Aerated cosmetic composition

Abstract

Disclosed herein are personal care compositions. More specifically, disclosed herein is a cosmetic composition comprising a starch, a polyol, and a nonionic emulsifier wherein the composition is suitable for topical application to the skin, is an oil-in-water emulsion aerated with air and / or inert gases.

Description

Technical Field

[0001] Disclosed herein are personal care compositions. More specifically, disclosed herein are cosmetic compositions comprising starch, a polyol, and a nonionic emulsifier, wherein the composition is suitable for topical application to the skin and is an oil-in-water emulsion aerated with air and / or an inert gas. Background Art

[0002] Many consumers are attracted to cosmetic compositions that are said to have a light or whipped texture, which are formulated to provide a pleasant use and after-use experience when applied. Such compositions also tend to spread more easily on the skin and / or penetrate the skin. After application, such compositions do not leave a greasy or heavy feeling on the skin, while still imparting moisturizing benefits to the skin.

[0003] Cosmetic compositions with a light or whipped texture are usually aerated, meaning that a selected gas, such as air, has been incorporated into the base composition. However, aerated cosmetic compositions tend to be relatively unstable due to their low density and tendency to separate. These are very challenging issues to be addressed by aerated cosmetic compositions.

[0004] Thus, the inventors have recognized the need to develop stable aerated cosmetic compositions in the form of low density emulsions. Thus, disclosed herein are cosmetic compositions having starch, a polyol, a nonionic emulsifier, an aqueous phase, and an oil phase, wherein the composition is suitable for topical application to the skin, is an oil-in-water emulsion, and is aerated with air and / or an inert gas. Such compositions are sustainable because, unexpectedly, excellent sensory properties and skin benefits are provided to the consumer after use, wherein the composition is used in less amount than the amount of product typically used per single application of conventional cosmetic compositions.

[0005] Additional Information

[0006] Efforts have been disclosed to incorporate air or gas into cosmetic compositions.

[0007] US Patent No. 8,114,855 discloses a gas-incorporated cosmetic mixture, wherein the cosmetic mixture comprises an alkyl (en)yl polyglycoside, a quaternary ammonium polymer and a thickener to form a low-density formulation.

[0008] US Patent No. 9,193,852 relates to a composition comprising an oil phase dispersed in an aqueous phase, characterized in that the composition contains air or an inert gas, at least one modified starch, at least one emulsifier and at least one oil-dispersible structurant.

[0009] PCT Publication No. 2015 / 096115 describes an oil-in-water composition in the form of a foam having a fat phase dispersed in a continuous aqueous phase having a density of 0.3 to 0.95, comprising at least one starch phosphate, a superabsorbent polymer, a hydrophilic gelling polymer, and a surfactant.

[0010] PCT Publication No. 2019 / 129683 discloses a whipped cosmetic composition in the form of an oil-in-water nanoemulsion comprising a liquid fatty substance, a cationic surfactant, a gas and water for use in the cosmetic treatment of keratin materials.

[0011] None of the additional information above describes the specific combinations disclosed and claimed herein. Summary of the invention

[0012] The present inventors have discovered a stable aerated cosmetic composition in the form of an emulsion having a low density.

[0013] Thus, in a first aspect, the composition relates to a cosmetic composition in the form of an oil-in-water emulsion with a low density, comprising starch, a polyol, a nonionic emulsifier, an aqueous phase and an oil phase, wherein the composition is aerated with air and / or an inert gas.

[0014] In a second aspect, there is provided a method of aerating a cosmetic composition comprising the steps of:

[0015] (a) preparing an oil-in-water emulsion comprising starch, a polyol, a nonionic emulsifier, an aqueous phase and an oil phase; and

[0016] (b) adding air to the cosmetic composition by a whipping technique and / or an injection technique at a temperature ranging from 22°C to 85°C and at a pressure of 50 to 1600 mmHg, preferably 60 to 1300 mmHg, more preferably 70 to 1000 mmHg, into a tube having a diameter ranging from 0.5 to 4 inches.

[0017] In a third aspect, there is provided use of the cosmetic composition of the first aspect for delivering a benefit to the skin.

[0018] In a fourth aspect, a method of preparing the cosmetic composition of the first aspect is provided.

[0019] The inventors have surprisingly found that the compositions disclosed herein are sustainable in that they provide excellent sensory and skin benefits to the consumer upon use, and provide said benefits in less amount than the amount of product typically required for a conventional cosmetic composition for similar application. In addition, the disclosed cosmetic compositions have a lower density when compared to conventional leave-on compositions, but are surprisingly stable and robust enough to support high gas addition levels.

[0020] All other aspects of the cosmetic composition of the present invention will readily become apparent upon consideration of the following detailed description and examples. DETAILED DESCRIPTION

[0021] The disclosed cosmetic composition relates to an aerated cosmetic composition, wherein the composition has air bubbles dispersed therein, and wherein the air bubbles form 5 to 35%, or 7 to 30%, or 10 to 25% by volume of the composition.

[0022] The bubbles can be any gas that is desired to be used in the cosmetic composition. In one aspect of the disclosed cosmetic composition, the bubbles are from a gas such as air, carbon dioxide, nitrogen, nitrous oxide, or a mixture thereof. In another aspect, the gas comprises air, nitrogen, or a mixture thereof.

[0023] The cosmetic compositions disclosed herein have a relative humidity of 0.5 to 1.4 g / cm2 when measured at 25°C and atmospheric pressure. 3 , or 0.6 to 1.1 g / cm 3 , or 0.7 to 1.0 g / cm 3 , or 0.8 to 0.95 g / cm 3 , or 0.8 to 0.9 g / cm 3 The density of an aerated sample can be measured with a pycnometer, a densitometer, or by other standard methods known to those skilled in the art.

[0024] The polyol compound included in the disclosed cosmetic composition is a polyol substance. Exemplary but non-limiting polyols include glycerol (i.e., glycerine or glycerin), propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1,3-butylene glycol, isopentylene glycol, 1,2,6-hexanetriol, ethoxylated glycerol, propoxylated glycerol, and mixtures thereof. In one aspect of the disclosed cosmetic composition, the polyol includes glycerol, butylene glycol, sorbitol, or mixtures thereof. The amount of the polyol used can be 0.1 to 15%, or 1 to 12%, or 3 to 10%, by weight of the cosmetic composition.

[0025] The cosmetic composition disclosed herein comprises starch. The starch used herein includes natural and modified (e.g., physically or chemically modified) starch. In one aspect, starch is a chemically modified starch. Illustrative but non-limiting examples of natural starch include arrowroot (Maranta arundinacea) (arrowroot) powder, cassava (Manihotesculenta) (cassava) starch, cassava (Manihot esculenta) (cassava) starch, corn (Zea mays) (corn) starch, Oryza sativa (Rice) starch, Solanum tuberosum (Potato) (Potato) starch, Triticum vulgare (Wheat) starch, Cycas revoluta (Cycas revoluta) (Sago) starch, Hordeum vulgare (Barley) (Barley) starch, or mixtures thereof. For modified starch, physical modification can include, by way of example but not limitation, annealing, freeze-thaw treatment, heat treatment (e.g., extrusion heating, simple oven heating, superheating), heat moisture treatment, hydrothermal treatment, mechanical treatment (e.g., grinding, mechanical activation, micronization, milling), moisture treatment, pH treatment, pressure treatment (e.g., dynamic pulse pressure treatment, high pressure treatment, transient controlled pressure treatment, osmotic pressure treatment, hydrostatic pressure treatment), pulsed electric field treatment, radiation treatment (e.g., electromagnetic radiation, gamma radiation, microwave radiation, ultraviolet (UV) radiation), sonication and ultrasound treatment, or a combination of different physical factors (e.g., dual modification). Desirable chemical modification of starch includes, for example, techniques known to those of ordinary skill in the art to result in cationization, crosslinking, esterification (e.g., acetylation, fatty acetylation, phosphorylation, succinylation), etherification (e.g., methylation, hydroxymethylation, hydroxypropylation, carboxymethylation), graft copolymerization, hydrolysis, oxidation or dual modification. Representative starches are chemically modified starches, such as sodium hydroxypropyl starch phosphate, distarch phosphate, sodium polyacrylate starch, glyceryl starch, and aluminum starch octenyl succinate. Genetic variants of plant-based starches, such as high amylose and high branched-chain starches, are also within the scope of the disclosed cosmetic compositions. With regard to starches used in the cosmetic compositions, 0.1 to 3%, or 0.25 to 2%, or 0.5 to 1.75%, or 0.75 to 1.6% by weight of starch can be used in the cosmetic compositions.In one aspect of the disclosed cosmetic composition, the starch includes sodium hydroxypropyl starch phosphate, tapioca starch, or a mixture thereof.

[0026] The cosmetic composition disclosed herein is an emulsion. In one aspect of the disclosed composition, the emulsion is an oil-in-water emulsion comprising an aqueous phase and an oil phase. The amount of the aqueous phase is about 30 to 80 weight %, or 35 to 75 weight %, or 40 to 70 weight %, including all ranges contained therein, based on the weight of the aerated cosmetic composition. In one aspect, the aqueous phase comprises water. In another aspect, the aqueous phase consists essentially of water.

[0027] Desirable emulsions have an oily phase comprising at least one oil, lipid, wax, or mixtures thereof. Illustrative but non-limiting examples of oils include Adansonia digitata (Baobab) seed oil, Argania spinosa (Argan) kernel oil, Behenyl Neopentanoate, Borago officinalis (Borage) seed oil, Brassica campestris (Rapeseed) seed oil, Calophylluminophyllum (Tamanu) seed oil, Camelinasativa (False Flax) seed oil, Camellia oleifera (Camellia) seed oil, Caprylic / capric triglyceride, Carthamus tinctorius (Safflower) seed oil, Coco-caprylate / caprate, Cocos nucifera (Coconut) oil, Corylus avellana(Hazel) Seed Oil, Crambe abyssinica(Crambe) Seed Oil, Gossypiumherbaceum(Cotton) Seed Oil, Helianthus annuus(Sunflower) Seed Oil, Hippophae rhamnoides(Sea Buckthorn) Oil, Isopropyl Myristate, Isononyl Isononanoate, Isopropyl Palmitate, Jojoba Esters, Lanolin Oil and Lanolin Derivatives, Limnanthes Alba(Meadowfoam) Seed Oil, Linum usitatissimum(Linseed) Seed Oil, Macadamia ternifolia(Macadamia) Seed Oil, Moringa oleifera(Moringa) oleifera (Moringa) Seed Oil, Oenothera biennis (Evening Primrose) Oil, Olea europaea (Olive) Fruit Oil, Orbignya oleifera (Babassu) Seed Oil, Oryza sativa (Rice) Germ Oil, Perseagratissima)(Avocado) Oil, Plukenetia volubilis(Sacha inchi) Seed Oil, Prunus amygdalusdulcis(Sweet Almond) Oil, Ricinus communis(Castor) Seed Oil, Rosa canina(Rosehip) Seed Oil, Salvia hispanica(Chia) Seed Oil, Salvia officinalis(Sage) Oil, Schinziophyton rautanenii (Mongongo) kernel oil, Sclerocaryabirrea (Marula) seed oil, Sesamumindicum (Sesame) seed oil, Shorea Robusta (Sal) seed oil, silicones, Simmondsia chinensis (Jojoba) seed oil, squalane, Thymus vulgaris (Thyme) oil, triolein (algae oil), Triticum vulgare (Wheat) germ oil, Vitis vinifera (Grapeseed) oil, Zea mays (Corn) oil, and mixtures thereof.

[0028] The cosmetic compositions disclosed herein may include lipids, including plant-based lipids. The term "butter" is understood by those of ordinary skill in the art to refer to triglycerides having a butter consistency. Exemplary but non-limiting lipids to be used include aloe butter, avocado butter, bacuri butter, cocoa butter, coconut butter, coffee bean butter, asafoetida butter, and citrus fruit butter. butter, hemp seed butter, illipe butter, kokum butter, macadamia nut butter, mango butter, mochacchino butter, murumuru butter, olive butter, pistachio nut butter, refined butter, shea butter, sweet almond butter, tucuma butter and ucuuba butter.

[0029] Waxes and wax esters are generally desirable for use in the disclosed cosmetic compositions. These waxes include waxes derived from petroleum (e.g., paraffin, petrolatum, microcrystalline wax), animal-derived waxes or those from animal by-products (e.g., beeswax, spermaceti, white wax, wool wax, shellac wax), plant-derived waxes (e.g., tribehenin wax, carnauba wax, candelilla wax, bayberry wax, jojoba wax, orange wax, rice bran wax, rose wax, sunflower wax, castor wax, soy wax), mineral waxes (e.g., montan wax, ceresin wax, ozokerite), and synthetic derivatives of natural waxes.

[0030] The oil, lipid, wax or mixture thereof may be added to the composition of the present invention in a total amount of 20 to 50%, or 25 to 45%, or 30 to 40%, or 31 to 37% by weight of the composition. In another aspect, it is provided that the oil, lipid, wax or mixture thereof is selected from or includes candelilla wax, caprylic / capric triglyceride, carnauba wax, cocoa butter, coconut oil, jojoba seed oil, shea butter and sunflower oil. In one aspect of the disclosed cosmetic composition, at least 30% or at least 40% of the oil, lipid or wax is solid at room temperature.

[0031] In one aspect of the disclosed cosmetic composition, the composition is natural or naturally derived.

[0032] The cosmetic compositions disclosed herein include conventionally acceptable emulsifiers for cosmetic use in oil-in-water emulsions. The disclosed emulsifiers include at least one nonionic emulsifier. Exemplary but non-limiting nonionic emulsifiers are those having the following: 10 -C 20 A fatty alcohol or an acid hydrophobe, each mole of the hydrophobe (e.g., cetyl alcohol, stearyl alcohol) condensed with 2 to 100 moles of ethylene oxide or propylene oxide; C 2-C 10 Alkylphenols; mono- and di-fatty acid esters of ethylene glycol; fatty acid monoglycerides; sorbitan, mono- and di-C 8 -C 20 Fatty acids; and polyoxyethylene sorbitan; and combinations thereof. Other exemplary but non-limiting nonionic emulsifiers include glyceryl stearate and ethylene glycol stearate and stearamide AMP. In one aspect, the disclosed cosmetic composition is substantially free of alk(en)yl polyglycosides and their derivatives. Substantially free of alk(en)yl polyglycosides means that the composition contains less than 0.5% by weight, or less than 0.1% by weight, or less than 0.01% by weight, or 0% by weight of alk(en)yl polyglycosides.

[0033] The disclosed cosmetic composition is a leave-on composition intended to be applied to remain on the skin. In terms of emulsifiers, the disclosed cosmetic composition contains mainly nonionic emulsifiers. Optionally, the cosmetic composition may additionally contain anionic emulsifiers, cationic emulsifiers, amphoteric emulsifiers or zwitterionic emulsifiers. Preferred anionic emulsifiers include alkyl ether sulfates and sulfonates, alkyl sulfates and sulfonates, alkylbenzene sulfonates, alkyl and dialkyl sulfosuccinates, C 8 -C 20 Acyl isethionates, C 8 -C 20 Alkyl ether phosphates, alkyl ether carboxylates, and combinations thereof.

[0034] Cationic emulsifiers that can be used include, for example, palmitoyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, and mixtures thereof. Amphoteric emulsifiers that can be used include cocoamidopropyl betaine, C 12 -C 20 Trialkyl betaines, sodium lauroamphoacetate, and sodium lauryl diamphoacetate or mixtures thereof.

[0035] In one aspect, the cosmetic composition comprises 0.1 to 10% of an emulsifier by weight of the cosmetic composition. In another aspect, the cosmetic composition comprises 0.5 to 8%, or 1 to 7% of an emulsifier by weight of the composition. In another aspect, the cosmetic composition comprises 3 to 6% of an emulsifier by weight of the composition. In yet another aspect, the cosmetic composition comprises 5 to 7% of an emulsifier by weight of the composition. Within the scope of the disclosed cosmetic composition, a combination of emulsifiers is used, wherein the combined HLB value is generally in the range of 5 to 15, or 6 to 13. When a water-continuous emulsion is desired, the overall HLB of the one or more emulsifiers used will be 7 to 11, or 8 to 10. In one aspect, the nonionic emulsifiers include glyceryl stearate, ethylene glycol stearate and stearamide AMP, PEG-100 stearate, cetyl alcohol, stearyl alcohol, or mixtures thereof.

[0036] The weight ratio of the total amount of emulsifier to the oil phase is 1:6.5 to 1:3.75, or 1:6.25 to 1:3.8, or 1:6 to 1:4.

[0037] Now, it has been unexpectedly determined that the cosmetic compositions disclosed herein can be substantially free of thickeners. Substantially free of thickeners means that the composition contains less than 0.2% by weight, or less than 0.1% by weight, or less than 0.05% by weight, or less than 0.01% by weight, or 0% by weight of thickeners. Conventional thickeners include water-dispersible polysaccharides, such as acacia senegal gum, agar, agarose, biosaccharide gum, carrageenan, cellulose, gellan gum, guar gum, hyaluronic acid, pectin, sclerotium gum, and xanthan gum; polymeric thickeners, such as polyacrylates, polyacrylamides, polymethacrylates, acrylate copolymers, methacrylate copolymers, acrylamide copolymers, and acryloyldimethyltaurate copolymers; and mixtures thereof.

[0038] One of ordinary skill in the art will be able to readily identify the need for any neutralization. Any pH adjuster known in the art to be acceptable for use in cosmetic and / or pharmaceutical products may be used to obtain a cosmetic composition having a skin-acceptable pH, which is generally in the range of 4 to 8, wherein the pH is determined using a Thermo Fisher Scientific pH meter. In one aspect of the disclosed composition, the pH of the cosmetic composition is 4.25 to 7.5, or 4.5 to 7, or 5 to 6. Conventional buffers or pH adjusters include commonly used additives such as sodium hydroxide, potassium hydroxide, hydrochloric acid, citric acid, triethanolamine, and aminomethyl propanol.

[0039] The cosmetic compositions disclosed herein have a viscosity of 1,000 to 50,000 centipoise (cps), or 5,000 to 40,000 cps, which is the viscosity of the cosmetic compositions at ambient temperature and 10 s -1 The viscosity of the composition is measured by a strain-controlled parallel plate rheometer under a shear rate of 1000 rpm, which is commercially available from suppliers such as TA Instruments under the name of Discovery. Alternatively, the viscosity can also be measured by using a Brookfield viscometer (speed 20 rpm, spindle 5, helipath lift stand closed, at ambient temperature for one (1) minute). In one aspect of the disclosed cosmetic composition, the composition has a viscosity of 9,000 to 25,000 cps or 10,000 to 22,000 cps.

[0040] The optional ingredients that can be used in the disclosed cosmetic composition include preservatives to assist in the growth of potentially harmful microorganisms when preparing the cosmetic composition. Traditional preservatives that can be used include hydantoin derivatives, propionates, and various quaternary ammonium compounds. Other preservatives include potassium sorbate, iodopropynyl butylcarbamate, phenoxyethanol, methylparaben, wasabi-based preservatives, propylparaben, imidazolidinyl urea, sodium gluconate, sodium benzoate, sodium dehydroacetate, and benzyl alcohol. It is desirable that the particularly preferred additives used in the disclosed cosmetic composition are 1,2-alkanediols, such as 1,2-octanediol, 1,2-hexanediol, or mixtures thereof. In one aspect, the cosmetic composition may include a preservative system that does not contain formaldehyde, does not contain parabens, or does not contain both. On the other hand, the cosmetic composition may be preservative-free. In yet another aspect, the cosmetic composition is substantially free of silicones, substantially free of sulfates, or substantially free of their combination. In yet another aspect, the cosmetic composition is free of silicones, free of sulfates, or both.

[0041] Traditional fragrance components such as eugenol, coumarin, linalyl acetate, citronellal, iris concentrate, terpinyl acetate, terpineol, thymol, pinenes (e.g., α-pinene and β-pinene), and citronellol may also be optionally added to the cosmetic composition.

[0042] If used, conventional preservatives, vicinal diols and / or fragrance components will comprise no more than 2% by weight, or no more than 1% by weight of the cosmetic composition. In one aspect, 0.2% to 0.85%, or 0.2% to 0.8% by weight of optional preservatives, vicinal diols and / or fragrance components are used based on the total weight of the cosmetic composition.

[0043] The optional additional ingredients that can be used include sensory oils and / or exfoliants. The desired oils include rose oil, lime oil, coconut oil, lavender oil, argan oil, sweet almond oil, or mixtures thereof. Exemplary exfoliants that are desired to be used include salt powder, sugar powder, apricot powder, walnut shell powder, rice powder, nutmeg powder, and / or oatmeal powder. When used, sensory oils and exfoliants can account for 0.1 to 2% by weight of the cosmetic composition, provided that the total amount of fragrance and sensory oils is no more than 2.5% by weight of the cosmetic composition, or no more than 2% by weight of the composition.

[0044] The cosmetic compositions disclosed herein may include vitamins. Exemplary vitamins are vitamin B 2 , Vitamin B 3 (Niacinamide), Vitamin B 6 , vitamin C, vitamin E, folic acid and biotin. Derivatives of the vitamins may also be used. For example, vitamin C derivatives include ascorbyl tetraisopalmitate, magnesium ascorbyl phosphate and ascorbyl glucoside. Derivatives of vitamin E include tocopheryl acetate, tocopheryl palmitate and tocopheryl linoleate. DL-panthenol and derivatives may also be used. When present, the total amount of vitamins may be 0.001% to 10%, or 0.01% to 5%, or 0.1 to 3% by weight of the cosmetic composition.

[0045] Other optional additives that are desirable include resorcinols, such as 4-ethylresorcinol, 4-hexylresorcinol, 4-phenylethylresorcinol, dimethoxytoluoylpropylresorcinol, 4-cyclopentylresorcinol, 4-cyclohexylresorcinol, thiamidol; α- and / or β-hydroxy acids; retinoic acid and its derivatives (e.g., cis and trans); retinal; retinol; retinyl esters, such as retinyl acetate, retinyl palmitate, and retinyl propionate; petroselinic acid; conjugated linoleic acid; mixtures thereof, etc. Other optional additives may also be included, such as ethanol, quaternary ammonium compounds (e.g., cetrimonium chloride, benzalkonium chloride, etc.). When used, these additives collectively comprise from 0.001 to 3 wt %, or from 0.01 to 2 wt %, or from 0.1 to 1.5 wt % of the cosmetic composition.

[0046] Desquamation promoters may be present. Exemplary are α-hydroxycarboxylic acids, β-hydroxycarboxylic acids. The term "acid" includes not only the free acid but also its salts and C 1 -C 30Alkyl or aryl esters, and lactones produced by removing water to form a cyclic lactone structure or a linear lactone structure. Representative acids are glycolic acid and its derivatives, lactic acid and malic acid. When these materials are present, the amount of these materials can be 0.01 to 3%, or 0.1 to 2% by weight of the cosmetic composition.

[0047] Additionally, optionally, the disclosed cosmetic compositions may include materials such as chelating agents (e.g., EDTA), sunscreens (e.g., TiO 2 , particle size of 50 to 1200nm, or 50 to 350nm), kaolin, bentonite, zinc oxide, iron oxide, mica, C 8-22 Fatty acid substituted sugars, lipoic acid, retinyl trimethylsilane (commercially available from Clariant Corp. under the trademark Silcare 1M-75), dehydroepiandrosterone (DHEA), or mixtures thereof. Ceramides (including ceramide 1, ceramide 3, ceramide 3B and ceramide 6) and pseudoceramides may also be optionally included, and 10- and / or 12-hydroxystearic acid may also be included. When used, the amount of these optional materials may be 0.0001 to 3%, or 0.001 to 2%, or 0.001 to 1.5% by weight of the cosmetic composition.

[0048] Colorants or dyes may also be included in the disclosed compositions. These materials may range from 0.05 to 5%, or 0.1 to 2%, by weight of the composition.

[0049] Sunscreen actives may also be optionally included in the disclosed cosmetic compositions. Particularly desirable are materials such as ethylhexyl p-methoxycinnamate, as Parsol Available; Avobenzene, as Parsol available; and benzophenone-3, also known as oxybenzone. Inorganic sunscreen actives may be used, such as microfine titanium dioxide, zinc oxide, polyethylene, and various other polymers. When present, the amount of the sunscreen agent may generally be 0.01 to 3%, or 0.5 to 2%, or 0.75 to 1.5%, by weight of the cosmetic composition.

[0050] The cosmetic composition disclosed herein comprises:

[0051] a. Starch;

[0052] b. polyols;

[0053] c. Nonionic emulsifier;

[0054] d. an aqueous phase; and

[0055] e. Oil phase,

[0056] wherein the cosmetic composition is aerated with air and / or an inert gas,

[0057] And further wherein the cosmetic composition is an oil-in-water emulsion topically applied to the skin. In one aspect, the cosmetic composition disclosed herein comprises:

[0058] a. Starch;

[0059] b. polyols;

[0060] c. Nonionic emulsifier;

[0061] d. an aqueous phase; and

[0062] e. Oil phase,

[0063] wherein the cosmetic composition is aerated with air and / or an inert gas,

[0064] wherein the cosmetic composition is substantially free of alkyl (enyl) polyglycosides, thickeners, or mixtures thereof,

[0065] And further wherein the cosmetic composition is an oil-in-water emulsion topically applied to the skin. In another aspect, the cosmetic composition disclosed herein comprises:

[0066] a. 0.5 to 5% by weight of starch;

[0067] b. 0.1 to 15 wt %, or 1 to 12 wt % of polyol;

[0068] c. 5 to 7% by weight of nonionic emulsifier;

[0069] d. an aqueous phase; and

[0070] e. Oil phase,

[0071] The cosmetic composition is aerated with air, nitrogen, or a mixture thereof, and has a viscosity of 0.7 to 1.0 g / cm 3 The density of

[0072] In addition, the cosmetic composition is an oil-in-water emulsion for topical application to the skin and is substantially free of alkyl(en)yl polyglycosides, thickeners, or mixtures thereof,

[0073] And the weight ratio of the total amount of emulsifier to the oil phase is 1:6.5 to 1:3.75, preferably 1:6.25 to 1:3.8, and more preferably 1:6 to 1:4.

[0074] In yet another aspect, the cosmetic composition disclosed herein comprises:

[0075] a. 0.5 to 5% by weight of chemically modified starch;

[0076] b. 0.1 to 15 wt %, or 1 to 12 wt % of polyol;

[0077] c. 5 to 7% by weight of nonionic emulsifier;

[0078] d. an aqueous phase; and

[0079] e. Oil phase,

[0080] The cosmetic composition is aerated with air, nitrogen or a mixture thereof, and the cosmetic composition has a concentration of 0.7 to 1.0 g / cm 3 The density of

[0081] wherein the cosmetic composition is an oil-in-water emulsion applied topically to the skin and is substantially free of alkyl(en)yl polyglycosides, thickeners, or mixtures thereof,

[0082] And further wherein the weight ratio of the total amount of emulsifier to the oil phase of the emulsion is 1:6.5 to 1:3.75, preferably 1:6.25 to 1:3.8, more preferably 1:6 to 1:4.

[0083] In yet another aspect, the cosmetic composition disclosed herein comprises:

[0084] a. 0.5 to 5% by weight of hydroxypropyl starch phosphate, tapioca starch or a mixture thereof;

[0085] b. 0.1 to 15% by weight of polyol, preferably 1 to 12% by weight of polyol;

[0086] and

[0087] c. 5 to 7% by weight of a nonionic emulsifier having an average HLB value of 7 to 11;

[0088] d. an aqueous phase; and

[0089] e. Oil phase,

[0090] wherein the cosmetic composition is aerated with air, nitrogen or a mixture thereof,

[0091] The cosmetic composition has a content of 0.7 to 1.0 g / cm 3 The density of

[0092] wherein the cosmetic composition is an oil-in-water emulsion applied topically to the skin and is substantially free of alkyl(en)yl polyglycosides, thickeners, or mixtures thereof,

[0093] The weight ratio of the total amount of additional emulsifiers to the oil phase of the emulsion is 1:6.5 to 1:3.75, preferably 1:6.25 to 1:3.8, and more preferably 1:6 to 1:4.

[0094] The disclosed cosmetic composition also relates to a method for preparing the aerated composition. The method involves preparing an emulsion by combining an oil phase, an aqueous phase, and an emulsifier under conditions of moderate shear of 22°C-85°C to produce an oil-in-water emulsion, and then introducing a gas into the emulsion at a pressure of 50 to 1600 mmHg, or 60 to 1300 mmHg, or 70 to 1000 mmHg, or 80 to 500 mmHg, or 100 to 300 mmHg and a temperature of 22 to 85°C, or 30 to 70°C, or 35 to 60°C to aerate the composition into a tube having a diameter of 0.5 to 4 inches. In one aspect, the introduction of gas occurs by whipping / mixing. In another aspect, the introduction of gas occurs by injection.

[0095] Many types of packaging can be used to store and deliver the cosmetic composition of the present invention. The choice of packaging depends on the personal care end use and the viscosity of the composition itself. For example, disposable emulsions (lotions) and creams (creams) for skin are usually plastic containers, which have an opening covered by a suitable closure at the distribution end. Conventional closures include flip-top hinged lids, screw caps, and non-aerosol pumps. As another example, if the composition is fluid and has a thinner viscosity, suitable packaging for antiperspirants, deodorants, and depilatories includes a container with a roller-ball applicator (roller-ball applicator) at the distribution end. Usually, preferred patches, bottles, tubes, roller-ball applicators, squeeze containers, or wide-mouth bottles with lids are preferred.

[0096] For the avoidance of doubt, the term "comprising" is meant not to be limited to any indicated element, but rather encompasses non-specified elements of major or minor functional importance. Thus, the listed steps, elements or options need not be exhaustive. Whenever "including" or "having" are used, these terms are meant to be equivalent to "comprising" as defined above.

[0097] The term "skin" as used herein includes skin on the face, neck, chest, back, arms, armpits, buttocks, hands, legs and scalp. The skin benefit agent used herein refers to a component that includes improving facial or body features after topical application, such as skin features and / or its benefits, wherein the skin benefit agent can be or is a skin benefit agent in a cream, serum, lotion, balm, deodorant, or a non-foaming or low-foaming washing composition. In one embodiment, the composition is a disposable composition. The cosmetic composition includes a conditioner, an emulsion, a cream, a balm, a deodorant, a shaving cream, a facial mask and a non-foaming cleanser. The term "aerated" means that a gas has been intentionally added to the composition, such as by mechanical means. The term "inflatable" means that a gas can be added to the composition, such as by whipping technology or injection technology. As used herein, "stable" refers to a composition that is not visually observed to have separation after being subjected to 50° C. conditions for 2 weeks, or 4 weeks. As used herein, "aqueous phase" refers to a phase having at least 80 wt%, or 90 wt%, or 100 wt% water.

[0098] All states of matter used herein, such as solid, liquid and gas, relate to the specified state of matter at 25°C and atmospheric pressure. In this article, reference to density should be understood as the density measured at 25°C and atmospheric pressure using standard methods. As used herein, "low density" refers to a density between 0.5 and 1.4 g / cm when measured at 25°C and atmospheric pressure. 3 , or 0.6 to 1.1 g / cm 3 , or 0.7 to 1.0 g / cm 3 , or 0.8 to 0.95 g / cm 3 , or 0.8 to 0.9 g / cm 3 The density of the composition is within the range of . As used herein, "substantially free of thickener" means that the composition contains less than 0.2% by weight, or less than 0.1% by weight, or less than 0.05% by weight, or less than 0.01% by weight, or 0% by weight of thickener. As used herein, "substantially free of alk(en)yl polyglycosides" means that the composition contains less than 0.5% by weight, or less than 0.1% by weight, or less than 0.01% by weight, or 0% by weight of alk(en)yl polyglycosides.

[0099] Except in the examples, or where otherwise explicitly indicated, all numbers in this specification indicating amounts of material are to be understood as modified by “about.” All amounts are by weight of the total composition, unless otherwise indicated.

[0100] Now the cosmetic compositions will be described below in specific non-limiting examples to facilitate a better understanding of the cosmetic compositions of the present invention. One of ordinary skill in the art will recognize that variations of the compositions of the present invention different from the given examples can be implemented without departing from the teachings of the compositions of the present invention.

[0101] Example

[0102] All samples were prepared by mixing the mentioned ingredients under conditions of moderate shear, 22°C to 85°C, and atmospheric pressure.

[0103] Example 1: Sample Formulation

[0104]

[0105] According to the disclosed cosmetic composition, a cosmetic composition was prepared by combining the above ingredients. Compressed air was injected into each sample to produce an aerated product. Samples A to C and G illustrate compositions within the scope of the disclosed cosmetic composition that unexpectedly produce a whipped appearance and / or about 0.85 kg / m 3 Samples D to F illustrate compositions inconsistent with the disclosed cosmetic compositions, resulting in unstable compositions that are separate and flat and undesirably compressed.

[0106] *"Visual appearance" and "whipped" means having an aerated feel and appearance, and feeling lighter and more spreadable than compositions not prepared according to the disclosed cosmetic compositions, as determined by a skilled laboratory panelist.

Claims

1. A cosmetic composition in the form of an aerated oil-in-water emulsion, comprising: a. Starch; b. Polyols; c. Nonionic emulsifier; d. an aqueous phase; and e. Oil phase, in, The weight ratio of the total amount of emulsifier to the oil phase of the emulsion is 1:6.5 to 1:3.75, preferably, 1:6.25 to 1:3.8, more preferably, 1:6 to 1:4; Wherein, when measured at 25°C and atmospheric pressure, the cosmetic composition has a viscosity of 0.5 to 1.3 g / cm 3 , preferably, 0.6 to 1.1 g / cm 3 , preferably, 0.7 to 1.0 g / cm 3 density; wherein the cosmetic composition contains less than 0.2% by weight of a thickener selected from: water-dispersible polysaccharides selected from acacia senegal gum, agar, agarose, biosaccharide gum, carrageenan, cellulose, gellan gum, guar gum, hyaluronic acid, pectin, sclerotium gum and xanthan gum; polymeric thickeners selected from polyacrylates, polyacrylamides, polymethacrylates, acrylate copolymers, methacrylate copolymers, acrylamide copolymers, and acryloyldimethyltaurate copolymers; and mixtures thereof; wherein the composition has gas bubbles dispersed therein; wherein the bubbles account for 5 to 35% by volume of the composition, preferably 7 to 30%, more preferably 10 to 25%; Wherein, the bubbles are from air, carbon dioxide, nitrogen, nitrous oxide, or a mixture thereof; And wherein the composition is obtained by a method comprising the following steps: a. preparing an oil-in-water emulsion by emulsifying the oil phase into the aqueous phase under moderate shear conditions at atmospheric pressure and a temperature of 22°C to 85°C; and b. introducing the gas into the emulsion by a whipping technique or an injection technique at a temperature of 50 to 1600 mmHg, preferably 60 to 1300 mmHg, more preferably 70 to 1000 mmHg and 22°C to 85°C to aerate the composition into a tube having a diameter in the range of 0.5 to 4 inches.

2. The cosmetic composition according to claim 1, wherein the polyol comprises glycerol, butylene glycol, sorbitol, or a mixture thereof, and wherein the cosmetic composition comprises 0.1 to 15%, preferably 1 to 12% of the polyol by weight of the cosmetic composition.

3. The cosmetic composition according to any one of the preceding claims, wherein the starch is a natural starch, a chemically modified starch, or a mixture thereof.

4. The cosmetic composition according to any one of the preceding claims, wherein The cosmetic composition comprises 0.1 to 3%, preferably 0.25 to 2% starch by weight of the cosmetic composition.

5. The cosmetic composition according to any one of the preceding claims, wherein the cosmetic composition comprises 0.1 to 10%, preferably 0.5 to 8%, of a nonionic emulsifier by weight of the cosmetic composition, and wherein the nonionic emulsifier has an average HLB value of 7 to 11.

6. The cosmetic composition according to any one of the preceding claims, wherein the nonionic emulsifier comprises glyceryl stearate, ethylene glycol stearate and stearamide AMP, PEG-100 stearate, cetyl alcohol, stearyl alcohol, or mixtures thereof.

7. A cosmetic composition according to any one of the preceding claims, wherein The amount of the aqueous phase is 30 to 80%, preferably 35 to 75%, more preferably 40 to 70% by weight of the cosmetic composition.

8. A cosmetic composition according to any one of the preceding claims, wherein The oil phase comprises a total amount of oil, butter, wax, or mixtures thereof in the range of 20 to 50%, preferably 25 to 45% by weight of the composition.

9. The cosmetic composition according to any one of the preceding claims, wherein the oil phase comprises candelilla wax, caprylic / capric triglyceride, carnauba wax, cocoa butter, coconut oil, jojoba seed oil, shea butter, sunflower oil, or mixtures thereof, and wherein at least 30%, preferably at least 40%, of the oil phase is solid at room temperature.

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