Biphasic wash composition comprising nonionic surfactant

Abstract

The invention is directed to a biphasic wash composition. The composition is substantially free of sulfate-based surfactants. The surfactants used include a nonionic surfactant having an HLB from 6 to 16, anionic surfactant and an amphoteric surfactant. The biphasic wash composition with agitation yields a transient emulsion which is a wash composition that delivers lather and moisturization benefits even when comprising at least 30% by weight oil.

Description

[0001] P0001177COM

[0002] 1

[0003] Biphasic Wash Composition Comprising Nonionic Surfactant

[0004] Field of the Invention

[0005] The present invention is directed to a biphasic wash composition. More particularly, the 5 biphasic wash composition has an aqueous phase and an oil phase where each phase, independently, makes up from 30 to 70% by weight of the total weight of the biphasic wash composition. The aqueous and oil phases are substantially transparent, and surprisingly, yield an opaque and transient emulsion after being agitated and mixed. The resulting transient emulsion, which comprises at least 30% by weight oil phase, unexpectedly produces excellent lather characteristics when used for washing while simultaneously delivering consumer desired moisturizing benefits. Each of the phases and the resulting transient emulsion are suitable to be formulated substantially free of at least one of sulfate- based surfactants, parabens, phthalates, hydantoins, acrylate-based thickeners, dioxanes, dyes, or silicones.

[0006] 15

[0007] Background of the Invention

[0008] Liquid based cleansing compositions, such as shampoos and body washes, are common and enjoyed by many consumers. Such compositions typically have water as the predominant ingredient, and they are often sold in plastic bottles, sachets or tubes. The 20 compositions are conventionally formulated to have components and characteristics that are not only customary but also required by consumers purchasing the cleansing compositions.

[0009] Traditional cleansing wash compositions are water continuous emulsions, typically having materials of uniform physical properties in every direction (isotropic washes) or composed of fine alternating layers of different components in the form of lamellae (lamellar washes). Formulating wash compositions with multiple actives, including both water and oil soluble actives, in a continuous emulsion can be difficult due to many factors such as the compatibility of the actives used, temperature fluctuations, pH of the carrier liquid, water 30 activity and viscosity requirements. Further, consumers find it difficult to differentiate between traditional products that are continuous emulsions and such products, devoid of P0001177COM

[0010] 2

[0011] visual cues, do not offer consumers a brand experience often needed and enjoyed for customer loyalty.

[0012] In addition, traditional water continuous wash products with oil (i.e., even having oil as low 5 as 10% by weight of the wash product), often do not lather well, and are therefore, not desired by consumers that want wash compositions with moisturizing benefits and customary lathering characteristics.

[0013] It is of increasing interest to develop a biphasic wash composition with stable phases that 10 are easy to mix and that can result in a transient emulsion that delivers not only excellent moisturizing benefits but also excellent lather characteristics when used in washing applications.

[0014] The present invention, therefore, is directed to a biphasic wash composition that has an 15 aqueous phase and an oil phase where each phase, independently, makes up from 30 to 70% by weight of the total weight of the biphasic wash composition. The aqueous and oil phases are substantially transparent, and surprisingly, yield an opaque and transient emulsion after being mixed. The resulting transient emulsion, which comprises at least 30% by weight of the oil phase, unexpectedly produces excellent lather characteristics when 20 used for washing. Each of the phases and the resulting transient emulsion are suitable to be formulated substantially free of at least one of sulfate-based surfactants, parabens, phthalates, hydantoins, acrylate-based thickeners, dioxanes, dyes, silicones or any combination thereof.

[0015] 25 Additional information

[0016] Efforts have been disclosed for making wash compositions. In U. S. Patent No. 6,627,209, compositions with polydextrose in combination with sucrose for biphasic liquid formation are described.

[0017] 30 Further efforts have been disclosed for making wash compositions. In U. S. Patent No.

[0018] 7,220,713, wash compositions with low amounts of high molecular weight polymers for enhancing viscosity of aqueous biphasic liquids are described. P0001177COM

[0019] 3

[0020] Additional efforts have been disclosed for making biphasic compositions. In U. S. Patent No. 9,433,564, a biphasic non-emulsion cosmetic composition with a hydrophobic liquid phase and a hydrophilic liquid phase is described.

[0021] 5

[0022] None of the additional information describes a biphasic wash composition as described and claimed herein.

[0023] Summary of the Invention

[0024] In a first aspect, the present invention is directed to a biphasic wash composition comprising: I. an aqueous phase comprising:

[0025] i) a nonionic surfactant having an HLB from 6 to 16, and preferably, from 7 to 16, and most preferably, from 7.5 to 15.5 or from 8 to 15, or a mixture of nonionic surfactants having an average HLB from 6 to 16, and preferably, from 7 to 16, 15 and most preferably, from 7.5 to 15.5 or from 8 to 15;

[0026] ii) anionic surfactant comprising at least one of a taurate, glycinate, glutamate, alkyl sulfonate, alpha-olefin sulfonate, alkyl sulfosuccinate, alkyl ether sulfosuccinate, acyl sarcosinate, saccharide-based surfactant, C10-C20 lactylate, C10-C20 glycolate, isethionate, sulfoacetate, alkyl sulfate, alkyl ether sulfate, or 20 a mixture thereof;

[0027] iii) amphoteric surfactant;

[0028] iv) 10 to 38%, and preferably, 14 to 36%, and most preferably, 15 to 34% (or from 15 to 32% or from 16 to 29% or from 19 to 29% or from 19 to 28% by weight of solvent comprising from 83 to 100% by weight C3to C10diol based on total weight of the solvent;

[0029] v) optionally a thickener;

[0030] vi) 20 to 80%, and preferably, from 22 to 75%, and most preferably, from 24 to 72% (or 26 to 70% or 27 to 68% or 28 to 68%) by weight water;

[0031] vii) from 0.0 to 8% by weight of a C8to C18, and preferably, C10to C16, and most 30 preferably, C12 to C14 fatty acid, fatty alcohol, fatty amide or mixture thereof; and P0001177COM

[0032] 4

[0033] II. an oil phase comprising:

[0034] at least 92.5%, and preferably, 93 to 100% and most preferably, from 94 to 100% by weight oil or from 94 to 99% or from 95 to 98% by weight oil or 100% by weight oil that is clear at a temperature from -21 °C to 35°C, and preferably, from -20°C to 35°C, 5 and most preferably, from -18°C to 35°C or from -17°C to 35°C or from -17 to 30°C or from -16 to 28°C wherein the aqueous phase has a pH from 5.7 to 8,

[0035] and the biphasic wash composition comprises at least 2.5 to 10% by weight anionic surfactant, and from 6.5 to 21.5%, and preferably, from 7 to 21%, and most preferably, from 8 to 20.5% or from 8.2 to 20% or from 9 to 20% or from 10 to 19% or from 10 to 18.5% or from 12 to 18% total surfactant based on total weight of the biphasic composition and further wherein the aqueous phase and the oil phase each, independently, make up from 30 to 70% by weight of the biphasic composition.

[0036] In a second aspect, the present invention is directed to a biphasic composition comprising: 15 I. an aqueous phase comprising:

[0037] a) anionic surfactant having:

[0038] i) a nonionic surfactant having an HLB from 6 to 16 and comprising at least one of C8-16 alkyl glucoside, ethoxylated fatty acid ester, preferably PEG-5 cocoate, polyoxyethylene sorbitan oleate (preferably, Tween 80), sucrose 20 cocoate, or a combination of nonionic surfactants comprising at least one of C8-16 alkyl glucoside, ethoxylated fatty acid, preferably PEG-5 cocoate, PEG-7 cocoate, polyoxyethylene sorbitan oleate (preferably, Tween 80), sucrose cocoate, and at least one nonionic surfactant comprising sorbitan oleate, sorbitan stearate, PEG-100 stearate, sucrose distearate, the combination not comprising 100% nonionic surfactant with an HLB from 6 to 16, but having an average HLB from 6 to 16;

[0039] ii) anionic surfactant comprising at least one of a taurate, glycinate, glutamate, alkyl sulfonate, alpha-olefin sulfonate, alkyl sulfosuccinate, alkyl ether sulfosuccinate, acyl sarcosinate, saccharide-based surfactant, C10-C20 30 lactylate, C10-C20 glycolate, isethionate, sulfoacetate, alkyl sulfate, alkyl ether sulfate or a mixture thereof;

[0040] iii) amphoteric surfactant; P0001177COM

[0041] 5

[0042] iv) 10 to 38%, and preferably, 14 to 36%, and most preferably, 15 to 34% or from 15 to 32% or from 16 to 29% or from 19 to 29% or from 19 to 28% by weight of solvent comprising from 83 to 100% by weight C3to C10diol based on total weight of the solvent;

[0043] 5 v) optionally a thickener;

[0044] vi) 20 to 80%, and preferably, from 22 to 75%, and most preferably, from 24 to 72% (or 26 to 70% or 27 to 68% or 28 to 68%) by weight water; and vii) from 0.0 to 8% by weight of a C8to C18, and preferably, C10to C16, and most preferably, C12to C14fatty acid, fatty alcohol, fatty amide or mixture thereof; and

[0045] II. an oil phase comprising:

[0046] at least 92.5%, and preferably, 93 to 100% and most preferably, from 94 to 100% by weight oil or from 94 to 99% or from 95 to 98% by weight oil or 100% by weight oil that is clear at a temperature from -21 °C to 35°C, and preferably, from -20°C to 35°C, and 15 most preferably, from -18°C to 35°C or from -17°C to 35°C or from -17 to 30°C or from -16 to 28°C,

[0047] wherein the aqueous phase has a pH from 5.7 to 8 and the aqueous phase and the oil phase each, independently, make up from 30 to 70% by weight of the biphasic composition with the provisos that 1) the biphasic composition comprises from 0 to less than 2% by weight of a 20 sulfate based surfactant and comprises less than 75 ppm of a dioxane.

[0048] In a third aspect, the invention is directed to a method for making an end use wash composition comprising the steps of:

[0049] a) combining the aqueous phase and oil phase of the biphasic composition according to the first or second aspect of the invention; and

[0050] b) generating a translucent or opaque transient emulsion, the transient emulsion being an end use wash composition that returns to a biphasic composition when at rest for a period from 3 minutes to 1 day, or from 4 minutes to 5 hours or from 5 minutes to 2 hours or from 5 minutes to 1 hour, or from 5 to 30 minutes, or from 7 to 25 minutes or 30 in 8 to 20 minutes (or 8.5 to 18 minutes or 9.5 to 17 minutes). P0001177COM

[0051] 6

[0052] In a fourth aspect, the invention is directed to the use of an aqueous phase and an oil phase according to the first and second aspects of the invention to produce a biphasic composition that is suitable to agitate to produce an end use wash composition which is a transient emulsion.

[0053] 5

[0054] Biphasic, as used herein to describe the composition of the present invention, means a composition having two phases or sub-compositions, and particularly, a distinct aqueous and an oil phase. Transient emulsion means a temporary emulsion made by moderately (including by hand) mixing, agitating, shearing, shaking or swirling (or the like) the described aqueous and oil phases (i.e., the biphasic composition for 5 seconds to 3.5 minutes, and preferably, from 10 seconds to 2.5 minutes, and most preferably, from 20 seconds to 1.5 minutes or from 30 seconds to 1 minute, where moderately means not requiring a mechanical device) whereby the transient emulsion is water continuous and opaque and reverts to a biphasic composition in 1 day or less. Substantially transparent, as used herein, 15 means at least 80%, or at least 85% or at least 90% or 90 to 99% or 90 to 97% or 90 to 95% of the light in contact with a phase (e.g., the aqueous and oil phases of the invention) passes through. In an embodiment of the invention, 98 to 100% or 100% of light passes through the aqueous phase and / or oil phase of the invention. Therefore, the phases can be clear.

[0055] 20

[0056] Aqueous phase means a phase having at least 30% by weight to 80% by weight water based on total weight of the aqueous phase where such phase is not miscible with an oil phase. Oil phase as used herein means a phase having at least 92.5% by weight oil and not miscible with a water phase. Skin, as used herein, is meant to include skin on the arms (including underarms), face, feet, neck, chest, hands, legs, buttocks, nails and scalp. Polyol means 3 or more hydroxy groups such as a triol, tetraol or hexol and not a diol used as solvent. The transient emulsion is an end use wash composition that is creamy, not sticky or draggy, and typically mimics a lotion in consistency. Such an end use wash composition surprisingly provides excellent lather and moisturizing attributes when used. The end use 30 composition of the invention is translucent or opaque, meaning less than 50% (or less than 30% or less than 25% or less than 20% or from 0 to 15% or 0.0%) of light passes through the end use composition (i.e., transient emulsion). The end use composition is P0001177COM

[0057] 7

[0058] homogeneous prior to the phases it is made from starting to separate, free of syneresis and precipitate / particle formation that can lead to a grainy sensation while using. Typically, the aqueous phase and oil phase of the present invention each independently have a viscosity from 25 to 7,000 cps (or from 50 to 5,000 cps or from 60 to 4,000 cps, or from 70 to 3,000 5 cps, where 1 Pa-s is equal to 1000 cps). The aqueous phase may optionally comprise a thickener, as later defined, including those classified as a polymer with a cellulosic backbone. Thickener is desired to control and increase the time it takes for the transient emulsion to revert to being biphasic. The end use composition is one suitable to be wiped or washed off, and preferably, washed off with water. The end use composition can be a home care cleaning composition but is preferably a shampoo, make-up remover, facial wash, hand wash or personal care liquid body wash. In an embodiment of the invention, the end use composition can have a viscosity from at least 50 to 235,000 cps, and preferably, from 100 to 225,000 cps, and most preferably, from 200 to 210,000 cps (or from 500 to 205,000 cps, or from 2,000 to 200,000 cps, or from 4,000 to 180,000 cps or from 15 10,000 to 165,000 cps) where one (1) cps equals one (1) mPa-s. The end use composition may optionally comprise medicinal or therapeutic agents, but preferably, is a wash which is cosmetic and non-therapeutic such that the wash removes water soluble and water insoluble soils. In one embodiment of the invention, the end use composition is a home care composition like a table-top or toilet cleaning composition. In another embodiment, the 20 end use composition is a shampoo composition. In still another embodiment, the end use composition is a personal wash composition, and therefore, a liquid body wash. As hereinafter described, the end use composition of the present invention may optionally comprise skin benefit ingredients added thereto such as emollients, vitamins and / or derivatives thereof, resorcinols, retinoic acid precursors, colorants, moisturizers, sunscreens, mixtures thereof or the like. The skin benefit ingredients (or agents) may be water or oil soluble. If used, oil soluble skin benefit agents typically make up to 3.5% by weight of the oil phase whereby water-soluble skin benefit agents, when used, typically make up to 10% by weight of the aqueous phase of the present invention. The aqueous phase and end use composition typically have a pH greater than 5.5 to 8.5, preferably over 30 5.85 to 7.5, and most preferably, from 5.9 to 7 or from 5.9 to 6.9 or from 5.9 to 6.8 or from 6 to 6.7 or from 6 to 6.6. Viscosity, unless noted otherwise, is taken with a Discovery HR-2 Rheometer using sand blasted plates with a 1000-micron gap and having a shear rate of P0001177COM

[0059] 8

[0060] 0.1-15 s’1. Viscosity is measured at 25°C. Stable, as used herein, means not displaying sensorial or visible color change for at least 2 months, and preferably, 3 to 4 months when stored at 25°C. As used herein, “substantially free of” means less than 2.0% by weight of the end use composition (i.e., transient emulsion), and preferably, less than 1.5% by weight, 5 and most preferably, less than 1.0% by weight or less than 0.85% or less than 0.5% or less than 0.25% or less than 0.15% or less than 0.1% or less than 0.05% or 0.0% (none) based on total weight of the of the end use composition. In the case of dioxanes, like 1,4-dioxane, substantially free of means less than 75 ppm, and preferably, less than 50 ppm, and most preferably, less than 25 ppm or less than 5 ppm or from 0.00001 to 2 ppm or less than 1 ppm or 0.0 (no) ppm dioxane based on total weight of dioxane in the end use composition. For the avoidance of doubt, transient emulsion, end use composition, end use wash composition and liquid personal wash composition are meant to be the same.

[0061] The term comprising is meant to encompass the terms consisting essentially of and 15 consisting of. For the avoidance of doubt, and for illustration, the end use composition of this invention comprising surfactant, water and active is meant to include a composition consisting essentially of the same and a composition consisting of the same. All ranges defined are meant to include all ranges subsumed therein. Except in the operating comparative examples, or where otherwise explicitly indicated, all numbers in this 20 description indicating amounts or ratios of materials or conditions and / or physical properties of materials and / or use are to be understood as modified by the word “about”. The disclosure, as found herein, is to be considered to cover all embodiments as found in the claims as being multiply dependent upon each other irrespective of the fact that claims may be found without multiple dependency or redundancy.

[0062] As to the combination of nonionic surfactants, the combination will have an average HLB from 6 to 16, and preferably, from 7 to 16, and most preferably, from 7.5 to 15.5 or from 8 to 15 but can include nonionic surfactants that have an HLB above or below 6 to 16 (i.e., in combination with nonionic surfactants that have an HLB from 6 to16) or both above and 30 below 6 to 16 (and optionally in combination with nonionic surfactants that have an HLB from 6 to16) as long as the average HLB of the combination of nonionic surfactants selected is 6 to 16. Illustrative examples include sorbitan oleate, i.e., Span 80 having an HLB under P0001177COM

[0063] 9

[0064] 6, and polyoxyethylene (20) sorbitan laurate, i.e., Tween 20 having an HLB over 16. HLB is well known and understood to mean the Hydrophobic-Lipophilic Balance, the balance of the size and strength of the hydrophilic and lipophilic moieties of surfactant molecules. Combination, as used herein, means a mixture but is used to describe a mixture of nonionic 5 surfactants not having 100% of their HLB from 6 to 16.

[0065] Detailed Description of the Preferred Embodiments

[0066] As to the nonionic surfactants suitable for use and having an HLB from 6 to 16, and preferably, from 7 to 16, and most preferably, from 7.5 to 15.5 or from 8 to 15, illustrative and nonlimiting examples of such surfactants include C8-16 alkyl glucosides, ethoxylated fatty acids, preferably PEG-5 cocoate, Peg-7 cocoate, polyoxyethylene sorbitan oleate (preferably, Tween 80), sucrose cocoate, or a mixture thereof. In an embodiment of the invention, the alkyl glucoside included comprises, caprylyl / capryl glucoside, decyl glucoside, lauryl glucoside, coco glucoside ora mixture thereof. In another embodiment, the ethoxylated fatty 15 acid included comprises PEG-5 cocoate, PEG-7 cocoate or a mixture thereof.

[0067] Additional nonionic surfactants suitable for optional use and that have an HLB either above or below 6 to 16 but that could be used to make the combination, as defined, of nonionic surfactants to create an overall surfactant mixture / combination having an HLB within the 20 range of 6 to 16 (and any of the above-identified HLB ranges) include sorbitan oleate, sorbitan stearate, PEG-100 stearate, sucrose distearate or a mixture thereof.

[0068] As to the anionic surfactants suitable for use, these include acyl taurates. Illustrative examples of the taurate surfactants that may be used include those which are acylamides of taurine or N-methyltaurine, and salts thereof. For example, taurates suitable for use are acyl taurates represented by the general formulae:

[0069] R'(C=O)N(R'')CH2CH2SO3-M+(I),

[0070] 30 where R' is C5to C29, more particularly, C5to C23alkyl, R'' is hydrogen or methyl, and M is hydrogen, ammonium, alkali metal cation, a lower C1to C4, alkanol ammonium cation and / or a basic amino acid cation. In an embodiment of the invention, M includes sodium, P0001177COM

[0071] 10

[0072] ammonium and / or potassium ions. In one embodiment, R' is C5to C17alkyl. In another embodiment at least half of the R' groups are C7-C18alkyl. In still another embodiment at least half of the R' groups are C9to C15alkyl or C9to C13alkyl. R' may be saturated or unsaturated. In yet another embodiment R'' is methyl. For the avoidance of doubt, overall 5 alkyl chain lengths described herein will include the carbonyl carbon.

[0073] Nonlimiting examples of the acyl taurates that may be used in the invention include taurates commonly known as sodium methyl lauroyl taurate, potassium methyl lauroyl taurate, sodium methyl myristoyl taurate, potassium methyl myristoyl taurate, ammonium methyl myristoyl taurate, sodium methyl cocoyl taurate, potassium methyl cocoyl taurate, ammonium methyl cocoyl taurate, sodium methyl oleoyl taurate, potassium methyl oleoyl taurate, ammonium methyl oleoyl taurate, sodium lauroyl taurate, potassium lauroyl taurate, ammonium myristoyl taurate, sodium cocoyl taurate, potassium oleoyl taurate, mixtures thereof or the like. In an embodiment of the invention, the taurate used in the 15 present invention is sodium methyl lauroyl taurate.

[0074] As to the acyl glycinates (and salts thereof) suitable for use, these include C8to C20, and preferably, C10to C18and most preferably, C12to C16or C12to C14acyl glycinates. Illustrative and nonlimiting examples of the glycinates that may be used include sodium lauroyl 20 glycinate, sodium myristoyl glycinate, sodium cocoyl glycinate, potassium lauroyl glycinate, sodium myristoyl glycinate, potassium cocoyl glycinate, or a mixture thereof. In an embodiment of the invention, sodium cocoyl glycinate, potassium cocoyl glycinate, or a mixture thereof are often preferred when acyl glycinates are used. In another embodiment, sodium or potassium lauroyl glycinate or both may also be used in the compositions of the invention. In even another embodiment of the invention, the acyl portion of the glycinates that may be selected for use is preferably saturated but suitable to be unsaturated with no more than 2 double bonds, including conjugated double bonds.

[0075] Acyl glutamates (and salts thereof) suitable for use include C8to C29, and preferably, C10to C18and most preferably, C12to C16or C12to C14acyl glutamates where the acyl portion is preferably saturated, but as is the case with glycinates, suitable to be unsaturated with no more than 2 double bonds, including conjugated double bonds. Illustrative yet nonlimiting P0001177COM

[0076] 11

[0077] examples of the glutamates that may be used include sodium capryloyl glutamate, sodium lauroyl glutamate, sodium myristoyl glutamate, sodium cocoyl glutamate, sodium stearoyl glutamate, sodium oleyl glutamate, disodium oleyl glutamate, dipotassium capryloyl glutamate, dipotassium undecylenoyl glutamate, disodium capryloyl glutamate, disodium 5 cocoyl glutamate, disodium lauroyl glutamate, disodium stearoyl glutamate, disodium undecylenoyl glutamate, potassium capryloyl glutamate, potassium cocoyl glutamate, potassium lauroyl glutamate, potassium myristoyl glutamate, potassium stearoyl glutamate, potassium oleyl glutamate, potassium undecylenoyl glutamate, sodium olivoyl glutamate, sodium palmitoyl glutamate, sodium undecylenoyl glutamate, disodium cocoyl glutamate, ora mixture thereof. In an embodiment of the invention, sodium lauroyl glutamate, sodium cocoyl glutamate, sodium stearoyl glutamate, or a mixture thereof is preferred. In another embodiment, if a glutamate is used, sodium myristoyl and / or sodium cocoyl glutamate may often be desired.

[0078] 15 As to the anionic sulfonates and their salts that may be selected for use, the same can include alkyl sulfonates, alkyl glyceryl ether sulfonates, alkyl alpha olefin sulfonates (hydrocarbons being an alkene, CxH^, with a double bond in the alpha position), ora mixture thereof. Typically, the alkyl portion is from C8-C24, and preferably, from C10-C20, and more preferably, from C12 to Ci8or from C12 to Ci6or from C14 to Ci6.

[0079] 20

[0080] Suitable succinates (including their salts) that may optionally be included are those with a C10 to C20 hydrophobic portion. Illustrative examples include disodium oleamido MIPA sulfosuccinate, disodium oleamido MEA sulfosuccinate, disodium lauryl sulfosuccinate, disodium laureth sulfosuccinate, diammonium lauryl sulfosuccinate, diammonium laureth sulfosuccinate, dioctyl sodium sulfosuccinate, disodium oleamide MEA sulfosuccinate, sodium dialkyl sulfosuccinate, or a mixture thereof. For the avoidance of doubt, MIPA and MEA refer to monoisopropanolamine and monoethanolamine, respectively.

[0081] In an embodiment of the invention, at least one anionic surfactant that may be used is 30 selected from sodium lauryl sulfosuccinate, sodium myristoyl sulfosuccinate, sodium cocoyl sulfosuccinate, sodium stearoyl sulfosuccinate, sodium laureth sulfosuccinate, sodium P0001177COM

[0082] 12

[0083] pareth sulfosuccinate, disodium laureth sulfosuccinate, disodium lauryl sulfosuccinate, diethylhexyl sodium sulfosuccinate, and a mixture thereof.

[0084] As to the sulfoacetates suitable for optional use, these include C-IQ.-IS, preferably C- e, and 5 most preferably, a Cms sulfoacetates like the sodium (or potassium) lauryl sulfoacetate, sodium (or potassium) myristyl sulfoacetate, sodium (or potassium) palmityl sulfoacetate, or a mixture thereof. In an embodiment of the invention, sodium lauryl sulfoacetate is the sulfoacetate preferred.

[0085] 10 The acyl sarcosinates suitable for use include those having a C8-C20or CIQ-C-I8or C-i2-C-i8acyl group. Illustrative examples of the sarcosinates that may optional be used include sodium lauroyl sarcosinate, sodium cocoyl sarcosinate, or a mixture thereof.

[0086] As to the anionic surfactant which is a saccharide-based surfactant suitable for use, the same is typically a mono-, di- or oligosaccharide (sugar) esterified with a moiety having a carboxylic acid group.

[0087] In an embodiment of the invention, the anionic saccharide-based surfactant used has the formula:

[0088]

[0089] 20

[0090] II P0001177COM

[0091] 13

[0092] where:

[0093] R is a C10-C20 alkyl, and preferably, a C12-C18 alkyl, and most preferably, a C14-C16 alkyl; m is 0 or 1 and n is 1, 2, or 3;

[0094] each R1and R2is independently a C1-C3 alkyl, H, or OH wherein both R1groups are not 5 simultaneously OH and both R2groups are not simultaneously OH and further wherein when m is zero preferably one R1group and one R2group is OH; and

[0095] X+is a counter ion that can include K+, Na+, NH4+or a mixture thereof.

[0096] In an embodiment of the invention, the anionic saccharide-based surfactant used is disodium cocoglucoside citrate, disodium cocoglucoside tartrate or a mixture thereof. The same are commercially available from suppliers like Lamberti Eucarol® brand name.

[0097] As to the C10-C20 lactylate which may optionally be used as anionic surfactant alone or in a mixture with other anionic surfactants, the same can be a mono- or polylactyl or mixture 15 thereof as lactic acid can, for example, undergo self-esterification. Therefore, C10-C20 lactylate suitable for use includes lactylic esters of fatty acids represented by the formula:

[0098]

[0099] where Rais aC9to C19hydrocarbon, each Rbis independently hydrogen ora C1-3 alkyl, u is an integer from 0 to 3 and Y+ is a counter ion that can include K+, Na+, NH4+or a mixture thereof.

[0100] In an embodiment of the invention, the C10-C20 lactylate comprises 40 to 100%, and 25 preferably, 50 to 95%, and most preferably, 60 to 90% (or 65 to 85% or 70 to 80%) by weight of a Ci2-C2o(orCi4-C2oorCi6-C2oor Ci6-Ci8) group (i.e., acyl portion) based on total weight of P0001177COM

[0101] 14

[0102] lactylate in the compositions. The preferred lactylates, when used, are Ci4-C2o lactylates, and more preferably, Ci6-Ci8lactylates like palmitoyl-1 -lactylate, stearoyl-1 -lactylate, or mixtures thereof. Polylactyls (typically numbering from two to three lactyl groups) are also suitable for use, like palmitoyl-2-lactylate, stearoyl-2-lactylate, or mixtures thereof. In yet 5 another embodiment of the invention, sodium lauroyl lactylate, sodium stearoyl lactylate or mixtures thereof are preferred. Fatty acid sources are typically vegetable, soy, coconut, and palm oil. In an embodiment of the invention, less than 75%, and preferably, less than 45%, and most preferably, less than 30% by weight of the lactylate used based on total weight of lactylate is derived from palm kernel oil. In another embodiment of the invention, from 0.001 to 40%, and preferably, from 0.01 to 35%, and most preferably, from 1 to 30% by weight of total lactylate used in the compositions is derived from palm kernel oil. In even another embodiment, the lactylate used is sodium stearoyl lactylate where less than 5% by weight (or 0.0% by weight) of the lactylate used is derived from palm kernel oil.

[0103] 15 In still another embodiment of the invention, anionic surfactant suitable for optional use is one where the Rbgroups are hydrogen and the anionic represented by formula (III) is a C10-C20 glycolate.

[0104] As noted, the aqueous phase can also optionally comprise isethionates. Such surfactants 20 include C6-C2o acyl isethionates. These surfactants (esters) are prepared by a reaction between alkali metal isethionate with mixed aliphatic fatty acids having from 6 to 20 carbon atoms and an iodine value of less than 20. Often at least 75% of the mixed fatty acids have from 12 to 18 carbon atoms and up to 25% can have 6 to 10 carbon atoms. The acyl isethionate suitable for use may be an alkoxylated isethionate such as is described in llardi et al., U. S. Pat. No. 5,393,466, entitled " Fatty Acid Esters of Polyalkoxylated Isethionic acid”. The isethionate surfactants can include the reaction product of fatty acids esterified with isethionic acid and neutralized with a base like sodium or potassium hydroxide. The acyl isethionate surfactant can have the general formula:

[0105] 30 R3C-O(O)-C(X) H-C(Y) H-(OCH2-CH2)V-SO3- M (IV), P0001177COM

[0106] 15

[0107] where R3is an alkyl group having 5 to 19 carbons, v is an integer from 0 to 4 (1 to 4 for the alkoxylated option), X and Y are each independently hydrogen or an alkyl group having 1 to 4 carbons and M is as previously defined.

[0108] 5 It is also within the scope of the invention, when v is 0, for either the carbon alpha or beta to the sulfonate group to have one C-M alkyl substitution in place of hydrogen, preferably a C1-3 alkyl substitution and most preferably, a methyl group. It is also within the scope of the invention for R3to have a degree of unsaturation and typically no more than 2, and more preferably, no more than 1 double bond.

[0109] Illustrative examples of the isethionates suitable for use in present invention include sodium capryl isethionate, sodium caproylyl isethionate, sodium capryl methyl isethionate, sodium caproylyl methyl isethionate, sodium cocoyl isethionate, sodium cocoyl methyl isethionate, sodium lauroyl isethionate, sodium lauroyl methyl isethionate, potassium lauroyl 15 isethionate, potassium lauroyl methyl isethionate, sodium oleoyl isethionate, sodium oleoyl methyl isethionate, sodium stearoyl isethionate, sodium stearoyl methyl isethionate, sodium myristoyl isethionate, sodium myristoyl methyl isethionate, sodium palmitoyl isethionate, sodium palmitoyl methyl isethionate, ammonium cocoyl isethionate, ammonium cocoyl methyl isethionate, or mixtures thereof. In an embodiment of the invention, the isethionate 20 used in the present invention is sodium lauroyl isethionate sodium cocoyl isethionate, or a mixture thereof.

[0110] In still another embodiment of the invention, R3can be branched and comprise from 1 to 3 carbon atoms with a Ci_6alkyl, Ci_6alkoxy or both as a branch chain where the length of R3remains 5 to 19 carbon atoms. In an embodiment of the invention, the isethionate used has a methyl branch on its alpha or beta carbon. In still another embodiment, the alpha carbon is substituted with 2 methyl groups (i.e., is a dimethyl alpha carbon).

[0111] As noted herein, the end use compositions of the present invention are optionally, and 30 preferably, substantially free of sulfate-based surfactants. In an embodiment of the invention sulfate-based surfactant may be used at an amount of less than 2% by weight of the total weight of the end use composition. If optionally included, the sulfate-based P0001177COM

[0112] 16

[0113] surfactants can include C8-C20alkyl sulfates and / or C8-C20alkyl ether sulfates. When selected, sodium lauryl sulfate, sodium lauryl ether sulfate, ammonium lauryl sulfate, ammonium lauryl ether sulfate, sodium pareth sulfate or a mixture thereof may be selected for use. As to those sulfate-based surfactants classified as alkyl ether sulfates, the ethoxy 5 portion is typically from 1 to 3 ethoxy units in length, and often, from 2 to 3 ethoxy units in length.

[0114] In yet another embodiment, the anionic surfactant used in the composition can include sodium methyl 2-sulfolaurate or disodium 2-sulfolaurate or both.

[0115] Mixtures of any of the described anionic surfactants may be used with the nonionic surfactants described herein, and the cation portion of their salts can include sodium, potassium and ammonium ions or mixtures thereof.

[0116] 15 The aqueous phase of the biphasic wash composition typically comprises from 6 to 24%, and preferably, from 8 to 22%, and most preferably, from 9 to 20% or from 10 to 19% or from 10 to 18% or from 11 to 18% or from 12 to 16% by weight nonionic surfactant. The aqueous phase typically comprises from 4 to 15%, and preferably, from 5 to 14%, and most preferably, from 6 to 13% or from 7 to 12% or from 8 to 11% by weight anionic surfactant.

[0117] 20

[0118] In an embodiment of the invention, the weight ratio of nonionic surfactant to anionic surfactant used in the biphasic wash composition (and therefore, in the end use transient emulsion or composition) is 2.5:1 to 1:1 or from 2:1 to 1.1:1 or from 1.8:1 to 1.2:1 or from 1.7:1 to 1.3:1 or 1:1.

[0119] Amphoteric surfactants may be included in the compositions. Illustrative examples include cocoyl amine oxide, lauramine oxide, myristamine oxide, palmitamine oxide, stearamine oxide, oleamine oxide, cocamidopropyl amine oxide, lauryl amidopropyl amine oxide, myristyl amidopropyl amine oxide, palmityl amidopropyl amine oxide, stearyl amidopropyl amine 30 oxide, oleamidopropyl amine oxide, or a mixture thereof. P0001177COM

[0120] 17

[0121] Additional amphoteric surfactants suitable for optional use include imidazolines, sodium acyl amphoacetates, sodium acyl amphopropionates, disodium acyl amphodiacetates and disodium acyl amphodipropionates where the acyl (i.e., alkanoyl group) can comprise a C7- Cis alkyl portion. Illustrative examples of the amphoteric surfactants suitable for use include 5 sodium lauroamphoacetate, sodium cocoamphoacetate, sodium lauroamphoacetate, sodium cocoamphoacetate, cocamphodipropionate, ora mixture thereof.

[0122] In an embodiment of the invention, when used, the amphoteric selected can optionally be at least 80%, and preferably, at least 85%, and most preferably, at least 90% (or 90 to 100% or 94 to 100% or 94 to 98% or 100%) by weight amine oxide whereby such amine oxide can have the formula: Rx-N+(Ry)2-O- where Rxis a C8-2o alkyl, and preferably, a C10-18 alkyl, and most preferably, a C12-18 alkyl (or C12-16 alkyl) and Ryis H or a Ci_6alkyl or C1-4 alkyl or 'C1-3 alkyl or C1-2 alkyl or -CH3. In another embodiment of the invention, the preferred amine oxide selected is cocoyl amine oxide, lauramine oxide, myristamine oxide, palmitamine oxide, 15 stearamine oxide, oleamine oxide, or a mixture thereof.

[0123] Still additional amphoteric surfactants, including those which may be zwitterionic at the requisite pH, suitable for inclusion in the compositions of the present invention include those with at least one acid group. The acid group may be a carboxylic or a sulphonic acid group.

[0124] 20 They often include quaternary nitrogen, and therefore, can be quaternary amino acids.

[0125] Such surfactants should generally include an alkyl or alkenyl group of 6 to 18 carbon atoms and generally comply with the overall structural formula:

[0126] R4„[„c(O)-NH(CH2)q-]r-N+-(R5~)(R6)A— B (V)

[0127] where R4is alkyl or alkenyl of 5 to 19 carbon atoms; R5and R6are each independently alkyl, hydroxyalkyl or carboxyalkyl of 1 to 3 carbon atoms; q is 2 to 4; r is 0 or 1; A is an alkylene of 1 to 3 carbon atoms optionally substituted with hydroxyl, whereby B is -CO2- or-SO3-

[0128] 30 Such additional amphoteric surfactants that may be used in the present invention and within the above general formula include simple betaines of formula: P0001177COM

[0129] 18

[0130] R3-N+-(R5)(R6)CH2CO2- (V)

[0131] and amido betaines of formula:

[0132] 5 R4-CONH(CH2)t— N+-(R5)(R6)CH2CO2- (VI)

[0133] where t is 2 or 3.

[0134] In both formulae R4, R5and R6are as previously defined. R6would, in particular, include a mixture of C7to Ci7alkyl groups and R7and R8are preferably methyl or ethyl groups, most preferably methyl groups. R3is C6to Ci8alkyl.

[0135] A further option is that the amphoteric surfactant is a sulphobetaine of the formula:

[0136] 15 R3-N+-(R5)(R6)(CH2)3SO3- (VII)

[0137] or

[0138] R4-CONH(CH2)U-N+-(R5)(R6)(CH2)3SO3- (VIII)

[0139] 20

[0140] where u is 2 or 3, or variants of these in which -(CH2)3SO3_is replaced by - CH2C(OH)(H)CH2SO3-.

[0141] In these formulae (VII and VIII), R3’, R4, R5and R6are as previously defined.

[0142] Illustrative examples of additional amphoteric surfactants suitable for use include betaines like lauryl betaine, laurylhydroxy sulfobetaine, lauryldimethyl betaine, coco betaine, cocoamidopropylhydroxylsulfo betaine, cocodimethyl carboxymethyl betaine, cocamidopropyl betaine, laurylamidopropyl betaine, cocodimethyl carboxymethyl betaine, 30 mixtures thereof or the like. P0001177COM

[0143] 19

[0144] Even additional amphoteric surfactants suitable for use include lauryl hydroxysultaine, cocamidopropyl hydroxy sultaine, or mixtures thereof. Such surfactants are made commercially available, and it is within the scope of the invention to employ mixtures of the aforementioned surfactants.

[0145] 5

[0146] Still other amphoteric surfactants that may be used in the present compositions are C16-20 amidopropyl hydroxysultaines where the C16-20 amidopropyl hydroxysultaine is preferably palmityl, stearyl and / or oleyl amidopropyl hydroxysultaine, and most preferably, palmityl amidopropyl hydroxysultaine. Other suitable zwitterionic surfactants suitable for optional use include behenyl betaine, capryl / capramidopropyl betaine, stearyl betaine, myristyl hydroxysultaine, palmityl hrdroxysultaine, or a mixture thereof. In a preferred embodiment, the amphotric surfactant used in the biphasic wash composition of this invention is cocamidopropyl betaine.

[0147] 15 Amphoteric surfactant typically makes up from 3 to 25%, and preferably, from 4 to 22%, and most preferably, from 4.4 to 20% (or from 2.8 to 18% or from 5 to 17% or from 9 to 17%) by weight of the aqueous phase.

[0148] Amphoteric surfactant typically makes up from 1.5 to 12%, and preferably, from 2 to 11%, 20 and most preferably, from 2.2 to 10% (or from 2.4 to 9% or from 2.5 to 8.5% or from 4.5 to 8.5%) by weight of the biphasic composition.

[0149] In an embodiment of the invention, the weight ratio of total weight of amphoteric surfactant to anionic surfactant used in the present invention is 1:1.7 to 1.7:1 or from 1.5:1 to 1:1.5 or from 1.3:1 to 1:1.3 or from 1.2:1 to 1:1.2 or 1:1.

[0150] In another embodiment of the invention, less than 95%, and preferably, less than 90%, and most preferably, less than 85% (or less than 80% or from 5 to 22% or from 6 to 20% or from 10 to 15%) by weight of the hydrophobic portion of the surfactants used in the present 30 invention are recovered from petroleum, palm oil, palm kernel oil and / or coconut oil. In still another embodiment, from 90 to 100% by weight of the hydrophobic portion of at least one P0001177COM

[0151] 20

[0152] surfactant used herein is not recovered from petroleum, palm oil, palm kernel oil and / or coconut oil.

[0153] In even another embodiment of the invention, from 0.0 to 15% or from 0.05 to 12% or from 5 0.5 to 10% by weight of any of the surfactants used in the compositions of the invention may have hydrophobic portion with carbon recovered from purple carbon, and that is, carbon recovered from carbon dioxide waste gas via biotechnology that utilizes microbial gas fermentation.

[0154] In yet another embodiment, at least 10% or at least 20%, and preferably, at least 30%, and most preferably, from 40 to 100%, or from 50 to 100% (or from 15 to 35% or 10 to 20%) by weight of the surfactants have hydrophobic chain recovered from triglycerides such as those recovered from jojoba, avocado, olive, and nuts, as well as from seed oil (e.g., sunflower, linseed, rapeseed), and especially, from soy bean oil.

[0155] 15

[0156] The solvent suitable for use in the compositions of the present invention are limited only to the extent such solvent may be included in topical wash compositions. Such a solvent comprises from 83 to 100% by weight C3to C10diol (or glycol), and preferably, from 85 to 100%, and most preferably, from 90 to 100% (or from 93 to 97% or from 93 to 98% or from 20 94 to 99.5% or 100%) by weight C3to C10diol whereby the biphasic composition comprises from 6 to 18%, and preferably, 7 to 17%, and most preferably, 7 to 16% (or from 8 to 15% or from 8.5 to 14.5% or from 9 to 14% or from 10 to 13% ) by weight of solvent. Illustrative examples of the solvents suitable for use include caprylyl glycol, propylene glycol, dipropylene glycol, polypropylene glycol (e.g., PPG-9), polyethylene glycol, butylene glycol, pentylene glycol, hexylene glycol, octylene glycol, 1,2-propanediol, 1,2-butanediol, 1,2- pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-octandiol, or mixtures thereof. In an embodiment of the invention, the solvent used can be a mixture of propylene glycol and hexylene glycol at a weight ratio from 1:6 to 6: 1 or from 1:5 to 5: 1 or from 1:4 to 4: 1 or from 1:3 to 3: 1 or from 1:2 to 2: 1. In another embodiment, the solvent used is at least 80% or at 30 least 90% or from 90 to 100% or by weight hexylene glycol. In yet another embodiment, the solvent is hexylene glycol in a mixture where the mixture comprises 0.4 to 5% or from 0.8 to 4% or from 1 to 3.5% or from 1.5 to 3% or from 1.7 to 2.4% by weight caprylyl glycol. P0001177COM

[0157] 21

[0158] Conventional humectants may optionally be included as additives in the compositions of the present invention to assist in moisturizing skin when the resulting end use compositions (i.e., transient emulsions) are made by combining the aqueous and oil phases. These 5 materials are generally polyhydric alcohol type materials (polyols) that include glycerol (i.e., glycerine or glycerin), sorbitol, hydroxypropyl sorbitol, ethoxylated glycerol, propoxylated glycerol, and mixtures thereof. Most preferred is glycerin, sorbitol, ora mixture thereof. The amount of humectant employed may range anywhere from 0.0 to less than 7% by weight of the total weight of the aqueous phase. Often, and when used, humectant makes up from 0.1 to 6%, and preferably, from 0.2 to 5.25%, and most preferably, from 0.2 to 5% or from 0.3 to less than 5% or from 0.3 to 2.5% by weight (or from 0.2 to 1.5% by weight) of the total weight of the aqueous phase.

[0159] As to thickener or thickening agent suitable for optional use in the aqueous phase of the 15 present invention, these materials are used particularly, as noted, to adjust the time it takes for the transient emulsion to revert to an aqueous and oil phase. Typically, useful are those thickeners generally classified as polysaccharides. Examples include fibers, starches, natural / synthetic gums and cellulosics. Representative of the starches are chemically modified starches such as sodium hydroxypropyl starch phosphate and aluminum starch 20 octenylsuccinate. Tapioca starch may often be selected, as can maltodextrin. Suitable gums include xanthan, sclerotium, pectin, karaya, arabic, agar, guar (including Acacia Senegal guar), carrageenan, alginate, and combinations thereof. Suitable cellulosics include hydroxypropyl cellulose, hydroxypropyl methylcellulose, ethylcellulose, sodium carboxy methylcellulose (cellulose gum / carboxymethyl cellulose) and cellulose (e.g. cellulose microfibrils, cellulose nanocrystals or microcrystalline cellulose). Sources of cellulose microfibrils include secondary cell wall materials (e.g. wood pulp, cotton), bacterial cellulose, and primary cell wall materials. Preferably and when used the source of primary cell wall material is selected from the parenchymal tissue of fruits, roots, bulbs, tubers, seeds, leaves, and combinations thereof; and more preferably, is selected from citrus fruit, 30 tomato fruit, peach fruit, pumpkin fruit, kiwi fruit, apple fruit, mango fruit, sugar beet, beet root, turnip, parsnip, maize, oat, wheat, peas, or combinations thereof. Even more preferably when used, cell wall material is selected from citrus fruit, tomato fruit, and P0001177COM

[0160] 22

[0161] combinations thereof. An often-preferred source of primary cell wall material is parenchymal tissue from citrus fruit. Citrus fibers, such as those made available by Herbacel® as AQ Plus can also be used as a source for cellulose microfibrils. The cellulose sources can be surface modified by any of the known methods including those described in 5 Colloidal Polymer Science, Kalia et al., “Nanofibrillated cellulose: surface modification and potential applications” (2014), Vol 292, Pages 5-31.

[0162] Still other thickening agents that may optionally be used include esters of polyalkoxylated polyols and fatty acids. Examples of such agents include PEG 18 glyceryloleate / cocoate, polyethylene glycol 6000 distearate, INCI name of PEG-150 distearate; PEG 120 methyl glucose dioleate and PEG 120 methylglucose trioleate (Glucomate™ DOE-120 and Glucomate™ VLT made available by Lubrizol); PEG-150 Pentaerythrityl Tetrastearate (Crothix™, Crothix™ Liquid, and Versathix™ made available by Croda); PEG-150 Polyglyceryl-2 Tristerate (Genapol® LT made available by Clariant); and PEG / PPG-120 / 10- 15 Trimethlolpropane Trioleate (Arlypon® TT made available by BASF). The number of hydrophilic polyalkoxylated arms are two for PEG-150 distearate, three for Arlypon® TT, four for Genapol® LT and Crothix™, Crothix™ Liquid, and Versathix™, and five for Glucomate™ DOE-120.

[0163] 20 Another class of optional thickening agent suitable for use includes crosslinked polyacrylates such as the Carbomers, polyacrylamides such as Sepigel® 305 and taurate copolymers such as Simulgel® EG and Aristoflex® AVC, the copolymers being identified by respective INCI nomenclature as Sodium Acrylate / Sodium Acryloyldimethyl Taurate and Acryloyl Dimethyltaurate / Vinyl Pyrrolidone Copolymer. Another synthetic polymer suitable for optional thickening is an acrylate-based polymer made commercially available by Seppic and sold under the name Simulgel INS100. Calcium carbonate, fumed silica, and magnesium-aluminum-silicate may also be used.

[0164] In an embodiment of the invention and as noted, if thickener is used the compositions of the 30 present invention are substantially free of thickener that is acrylate derived or based, and preferably, the compositions have less than 0.5% by weight, and most preferably, no (0.0%) by weight of acrylate-based thickener. P0001177COM

[0165] 23

[0166] In another embodiment, the thickener used is a cationic polymer. Preferred cationic polymers are quaternary nitrogen-containing polysaccharides, preferably quaternary nitrogen-containing cellulose ethers, such as those described in U. S. Pat. Nos. 3,472,840; 5 3,962,418; 4,663,159, and U. S. Pat. No. 5,407,919. Particularly preferred are quaternary nitrogen-containing hydroxyethyl celluloses. Examples of such cationic polymers are salts of hydroxyethyl cellulose reacted with a trimethyl ammonium substituted epoxide such as Polyquaternium-10, made commercially available by Dow® as UCARE™ Polymer JR-125, UCARE Polymer JR-400, UCARE Polymer KF, UCARE Polymer J R-30M, UCARE Polymer LR-400, UCARE Polymer LR-30M, UCARE Polymer LK, mixtures thereof or the like.

[0167] Other preferred cationic polymers include those known as hydrophobically-modified cationic conditioning polymers such as those made commercially available also by Dow® under the names SoftCAT™ SL 5, SoftCAT SL 30, SoftCAT SL 60, SoftCAT SL 100, SoftCAT SK-L, 15 SoftCAT SK-M, and SoftCAT SK-H. Included for suitable use in the aqueous phase of the invention as thickening agent are those cationic polymers referred to as Polyquaternium-7, Polyquaternium-44, Polyquaternium 24, or mixtures thereof. In an embodiment of the invention, the thickening agent, if used, comprises at least 50%, and preferably, at least 75%, and most preferably, at least 85% (or from 90 to 100% or from 90 to 96% or from 92 20 to 98% or from 95 to 99.5% or 100%) by weight Polyquaternium-67 (2-hydroxyethyl cellulose ether, reacted with N, N, N-trimethyl-N-oxiranylmethylammonium chloride and N- dodecyl-N, N-dimethyl-N-oxiranylmethylammonium chloride) made commercially available by Dow® under the SoftCAT SK-MH name.

[0168] The amount of thickening agent added when optionally desired in the aqueous phase ranges from 0 to 6%, and preferably, from 0.5 to 5%, and most preferably, from 1 to 5% (or from 1.5 to 4.5% or from 1.5 to 4% or from 1.5 to 3.5% or from 1.6 to 3.5% or from 1.7 to 2.4% or from 0.2 to 1.4%) by weight of the of the biphasic composition. In still another embodiment of the invention, the thickener when used is a carrageenan (preferably, i- 30 carrageenan), a non-ionic polysaccharide (preferably, SolagumTMTara from Seppic, Inc.), or a mixture thereof. P0001177COM

[0169] 24

[0170] The nonionic surfactant may optionally include a sugar amide, such as a polysaccharide amide. Specifically, the surfactant may be one of the lactobionamides described in U. S. Pat. No. 5,389,279 to Au et al., entitled " Compositions Comprising Nonionic Glycolipid Surfactants” issued Feb. 14, 1995 or it may be one of the sugar amides described in U. S.

[0171] 5 Pat. No. 5,009,814 to Kelkenberg, entitled " Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems" issued Apr. 23, 1991.

[0172] In an embodiment of the invention, the nonionic surfactant may optionally include glycerol monostearate, cocamide monoethanolamine, CMEA, or a mixture thereof. If selected for use, glycerol monostearate, CMEA, lactobionamide or a mixture thereof may optionally make up from 0.06 to 0.75% or from 0.1 to 0.65% or from 0.2 to 0.55% by weight of the biphasic composition made via the present invention. In another embodiment, the compositions of the present invention will have no (0.0% by weight) of such nonionic surfactants.

[0173] 15

[0174] In still another embodiment of the invention, cationic surfactants may optionally be used in the biphasic composition of the present invention.

[0175] One class of optional cationic surfactants includes heterocyclic ammonium salts such as 20 cetyl or stearyl pyridinium chloride, alkyl amidoethyl pyrrylinodium methyl sulfate, and lapyrium chloride.

[0176] Tetra alkyl ammonium salts are another useful class of cationic surfactants suitable for optional use. Examples include cetyl or stearyl trimethyl ammonium chloride or bromide; hydrogenated palm or tallow trimethylammonium halides; behenyl trimethyl ammonium halides or methyl sulfates; decyl isononyl dimethyl ammonium halides; ditallow (or distearyl) dimethyl ammonium halides, and behenyl dimethyl ammonium chloride.

[0177] Still other types of cationic surfactants that may be used are the various ethoxylated 30 quaternary amines and ester quats. Examples include PEG-5 stearyl ammonium lactate (e.g., Genamin KSL manufactured by Clariant), PEG-2 coco ammonium chloride, PEG-15 hydrogenated tallow ammonium chloride, PEG 15 stearyl ammonium chloride, dipalmitoyl P0001177COM

[0178] 25

[0179] ethyl methyl ammonium chloride, dipalmitoyl hydroxyethyl methyl sulfate, and strearyl amidopropyl dimethylamine lactate.

[0180] Even other useful cationic surfactants suitable for optional use include quaternized 5 hydrolysates of silk, wheat, and keratin proteins, and it is within the scope of the invention to use mixtures of the aforementioned cationic surfactants.

[0181] If used, cationic surfactants will make up no more than 2% by weight of the biphasic composition. If present, cationic surfactants will typically make up from 0.01 to 0.5%, and more typically, from 0.1 to 0.3% by weight of the composition. In another embodiment, the biphasic composition of the present invention has no (0.0% by weight) cationic surfactant.

[0182] Again, the aqueous phase comprises 20 to 80%, and preferably, from 22 to 75%, and most preferably, from 24 to 72% (or 26 to 70% or 27 to 68% or 28 to 68%) by weight water.

[0183] 15 Water, however, typically makes up from 8 to 40%, and preferably, from 10 to 35%, and most preferably, from 9 to 32% (or 9 to 30% or 10 to 28% or 11 to 27%) by weight of the biphasic composition.

[0184] As to the oil phase, in general, suitable oils that may be included are any of those which 20 may be topically applied like silicone oils and / or mineral oil, but preferably oils that are naturally sourced and sustainable, and mono-, di-, and especially, triglycerides.

[0185] Illustrative examples of oils that may be included for use are arachis oil, castor oil, coconut oil, corn oil, cotton seed oil, olive oil, rapeseed oil, canola oil, safflower seed oil, sesame seed oil, soybean oil, hydrogenated soybean oil, sunflower oil, high oleic sunflower oil (i.e., at least 75%, preferably at least 80% oleic acid), avocado oil, macadamia nut oil, argan oil, pomegranate oil, argan Moroccan oil, moringa oil, blueberry oil, raspberry oil, walnut oil, pecan oil, peanut oil, bayberry oil, mango seed oil, jojoba oil, hydrolyzed jojoba oil, sucrose distearate, sucrose tristearate, sucrose tertastearate, walnut oil, cranberry oil, isododecane, 30 isohexadecane, liquid paraffins and / or alkanes including C9-C15 paraffins and / or alkanes, preferably C11-C13 paraffins and / or alkanes, liquid isoparaffins and / or isoalkanes like C9-C15 isoparaffins and / or isoalkanes, preferably C11-C13 isoparaffins and / or isoalkanes, mixtures P0001177COM

[0186] 26

[0187] thereof or the like. While the biphasic composition of the present invention is preferably substantially free of silicone oil, if optionally used the same can include, for example, PEG- 3 dimethicone, PEG-8 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-11 methyl ether dimethicone, PEG-12 dimethicone, PEG-14 dimethicone, PEG-17 5 dimethicone, PEG-32 dimethicone, mixtures thereof or the like.

[0188] In an embodiment of the invention, the oil comprises sunflower oil, moringa oil, soybean oil or a mixture thereof. In another embodiment of the invention, the oil used is from 55 to 100%, or from 70 to 100% or from 85 to 100% (or 85 to 98% or 90 to 98%) by weight of plant derived triglyceride. In still another embodiment, the oil used is at least 40% by weight, and preferably, at least 45%, and most preferably, 48% to 68% by weight monounsaturated and / or from 10% to 30%, or 12% to 28%, or from 15% to 25% by weight polyunsaturated.

[0189] In even another embodiment of the invention, the oil selected for use comprises a mixture 15 of oils where at least 50% by weight, and preferably, at least 75% to 99.9% by weight (or from 80 to 95% or from 85 to 92% or from 82 to 90% by weight of the oil used is soybean or sunflower oil, or a mixture thereof (liquids at 25°C) based on total weight of the oil in the oil phase. In another embodiment, less than 5% by weight of the total oil used, and preferably, less than 2.5%, and most preferably, none (0.0%) of the oil used is D5 cyclic 20 siloxane (decamethylcyclopentasiloxane). In still another embodiment, the oil used is all (100% by weight based on total weight of the oil) soybean oil or sunflower oil or moringa oil.

[0190] In an embodiment of the invention, the oil selected for use is isododecane, isohexadecane or a mixture thereof. Instill another embodiment, the oil used is 95 to 100% or from 98 to 100% or 100% by weight soybean oil based on total weight of oil in the oil phase.

[0191] Typically, the oil used will be evenly or homogenously dispersed in the aqueous phase within the transient emulsion (in view of the surfactants used) and / or will not be solubilized, having a droplet size from 1 to 500 microns, and preferably, from 2 to 200 microns, and 30 most preferably, from 2 to 60 microns (or from 2 to 30 microns or from 2 to 20 microns or from 2 to 10 microns) in the transient emulsion where droplet size may be taken with a P0001177COM

[0192] 27

[0193] particle size analyzer, like a commercially available Malvern MS3000 Analyzer or visually by viewing and measuring droplets with a commercially available optical microscope.

[0194] In still another embodiment of the invention, the oil phase can optionally have added thereto 5 occlusive that is a semi-solid at 22°C, like petroleum jelly, CAS No. 8009-03-08, whereby such occlusive is a combination of hydrocarbons mainly having carbon chains longer than 25. Petroleum jelly, therefore, is characterized as a composition made predominately of the paraffin series that can be obtained by, for example, dewaxing lubricating oil stock (or crude oil refining) whereby the same melts at temperatures from 35 to 72°C (more often 40 to 70°C) and boils at a temperature of 285°C or higher and often at a temperature between 295 and 325°C. Such occlusive is characterized as a semi-solid that spreads well topically at skin’s natural temperature of 33 to 37°C. Free of polycyclic aromatics, the most well- known and best produced petroleum jelly is sold under the brand name Vaseline®. In the present invention, petroleum jelly and petrolatum are meant to be the same. Semi-solid, as 15 used herein, means soft like Vaseline®, not pourable at room temperature but spreadable on skin at room temperature.

[0195] Other materials suitable as semi-solid occlusive for optional addition include those made to mimic petroleum jelly (“petroleum jelly substitute” or “substitute”) but are not derived from 20 petroleum or any biproduct or residue recovered from the processing of the same such as processing for gas production. They are, therefore, preferably plant-based, sustainable, soft solids that melt at temperatures similar to those described for petroleum jelly (more often from 29 to 65°C).

[0196] Such a petroleum jelly substitute suitable for use can be a vegetable-based substitute comprising, for example, triglycerides, castor oil, glycerin, caprylic / capric triglyceride, polyglyceryl ricinoleate, coconut oil, sunflower seed oil, safflower oil, cottonseed oil, olive oil, mixtures thereof or the like. Other options include the occlusives described in WO 22150812 A1, WO 22150813 A1, WO 22150814 A1, WO 221150815 A1, U. S. Patent No.

[0197] 30 8,524,211. P0001177COM

[0198] 28

[0199] Additional occlusive suitable for use is sold under the name BOTANIJELLY™ and made commercially available by Cargill (INCI hydrogenated vegetable glycerides). Other available occlusives that may be used as occlusive include those sold commercially by Sonneborn under the SonneNatural™ name and including the J-207, NXG, and PF-1 5 varieties.

[0200] When used, occlusive of the soft-solid type makes up from 0.5 to 10% or from 1 to 8% or from 2 to 7% or from 3 to 7% by weight of the total weight of the oil phase used in the biphasic composition. In an embodiment of the invention, when occlusive of the soft-solid type is used, the same will, in the compositions of the invention, have a droplet size consistent with the droplet sizes defined herein for the oils used that are liquid at 25°C. In yet another embodiment, the occlusive may be solubilized.

[0201] In an alternative, occlusive of the soft-solid type may be added to the aqueous phase in a 15 nanoemulsion, thus delivering occlusive of the soft-solid type with an oil droplet size from 2 nm to 600 nm, and preferably, from 4 to 200 nm or from 5 to 100 nm or from 8 to 25 nm. When used oil present in the aqueous phase as nano-droplets ranges from 1.5 to 8.5% by weight of the aqueous phase, and preferably, from 2 to 7.5%, or from 2 to 7%, and most preferably, from 3 to 6.5% or from 3.5 to 6% or from 3.8 to 5.7% or from 3.8 to 5.5% by weight 20 of the aqueous phase.

[0202] When making the end use composition (i.e., transient emulsion), the aqueous phase and oil phase are combined at a weight ratio (aqueous phase: oil phase) of 2:1 to 1:2, or from 1.9: 1.1 to 1:1 to 1.9, or from 1.75:1 to 1:1.75 or from 1.5:1 to 1:1.5 or from 1.35:1 to 1:1.35 or from 1.25:1 to 1:1.25 or from 1.15:1 to 1:1.15 or from 1:1. When combining as herein described with, for example, moderate shearing or agitation, a homogeneous end use wash composition is obtained where the same is the transient emulsion. For consumer brand experience, the biphasic composition is typically provided in a transparent of translucent package, preferably transparent bottles, including those which are glass or plastic (e.g., those 30 comprising polyethylene terephthalate as well as such with post-consumer resin and bottles which are bispenol-A free). P0001177COM

[0203] 29

[0204] As noted above the transient emulsion is homogeneous after applying shear and reverts back to being biphasic in a time period from 3 minutes to 1 day, or from 4 minutes to 5 hours or from 5 minutes to 2 hours or from 5 minutes to 1 hour or from 5 to 30 minutes, or from 7 to 25 minutes or in 8 to 20 minutes (or 8.5 to 18 minutes or 9.5 to 17 minutes). In an embodiment 5 of the invention, the transient emulsion begins to separate in 4.5 minutes and reverts to 2 phases within 1 day from the time the composition begins to separate. In still yet another embodiment of the invention, the amount of aqueous phase and oil phase used (in terms of weight percent of each) in the biphasic composition includes where the weight percent of both phases are within 15% or within 10% or within 5% or within 2% of each other, or equal to each other. For the avoidance of doubt, if a water-soluble ingredient ‘WS” makes up 5% by weight of the biphasic composition and the biphasic composition is a 50 / 50 ratio of the aqueous and oil phases, then WS is present in the aqueous phase at 10% by weight.

[0205] Preservatives can desirably be incorporated into the aqueous phase used in the invention 15 to protect against the growth of potentially harmful microorganisms. Cosmetic chemists are familiar with appropriate preservatives and routinely choose them to satisfy the preservative challenge test and to provide product stability. Suitable traditional preservatives for use include propionate salts. Suitable preservatives are iodopropynyl butyl carbamate, phenoxyethanol, sodium benzoate, hydroxyacetophenone, ethylhexylglycerine, hexylene 20 glycol, methyl paraben, propyl paraben, imidazolidinyl urea, sodium dehydroacetate, dimethyl-dimethyl (DMDM) hydantoin, benzyl alcohol, and mixtures thereof. Other preservatives suitable for use include sodium dehydroacetate, chlorophenesin and decylene glycol. Preservatives are preferably employed in amounts ranging from 0.08 to 2.6% by weight of the total weight of the aqueous phase. Also preferred is a preservative system with hydroxyacetophenone alone or in a mixture with other preservatives. Standard emollients, like vicinal diols (e.g., 1,2-hexane diol and / or 1,2-octane diol), may be used with the preservatives. In an embodiment of the invention, the preservative used is sodium benzoate. In another embodiment, the preservative used is Galguard® (phenoxyethanol, benzoic acid, capryloyl glycine, undecylenoyl glycine) made available from Galaxy. In even 30 another embodiment, the preservative used comprises collectively in total less than 25% by weight, and preferably, less than 15% by weight methylchloroisothiazolinone and methylisothiazolinone based on total weight of the preservative used. In still another P0001177COM

[0206] 30

[0207] embodiment, no methylchloroisothiazolinone and methylisothiazolinone are used in the compositions of the present invention. As noted herein, the preservative used is preferably substantially free of parabens and hydantoins, and most preferably, the preservative has no paraben, no isothiazolinone and no hydantoin. In another preferred embodiment, the 5 preservative used is sodium benzoate. In still another embodiment the biphasic composition comprises less than 0.6% or less than 0.3% or less than 0.2% or from 0.01 to 0.1% or no (0.0%) by weight preservative and is, therefore, preservative free.

[0208] Inorganic salt (i.e., electrolyte) is an optional but often desired ingredient to aid in stabilization of the biphasic composition. Typical salts may be used like NaCI, KCI, MgCl2, CaCl2, mixtures thereof or the like. Such inorganic salt makes up from 0.2 to 2.5%, and preferably, from 0.25 to 2%, and most preferably, from 0.3 to 1.75% (or from 0.3 to 1.5% or from 0.4 to 1.5% or from 0.5 to 1.2%) by weight of the biphasic composition.

[0209] 15 The pH of the compositions (aqueous phase and end use) is as herein defined from greater than 5.5 to 8.5. Adjusters for pH consistency are suitable for use. Such pH adjusters include amino methyl propanol, triethylamine, triethanolamine, ammonium, arginine, diisopropanolamine, triisopropanolamine, NaOH, KOH, H2SO4, HCI, C6H8O7(i.e., citric acid) or mixtures thereof. The pH adjusters are added at amounts to yield the desired final 20 pH. The pH values may be assessed with commercial instrumentation such as a pH meter made commercially available from Thermo Scientific®. Typically, such adjusters make up from 0.5 to 2.5%, and preferably, from 0.7 to 2%, and most preferably, from 0.9 to 1.7% (or from 1 to 1.5% or from 1 to 1.3%) by weight of the aqueous phase.

[0210] Structurants may optionally be used for aiding in structuring of the end use composition (transient emulsion). Illustrative examples of such components include C8to C18, and preferably, C10to C16, and most preferably, C12to C14fatty acids, fatty alcohols, fatty amides, or mixtures thereof. In an embodiment of the invention, such a component is lauric acid, myristic acid, palmitic acid, stearic acid or a mixture thereof where the hydrophobic portion of such can be unsaturated but 30 typically with no more than one double bond. Typically, structuring components, if used, make up from 0.001 to 8%, and preferably, from 0.5 to 4%, and most preferably, from 0.7 to 3.8% or from 0.8 to 3% or from 1 to 5% by weight of the aqueous phase (often from 2 to 3% by weight P0001177COM

[0211] 31

[0212] of the biphasic composition). In another embodiment, a fatty alcohol like lauryl alcohol, myristyl alcohol, palmityl alcohol, or a mixture thereof may be used. In still another embodiment, a fatty alcohol may be used with a fatty acid like lauric acid, where the mixture of fatty alcohol and fatty acid is from 45 to 80%, and preferably, from 50 to 75%, and most preferably, from 52 to 72% or 5 from 62 to 72% or from 65 to 70% by weight fatty alcohol based on total weight of structurant (i.e., fatty alcohol and fatty acid) in the aqueous phase. For the avoidance of doubt, the structurant, when used, can aid in the transient emulsion having lamellar wash composition characteristics where lamellar means the packing of molecules with polar heads and non-polar tails as bilayer sheets separated by a polar liquid like water. In one embodiment of the invention, the transient emulsion comprises from 1 to 3.5% or from 1.5 to 3% or from 2 to 2.85% by weight lauryl alcohol (dodecanol).

[0213] Antioxidants are suitable for optional use. When used, they typically make up from 0.2 to 2% or from 0.3 to 1.6% or from 0.4 to 1.25% by weight of the biphasic composition. The antioxidants 15 suitable for use can be water or oil soluble. Illustrative water-soluble antioxidants that may be used include Vitamin C, uric acid, glutathione, a mixture thereof or the like. Fat soluble antioxidants include Vitamin E (and its derivatives), lycopene, carotene, coenzyme Q10, mixtures thereof or the or the like. Other suitable options include, Tinogard® TL, Tinogard® TT or the like.

[0214] 20

[0215] Optional skin benefit agents are suitable for use in this invention, and they are limited only to the extent that the agents are capable of being topically applied via a wash composition.

[0216] Illustrative examples of the water-soluble benefit agents suitable to include in the aqueous phase are vitamin B2, niacinamide (vitamin B3), vitamin Be, vitamin C, mixtures thereof or the like. Water soluble derivatives of such vitamins may also be employed. For instance, vitamin C derivatives such as ascorbyl tetraisopalmitate, magnesium ascorbyl phosphate and ascorbyl glycoside may be used, alone or in combination with each other. Other water- soluble benefit agents suitable for use include 4-ethyl resorcinol, extracts like sage, aloe 30 vera, green tea, grapeseed, thyme, chamomile, yarrow, cucumber, liquorice, rosemary extract, or mixtures thereof. Water soluble sunscreens like ensulizole may also be used. P0001177COM

[0217] In another embodiment, water soluble active suitable for use includes at least one of S- adenosyl-L-methionine, a 1 -alkyl nicotinamide having structure IX, and a methionine having structure X:

[0218] o

[0219]

[0220] IX or X 5

[0221] wherein Rcis a Ci_4alkyl, preferably, methyl (N-methyl nicotinamide) and X is a negative counter ion, preferably, CI-, Rdis methyl, ethyl, propyl, hydroxymethyl, 2-hydroxyethyl, preferably, methyl and Reis H, methyl, ethyl, isopropyl, preferably, H (N-acetyl methionine). Such components are described in WO / 2021 / 008824A1. If used, from 0.0001 to 10% or 10 from 0.001 to 8%, and most preferably, from 0.01 to 5% or from 0.01 to 3% or from 0.01 to 2% or from 0.01 to 1 % by weight of each of such ingredients, independently, may be used alone or in a combination thereof in the biphasic composition. In another embodiment, any of such ingredients may optionally be used with from 0.01 to 4%, or from 0.01 to 2% or from 0.01 to 1% or from 0.1 to 0.8% by weight niacinamide or 12-hydroxystearic acid or both, based on total weight of the biphasic composition. In even another embodiment, the biphasic composition may comprise acetyl cysteine at from 0.001 to 1.8% by weight of the biphasic composition.

[0222] As to the total amount of optional water-soluble benefit agents (including mixtures) that may 20 be used in the present invention, the same may range from 0.001 to 10%, and preferably, from 0.001 to 8%, and most preferably, from 0.01 to 6% by weight, based on total weight of the biphasic composition. P0001177COM

[0223] 33

[0224] It is also within the scope of the present invention to optionally include oil soluble benefit agents. The oil soluble actives or benefit agents are solubilized or carried in the oil phase of the present invention.

[0225] 5 Illustrative examples of the types of oil soluble benefit agents that may optionally be used in the compositions of this invention include components like stearic acid, vitamins like vitamin A, D, E and K (and their oil soluble derivatives), sunscreens like ethylhexylmethoxycinnamate, bis-ethyl hexyloxyphenol methoxyphenol triazine, 2- ethylhexyl-2-cyano-3,3-diphenyl-2-propanoic acid, drometrizole trisiloxane, 3,3,5-trimethyl cyclohexyl 2-hydroxybenzoate, 2-ethylhexyl-2-hydroxybenzoate, or mixtures thereof.

[0226] Other optional oil soluble benefit agents suitable for use include resorcinols like 4-hexyl resorcinol, 4-phenylethyl resorcinol, 4-cyclopentyl resorcinol, 4-cyclohexyl resorcinol 4- isopropyl resorcinol or a mixture thereof. Also, 5-substituted resorcinols like 4-cyclohexyl- 15 5-methylbenzene-1,3-diol, 4-isopropyl-5-methylbenzene-1,3-diol, mixtures thereof or the like may be used. The 5-substituted resorcinols and their synthesis are described in commonly assigned U. S. Published Patent Application No. 2016 / 0000669A1.

[0227] Even other oil soluble actives suitable for use include omega-3 fatty acids, omega-6 fatty 20 acids, climbazole, farnesol, ursolic acid, myristic acid, geranyl geraniol, oleyl betaine, cocoyl hydroxyethyl imidazoline, hexanoyl sphingosine, 10-hydroxystearic acid, 12-hydroxystearic acid, petroselinic acid, conjugated linoleic acid, terpineol, thymol, mixtures thereof or the like.

[0228] In an embodiment of the invention, the optional oil soluble benefit agent used is a retinoic acid precursor. In one embodiment of the invention, the retinoic acid precursor is retinol, retinal, retinyl propionate, retinyl palmitate, retinyl acetate, or a mixture thereof. Retinyl propionate, retinyl palmitate, and mixtures thereof are typically preferred. Additionally, 12- hydroxystearic acid is often preferred for use with or without glycerol, niacinamide or both.

[0229] 30

[0230] When optional oil soluble active is used, collectively, the same or mixtures of actives typically makes up to 3.5%, and preferably, from 0.001 to 2.5%, and most preferably, from P0001177COM

[0231] 34

[0232] 0.05 to 2% (or from 0.5 to 1.6% or from 0.6 to 1.2%) by weight of the end use composition (i.e. transient emulsion).

[0233] Fragrances, fixatives, chelators (like EDTA or tetrasodium glutamate diacetate) and 5 exfoliants may optionally be included in the compositions of the present invention. Each of these substances may range from about 0.03 to about 5%, preferably between 0.1 and 3% or from 0.5 to 1.4% or from 0.6 to 1.2% by weight of the total weight of the end use composition. To the extent the exfoliants are used, those selected should be of small enough particle size so that they do not impede the performance of any packaging used to dispense the compositions of this invention.

[0234] In an embodiment of the invention, biphasic wash composition comprises from 0.01 to 3.5%, or from 0.02 to 3%, or from 0.03 to 2.5% by weight of at least one of glycerol, palmitic acid, 12-hydroxystearic acid, 10-hydroxystearic acid, caffeine, stearic acid, mandelic acid, 15 hyaluronic acid, salicylic acid, ceramides, sphingosine, thiamidol, honokiol, thymol, terpineol, conjugated linoleic acid, niacinamide, glycolic acid, lactic acid, benzalkonium chloride, cetrimonium chloride, benzoyl peroxide, vitamin E, benzyl alcohol, citric acid, aloe barbadensis leaf juice, or a mixture thereof. In another embodiment of the invention, the biphasic wash composition does comprise palmitic acid, glycerol, and at least one of stearic 20 acid and 12 hydroxystearic acid. In even another embodiment, the biphasic wash composition comprises from 0.1 to 3% or from 0.2 to 2.8% or from 0.2 to 2% or from 0.2 to 1.4% by weight 12-hydroxystearic acid, whereby the aqueous phase and oil phase are transparent and when the two phases exist, surprisingly, at least 80% or at least 85% or from 90 to 100% or from 92 to 98% by weight of the total weight of 12-hydroxystearic acid used is present in the aqueous phase.

[0235] When making the water and oil phases of the present invention, the desired ingredients may be mixed with conventional apparatus under moderate shear and atmospheric conditions, with temperature being from 30 to 80°C. Moderate shear such as shaking (or 30 stirring) in a conventional mixer will yield the desired phases where shear stops when the phase being made is homogeneous. P0001177COM

[0236] 35

[0237] The Examples provided are to facilitate an understanding of the invention. They are not intended to limit the scope of the claims.

[0238] Example I

[0239] 5 Biphasic wash compositions consistent with this invention and controls were prepared and assessed. All Samples were prepared by first combining the aqueous phase ingredients identified below in the Table and mixing with moderate shear under atmospheric conditions at a temperature from about 35 to 75°C. Soybean oil was subsequently added. The phases made consistent with the invention were stable, displayed no color change or syneresis.

[0240] 10 The phases were subsequently agitated by skilled panelists (for about 1.5 to 2 minutes) to mimic in home use and to mimic washing conditions with the resulting transient emulsions (i.e., end use wash compositions).

[0241] TABLE

[0242] Ingredient (wt%) 1 2 3 4* 5* 6 7* Decyl Glucoside 7.5

[0243] PEG-5 Cocoate 7.5

[0244] POE Sorbitan Oleate' 7.5

[0245] Sorbitan Oleate 7.5

[0246] PEG-100 Stearate 7.5

[0247] Sucrose Cocoate 7.5 Sucrose Distearate 7.5 Cocamidopropyl Betaine 5 5 5 5 5 5 5 Na Methyl Lauroyl Taurate 5 5 5 5 5 5 5 Hexylene Glycol 12.5 12.5 12.5 12.5 12.5 12.5 12.5 Dodecanol 2.5 2.5 2.5 2.5 2.5 2.5 2.5 Fragrance 0.75 0.75 0.75 0.75 0.75 0.75 0.75 Caprylyl glycol 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Preservative 0.5 0.5 0.5 0.5 0.5 0.5 0.5 pH Adjuster 6-6.5 6-6.5 6-6.5 6-6.5 6-6.5 6-6.5 6-6.5 Soybean oil 50 50 50 50 50 50 50 Water balance balance balance balance balance balance balance HLB of Nonionic 13-15 8-10 15 18.8 4.3 15 3

[0248]

[0249] Assessment Positive Positive Positive Fail Fail Positive Fail 15 i-Polyoxyethylene Sorbitan Oleate

[0250] * Samples 4, 5 and 7: control compositions, made with conventional nonionic surfactants P0001177COM

[0251] 36

[0252] Samples depicted with an asterisk, Samples 4, 5 and 7, were not made according to the invention. The transient emulsion made after agitating was not translucent and was unstable with flocculant or precipitate appearing throughout the transient emulsion.

[0253] 5 Subsequent to applying additional shear, it was not possible to obtain a homogeneous transient emulsion with characteristics suitable for consumer acceptance and use.

[0254] All other Samples were made according to the invention. The phases mixed well with less than 1.5 minutes of agitation. Skilled panelists washed with all formulae made consistent 10 with the invention and concluded the resulting transient emulsions provided excellent sensory characteristics upon use. With 50% by weight oil in such emulsions, the end use compositions unexpectedly delivered excellent lather characteristics, lather consistent with compositions having less than 10% by weight oil when making bilateral comparisons while washing.

[0255] 15

Claims

P0001177COM37Claims1. A biphasic composition comprising:I. an aqueous phase comprising:i) a nonionic surfactant having an HLB from 6-16, and preferably, from 7 to 16, 5 and most preferably, from 7.5 to 15.5 or from 8 to 15, or a mixture of nonionic surfactants having an average HLB from 6 to 16, and preferably, from 7 to 16, and most preferably, from 7.5 to 15.5 or from 8 to 15;ii) anionic surfactant comprising at least one of a taurate, glycinate, glutamate, alkyl sulfonate, alpha-olefin sulfonate, alkyl sulfosuccinate, alkyl ether sulfosuccinate, acyl sarcosinate, saccharide-based surfactant, C10-C20 lactylate, C10-C20 glycolate, isethionate, sulfoacetate, alkyl sulfate, alkyl ether sulfate, or a mixture thereof;iii) amphoteric surfactant;iv) 10 to 38%, and preferably, 14 to 36%, and most preferably, 15 to 34% (or 15 from 15 to 32% or from 16 to 29% or from 19 to 29% or from 19 to 28% by weight of solvent comprising from 83 to 100% by weight C3to C10diol based on total weight of the solvent;v) optionally a thickener;vi) 20 to 80%, and preferably, from 22 to 75%, and most preferably, from 24 to 20 72% (or 26 to 70% or 27 to 68% or 28 to 68%) by weight water;vi) from 0.0 to 8% by weight of a C8to C18, and preferably, C10to C16, and most preferably, C12to C14fatty acid, fatty alcohol, fatty amide or mixture thereof; andII. an oil phase comprising:at least 92.5%, and preferably, 93 to 100% and most preferably, from 94 to 100% by weight oil or from 94 to 99% or from 95 to 98% by weight oil or 100% by weight oil that is clear at a temperature from -21 °C to 35°C, and preferably, from -20°C to 35°C, and most preferably, from -18°C to 35°C or from -17°C to 35°C or from -17 to 30°C or from -16 to 28°C,30 wherein the aqueous phase has a pH from 5.7 to 8, and the biphasic wash composition comprises at least 2.5 to 10% by weight anionic surfactant, and from 6.5 to 21.5%, andP0001177COM38preferably, from 7 to 21%, and most preferably, from 8 to 20.5% or from 8.2 to 20% or from 9 to 20% or from 10 to 19% or from 10 to 18.5% or from 12 to 18% total surfactant based on total weight of the biphasic composition and further wherein the aqueous phase and the oil phase each, independently, make up from 30 to 70% by weight of the 5 biphasic composition.

2. The biphasic composition according to claim 1 wherein the composition comprises from 0 to less than 2% by weight of a sulfate-based surfactant and less than 75 ppm of 1,4- dioxane.

3. The composition according to claim 1 or 2 wherein the composition comprises no sulfate-based surfactant.

4. The composition according to any of the previous claims wherein the nonionic 15 surfactant having an HLB from 6 to 16 comprises C8-16 alkyl glucoside, ethoxylated fatty acid, preferably PEG-5 cocoate, PEG-7 cocoate, sucrose cocoate, polyoxyethylene sorbitan oleate, preferably, Tween 80, ora mixture thereof.

5. The composition according to any of the previous claims wherein the composition 20 further comprises caffeine, stearic acid, mandelic acid, hyaluronic acid, salicylic acid, ceramide, sphingosine, thiamidol, honokiol, thymol, terpineol, conjugated linoleic acid, niacinamide, glycolic acid, lactic acid, benzalkonium chloride, cetrimonium chloride, benzoyl peroxide, vitamin E, benzyl alcohol, citric acid, aloe barbadensis leaf juice, or a mixture thereof.

6. The composition according to any of the previous claims wherein the mixture of nonionic surfactants comprises at least one of sorbitan oleate, sorbitan stearate, PEG- 100 stearate and polyoxyethylene sorbitan laurate (preferably, Tween 20).30 7. The composition according to any of the previous claims wherein the anionic surfactant comprises at least one of a taurate, glycinate, glutamate, alkyl sulfonate, alpha-olefin sulfonate, alkyl sulfosuccinate, alkyl ether sulfosuccinate, acylP0001177COM39sarcosinate, saccharide-based surfactant, C10-C20 lactylate, C10-C20 glycolate, isethionate, C10-18 sulfoacetate, or a mixture thereof.

8. The composition according to any of the previous claims wherein the composition 5 comprises alkyl sulfate, alkyl ether sulfate or a mixture thereof.

9. The composition according to any of the previous claims wherein the composition comprises 10 to 38%, and preferably, 14 to 36%, and most preferably, 15 to 34% or from 15 to 32% or from 16 to 29% or from 19 to 29% or from 19 to 28% by weight of solvent comprising from 83 to 100% by weight C3to C10diol based on total weight of the solvent.

10. The composition according to any of the proceeding claims wherein the aqueous phase and oil phase are substantially transparent.1511. The composition according to any of the preceding claims where the aqueous phase has a pH from 5.5 to 7.5.

12. The composition according to any of the preceding claims wherein the composition comprises salts of a cocoyl methyl taurate and cocoyl taurate.

13. A method for making a wash composition comprising the steps of:a. agitating the biphasic composition according to any of the previous claims; b. obtaining transient emulsion,25 the transient emulsion having a viscosity from 50 to 235,000 mPa-s.

14. The method according to claim 13 wherein the transient emulsion is translucent, agitating is from 5 seconds to 3.5 minutes, and the transient emulsion reverts to a biphasic composition in 3 minutes to 5 hours.

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