The present disclosure relates to hair care and conditioning compositions; and to methods for conditioning and styling the hair using the compositions.

BACKGROUND

Many individuals suffer from dry and damaged hair. Dryness and damage can occur due to several factors including weather exposure, mechanical treatments (e.g. brushing hair), excessive treatments using chemicals, dying hair, heat styling, etc. In combination, using cleansing products that can be excessively stripping of hair's natural oils, can also lead to split ends, dull hair, and exacerbate dry hair. To mitigate the damage, oil treatments, conditioner, hair masks, and chemical treatments are commonly used.

The popularity and usage of oils for dry hair treatments has increased due to their effectiveness and simplicity. Commonly used oils include olive oil, mineral oil, avocado oil, apricot kernel oil, rice bran oil, and coconut oil. However, one problem is that effects are not usually seen after more than several hours (e.g. 8 hours) of treatment and several treatments are usually required, making it time consuming and labor intensive.

Individuals desire a treatment for hair or damaged hair that is not time consuming and labor intensive to use. A variety of approaches have been developed to condition the hair. A common method of providing conditioning benefit is through the use of conditioning agents such as cationic surfactants and polymers, high melting point fatty compounds, low melting point oils, silicone compounds, and mixtures thereof. Most of these conditioning agents are known to provide various conditioning benefits.

However, there is still a need for providing improved hair manageability, for example, improved hair alignment, reduced unwanted volume (especially reduced frizz), and increased shine. There is also a need to develop hair care products that can impart other benefits at the same time in addition to caring and conditioning

benefits, such as styling, volume, shaping, curl definition (for curly or wavy hair), and restylability or reshaping (without the need to reapply the product).

SUMMARY OF THE DISCLOSURE

The instant disclosure relates to hair care and conditioning compositions; and to methods for conditioning and styling the hair using the compositions. The compositions are transparent and substantially anhydrous. Upon application to wet or damp hair, the composition forms a lamellar phase, which surprisingly enhances the deposition of conditioning active agents such as cationic surfactants and fatty compounds onto the hair. The deposition of these conditioning active agents impart a smoothing and softening effect to the hair, resulting in the hair having a shiny and nourished appearance. The hair is easily detangled and dryness and fizziness are reduced or minimized. The compositions typically include:

propylene glycol;

one or more monoalcohols having from 2 to 6 carbon atoms;

wherein the weight ratio of the propylene glycol to the monoalcohol(s) (propylene glycol : monoalcohol(s)) is from 20:1 to 1 :1 ; one or more cationic surfactants;

one or more fatty compounds;

wherein the composition is a solubilized, non-emulsified composition until applied to the wet or damp hair, whereupon the composition forms a lamellar phase in situ.

The compositions can be applied immediately after shampooing the hair, for example, in place of a conditioner. The compositions can also be applied on hair immediately after shampooing and conditioning the hair, for example, as a mask rinse-off or leave-in treatment. The compositions can also be applied before shampooing the hair as pre-treatment compositions. Moreover, the compositions are applied to wet or damp hair and massaged into the hair to ensure uniform coverage. After application to the hair, the hair may be rinsed with water, dried, and styled as desired. Another unique aspect of the compositions is that they may be used as a leave-on product. The compositions can be applied to wet or damp hair

and allowed to remain on the hair indefinitely, i.e., the hair composition is not removed or rinsed from the hair prior to styling the hair.

BRIEF DESCRIPTION OF THE DRAWING

Implementation of the present technology will now be described, by way of example only, with reference to the attached figures, wherein:

FIG. 1 includes pictures of hair swatches treated with compositions according to the instant disclosure and subjected to humidity; and

FIG. 2 compares the smoothness of hair swatches treated with compositions according to the instant disclosure.

It should be understood that the various aspects are not limited to the arrangements and instrumentality shown in the drawings.

DETAILED DESCRIPTION OF THE DISCLOSURE

The present disclosure relates to a transparent and substantially anhydrous cosmetic composition comprising:

about 20 to about 95 wt.% of propylene glycol;

about 5 to about 70 wt.% of one or more monoalcohols having from 2 to 6 carbon atoms;

wherein the weight ratio of the propylene glycol to the monoalcohol(s) (propylene glycol : monoalcohol(s)) is from 20:1 to 1 :1 ;

about 0.1 to about 5 wt.% of one or more cationic surfactants; and about 0.1 to about 20 wt.% of one or more fatty compounds;

wherein the composition is a solubilized, non-emulsified composition until applied to the wet or damp hair, whereupon the composition forms a lamellar phase in situ; and all percentages by weight are based on the total weight of the composition.

The term "transparent” with respect to a transparent composition indicates that the composition has transmittance of at least 80% at a wavelength of 600 nm, for example measured using a Lambda 40 UV-visible spectrometer. The compositions may have, for example, a transmittance of at least 80%, at least 90%, or at least 95% at a wavelength of 600 nm, measured, for example, using a Lambda 40 UV-visible spectrometer. The term“clear” is interchangeable with the term“transparent” for purposes of the instant disclosure.

The compositions are essentially anhydrous. The phrase“essentially anhydrous” is interchangeable with the phrase“essentially free of water” or “substantially free of water.” An essentially anhydrous composition may include up to 5 wt.% of water regardless of whether the water is added to the composition or part of a raw material. Nonetheless, the essentially anhydrous composition may include less than 4 wt.%, less than 3 wt.%, less than 2 wt.%, less than 1 wt.%, or less than 0.5 wt.% of water.

The compositions of the instant disclosure typically have a viscosity of about 10 mPa.s to about 10,000 mPa.s at 25°C. The viscosity measurements can be carried out, for example, using a Broooksfield viscometer, Model RVT (Brookfield Engineering Laboratories, Inc.) at about 20 revolutions per minute (RPM), at ambient room temperature of about 20 to 25°C; spindle sizes may be selected in accordance with the standard operating recommendations form the manufacturer, ranging from disk spindle No. 1 to No. 4.

The compositions of the instant disclosure include propylene glycol (propane-1 ,2-diol). Propylene glycol was found to be particularly advantageous because it provides greater deposition of the conditioning active ingredients (e.g., cationic surfactants and fatty compounds) than other glycols. The total amount of propylene glycol can vary but is typically about 20 to about 95 wt.% of propylene glycol, based on the total weight of the composition. In some instances, the total amount of propylene glycol is about 30 to about 90 wt.%, about 40 to about 90 wt.%, or about 50 to about 90 wt.%, including ranges and sub-ranges therebetween. Similarly, is some cases, the total amount of propylene glycol may be about 20 to about 80 wt.%, about 30 to about 80 wt.%, about 40 to about 80 wt.%, or about 50 to about 80 wt.%, including ranges and sub-ranges therebetween, based on the total weight of the composition.

In addition to the propylene glycol, the compositions of the instant disclosure may optionally include additional glycols, for example, one or more glycols selected from ethylene glycol, butylene glycol, hexylene glycol, pentylene glycol, diethylene glycol, dipropylene glycol, 1 ,3 propanediol, and glycerin.

The total amount of additional glycols (glycols other than propylene glycol) can vary but in some instances is from about 0.1 to about 50 wt.%, based on the total weight of the composition. In some cases, the total amount of additional glycols (glycols other than propylene glycol), may be about 0.1 to about 40 wt.%, about 0.1 to about 30 wt.%, about 0.1 to about 20 wt.%, about 0.1 to about 10 wt.%, about 1 to about 50 wt.%, about 1 to about 40 wt.%, about 1 to about 30 wt.%, about 1 to about 20 wt.%, or about 1 to about 10 wt.%, including ranges and sub-ranges

therebetween based on the total weight of the composition.

In some instances, the compositions of the instant disclosure include butylene glycol but other instances, the compositions are free or essentially free of butylene glycol. If present, the total amount of butylene glycol can vary but is typically from about 0.1 to about 50 wt.%, based on the total weight of the composition. In some cases, the total amount of butylene glcyol may be about 0.1 to about 40 wt.%, about 0.1 to about 30 wt.%, about 0.1 to about 20 wt.%, about 0.1 to about 10 wt.%, about 1 to about 50 wt.%, about 1 to about 40 wt.%, about 1 to about 30 wt.%, about 1 to about 20 wt.%, or about 1 to about 1 0 wt.%, including ranges and sub-ranges therebetween based on the total weight of the composition.

The compositions include one or more monoalcohols having from 2 to 6 carbon atoms. For example, the one or more monoalcohols may be selected from ethanol, propanol, butanol, pentanol, hexanol, isopropyl alcohol, cycohexanol, isobutyl alcohol, 2-methyl-2-butanol (2-methyl butan-2-ol), and a mixture thereof.

The total amount of monoalcohols can vary but is typically from about 5 to about 70 wt.%, based on the total weight of the composition. In some instances, the total amount of monoalcohols is from about 5 to about 60 wt.%, about 5 to about 50 wt.%, about 5 to about 45 wt.%, about 5 to 40 wt.%, about 5 to 35 wt.%, about 5 to 30 wt.%, about 10 to about 70 wt.%, about 10 to about 60 wt.%, about 1 0 to about 50 wt.%, about 10 to about 45 wt.%, about 10 to about 40 wt.%, about 1 0 to about 35 wt.%, or about 10 to about 30 wt.%, including ranges and sub-ranges

therebetween based on the total weight of the composition.

In some instances, the one or more monoalcohls include ethanol. For example, the compositions may include ethanol and optionally one or more additional monoalcohols having from 2 to 6 carbon atoms. The total amount of ethanol may vary but it typically from about 5 to about 60 wt.%, based on the total weight of the composition. In some instances, the total amount of ethanol is from about 5 to about 50 wt.%, about 5 to about 45 wt.%, about 5 to 40 wt.%, about 5 to 35 wt.%, about 5 to 30 wt.%, about 10 to about 70 wt.%, about 10 to about 60 wt.%, about 10 to about 50 wt.%, about 10 to about 45 wt.%, about 10 to about 40 wt.%, about 10 to about 35 wt.%, or about 10 to about 30 wt.%, including ranges and sub ranges therebetween, based on the total weight of the composition.

The total amount of propylene glycol is typically at least the same or higher than the total amount of the monoalcohol(s) having from 2 to 6 carbon atoms in the compositions. Often, the compositions include more propylene glycol than monoalcohol(s) having from 2 to 6 carbon atoms, i.e., a higher weight percent of the composition is propylene glycol than monoalcohols having from 2 to 6 carbon atoms. The ratio of propylene glycol to the total amount of monoalcohol(s) having from 2 to 6 carbon atoms (propylene glycol : monoalcohol(s)) may be from 20:1 to 1 :1 . In some instances, the ratio is from 20:1 to 1 .1 :1 , 20:1 to 1 .5:1 , or 20:1 to 2:1 , including ranges and sub-ranges therebetween. Similarly, in some instances, the ratio is from 18:1 to 1 :1 , 18:1 to 1 .1 :1 , 18:1 to 1 .5 to 1 , 18:1 to 2:1 , including ranges and sub ranges therebetween.

The term "cationic surfactant" means a surfactant that may be positively charged when it is contained in the compositions according to the disclosure. This surfactant may bear one or more positive permanent charges or may contain one or more functional groups that are cationizable in the composition according to the disclosure. Non-limiting examples of cationic surfactants include cetrimonium chloride, stearimonium chloride, behentrimonium chloride, behentrimonium methosulfate, behenamidopropyltrimonium methosulfate, stearamidopropyltrimonium chloride, arachidtrimonium chloride, distearyldimonium chloride, dicetyldimonium chloride, tricetylmonium chloride, oleamidopropyl dimethylamine, linoleamidopropyl dimethylamine, isostearamidopropyl dimethylamine, oleyl hydroxyethyl imidazoline, stearamidopropyldimethylamine, behenamidopropyldimethylamine,

behenamidopropyldiethylamine, behenamidoethyldiethyl-amine,

behenamidoethyldimethylamine, arachidamidopropyldimethylamine, arachidamido-propyidiethylamine, arachidamidoethyidiethylamine,

arachidamidoethyidimethylamine, brassicamidopropyldimethylamine,

lauramidopropyl dimethylamine, myristamidopropyl dimethylamine,

dilinoleamidopropyl dimethylamine, palmitamidopropyl dimethylamine, and mixtures thereof.

In some instances, the cationic surfactant is preferably selected from cetrimonium chloride, stearimonium chloride, behentrimonium chloride,

behentrimonium methosulfate, behenamidopropyltrimonium methosulfate, stearamidopropyltrimonium chloride, arachidtrimonium chloride, distearyldimonium chloride, dicetyldimonium chloride, tricetyl monium chloride, oleamidopropyl dimethylamine, linoleamidopropyl dimethylamine, isostearamidopropyl

dimethylamine, oleyl hydroxyethyl imidazoline, stearamidopropyldimethylamine, behenamidopropyldimethylamine, behenamidopropyldiethylamine,

behenamidoethyldiethyl-amine, behenamidoethyldimethylamine,

arachidamidopropyldimethylamine, arachidamido-propyidiethylamine,

arachidamidoethyidiethylamine, arachidamidoethyidimethylamine, and mixtures thereof.

In some instances, the cationic surfactants are more preferably selected from cetrimonium chloride, behentrimonium chloride, behentrimonium methosulfate, stearamidopropyl dimethylamine, and a mixture thereof.

Moreover, in some cases, the cationic surfactant is most preferably cetrimonium chloride, behentrimonium chloride, or a mixture thereof.

A more exhaustive list of cationic surfactants that may be included in the hair-treatment compositions is provided later, under the heading“Cationic Surfactants.”

The total amount of cationic surfactant(s) in the composition can vary but is typically from about 0.1 to about 5 wt.%, based on the total weight of the

composition. In some cases, the total amount of cationic surfactant(s) is from about 0.1 to about 4 wt.%, about 0.1 to about 3 wt.%, about 0.1 to about 2 wt.%, about 0.5 to about 5 wt.%, about 0.5 to about 4 wt.%, about 0.5 to about 3 wt.%, or about 0.5 to about 2 wt.%, including ranges and sub-ranges therebetween , based on the total weight of the composition.

Non-limiting examples of fatty compounds include fatty esters, fatty alcohols, glyceryl esters (glycerol esters), fatty acids, fatty esters, alkyl ethers of fatty alcohols, fatty acid esters of fatty alcohols, fatty acid esters of alkyl ethers of fatty alcohols, fatty acid esters of alkoxylated fatty alcohols, fatty acid esters of alkyl ethers of alkoxylated fatty alcohols, hydroxy-substituted fatty acids, and mixtures thereof. Non-limiting examples of fatty esters include fatty carbonate esters, glycerol fatty esters, sucrose fatty esters, sorbitan fatty ester, fatty acid esters, or mixtures thereof. Non-limiting examples of the fatty alcohols, fatty acids, fatty alcohol derivatives, and fatty acid derivatives are found in International Cosmetic Ingredient Dictionary, Sixteenth Edition, 201 6, which are incorporated by reference herein in its entirety. A more exhaustive but non-limiting list of useful fatty compounds is provided later, under the heading“fatty compounds.”

The total amount of fatty compounds in the compositions may vary but is typically from about 0.1 to about 20 wt.%, based on the total weight of the composition. The total amount of fatty compounds may be from about 0.1 to about 15 wt.%, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt.%, about 0.1 to about 5 wt.%, about 0.5 to about 20 wt.%, about 0.5 to about 15 wt.%, about 0.5 to about 10 wt.%, about 0.5 to about 8 wt.%, about 0.5 to 5 wt.%, about 1 to about 20 wt.%, about to about 15 wt.%, about 1 to about 1 0 wt.%, about 1 to about 8 wt.%, or about 1 to about 5 wt.%, including ranges and sub-ranges therebetween , based on the total weight of the composition.

In some instances, the compositions of the instant disclosure include one or more fatty esters, i.e., one or more of the fatty compound(s) is a fatty ester. Nonlimiting examples of fatty esters include fatty carbonate esters (in particular dialkyl carbonates), glycerol fatty esters, sucrose fatty esters, sorbitan fatty ester, fatty acid esters, or mixtures thereof. Additional non-limiting examples of fatty esters that may be used include fatty esters such as esters of Ce-22 fatty acids with a monohydric alcohol and/or esters of Ce-22 fatty alcohols with a monocarboxylic acid. More specific non-limiting examples include isopropyl isostearate, n-propyl myristate, isopropyl myristate, hexyl laurate, hexadecyl isostearate, hexydecyl laurate, hexyldecyl octanoate, n-propyl palmitate, isopropyl palmitate, and mixtures thereof.

Preferable fatty esters include fatty carbonate esters (also referred to as“fatty carbonates’’). Fatty carbonates include dialkyl carbonates. Non-limiting examples of dialkyl carbonates include those of the following formula: Ri0(C=0)R2, wherein Ri and R2 are independently linear or branched, saturated or unsaturated alkyl chains having 1 to 30 carbon atoms, or having 2 to 28 carbon atoms, or having 4 to 25 carbon atoms, or having 6 to 22 carbon atoms, for example, C14-15 dialkyl carbonate , dicaprylyl carbonate, diethyl carbonate, dihexyl carbonate, diethylhexyl carbonate, dimethoxyphenyl phenyloxoethyl ethylcarbonate, dimethyl carbonate, dipropyl carbonate, dipropylheptyl carbonate, dioctyl carbonate, and a mixture thereof. In some instances, it is preferable to include one or more dialkyl carbonates, in particular dicaprylyl carbonate.

In some cases, the one or more fatty esters is a glycerol ester of fatty acids or glyceryl esters (or glycerol fatty esters), for example, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl isostearate, glyceryl monooleate, glyceryl dioleate, glyceryl distearate, glyceryl laurate, trilaurin, triarachidin, tribehenin, tricaprin, tricaprylin, caprylic/capric triglyceride, trierucin, triheptanoin, triheptylundecanoin, triisononanoin, triisopalmitin, triisostearin, trilinolein, trimyristin, trioctanoin, triolein, tripalmitin, tripalmitolein, triricinolein, tristearin, triundecanoin, and mixtures thereof.

Additional, non-limiting examples of fatty esters include diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, monoisostearic acid N-alkyl glycol, isocetyl isostearate, trimethylolpropane triisostearate, ethylene glycol dim

ethyl hexanoate, cetyl 2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octanoate, octyldodecyl gum ester, oleyl oleate, octyldodecyl oleate, decyl oleate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, isocetyl stearate, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, isopropyl palm itate, 2-ethylhexyl palm itate, 2-hexyldecyl palm itate, 2-heptylundecyl palm itate, cholesteryl 12-hydroxystearate, dipentaerythritol fatty acid ester, isopropyl myristate, octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, diisostearyl malate, dicaprylyl carbonate, and mixtures thereof.

The total amount of the fatty ester(s) in the composition, if present, may vary but is typically from about 0.1 to about 15 wt.%, based on the total weight of the composition. In some instances, the total amount of fatty ester(s) is from about 0.1 to about 12 wt.%, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt.%, about 0.1 to about 5 wt.%, about 0.5 to about 15 wt.%, about 0.5 to about 1 2 wt.%, about 0.5 to about 10 wt.%, about 0.5 to about 8 wt.%, or about 0.5 to about 5 wt.%, based on the total weight of the composition.

In some instances, the compositions of the instant disclosure include one or more fatty alcohols, i.e., one or more of the fatty compound(s) is a fatty alcohol. The term "fatty alcohol" means an alcohol comprising at least one hydroxyl group (OH), and comprising at least 8 carbon atoms, and which is neither oxyalkylenated (in particular neither oxyethylenated nor oxypropylenated) nor glycerolated. The fatty alcohols can be represented by: R-OH, wherein R denotes a saturated (alkyl) or unsaturated (alkenyl) group, linear or branched, optionally substituted with one or more hydroxyl groups, comprising from 8 to 40 carbon atoms, preferably 10 to 30 carbon atoms, more preferably 1 2 to 24 carbon atoms, and even more preferably 14 to 22 carbon atoms.

In some instances, the compositions include at least one solid fatty alcohol. It is preferable that the solid fatty alcohols are solid at ambient temperature and at atmospheric pressure (25°C, 780 mmHg), and are insoluble in water, that is to say they have a water solubility of less than 1 % by weight, preferably less than 0.5% by weight, at 25°C, 1 atm.

The solid fatty alcohols may be represented by: R-OH, wherein R denotes a linear alkyl group, optionally substituted with one or more hydroxyl groups, comprising from 8 to 40 carbon atoms, preferably 10 to 30 carbon atoms, more preferably 12 to 24 carbon atoms, and even more more preferably 14 to 22 carbon atoms.

In particular, it is possible to mention, alone or as a mixture: lauryl alcohol or lauryl alcohol (1 -dodecanol); myristic or myristyl alcohol (1 -tetradecanol); cetyl alcohol (1 -hexadecanol); stearyl alcohol (1 -octadecanol); arachidyl alcohol (1 -eicosanol); behenyl alcohol (1 -docosanol); lignoceryl alcohol (1 -tetracosanol); ceryl alcohol (1 -hexacosanol); montanyl alcohol (1 -octacosanol); myricylic alcohol (1 -triacontanol).

Preferably, the solid fatty alcohol is chosen from myristyl alcohol, cetyl alcohol, stearyl alcohol, myristyl alcohol, behenyl alcohol and mixtures thereof such as cetylstearyl or cetearyl alcohol.

In an embodiment, the solid fatty alcohol is chosen from myristyl alcohol.

The liquid fatty alcohols, in particular those containing C10-C34, preferably have branched carbon chains and/or have one or more, preferably 1 to 3 double bonds. They are preferably branched and/or unsaturated (C=C double bond), and contain from 12 to 40 carbon atoms.

The liquid fatty alcohols may be represented by: R-OH, wherein R denotes a C12-C24 branched or straight alkyl group or an alkenyl group, R being optionally substituted by one or more hydroxy groups. Preferably, the liquid fatty alcohol is a branched saturated alcohol. Preferably, R does not contain a hydroxyl group. These include oleic alcohol, linoleic alcohol, linolenic alcohol, isocetyl alcohol, isostearyl alcohol, 2-octyl-1 -dodecanol, 2-butyloctanol, 2-hexyl- 1 -decanol, 2-decyl-1 -tetradecanol, 2-tetradecyl-1 -cetanol and mixtures thereof. Preferably, the liquid fatty alcohol is 2-octyl-1 -dodecanol.

In some instances, the compositions include one or more fatty alcohols selected from decyl alcohol, undecyl alcohol, dodecyl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, cetearyl alcohol, isostearyl alcohol, isocetyl alcohol, behenyl alcohol, linalool, oleyl alcohol, myricyl alcohol and a mixture thereof. In some instances, the compositions preferably include myristyl alcohol.

The total amount of the fatty alcohols in the composition, if present, may vary but is typically from about 0.1 to about 15 wt.%, based on the total weight of the composition. In some instances, the total amount of fatty alcohols is from about 0.1 to about 12 wt.%, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt.%, about 0.1 to about 5 wt.%, about 0.5 to about 15 wt.%, about 0.5 to about 1 2 wt.%, about 0.5 to about 10 wt.%, about 0.5 to about 8 wt.%, or about 0.5 to about 5 wt.%, including ranges and sub-ranges therebetween, based on the total weight of the composition.

In some instances, the compositions of the instant disclosure include at least one fatty ester and at least one fatty alcohol.

In some instances, the compositions of the instant disclosure include at least one glycerol fatty ester and at least one fatty alcohol.

In some instances, the compositions of the instant disclosure include at least one fatty ester, at least one glycerol fatty ester, and at least one fatty alcohol.

In some instances, the fatty ester is a fatty carbonate ester (also referred to as “fatty carbonate”). Accordingly, the compositions may include at least one fatty carbonate, in particular at least one dialkyl carbonate, and at least one fatty alcohol. For example, the composition may include at least one dialkyl carbonate selected from C14-15 dialkyl carbonate , dicaprylyl carbonate, diethyl carbonate, dihexyl carbonate, diethylhexyl carbonate, dimethoxyphenyl phenyloxoethyl ethylcarbonate, dimethyl carbonate, dipropyl carbonate, dipropylheptyl carbonate, dioctyl carbonate, and a mixture thereof; and at least one fatty alcohol selected from decyl alcohol, undecyl alcohol, dodecyl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, isocetyl alcohol, behenyl alcohol, linalool, and oleyl alcohol. In some cases, the compositions include a combination of dicaprylyl carbonate and myristyl alcohol.

In some cases, the at least one glycerol fatty ester is selected from glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl isostearate, glyceryl monooleate, glyceryl dioleate, glyceryl distearate, glyceryl laurate, trilaurin, triarachidin, tribehenin, tricaprin, tricaprylin, caprylic/capric triglyceride, trierucin, triheptanoin, triheptylundecanoin, triisononanoin, triisopalmitin, triisostearin, trilinolein, trimyristin, trioctanoin, triolein, tripalmitin, tripalmitolein, triricinolein, tristearin, triundecanoin, and mixtures thereof. In some cases, the compositions include a combination of caprylic/capric triglyceride and myristyl alcohol.

In some cases, the compositions include a combination of dicaprylyl carbonate, caprylic/capric triglyceride and myristyl alcohol.

One or more thickening agents can optionally be included in the compositions of the instant disclosure. Thickening agents may be referred to as“thickeners” or “viscosity modifying agents.” Thickening agents are typically included to increase the viscosity of the compositions. Nonetheless, in some instances, certain thickening agents provide additional, surprising benefits to the compositions. Non limiting examples of thickening agents include polyacrylate crosspolymers or

crosslinked polyacrylate polymers, cationic acrylate copolymers, anionic acrylic or carboxylic acid polymers, polyacrylamide polymers, polysaccharides such as cellulose derivatives, gums, polyquaterniums, vinylpyrrolidone

homopolymers/copolymers, C8-24 hydroxyl substituted aliphatic acid, C8-24 conjugated aliphatic acid, sugar fatty esters, polyglyceryl esters, and a mixture thereof. Particular types of thickening agents that may be mentioned include the following:

a. Carboxylic acid or carboxylate based homopolymer or co-polymer, which can be linear or crosslinked: These polymers contain one or more monomers derived from acrylic acid, substituted acrylic acids, and salts and esters of these acrylic acids (acrylates) and the substituted acrylic acids. Commercially available polymers include those sold under the trade names CARBOPOL, ACRYSOL, POLYGEL, SOKALAN, CARBOPOL ULTREZ, and POLYGEL. Examples of commercially available carboxylic acid polymers include the carbomers, which are homopolymers of acrylic acid crosslinked with allyl ethers of sucrose or

pentaerytritol. The carbomers are available as the CARBOPOL 900 series from B.F. Goodrich (e.g., CARBOPOL 954). In addition, other suitable carboxylic acid polymeric agents include ULTREZ 10 (B.F. Goodrich) and copolymers of C10-30 alkyl acrylates with one or more monomers of acrylic acid, methacrylic acid, or one of their short chain (i.e., C1 -4 alcohol) esters, wherein the crosslinking agent is an allyl ether of sucrose or pentaerytritol. These copolymers are known as acrylates/C10-C30 alkyl acrylate crosspolymers and are commercially available as CARBOPOL 1342, CARBOPOL 1382, PEMULEN TR-1 , and PEMULEN TR-2, from B.F.

Goodrich.

Other suitable carboxylic acid or carboxylate polymeric agents include copolymers of acrylic acid and alkyl C5-C10 acrylate, copolymers of acrylic acid and maleic anhydride, and polyacrylate crosspolymer-6. Polyacrylate Crosspolymer-6 is aviable in the raw material known as SEPIMAX ZEN from Seppic.

Another suitable carboxylic acid or carboxylate polymeric agent includes acrylamidopropyltrimonium chloride/acrylates copolymer, a cationic acrylates copolymer (or a quaternary ammonium compound), available as a raw maerial known under the tradename of SIMULQUAT HC 305 from Seppic.

In certain embodiments, the carboxylic acid or carboxylate polymer thickeners useful herein are those selected from carbomers, acrylates/C10-C30 alkyl acrylate crosspolymers, polyacrylate crosspolymer-6, acrylamidopropyltrimonium

chloride/acrylates copolymer, and mixtures thereof.

b. Polyquaternium Compounds: Non-limiting examples, include polyquaternium-1 , polyquaternium-2, polyquaternium-3, polyquaternium-4, polyquaternium-5, polyquaternium-6, polyquaternium-7, polyquaternium-8, polyquaternium-9, polyquaternium-10, polyquaternium-1 1 , polyquaternium-12, polyquaternium-13, polyquaternium-14, polyquaternium-15, polyquaternium-16, polyquaternium-17, polyquaternium-18, polyquaternium-19, polyquaternium-20, polyquaternium-21 , polyquaternium-22, polyquaternium-23, polyquaternium-24, polyquaternium-25, polyquaternium-26, polyquaternium-27, polyquaternium-28, polyquaternium-29, polyquaternium-30, polyquaternium-40, polyquaternium-41 , polyquaternium-42, polyquaternium-43, polyquaternium-44, polyquaternium-45, polyquaternium-46, polyquaternium-47, polyquaternium-48, polyquaternium-49, polyquaternium-50, polyquaternium-51 , polyquaternium-52, polyquaternium-53, polyquaternium-54, polyquaternium-55, polyquaternium-56, polyquaternium-57, polyquaternium-58, polyquaternium-59, polyquaternium-60, polyquaternium-61 , polyquaternium-62, polyquaternium-63, polyquaternium-64, polyquaternium-65, polyquaternium-66, polyquaternium-67, etc. In some cases, preferred

polyquaternium compounds include polyquaternium-10, polyquaternium-1 1 , polyquaternium-67, and a mixture thereof.

c. Celluloses: Non-limiting examples of celluloses include cellulose, carboxymethyl hydroxyethylcellulose, cellulose acetate propionate carboxylate, hydroxyethylcellulose, hydroxyethyl ethylcellulose, hydroxypropylcellulose, hydroxypropyl methylcellulose, methyl hydroxyethylcellulose, microcrystalline cellulose, sodium cellulose sulfate, and mixtures thereof. In some instances, the cellulose is selected from water soluble cellulose derivatives (for example, carboxymethyl cellulose, methyl cellulose, methylhydroxypropyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, cellulose sulfate sodium salt).

Furthermore, in some instance, the cellulose is preferably hydroxypropylcellulose (HPC).

d. Polyvinylpyrrolidone (PVP) and co-polymers: Non-limiting examples include Polyvinylpyrrolidone(PVP), Polyvinylpyrrolidone(PVP)/vinyl acetate copolymer (PVP/VA copolymer), polyvinylpyrrolidone (PVP)/eicosene copolymer, PVP/hexadecene copolymer, etc. Commercially available polyvinylpyrrolidone includes LUVISKOL K30, K85, K90 available from BASF. Commerically available copolymers of vinylpyrrolidone and vinylacetate include LUVISKOL VA37, VA64 available from BASF; copolymers of vinylpyrrolidone, methacrylamide, and vinylimidazole (INCI: VP/Methacrylamide/Vinyl Imidazole Copolymer) is

commercially available as LUVISET from BASF. In some instances, PVP and PVP/VA copolymer are preferred.

e. Sucrose esters: Non-limiting examples include sucrose palmitate, sucrose cocoate, sucrose monooctanoate, sucrose monodecanoate, sucrose mono-or dilaurate, sucrose monomyristate, sucrose mono- or dipalmitate, sucrose mono-and distearate, sucrose mono-, di- or trioleate, sucrose mono- or dilinoleate, sucrose pentaoleate, sucrose hexaoleate, sucrose heptaoleate or sucrose octooleate, and mixed esters, such as sucrose palmitate/stearate, and mixtures thereof.

f. Polyglyceryl esters: Non-limiting polyglycerol esters of fatty acids (polygylceryl esters) include those of the following formula:

OR2

R1-(0CH2-CH-CH20)n-R3

wherein n is from 2 to 20 or from 2 to 10 or from 2 to 5, or is 2, 3, 4, 5, 6, 7, 8, 9, or 10, and Ft1, R2 and R3 each may independently be a fatty acid moiety or hydrogen, provided that at least one of R1, R2, and R3 is a fatty acid moiety. For instance, R1 , R2 and R3 may be saturated or unsaturated, straight or branched, and have a length of C1-C40, Ci-C30, C1-C25, or C1-C20, CrCi6, Or CrCi0. Additionally, non-limiting examples of nonionic polyglycerol esters of fatty acids include polyglyceryl-4 caprylate/caprate, polyglyceryl- 10 caprylate/caprate, polyglyceryl-4 caprate, polyglyceryl-10 caprate, polyglyceryl-4 laurate, polyglyceryl-5

laurate, polyglyceryl-6 laurate, polyglyceryl-10 laurate, polyglyceryl- 10 cocoate, polyglyceryl-10 myristate, polyglyceryl-10 oleate, polyglyceryl-10 stearate, and mixtures thereof.

g. C8-24 hydroxyl substituted aliphatic acid and C8-24 conjugated aliphatic acid: Non-limiting examples include conjugated linoleic acid, cis-parinaric acid, trans-7-octadecenoic acid, cis-5,8,1 1 ,14,17-eicosapentanoic acid, cis-4,7,10,13, 16,19-docosahexenoic acid, columbinic acid, linolenelaidic acid, ricinolaidic acid, stearidonic acid, 2-hydroxystearic acid, alpha-linolenic acid, arachidonic acid, cis-1 1 ,14-eicosadienoic acid, linolelaidic acid, monopetroselinic acid, petroselinic acid, ricinoleic acid, trans-vaccenic acid, cis-1 1 ,14, 17-eicosatrienoic acid, cis-5-eicosenoic acid, cis-8,1 1 ,14-eicosatrienoic acid, hexadecatrienoic acid, palmitoleic acid, petroselaidic acid, trans trans farnesol, cis-13,16-docosadienoic acid, cis-vaccenic acid, cis-1 1 -eicosenoic acid, cis-13,16,19-docosatrienoic acid, cis-13-octadecenoic acid, cis-15-octadecanoic acid, cis-7,10,13,16 docosatetraenoic acid, elaidic acid, gamma-linolenic acid, geranic acid, geranyl geranoic acid, linoleic acid, oleic acid, pinolenic acid, trans- 13-octadecenoic acid. More preferably, the aliphatic acid comprises 12-hydroxystearic acid, conjugated linoleic acid, or a mixture thereof.

h. Gums: Non-limiting examples of gums include gum arabic, tragacanth gum, karaya gum, guar gum, gellan gum, tara gum, locust bean gum, tamarind gum, xanthan gum, locust bean gum, Seneca gum, sclerotium gum, gellan gum, etc.

The total amount of thickening agents can vary but is typically from about 0.01 to about 20 wt.%, based on the total weight of the composition. In some instances, the total amount of thickening agents is about 0.01 to about 15 wt.%, about 0.01 to about 10 wt.%, about 0.01 to about 0.01 to about 8 wt.%, about 0.01 to about 6 wt.%, about 0.01 to about 5 wt.%, about 0.1 to about 20 wt.%, about 0.1 to about 15 wt.%, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt.%, about 0.1 to about 6 wt.%, or about 0.1 to about 5 wt.%, including ranges and sub-ranges therebetween, based on the total weight of the composition.

In some instances, the compositions include one or more polyacrylate crosspolymers, for example, polyacrylate crosspolymer-6. The total amount of the polyacrylate crosspolymer(s) can vary but may be from about 0.01 to about 10 wt.%, based on the total weight of the compositions. In some instances, the total amount of polyacrylate crosspolymers is from about 0.01 to about 8 wt.%, about 0.01 to about 5 wt.%, about 0.01 to about 3 wt.%, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt.%, about 0.1 to about 6 wt.%, about 0.1 to about 5 wt.%, or about 0.1 to about 3 wt.%, including ranges and sub-ranges therebetween, based on the total weight of the composition.

In some instances, the compositions include one or more carbomers, which are polymeric materials composed of acrylic acid monomers. The total amount of carbomers may vary but may be from about 0.01 to about 10 wt.%, based on the total weight of the compositions. In some instances, the total amount of carbomers is from about 0.01 to about 8 wt.%, about 0.01 to about 5 wt.%, about 0.01 to about 3 wt.%, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt.%, about 0.1 to about 6 wt.%, about 0.1 to about 5 wt.%, or about 0.1 to about 3 wt.%, including ranges and sub-ranges therebetween, based on the total weight of the composition.

In some instances, the compositions include acrylamidopropyltrimonium chloride/acrylates copolymer, which is a copolymer of one or more of the monomers formed from the amide of acrylic acid, methacrylic acid and aminopropyltrimethyl-ammonium chloride and one or more monomers of acrylic acid, methacrylic acid or one of their esters. The total amount of acrylamidopropyltrimonium chloride/acrylates copolymer may vary but may be from about 0.01 to about 10 wt.%, based on the total weight of the compositions. In some instances, the total amount of

acrylamidopropyltrimonium chloride/acrylates copolymer is from about 0.01 to about 8 wt.%, about 0.01 to about 5 wt.%, about 0.01 to about 3 wt.%, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt.%, about 0.1 to about 6 wt.%, about 0.1 to about 5 wt.%, or about 0.1 to about 3 wt.%, including ranges and sub-ranges therebetween, based on the total weight of the composition.

In some instances, the compositions include one or more polyquaternium compounds. Non-limiting examples include polyquaternium-10, polyquaternium-1 1 , and polyquaternium-67. The total amount of polyquaternium compounds may vary but may be from about 0.01 to about 10 wt.%, based on the total weight of the compositions. In some instances, the total amount of polyquaternium compounds is from about 0.01 to about 8 wt.%, about 0.01 to about 5 wt.%, about 0.01 to about 3 wt.%, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt.%, about 0.1 to about 6 wt.%, about 0.1 to about 5 wt.%, or about 0.1 to about 3 wt.%, including ranges and sub-ranges therebetween, based on the total weight of the composition.

In some instances, the compositions include one or more cellulose thickeners (e.g., microcrystalline cellulose, carboxymethylcellulose, hydroxymethylcellulose, and hydroxypropylcellulose). The total amount of cellulose thickeners can vary but may be from about 0.01 to about 10 wt.%, based on the total weight of the compositions. In some instances, the total amount of cellulose thickeners is from about 0.01 to about 8 wt.%, about 0.01 to about 5 wt.%, about 0.01 to about 3 wt.%, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt.%, about 0.1 to about 6 wt.%, about 0.1 to about 5 wt.%, or about 0.1 to about 3 wt.%, including ranges and sub ranges therebetween, based on the total weight of the composition.

CLAIMS

1 . A transparent and substantially anhydrous cosmetic composition comprising:

about 20 to about 95 wt.% of propylene glycol;

about 5 to about 70 wt.% of one or more monoalcohols having from 2 to 6 carbon atoms;

wherein the weight ratio of the propylene glycol to the

rmonoalcohol(s) (propylene glycol : monoalcohol(s)) is from 20:1 to 1 :1 ; about 0.1 to about 5 wt.% of one or more cationic surfactants; about 0.1 to about 20 wt.% of one or more fatty compounds;

wherein the composition is a solubilized, non-emulsified composition until applied to the wet or damp hair, whereupon the composition forms a lamellar phase in situ; and

all percentages by weight are based on the total weight of the composition.

2. The composition of claim 1 , further comprising:

about 0.1 to about 50 wt.% of one or more glycols selected from ethylene glycol, butylene glycol, hexylene glycol, pentylene glycol, diethylene glycol, dipropylene glycol, 1 ,3 propanediol, and glycerin.

3. The composition of claim 1 or claim 2, wherein the composition further

comprises:

about 0.1 to about 20 wt.% of one or more thickening agents.

4. The composition of claim 3, wherein the one or more thickening agents are selected from polyacrylate crosspolymers or crosslinked polyacrylate polymers, cationic acrylate copolymers, anionic acrylic or carboxylic acid polymers, polyacrylamide polymers, polysaccharides, gums, polyquaterniums,

vinylpyrrolidone homopolymers/copolymers, C8-24 hydroxyl substituted aliphatic acid, C8-24 conjugated aliphatic acid, sugar fatty esters, polyglyceryl esters, and a mixture thereof.

5. The composition of any one of the above claims, wherein the one or more

cationic surfactants are selected from cetrimonium chloride, stearimonium chloride, behentrimonium chloride, behentrimonium methosulfate,

behenamidopropyltrimonium methosulfate, stearamidopropyltrimonium chloride, arachidtrimonium chloride, distearyldimonium chloride, dicetyldimonium chloride, tricetylmonium chloride, oleamidopropyl dimethylamine, linoleamidopropyl dimethylamine, isostearamidopropyl dimethylamine, oleyl hydroxyethyl imidazoline, stearamidopropyldimethylamine, behenamidopropyldimethylamine, behenamidopropyldiethylamine, behenamidoethyldiethyl-amine,

behenamidoethyldimethylamine, arachidamidopropyldimethylamine,

arachidamido-propyidiethylamine, arachidamidoethyidiethylamine,

arachidamidoethyidimethylamine, and mixtures thereof.

6. The composition of any one of the above claims comprising from about 0.1 to 20 wt.% of the one or more fatty compounds.

7. The composition of any one of the above claims, wherein the one or more fatty compounds comprises one or more fatty esters and/or one or more fatty alcohols and/or one or more glycerol fatty esters (glyceryl esters).

8. The composition of claim 7 comprising one or more fatty esters selected from fatty carbonate esters, glycerol fatty esters, sucrose fatty esters, sorbitan fatty ester, fatty acid esters, or mixtures thereof.

9. The composition of claim 8 comprising one or more fatty carbonate esters

selected from dialkyl carbonates of formula: Ri0(C=0)R2, wherein Ri and R2 are independently linear or branched, saturated or unsaturated alkyl chains having 1 to 30 carbon atoms, or having 2 to 28 carbon atoms, or having 4 to 25 carbon

atoms, or having 6 to 22 carbon atoms, preferably one or more fatty carbonates selected from C14-15 dialkyl carbonate, dicaprylyl carbonate, diethyl carbonate, dihexyl carbonate, diethylhexyl carbonate, dimethoxyphenyl phenyloxoethyl ethylcarbonate, dimethyl carbonate, dipropyl carbonate, dipropylheptyl carbonate, dioctyl carbonate, and a mixture thereof.

10. The composition of claim 7 comprising one or more fatty alcohols selected from cetearyl alcohol, stearyl alcohol, behenyl alcohol, cetyl alcohol, myristyl alcohol, isostearyl alcohol, lauryl alcohol, and a mixture thereof.

1 1 . The composition of claim 7, comprising one or more glycerol fatty esters selected from caprylic/capric trigylcerides, glyceryl oleate, glyceryl stearate, glyceryl isostearate, glyceryl laurate, and a mixture thereof.

12. The composition of any one of the above claims, wherein the composition has a viscosity of about 10 mPa.s to about 10,000 mPa.s at 25°C, prior to application to the wet or damp hair.

13. The composition of any one of the above claims, wherein the composition is essentially free of silicones.

14. A transparent and substantially anhydrous cosmetic composition comprising:

about 20 to about 95 wt.% of propylene glycol;

about 5 to about 70 wt.% of ethanol;

wherein the weight ratio of the propylene glycol to ethanol

(propylene glycol : ethanol) is from 20:1 to 1 :1 ;

about 0.1 to about 5 wt.% one or more cationic surfactants; about 0.1 to about 10 wt.% of one or more fatty esters selected from fatty carbonate esters, glycerol fatty esters, sucrose fatty esters, sorbitan fatty ester, fatty acid esters, or mixtures thereof;

about 0.1 to about 10 wt.% of one or more fatty alcohols selected from cetearyl alcohol, stearyl alcohol, behenyl alcohol, cetyl

alcohol, myristyl alcohol, isostearyl alcohol, lauryl alcohol, and a mixture thereof;

wherein the composition is a solubilized, non-emulsified

composition until applied to the wet or damp hair, whereupon the composition forms a lamellar phase in situ; and

all percentages by weight are based on the total weight of the composition.

15. The composition of claim 14, further comprising:

about 0.1 to about 50 wt.% of one or more glycols selected from ethylene glycol, butylene glycol, hexylene glycol, pentylene glycol, 1 ,3-propanediol, diethylene glycol, dipropylene glycol, caprylyl glycol, glycerin, and a mixture thereof; and

optionally, about 0.1 to about 20 wt.% of one or more thickening agents.

16. The cosmetic composition of claim 14 comprising:

about 50 to about 95 wt.% of propylene glycol;

about 5 to about 50 wt.% of ethanol;

about 0.1 to about 5 wt.% one or more cationic surfactants selected from cetrimonium chloride, behentrimonium chloride, behentrimonium methosulfate, stearamidopropyl dimethylamine, and a mixture thereof; about 0.1 to about 10 wt.% of one or more fatty carbonate esters selected from dialkyl carbonates of formula: Ri0(C=0)R2, wherein Ri and R2 are independently linear or branched, saturated or unsaturated alkyl chains having 6 to 22 carbon atoms; and

about 0.1 to about 10 wt.% of one or more fatty alcohols selected from cetearyl alcohol, stearyl alcohol, behenyl alcohol, cetyl

alcohol, myristyl alcohol, isostearyl alcohol, and a mixture thereof,

wherein the composition has a viscosity of about 10 mPa.s to about 5,000 mPa.s at 25°C, prior to application to the wet or damp hair.

17. A method for treating hair comprising applying a transparent and substantially anhydrous cosmetic composition to wet or damp hair and forming a lamellar phase in situ, the transparent and substantially anhydrous cosmetic composition comprising:

about 20 to about 95 wt.% of propylene glycol;

about 5 to about 70 wt.% of one or more monoalcohols having from 2 to 6 carbon atoms;

wherein the weight ratio of the propylene glycol to the

monoalcohol(s) (propylene glycol : monoalcohol(s)) is from 20:1 to 1 :1 ; about 0.1 to about 5 wt.% of one or more cationic surfactants; about 0.1 to about 20 wt.% of one or more fatty compounds;

wherein the composition is a solubilized, non-emulsified

composition until applied to the wet or damp hair, whereupon the composition forms a lamellar phase in situ; and

all percentages by weight are based on the total weight of the composition.

18. The method of claim 17, wherein the composition is applied to the wet or damp hair by spraying.

19. The method of claim 17 or claim 18, further comprising cleansing the hair after application of the composition to the wet or damp hair, prior to styling the hair.

20. A method of claim 17, wherein treating the hair comprises:

conditioning the hair;

providing curl definition to the hair;

providing frizz control to the hair;

improving ease of combability and detangling; protecting the hair from damage;

increasing the appearance of hair volume; and imparting or improving shine on hair.