal hair care composition comprising: (i) 0.1-99 wt.% of at least one cationically modified guar blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa; and (ii) 0.1-99 wt.% of at least one cosmetic ingredient.

[0008] In another aspect, the present application provides a hair care composition for repairing split ends, comprising: (i) 0.1-99 wt.% of at least one cationically modified guar blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa; and (ii) 0.1-99 wt.% of at least one cosmetic ingredient. to provide.

[0009] In another aspect, the present invention provides an aqueous hair mousse composition comprising: (i) 0.1-10 wt. % of a hair care composition comprising a cationically modified guar blend comprising (a) 1-99 wt. % of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt. % of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa; (ii) 1.0-60 wt. % of at least one solvent; (iii) 0.1-10 wt. % of at least one cosmetic functional additive; and (iv) 0.1-95 wt. % of water.

[0010] In another aspect, the present application provides a method for repairing split ends in hair, comprising: (i) contacting hair having split ends with a multimodal hair care composition comprising 0.1-99 wt.% of at least one cationically modified guar blend, the blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa, (ii) 0.0-99 wt.% of a nonionic guar, and (iii) 0.1-99 wt.% of at least one cosmetic ingredient, and then rinsing the hair with water.

[0011] In another aspect, the present application provides a method for protecting hair from thermal and mechanical damage comprising: (i) contacting hair with a multimodal hair care composition comprising: 0.1-99 wt.% of at least one cationically modified guar blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa; (ii) 0.0-99 wt.% of a nonionic guar; and (iii) 0.1-99 wt.% of at least one cosmetic ingredient.

[0012] In another aspect, the present application provides a method for producing a 450% or more cationically modified guar blend, comprising: (i) contacting hair with a multimodal hair care composition comprising: (a) 1-99% by weight of at least one cationically modified guar blend having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99% by weight of at least one cationically modified guar blend having a weight average molecular weight in the range of about 500 to about 1500 KDa; (ii) 0.0-99% by weight of a nonionic guar; and (iii) 0.1-99% by weight of at least one cosmetic ingredient. 0 This invention provides a method for protecting hair from the heat of hot flat ironing up to 100°C. [Brief description of the drawings]

[0013] In addition to the advantages and objects described in this disclosure, one or more of the briefly summarized descriptions of the present disclosure may be supplemented by reference to specific embodiments thereof shown in the attached drawings. These drawings form a part of this specification. However, it should be noted that the attached drawings show preferred embodiments of the present disclosure and therefore are not intended to limit its scope. [Figure 1] FIG. 1 shows the tribological behavior of the individual components listed in Tables 1, 3 and 4. [Diagram 2] FIG. 2 shows the tribological behavior of the individual components (Tables 1 and 2) compared to the blends (Tables 7 and 8). [Diagram 3] FIG. 3 shows the increased performance on hair of the blend compared to the individual components (illustrations are optimized for weight ratio, molecular weight, and charge density). [Figure 4] FIG. 4 shows split end repair efficacy testing with guar blend compositions. [Diagram 5] FIG. 5 shows stereomicroscopic observations of split end repair efficacy after 1× leave-in treatment on damaged hair. [Figure 6] FIG. 6 shows stereomicroscopic observations of split end repair efficacy after combing (mechanical challenge) on damaged hair. [Figure 7] FIG. 7 shows stereomicroscopic observations of split end repair efficacy after 1× leave-in treatment on damaged hair. [Figure 8] FIG. 8 shows stereomicroscopic observations of split end repair efficacy after 1× leave-in treatment on damaged hair. [Figure 9] FIG. 9 shows the thermal protection of hair from flat iron heat. [Figure 10] FIG. 10 shows the protection of hair from thermal and mechanical damage. [Figure 11] FIG. 11 shows the thermal protection of hair from flat iron heat. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] The technical solutions of the present disclosure are clearly described and better understood in combination with the following specific embodiments, but those skilled in the art will understand that the embodiments described below are some of the embodiments of the present disclosure, but not all of them, and are used only for illustrating the present disclosure and should not be considered as limiting the scope of the present disclosure. If any specific conditions or processes are not shown in the examples, it should be understood that the conditions are conventionally used by manufacturers and are commercially available.

[0015] As utilized in accordance with the present disclosure, the following terms, unless otherwise indicated, shall be understood to have the following meanings:

[0016] Unless otherwise defined herein, technical terms used in connection with the disclosed and / or claimed inventive concepts shall have the meanings commonly understood by those of ordinary skill in the art. Further, unless otherwise required by context, singular terms shall include the plural and plural terms shall include the singular.

[0017] The singular forms "a," "an," and "the" include the plural forms unless the context clearly dictates otherwise or are clearly implied by the context to which reference is made. The terms "comprising" and "comprises of" include more restrictive claims such as "consisting essentially of" and "consisting of."

[0018] For purposes of the following detailed description, other than in any examples, or where otherwise indicated, for example, the numbers expressing quantities of ingredients used in the specification and claims are to be understood as being modified in all instances by the term "about." The numerical parameters set forth in the specification and appended claims are approximations that may vary depending upon the desired properties obtained in the practice of the invention.

[0019] All percentages, parts, proportions, and ratios used herein are by weight of the total composition unless otherwise specified. All such weights pertaining to listed ingredients are based on the active level and therefore do not include solvents or by-products that may be included in commercially available materials, unless otherwise specified.

[0020] All publications, articles, papers, patents, patent publications and other references cited herein are incorporated in their entirety for all purposes to the extent consistent with the disclosure of this specification.

[0021] Use of the term "at least one" is understood to include one as well as any amount greater than one, including but not limited to 1, 2, 3, 4, 5, 10, 15, 20, 30, 40, 50, 100, etc. The term "at least one" can range up to 100 or 1000 or more, depending on the term it is attached to. Additionally, the amount of 100 / 1000 should not be considered limiting, as lower or higher limits may also yield satisfactory results.

[0022] Use of the term "cationic polymer" refers to a polymer that exhibits at least one primary amine, secondary amine, or tertiary amine, or quaternary ammonium group in their backbone or branched, or substituted form.

[0023] Use of the term "charge density" refers to the ratio of the number of charges on a polymer unit to the molecular weight of the polymer unit. Charge density is further defined as the number of milliequivalents of charges per gram of polymer (meq / g).

[0024] As used in this specification, the words "comprising" (and any form of "comprise" such as "comprising", "comprises"), "having" (and any form of "having" such as "have" and "has"), "including" (and any form of "including" such as "includes", "include"), or "containing" (and any form of "contains", "contain", etc.) are inclusive or open-ended and do not exclude additional, unrecited elements or method steps.

[0025] The term "cosmetically acceptable" refers to a molecular entity that is listed in the Pharmacopoeia, deemed safe, and approved by a regulatory agency for use in topical contact with tissue (e.g., the epidermis) without undue toxicity, incompatibility, instability, irritation, allergic reaction, etc. This term is not intended to limit compositions described for use only as cosmetics (e.g., the composition may be used as a medicine).

[0026] The use of the term "degree of substitution (DS)" generally refers to the number of cationic groups per anhydrosugar unit (cationic groups per galactomannan unit). Galactomannans are linear polysaccharides -(1,4)-linked D-mannose units substituted with branched chains of D-galactose monomers.

[0027] The use of the term "multi-modal" refers to a blend of multiple cationic polysaccharides having different molecular weight and degree of substitution values. These blends include polysaccharides having multiple molecular weight and degree of substitution ranges.

[0028] The use of the term "polymer" refers to a compound that includes repeating structural units (monomers) connected by covalent chemical bonds. Polymers may be further derivatized, crosslinked, grafted, or endcapped. Non-limiting examples of polymers include copolymers, terpolymers, tetrapolymers, quaternary polymers, and homologs. The term "copolymer" refers to a polymer that consists essentially of two or more different types of monomers polymerized to obtain the copolymer.

[0029] Use of the terms "personal care composition" and "cosmetic" refers to compositions intended for use on or in the human body, such as the epidermis, hair, oral cavity, etc., including those that alter the color and appearance of the epidermis and hair.

[0030] In one non-limiting embodiment, the present disclosure is directed to a multimodal hair care composition comprising: (i) at least one cationically modified guar blend comprising (a) 1-99 wt. % of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt. % of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa; and (ii) 0.1-99 wt. % of at least one cosmetic ingredient.

[0031] The present application uses cationic guar polymers with different physical properties, such as weight average molecular weight and degree of substitution, in a blend. Such blends of cationic moieties with different molecular weight and degree of substitution values ​​provide unique benefits to hair care compositions, such as customizable aesthetic and styling properties, as well as functional benefits. Thus, the present application provides a multimodal hair care composition, where multimodal means multiple cationic guars with different ranges of weight average molecular weight and degree of substitution. Thus, the multimodal hair care composition is a bi-modal, tri-modal, quadra-modal, or penta-modal blend of cationic guar polymers.

[0032] Guar gum is a natural compound extracted from the seeds of the guar bean (Cyamopsis tetragonoloba taub). Chemically, it contains β1,4-glycosidic mannose units that statistically alternate between single α1,6-linked galactose units that form side branches.

[0033] Guar polysaccharides can be substituted with derivatives that include cationic moieties that can be linked to reactive functional groups by divalent linking groups such as alkylene or oxyalkylene groups.Suitable cationic moieties include primary, secondary, or tertiary amino groups, or quaternary ammonium, sulfonium, or phosphonium groups.Suitable quaternary ammonium groups are selected from trialkylammonium moieties, such as trimethylammonium, triethylammonium, or tributylammonium moieties, aryldialkylammonium moieties, such as benzyldimethylammonium moieties.Cationic guars are polysaccharide derivatives produced from the quaternization of guar.They are widely used in shampoos, detergents, hair conditioners, etc., due to their unique conditioning properties.

[0034] In another embodiment, the cationically modified guar blend is a combination of (a) a cationic guar having a weight average molecular weight in the range of about 50 to about 500 KDa and (b) a cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa.

[0035] In another embodiment, the cationically modified guar blend is a combination of (a) a cationic guar having a weight average molecular weight in the range of about 200 to about 500 KDa and (b) a cationically modified guar having a weight average molecular weight in the range of about 800 to about 1200 KDa.

[0036] Thus, in non-limiting embodiments of the present application, the weight average molecular weight of the cationic guar ranges from about 50 to about 100 KDa, about 100 to about 150 KDa, about 150 to about 200 KDa, about 200 to about 250 KDa, about 250 to about 300 KDa, about 300 to about 350 KDa, about 350 to about 400 KDa, about 400 to about 450 KDa, and about 450 to about 500 KDa.

[0037] Thus, in non-limiting embodiments of the present application, the weight average molecular weight of the cationic guar is in the range of about 500 to about 600 KDa, about 600 to about 700 KDa, about 700 to about 800 KDa, about 800 to about 900 KDa, about 900 to about 1000 KDa, about 1000 to about 1100 KDa, about 1100 to about 1200 KDa, about 1200 to about 1300 KDa, about 1300 to about 1400 KDa, and about 1400 to about 1500 KDa.

[0038] The disclosed weight average molecular weight ranges of the cationically modified guar blends comprising (a) cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa and (b) cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa are present in weight ratios of 92:8, 80:20, 75:25, and 60:40.

[0039] In another embodiment, the cationic character of the polysaccharide derivative can also be expressed in terms of "degree of substitution" (DS). The degree of substitution of the cationically modified guar blends comprising (i) (a) a cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa; and (b) a cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa, is present in the ratio of the degree of substitution of the blend (i) (a) or (b) being 0.01 to 0.50, 0.01 to 0.10, 0.1 to 0.20, 0.2 to 0.30, and 0.3 to 0.4.

[0040] In another embodiment, the present application provides a cationically modified guar blend comprising: (i) (a) a cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa; and (b) a cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa, wherein blend (i) (a) or (b) has a degree of cationic substitution in the range of 0.08 to 3.0.

[0041] The present application utilizes blends of cationic or cationically modified guars in preparing hair care compositions. wherein the cationic modified guar is selected from cationic hydroxyethyl guar, cationic hydroxypropyl guar, cassia hydroxypropyltrimonium chloride, and guar hydroxypropyltrimonium chloride, hydroxypropyl guar hydroxypropyltrimonium chloride (chemically, guar gum, 2-hydroxypropyl 2-hydroxy-3-(trimethylammonio)propyl ether chloride); guar hydroxypropyltrimonium chloride (chemically, guar gum, 2-hydroxy-3-(trimethylammonio)propyl ether chloride); Caesalpinia Spinosa hydroxypropyltrimonium chloride (chemically, tara gum, 2-hydroxy-3-(trimethylammonio)propyl ether chloride); Locust Bean hydroxypropyltrimonium chloride; Trigonella Foenum-Graecum hydroxypropyltrimonium chloride.

[0042] In another non-limiting embodiment, the composition of the present invention provides (i) a blend of (a) guar hydroxypropyltrimonium chloride having a degree of substitution (DS) in the range of 0.01-0.3 and a molecular weight in the range of about 50 to about 500 KDa and (b) guar hydroxypropyltrimonium chloride having a degree of substitution (DS) in the range of 0.01-0.3 and a molecular weight in the range of about 800 to about 1200 KDa, and (ii) a blend of (a) guar hydroxypropyltrimonium chloride and (b) cationic hydroxypropyl guar.

[0043] In another embodiment, the hair care composition of the present invention further comprises a nonionic guar selected from the group consisting of hydroxymethyl guar, hydroxyethyl guar, hydroxypropyl guar, and hydroxybutyl guar.

[0044] In another embodiment, the hair care compositions of the present invention may be used in hair care formulations in the range of from about 0.01% to about 10.0% by weight, and from about 0.01 to about 5.0% by weight, based on the total weight of the formulation.

[0045] In other non-limiting embodiments, the ranges can include about 0.01% to about 1.0% by weight; about 1.0% to about 2.0% by weight; about 2.0% to about 3.0% by weight; about 3.0% to about 4.0% by weight; and about 4.0% to about 5.0% by weight.

[0046] In another embodiment, the hair care compositions of the present invention are used for hair styling, hair straightening, (iii) repairing split ends, (iv) smoothing the hair cuticle, (v) conditioning hair, (vi) protecting hair from thermal and mechanical damage, and (vii) protecting hair from heat damage from hot styling tools up to 450° F.

[0047] The hair care compositions of the present invention containing the cationically modified guar blend exhibit a pH in the range of from about 3 to about 13. Other non-limiting ranges of pH of the present invention include from about 3 to about 6; from about 6 to about 9; and from about 9 to about 13.

[0048] Hair care compositions may contain, but are not limited to, acids, amino acids, antidandruff agents, antistatic agents, antioxidants, anti-inflammatory agents, antibacterial agents, acidifying agents, basifying agents, bodying agents, and the like. agent), buffering agent, bleaching agent, cationic surfactant, cleaning agent, chelating agent, collagen, conditioning ingredient, compressed gas, dye, deionized water, defoaming agent, emollient, emulsifier, softening agent, fatty substance, fragrance, filler, foam stabilizer, functional polymer, gel former, humectant, α-hydroxy carboxylic acid, hydrophilic active agent, hair conditioning ingredient, hydrotrope, keratin hydrolysate, light protection agent, lipophilic active agent, lipid, moisturizer, neutralizing agent, oxidizing agent, organosilicon, protein hydrolysate, hydrotrope, fragrance, pigment, preservative, propellant, protein, pH adjuster, polysaccharide, polyalkylene glycol, reducing agent, rheology modifier, solvent, solubilizer, suspending agent, silicone, silicone-containing polymer, split modifier modifiers, shine enhancers, softeners, sequestrants, surfactants, styling polymers, thickeners, texturizing agents, colorants, tanning agents, UV-A or UV-B blockers / filters, UV protection agents, thickeners, vitamins, waterproofing agents, water softeners, humectants, and blends thereof.

[0049] Non-limiting examples of polysaccharides include cassia, chitosan, chitin, dextrin, dextran, rosin, inulin, starch and starch derivatives, cellulose and cellulose derivatives, alginates, carrageenan, gellan, agar, pectin, arabinoxylan, pullulan, and maltodextrin.

[0050] Non-limiting examples of antioxidants may be added to promote improved shelf life of the hair care compositions of the present application. Exemplary antioxidants that may be used include vitamins such as vitamin E, vitamin E acetate, vitamin C, vitamin A, and vitamin D and their derivatives. Further exemplary antioxidants include, but are not limited to, the propyl, octyl, and dodecyl esters of gallic acid, butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), and nordihydroguaiaretic acid. Generally, the amount of antioxidant required in the compositions of the present invention ranges from about 0.2% to about 2% by weight, based on the total weight of the composition, and may be provided in an amount of about 0.5% to about 1.5% by weight.

[0051] Neutralizing agents or pH adjusters are used to achieve the desired pH for hair care compositions.Non-limiting examples of neutralizing agents or pH adjusters include cosmetically acceptable bases selected from sodium hydroxide and potassium hydroxide; organic bases such as methylethylamine (MEA), ammonia, aminoalcohols, lithium hydroxide, diethanolamine (DEA); triethanolamine (TEA), aminomethylpropanol, and mixtures thereof.

[0052] Non-limiting examples of neutralizing or pH adjusting agents include cosmetically acceptable acids selected from mineral acids, carboxylic acids, and polymeric acids. Specific examples of mineral acids are hydrochloric acid, nitric acid, phosphoric acid, and sulfuric acid. Examples of suitable carboxylic acids are citric acid, glycolic acid, lactic acid, maleic acid, malic acid, succinic acid, glutaric acid, benzoic acid, malonic acid, salicylic acid, gluconic acid, and mixtures thereof. Examples of suitable polymeric acids include linear poly(acrylic) acids and their copolymers (e.g., maleic acid-acrylic acid copolymers, sulfonic acid-acrylic acid copolymers, and styrene-acrylic acid copolymers), crosslinked polyacrylic acids having molecular weights of less than about 250,000, poly(methacrylic) acids, and natural polymeric acids such as carrageenic acid, carboxymethylcellulose, and alginic acid. The neutralizing or pH adjusting agent can be present in an amount of about 0.01% to about 8% by weight of the total hair care composition.

[0053] Non-limiting examples of cationic surfactants include quaternary ammonium salts, such as di(C10-C24) alkyl dimethyl ammonium chloride or bromide, preferably di(C12-C18) alkyl dimethyl ammonium chloride or bromide; (C10-C24) alkyl dimethyl ethyl ammonium chloride or bromide; (C10-C24) alkyl trimethyl ammonium chloride or bromide, preferably cetyl trimethyl ammonium chloride or bromide. and (C20-C22) alkyltrimethylammonium chloride or bromide; (C10-C24) alkyldimethylbenzylammonium chloride or bromide, preferably (C12-C18) alkyldimethylbenzylammonium chloride; N-(C10-C18) alkylpyridinium chloride or bromide, preferably N-(C12-C16) alkylpyridinium chloride or bromide; N-(C10-C18)-alkylisoquinolinium chloride, bromide bromine or monoalkyl sulfate;N-(C12-C18)-alkylpolyoylaminoformylmethylpyridinium chloride;N-(C12-C18)-alkyl-N-methylmorpholinium chloride, bromide or monoalkyl sulfate;N-(C12-C18)-alkyl-N-ethylmorpholinium chloride, bromide or monoalkyl sulfate;(C16-C18)-alkylpentaoxyethylammonium chloride;Diisobutylphenoxyethoxyethyldimethylbenzyl salts of N,N-diethylaminoethyl stearylamide and -oleylamide with hydrochloric acid, acetic acid, lactic acid, citric acid, phosphoric acid; N-acylaminoethyl-N,N-diethyl-N-methylammonium chloride, bromide or monoalkyl sulfate, and N-acylaminoethyl-N,N-diethyl-N-benzylammonium chloride, bromide or monoalkyl sulfate, where acyl is preferably stearyl or oleyl.

[0054] Non-limiting examples of cationic surfactants are selected from the group consisting of cetrimonium chloride, cetrimonium bromide, dicetyldimonium chloride, and palmitamidopropyltrimonium chloride.

[0055] Non-limiting examples of preservatives include phenoxyethanol, formaldehyde solution, parabens, pentadiol, sorbic acid, caprylyl glycol, raspberry ketone, benzoic acid, dehydroacetic acid, benzyl alcohol, propanediol, propylene carbonate, sodium benzoate, potassium sorbate, diazolidinyl urea, imidazolidinyl urea, iodopropynyl butylcarbamate, methylisothiazolinone, methylchloroisothiazolinone, phenylpropanol, 2-bromo-2-nitropane 1,3-diol, sodium hydroxymethylglycinate, 1,2-hexanediol, ethylhexylglycerin, octenidine HCl, and chlorhexidine.

[0056] Non-limiting examples of pearlescent agents include glycol distearate esters, such as ethylene glycol distearate, but also fatty acid monoglycol esters or triethylene glycol distearate.

[0057] Non-limiting examples of colorants, colorants or dyes as used herein include natural food grade colors and dyes suitable for food, drug, and cosmetic applications. These colorants are also known as FD&C and D&C dyes and lakes, which are preferably water soluble in nature.

[0058] In another embodiment, the hair care compositions of the present invention can be formulated as an aerosol, cream, emulsion, gel, lotion, mousse, powder, paste, solution, spray, shampoo, vesicle dispersion, or wax.

[0059] The hair care composition of the present invention is formulated as a mousse, styling gel, cream, or hair wax, (i) the composition is in bimodal, trimodal, quadramodal, or pentamodal form, and (ii) the composition comprises (i) 0.1-99 wt.% of at least one cationically modified guar blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa, and (iii) 0.1-99 wt.% of at least one cosmetic ingredient.

[0060] In another embodiment, the present application provides a hair care composition for repairing split ends comprising: (i) 0.1-99 wt.% of at least one cationically modified guar blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa; and (iii) 0.1-99 wt.% of at least one cosmetic ingredient.

[0061] The hair care composition is a leave-in composition. The hair care composition is a bimodal, trimodal, quadramodal, or pentamodal hair care composition.

[0062] In another embodiment, the present application provides a method for repairing split ends in hair comprising: (i) contacting hair having split ends with a multimodal hair care composition comprising 0.1-99 wt.% of at least one cationically modified guar blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa, (ii) 0.0-99 wt.% of a nonionic guar, and (iii) 0.1-99 wt.% of at least one cosmetic ingredient, and then rinsing the hair with water.

[0063] In another embodiment, the present invention provides an aqueous hair mousse composition comprising: (i) 0.1-10 wt.% of a hair care composition comprising a cationically modified guar blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa; (ii) 1.0-60 wt.% of at least one solvent; (iii) 0.1-10 wt.% of at least one cosmetic functional additive; and (iv) 0.1-95 wt.% of water.

[0064] The selection of the propellant or mixture of propellants may be used to achieve a particular spray pattern, to control particle size, to meet government regulations, or for cost considerations. The propellant may be selected from the group consisting of hydrocarbons, hydrofluorocarbons, ethers, and combinations thereof. Non-limiting examples of propellants include pentane, n-butane, isobutane, propane, 1,1,1,2-tetrafluoroethane (134a), 1,1-difluoroethane (152a), dimethyl ether, compressed air, compressed nitrogen, compressed carbon dioxide, nitrous oxide, and mixtures thereof.

[0065] The total amount of propellant, in one or more embodiments, is from about 2 to about 97% by weight, in other embodiments, from about 4 to about 90% by weight, and in other embodiments, from about 5 to about 80% by weight, based on the total weight of the entire composition.

[0066] Characterization of the friction and wear properties of hair and scalp is essential to develop better shampoos and conditioners that make hair feel smooth and look natural when untied. Friction and wear experiments were performed using a flat-on-flat tribometer under reciprocating motion to simulate scalp-hair contact and hair-hair contact under nominal temperature and humidity conditions. The hair care compositions of the present invention can achieve a wide range of tribological behaviors as determined by measurements made with a 3-ball on plate tribology attachment of a rheometer and a Transpore TM surface and applied normal force.

[0067] Equipment and setup details Methods: - Apparatus: ARES-G2 rheometer, manufactured by TA Instruments - 3 ball on plate tribology attachment of the rheometer - Surface: Ball: smooth surface steel, Strip: rough 3M Transpore tape Settings: Load force -5N, T = 25oC, angular velocity: ramp

[0068] The compositions of the present invention have improved humidity resistance, stiffness, durability of hold, low slippage, enhanced foaming and curl retention. The compositions of the present invention exhibit high humidity curl retention of about 80% to about 100% over a 24 hour period at 90% humidity and 80° F.

[0069] The compositions of the present invention comprise cationically modified guar that is naturally derived and biodegradable.

[0070] The multimodal compositions provide improved delivery aesthetics such as hair cushion and slip while allowing for improved curl retention, hold and stiffness uniformity.

[0071] In another embodiment, the present application provides a method for thermal and mechanical protection from brush and blow drying comprising: (i) contacting hair with a multimodal hair care composition comprising 0.1-99 wt.% of at least one cationically modified guar blend comprising (a) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa, (ii) 0.0-99 wt.% of a nonionic guar, and (iii) 0.1-99 wt.% of at least one cosmetic ingredient.

[0072] In another embodiment, the present application provides a method for producing a 450% or more cationically modified guar blend, comprising: (i) contacting hair with a multimodal hair care composition comprising: (a) 1-99 wt.% of at least one cationically modified guar blend having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1-99 wt.% of at least one cationically modified guar blend having a weight average molecular weight in the range of about 500 to about 1500 KDa; (ii) 0.0-99 wt.% of a nonionic guar; and (iii) 0.1-99 wt.% of at least one cosmetic ingredient. 0 This invention provides a method for protecting hair from the heat of hot flat ironing up to 100°C.

[0073] Certain aspects of the present application are further illustrated in detail by the following examples, which are provided herein for the purpose of illustrating the present application and are not intended to be limiting thereof. EXAMPLES

[0074] Hair care compositions prepared using various cationically modified guar polymer blends were effectively subjected to testing to analyze and compare the performance of the polymer blends of the present invention to that of commercially available synthetic polymers. The compositions of the present invention are compared to commercially available synthetic polymers Polyquaternium-11 (PQ-11) and Polyquaternium-4 (PQ-4).

[0075] Commercially available controls

[0076] Example 1: Mousse composition (comparative example)

[0077] A control sample was prepared using the following ingredients: [Table 1]

[0078] Example 2: Mousse composition (comparative example)

[0079] A control sample was prepared using the following ingredients: [Table 2]

[0080] Individual Guar

[0081] Example 3: Mousse composition A mousse was prepared using the following ingredients: [Table 3]

[0082] Example 4: Mousse composition A mousse was prepared using the following ingredients: [Table 4]

[0083] Example 5: Mousse composition A mousse was prepared using the following ingredients: [Table 5]

[0084] Example 6: Mousse composition A mousse was prepared using the following ingredients: [Table 6]

[0085] Bimodal Guar Blend Example 7: Mousse composition A mousse composition was prepared using a blend of guar hydroxypropyltrimonium chloride having different ranges of molecular weights and degrees of substitution. [Table 7]

[0086] Example 8: Mousse Composition A mousse composition was prepared using a blend of guar hydroxypropyltrimonium chloride having different ranges of molecular weights and degrees of substitution. [Table 8]

[0087] Example 9: Mousse composition A mousse composition was prepared using guar hydroxypropyltrimonium chloride and hydroxypropyl guar. [Table 9]

[0088] Bimodal Guar Blend Working Example: A blend of guar with different molecular weights was used to prepare the 1% polymer, the composition details of which are given below: [Table 10]

[0089] Example 16: A blend of guar with different molecular weights was used to prepare about 2% of the total polymer, the composition details are given below: [Table 11-1] [Table 11-2]

[0090] Example 17: A blend of guar with different molecular weights was used to prepare about 1% of the total polymer, the composition details are given below: [Table 12]

[0091] Trimodal Guar Blend Example 18: A mousse composition was prepared using a blend of guar hydroxypropyltrimonium chloride having different ranges of molecular weights and degrees of substitution. [Table 13]

[0092] Example 19: A mousse composition was prepared using a blend of guar hydroxypropyltrimonium chlorides having different ranges of molecular weights and degrees of substitution. [Table 14]

[0093] Example 20: A mousse composition was prepared using a blend of guar hydroxypropyltrimonium chloride having different ranges of molecular weights and degrees of substitution. [Table 15]

[0094] Example 21: A mousse composition was prepared using a blend of guar hydroxypropyltrimonium chloride having different ranges of molecular weights and degrees of substitution. [Table 16]

[0095] Example 22: A mousse composition was prepared using a blend of guar hydroxypropyltrimonium chloride having different ranges of molecular weights and degrees of substitution. [Table 17]

[0096] Working Example: Trimodal guar blends using cationic cassia, guar hydroxypropyltrimonium chloride and hydroxypropyl guar hydroxypropyltrimonium chloride with three different molecular weight ranges as shown in the table below. [Table 18]

[0097] Working Example: Another set of trimodal guar blends using cationic cassia, guar hydroxypropyltrimonium chloride and hydroxypropyl guar hydroxypropyltrimonium chloride with three different molecular weight ranges as shown in the table below. [Table 19]

[0098] Quadramodal Guar Blend Working Example: Quadramodal guar blends using cationic cassia, guar hydroxypropyltrimonium chloride and hydroxypropyl guar hydroxypropyltrimonium chloride with three different molecular weight ranges as shown in the table below. [Table 20]

[0099] Working Example: Quadramodal guar blends using cationic cassia, guar hydroxypropyltrimonium chloride and hydroxypropyl guar hydroxypropyltrimonium chloride with three different molecular weight ranges as shown in the table below. [Table 21]

[0100] Penta-Pentamodal Guar Blend Working Example: Guar blends with cationic cassia, guar hydroxypropyltrimonium chloride and hydroxypropyl guar hydroxypropyltrimonium chloride with different molecular weight ranges as shown in the table below: [Table 22]

[0101] Example 52: High Humidity Curl Retention Test Results Samples from Tables 1, 7, 8 and 9 were subjected to the High Humidity Curl Retention (HHCR) Test (90% relative humidity, 80°F for 48 hours) and the results are tabulated below.

[0102] Methods: Moisture resistance 0.30 g of mousse was applied to clean, damp hair tresses (International Hair Importers; dark brown European, 2.0 g, 1.0 inch wide, 6.5 inch long), rolled diagonally with a 0.625 inch roller, dried under diffuse heat, and equilibrated to 40 RH, 25oC. The rollers were removed and the tresses were hung on a horizontally lined board marked with 0.25 inch lines and placed in a high humidity environment (90 RH, 27oC). An initial measurement of hair length was taken at the base of the curl. Additional measurements were taken over a 48 hour period. Table 21 shows the humidity resistance calculated by the following formula: (Figure 5) (Lo-Lt / Lo-Li) x 100 (at time t) where Lo is the fully extended hair length, Li is the hair length before exposure (initial), and Lt is the hair length after exposure time t. [Table 23]

[0103] Discussion of the test results: The examples provided above disclose the individual samples from Tables 1, 2, 3 and 4; and the guar blends from Tables 7 and 8. Figure 1 discloses the tribological behavior of the individual samples from Tables 1, 3 and 4. Figure 2 discloses the tribological behavior of the individual samples (Tables 1 and 2) compared to the guar blend samples (Tables 7 and 8).

[0104] Figure 3 shows the improvement in hair performance with the blends of the present invention (blends a, b, c) over the individual samples. These multimodal compositions allow for improved curl retention, hold and stiffness variation while providing improved delivery aesthetics such as cushion in the hair and slip through the hair.

[0105] Example 53: Repair of split ends The split end repair benefit was evaluated using an aqueous solution of the blend dissolved in an aqueous carrier. Virgin European hair (6 inches long, 1 inch wide, 6.5g net weight, medium brown, medium density) was used from International Hair Importers & Products. The hair was bleached with Wella Blondor bleaching powder and 40V developer for 35 minutes at 40°C. The hair was rinsed, washed with 12% active SLES-2EO solution, and air dried. Split ends were induced by brushing the hair and blow drying for 2 hours. The tresses were periodically inspected under a magnifying glass to ensure the presence of 20 split end fibers in each tress. Each split end fiber was marked and tagged. Digital photographs of each fiber were taken with a Nikon SMZ 1500 stereo microscope before and after treatment. The damp hair tresses were treated with 0.14g of polymer solution per gram of hair, massaged, combed, and then air dried. Split end repair was assessed using a scoring scale of 1=end split, 0.5=partial split, and 0=no split. After scoring and taking digital photographs, the tresses were combed 20 times with a fine tooth comb, assessed using the above scoring scale, and digital photographs were taken under a stereo microscope. Repair was calculated using the following formula:

number

[0106] Samples from Table 11 were evaluated for split end repair. The results are shown in the graphs of Figures 5 and 6. Samples from Table 12 were evaluated for split end repair. The results are shown in the graphs of Figures 7 and 8. Figure 5 shows an example of a fiber under test using the blend composition. The figures submitted with the application demonstrate the effectiveness of the blends as leave-ins, showing the percentage of repair measured before and after combing after a single treatment. All blends show positive initial split end repair values ​​after one treatment, indicating toughness against mechanical stress (combing). The higher the split end repair percentage, the better the effectiveness.

[0107] Example 54: Protection of hair from thermal and mechanical damage Hair tresses (high density, European, virgin, dark brown, 6 inches long, 1.75 inches wide, 3.5 g net weight) from International Hair Importers & Products were used to evaluate the thermal / mechanical protection provided by the polymer blends. The hair was washed with 12% active SLES-2EO solution, rinsed, and then treated with 0.14 g of polymer solution per gram of hair, massaged, and combed for even distribution. The hair was brushed and blow-dried for 3 minutes using a 2-in-1 hair dryer brush at high heat of approximately 120°C. The cycle of washing, treating, and drying the hair was repeated a total of seven times. After the seven cycles, hair fibers from each hair tress were extracted and analyzed by scanning electron microscopy (SEM). Images were collected at 2000x magnification at equal intervals along the fiber for each fiber. Figure 10 is an example of the blend compositions of Table 12, showing the thermal / mechanical protection from brushing and blow-drying as compared to the untreated, brushed, and blow-dried controls. Without the blend, significant cuticle lifting, fragmentation, and removal was observed.

[0108] Example 55: Protecting hair from heat caused by hot flat ironing Hair tresses (European, virgin, dark brown, fine density, 6" long, 1.75" wide, 3.5g net weight) from International Hair Importers & Products were used. The hair was washed with 12% active SLES2EO solution, rinsed, and treated with 0.14g of polymer solution per gram of hair, massaged for even distribution, then blow-dried on a cool setting until dry. A flat iron was used at 450 0The temperature was set at 0.5°C to 10°F. Accuracy was ensured with a digital multimeter / infrared thermometer. The flat iron was pulled up and down the tress in 3 seconds, and cycled for a total of 4 minutes of heat exposure. Single fibers were taken from the tress and analyzed by differential scanning calorimetry (TA Instruments Model Q2000). The thermal protection composition of the present invention is an aqueous solution in which the blend is dissolved in an aqueous carrier. The present invention is an improvement to the hair styling process, where the composition of the present invention can protect hair from damage caused by thermal injury. Decomposition of proteins due to thermal exposure results in a decrease in denaturation temperature and denaturation enthalpy. Higher TD (denaturation temperature) and ΔHD (denaturation enthalpy) indicate less damage. As seen in Figure 9, the denaturation temperature (TD) and denaturation enthalpy (ΔHD) of hair treated with blends F, G, J, and K demonstrate an improvement over untreated and heated hair samples, providing protection to the hair texture.

[0109] Sample test conditions: 2° C. / min; 25-160° C.; 10 mg snippet in 50 μL H2O; n = 5. The results are tabulated below and shown graphically in FIG. 9 and FIG. 11. [Table 24]

[0110] Thus, the inventors have observed that cationic guar blends exhibit a wide range of tribological behaviors compared to individual samples, and provide the ability to optimize usage levels, weight ratios, and mw / ds to deliver friction behaviors similar to those of commercial counterparts.Furthermore, the compositions of the present invention that include cationic guar blends are more advantageous than prior art compositions in the following respects: (i) being versatile and working in different forms such as cream rinses, in gel form or as leave-in systems; (ii) helping to improve the organoleptic properties of hair performance properties such as stiffness, light fastness, and humidity resistance; (iii) exhibiting positive initial split end repair values ​​after one treatment and exhibiting toughness against mechanical stress (combing); and (iv) Protecting the hair cortex from thermal damage when exposed to heat, as evidenced by higher denaturation temperature (TD) and ΔHD (denaturation enthalpy) values.

[0111] While the compositions and methods of the disclosed and / or claimed inventive concepts have been described with reference to specific embodiments, it will be apparent to those skilled in the art that variations can be made to the compositions and / or methods, and in the steps or sequence of steps, of the methods described herein without departing from the concept, spirit and scope of the disclosed and / or claimed inventive concepts. All such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope and concept of the disclosed and / or claimed inventive concepts.

Claims

1. (i) 0.1 to 99% by weight of at least one cationically modified guar blend comprising: (a) 1 to 99% by weight of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa; and (b) 1 to 99% by weight of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa; (ii) 0.1 to 99% by weight of at least one cosmetic ingredient; 1. A multimodal hair care composition comprising:

2. 10. The hair care composition of claim 1, optionally further comprising 0.0 to 99% by weight of nonionic guar.

3. 2. The hair care composition of claim 1, wherein the cationically modified guar blend (i) has (a) a weight average molecular weight in the range of about 200 to about 500 KDa and (b) a weight average molecular weight in the range of about 800 to about 1200 KDa.

4. (A) the weight average molecular weights of (a) and (b) of said cationically modified guar blend (i) are present in a weight ratio of 92:8, 80:20, 75:25, and 60:40; (B) The hair care composition according to claim 1, wherein the degree of substitution (DS) of (a) or (b) of the cationically modified guar blend (i) is present in a ratio of 0.01 to 0.

50.

5. 5. The hair care composition of claim 4, wherein the degree of substitution of (a) or (b) of the cationically modified guar blend (i) is present in the ratio of 0.01 to 0.10, 0.1 to 0.20, 0.2 to 0.30, and 0.3 to 0.

4.

6. 10. The hair care composition of claim 1 which is a bimodal, trimodal, quadramodal or pentamodal blend of cationically modified guars.

7. 2. The hair care composition of claim 1, wherein the cationically modified guar blend is selected from the group consisting of cationic hydroxypropyl (HP) guar, guar hydroxypropyltrimonium chloride, and cassia hydroxypropyltrimonium chloride.

8. 3. The hair care composition of claim 2, wherein the nonionic guar is selected from the group consisting of nonionic hydroxymethyl guar, hydroxyethyl guar, hydroxypropyl (HP) guar, and hydroxybutyl guar.

9. The cationically modified guar blend comprises: (i) a blend of (a) guar hydroxypropyltrimonium chloride having a degree of substitution (DS) ranging from 0.01 to 0.3 and a molecular weight ranging from about 50 to about 500 KDa, and (b) guar hydroxypropyltrimonium chloride having a degree of substitution (DS) ranging from 0.01 to 0.3 and a molecular weight ranging from about 800 to about 1200 KDa; and (ii) A blend of (a) guar hydroxypropyltrimonium chloride and (b) cationic hydroxypropyl guar 2. The hair care composition of claim 1, selected from the group comprising:

10. The cosmetic ingredient may be selected from the group consisting of acids, amino acids, antidandruff agents, antistatic agents, antioxidants, anti-inflammatory agents, antibacterial agents, acidifying agents, basifying agents, excipients, buffers, bleaching agents, cationic surfactants, detergents, chelating agents, collagen, conditioning ingredients, compressed gases, dyes, deionized water, antifoaming agents, skin softeners, emulsifiers, softening agents, fatty substances, fragrances, fillers, foam stabilizers, functional polymers, gel formers, humectants, α-hydroxycarboxylic acids, hydrophilic active agents, hair conditioning ingredients, hydrotropes, keratin hydrolysates, light protection agents, lipophilic active agents, lipids, moisturizing agents, neutralizing agents, oxidizing agents, organic silicones, 10. The hair care composition of claim 1, wherein the additive is selected from the group consisting of protein hydrolysates, hydrotropes, fragrances, pigments, preservatives, propellants, proteins, pH adjusters, polysaccharides, polyalkylene glycols, reducing agents, rheology modifiers, solvents, solubilizers, suspending agents, silicones, silicone-containing polymers, split modifiers, shine enhancers, softeners, sequestering agents, surfactants, styling polymers, thickeners, texturizing agents, colorants, tanning agents, UV-A or UV-B blockers / filters, ultraviolet light protection agents, thickening agents, vitamins, waterproofing agents, water softeners, humectants, and blends thereof.

11. 10. The hair care composition of claim 1, wherein the hair care composition is used for (i) hair styling, (ii) hair straightening, (iii) split end repair, (iv) hair cuticle smoothing, (v) hair conditioning, (vi) protecting hair from thermal and mechanical damage, and (vii) protecting hair from heat damage from hot styling tools up to 450°F.

12. 10. The hair care composition of claim 1, wherein the pH ranges from about 3 to about 13.

13. 10. The hair care composition of claim 1, formulated as an aerosol, cream, emulsion, gel, lotion, mousse, powder, paste, solution, spray, shampoo, vesicle dispersion, or wax.

14. 10. The hair care composition of claim 1, which is an aerosol, a mousse, or an actuated hairspray.

15. 10. The hair care composition of claim 1 used in a hair care formulation in a range of about 0.01% to about 10.0% by weight, or about 0.01 to about 5.0% by weight, based on the total weight of the hair care formulation.

16. 11. The hair care composition of claim 10, wherein the surfactant is selected from the group consisting of amphoteric surfactants, cationic surfactants, anionic surfactants, nonionic surfactants, zwitterionic surfactants, and mixtures thereof.

17. 17. The hair care composition of claim 16, wherein the cationic surfactant is selected from the group consisting of cetrimonium chloride, cetrimonium bromide, dicetyldimonium chloride, and palmitamidopropyltrimonium chloride.

18. 10. The hair care composition of claim 1, exhibiting high humidity curl retention of about 80% to about 100% over 24 hours at 90% humidity and 80°F.

19. 10. The hair care composition of claim 1, which delivers a broad range of tribological behavior, exhibits improved humidity resistance, stiffness, hold durability, low slippage, foam enhancement and curl retention, is naturally derived and is biodegradable.

20. 1. A hair care composition for repairing split ends comprising: (i) 0.1 to 99% by weight of at least one cationically modified guar blend comprising: (a) 1 to 99% by weight of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa; and (b) 1 to 99% by weight of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa; and (ii) 0.1 to 99% by weight of at least one cosmetic ingredient.

21. 21. The hair care composition of claim 20, which is a leave-in composition.

22. 21. The hair care composition of claim 20, which is a bimodal hair care composition.

23. 21. The hair care composition of claim 20 comprising a guar hydroxypropyltrimonium chloride and a hydroxypropyl guar hydroxypropyltrimonium chloride blend.

24. (i) 0.1 to 10% by weight of the hair care composition of claim 1; (ii) 1.0 to 60 wt. % of at least one solvent; (iii) 0.1 to 10% by weight of at least one cosmetic functional additive; and (iv) An aqueous hair mousse composition comprising 0.1 to 95% by weight of water.

25. The at least one cosmetic functional ingredient may be selected from the group consisting of acids, amino acids, antidandruff agents, antistatic agents, antioxidants, anti-inflammatory agents, antibacterial agents, acidifying agents, basifying agents, excipients, buffers, bleaching agents, cationic surfactants, cleaning agents, chelating agents, collagen, conditioning ingredients, compressed gases, dyes, deionized water, antifoaming agents, emollients, emulsifiers, softening agents, fatty substances, fragrances, fillers, foam stabilizers, functional polymers, gel formers, humectants, alpha-hydroxy carboxylic acids, hydrophilic actives, hair conditioning ingredients, hydrotropes, keratin hydrolysates, photoprotectants, lipophilic actives, lipids, moisturizers, neutralizing agents, oxidizing agents, 25. The mousse composition of claim 24, wherein the additive is selected from organosilicones, protein hydrolysates, hydrotropes, fragrances, pigments, preservatives, propellants, proteins, pH adjusters, polysaccharides, polyalkylene glycols, reducing agents, rheology modifiers, solvents, solubilizers, suspending agents, silicones, silicone containing polymers, split modifiers, shine enhancers, softeners, sequestrants, surfactants, styling polymers, thickeners, texturizing agents, colorants, tanning agents, UV-A or UV-B blockers / filters, ultraviolet light protection agents, thickening agents, vitamins, waterproofing agents, water softeners, humectants, and blends thereof.

26. (i) the preservative is selected from the group consisting of phenoxyethanol, caprylyl glycol, or mixtures thereof; (ii) the cationic surfactant is cetrimonium chloride, cetrimonium bromide, dicetyldimonium chloride, or palmitamidopropyltrimonium chloride; 26. A mousse composition according to claim 25, wherein (iii) the gas propellant is selected from the group consisting of dimethyl ether, isobutane, 1,1-difluoroethane, tetrafluoropropene, propane, compressed air, compressed nitrogen, compressed carbon dioxide, nitrous oxide, and mixtures thereof.

27. 1. A method for repairing split ends in hair comprising: (i) contacting hair having split ends with a multimodal hair care composition comprising: (a) 1-99 wt. % of at least one cationically modified guar blend having a weight average molecular weight in the range of about 50 to about 500 KDa; and (b) 1-99 wt. % of at least one cationically modified guar blend having a weight average molecular weight in the range of about 500 to about 1500 KDa; (ii) 0.0-99 wt. % of a nonionic guar; and (iii) 0.1-99 wt. % of at least one cosmetic ingredient; and then rinsing the hair with water.

28. 1. A method for thermal and mechanical protection from brush and blow drying comprising: (i) contacting hair with a multimodal hair care composition comprising: (a) 1-99 wt. % of at least one cationically modified guar blend having a weight average molecular weight in the range of about 50 to about 500 KDa; and (b) 1-99 wt. % of at least one cationically modified guar blend having a weight average molecular weight in the range of about 500 to about 1500 KDa; (ii) 0.0-99 wt. % of a nonionic guar; and (iii) 0.1-99 wt. % of at least one cosmetic ingredient.

29. (i) contacting hair with 0.1 to 99 wt. % of at least one cationically modified guar blend comprising (a) 1 to 99 wt. % of at least one cationically modified guar having a weight average molecular weight in the range of about 50 to about 500 KDa, and (b) 1 to 99 wt. % of at least one cationically modified guar having a weight average molecular weight in the range of about 500 to about 1500 KDa, (ii) 0.0 to 99 wt. % of a nonionic guar, and (iii) 0.1 to 99 wt. % of at least one cosmetic ingredient. 0 How to protect hair from the heat of hot flat ironing up to F.

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