KR20070018020A - Personal cleansing compositions - Google Patents

Abstract

The present invention is a foamable cleaning composition comprising an alkyl ethoxylated polymer, at least one foamable surfactant, acrylate crosslinked copolymer and particulate material and foamable surfactant. The composition has good foaming properties and is easily rinsed off. The particulate material enhances cleansing and peeling or provides a conditioning effect without damage and / or irritation.

Cleaning, compositions, surfactants, crosslinking, foaming, particulates

Description

PERSONAL CLEANSING COMPOSITIONS

The present invention relates to a foamable personal cleansing composition that is hypoallergenic, has excellent cleaning power, and has good rinsing power from skin, hair, and the like.

Personal cleansing compositions have become an important part of routine hygiene for most of both women and men worldwide. However, it should be appreciated that some cleaners, especially facial cleaners, are good at removing sebum and dirt from skin and hair, but may also cause injury or damage the surfaces being cleaned in the form of skin irritation.

Formulators are required to reduce irritation and damage caused by rub scrubbing, without compromising the cleaning power of the formulation. In order to maintain sufficient cleansing action and / or peeling, such formulations often include particulates such as beads and encapsulated materials to replace coarse surfactants. In addition to cleaning, preparations are also required to condition hair and skin with minimal damage and irritation. To achieve this, the formulators suspend particles and / or droplets of substances such as oil or petroleum jelly to provide a conditioning effect. However, particulate and oil droplets should be suspended in these compositions to minimize migration (upward or downward) in the package in which they are sold. This can most easily be done in a thick foam free composition, but consumers often want a foamable product that is still based on a mild surfactant and has good spreading and cleaning properties.

Suspension of particulates such as beads, capsules and / or droplets of materials in this type of formulation is often accomplished through the use of suspension polymers. Suspension polymers known in the art for this purpose include acrylate crosslinked acid copolymers. These materials are manufactured and sold by many suppliers, including Noveon ™, Inc. Noveon's sales report shows that the "granularity" due to polymer agglomeration with respect to the gel composition and / or post-neutralization step of the composition in which small additions of polyols such as glycerin or polyethylene glycol leads to salt formation ( graininess can be reduced (see "Polymer For Personal Care, Carbopol EDT Resins: Formulation Tips", March 1994).

Despite the above advantages described by Noveon ™, the use of such suspending agents in cleaning compositions can also affect the user's perception of rinsing the cleaning agent from skin and hair. Thorough consumer research has shown that when using these suspension polymers in cleaning compositions, consumers have the perception that the compositions do not sufficiently foam and / or are not easily rinsed. In fact, it is not unusual for a consumer to have the impression that these compositions feel sticky and / or are not easily rinsed after use.

It is also noted that the combination of surfactants is also important for consumer satisfaction. Consumers appreciate a surfactant system that provides plenty of foam and is gentle on the skin. Compared to anionic surfactants, high levels of amphoteric and / or zwitterionic surfactants are important for achieving mildness. However, high levels of amphoteric and / or zwitterionic surfactants typically result in high levels of salts that negatively affect the suspension capacity of the polymeric suspension system. Because of their inability to suspend, many of these compositions are not yet commercially available. Accordingly, there is a consumer demand for a cleansing or rubbing cleansing conditioning composition that easily rinses from hair and skin while providing sufficient foam.

Summary of the Invention

The present invention is a foamable cleaning composition comprising an alkyl ethoxylated polymer, at least one foamable surfactant, acrylate crosslinked copolymer, and particulate material. These compositions have good foaming properties and are easily rinsed off. The particulate material not only improves cleaning and peeling but also provides a conditioning effect without damage or irritation.

All percentages described herein are by weight of the referred materials themselves present in the composition, unless stated otherwise, thereby excluding weights associated with, for example, carriers, impurities and by-products present in the raw materials.

Alkyl Ethoxylation  polymer

The composition of the present invention comprises an alkyl ethoxylated polymer selected from the group consisting of di-alkyl, tri-alkyl-, and alkyl ethoxylated polymers substituted with a combination of di-alkyl and tri-alkyl. Alternatively, alkyl ethoxylated polymers substituted with mono-alkyl, di-alkyl, tri-alkyl, tetra-alkyl and all combinations thereof. Alkyl groups may be saturated or unsaturated branched or linear and may contain from about 12 carbon atoms to about 50 carbon atoms. The number of moles of ethylene oxide is greater than about 20, alternatively greater than about 40. Such polymers are at levels of about 0.2% to about 1.0%, alternatively about 0.1% to about 2.0%, and alternatively about 0.05% to about 5.0% of the composition.

Alkyl substitution of alkyl ethoxylated polymers includes mono-alkyl, di-alkyl, tri-alkyl and tetra-alkyl substitutions of the polymer and combinations thereof. Examples of mono alkyl substituted polymers include Steareth-100, New Phase Technologies, Inc., available as Brij 700® from Uniqema Inc. , Pareth alcohol, available from Performathox 480® and 490® from Inc. Di-alkyl substituted polymers include PEG 120 methyl glucose dioleate, both available as Glutamate DOE-120® and Glutamate DOE-120® from Chemron Corporation. Tri-alkyl substituted polymers include PEG 120 methyl glucose trioleate, available as Glucamate LT® from Chemron Corporation. Tetra-alkyl substituted polymers include PEG 150 pentaerythritol tetrastearate, available as Crotix® from Croda Corporation. In the present invention, conventional substitutions are di-alkyl, tri-alkyl or tetra-alkyl substitutions of the polymer, and combinations thereof. Even more common substitutions are di-alkyl, tri-alkyl substitutions of the polymer and combinations thereof.

Crosslinked copolymer

The composition of the present invention comprises a crosslinked copolymer selected from the group consisting of crosslinked acid copolymers, crosslinked maleic anhydride copolymers and combinations thereof.

The crosslinked copolymers of the present invention are typically used to thicken or suspend cosmetic preparations in compositions such as shampoos, lotions and creams, or other products having an aqueous electrolyte containing environment. In the present invention, the crosslinked copolymer is present at a level of about 1% to about 2%, alternatively about 0.5% to about 3% or about 0.1% to about 5% by weight of the composition.

In the present invention, the crosslinked acid copolymer includes an alkyl substituted acid copolymer. One class of alkyl substituted copolymers is a fluid control air containing a crosslinked copolymer selected from the group consisting of unsaturated carboxylic acids, hydrophobic monomers, hydrophobic chain transfer agents, crosslinkers, steric stabilizers, and combinations thereof. It includes a rheology modifying copolymer. Carbopol EDT 2020 ™ from Noveon ™ is an example of such a suspending agent. Details of such suspending agents can be found in US Pat. No. 6,433,061 to Marchant et al. On August 13, 2002.

Another class of copolymers includes substantially crosslinked alkali-swellable acrylate copolymers described in US Pat. No. 6,635,702. The Carbopol Aqua (Aqua) SF-1 ^™ from the furnace beon ^™ is an example of this type of suspensions. Another class of commercially available copolymers useful in the present invention is the aerial of C _10-30 alkyl acrylates with one or more monomers of one of acrylic acid, methacrylic acid or their short chain (ie C _1-4 alcohol) esters. Coalescing, wherein the crosslinker is allyl ether of sucrose or pentaerythritol. These copolymers are known as acrylates / C _10-30 alkyl acrylate crosslinked copolymers, Carbopol® 1342, Pemulen® TR-1 and Pemulen from Noveon ™ It is available as a TR-2. Another class of copolymers includes copolymers that correspond to the class of acrylate / vinyl alkyl crosslinked copolymers available as Stabylen® 30 from 3V, Inc. .

Crosslinked maleic anhydride copolymers include crosslinked C ₁ -C ₁₀ alkyl vinyl ether / maleic anhydride copolymers. Stabilez QM ™ from ISP Corporation is an example of this type of material. In order to be effective, maleic anhydride fragments of such copolymers need to be at least partially neutralized so that the copolymer becomes an anion.

Particularly useful crosslinked crosslinked copolymers include crosslinked and alkyl substituted acid copolymers and alkali-swellable acrylate copolymers.

As described in Noveon's Technical Data Sheet # 244, the suspending ability of the formulation can be approximated by yield value measurements. One method is the Brookfield yield value extrapolation. The Brookfield Yield Value (hereinafter BYV) is calculated by the following equation:

Here, η ₁ and η ₂ are the apparent viscosities of the samples measured at spindle speeds of 0.5 rpm and 1.0 rpm, respectively.

To determine BYV for compositions having a viscosity at 20 RPM of about 5 Pa.s (5,000 cP) to about 25 Pa.s (25,000 cP), a Brookfield viscometer with RV2 and RV3 spindles is used. As is known to those skilled in the art, in order to successfully suspend a material in a composition, as represented by Stokes Law, the BYV of such a composition is the relationship between the difference in density of the dispersed and continuous phases and the particle size of the suspended material. Depends on. In the present invention, BYV is greater than about 150 dyn / cm 2, Alternatively about 100 dyn / cm 2 Excess, Alternatively about 75 dyn / cm 2 Excess, And alternatively about 50 dyn / cm 2 Excess.

Particulate matter

Particulate materials used in the present invention may generally be classified into one of two groups. These groups include (1) detergents or peelers, and (2) conditioning agents.

Particulate cleaners or peelers may be derived from a wide variety of materials, including those derived from inorganic, organic, natural and synthetic sources.

Particulate cleaners or dermabrasives of the invention typically comprise from about 1% to 5%, alternatively from about 0.5% to about 15% and alternatively from about 0.1% to about 30% by weight of the composition. . Non-limiting examples of these materials include almond mill, alumina, aluminum oxide, aluminum silicate, apricot seed powder, attapulgite, barley flour, bismuth oxychloride, boron nitride, calcium carbonate, calcium phosphate, pyrophosphate Calcium, Calcium Sulfate, Cellulose, Chalk, Chitin, Clay, Corn Mill, Corn Powder, Corn Flour, Corn Mill, Corn Starch, Diatomaceous Earth, Dicalcium Phosphate, Dicalcium Phosphate Dihydrate, White Soil, Hydrated Silica, Hydroxyapatite , Iron oxide, jojoba seed powder, kaolin, loofah, magnesium trisilicate, mica, microcrystalline cellulose, montmorillonite, oat bran, oat powder, oatmeal, peach seed powder, pecan husk powder, polybutylene, polyethylene, polyiso Butylene, Polymethylstyrene, Polypropylene, Polystyrene, Polyurethane, Nylon, Teflon (ie Polytetrafluoroethylene), Polyhalogenated Olefin, Pumice (pu rice bran, rye flour, sericite, silica, silk, sodium bicarbonate, sodium silicoaluminate, soy flour synthetic hectorite, talc, tin oxide, titanium dioxide, calcium triphosphate, walnut shell powder, wheat steel (wheat bran), wheat flour, wheat starch, zirconium silicate and mixtures thereof. Particles made from mixed polymers (e.g. copolymers, terpolymers, etc.), inter alia polyethylene / polypropylene copolymers, polyethylene / propylene / isobutylene copolymers, polyethylene / styrene copolymers, and mixtures thereof Are useful. Typically, polymer and mixed polymer particles are processed through an oxidation process to remove impurities and the like. The polymer and mixed polymer particles may also optionally be crosslinked with various conventional crosslinkers, including but not limited to butadiene, divinyl benzene, methylenebisacrylamide, allyl ether of sucrose, allyl of pentaerythritol Ethers, and mixtures thereof. Other examples of useful particles include waxes and resins such as paraffin, canuba wax, azekerite wax, candelilla wax, urea-formaldehyde resins and the like. When such waxes and resins are used in the present invention, it is important that these materials are solid at ambient and skin temperatures.

Preferred water-insoluble particulate materials useful in the present invention include synthetic polymeric particles and oils. Synthetic polymeric particles useful in the present invention are selected from the group consisting of polybutylene, polyethylene, polyisobutylene, polymethylstyrene, polypropylene, polystyrene, polyurethane, nylon, Teflon and mixtures thereof.

Oils suitable for use in the present invention include any natural and synthetic material having an overall solubility parameter of less than about 12.5 (dl / cm 3), preferably less than about 11.5 (dl / cm 3). The “total solubility parameter” indicates that when blending this oil with other oils using an oil having a solubility parameter greater than 12.5 (dl / cm 3), the overall solubility parameter of the oil mixture may be reduced to less than about 12.5 (dl / cm 3). Means that. For example, some diethylene glycol (solubility parameter = 13.61) can be blended with lanolin oil (solubility parameter = 7.3) and a cosolublizing agent to produce a mixture having a solubility parameter of less than 12.5 dl / cm 3.

The solubility parameters of oils described herein are measured by methods known in the chemical art to establish the relative polarity characteristics of the materials. A description of solubility parameters and how to measure them is provided in C. D. Vaughn, Solubility Effects in Product, Package, Penetration and Preservation 103 Cosmetics and Toiletries 47-69, October 1988; And in C. D. Vaughn, Using Solubility Parameters in Cosmetics Formulation, 36 J. Soc. Cosmetic Chemists 319-333, September / October, 1988.

Conditioning particulate materials of the invention typically range from about 2% to 15%, alternatively from about 1% to about 20%, alternatively from about 0.5% to about 30%, and alternatively by weight of the composition About 0.1% to about 50%. Such oils include hydrocarbon oils and waxes, silicones, fatty acid derivatives, cholesterol, cholesterol derivatives, diglycerides, triglycerides, vegetable oils, vegetable oil derivatives, acetoglyceride esters, alkyl esters, alkenyl esters, lanolin and derivatives thereof. , Wax esters, beeswax derivatives, sterols and phospholipids, and combinations thereof, but are not limited to these.

Non-limiting examples of hydrocarbon oils and waxes suitable for use in the present invention include petroleum jelly, mineral oil, microcrystalline wax, polyalkene, paraffin, cerasin, wax, polyethylene, perhydrosqualene, poly alpha olefin, hydrogenated polyisobutene, and A combination of these.

Non-limiting examples of silicone oils suitable for use in the present invention include dimethicone copolyols, dimethylpolysiloxanes, diethylpolysiloxanes, mixed C ₁ -C ₃₀ alkyl polysiloxanes, phenyl dimethicone, dimethiconol, and their Combinations are included. Preferred are nonvolatile silicones selected from dimethicone, dimethiconol, mixed C ₁ -C ₃₀ alkyl polysiloxanes, and combinations thereof. Non-limiting examples of silicone oils useful in the present invention are described in US Pat. No. 5,011,681 (Ciotti et al.).

Non-limiting examples of diglycerides and triglycerides suitable for use in the present invention include castor oil, soybean oil, derived soybean oil, such as maleated soybean oil, safflower oil, cottonseed oil, corn oil, walnut oil, peanut oil, Olive oil, cod liver oil, almond oil, avocado oil, palm oil and sesame oil, vegetable oil, sunflower seed oil and vegetable oil derivatives; Coconut oil and derivatized coconut oil, cottonseed oil and derivatized cottonseed oil, jojoba oil, cocoa butter, and combinations thereof. Also suitable are any of the above oils, partially or fully hydrogenated.

Non-limiting examples of acetoglyceride esters suitable for use in the present invention include acetylated monoglycerides.

Non-limiting examples of alkyl esters suitable for use in the present invention include isopropyl esters of fatty acids and long chain esters of long chain fatty acids such as SEFA (sucrose ester of fatty acids). Non-limiting examples of lauryl pyrrolidone carboxylic acid, pentaerythritol esters, aromatic mono, die or triesters, and cetyl ricinoleate include isopropyl palmitate, isopropyl myristate, cetyl liconoleate and stearyl Ricinoleate is mentioned. Other examples are hexyl laurate, isohexyl laurate, myristyl myristate, isohexyl palmitate, decyl oleate, isodecyl oleate, hexadecyl stearate, decyl stearate, isopropyl isostearate, diisopropyl adiate Pate, diisohexyl adipate, dihexyldecyl adipate, diisopropyl sebacate, acyl isononanoate lauryl lactate, myristyl lactate, cetyl lactate and combinations thereof.

Non-limiting examples of alkenyl esters suitable for use in the present invention include oleyl myristate, oleyl stearate, oleyl oleate and combinations thereof.

Non-limiting examples of lanolin and lanolin derivatives suitable for use in the present invention include lanolin, lanolin oil, lanolin wax, lanolin alcohol, lanolin fatty acid, isopropyl lanoleate, acetylated lanolin, acetylated lanolin alcohol, lanolin alcohol linoleate, Lanolin alcohol ricinoleate, hydroxylated lanolin, hydrogenated lanolin and combinations thereof.

Still other suitable oils include milk triglycerides (eg hydroxylated milk glycerides) and polyol fatty acid polyesters.

Still other suitable oils include wax esters, including but not limited to beeswax and beeswax derivatives, beeswax, myristyl myristate, stearyl stearate, and combinations thereof. Also useful are vegetable waxes such as carnauba and candelilla waxes; Sterols such as cholesterol, cholesterol fatty acid esters; And phospholipids such as lecithin and derivatives, sphingolipids, ceramides, glycosphingolipids and combinations thereof.

Conditioning agents useful in the present invention are selected from the group consisting of droplets of emollient oil, skin care actives, vitamins, capsules and mixtures thereof. The capsules are generally made of gelatin, agar or water-insoluble polymers and may contain softening oils, vitamins, colored pigments, and additional ingredients such as hair and skin actives as described below. The particle size of these capsules ranges from about 5 to about 3000 microns.

Foaming Surfactant

The article of the invention also includes one or more foaming surfactants. Foaming surfactant as defined herein means a surfactant that, when combined with water, produces a foam or foam when mechanically stirred. Preferably, these surfactants or combinations thereof should be mild, meaning that these surfactants provide a sufficient cleansing or cleaning effect but still meet the aforementioned foaming criteria without making the skin or hair excessively dry. .

A wide variety of foaming surfactants are useful in the present invention and include those selected from the group consisting of anionic foaming surfactants, nonionic foaming surfactants, amphoteric foaming surfactants, and mixtures thereof. In general, foaming surfactants are quite water soluble. When used in the composition, at least about 4% foaming surfactant has an HLB value greater than about 10. Examples of such surfactants are described in US Pat. No. 5,624,666 to Coffindaffer et al., Issued April 29, 1997. Cationic surfactants may also be used as optional components, provided that cationic surfactants do not adversely affect the overall foaming properties of the required foaming surfactants.

The concentration of such surfactant is about 10% to about 20%, alternatively about 6% to about 25%, and alternatively about 4% to 30% by weight of the composition. To avoid skin irritation problems, the ratio of anionic surfactant to amphoteric and / or zwitterionic surfactants based on the weight of the composition is from about 1.1: 1 to about 1: 1.5, alternatively from about 1.25: 1 to about 1 : 2, and alternatively between about 1.5: 1 and about 1: 3.

Non-limiting examples of anionic foaming surfactants useful in the compositions of the invention are described in McCutcheon's, Detergents and Emulsifiers, North American edition (1986), published by allured Publishing Corporation; McCutcheon's, Functional Materials, North American Edition (1992); And US Patent No. 3,929,678 to Laughlin et al. On December 30, 1975. Non-limiting examples of anionic foaming surfactants include those selected from the group consisting of sarcosinates, sulfates, sulfonates, isethionates, taurates, phosphates, lactylates, glutamate, and mixtures thereof. Among the isethionates, alcoholic isethionates are preferred, and among sulfates, alkyl and alkyl ether sulfates are preferred. Alkoyl isethionates are typically of the formula RCO-OCH ₂ CH ₂ SO ₃ M, wherein R is branched or linear and has from about 10 to about 30 carbon atoms, preferably less than 20, most preferably 18 Alkyl or alkenyl, and M is a water soluble cation such as ammonium, sodium, potassium and triethanolamine. Non-limiting examples of such isethionates include alkoyl isethionates selected from the group consisting of ammonium cocoyl isethionate, sodium cocoyl isethionate, sodium lauroyl isethionate and mixtures thereof.

Alkyl and alkyl ether sulfates are typically of the formula ROSO ₃ M and RO (C ₂ H ₄ O) _x SO ₃ M, where R is branched or linear, with about 10 to about 30 carbon atoms, preferably about Less than 20, most preferably less than about 18 alkyl or alkenyl, x is from about 1 to about 10, M is a water soluble cation such as ammonium, sodium, potassium and triethanolamine. Another suitable class of anionic surfactants are water soluble salts of organic sulfuric acid reaction products of the general formula:

R1--SO ₃ --M

Wherein R 1 is selected from the group consisting of straight or branched chain saturated aliphatic hydrocarbon radicals having about 8 to about 24, preferably about 10 to about 16 carbon atoms; M is a cation. Still other anionic synthetic surfactants include succinamate, olefin sulfonates having about 12 to about 24 carbon atoms, and the class represented by b-alkyloxy alkane sulfonates. Examples of these materials are sodium lauryl sulfate and ammonium lauryl sulfate.

Other anionic materials useful in the present invention are typically soaps (ie, alkali metal salts, such as sodium or potassium salts) of fatty acids having about 8 to about 24 carbon atoms, preferably about 10 to about 20 carbon atoms. Fatty acids used to make soaps are natural sources such as, for example, glycerides derived from plants or animals (eg palm oil, coconut oil, soybean oil, castor oil, tallow, lard, etc.). Can be obtained from Fatty acids can also be prepared synthetically. Soaps are described in more detail in US Pat. No. 4,557,853, cited above.

Other anionic materials include phosphates such as monoalkyl, dialkyl and trialkyl phosphate salts.

Other anionic materials include the formula RCON (CH ₃ ) CH ₂ CH ₂ CO ₂ M (where R is alkyl or alkenyl having about 10 to about 20 carbon atoms, and M is ammonium, sodium, potassium and trialkanolamine Water-soluble cations such as (eg, triethanolamine), preferred examples of which are sodium lauroyl sarcosinate, sodium cocoyl sarcosinate, ammonium lauroyl sarcosinate, and sodium myristoyl sarcosinate Alkanoyl sarcosinate). TEA salts of sarcosinates are also useful.

Taurates based on taurine, also known as 2-aminoethanesulfonic acid, are also useful. Particularly useful are taurates having a carbon chain of C ₈ to C ₁₆ . Examples of taurates include N-alkyltaurines such as those prepared by reacting dodecylamine with sodium isethionate in accordance with the teachings of US Pat. No. 2,658,072, which is incorporated herein by reference in its entirety. Further non-limiting examples include the ammonium, sodium, potassium and alkanolamine (eg, triethanolamine) salts of cocoyl methyl taurate, myristoyl methyl taurate, and lauroyl methyl taurate. .

Lactylates, especially lactylates with carbon chains of C ₈ to C ₁₆ , are also useful. Non-limiting examples of lactylates include ammonium, sodium, potassium and alkanolamine (eg, triethanolamine) salts of caproyl lactylate, lauroyl lactylate, cocoyl lactylate, and lauroyl lactylate This includes.

Glutamate, in particular glutamate having C ₈ to C ₁₆ carbon chains, is also useful in the present invention as anionic surfactants. Non-limiting examples of glutamate include the ammonium, sodium, potassium and alkanolamine (eg, triethanolamine) salts of cocoyl glutamate, myristoyl glutamate, and lauroyl glutamate.

Non-limiting examples of preferred anionic foaming surfactants useful in the present invention include sodium lauryl sulfate, ammonium lauryl sulfate, ammonium laurate sulfate, sodium laureth sulfate, sodium trideset sulfate, ammonium cetyl sulfate, sodium cetyl sulfate , Ammonium cocoyl isethionate, sodium lauroyl isethionate, sodium lauroyl lactylate, triethanolamine lauroyl lactylate, sodium caproyl lactylate, sodium lauroyl sarcosinate, sodium myristoyl Group consisting of sarcosinate, sodium cocoyl sarcosinate, sodium lauroyl methyl taurate, sodium cocoyl methyl taurate, sodium lauroyl glutamate, sodium myristoyl glutamate and sodium cocoyl glutamate, and mixtures thereof Included are those selected from.

Amphoteric or zwitterionic cleaning surfactants suitable for use in the compositions of the present invention include those known to be used for hair care or other personal care cleaning. The concentration of the amphoteric cleansing surfactant is from about 1% to about 10%, alternatively from about 0.5% to about 20% by weight of the composition. Non-limiting examples of suitable zwitterionic or amphoteric surfactants are described in US Pat. No. 5,104,646 (Bolich Jr. et al.) And US Pat. No. 5,106,609 (Bolich Jr. et al.).

Amphoteric cleansing surfactants suitable for use in the personal care compositions of the present invention are well known in the art, wherein the aliphatic radicals may be straight or branched and one of the aliphatic substituents contains about 8 to about 18 carbon atoms One includes those broadly described as derivatives of aliphatic secondary and tertiary amines containing anionic water soluble groups such as carboxy, sulfonate, sulfate, phosphate, or phosphonate. Preferred amphoteric cleansing surfactants for use in the present invention are selected from the group consisting of coco ampoacetate, coco ampodiacetate, lauro ampoacetate, lauro ampoacetate, and mixtures thereof.

Commercially available amphoteric surfactants include the trade name Miraranol C2M Conc. N.P., Miranol C2M Conc. O.P., Miranol C2M SF, Miranol CM Special, Miranol Ultra (Rhodia, Inc.); Alkateric 2CIB (Alkaril Chemicals); Amphoterge W-2 (Lonza, Inc.); Monateric CDX-38, Monateric CSH-32 (Mona Industries); Rewoteric AM-2C (Rewo Chemical Group); And those sold under Schercoteric MS-2 (Scher Chemicals).

Suitable zwitterionic cleaning surfactants for use in the present invention may include linear or branched aliphatic radicals, one of the aliphatic substituents containing from about 8 to about 18 carbon atoms, one of which is an anionic group, such as carboxy, Included broadly as derivatives of aliphatic quaternary ammonium, phosphonium and sulfonium compounds, including sulfonates, sulfates, phosphates or phosphonates. Preferred zwitterionic cleaning surfactants are betaines and sulfobetaes, such as cocoamidopropylbetaine and cocoamidopropylhydroxysulfyne.

Non-limiting examples of nonionic surfactants useful in the compositions of the present invention are both incorporated by reference in the context of McCutcheon's, Detergents and Emulsifiers, North American edition (1986), published by allured Publishing Corporation; And McCutcheon's, Functional Materials, North American Edition (1992). Nonionic foaming surfactants useful in the present invention are selected from the group consisting of alkyl glucosides, alkyl polyglucosides, polyhydroxy fatty acid amides, alkoxylated fatty acid esters, foaming sucrose esters, amine oxides and mixtures thereof. Include.

Alkyl glucosides and alkyl polyglucoside and is useful in the present invention, this long-chain alcohols, such as C _{8 -30} or starches or sugar or starch, sugar, and an alcohol of the polymer, that is, broadly defined as condensation products of poly glucosides or glycosides Can be. Such compounds are of the formula (S) _n -OR where S is a sugar moiety such as glucose, fructose, mannose and galactose; n is an integer from about 1 to about 1000 and R is a C _8-30 alkyl group It can be represented as. Examples of the long chain alcohol from which the alkyl group can be derived include decyl alcohol, cetyl alcohol, stearyl alcohol, lauryl alcohol, myristyl alcohol, oleyl alcohol and the like. Preferred examples of such surfactants include those in which S is a glucose moiety, R is a C _8-20 alkyl group and n is an integer from about 1 to about 9. Commercially available examples of such surfactants include decyl polyglucoside (available as APG 325 CS from Henkel) and lauryl polyglucoside (available as APG 600 CS and 625 CS from Henkel). Also useful are sucrose ester surfactants such as sucrose cocoate and sucrose laurate.

Other useful nonionic surfactants include polyhydroxy fatty acid amide surfactants, more specific examples of which include glucoseamides corresponding to the formula:

Wherein R ¹ is H, C ₁ -C ₄ alkyl, 2hydroxyethyl, 2hydroxy propyl, preferably C ₁ -C ₄ alkyl, more preferably methyl or ethyl, most preferably methyl; R ² is C ₅ -C ₃₁ alkyl or alkenyl, preferably C ₇ -C ₁₉ alkyl or alkenyl, more preferably C ₉ -C ₁₇ alkyl or alkenyl, most preferably C ₁₁ -C ₁₅ alkyl Or alkenyl; Z is a polyhydroxy hydrocarbyl moiety having a linear hydrocarbyl chain to which at least three hydroxyls are directly linked, or an alkoxylated derivative thereof (preferably ethoxylated or propoxylated). Z is preferably a sugar moiety selected from the group consisting of glucose, fructose, maltose, lactose, galactose, mannose, xylose and mixtures thereof. Particularly preferred surfactants corresponding to this structure are coconut alkyl Nmethyl glucoside amides (ie the R ² CO- moiety is derived from coconut oil fatty acids). Methods for preparing compositions containing polyhydroxy fatty acid amides are described, for example, in British Patent Specification No. 809,060 to Thomas Hedley & Co., Ltd., published February 18, 1959; Lee on December 20, 1960. egg. U. S. Patent No. 2,965, 576 to ER Wilson, on March 8, 1955. M. US Pat. No. 2,703,798 to AM Schwartz, US Pat. No. 1,985,424 to Pigott on December 25, 1934, which is incorporated herein by reference in its entirety. Included.

Other examples of nonionic surfactants include amine oxides. The amine oxide is a general formula R ¹ R ² R ³ NO, wherein R ¹ is an alkyl, al having from about 8 to about 18 carbon atoms, 0 to about 10 ethylene oxide moieties, and 0 to about 1 glyceryl moiety. Containing a kenyl or monohydroxy alkyl radical, and R ² and R ³ are about 1 to about 3 carbon atoms and 0 to about 1 hydroxy group, for example methyl, ethyl, propyl, hydroxyethyl or hydroxy Propyl radicals). Examples of amine oxides suitable for use in the present invention include dimethyl-dodecylamine oxide, oleyldi (2-hydroxyethyl) amine oxide, dimethyloctylamine oxide, dimethyl-decylamine oxide, dimethyl-tetra Decylamine oxide, 3,6,9-trioxaheptadecyldiethylamine oxide, di (2-hydroxyethyl) -tetradecylamine oxide, 2-dodecoxyethyldimethylamine oxide, 3-dodecoxy- 2-hydroxypropyldi (3-hydroxypropyl) amine oxide, dimethylhexadecylamine oxide.

Non-limiting examples of preferred nonionic surfactants for use in the present invention include C ₈ -C ₁₈ glucose amide, C ₈ -C ₁₈ alkyl polyglucoside, sucrose cocoate, sucrose laurate, laumine oxide, cocoa Min oxides and mixtures thereof.

Preferred foaming surfactants for use in the present invention include the following, wherein the anionic foaming surfactant is ammonium lauroyl sarcosinate, sodium tridecetes sulfate, sodium lauroyl sarcosinate, Sodium myristoyl sarcosinate, ammonium laureth sulfate, sodium laureth sulfate, ammonium lauryl sulfate, sodium lauryl sulfate, ammonium cocoyl isethionate, sodium cocoyl isethionate, sodium lauroyl isethionate, Sodium cetyl sulfate, sodium lauroyl lactylate, triethanolamine lauroyl lactylate and mixtures thereof, nonionic foaming surfactants are lauamine oxide, cocoamine oxide, decyl polyglucose , poly lauryl glucose, sucrose cocoate, C _12-14 Selected from the group consisting of lucosamide, sucrose laurate, and mixtures thereof, wherein the amphoteric foaming surfactant is disodium lauroampodiacetate, sodium lauroampoacetate, cetyl dimethyl betaine, cocoamidopropyl Betaine, cocoamidopropyl hydroxy sultaine and mixtures thereof.

Foam volume test

Average foam volume is a measure measured by the foam volume test. This test allows the volume of foam / foam produced by the articles described herein to be measured consistently. The foam volume test protocol is as follows:

(1) Thoroughly wash your hands before performing the test with the product to be tested. This will remove any contaminants that may affect the accuracy of the measurement;

(2) wipe your hands with a towel;

(3) using a syringe, dispense 1 cc of composition to the palm;

(4) 2 cc of water (about 8-10 grain medium hardness per 3 gallons of 3 gallons) was added to the hands and the hands rub together (very naturally) in five circular motions;

(5) collecting bubbles formed in a graduated cylinder or beaker large enough to hold the formed bubbles, turning the hands three times in turn;

(6) level the foam evenly with a spatula and measure the volume; And

(7) To determine the average foam volume of the composition, the average foam volume is calculated by completing a total of three tests for each composition, adding the measured foam volume from each sample and dividing the number by three.

The composition of the present invention preferably comprises a foaming surfactant at a level such that the average foam volume of the composition is at least about 15 ml, alternatively at least about 20 ml, even more preferably at least about 30 ml.

Additional ingredients

The compositions of the present invention may contain these ingredients unless a wide variety of ingredients including skin and hair care actives used in conventional product types are not altered to the extent that they do not allow the effect of the present invention. In addition, these ingredients, when incorporated into the composition, should be suitable for use in contact with the keratinous tissue of mammals without undue toxicity, incompatibility, instability, allergic reactions, etc. within the scope of reasonable judgment. The International Cosmetic Ingredient Dictionary and Handbook, 10 ^th Edition (2004) describes a wide variety of non-limiting cosmetic and pharmaceutical ingredients suitable for use in the compositions of the present invention and commonly used in the skin care industry. Examples of such and similar ingredients include abrasives, absorbents, aesthetic ingredients such as perfumes, pigments, pigments / colorants, essential oils, skin sensates, astringents and the like (e.g., clove oil, menthol, camphor, eucalyptus oil, Eugenol, menthyl lactate, witch hazel distillate, acne treatments (e.g. salicylic acid), anti-wrinkle agents, anti-inflammatory agents, anti-atrophy agents, anticaking agents, exfoliants, antimicrobial and antifungal agents (e.g. methyl Chloroisothiazolinone / methylisothiazolinone, iodopropynyl butylcarbamate), antioxidants, retinoids, N-acyl amino acid compounds, oil modifiers (e.g., dehydroacetic acid or pharmaceutically acceptable salts), Binders, biological additives, buffers, extenders, chelating agents, chemical additives, coloring agents, cosmetic astringents, cosmetic biocides, denaturants, medicinal astringents, emollients, external analgesics, film formation Agents or materials, such as polymers (eg, copolymers of icosene and vinyl pyrrolidone) to aid in film-forming properties or persistence of compositions, moisturizers, opacifiers, pH regulators, promoters, reducing agents, metal ions Containment agents, skin bleaching and whitening agents, skin conditioning agents, skin firming agents, skin soothing and / or healing agents and derivatives, skin treatment agents, surfactants, thickeners, amino sugars, vitamins and derivatives thereof. Can be. Further examples of suitable emulsifiers and surfactants can be found in US Pat. No. 3,755,560, US Pat. No. 4,421,769, and McCutcheon's Detergents and Emulsifiers, North American Edition, pages 317324 (1986). However, it should be understood that many materials may provide one or more effects or act through more than one mode of action. Therefore, classifications herein are for convenience and are not intended to limit the active to the specific uses or uses listed.

Table 1: Examples 1-8

Example  Manufacturing method of 1-8:

Carbopol® is added to the deionized natural water of the formulation. All surfactants except cationic and betaine are added. If the pH is less than 6, a neutralizing agent (typically a base such as triethanolamine, sodium hydroxide) is added to adjust the pH to greater than 6. If necessary, heat appropriately to lower the viscosity and minimize air entrapment. Betaine and / or cationic surfactant is added. Conditioning agents, additional flow control agents, pearlizing agents, encapsulating materials, dermabrasions, preservatives, dyes, flavorings and other preferred ingredients are added. Finally, if desired, the pH is lowered with acid (ie citric acid) and sodium chloride is added to increase the viscosity.

Methods of using the compositions of the present invention include not only cleaning the skin and / or hair, but also cleaning and conditioning.

All documents cited in the Detailed Description of the Invention are, in relevant part, incorporated herein by reference, and no citation of any document should be construed as an admission to the prior art for the invention.

While specific embodiments of the invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. Accordingly, all such changes and modifications that fall within the scope of the invention are intended to be included in the appended claims.

Claims (10)

As a foamable personal cleansing composition, a. Alkyl ethoxylated polymers of 0.05% to 5.0%, preferably 0.1% to 2.0%-alkyl substitutions preferably comprise mono-alkyl, di-alkyl, tri-alkyl, tetra-alkyl or combinations thereof, more preferably Preferably an alkyl ethoxylated polymer substituted with di-alkyl, tri-alkyl or a combination of di-alkyl and tri-alkyl; b. 0.1% to 5% crosslinked acid copolymer-preferably the crosslinked copolymer comprises a crosslinked acid copolymer, a crosslinked maleic anhydride copolymer or a mixture thereof; More preferably the crosslinked acid copolymer is an alkyl substituted copolymer containing a crosslinked copolymer comprising an unsaturated carboxylic acid, a hydrophobic monomer, a hydrophobic chain transfer agent, a crosslinker, a steric stabilizer or a combination thereof; Most preferably the crosslinked copolymer is an alkali-swellable acrylate copolymer; c. From 0.1% to 30% of the particulate material, preferably the particulate material comprises detergents, dermabrasions, skin conditioning agents or mixtures thereof derived from inorganic, organic, natural or synthetic sources; And d. 4% to 30% by weight of the composition, preferably 6% to 25% of the foaming surfactant-preferably the foaming surfactant is anionic foaming surfactant, nonionic foaming surfactant , Amphoteric foaming surfactants, and zwitterionic foaming surfactants, or mixtures thereof. Composition comprising a. The composition of claim 1 wherein the alkyl group comprises a saturated, unsaturated, branched, linear alkyl group having 12 to 50 carbon atoms or a combination thereof. The composition of claim 1 or 2, wherein the number of moles of ethylene oxide is greater than 40. The composition of claim 1, comprising from 0.1% to 30% of a detergent and a dermabrasion based on the weight of the composition. The method according to any one of the preceding claims, wherein the conditioning agent is at a level of 0.1% to 50% by weight of the composition, preferably the conditioning agent is a droplet of softened oil, a skin care active agent, a vitamin, a capsule containing these substances or A composition comprising a mixture thereof. The composition of claim 5 wherein the capsule is in the range of 5 to 3000 microns. The composition of any one of the preceding claims, wherein the composition comprises a foaming surfactant at a level such that the average foam volume of the composition is at least 15 ml. The composition of claim 1, wherein the anionic foaming surfactant comprises sarcosinate, sulfate, sulfonate, isethionate, taurate, phosphate, lactylate, glutamate, or mixtures thereof. As a foamable personal cleansing composition, a. Alkyl ethoxylated polymers; b. Crosslinked acid copolymers; c. Particulate matter; And d. Foam-forming surfactants; A composition with a BYV of greater than 50 dyn / cm 2. A method of cleaning a non-therapeutic skin comprising the step of washing the surface area of the skin to be cleaned using the composition according to any one of claims 1 to 8.