Package for dispensing a two-phase cosmetic composition

Abstract

A rinse-off hair treatment product having a multi-chamber tube package capable of housing a dual-phase rinse-off hair treatment composition capable of providing a warming sensation and hair conditioning. The multi-chamber tube package may be a tube-in-tube package having an outer tube with an outer chamber housing a conditioning composition and an inner tube with an inner chamber housing a warming composition. The inner chamber is fluidly connected to one or more central orifices by an inner nozzle channel, and the outer channel is fluidly connected to one or more outer orifices by an outer channel. The ratio of the area of ​​the central orifice to the outer orifice may be greater than 1. These ratios may help to dispense the product as a single stream with two visible phases, which has been found to encourage consumers to intuitively mix the composition, thereby activating the warming sensation.

Description

[Technical Field]

[0001] The present invention relates to a package for a two-phase cosmetic composition, particularly a two-phase rinse-off hair treatment composition that provides warming and hair conditioning. [Background technology]

[0002] A variety of hair treatment products, including leave-on treatments and rinse-off treatments, are available to consumers. Generally, hair treatments are used to improve the feel, appearance, and manageability of hair. Some consumers may desire a hair treatment that not only provides excellent hair conditioning, but also provides a pleasant user experience, such as a warming sensation, when rubbed in the user's hands and / or applied to the user's hair and / or scalp.

[0003] One way to provide both excellent conditioning and warmth is to use a two-phase rinse-off hair treatment composition. However, storing and dispensing two-phase compositions can be difficult. First, two-phase compositions often need to be stored separately, for example, in a multi-chamber package, to prevent the active ingredients in each composition from interacting with each other. Second, consumers generally prefer that the compositions be dispensed evenly so that both compositions are used up at approximately the same time, leaving little residue in the package. This can be difficult because the formulations and viscosities of each composition can vary, resulting in different dispensing rates. Third, whether the dispensed product has an aesthetic appearance in the user's hand can be important to the user experience. Summary of the Invention [Problem to be solved by the invention]

[0004] Therefore, there is a need for a package for a two-phase hair treatment composition that separates the phases during storage and uniformly distributes the composition with an aesthetic appearance. [Means for solving the problem]

[0005] (a) a warming composition; and a tube package comprising: (i) an inner tube comprising an inner tube wall and an inner chamber; (ii) an outer tube comprising an outer tube wall and an outer chamber formed between the outer tube wall and the inner tube wall; (iii) one or more outer orifices fluidly connected to the outer chamber by one or more outer nozzle channels; and (iv) one or more central orifices fluidly connected to the inner chamber by one or more inner nozzle channels, wherein the ratio of the area of ​​the one or more central orifices to the one or more outer orifices is from about 2 to about 6, preferably from about 2.5 to about 5.5, more preferably from about 3 to about 5, and even more preferably from about 3.5 to about 4.5; and (b) a two-phase hair treatment composition comprising: (i) a warming composition having a viscosity; and (ii) a conditioning composition having a viscosity. wherein the viscosity of the warming composition is higher than the viscosity of the conditioning composition, the inner chamber contains the warming composition, the outer chamber contains the conditioning composition, and the warming composition and the conditioning composition are physically separated within the tube package. [Brief explanation of the drawings]

[0006] This patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.

[0007] While the specification concludes with claims particularly pointing out and distinctly claiming the subject matter of the invention, it is believed the present invention can be more readily understood from the following description taken in conjunction with the accompanying drawings. [Figure 1A]FIG. 1 is a perspective view of a tube package for dispensing a hair treatment composition. [Figure 1B] FIG. 1 is a perspective view of a tube package for dispensing a hair treatment composition, including a cap. [Figure 1C] 1C is a cross-sectional view of the tube package including the cap of FIG. 1B along the Y axis. [Figure 2] 1 is a table showing the orifice designs and dispensed compositions for Examples 1-4. [Figure 3] 1 is a table showing the orifice designs and dispensed compositions for Examples 5-8. [Figure 4A] 1 is a table showing the orifice designs and dispensed compositions for Examples 9-11. [Figure 4B] 1 is a table showing the orifice designs and dispensed compositions for Examples 12-14. DETAILED DESCRIPTION OF THE INVENTION

[0008] To keep the compositions separate before dispensing, dual- or multi-chamber packages are commonly used. One example of a dual-chamber package is one in which one tube is inserted into another, with the nozzle at the top of the inner tube inserted into the nozzle channel of the outer tube. The ends of the two tubes in this "tube-in-tube package" can be joined by a snap-fit ​​plug seal. The two tubes define an inner and outer chamber, which connect to a shared top or discharge area. In another example, a separating wall separates a tube in the form of flexible tubing into two adjacent ("side-by-side") chambers. As with tube-in-tube packages, the nozzle channels in this design do not merge until they reach the orifice area at the end of the tube neck. In both tube-in-tube and side-by-side packages, the composition is expelled from the package as soon as pressure is applied to the package.

[0009] For compositions that must be stored separately, such as two-phase hair treatment compositions that can provide warming and conditioning, current multi-chamber packages do not dispense the product in a way that is acceptable to consumers. Because each hair treatment composition has a unique formulation and viscosity, current two-phase packaging does not dispense the product evenly, resulting in the product not providing the appropriate appearance, warming, and / or conditioning performance, and there may be excess composition wasted in the package after one composition is used up, resulting in a poor user experience. Furthermore, it has been found that if both compositions are visible on the dispensed strands, not only is it more aesthetically pleasing and visually pleasing to the user, but the user will also intuitively mix the products together, thereby providing an immediate warming sensation and an improved user experience.

[0010] 1A, 1B, and 1C show a tube package 1 formed in a "tube-in-tube" manner for storing two hair treatment compositions. The tube package 1 can store two hair treatment compositions in a shared package of separate chambers. Mixing or merging of the two compositions does not occur until the product is used. The two-chamber tube package can include an outer tube 3 and an inner tube 4. The outer tube 3 has an outer chamber 31 formed between an outer tube wall 34 and an inner tube wall 44. The outer chamber 31 can be adapted to store and dispense a conditioner composition 36. The outer chamber 31 coaxially surrounds a pipe-like inner tube 4 having an inner tube wall 44 forming an inner chamber 41 adapted to store and dispense a warming composition 46.

[0011] The two chambers 31 and 41 have different volumes that may be in a certain predetermined ratio relative to one another. To have the best product performance with the least amount of wasted product, it has been determined that when full (e.g., at the time of purchase, which may optionally include headspace in the inner or outer chambers), the conditioning composition 36 in the outer tube 4 may contain a greater weight of product than the warming composition in the inner tube; thus, the weight ratio of conditioning composition to warming composition may be greater than 1, alternatively from greater than 1 to about 5, alternatively from about 1.1 to about 4, alternatively from about 1.2 to about 2.5, alternatively from about 1.25 to about 2.25, alternatively from about 1.3 to about 2, alternatively from about 1.35 to about 1.9, alternatively from about 1.4 to about 1.8, alternatively from about 1.5 to about 1.75.

[0012] The weight ratio of the composition dispensed in the outer tube to the weight of the composition dispensed in the inner tube can be greater than 1, alternatively from 1 to about 3, alternatively from about 1.1 to about 2, alternatively from about 1.2 to about 1.75, alternatively from about 1.3 to about 1.5, alternatively about 1.4.

[0013] The nozzle 5 has external threads 51 adapted to mate with the internal threads 21 on the cap 2 so that the nozzle 5 and cap 2 can be screwed together.

[0014] The nozzle 5 may include at least a central orifice 54 in fluid communication with the inner nozzle channel 43 and the inner chamber 41, and an outer orifice 53 in fluid communication with one or more outer nozzle channels 33 and the outer chamber 31. The central orifice 54 and the one or more outer orifices 53 may be any shape. In some examples, the central orifice 54 may be circular or elliptical, and the one or more outer orifices may be straight slots, curved slots, semicircular, arc-triangle, or combinations thereof. In some examples, the central orifice may be a single orifice, and in other examples, the central orifice may have more than one orifice. In some examples, the outer orifice may be a single orifice, or the outer orifice may be two or three orifices, or the outer orifice may be two or more orifices.

[0015] The area of ​​the central orifice may be greater than the area of ​​two or more of the outer orifices. The ratio of the area of ​​the central orifice to the outer orifices may be 1:1 or greater, alternatively from about 1 to about 10, alternatively from about 1.3 to about 7, alternatively from about 2 to about 6, alternatively from about 2.5 to about 5.5, alternatively from about 3 to about 5, alternatively from about 3.5 to about 4.5, alternatively about 4.

[0016] The central orifice may include one or more orifices. In some instances, the central orifice includes only one orifice. The central orifice is about 2 mm 2 ~approx. 9mm 2 , or about 3 mm 2 ~about 7mm 2 , or about 4 mm 2 ~about 6mm 2 , or about 4.5 mm 2 ~about 5.5mm 2 may have an area of

[0017] The outer orifice may include one or more orifices. In some examples, the outer orifice includes only one orifice. The outer orifice is about 0.25 mm. 2 ~about 5mm 2, or about 0.5 mm 2 ~about 3.5mm 2 , or about 0.75 mm 2 ~about 2.5mm 2 , or about 1 mm 2 ~about 1.5mm 2 may have an area of

[0018] One or more outer nozzle channels 33 may be different from the inner nozzle channel 43, so that when pressure is applied to the package, particularly to the outer tube wall 34, the conditioner composition 36 and the warming composition 46 may initially be delivered separately until the conditioner composition 36 exits the outer orifice 53 and the warming composition 46 exits the central orifice 54, resulting in a shared strand on the user's palm and / or cleansing implement. In this example, the outer tube 3 and the inner tube 4 may be made from a flexible material, such as a recyclable laminate film material made from an aluminum barrier and / or polymer, and both the outer tube 3 and the inner tube 4 may be sealed at the rear ends opposite the nozzle by any suitable means, such as heat-sealed or crimped joints. In some examples, the inner tube and the outer tube may be made from the same laminate material. In other examples, the inner tube and the outer tube may be made from different materials. It has been found that consumers not only prefer packaging made from a relatively soft material that makes it easier to squeeze the package and dispense the hair treatment composition, but also that makes the warming sensation of the composition more noticeable. In another example, the outer tube wall may be a laminated structure that may include a barrier such as aluminum, ethylene vinyl alcohol, or a combination thereof. The outer tube wall and the inner tube wall may be made from the same material and have the same thickness and structure. Alternatively, the outer tube wall and the inner tube wall may have different thicknesses, different materials, and / or different structures. In another example, the outer tube wall and the inner tube wall are substantially free of, or free of, high-density polyethylene. The tube package may be recyclable.

[0019] The outer tube 3 may have a body with a stiffness of about 3.0 N to about 9.5 N, alternatively about 3.0 N to about 5.5 N, alternatively about 3.2 N to about 4.0 N, and a wall thickness of about 300 μm to about 600 μm, about 300 μm to about 500 μm, and about 300 μm to about 400 μm. The inner tube 4 may have a body with a stiffness of about 2.9 N to about 9.5 N, alternatively about 3.0 N to about 6.0 N, alternatively about 4.0 N to about 5.0 N, and a wall thickness of about 200 μm to about 600 μm, about 300 μm to about 500 μm, or about 400 μm to about 500 μm.

[0020] The two-phase composition can warm up immediately upon mixing, and the composition can be rapidly absorbed and penetrated into the hair core, providing excellent overall conditioning. The two-phase composition can repair damaged hair, leaving it feeling healthy and strong from the core. In addition, the two-phase conditioner can improve hair texture, make hair look shiny and healthy, improve hair volume and / or body, prevent hair breakage, keep hair smooth and soft compared to traditional single-phase hair conditioners, nourish and / or heal hair from the inside and / or core, and improve hair quality with each use. The two-phase composition can heal hair from the core, making hair bouncy and strong from the core.

[0021] The tube package may be packaged in a secondary package. In some examples, the secondary carton may be a pulp-based carton. The secondary package may contain any suitable number of tube packages. In one example, the secondary package may contain a single tube package, or 2-3 tubes, or 2-5 tubes, or 3-7 tubes, or 3-10 tubes, or 4-12 tubes. In one example, the secondary package may contain multiple tubes, e.g., 7 tubes, allowing the user to achieve improved results with successive use. For example, using one tube may help smooth hair, using three tubes may improve shine, and using seven tubes may improve hair strength.

[0022] In some examples, the outer tube may contain a warming composition and the inner tube may contain a conditioning composition, and the weight ratios, distribution ratios, and orifice ratios described above may remain the same or may be reversed.

[0023] All percentages, parts and ratios are based on the total weight of the compositions of the present invention unless otherwise specified. All such weights pertaining to listed ingredients are based on the active level and, therefore, do not include carriers or by-products that may be included in commercially available materials.

[0024] The terms "molecular weight" or "M.Wt." as used herein, unless otherwise specified, refer to weight average molecular weight. Weight average molecular weight can be measured by gel permeation chromatography.

[0025] The cosmetic composition of the present invention may comprise a first composition and a second composition, which are maintained separate from each other until dispensed. The cosmetic composition may be a rinse-off hair treatment composition. The first composition may be a warming composition and may contain an inorganic heat-generating agent, and the second composition may be a conditioning composition and may contain a cationic surfactant system including a monoalkyl quaternized ammonium salt cationic surfactant, a high-melting point fatty compound, and an aqueous carrier.

[0026] The warming composition may have a viscosity greater than that of the conditioning composition. For example, the viscosity of the warming composition may be at least 1.25 times greater, alternatively 1.3 times greater, alternatively 1.4 times greater, alternatively 1.5 times greater, or alternatively 2 times greater than that of the conditioning composition. The warming composition may have a viscosity greater than 950 s. -1 The conditioning composition may have a viscosity of about 600 to about 1200 Pa at 950 s. -1 The viscosity may range from about 190 to about 420 Pa at 2 s. The viscosity may be measured using a Brookfield RS rheometer with a cone-plate type C75-1 cone. -1 The measurement can be performed on a 2.5 mL sample of the composition at a constant shear rate of 0.15 mm at 27° C. for 3 minutes.

[0027] The first and second compositions may be different colors, which can provide a beautiful aesthetic appearance to the dispensed product stream and can also encourage the user to intuitively mix the compositions, thereby activating the warming sensation. The first and second compositions are kept separate until dispensed, but come into contact when dispensed into the palm of the user's hand.

[0028] First Composition (Warming Composition) One phase of the treatment composition may contain a warming composition containing an inorganic heat-generating agent that generates heat upon mixing with water. The carrier of the first composition may be anhydrous, since the heating reaction does not begin until mixed with water.

[0029] As used herein, "anhydrous" means that the composition contains 5% or less, alternatively 3% or less, alternatively 1% or less water, or is substantially free of water, or is free of water. Anhydrous compositions can be heated to a temperature of about 25°C to about 80°C, alternatively about 30°C to about 60°C, or alternatively about 35°C to about 45°C. This temperature can be adjusted, for example, by selecting the heat generating agent, the amount of heat generating agent, and additional agents capable of controlling the exothermic reaction.

[0030] Inorganic heat generating agents that can be used, such as calcium sulfate, generally have a heat generating capacity of about -19.2 kJ mol -1Inorganic heat generating agents useful herein include, for example, chlorides such as calcium chloride (CaCl, CaCl.H0, CaCl.2H0), magnesium chloride (MgCl, MgCl.2H0, MgCl.4H0), aluminum chloride (AlCl, AlCl.6H0), ferric chloride (FeCl, FeCl.2H0), and zinc chloride (ZnCl); magnesium sulfate (MgSO, MgSO.H0, MgSO.4H0), zinc sulfate (ZnSO.H0), ferrous sulfate (FeSO, FeSO.H0), and calcium sulfate (CaSO, Examples of suitable inorganic salts include sulfates such as CaSO4.1 / 2H2O and CaSO4.H2O; dry alum; calcium oxide (CaO); magnesium oxide (MgO); carbonates such as potassium carbonate (K2CO3) and sodium carbonate (Na2CO3); bromides such as magnesium bromide (MgBr2), calcium bromide (CaBr2), and aluminum bromide (AlBr3); iodides such as magnesium iodide (MgI2, MgI2.6H2O), calcium iodide (CaI2), and aluminum iodide (AlI3); zeolites; and sodium hydrogen phosphate (Na2HPO4). Some embodiments may include anhydrous inorganic salts such as calcium sulfate (CaSO4), magnesium sulfate (MgSO4), calcium chloride (CaCl2), magnesium chloride (MgCl2), calcium oxide (CaO), and mixtures thereof, due to their effective heat generation, gentleness to hair and / or skin, and ease of handling. Some embodiments may include anhydrous magnesium sulfate (MgSO4).

[0031] The inorganic heat generating agents useful herein may preferably have an average diameter of about 0.01 μm to about 200 μm, more preferably about 0.05 μm to about 30 μm, and even more preferably about 0.1 μm to about 20 μm, from the viewpoint of preventing a rough feeling.

[0032] The inorganic heat generating agent may be included in the composition at a concentration of from about 5% to about 60% by weight of the first composition, in some embodiments from about 8% to about 50% by weight, and in other embodiments from about 10% to about 35% by weight, from about 10% to about 30% by weight, or from about 12% to about 20% by weight.

[0033] Phase transfer agent The anhydrous cosmetic composition can include a phase transition agent dispersed in an inert carrier.The phase transition agent can have a specific melting point, and is believed to be able to absorb heat from the heat generating agent by changing its phase from solid to liquid, and then slowly release heat by changing its phase from liquid to solid.Therefore, it is believed that the phase transition agent can prevent the composition from heating to a temperature higher than expected without using a coated heat generating agent, and provide long-term heating from the composition.

[0034] The phase transfer agent of the present invention may have a melting point of about 30°C to about 70°C, preferably about 30°C to about 60°C, and more preferably about 35°C to about 50°C. This melting point may be that of a single material. The melting point may also be that of a mixture of two or more materials if the two or more materials are miscible with each other. In this case, each material does not necessarily have a melting point of about 30°C to about 70°C, but the mixture will have a melting point of about 30°C to about 70°C.

[0035] Phase transfer agents useful herein include, for example, amidoamines; fatty compounds such as fatty alcohols, fatty acids, fatty alcohol derivatives, fatty acid derivatives, and mixtures thereof; hydrocarbons such as solid paraffin; and mixtures thereof. Fatty compounds useful herein are disclosed below under the heading "high-melting-point fatty compounds." Amidoamines useful herein are disclosed below under the heading "amidoamines." Preferred phase transfer agents, from the viewpoint of providing conditioning benefits, are fatty compounds such as fatty alcohols, fatty acids, fatty alcohol derivatives, fatty acid derivatives, and mixtures thereof; amidoamines; and mixtures thereof. Fatty alcohols selected from the group consisting of cetyl alcohol (melting point: 46-55°C), stearyl alcohol (melting point: 54-61°C), and mixtures thereof are more preferred, and mixtures of cetyl alcohol and stearyl alcohol in which the weight ratio of cetyl alcohol to stearyl alcohol is about 10:90 to about 99:1 (melting point: about 48°C to about 58°C) are even more preferred. To function as a phase transfer agent, these materials can be dispersed in an inert carrier but cannot be dissolved. A material can be completely dissolved in an inert carrier, and even if its melting point is about 30°C to about 70°C, it cannot function as a phase transfer agent of the present invention. For example, Japanese Patent Application Laid-Open No. 11-228332 discloses a composition (Example 9) containing 5% by weight of myristyl myristate and 65% by weight of octyl stearate carrier, both of which have a melting point of 41-43°C. However, because the 5% by weight of myristyl myristate is completely dissolved in the 65% by weight of octyl stearate carrier, it cannot function as a phase transfer agent of the present invention.

[0036] In the present invention, to disperse a phase transfer agent in an inert carrier, a substance insoluble in the inert carrier is used, or the substance is contained in the inert carrier at a concentration equal to or higher than its saturation point. Materials with low solubility in the inert carrier can also be used. This solubility depends on the particular combination of phase transfer agent and inert carrier. For example, preferred combinations of phase transfer agent and inert carrier include a combination of a high-melting-point aliphatic compound as the phase transfer agent and polyethylene glycol as the inert carrier; a combination of a high-melting-point aliphatic compound as the phase transfer agent and glycerin as the inert carrier; a combination of a high-melting-point aliphatic compound as the phase transfer agent and a low-melting-point ester oil as the inert carrier; a combination of a high-melting-point aliphatic compound as the phase transfer agent and liquid paraffin as the inert carrier; and a combination of a hydrocarbon such as solid paraffin as the phase transfer agent and polyethylene glycol as the inert carrier. Additional examples include a combination of a fatty alcohol selected from the group consisting of cetyl alcohol, stearyl alcohol, and mixtures thereof as a phase transfer agent and polyethylene glycol as an inert carrier; a combination of a fatty alcohol selected from the group consisting of cetyl alcohol, stearyl alcohol, and mixtures thereof as a phase transfer agent and glycerin as an inert carrier; and a combination of a fatty alcohol selected from the group consisting of cetyl alcohol, stearyl alcohol, and mixtures thereof as a phase transfer agent and pentaerythritol ester oil as an inert carrier. The phase change agent may be included in the composition preferably at a concentration of about 0.2% to about 20% by weight, more preferably about 0.5% to about 15% by weight, and even more preferably about 1% to about 10% by weight.

[0037] Polyoxyalkylene Derivatives The anhydrous first warming composition may contain a polyoxyalkylene derivative. The polyoxyalkylene derivative may help disperse the inorganic heat generating agent in the inert carrier, thus preventing the inorganic heat generating agent from agglomerating, which may cause a rough feeling on the skin and / or hair. Some polyoxyalkylene derivatives may also provide a smooth feel, which may alleviate the rough feeling caused by the inorganic heat generating agent.

[0038] The polyoxyalkylene derivative useful in the present specification may be a water-soluble polyoxyalkylene derivative. Examples of the polyoxyalkylene derivative useful in the present specification include polyoxyethylene / polyoxypropylene copolymers, polyoxyethylene alkyl ethers, polyoxypropylene alkyl ethers, polyoxyethylene alkyl ether esters, polyoxypropylene alkyl ether esters, polyoxyethylene glyceryl esters, polyoxypropylene glyceryl esters, and mixtures thereof. Among these, polyoxyethylene / polyoxypropylene copolymers may be used from the viewpoint of preventing aggregation of the inorganic heat-generating agent, and polyoxyethylene glyceryl esters may be used from the viewpoint of imparting a smooth feel to the touch.

[0039] When a polyoxyalkylene derivative is used to prevent aggregation of the inorganic heat generating agent, the polyoxyalkylene derivative may be contained in the composition at a concentration of about 0.1% to about 10% by weight, or about 0.5% to about 10% by weight, or about 1% to about 5% by weight. When a polyoxyalkylene derivative is used to provide a smooth feel, the polyoxyalkylene derivative may be contained in the composition at a concentration of about 10% to about 90% by weight, or about 15% to about 85% by weight, or about 20% to about 80% by weight.

[0040] Polyoxyethylene alkyl ethers are, for example, those of the formula RO(CH2CH2O) nH, where n is 1 to about 200, preferably about 20 to about 100, and R is alkyl having about 8 to about 22 carbon atoms.

[0041] Examples of polyoxyethylene glyceryl esters include the following (i) and (ii):

[0042] (i) a PEG-modified glyceride having the following structure:

[0043] [ka] wherein one or more of the R groups are selected from saturated or unsaturated fatty acid moieties derived from animal or vegetable oils, such as palmitic acid, lauric acid, oleic acid, or linoleic acid, where the fatty acid moieties have a 12- or 22-carbon chain length, any other R group is hydrogen, x, y, and z are independently 0 or greater, and the average sum of x + y + z (degree of ethoxylation) is equal to about 10 to about 45. The PEG-modified glycerides may have an HLB value of about 20 or less, alternatively about 15 or less, or alternatively about 11 or less. The PEG-modified glycerides may have two to three fatty acid R groups, alternatively three fatty acid R groups (PEG-modified triglycerides). Preferably, the average sum of x + y + z (degree of ethoxylation) is equal to about 20 to about 30, alternatively the average sum is about 5. PEG-substituted triglyceride (PEG-25 glyceryl trioleate) having three oleic acid R groups and an average degree of ethoxylation of about 25. Commercially available PEG-modified triglycerides include Tagat® TOO, Tegosoft® GC, Tagat® BL276 (all three manufactured by Evonik Industries® AG), and Crovol® A-40 and Crovol® M-40 (manufactured by Croda Corporation). Other preferred commercially available PEG-modified triglycerides include Tagat® S and Tagat® S2 (manufactured by Evonik Industries® AG).

[0044] (ii) PEG-modified glyceryl fatty acid ester having the following structure:

[0045] [ka] wherein n (degree of ethoxylation) is from about 4 to about 200, alternatively from about 5 to about 150, alternatively from about 20 to about 120, and wherein R comprises an aliphatic radical having from about 5 to about 25 carbon atoms, alternatively from about 7 to about 20 carbon atoms. Suitable polyethylene glycol derivatives of glycerides can be polyethylene glycol derivatives of hydrogenated castor oil. For example, PEG-20 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-45 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-55 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-80 hydrogenated castor oil, and PEG-100 hydrogenated castor oil. In some examples, the composition can include PEG-60 hydrogenated castor oil. Other suitable polyethylene glycol derivatives of glycerides may be polyethylene glycol derivatives of stearic acid, such as PEG-30 stearate, PEG-40 stearate, PEG-50 stearate, PEG-75 stearate, PEG-90 stearate, PEG-100 stearate, PEG-120 stearate, and PEG-150 stearate. Preferred for use in the compositions herein is PEG-100 stearate.

[0046] Examples of polyoxyethylene / polyoxypropylene copolymers include polyoxyethylene / polyoxypropylene random copolymers and polyoxyethylene / polyoxypropylene block copolymers. Among these polyoxyalkylene derivatives, polyoxyethylene / polyoxypropylene copolymers, including polyoxyethylene / polyoxypropylene random copolymers and polyoxyethylene / polyoxypropylene block copolymers, may be used in the compositions of the present invention in terms of their suspending effect. Polyoxyethylene / polyoxypropylene block copolymers may also be used, and in some examples, the compositions may contain polyoxyethylene / polyoxypropylene block copolymers having a weight ratio of polyoxyethylene to polyoxypropylene of about 5:10 to about 8:10, or block copolymers having a ratio of 8:10.

[0047] Commercially available polyoxyalkylene derivatives useful herein include polyoxyethylene / polyoxypropylene block copolymers having the CTFA designation Poloxamer 338, available from BASF® under the trade name Pluronic F-108, also available from Sanyo® Chemical under the trade name Newpol PE-108, and having the CTFA designation Poloxamer 288, available from BASF® under the trade name Pluronic® F-98, also available from Sanyo® Chemical under the trade name Newpol® PE-98.

[0048] Inert Carrier The anhydrous first composition of the present invention preferably includes an inert carrier, which may be contained in the first composition at a concentration of about 3% to about 90% by weight, alternatively about 25% to about 90% by weight, alternatively about 30% to about 85% by weight, or alternatively about 10% to about 70% by weight.

[0049] Examples of inert carriers useful herein include liquid carriers, such as liquid polyhydric alcohols such as polyethylene glycol, polypropylene glycol, 1,2-propanediol or propylene glycol, 1,3-propanediol, hexylene glycol, glycerin, diethylene glycol, dipropylene glycol, 1,2-butylene glycol, 1,4-butylene glycol, ethanol, sorbitol, diglycerin, and polyglycerol; liquid paraffin; mineral oil; vegetable oil; low-melting-point oils such as pentaerythritol tetraisostearate; and mixtures thereof. Liquid polyhydric alcohols such as polyethylene glycol can also be used as additional heat-generating agents. In terms of physical properties such as viscosity and fluidity, polyethylene glycol, polypropylene glycol, glycerin, diglycerin, sorbitol, liquid paraffin, mineral oil, vegetable oil, pentaerythritol tetraisostearate, and mixtures thereof are preferred. Polyethylene glycol is more preferred in terms of its heat-generating ability when mixed with water and its physical properties such as viscosity and fluidity.

[0050] The polyethylene glycols useful herein are those having the formula: H(OCH2CH2)n-OH In the formula, n has an average value of 4 to 12.

[0051] The polyethylene glycol is also known as polyethylene oxide or polyoxyethylene. A particularly preferred polyethylene glycol useful herein is PEG-200, with n having an average value of about 4. Preferred commercially available polyethylene glycols include, for example, PEG-4, which has the trade name Pluracare E 200, available from BASF.

[0052] Reaction Control Agent The anhydrous first composition of the present invention preferably contains a reaction control agent capable of controlling the exothermic reaction of the inorganic exothermic agent. The reaction control agent can slow down or accelerate the reaction. The reaction control agent can also control the temperature to which the first composition warms.

[0053] Acids can be used as reaction control agents to accelerate the reaction of inorganic heat generating agents. Examples of acids useful herein include citric acid, sodium diphosphate, potassium diphosphate, L-glutamic acid, lactic acid, hydrochloric acid, malic acid, succinic acid, acetic acid, fumaric acid, L-glutamic acid hydrochloride, tartaric acid, and mixtures thereof, with L-glutamic acid, lactic acid, hydrochloric acid, and mixtures thereof being preferred. Among the above acids, citric acid is preferred for use herein. Some acids may also be used together with amidoamines to provide conditioning effects, as described below. The acid may be present at a concentration such that the molar ratio of inorganic heat generating agent to acid is about 1:0.1 to about 1:10, preferably about 1:0.5 to about 1:5. A water-absorbing polymer can be used as a reaction control agent to slow down the reaction of inorganic heat generating agents. Water-absorbing polymers useful herein include, for example, vinyl polymers such as crosslinked acrylic acid polymers having the CTFA designation carbomer, carboxylic acid / carboxylate copolymers such as acrylic acid / alkyl acrylate copolymers having the CTFA designation acrylate / C10-30 alkyl acrylate crosspolymer, cellulose derivatives and modified cellulose polymers such as hydroxyethyl cellulose and hydroxypropyl cellulose, polyvinylpyrrolidone, polyvinyl alcohol, guar gum, other gums, starch-based polymers, alginic acid-based polymers, acrylate polymers, polyalkylene glycols having a molecular weight greater than about 1000, and mixtures thereof. These water-absorbing polymers can also be used as viscosity modifiers, as described below.

[0054] Among the above water-absorbing polymers, cellulose derivatives and modified cellulose polymers are preferred, and hydroxyethyl cellulose is more preferred. The water-absorbing polymer may be contained in the first composition at a concentration of preferably about 0.2% by weight to about 20% by weight, more preferably about 0.5% by weight to about 15% by weight, and even more preferably about 1% by weight to about 10% by weight.

[0055] heat storage material The anhydrous first composition of the present invention may contain a heat storage material that can store heat. The heat storage material can be used to prolong heating, slow the heating rate, and control the temperature to which the cosmetic composition warms.

[0056] Examples of heat storage materials include silica gel, carboxymethyl cellulose gel, phase change materials, and mixtures thereof. Phase change materials useful herein have a melting point of about 25°C to about 80°C. Examples of phase change materials useful herein include aliphatic compounds such as aliphatic alcohols and fatty acids, hydrocarbons, mixtures of hydrocarbons and foamed polyolefins, and mixtures thereof. Aliphatic compounds useful herein are disclosed below as high-melting-point aliphatic compounds.

[0057] The heat storage material may be contained in the first composition at a concentration of preferably about 0.2% by weight to about 20% by weight, more preferably about 0.5% by weight to about 15% by weight, and even more preferably about 1% by weight to about 10% by weight.

[0058] Viscosity modifier The anhydrous first composition of the present invention may contain a viscosity modifier. Viscosity modifiers useful herein include, for example, vinyl polymers such as crosslinked acrylic acid polymers having the CTFA designation carbomer; carboxylic acid / carboxylate copolymers such as acrylic acid / alkyl acrylate copolymers having the CTFA designation acrylate / C10-30 alkyl acrylate crosspolymer; cellulose derivatives and modified cellulose polymers; polyvinylpyrrolidone; polyvinyl alcohol; guar gum; other gums; starch-based polymers; alginic acid-based polymers; acrylate polymers; polyalkylene glycols having a molecular weight greater than about 1000; inorganic water-soluble materials such as bentonite, magnesium aluminum silicate, laponite, hectorite, and silicic anhydride; and mixtures thereof. The polymers described herein can also be used as viscosity modifiers. Some of the polyalkylene glycols described herein can also be used as hair conditioning agents.

[0059] The viscosity modifier may be included in the composition at a concentration of preferably about 0.01% to about 5% by weight, more preferably about 0.05% to about 3% by weight, and even more preferably about 0.1% to about 3% by weight.

[0060] Additional heat generating agent In addition to the inorganic heat generating agent, the anhydrous first composition of the present invention may contain an additional heat generating agent that generates heat upon mixing with water. Such additional heat generating agents useful herein include, for example, organic heat generating agents such as polyhydric alcohols.

[0061] Examples of polyhydric alcohols useful herein include polyethylene glycol, polypropylene glycol, 1,2-propanediol or propylene glycol, 1,3-propanediol, hexylene glycol, glycerin, diethylene glycol, dipropylene glycol, 1,2-butylene glycol, 1,4-butylene glycol, ethanol, 1-propanol, 1-butanol, 2-propanol, erythritol, threitol, xylitol, sorbitol, mannitol, galactitol, iditol, inositol, diglycerin, polyglycerol, polyglycerol fatty acid esters, and mixtures thereof, which can also be used as the inert carrier described above.

[0062] Such additional heat generating agents may be included in the first composition at a concentration of, alternatively, from about 2% to about 85% by weight, alternatively from about 5% to about 85% by weight, or alternatively from about 10% to about 85% by weight.

[0063] Hair Conditioning Composition The anhydrous composition may comprise a hair conditioning composition.The anhydrous hair composition may contain a hair conditioning agent in addition to the above-mentioned heat generating agent, phase transfer agent, and inert carrier.Hair conditioning agents useful herein include, for example, high-melting-point fatty compounds, amidoamines, acids, cationic conditioning agents such as cationic surfactants and cationic polymers, low-melting-point oils, silicone compounds, polypropylene glycols, polyethylene glycols, and mixtures thereof.Among these hair conditioning agents, preferred are high-melting-point fatty compounds, amidoamines, acids, and mixtures thereof.

[0064] High-melting point aliphatic compounds The composition of the present invention may preferably contain a high-melting-point fatty compound, which can be used as the above-mentioned "phase transfer agent."

[0065] High-melting-point fatty compounds useful herein have a melting point of 25°C or higher and are selected from the group consisting of fatty alcohols, fatty acids, fatty alcohol derivatives, fatty acid derivatives, and mixtures thereof. Those skilled in the art will understand that the compounds disclosed in this section of the specification may in some cases belong to more than one classification; for example, some fatty alcohol derivatives may also be classified as fatty acid derivatives. However, a given classification is not intended to limit the specific compound, but is made so for the convenience of classification and nomenclature. Furthermore, those skilled in the art will understand that depending on the number and position of double bonds and the length and position of branching, the melting point of certain compounds with certain essential carbon atoms may be below 25°C. Such compounds with low melting points are not intended to be included in this section. Non-limiting examples of high-melting-point compounds can be found in the International Cosmetic Ingredient Dictionary, Fifth Edition, 1993, and the CTFA Cosmetic Ingredient Handbook, Second Edition, 1992.

[0066] The high melting point aliphatic compound may be contained in the present composition at a concentration of preferably about 0.1% by weight to about 30% by weight, more preferably about 0.2% by weight to about 0.25% by weight, and even more preferably about 0.5% by weight to about 15% by weight.

[0067] Fatty alcohols useful herein are those having from about 14 to about 30 carbon atoms, alternatively from about 16 to about 22 carbon atoms. These fatty alcohols are saturated and can be straight or branched chain alcohols. Non-limiting examples of fatty alcohols include cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof.

[0068] Fatty acids useful herein are those having from about 10 to about 30 carbon atoms, alternatively from about 12 to about 22 carbon atoms, alternatively from about 16 to about 22 carbon atoms. These fatty acids are saturated and can be straight-chain or branched-chain acids. Also included herein are diacids, triacids, and other polyacids that meet the requirements of this specification. Also included herein are salts of these fatty acids. Non-limiting examples of fatty acids include lauric acid, palmitic acid, stearic acid, behenic acid, sebacic acid, and mixtures thereof.

[0069] Fatty alcohol and fatty acid derivatives useful herein include alkyl ethers of fatty alcohols, alkoxylated fatty alcohols, alkyl ethers of alkoxylated fatty alcohols, esters of fatty alcohols, fatty acid esters of compounds having an esterifiable hydroxy group, hydroxy-substituted fatty acids, and mixtures thereof. Non-limiting examples of fatty alcohol and fatty acid derivatives include methyl stearyl ether; a series of ceteth compounds such as ceteth-1 to ceteth-45 (which are ethylene glycol ethers of cetyl alcohol, the numerical designation indicating the number of ethylene glycol moieties present); a series of steareth compounds such as steareth 1 to 10 (which are ethylene glycol ethers of steareth alcohol, the numerical designation indicating the number of ethylene glycol moieties present); ethylene glycol ethers of ceteareth alcohol, ceteareth 1 to ceteareth 10, i.e., mixtures of fatty alcohols containing primarily cetyl and stearyl alcohols (the numerical designation indicating the number of ethylene glycol moieties present); and the C1 to C6 of the immediately preceding ceteth, steareth, and ceteareth compounds. 30 alkyl ethers; polyoxyethylene ethers of behenyl alcohol; ethyl stearate, cetyl stearate, cetyl palmitate, stearyl stearate, myristyl myristate, polyoxyethylene cetyl ether stearate, polyoxyethylene stearyl ether stearate, polyoxyethylene lauryl ether stearate, ethylene glycol monostearate, polyoxyethylene monostearate, polyoxyethylene distearate, propylene glycol monostearate, propylene glycol distearate, trimethylolpropane distearate, sorbitan stearate, polyglyceryl stearate, glyceryl monostearate, glyceryl distearate, glyceryl tristearate, and mixtures thereof.

[0070] High-purity single compound high-melting point fatty acid compounds are preferred.A pure single compound of a fatty alcohol selected from the group consisting of pure cetyl alcohol, stearyl alcohol, and behenyl alcohol may be preferred.In this specification, "pure" means that the compound has a purity of at least about 90%, preferably at least about 95%.These high-purity single compounds make it easy to rinse off from hair when consumers rinse off the composition.

[0071] Commercially available high melting point fatty compounds useful herein include cetyl alcohol, stearyl alcohol, and behenyl alcohol having trade names such as the CONOL series available from New Japan Chemical Co., Ltd. (Osaka, Japan) and the NAA series available from NOF (Tokyo, Japan).

[0072] Amidoamine Hair conditioning compositions of the present invention preferably comprise an amidoamine of the general formula:

[0073] R 1 CONH(CH2) m N(R 2 )2 In the formula, R 1 is C 11 ~C 24 is a fatty acid residue, R 2 is C1-C4 alkyl, and m is an integer of 1-4.

[0074] The amidoamine may be contained in the present composition at a concentration of preferably about 0.05% to about 10% by weight, more preferably about 0.05% to about 8% by weight, and even more preferably about 0.1% to about 5% by weight.

[0075] Useful amidoamines include stearamidopropyl dimethylamine, stearamidopropyl diethylamine, stearamidoethyl diethylamine, stearamidoethyl dimethylamine, palmitamidopropyl dimethylamine, palmitamidopropyl diethylamine, palmitamidoethyl diethylamine, palmitamidoethyl dimethylamine, behenamidopropyl dimethylamine, behenamidopropyl diethylamine, behenamidoethyl diethylamine, behenamidoethyl dimethylamine, arachidamidopropyl dimethylamine, arachidamidopropyl diethylamine, arachidamidoethyl diethylamine, arachidamidoethyl dimethylamine, and mixtures thereof, more preferably stearamidopropyl dimethylamine, stearamidoethyl diethylamine, and mixtures thereof. Commercially available amidoamines useful herein include stearamidopropyl dimethylamine, which has the trade name SAPDMA available from Inolex and the trade name Amidoamine MPS available from Nikko.

[0076] acid The hair conditioning composition of the present invention preferably contains an acid selected from the group consisting of L-glutamic acid, lactic acid, hydrochloric acid, malic acid, succinic acid, acetic acid, fumaric acid, L-glutamic acid hydrochloride, tartaric acid, and mixtures thereof, preferably an acid selected from the group consisting of L-glutamic acid, lactic acid, hydrochloric acid, and mixtures thereof. The acids described herein can also be used as the above-mentioned "reaction controller." The acid may be contained at a concentration such that the molar ratio of amidoamine to acid is preferably about 1:0.3 to about 1:1, more preferably about 1:0.5 to about 1:0.9.

[0077] Commercially available acids useful herein include L-glutamic acid, L-glutamic acid (cosmetic grade) available from Ajinomoto.

[0078] cationic conditioning agent The hair conditioning compositions of the present invention may contain a cationic conditioning agent.

[0079] The cationic conditioning agent may be included in the composition at a concentration of preferably from about 0.1% to about 10% by weight, alternatively from about 0.25% to about 8% by weight, alternatively from about 0.5% to about 3% by weight.

[0080] The cationic conditioning agent is selected from the group consisting of cationic surfactants, cationic polymers, and mixtures thereof.

[0081] Cationic surfactants Cationic surfactants useful herein are known to those skilled in the art and are described below.

[0082] Cationic surfactants useful herein have the general formula (I):

[0083] [ka] where R 1 , R 2 , R 3 and R 4 at least one of R is selected from an aliphatic group of 8 to 30 carbon atoms or an aromatic group having up to about 22 carbon atoms, an alkoxy group, a polyoxyalkylene group, an alkylamido group, a hydroxyalkyl group, an aryl group, or an alkylaryl group; 1 , R 2 , R 3 and R 4The remainder of R are independently selected from aliphatic groups of 1 to about 22 carbon atoms, or aromatic groups having up to about 22 carbon atoms, alkoxy groups, polyoxyalkylene groups, alkylamido groups, hydroxyalkyl groups, aryl groups, or alkylaryl groups, and X is a salt-forming anion such as one selected from halogen (e.g., chloride, bromide), acetate, citrate, lactate, glycolate, phosphate, nitrate, sulfonate, sulfate, alkyl sulfate, and alkyl sulfonate radicals. In addition to carbon and hydrogen atoms, the aliphatic groups may contain ether linking groups and other groups such as amino groups. Longer chain aliphatic groups, e.g., those having about 12 carbon atoms or more, may be saturated or unsaturated. R 1 , R 2 , R 3 , and R 4 are independently Ci to approximately C 22 Preferably, the alkyl group is selected from the group consisting of methyl, ...

[0084] Among the cationic surfactants of general formula (I), those containing at least one alkyl chain having at least 16 carbon atoms in the molecule are preferred. Non-limiting examples of such preferred cationic surfactants include those sold under the trade names INCROQUAT TMC-80 by Croda and ECONOL by Sanyo Chemical Industries. behenyltrimethylammonium chloride available under the trade name TM22; cetyltrimethylammonium chloride available from Nikko Chemicals Co., Ltd. under the trade name, for example, CA-2350, hydrogenated tallowalkyltrimethylammonium chloride, dialkyl(14-18)dimethylammonium chloride, ditallowalkyldimethylammonium chloride, dihydroadded tallowalkyldimethylammonium chloride, distearyldimethylammonium chloride, dicetyldimethylammonium chloride, di(behenyl / arachidyl)dimethylammonium chloride, dibehenyldimethylammonium chloride, stearyldimethylbenzylammonium chloride, stearylpropyleneglycolphosphatedimethylammonium chloride, stearoylamidopropyldimethylbenzylammonium chloride, stearoylamidopropyldimethyl(myristylacetate)ammonium chloride, and N-(stearoylaminoformylmethyl)pyridinium chloride.

[0085] Also, at least one of the substituents contains one or more aromatic, ether, ester, amide, or amino moieties, either as a substituent or as a bond in the radical chain, and R 1 ~R 4Also preferred are hydrophilically substituted cationic surfactants in which at least one of the radicals contains one or more hydrophilic moieties selected from alkoxy (preferably C1-C3 alkoxy), polyoxyalkylene (preferably C1-C3 polyoxyalkylene), alkylamide, hydroxyalkyl, alkylester, and combinations thereof. Preferably, the hydrophilically substituted cationic conditioning surfactant contains from 2 to about 10 nonionic hydrophilic moieties located within the above ranges. Preferred hydrophilically substituted cationic surfactants include those of formulas (II) to (VIII) below:

[0086] [ka] (wherein n is 8 to about 28, x+y is 2 to about 40, and Z 1 is a short chain alkyl, preferably a C1-C3 alkyl, more preferably methyl, or (CH2CH2O)zH, where x+y+z is at most 60, and X is a salt-forming anion as defined above;

[0087] [ka] (wherein m is 1 to 5, and R 5 , R 6 , and R 7 One or more of the following can be independently selected: C1 to C 30 alkyl, the remainder is CH2CH2OH, and R 8 , R 9 , and R 10 One or two of these are independently C1 to C 30 alkyl, the remainder being CH2CH2OH, and X being a salt-forming anion as described above);

[0088] [ka] (wherein, for formula (IV) and formula (V), independently, Z 2 is alkyl, preferably C1-C3 alkyl, more preferably methyl, and Z 3is a short chain hydroxyalkyl, preferably hydroxymethyl or hydroxyethyl; p and q are independently an integer of 2 to 4, preferably an integer of 2 to 3, more preferably 2; R 11 and R 12 are independently substituted or unsubstituted hydrocarbyl, preferably C 12 ~C 20 alkyl or alkenyl, and X is a salt-forming anion as defined above;

[0089] [ka] (In the formula, R 13 is hydrocarbyl, preferably C1-C3 alkyl, more preferably methyl, and Z 4 and Z 5 is independently a short chain hydrocarbyl, preferably a C2-C4 alkyl or alkenyl, more preferably ethyl; a is from 2 to about 40, preferably from about 7 to about 30; and X is a salt-forming anion as defined above;

[0090] [ka] (In the formula, R 84 and R 85 are independently C1-C3 alkyl, preferably methyl; Z 6 is C 12 ~C 22 hydrocarbyl, alkylcarboxy or alkylamide, A is a protein, preferably collagen, keratin, milk protein, silk, soy protein, wheat protein or hydrolyzed forms thereof, and X is a salt-forming anion as defined above);

[0091] [ka] (wherein b is 2 or 3; R 16 and R 17are independently C1-C3 hydrocarbyl, preferably methyl, and X is a salt-forming anion as defined above. Non-limiting examples of hydrophilic substituted cationic surfactants useful in the present invention include those having the following CTFA designations: Quaternium-16, Quaternium-26, Quaternium-27, Quaternium-30, Quaternium-33, Quaternium-43, Quaternium-52, Quaternium-53, Quaternium-56, Quaternium-60, Quaternium-61, Quaternium-62, Quaternium-70, Quaternium-71, Quaternium-72, Quaternium-75, Quaternium- Quaternium-76 hydrolyzed collagen, Quaternium-77, Quaternium-78, Quaternium-79 hydrolyzed collagen, Quaternium-79 hydrolyzed keratin, Quaternium-79 hydrolyzed milk protein, Quaternium-79 hydrolyzed silk, Quaternium-79 hydrolyzed soy protein, and Quaternium-79 hydrolyzed wheat protein, Quaternium-80, Quaternium-81, Quaternium-82, Quaternium-83, Quaternium-84, and mixtures thereof.

[0092] Highly preferred hydrophilically substituted cationic surfactants include dialkylamidoethyl hydroxyethylmonium salts, dialkylamidoethyl dimonium salts, dialkyloylethyl hydroxyethylmonium salts, dialkyloylethyl dimonium salts, and mixtures thereof, such as those available from Kao Chemicals under the trade name TETRANYL CO-40.

[0093] Second Composition (Conditioning Composition) The second composition may comprise an oil phase and an aqueous phase.

[0094] Details of oil phase composition The oil phase may contain a surfactant and a high-melting-point fatty compound, and the oil phase preferably contains about 50% by weight to about 100% by weight, more preferably about 60% by weight to about 100% by weight, and even more preferably about 70% by weight to about 100% by weight of the total amount of surfactants and high-melting-point fatty compounds used in the second composition.

[0095] The surfactant and high-melting-point fatty compound are present in the oil phase, regardless of the presence or absence of other ingredients, preferably at a concentration of about 35% to about 100% by weight of the oil phase, more preferably about 50% to about 100% by weight, and even more preferably about 60% to about 100% by weight.

[0096] The oil phase may contain water and an aqueous carrier such as a lower alkyl alcohol or a polyhydric alcohol. When such an aqueous carrier is contained, the concentration of the aqueous carrier in the oil phase is at most about 50% by weight of the oil phase, more preferably at most about 40% by weight, even more preferably at most about 25% by weight, and even more preferably at most about 15% by weight, from the viewpoint of achieving the effects of the present invention. It is more preferable to control the concentration of water in the oil phase so that the concentration of water in the aqueous carrier is preferably at most about 40% by weight, more preferably at most about 25% by weight, even more preferably at most about 15% by weight, and even more preferably at most about 10% by weight of the oil phase. The oil phase may be substantially free of water. In the present invention, "the oil phase is substantially free of water" means that the oil phase does not contain water. The oil phase does not contain water other than impurities, or if the oil phase contains water, the concentration of such water is very low. In the present invention, the total concentration of such water in the oil phase, if included, is preferably 1% or less, more preferably 0.5% or less, even more preferably 0.1% or less by weight of the oil phase.

[0097] The oil phase may contain components other than surfactants, high-melting-point fatty compounds, and aqueous carriers. Such other components include, for example, water-insoluble components and / or heat-sensitive components, such as water-insoluble silicones, water-insoluble fragrances, water-insoluble preservatives such as parabens, and non-heat-sensitive preservatives such as benzyl alcohol. In the present invention, the term "water-insoluble component" means that the solubility of the component in water at 25°C is less than 1 g / 100 g of water (excluding 1 g / 100 g of water), preferably 0.7 g / 100 g or less, more preferably 0.5 g / 100 g or less, and even more preferably 0.3 g / 100 g or less. If included, the concentration of such other components in the oil phase is preferably at most about 50 wt. %, more preferably at most about 40 wt. % of the oil phase, in order to achieve the effects of the present invention.

[0098] Details of the aqueous phase composition The aqueous phase contains an aqueous carrier, and the aqueous phase contains preferably about 50% by weight to about 100% by weight, more preferably about 70% by weight to about 100% by weight, even more preferably about 90% by weight to about 100% by weight, and even more preferably about 95% by weight to about 100% by weight of the total amount of the aqueous carrier used in the second composition.

[0099] The aqueous carrier is present in the aqueous phase, with or without other ingredients, at a concentration of about 50% to about 100% by weight of the aqueous phase, more preferably about 70% to about 100% by weight, even more preferably about 90% to about 100% by weight, and even more preferably about 95% to about 100% by weight.

[0100] The aqueous phase may contain surfactants and high-melting-point fatty compounds. If they are contained, the total concentration of surfactants and high-melting-point fatty compounds in the aqueous phase is preferably at most 20% by weight, more preferably at most about 10% by weight, and even more preferably at most about 7% by weight, from the viewpoint of providing the advantages of the present invention. Even more preferably, the aqueous phase is substantially free of surfactants and high-melting-point fatty compounds. In the present invention, "the aqueous phase is substantially free of surfactants and high-melting-point fatty compounds" means that the aqueous phase does not contain surfactants and high-melting-point fatty compounds, or, if the aqueous phase contains surfactants and high-melting-point fatty compounds, means that the concentrations of such surfactants and high-melting-point fatty compounds are very low. In the present invention, the total concentration of such surfactants and high-melting-point fatty compounds in the aqueous phase, if they are contained, is preferably 1% by weight or less, more preferably 0.5% by weight or less, and even more preferably 0.1% by weight or less of the aqueous phase.

[0101] The aqueous phase may contain components other than surfactants, high-melting-point fatty compounds, and aqueous carriers. Such other components include, for example, water-soluble and / or heat-sensitive components, such as water-soluble pH adjusters, water-soluble polymers, and water-soluble preservatives, such as phenoxyethanol, Kathon®, and sodium benzoate. In the present invention, the term "water-soluble component" means that the solubility of the component in water at 25°C is at least 1 g / 100 g of water, preferably at least 1.2 g / 100 g of water, more preferably at least 1.5 g / 100 g of water, and even more preferably at least 2.0 g / 100 g of water. When included, the concentration of such other components in the aqueous phase is preferably at most about 20% by weight, more preferably at most about 10% by weight, of the aqueous phase, in order to provide the advantages of the present invention.

[0102] The second composition of the present invention may comprise a surfactant, a high-melting-point fatty compound, and an aqueous carrier, wherein the surfactant, the high-melting-point fatty compound, and the aqueous carrier are in the form of an emulsion.

[0103] Cationic surfactant system The composition of the present invention may contain a cationic surfactant system. In order to provide the advantages of the present invention, the cationic surfactant system may be contained in the composition at a concentration of about 0.5% by weight of the second composition, preferably about 1% by weight, more preferably about 1.5% by weight, even more preferably about 1.8% by weight, even more preferably about 2.0% to about 8% by weight, preferably about 5% by weight, and more preferably about 4% by weight.

[0104] Preferably, in the present invention, the surfactant is water-insoluble. In the present invention, the term "water-insoluble surfactant" means that the solubility of the surfactant in water at 25°C is less than 1 g / 100 g of water (excluding 1 g / 100 g of water), preferably 0.7 g / 100 g or less, more preferably 0.5 g / 100 g or less, and even more preferably 0.3 g / 100 g or less.

[0105] The cationic surfactant system useful herein includes a monoalkyl quaternized ammonium salt cationic surfactant, and in some embodiments, may include a dialkyl cationic surfactant. It is believed that such a combination of a monoalkyl quaternized ammonium salt cationic surfactant and a dialkyl cationic surfactant provides a quicker rinsing experience and / or a more easily spreadable feel over the hair compared to the use of a monoalkyl cationic surfactant alone with a single long alkyl chain having 12 to 30 carbon atoms. In the cationic surfactant system, the weight ratio of the monoalkyl quaternized ammonium salt cationic surfactant to the dialkyl cationic surfactant is preferably from about 1:1 to about 10:1, more preferably from about 1.5:1 to about 7:1, and even more preferably from about 2:1 to about 5:1, from the standpoint of rheological stability and conditioning effect.

[0106] Monoalkyl quaternized ammonium salt cationic surfactant From the viewpoint of conditioning effect, the monoalkyl quaternized ammonium salt cationic surfactant useful herein preferably has a single long alkyl chain of 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, and even more preferably 18 to 22 carbon atoms. Such monoalkyl quaternized ammonium salt cationic surfactant useful herein is, for example, a compound represented by formula (I):

[0107] [ka] wherein R 71 , R 72 , R 73 , and R 74 is selected from an aliphatic group having 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, and even more preferably 18 to 22 carbon atoms, or an aromatic group having up to about 30 carbon atoms, an alkoxy group, a polyoxyalkylene group, an alkylamido group, a hydroxyalkyl group, an aryl group, or an alkylaryl group; 71 , R 72 , R 73 , and R 74 the remainder are independently selected from aliphatic groups of 1 to about 8 carbon atoms, preferably 1 to 3 carbon atoms, or aromatic groups having up to about 8 carbon atoms, alkoxy groups, polyoxyalkylene groups, alkylamido groups, hydroxyalkyl groups, aryl groups, or alkylaryl groups; and X - is a salt-forming anion selected from the group consisting of halides (e.g., chloride and bromide), C1-C4 alkyl sulfates (e.g., methosulfate and ethosulfate), and mixtures thereof. The aliphatic groups may contain, in addition to carbon and hydrogen atoms, ether linking groups, and other groups such as amino groups. Longer chain aliphatic groups, e.g., aliphatic groups of about 16 carbons or more, may be saturated or unsaturated. Preferably, R 71 , R 72 , R 73 , and R 74is selected from alkyl groups of 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, and even more preferably 18 to 22 carbon atoms; 71 , R 72 , R 73 , and R 74 the remainder are independently selected from CH3, C2H5, C2H4OH, CH2C6H5, and mixtures thereof.

[0108] Among these, more preferred cationic surfactants are those having a longer alkyl chain, i.e., a C18 to C22 alkyl group. Examples of such cationic surfactants include behenyltrimethylammonium chloride, methyl sulfate or ethyl sulfate, and stearyltrimethylammonium chloride, methyl sulfate or ethyl sulfate.

[0109] Dialkyl Cationic Surfactants Dialkyl cationic surfactants useful herein are those having two long alkyl chains of 12 to 30 carbon atoms, more preferably 16 to 24 carbon atoms, and even more preferably 18 to 22 carbon atoms, such as, for example, di-long alkyl quaternized ammonium salts. Such di-alkyl quaternized ammonium salts useful herein have the formula (I):

[0110] [ka] In the formula, R 71 , R 72 , R 73 , and R 74 two of R are selected from an aliphatic group having 12 to 30 carbon atoms, preferably 16 to 24 carbon atoms, more preferably 18 to 22 carbon atoms, or an aromatic group having up to about 30 carbon atoms, an alkoxy group, a polyoxyalkylene group, an alkylamido group, a hydroxyalkyl group, an aryl group, or an alkylaryl group; 71 , R 72 , R 73 , and R 74the remainder are independently selected from aliphatic groups of 1 to about 8 carbon atoms, preferably 1 to 3 carbon atoms, or aromatic groups having up to about 8 carbon atoms, alkoxy groups, polyoxyalkylene groups, alkylamido groups, hydroxyalkyl groups, aryl groups, or alkylaryl groups; and X - is a salt-forming anion selected from the group consisting of halides (e.g., chloride and bromide), C1-C4 alkyl sulfates (e.g., methosulfate and ethosulfate), and mixtures thereof. The aliphatic groups may contain, in addition to carbon and hydrogen atoms, ether linking groups, and other groups such as amino groups. Longer chain aliphatic groups, e.g., aliphatic groups of about 16 carbons or more, may be saturated or unsaturated. Preferably, R 71 , R 72 , R 73 , and R 74 two of R are selected from alkyl groups of 12 to 30 carbon atoms, preferably 16 to 24 carbon atoms, more preferably 18 to 22 carbon atoms; 71 , R 72 , R 73 , and R 74 the remainder are independently selected from CH3, C2H5, C2H4OH, CH2C6H5, and mixtures thereof.

[0111] Such preferred dialkyl cationic surfactants include, for example, dialkyl(14-18)dimethylammonium chloride, ditallowalkyldimethylammonium chloride, dihydro-added tallowalkyldimethylammonium chloride, distearyldimethylammonium chloride, and dicetyldimethylammonium chloride.

[0112] High-melting point aliphatic compounds In order to provide the effects of the present invention, the high melting point aliphatic compound may be contained in the second composition at a concentration of about 0.5% by weight of the second composition, preferably about 1.0% by weight, more preferably about 1.5% by weight, even more preferably about 2% by weight, even more preferably about 4% to about 15% by weight, and preferably about 6% by weight.

[0113] High-melting-point fatty compounds useful herein have a melting point of 25°C or higher, preferably 40°C or higher, more preferably 45°C or higher, and even more preferably 50°C or higher, from the viewpoint of emulsion, particularly gel matrix, stability. Preferably, such melting point is at most about 90°C, more preferably at most about 80°C, even more preferably at most about 70°C, and even more preferably at most about 65°C, from the viewpoint of easier production and easier emulsification. In the present invention, the high-melting-point fatty compound can be used as a single compound or as a blend or mixture of at least two high-melting-point fatty compounds. When used as such a blend or mixture, the melting point referred to above refers to the melting point of the blend or mixture.

[0114] The high-melting-point fatty compounds useful herein are selected from the group consisting of fatty alcohols, fatty acids, fatty alcohol derivatives, fatty acid derivatives, and mixtures thereof. Those skilled in the art will understand that the compounds disclosed in this section may belong to more than one category in some cases; for example, some fatty alcohol derivatives may also be classified as fatty acid derivatives. However, a given classification is not intended to limit the specific compound, but is made so for the convenience of classification and nomenclature. Furthermore, those skilled in the art will understand that, depending on the number and position of double bonds and the length and position of branching, certain compounds with certain essential carbon atoms may have a melting point lower than the melting point preferred in the present invention as described above. Such compounds with low melting points are not intended to be included in this section. Non-limiting examples of high-melting-point compounds can be found in the International Cosmetic Ingredient Dictionary, Fifth Edition, 1993, and the CTFA Cosmetic Ingredient Handbook, Second Edition, 1992.

[0115] Among the various high-melting point fatty compounds, fatty alcohols can be used in the compositions of the present invention. The fatty alcohols useful herein are those having from about 14 to about 30 carbon atoms, preferably from about 16 to about 22 carbon atoms. These fatty alcohols are saturated and may be straight-chain or branched-chain alcohols.

[0116] For example, preferred fatty alcohols include cetyl alcohol (having a melting point of about 56°C), stearyl alcohol (having a melting point of about 58-59°C), behenyl alcohol (having a melting point of about 71°C), and mixtures thereof. These compounds are known to have the above melting points. However, they often have lower melting points when supplied, because such supplied products are often mixtures of fatty alcohols with an alkyl chain length distribution in which the predominant alkyl chain is cetyl, stearyl, or behenyl. In the present invention, more preferred fatty alcohols are cetyl alcohol, stearyl alcohol, and mixtures thereof.

[0117] Commercially available high melting point fatty compounds useful herein include cetyl alcohol, stearyl alcohol, and behenyl alcohol having trade names such as the CONOL series available from New Japan Chemical Co., Ltd. (Osaka, Japan) and the NAA series available from NOF (Tokyo, Japan).

[0118] Gel Matrix Preferably, in the present invention, the emulsion of the second composition is in the form of a gel matrix. The gel matrix comprises a cationic surfactant system, a high-melting-point fatty compound, and an aqueous carrier. The gel matrix is ​​suitable for providing various conditioning effects, such as a smooth feel during application to wet hair and soft and moisturizing feel on dry hair.

[0119] Preferably, particularly when a gel matrix is ​​formed, the total amount of cationic surfactant and high-melting-point fatty compound is from about 1.0% by weight of the composition, preferably from about 2.0% by weight, more preferably from about 3.0% by weight, taking into consideration the benefits of the present invention, and up to about 15% by weight of the composition, preferably up to about 14% by weight, more preferably up to about 13% by weight, and even more preferably up to about 10% by weight, taking into consideration spreadability and product appearance. Furthermore, when a gel matrix is ​​formed, the cationic surfactant and high-melting-point fatty compound are contained at a concentration such that the weight ratio of cationic surfactant to high-melting-point fatty compound is preferably within the range of from about 1:1 to about 1:10, more preferably from about 1:1 to about 1:4, and even more preferably from about 1:2 to about 1:4, from the viewpoint of providing improved wet conditioning effects.

[0120] Preferably, when a gel matrix is ​​formed, the composition of the present invention is substantially free of anionic surfactants and anionic polymers from the viewpoint of gel matrix stability. In the present invention, "the composition is substantially free of anionic surfactants and anionic polymers" means that the composition does not contain anionic surfactants and anionic polymers, or, if the composition contains anionic surfactants and anionic polymers, the concentrations of such anionic surfactants and anionic polymers are very low. In the present invention, the total concentration of such anionic surfactants and anionic polymers, if present, is preferably 1% by weight or less, more preferably 0.5% by weight or less, and even more preferably 0.1% by weight or less of the composition. Most preferably, the total concentration of such anionic surfactants and anionic polymers is 0% by weight of the composition.

[0121] Water-based carrier The second composition of the present invention may include an aqueous carrier, the concentration and type of which is selected according to compatibility with the other ingredients and other desired properties of the product.

[0122] Carriers useful in the present invention include water and aqueous solutions of lower alkyl alcohols and polyhydric alcohols. Lower alkyl alcohols useful herein are monohydric alcohols having 1 to 6 carbon atoms, more preferably ethanol and isopropanol. Polyhydric alcohols useful herein include propylene glycol, hexylene glycol, glycerin, and propanediol.

[0123] Preferably, the aqueous carrier is substantially water. Preferably, deionized water is used. Water from natural sources containing mineral cations can also be used, depending on the desired properties of the product. Generally, the second composition of the present invention comprises about 20% to about 99% by weight of the second present composition, preferably about 30% to about 95% by weight, and more preferably about 80% to about 90% by weight of water.

[0124] Silicone Compounds The second composition may contain a silicone compound. It is believed that the silicone compound can impart smoothness and softness to dry hair. The silicone compound herein can be used at a concentration of preferably about 0.1% to about 20% by weight of the second composition, more preferably about 0.5% to about 10% by weight, and even more preferably about 1% to about 8% by weight.

[0125] Preferably, the silicone compound may have an average particle size in the composition of from about 1 micron to about 50 microns.

[0126] The silicone compounds useful herein, as a single compound, as a blend or mixture of at least two silicone compounds, or as a blend or mixture of at least one silicone compound and at least one solvent, preferably have a viscosity of about 1,000 to about 2,000,000 mPa·s at 25° C.

[0127] Viscosity can be measured using a glass capillary viscometer as described in Dow Corning Corporate Test Method CTM0004 (July 20, 1970). Suitable silicone fluids include polyalkylsiloxanes, polyarylsiloxanes, polyalkylarylsiloxanes, polyethersiloxane copolymers, amino-substituted silicones, quaternized silicones, and mixtures thereof. Other nonvolatile silicone compounds with conditioning properties can also be used.

[0128] Preferred polyalkylsiloxanes include, for example, polydimethylsiloxane, polydiethylsiloxane, and polymethylphenylsiloxane.Polydimethylsiloxane, also known as dimethicone, is particularly preferred.These silicone compounds are available, for example, from General Electric Company in their Viscasil® and TSF451 series, and from Dow Corning in their Dow Corning SH200 series.

[0129] The polyalkylsiloxanes described above can be used as mixtures with silicone compounds having lower viscosities. The viscosity of such mixtures is preferably about 1,000 mPa·s to about 100,000 mPa·s, more preferably about 5,000 mPa·s to about 50,000 mPa·s. Such mixtures preferably contain (i) a first silicone having a viscosity of about 100,000 mPa·s to about 30,000,000 mPa·s, preferably about 100,000 mPa·s to about 20,000,000 mPa·s, at 25°C, and (ii) a second silicone having a viscosity of about 5 mPa·s to about 10,000 mPa·s, preferably about 5 mPa·s to about 5,000 mPa·s, at 25°C. Such mixtures useful herein include, for example, a blend of dimethicone having a viscosity of 18,000,000 mPa·s and dimethicone having a viscosity of 200 mPa·s available from GE Toshiba, and a blend of dimethicone having a viscosity of 18,000,000 mPa·s and cyclopentasiloxane available from GE Toshiba.

[0130] Silicone compounds useful herein also include silicone gums. As used herein, the term "silicone gum" refers to polyorganosiloxane materials having a viscosity of 1,000,000 centistokes or greater at 25°C. It is recognized that the silicone gums described herein may overlap somewhat with the silicone compounds disclosed above. This overlap is not intended to limit any of these materials. "Silicone gums" typically have a mass molecular weight greater than about 200,000, generally from about 200,000 to about 1,000,000. Specific examples include polydimethylsiloxane, poly(dimethylsiloxane-methylvinylsiloxane) copolymer, poly(dimethylsiloxane-diphenylsiloxane-methylvinylsiloxane) copolymer, and mixtures thereof. Silicone gums are available, for example, as blends with silicone compounds having lower viscosities. Such blends useful herein include, for example, gum / cyclomethicone blends available from Shin-Etsu.

[0131] Silicone compounds useful herein also include amino-substituted materials. Preferred aminosilicones include, for example, those having the general formula (I): (R1) a G 3-a -Si-(-OSiG2) n -(-OSiG b (R1) 2-b ) m -O-SiG 3-a (R1) a wherein G is hydrogen, phenyl, hydroxy, or C1-C8 alkyl, preferably methyl; a is an integer having a value of 0 or 1-3, preferably 1; b is 0, 1, or 2, preferably 1; n is a number from 0 to 1,999; m is an integer from 0 to 1,999, the sum of n and m is a number from 1 to 2,000; a and m are not both 0; and R1 is a compound having the general formula CqH 2qis a monovalent radical conforming to L, where q is an integer having a value of 2 to 8, and L is -N(R2)CH2-CH2-N(R2)2, -N(R2)2, -N(R2)3A - , -N(R2)CH2-CH2-NR2H2A - and R2 is selected from the group consisting of hydrogen, phenyl, benzyl, or a saturated hydrocarbon radical, preferably from about C1 to about C 20 is an alkyl radical of A - is a halide ion.

[0132] A highly preferred aminosilicone corresponds to formula (I), where m = 0, a = 1, q = 3, and G = methyl; n is preferably about 1500 to about 1700, more preferably about 1600; and L is -N(CH3)2 or -NH2, more preferably -NH2. Another highly preferred aminosilicone corresponds to formula (I), where m = 0, a = 1, q = 3, and G = methyl; n is preferably about 400 to about 600, more preferably about 500; and L is -N(CH3)2 or -NH2, more preferably -NH2. Because one or both ends of the silicone chain are terminated with a nitrogen-containing group, such highly preferred aminosilicones can be referred to as terminal aminosilicones.

[0133] When incorporated into the second composition, the aminosilicone described above can be mixed with a solvent having a lower viscosity. Examples of such solvents include polar or non-polar, volatile or non-volatile oils. Examples of such oils include silicone oils, hydrocarbons, and esters. Among these various solvents, preferred are those selected from the group consisting of non-polar, volatile hydrocarbons, volatile cyclic silicones, non-volatile linear silicones, and mixtures thereof. The non-volatile linear silicones useful herein have a viscosity of about 1 to about 20,000 centistokes at 25°C, preferably about 20 to about 10,000 centistokes. Among the preferred solvents, non-polar, volatile hydrocarbons, particularly non-polar, volatile isoparaffins, are highly preferred, as they reduce the viscosity of the aminosilicone and provide improved hair conditioning effects, such as reduced friction on dry hair. The viscosity of such a mixture is preferably about 1,000 mPa·s to about 100,000 mPa·s, and more preferably about 5,000 mPa·s to about 50,000 mPa·s.

[0134] Other suitable alkylamino-substituted silicone compounds include those having alkylamino substitution as pendant groups on the silicone backbone. Highly preferred are those known as "amodimethicones." Commercially available amodimethicones useful herein include, for example, BY16-872 available from Dow Corning.

[0135] The silicone compound can further be incorporated into the second composition in the form of an emulsion, wherein the emulsion is made in the synthesis stage by mechanical mixing or by emulsion polymerization with or without a surfactant selected from anionic surfactants, nonionic surfactants, cationic surfactants, and mixtures thereof.

[0136] Additional ingredients The second composition of the present invention may also contain other additional ingredients, which can be selected by those skilled in the art depending on the desired properties of the final product and which are suitable for making the second composition more cosmetically or aesthetically acceptable or for providing additional usage benefits to the second composition. Such other additional ingredients are generally used individually at a concentration of about 0.001% to about 10% by weight of the composition, preferably up to about 5% by weight.

[0137] A wide variety of other additional ingredients can be incorporated into the compositions of the present invention, including other conditioning agents (e.g., hydrolyzed collagen available under the trade name Peptein 2000 from Hormel, vitamin E available under the trade name Emix-d from Eisai, panthenol available from Roche, pantothenyl ethyl ether available from Roche, hydrolyzed keratin, proteins, plant extracts, and nutrients); preservatives (e.g., benzyl alcohol, methylparaben, propylparaben, and imidazolidinyl urea); pH adjusters (e.g., citric acid, sodium citrate, succinic acid, phosphoric acid, sodium hydroxide, sodium carbonate); colorants (e.g., any of the FD&C or D&C dyes); fragrances, and sequestering agents (e.g., disodium ethylenediaminetetraacetate); ultraviolet and infrared absorbing agents (e.g., benzophenone); and antidandruff agents (e.g., zinc pyrithione and piroctone olamine).

[0138] Manufacturing method The present invention is directed to a method of preparing personal care compositions, wherein a first composition can be prepared as described in U.S. Patent Application Publication No. 20030103930(A1) and a second composition can be prepared as described in U.S. Patent Application No. 13 / 617240.

[0139] The cosmetic compositions of the present invention may be multi-phase compositions in that they contain a first composition and a second composition that are kept separate until dispensed. Although they remain separate until dispensed, the first and second compositions are brought into contact upon dispensing. The warming effect may not occur until the cosmetic composition is dispensed and the first and second compositions interact. Various techniques can be used to dispense multi-phase products. A common method is a multi-chamber tube or bottle. As used herein, "the first and second compositions are kept separate from each other" means, for example, that in a two-chamber package, the first composition is contained in a first chamber and the second composition is contained in a separate second chamber. Such packages can be shaped as tubes, pumps, bottles, or upside-down bottles, sachets, and blister packs.

[0140] In the present invention, the first composition and the second composition are not mixed before use, and are preferably mixed in a ratio of about 35:65 to about 98:2, more preferably about 90:10, and even more preferably about 40:60 to about 60:40.

[0141] Although warming conditioners are known, current anhydrous warming conditioners do not necessarily provide top conditioning benefits, such as excellent silicone delivery through the use of a gel network or gel matrix. Similarly, some high-performance conditioners lack the ability to provide warming benefits without sacrificing their performance benefits. Therefore, the present invention can provide high-performance conditioning benefits while also providing warming benefits. The inventors have discovered that the specific ratio and viscosity of the first and second compositions described herein can provide a synergistic warming effect compared to existing warming conditioners, while still providing excellent silicone deposition.

[0142] Warming conditioners using anhydrous inorganic salts are not activated until mixed with water. Typically, conditioners using such warming agents rely on water, such as shower water, to provide the water necessary to initiate heating. The present invention has made several discoveries. First, it may be advantageous if activation of the warming agent, i.e., the induction of heat initiated by mixing the warming agent with water, can occur in the user's hands even before application to the hair and scalp. This results in superior warming effects, as explained below. However, for activation to occur in the hands, the water for activation must be provided in a form that is not thin and runny like plain water. That is, the warming agent must be mixed with a sufficiently viscous yet aqueous composition, such as the second composition of the present invention. In addition, this longer-lasting mixture transfers more easily from the hands to the hair, allowing the heat to be fully felt on the head, i.e., not quickly and easily washed away.

[0143] The warming effect of this composition is superior to the warming effect of either the first composition or the second composition alone. Even though the first composition contains a warming agent, the use of the first composition alone does not provide the excellent silicone deposition, nor does it provide the warming effect of the multi-phase composition of the present invention.

[0144] For example, Figure 1 is a graph of the maximum temperature change produced by hair conditioners under the Maximum Temperature Change Test Method detailed below. The graph shows the maximum temperature change for various conditioners that are mixtures of first and second compositions, specifically the compositions of Table 2. Table 1 is the data for Figures 1 and 2. The graph with an x ​​on the right edge of Figure 1 also shows the maximum temperature change for a hair conditioner that is 100% of the first composition of Table 2, a composition that includes an inorganic heating agent, in this case 15% anhydrous magnesium sulfate. Surprisingly, the conditioner that is 100% of the first composition does not produce the highest maximum temperature change. When both compositions are mixed, the total percentage of heating agent (magnesium sulfate) is reduced. However, with the reduced amount of heating agent, the formulation of the present invention has a larger maximum temperature change.

[0145] While 100% first composition conditioner produced a maximum temperature change of approximately 13 (12.63) degrees Celsius or more, 40%, 50%, 55%, 70%, 80%, 90%, 93%, 95%, and 98% first composition conditioner mixes produced maximum temperature changes of 17.1, 17.4, 19.5, 25.4, 29.6, 29.1, 24.6, 20, and 14.6 degrees Celsius, respectively. As the graph in Figure 1 shows, even when the proportion of first composition Example I containing an inorganic heating agent is reduced, some combinations with the second composition without a heating agent produce a higher maximum temperature change than the first composition alone. That is, a greater warming effect is achieved even with a lower weight percentage of heating agent in the overall mixture. Increasing the concentration of inorganic heating agent in the first composition produces stronger heating, which subsequently increases the maximum temperature change.

[0146] When a smaller amount of magnesium sulfate is used, it is expected that the warming effect will at least decrease.However, the warming effect of the multi-phase composition of the present invention is maintained, and even higher.The inventors believe that the water in the second composition, which is delivered in a specific viscosity and ratio within a specific range with the first composition, can synergistically boost the exothermic reaction of magnesium sulfate.

[0147] In realizing this synergistic effect, the inventors have sought out a specific range within which this effect exists. It is not simply a matter of combining a composition containing a warming agent with some other aqueous composition, but rather a matter of balancing the ratio of the first and second compositions and their respective viscosities to achieve rapid, if not instantaneous, mixing that produces the synergistic warming effect. Viscosity is a measure of how fluid a composition is and therefore how easily the compositions can be mixed together. 100s -1 The viscosity at a shear rate of 1000 psi is selected because this low shear rate simulates the slow mixing of the composition in the palm of a consumer's hand. As shown by the data, formulations outside the specified ratio and viscosity range do not produce a synergistic warming effect, while formulations within the ratio and viscosity range described herein exhibit an unexpected warming effect. In the present invention, the viscosity difference between the first and second compositions may preferably be less than 2.5 Pa.s, more preferably less than 2.0 Pa.s. It is believed that there is an upper limit to the viscosity difference required to exhibit an unexpected warming effect. Beyond this upper limit, the viscosity difference may be too large, causing uneven mixing, resulting in delayed, reduced, or no warming effect at certain ratios.

[0148] FIG. 2 is a graph plotting the molar ratio of water to magnesium sulfate in a mixture versus the percent of the first composition in the mixture. This graph shows that a molar ratio of water to magnesium sulfate that results in a synergistic warming effect can be about 75 to about 0.75. In some embodiments, the molar ratio of water in the second composition to the inorganic heating agent in the first composition can be about 75 to about 0.75, which can result in an unexpected warming effect. If the molar ratio of water to inorganic heating agent is outside this range, the warming effect may not occur. The effective molar ratio can depend on the enthalpy of the particular heating agent, and there can be upper and lower limits to the molar ratio based on the enthalpy of the heating agent, such as calcium chloride (CaCl, CaCl·H2O, CaCl·2H2O), magnesium chloride (MgCl, MgCl·2H2O, MgCl·4H2O), and aluminum chloride. [Example]

[0149] The following examples further describe and demonstrate embodiments within the scope of the present invention. These examples are provided for illustrative purposes only and should not be construed as limiting the invention, as many variations thereof are possible without departing from the spirit and scope of the invention. Where applicable, components are identified by chemical or CTFA name, or are otherwise defined below.

[0150] [Table 1]

[0151] [Table 2]

[0152] Ingredient Definitions * 1 BTMS / IPA: 80% behenyltrimethylammonium methosulfate and 20% isopropyl alcohol *2 BTAC / IPA: 80% behentrimonium chloride and 20% isopropyl alcohol * 3 CTAC / IPA: 50% cetrimonium chloride and 50% isopropyl alcohol * 4 Silicone compound: Dimethicone having the trade name Xiameter PMX-200 manufactured by Dow Corning, with a viscosity of about 12,500 centistokes. * 5 Silicone compound: available from Momentive, having a viscosity of 10,000 mPa·s and having the following formula (I): (R1) a G 3-a -Si-(-OSiG2) n -(-OSiG b (R1) 2-b )mO-SiG 3-a (R1) a (I) (wherein G is methyl, a is an integer of 1, b is 0, 1, or 2, preferably 1, n is a number of 400 to about 600, m is an integer of 0, and R1 is a group represented by the general formula C q H 2q is a monovalent radical conforming to L, where q is the integer 3 and L is -NH2. * 6 Polyethylene / polypropylene block copolymer: available from Sanyo® Chemical under the trade name Newpol-108. * 7 Polypropylene glycol: available from Sanyo® Chemical under the tradename Newpol PPG-34 L or Newpol PPG-2000 * 8 Methyl bis-(oleylamidoethyl) 2-hydroxyethylammonium methosulfate: available from Kao Chemicals under the trade name Tetranyl CO-40 * 9 Polyethylene glycol: available from BASF under the trade name Pluracare E200

[0153] 2, 3, 4A, and 4B, and the accompanying text below, show results from dispensing tests of different central and outer orifice shapes and sizes in tube-in-tube packages, one tube containing the conditioning composition of Example A (see Table 1) and the other containing the warming composition of Example B (see Table 2). Dispensing tests were conducted by squeezing the outer wall of the tube between the user's thumb and finger approximately one-third of the way up the tube, away from the nozzle (i.e., two-thirds of the way down from the sealed end of the tube).

[0154] When the conditioning and warming compositions are dispensed, it is important that the two-phase composition not only look beautiful in the user's hand, but also have an aesthetic appearance that clearly represents both compositions, providing a visual cue to guide the user to thoroughly mix the compositions before application, thereby activating the heating mechanism and delivering the cleansing benefits.

[0155] The table in Figure 2 shows the dispensed compositions when dispensed through the orifices in Examples 1-4. In Examples 1-4, Example B (the warming composition) was in the inner chamber and Example A (the conditioning composition) was in the outer chamber. As shown in Figure 2, none of the dispensed compositions had the desired appearance. In Examples 1-2, the conditioning composition dispensed through the outer orifice envelops the warming composition dispensed through the central orifice. In these examples, the consumer cannot see both compositions, so it would be counterintuitive to mix the compositions to activate the warming effect and achieve better conditioning benefits.

[0156] Similarly, in Examples 3-4, which have a 25% larger orifice area than Examples 1-2, in some areas the conditioning composition envelops the warming composition, while in other areas the dispensed strands appear to be detached, leaving only the warming composition visible. This appearance is not appealing to consumers because it is inconsistent and does not suggest a high-quality hair treatment composition. Additionally, users may not be able to intuitively mix a composition with this appearance.

[0157] The table in Figure 3 shows the dispensed compositions when dispensed through the orifices in Examples 5-8. In Examples 5-6, Example B (the warming composition, see Table 2) was in the inner chamber and Example A (the conditioning composition, see Table 1) was in the outer chamber. Neither Example 5 nor 6 had an appearance that was acceptable to consumers. Instead, a thick clump was dispensed, and it was difficult to distinguish the conditioning composition from the warming composition.

[0158] Examples 7-8 utilized the same orifices as Examples 5-6, respectively. However, Example A (the conditioning composition, see Table 1) was in the inner chamber and dispensed through the central orifice, while Example B (the warming composition, see Table 2) was in the outer chamber and dispensed through the outer orifice. The dispensed strands in both Examples 7 and 8 had an aesthetic appearance that consumers preferred. As shown in Figure 3, the dispensed compositions of Examples 7-8 had a uniform appearance with smooth strands, with both compositions visible throughout. It was found that when consumers dispensed compositions with an appearance similar to that of Examples 7 or 8, they intuitively mixed the compositions, thereby further activating the warming sensation. In some cases, Examples 7-8 may be less preferred because it may be difficult to fill the chamber with the conditioning composition in the outer chamber and the warming composition in the inner chamber.

[0159] 4A and 4B show the dispensed compositions when dispensed through the orifices in Examples 9-14. In Examples 9-14, Example B (the warming composition, see Table 2) was in the inner chamber and Example A (the conditioning composition, see Table 1) was in the outer chamber. Examples 9-14 all have dispensed compositions in which both the warming and conditioning compositions are visible, which may encourage the consumer to mix the compositions to further activate the warming.

[0160] The appearance of Examples 9 and 10 may be preferred by consumers for the following reasons. First, a ratio of inner orifice area to outer orifice area of ​​1:0.25 (4:1) was found to most uniformly distribute the conditioning and warming compositions from first use to last use. Second, it was determined that a single larger outer orifice may be preferable to multiple (e.g., two or three) smaller orifices, because multiple outer orifices cause the dispensed strands to have an aesthetically unattractive noodle-like appearance. Furthermore, smaller orifices tend to dispense with higher pressures that can pull the conditioner composition away from the warming composition, rather than dispensing as a unified strand. Third, it was found that a slot shape, particularly a curved slot shape, may be preferable to a round, circular, or oval shape, because a round shape also allows for noodle-like dispensing and can pull the warming and conditioner phases apart.

[0161] combination 1. A rinse-off hair treatment product comprising: a. A warming composition and a tube package (1), i. an inner tube (4) comprising an inner tube wall (44) and an inner chamber (41); ii. an outer tube (3) including an outer tube wall (34), an outer chamber (31) formed between said outer tube wall (44) and said inner tube wall (34); iii. one or more outer orifices (53) fluidly connected to said outer chamber (31) by one or more outer nozzle channels (33); iv. one or more central orifices (54) fluidly connected to said inner chamber (41) by one or more inner nozzle channels (43); a tube package in which the ratio of the area of ​​the one or more central orifices (54) to the area of ​​the one or more outer orifices (53) is about 2 to about 6, preferably about 2.5 to about 5.5, more preferably about 3 to about 5, and even more preferably about 3.5 to about 4.5; b. A two-phase hair treatment composition comprising: i. a warming composition (46) having a viscosity; ii. a two-phase hair treatment composition comprising a conditioning composition (36) having a viscosity; and Including, the viscosity of the warming composition (46) is greater than the viscosity of the conditioning composition (36); the inner chamber (41) contains the warming composition (46); the outer chamber (31) contains the conditioning composition (36); A rinse-off treatment product, wherein the warming composition (46) and the conditioning composition (36) are physically separated within the tube package (1). 2. The product of paragraph A, wherein the viscosity of the warming composition is at least 1.25 times, preferably at least 1.4 times, and more preferably 1.5 times, higher than the viscosity of the conditioning composition. 3. The heating composition is heated at 27°C, 950s -1 The conditioning composition has a viscosity of about 190 to about 420 Pa at 27°C, 950 s -1 The product of paragraphs A-B, having a viscosity of about 420 Pa at 4. The product of paragraphs A-C, wherein the weight ratio of the conditioning composition to the warming composition is from about 1 to about 5, preferably from about 1.25 to about 2.25, more preferably from about 1.35 to about 1.9, and even more preferably from about 1.5 to about 1.75. 5. The product of paragraphs A-D, wherein the one or more central orifices (54) comprise one orifice and the one or more outer orifices (53) comprise one orifice. 6. The product of paragraph E, wherein the inner orifice (54) is circular or elliptical. 7. The article of paragraphs E-F, wherein the outer orifice (53) is a slit, preferably a curved slit. 8. The inner orifice (54) is approximately 2 mm 2 ~approx. 9mm 2 , preferably about 3 mm 2 ~about 7mm 2 , more preferably about 4 mm 2 ~about 6mm 2 , and even more preferably about 4.5 mm 2 ~about 5.5mm 2 1. The product described in paragraphs E-G, having an area of 9. The outer orifice (53) is approximately 0.25 mm 2 ~about 5mm 2 , preferably about 0.5 mm 2 ~about 3.5mm 2 , more preferably about 0.75 mm 2 ~about 2.5mm 2 , and even more preferably about 1 mm 2 ~about 1.5mm 2 The product described in paragraphs E-H, having an area of 10. The article of claim AI, wherein the outer tube wall (34) and the inner tube (44) wall comprise a laminate film comprising a polymer and an aluminum barrier. 11. The product of paragraphs AJ, wherein the conditioning composition (36) and the warming composition (46) are different colors. 12. The product of paragraphs A-K, wherein the warming composition (46) comprises an inorganic heat generating agent that generates heat upon mixing with water, and the conditioning composition comprises a cationic surfactant system including a monoalkyl quaternized ammonium salt cationic surfactant, a high melting point fatty compound, and an aqueous carrier. 13. The product of paragraph L, wherein the warming effect of the hair treatment composition is a maximum temperature change of greater than about 13 degrees Celsius after the conditioner composition (36) and warming composition (46) are dispensed. 14. The product of paragraphs L-M, wherein the inorganic heat generating agent is an anhydrous inorganic salt selected from the group consisting of calcium sulfate, magnesium sulfate, aluminum sulfate, calcium chloride, magnesium chloride, calcium oxide, and mixtures thereof. 15. The product of paragraph N, wherein the inorganic heat generating agent is magnesium sulfate. 16. The product of paragraphs l-O, wherein the warming composition (46) further comprises a dialkyl cationic surfactant. 17. The product of paragraphs A-P, wherein the warming composition (46) comprises a gel matrix comprising at least a portion of the cationic surfactant, the high melting point fatty compound, and the aqueous carrier. 18. The product of paragraphs A-Q, wherein the weight ratio of the cationic surfactant to the high melting point fatty compound is within the range of about 1:1 to about 1:4. 19. The product of paragraphs A-R, wherein the molar ratio of water in the warming composition (46) to the inorganic heat generating agent in the conditioner composition (36) is from about 75 to about 0.75. 20. A method of treating hair, comprising: a. providing a rinse-off hair treatment product as described in paragraphs A-S; b. applying pressure to the outer tube wall (34) to dispense the two-phase hair treatment composition as a single strand into the palm of the user's hand; c. mixing the two-phase hair treatment composition, thereby promoting a warming sensation; d. applying the two-phase hair treatment composition to the user's hair and / or scalp; e. rinsing the two-phase hair treatment composition from the user's hair and / or scalp; A method comprising: 21. The method of paragraph T, wherein the weight ratio of dispensed conditioner composition to dispensed warming composition in said strands is from 1 to about 3, preferably from about 1.1 to about 2, and more preferably from about 1.3 to about 1.5.

[0162] Dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."

[0163] All documents cited herein, including any cross-referenced or related patents or patent applications, and any patent applications or patents to which this application claims priority or benefit, are incorporated herein by reference in their entirety, unless expressly stated to the contrary. The citation of any document shall not be deemed to be prior art to any invention disclosed or claimed herein, or to teach, suggest, or disclose any such invention, either alone or in combination with any other reference(s). Furthermore, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.

[0164] While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims

1. 1. A rinse-off hair treatment product comprising: a. A tube package (1), i. an inner tube (4) including an inner tube wall (44) and an inner chamber (41), ii. an outer tube (3) including an outer tube wall (34) and an outer chamber (31) formed between said outer tube wall (34) and said inner tube wall (44), iii. one or more outer orifices (53) fluidly connected to said outer chamber (31) by one or more outer nozzle channels (33); iv. one or more central orifices (54) fluidly connected to said inner chamber (41) by one or more inner nozzle channels (43); Including, a tube package (1) in which the ratio of the area of ​​the one or more central orifices (54) to the area of ​​the one or more outer orifices (53) is between 2 and 6; b. A two-phase hair treatment composition comprising: i. a warming composition (46) having a viscosity; ii. A conditioning composition (36) having a viscosity a two-phase hair treatment composition comprising: Including, the viscosity of the warming composition (46) is at least 1.25 times greater than the viscosity of the conditioning composition (36); the inner chamber (41) contains the warming composition (46); the outer chamber (31) contains the conditioning composition (36); the warming composition (46) and the conditioning composition (36) are physically separated within the tube package (1), and the weight ratio of the conditioning composition (36) to the warming composition (46) is 1.25 to 2.25; Rinse-off treatment product.

2. 10. The product of claim 1, wherein the viscosity of the warming composition is at least 1.5 times higher than the viscosity of the conditioning composition.

3. The warming composition is heated at 27°C for 950 seconds. -1 The conditioning composition has a viscosity of 190 to 420 Pa at 27°C, 950 s -1 3. The product of claim 1 or 2, having a viscosity of 420 Pa at 1000 kJ / min.

4. 4. A product according to any one of claims 1 to 3, wherein the one or more central orifices (54) comprise one orifice and the one or more outer orifices (53) comprise one orifice.

5. The product described in claim 4, wherein the one or more central orifices (54) are circular or elliptical.

6. 6. A product according to claim 4 or 5, wherein said outer orifice (53) is a slit.

7. A product as described in any one of claims 4 to 6, wherein the one or more central orifices (54) have an area of ​​2 mm 2 to 9 mm 2 and the outer orifices (53) have an area of ​​0.25 mm 2 to 5 mm 2.

8. The article of manufacture of any one of claims 1 to 7, wherein the outer tube wall (34) and the inner tube wall (44) comprise a laminate film comprising a polymer and an aluminum barrier.

9. The product of any one of claims 1 to 8, wherein the conditioning composition (36) and the warming composition (46) are different colors.

10. 10. The product of any one of claims 1 to 9, wherein the warming composition (46) comprises an inorganic heat generating agent that generates heat upon mixing with water, and the conditioning composition comprises a cationic surfactant system including a monoalkyl quaternized ammonium salt cationic surfactant, a high melting point fatty compound, and an aqueous carrier.

11. 11. The product of claim 10, wherein the inorganic heat generating agent is an anhydrous inorganic salt selected from the group consisting of calcium sulfate, magnesium sulfate, aluminum sulfate, calcium chloride, magnesium chloride, calcium oxide, and mixtures thereof.

12. 12. The product of claim 10 or 11, wherein the conditioning composition (36) comprises a gel matrix comprising the cationic surfactant, the high melting point fatty compound, and at least a portion of the aqueous carrier.

13. 1. A method of treating hair, comprising: a. providing a rinse-off hair treatment product according to any one of claims 1 to 12; b. applying pressure to the outer tube wall (34) to dispense the two-phase hair treatment composition as a single strand into the palm of the user's hand; c. mixing the two-phase hair treatment composition, thereby promoting a warming sensation; d. applying the two-phase hair treatment composition to the user's hair and / or scalp; e. rinsing the two-phase hair treatment composition from the user's hair and / or scalp; A method comprising:

14. 14. The method of claim 13, wherein the weight ratio of the dispensed conditioning composition to the dispensed warming composition in the strands is 1 to 3.

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