PT98979A - Process for the preparation of cleaning compositions containing a surfactant of imidazoline - Google Patents

Description

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63,810

The present invention relates to cleaning compositions. In particular, it relates to personal foam-cleaning compositions suitable for cleaning simultaneously with hair and / or skin conditioning and which may be used, for example in the form of shampoos, cleaning agents of skin, prepared for baths of foam, products for showers, etc. The cleaning compositions are particularly designed to be suitable for use by or for infants or children.

Sputum-producing cosmetic compositions have to meet certain criteria such as cleaning power, foaming properties and softness / low degree of irratibility with respect to the skin, hair and ocular mucosa. The skin consists of several layers of cells that cover and protect the keratin and the coagenous fibrous proteins that form the skeleton of its structure. The outermost layer, referred to as the stratum corneum, is known to consist of 25 X of agglomerates of proteins involved in 80 X of thick layers. The hair, in a similar fashion, has a protective outer coating coating the hair fiber which is called the cuticle. Anionic surfactants can penetrate the membrane of the stratum corneum and the cuticle and, through a delipidation, can destroy the integrity of the membrane. This interference with the protective membranes of the skin and hair can lead to a feeling of rough skin and irritation of the eyes and may optionally allow the surfactant to interact with keratin and hair proteins causing irritation and loss of barrier and water retention functions.

Ideal cosmetic cleansing agents should clean the hair or skin in a gentle manner without removing the fat and / or drying the hair and skin and without irritating the ocular mucous membranes or leaving the skin in tension after frequent use. Most soaps, shampoos and bars that promote -1- 35 5 10 15

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Case CM 342

the appearance of foam fail in this regard. Certain synthetic surfactants are known to be mild. However, the major disadvantage of most synthetic surfactant systems when formulated for use as a shampoo or personal cleanser is reduced foam performance when compared to the highest shampoo and bar soap standarts. Thus, surfactants that are among the mildest, such as sodium lauryl glyceryl ether sulfonate (AGS), are marginal in the production of foam. The use of anionic surfactants which are known to produce a lot of foam, and with foam enhancers, on the contrary, can give an acceptable volume and quality of foam, but at the expense of clinical skin softness. These two facts make the selection of the surfactant and the combination of the foaming and softening effects make the formulation process a delicate balancing act between the advantages and disadvantages. Another factor impacting the balance between the softness / foaming benefits is the incorporation of conditioning benefits to the hair and skin. In the case of shampoos, it is known to incorporate hair conditioning agents into the shampoo formula with the aim of improving the appearance of the hair after being shampooed, i.e., rendering hair more malleable, providing greater volume and luster, to prevent messy hairstyle, to minimize the static electricity in the hair to improve the tactile impression of the hair, to improve the smoothness of the hair, etc. One class of hair conditioning agents that has received a particular interest is the class of silicones. See for example, US-A-4741855, US-A-3849348, US-A-3990991, US-A-3822312 and US-A-4364837. While silicones as a class can provide excellent conditioning performance of the -2- 35 v 10 15

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hair in a carefully formulated shampoo formula, they unfortunately act also by lowering the foam production of the shampoo. This foam suppression is disadvantageous since consumers prefer shampoos with a good quality and volume of foam. And while the effect of the silicone on the foam can be avoided by increasing the concentration of the surface active detergent agent, as would be expected, it is again generally disadvantageous from the point of view of skin smoothness. In contrast, shampoo formulations designed primarily for use by or for infants or children are characterized by a relatively low content of a surface active mild agent, in which the adverse effect of the silicone on foam production becomes a factor particularly critical. Another important factor in the formulation of shampoos and cleaning products containing silicone is the stability of the product. In particular, it is an important factor from the point of view of achieving optimum cleaning and conditioning performance that the silicone is retained in the product in the form of a dispersion which is stable to storage under various storage conditions but which can be uniformly deposited on the hair or skin during washing and be there. retained during subsequent inflation. This in itself imposes restrictions on the formulation which in turn can influence the foaming and softening performances of the shampoo or skin cleanser. Thus, the very stringent restrictions for cosmetic cleaning products exclude the limited use of surface active agents, and the final formulations represent a certain compromise. Softness is often obtained at the expense of cleaning efficiency, or the action may be sacrificed in exchange for softness, condition or stability of the product. Thus, there is a need for cleaning product which produces a foam

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abundant, stable and of high quality and which are efficient hair and skin cleansing agents that condition hair or skin and are very gentle to the skin, hair and mucous membranes of the eyes. The subject of the present invention is a cleaning agent, foam producer, and suitable for personal cleansing of the skin or hair and which can be used as a shampoo, skin cleansers, bath foam and shower products, etc. According to the invention there is provided a cleaning composition comprising: (a) from about 0.1% to about 16% by weight of a first amphoteric surfactant selected from imidazolinium derivatives of the formula I C2 H4 OR2 * 1 I ^ ch2z V \ / \ c ch2

Wherein R 2 is a C 7 -C 22 alkyl or alkenyl group, R 2 is hydrogen or CH 2 Z, each of which is defined as " C02M or CH2 CO2, and M is H, alkali metal, alkaline earth metal, ammonia or alkanolamone; and / or ammonium derivative of formula IV ???????????????????????

wherein R2, R2 and Z are as defined above; (b) from about 0.1% to about 16% by weight of a second amphoteric surfactant selected from the aminoalkanoates of formula II ## STR3 ##

Mod. 71 -20,000 e *. The compound of formula III may be prepared by reacting the compound of formula III with a compound of formula III wherein R1, R2, R3 and R4 are as defined above. ). (c) optically up to about 10% of an anionic surfactant; (d) from about 0.1% to about 5% by weight of a dispersing agent consisting of dispersed and insoluble silicone; and (e) water; the cleaning composition being characterized in that it contains a total surfactant concentration of from about 0.2% to about 20% by weight and characterized in that the combined concentration of the first and second amphoteric surfactants comprises at least 20% by weight of the concentrate. total amount of surfactant. All concentrations and ratios reported herein are by mass of the cleaning composition, unless otherwise noted. In a first aspect the invention relates to a foam-producing cleaning composition having superior foam characteristics (creaminess, abundance, stability) combined with excellent mildness to the hair, skin and ocular mucosa, together with good stability, cleanliness and good conditioning. In a second aspect, the invention relates to a cleaning product comprised of the defined cleaning composition, stored in a container called " - a compressible applicator equipped with an applicator head and liquid / air mixing means, from which the cleaning composition can be easily applied in the form of an aqueous foam by tightening the container. The essential and optional features of the compositions and products

Case CM 342 of this invention are indicated below.

Preferred cleaning compositions for use in this invention are a mixture of two amphoteric surfactants, a first amphoteric surfactant being selected from imidazolyl surfactants of the formula I C2 H4 OR2

CH2Z

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wherein R3 is a C7 -C22 alkyl or alkenyl of hydrogen or CH 2 Z, each Z is independently CO 2 or CH 2 CO 2 M, and M is H, alkali metal, alkaline earth metal, ammonia or the alkanol ammonium; and / or ammonium derivatives of formula IV C2 H4 OH R3 CONH (CH2) 2 N + - CH2 CH2

wherein R 4, R 2 and Z are as defined above; and a second amphoteric surfactant selected from: aminoalkanoates of formula II

R1NH (CH2) nCO2M

iminodialcanoates of formula III R-LNt (CH 2) m CO 2 M] 2 -6- 35 10 15

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and mixtures thereof, being neither numbers from 1 to 4, and R 1 and M are independently selected from the groups specified above. The cleaning compositions for use in this invention may also contain other components, preferably mild, and markedly anionic surfactants. however, preferred are compositions in which the combined concentration of the first and second surfactants is preferred. and preferably at least about 50% by weight of the total concentration of surfactant, this being desirable from the point of view. to obtain optimum foam characteristics. In the preferred compositions, the mixture of the first and the second of the amphoteric surfactant constitutes at least about 60%, and most preferably at least about 75%, by weight of the total surfactant. Amphoteric surfactants of the first type are suitable and marketed under the trademark designation " Miranol " and are composed of a complex mixture of species. Traditionally the " Miranois " have been described as having generic formula I, although the " CIFA Cosmetic Ingredient Dictionary ", 3rd edition, indicates the noncyclic structure IV. In practice, a complex mixture of cyclic species and non-cyclic species is likely to exist, and both definitions are provided to ensure a complete study, however, the naoccyclic species are preferred. Examples of amphoteric surfactants suitable for use as the first non-photolytic surfactant include compounds of formula I and / or IV in which is a C1-4 alkyl group (especially iso-capryl) C1-4alkyl especially preferred are those compounds in which R1 is C2 H4, g is Z and CO2 is S, and s is Η; the compound in which R 1 is C 11 H 23, Z is CO 2 M and R 2 is CH 2 CO 2 M; and compounds in which RX is C1; H23 / z is CO2 e and R2 is -H. 35 1 63,810

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In the CIFA nomenclature, preferred substances for use in the present invention include cocoanaphthocarboxypropionate, cocoanaphthocarboxypropionic acid, and especially cocoamphocarboxyglycinate (also referred to as coco-phosphoacetate). Specific commercial products include those which are sold under the brand names of Miranol C2M Cone. N.P., Miranol C2M Cone. O.P., Miranol C2M SF, Miranol CM Special (Miranol, Inc.); Alkateric 2CIB (Alkaril Chemicals); Amphoterge W-2 (Lonza, Inc.); Monateric CDX-38, Mona teric CSH-32 (Mona Industries); Rewoteric AM-2C (Rewo Chemji cal Group); and Schercotic MS-2 (Scher Chemicals). It will be understood that some of the amphoteric surfactants of this type and commercially available are manufactured and sold in the form of electronically neutral complexes with, for example, hydroxide counterions or with anionic sulphate or sulfonatcv surfactants especially those of the type of sulfated C--C g álcool alcohol, C--C g g alcohol ethoxylated or C--C a a acyl glyceride. Preferred from the point of view of softness and product stability are those compositions which are substantially free of anionic sulphate or sulphonate surfactants, or characterized in that the ratio of the first amphoteric surfactant to the anionic surfactant of sulfate and / or sulfonate is less than about 1: 1. Examples of amphoteric surfactants suitable for use as the second amphoteric surfactant include salts, and especially the triethanolamine and N-lauryl-beta-amino propionic acid and N-lauryl-imino-dipropionic acid salts. These substances are sold under the brand name of " Deriphat " by " General Mills " and " Mirataine " by " Miranol Inc ". The cleaning compositions preferably contain from about 0.5% to about 10% by weight, and most preferably from about 0.5% to about 4% by weight of each of the first and second surfactants -8 - 35 10 15

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amphoteric. The mass ratio of the first amphoteric surfactant to the second amphoteric surfactant is preferably from about 10: 1 to about 1:10, preferably from about 5: 1 to about 1: 5 , and especially from about 3: 1 to about 1: 3, the concentrations and mass ratios of said amphoteric thioactive agents being disclosed herein being based on the non-complexed form of said species. The compositions of the invention may be formed or supplemented by other surfactants other than the amphoteric surfactants specified above. However, the total surfactant content in the compositions disclosed herein should generally be in the range of from about 0.2% to about 20% by weight, preferably from about 1% to about 16%, and preferably from about 1% to about 8%, and especially from about 2% to about 6% by weight. It is a feature of the products of this invention that they can provide a foam with excellent stability and creaminess even at low levels of cleaning surfactants. An optional preferred surfactant in the compositions of this invention is an anionic surfactant. This is preferably present at levels of from about 0.1 to 10%, more preferably from about 0.5 to 5% and especially from about 1% to about 3% by weight. Preferred anionic surfactants for inclusion in this invention are condensation products of fatty acids and proteins, degraded proteins or amino acids, or mixtures of these condensation products. In very preferred applications, the fatty acid condensation products are selected from: (i) condensation products? of Cg-C12 fatty acids, preferably C10-C18 'with hydrolyzed proteins

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(ii) fatty acid sarcosinates, C8 -C22 fatty acid derivatives, preferably C10 -C18, and iii) their mixtures. Other suitable mild detergent surfactants in cleansing compositions include methyl acyl taurates; acyl fatty glycinates; N-acyl glutamates; . glucosides; alkyl glycerides and ethoxylated glycerides; acyl isethionates; alkyl sulfosuccinates; alpha-sulfonated fatty acids, their salts and / or their esters, alkyl phosphate esters, ethoxylated alkyl phosphate esters; alkyl ether sulfates; glucose and alkylated esters, for example methyl glucose esters; mixtures of alkyl ether sulfates and alkyl amine oxides; betaines; sultaines; and mixtures thereof. Included in the surfactants are the alkyl ether sulfates with up to 12 ethoxy groups, especially the ammonium and sodium lauryl ether sulfates. The alkyl and / or acyl chains for these surfactants are C 3 -C 22, preferably C 10 -C 18. Suitably suitable synthetic detergent surfactants include: monoalkyl phosphate (C--C g)) salts, preferably at least partially in the form of its polyalkanol, for example salts Ν, Ν, Ν'Ν'-tetraethanol - (ethylenediamine) (Qua-drol); glutamates of N-C1 -C6 fatty acyl); C--C g a fatty acyl glycinates and / or mixtures thereof with synthetic anionic surfactants, and / or mixtures thereof. The cleaning compositions of this invention also contain a conditioner consisting of dispersed insoluble silicone, meaning the term " insoluble " that the silicone is insoluble in the matrix of the detergent composition under ambient conditions (25 ° C). The silicone content in the compositions of the invention is from about 0.1% to about 5%, preferably from about 0.2% to about 3%, and also from about 35% to about 63%.

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Mod. 71-20,000 εκ. - preferably from about 0.5% to about 1.5% by weight. It is a feature of the compositions of this invention that they can provide total hair conditioning with silicone contents of 50% or less lower than the teos traditionally used in this area. Silicone is especially valuable here from the point of view of reducing eye bites and providing greater smoothness to the ocular mucous membranes. Silicones which are suitable for use in this invention include non-volatile polyaryl siloxane and polyalkyl gums and fluids, linear and cyclic volatile polyalkylsiloxanes, polyalkoxylated silicones, amine-modified or quaternary ammonium silicones, rigid cross-linked silicones and reinforced, and their mixtures.

Non-volatile silicone gums and fluids are particularly useful as the conditioning agent component in the compositions of the present invention. Examples of such substances include polyalkyl or polyaryl siloxanes having the following structure: > 25

wherein R is an alkyl or aryl group, and x is an integer of from about 7 to about 8,000. A represents groups that block the ends of the silicone chains.

The alkyl or aryl groups substituted on the siloxane chain (R) or at the ends of the siloxane chains (A) may have any structure provided that the resulting silicones remain fluid at room temperature, are hydrophobic, non-irritating, 30 1 5 10 15

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Or otherwise detrimental when applied to hair or skin and provided that they are compatible with the other components of the composition are chemically stable under normal conditions of use and storage and that can be deposited on the skin or hair, and that condition them. Suitable A groups include methyl, methoxy, ethoxy, propoxy and aryloxy. The two R groups on the silicon atom may represent the same or different groups. Preferably, the two R groups represent the same group. Suitable R groups include methyl, ethyl, propyl, phenyl, methylphenyl and phenylmethyl Preferred silicones are polydimethylsiloxane, polydietylsiloxane, and polymethylphenylsiloxane. The polydimethylsiloxane is particularly preferred. The polyalkylsiloxanes which may be used herein include, for example, polydimethylsiloxanes having viscosities in the range of 5 to 100,000 mm 2 s -1 (centistokes) at 25øC. These siloxanes are available, for example in " General Electric Company " such as the " Vicasil (RTM) " and in " Dow Corning " such as the " Dow Corning 200 " series. The viscosity can be measured through a glass Cvapi-glass viscometer, as set forth in the Dow Corning Corporate Test Method CTM 0004 Test Method, July 20, 1970.

The polyalkylaryl siloxanes which may be used in this invention include, for example, polymethylphenylsiloxanes having viscosities of from 15 to 65 mm 2, s -1 (centisto kes) at 25øC. These siloxanes are available, for example, in the " General Electric Company " as SF 1075 methylphenyl fluid or in " Dow Corning " as a cosmetic grade fluid 556. Other fluids suitable for use in this invention, although less preferred, include the linear and cyclic volatile polyalkyls, especially the methylated cyclic silicas, containing four to five silane groups, 15

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63,810 Case CM 342 ring xane, and polydimethyl siloxanes with less than nine siloxane groups.

The polyalkoxylated silicones which may be used in this invention include, for example, a dimethyl polyoxyalkylene ether copolymer fluid having a nominal viscosity of 1200 to 1500 mm 2 s -1 at 25øC. Preferred compounds of this type are dimethylpoly. siloxanes modified with polypropylene oxide (for example, "Dow Corning DC-1248"), although ethylene oxide or mixtures of ethylene oxide and propylene oxide may also be used.

Silicones suitable for use in this invention also include cationic silicones (for example modified with amine and with quaternary ammonia). Suitable cationic silicones include: 1) those referred to in the CSElFA Dictionary, 3rd ed. 1982 under the name Amodimethicone, for example, the polymer sold under the trade designation of Dow Corning DC 929; 2) trimethylsilylamodimethicone described in EP-A-95238 and sold by " Dow Corning " under the trade designation Dow Corning Q2 7224; 3) the compounds described in US-A-4185017 and sold by " Union Carbide " under the trade name Ucar Silicone ALE 56.

Silicone conditioning agents which are also useful in the compositions of the present invention are silicone polymeric materials which provide both hair retention and hair conditioning benefits. These materials are hard silicone polymers.

Some examples of these materials include filler reinforced polydimethylsiloxane gums including

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of those with terminal groups such as hydroxyl; siloxanes and crosslinked siloxanes, such as silico-ne elastomers substituted with organic groups; siloxane rubbers substituted with organic groups, including those with terminal groups such as hydroxyl; and reinforced siloxane resins. The rigid silicone polymers useful in the present invention have complex viscosities of at least 2x10 4 poise (P), and preferably about 1x10 4 poise, the complex viscosity being measured by subjecting a sample to an oscillatory voltage at a fixed frequency of 0.1 rad / sec at 25 ° C using a " Rheometric Fluids Spectro Meter " measuring films with a thickness of about 1 millimeter. The resulting viscous and elastic response forces are combined to determine the complex modulus which is divided by the frequency imposed to determine the complex viscosity. Preferably the silicone conditioning agent is a polydimethylsiloxane gum having a viscosity greater than about 1,000,000 centipoise and a dimethicone fluid having a viscosity of from about 10 centipoise to about 100,000 centipoise in which the ratio of the gum to the fluid is from about 30:70 to about 70:30, preferably from about 40:60 to about 60:40. The compositions of this invention also preferably contain from about 0.1% to about 5%, preferably from about 0.5% to about 2% by weight of a suspending promoting silicone agent. This agent may be selected from long chain acyl derivatives and long chain alkylamine oxides, said acyl or amine oxide derivatives being present in the cleaning composition in crystalline form, xanthan gum, polymers of hydrophobically modified acrylic acid, and mixtures thereof. 35 10 15

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Suitable suspending promoting agents belonging to the long chain amine acyl and oxide class are described in US-A-4,741,855, Grote et al. issued May 3, 1988. Esters, especially ethylene glycol esters of fatty acids containing from about 16 to about 22 carbon atoms, as well as other esters of fatty acids (for example esters of polyethylene glycol containing up to about 3 groups of ethylene oxide in the glycol chain) that can be formed in the cleaning composition in crystalline form. ethylene glycol stearates, both mono and di-stearate, but particularly di-restearate containing less than about 1% of the mono-stearate, are preferred. Other useful suspending promoting agents are the fatty acid alkanolamides containing from about 16 to 22 carbon atoms, preferably from about 16 to 18 carbon atoms. Preferred alkanolamides are stearic monoethanolamide, stearic diethanolamide, stearic monodisopropanolamide, and stearic-methanolamide stearate.

Other long chain acyl derivatives include long chain esters of long chain fatty acids (for example, stearyl stearate, cetyl palmitate, etc.); glyceryl esters (for example, glyceryl stearate and long chain esters of long chain alkanolamides, (for example stearamide DEA di-stearate, stearamide MEA stearate).) Still other suspending agents which are suitable are oxides of (c16) -22) alkyl dimethylamine, such as stearyl dimethylamine oxide.

Interestingly, although some long chain acyl derivatives such as ethylene glycol di-ester, can suppress the foam in the shampoo compositions, it has now been found that the inclusion of this substance in the present soft compositions, surprisingly, does not suppress the foam. This fact is yet another manifestation of -15- 35 1 63,810

Case CM 342 unique robustness of the foaming properties of the present compositions. 5 10) 15

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Another useful agent for the suspension of the silicon cones of the present compositions is the xanthan gum as descr. U.S. Patent 4,788,006 to Bolich et al., issued June 5, 1984. The combination of long chain acyl derivatives with xanthan gum as a suspending agent for silicone is described in Patent No. 4,704,272 to Oh et al., Issued November 3, 1987, and may also be used in the compositions of the present invention. For use in such compositions, it is preferred, from the viewpoint of reducing eye bites and increasing smoothness for ocular mucous membranes, the use of a hydrophobically modified, crosslinked acrylic acid polymer with amphipathic properties, such as marketed by BF Goodrich under the brand designation of Carbopol 1342, Penulem TR1 and Penulem TR2. Combinations of these polymers with xanthan gum and / or long chain acyl derivatives in crystalline form, such as ethylene glycol distearate, may also be used, although their use is less preferred. The compositions of this invention also preferably contain a hydrophilic polymeric thickening agent 30 (non-amphipathic) in amounts of from about 0.01% to about 5%, preferably from about 0.04% to about 2%, and especially from about 0.05% to about 1%. The polymeric thickening agent is suitable for increasing the foam quality and foam without adversely affecting the application characteristics of the product. The polymers may also have utility as hair or skin conditioning agents.

Suitable polymers are substances of high molecular weight (average molecular weight determined, for example, by light scattering,

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between about 2,000 and about 3,000,000, preferably between about 5,000 and about 1,000,000). The viscosity of the final composition (Brookfield viscosity RVT, cone speed 1 rpm, 25øC) is preferably lower to about 150 cps, more preferably between about 500 and 12,000 cps, especially from about 1,000 to about 10,000 cps. However, compositions of this invention which are highly preferred, are. especially those which are based on polyacrylic acids: hydrophobically modified as a silicone promoting agent, have a viscosity in the range of about 4,000 to about 9,000 cps. Useful polymers are the cationic, nonionic, amphoteric, and anionic polymers useful in the cosmetic field, cationic and nonionic polymers used in cosmetic fields as skin or hair conditioning agents are preferred. Representative classes of polymers include cationic and nonionic polysaccharides, homopolymers and cationic and nonionic copolymers derived from acrylic and / or methacrylic acid; cationic and non-ionic cellulose resins; cationic copolymers of dimethyldiallylammonium chloride and acrylic acid; cationic homopolymers of dimethyldiallylammonium chloride; polyalkylene and ethoxypolyalkylene-cationic imines; quaternized silicones and mixtures thereof. By way of example, cationic polymers suitable for use in this invention include cationic guar gums, such as hydroxypropyl trimethyl ammonium guar gum (from 0.11 to 0.22) commercially available under the designation (RTM) and Jaguar C-17 (RTM), and also Jaguar C-16 (RTM), which contain hydroxypropyl substituents (ds of from 0.8-1.1) in addition to the groups quaternized cellulose ethers, and quaternized cellulose ethers available commercially under the designations -17- 35 1 5 10 16

Mod. 71-20,000 ex. 20 30 \

of Ucare Polymer JR and Celquat. Other suitable cationic polymers are homopolymers of di-methyldiallylammonium chloride commercially available under the designation Merquat 100, dimethyl aminoethyl methacrylate and acrylamide copolymers, dimethyldiallylammonium chloride and acrylamide copolymers available commercially under the brand names Merquat 550 and Merquat S acrylic or methacrylate copolymers of quaternized vinyl pyrrolidone and amino alcohol commercially available under the Gafquat brand, and polyalkyleneimines such as polyethyleneimine and ethoxylated polyethyleneimine. Preferred polymeric agents to act as thickeners in this invention include hydroxyethyl cellulose (e.g., Natrasol " 250 Natrasol 250 HHR), methyl celloluse; hydroxypropyl methylcellulose; polymers of saccharides or oligosaccharides with compatible synthetic monomers; quaternized polycarboxylates; and starches and starch derivatives. Cleansing compositions may include a hair or skin moisturizer. The preferred humidifier content is from about 3% to about 40% by weight. In preferred applications, the hydrating agent is non-occlusive and is selected from: 1. Water-soluble liquid polyols; 2. Essential amino acid compounds naturally found in the stratum corneum of the skin; 3. Water-soluble non-occlusive nonionic polyolefins, and mixtures thereof. Some examples of the preferred and non-occlusive moisturizing agents are glycerin, polyethylene glycol propylene glycol, sorbitol, polyethylene glycol and propylene glycol methyl glucose ethers (for example, methyl glucan-20), polyethylene glycol and propylene glycol ethers of lanolin alcohol Solulan-75), pyrrolidone carboxylic acid

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Mod. 7) -20,000 e *. - 90/08 20 30 63,810 Case CM 342 sodium carboxylate, lactic acid / urea, L-proline, guanidine, pyrrolidone and mixtures thereof. Among the above substances, glycerol is highly preferred.

Examples of other non-occlusive and water-soluble moisturizers include hexadecyl, myristyl, isodecyl or isopropyl esters of adipic, lactic, oleic, stearic, isostearic, myristic or linoleic (esters / water-soluble) acids, as well as many of their esters of corresponding alcohols (sodium isostearolyl-2-lactylate, sodium capryl lactylate), hydrolyzed proteins and other proteins derived from collagen, aloe vera gel and MEA acetamide.

Some other optional substantial ones may be added to the cleaning compositions. These substances include proteins and polypeptides and their derivatives, with water soluble or solubilizable preservatives such as Ger-mall 115, methyl, ethyl, propyl, and butyl esters of hydroxybenzoic acid, EDTA, Euxil (RTM) K 400, Bronopol 2-bromo-2-mitropropane-1,3-diol); other moisturizing agents such as hilaric acid, chitin, and starch-grafted sodium polyacrylates such as Sanwet (RTM) IM-1,000, IM-1500 and IM-2,500 available from " Celanese Superabsorbent Materials Portsmith, VA, USA " and disclosed in US-A-4,076,663; solvents such as hexylene glycol and propylene glycol; low temperature phase modifiers such as ammonium ion sources (e.g., NH 4 Cl); coloring agents; pearl-like agents such as T1O2-coated mica; perfumes and solubilizers of perfumes, etc. Conventional nonionic emollients with additional conditioning agents for the skin and hair may be included in the compositions up to about 10%, preferably from about 1% to about 6%. These substances include, for example, mineral oils, sorbitan fatty esters (see US-A-3988255, Seiden issued October 26, 1976), lanolin derivatives and lanolin, esters such as isopropyl myristate and triglycerides 5 10 15 20 25 30 63,810 Case CM 342 IV. Ί cerides such as coconut oil. The water is also present in contents of from about 60% to about 99%, preferably at least about 75% by weight of the composition shown herein. The pH of the compositions is preferably between about 4 and about 9, preferably between about 4.5 and about 8.5, the pH being controlled, for example, using a citrate buffer system. The cleaning compositions presented herein? may be packaged in the traditional forms of bottle or sachet or alternatively in a compressible, non-aerosol package of the type usually referred to as " foam producer " which comprises a reservoir, an applicator head, mixing means liquid / air and, preferably, homogenizing means and valves which prevent return. In the execution of such products (compressible packages), the compositions are preferably formulated with a lower viscosity, in the range of from about 1 to about 10 cps (Brookfield LVT equipment, UL 70 ° F adapter, 60 rpm, corrected for spindle speed). Foam-forming packages by tightening are well known as exemplified in the presentations of the following patents: US-A-3709,437 (Wright, issued January 9, 1973) US-A-3,937,364 (Wright, issued February 1, 1976) US-A-4,022,351 (Wright, May 10, 1977) US-A-4,147,306 (Bennett, issued April 3, 1979) US-A-4,184,615 (Wright, January-1980) US-A-4,598,862 (Rice, issued July 8, 1986) US-A-4,615,467 (Grogan et al. issued October 7, 1986) and FR-A-2,604,622 ( Verlhuht, published April 8, 1988) The above packages do not use any propellant and are therefore safe for the consumer and the environment. The cleaning composition is set forth in the -20- 35 63,810

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Mod. 71-20,000 ex. Which can, for example, take the form of a compressible plastic bottle. Squeezing the reservoir with the hand forces the composition through the liquid / air mixing means where the composition is admixed with air, preferably followed by a homogenizer which makes the foam more homogeneous and controls the consistency of the foam . The foam is then discharged as a uniform, non-pressurized aerated foam through the applicator head of the package. The minimum force to activate the foam producer is about 1 psig, preferably between about 2 psig and about 15 psig. The minimum force is related to the size of the channels in the applicator of the viscosity of the composition, etc. In general, the density of the foam should be between about 0.002 and about 0.25 g / cc, preferably between about 0.01 and about 0.07 g / cc. The density of the foam is inversely related to the foam strength, with lower density foams being therefore preferred. The invention is illustrated by the following non-limiting examples. In the examples, all concentrations are on an active basis of 100% and the abbreviations are as follows: amphoteric Amphoteric CM-0 of formula I and / or IV in which R1 is alkyl coco, R2 is H, and Z is CO2. Amphoteric B- * Miranol C2M conc. NP-O amphoteric of formula I and / or IV in which is alkyl coco, R2 is CH2 CO2 Na and Z is CO2 Na (amphocarboxyglycinate) Amphoteric C- * N-lauryl-beta-amino propionate sodium-21-35 63,810

1

Amphoteric sodium D- * N-lauryl-beta-iminodipropionate / æ 4

Carbopol 1342 + hydrophobically modified acrylic acid polymer marketed by B.F Goodrich. Polymer 1 Hydroxyethyl cellulose gum (HEC) [Natrasol 5 250 HHR] molecular mass of about 1,000,000 EGDS -► Ethylene glycol distearate 10

Anionic 1 Coconut hydrolyzed potassium animal protein. Anionic 2 - * Palm Oil Fatty Acid Sarcosinate Silicone -► Fluid Mixture / Dimethicone Gum Preservative- »· Hidantonia DMDM Supplier of + Mica Coated with TÍO2 Pearly Look i 15

Mod. 71-20. - 90/08 20

30

Example I to V The following shampoo compositions are representative of the present invention: Amphoteric A - 5.0 - - 1.5 Amphoteric B 1.4 - 1.8 1.8 - amphoteric C - 2.0 - - 4.4 Amphoteric D 4.2 - 2.2 5.2 - Anionic 1 - - 5.4 - 3.0 Anionic 2 - - 2.5 - 3.0 Carbopol 1342 0.2 0.2 0.4 0.2 - Polymer 1 1.0 0.8 - 1.0 0.8 EGDS - - 1.0 - 1.0 Xanthan Gum - - 0.3 - 0.5 Silicone 1.0 1.5 2.0 1.0 1.5 EDTA 0.1 0.1 0.1 0.1 0.1 Preservative 0.15 0.15 0.1 0.2 0.2 Supplier of pearl spectra 0, 2 - 0.2 0.2 Perfume Water PH 1,0 «- 4 1,0 1,0 - Up to 7 1,0 100 - 1,0 -1 - 35

Claims (1)

63,810 1 5 10 I 16 K Mod. 71-20,000 e *. Compositions I, II and IV are prepared by cold (80 ° F) premixing the silicone with a portion of the amphoteric C or D and adding this premix and the perfume to a master mix (80 ° F) of all other co-factors. Compositions III and V are prepared in a similar manner, but the carbopol and xanthan gum are dissolved in the masterbatch at 75-80øC before being cooled to room temperature, the EGDS is pre-dissolved in an aqueous solution of the anionic surfactant at 75 ° -80 ° C and allowed to cool to room temperature with rapid stirring to form a crystalline EGDS dispersion, the silicone premix and the EGDS being then added to the masterbatch. The products provide excellent usability and efficacy benefits, including cleaning, conditioning and foaming action, along with improved smoothness for the skin, hair and ocular mucous membranes. A process for the preparation of a personal cleansing composition, characterized in that: (a) from about 0.1% to about 16% by weight of a first amphoteric surfactant selected from imidazolinium derivatives of formula I * C2 H40 R2 N-CH2 -23- 30 1 63810 Case CM 342 1 5 10) wherein R 1 is a C 7 -C 22 alkyl or alkynyl group, R 2 is hydrogen or CH 2 Z, each Z being independently CO 2 M or CH 2 CO 2 M, and M represents a H, alkali metal, alkaline earth metal, ammonium or alkanolammonium; and / or ammonium derivatives of the formula IV C 2 H 4 OH R 2 CONH (CH 2) 2 N + Wherein R21, R2 and Z are as defined above. (b) from about 0.1% to about 16% by weight of a second amphoteric surfactant selected from the aminoalkanoates of formula III R1N [(CH2) m CO2 O] III ) And mixtures thereof, wherein neither are numbers from 1 to 4, and R1 and M are independently selected from the groups specified in (a) above; (c) optionally up to about 10% anionic surfactant; (d) from about 0.1% to about 5% by weight of a dispersible and insoluble silicone-containing conditioner, and (e) water; wherein the total concentration of surfactant is between 0.2% and 20% by weight, the combined concentration of the first and second surfactants being 24% ex. . - 90/06) 25 30 63,810 Case CM 342 vol is at least 20% by weight of the total concentration of surfactant. 2. A composition according to claim 1, characterized in that the mixture of the first and second amphoteric surfactants constitutes at least about 50%, and preferably at least about 60%, and still more preferably at least about 75% %, by weight of the total surfactant 3a. The process according to claim 1 or 2, characterized in that the total concentration of surfactants is from about 1% to about 16%, preferably from about 1% to about of 8% and most preferably from about 2% to about 6% by weight of the cleaning composition. The process according to any one of claims 1 to 3, wherein the concentration of each of the surfactants is from about 0.5% to about 10%, preferably from about 0.5% to about of 4% by weight of the cleaning composition. Process according to any one of claims 1 to 4, characterized in that the mass ratio of the first amphoteric surfactant to the second amphoteric surfactant is from about 10: 1 to about 1:10, preferably from about 5: 1 to about 1: 5, and most preferably from about 3: 1 to about 1: 3. A process according to any one of claims 1 to 5, characterized in that it additionally mixes from about 0.1% to about 10%, preferably from about 0.5% to about 5%, and preferably from about 1% to about 3% by weight anionic surfactant of the cleaning composition. 7. A process as claimed in claim 6, characterized in that the anionic surfactant is prepared as described above. - 90/08 20 30 63,810 Case CM 342% used is a condensation product of a fatty acid of a protein, degraded protein or amino acid or a mixture of said condensation products of said fatty acids. 8 ^. 7. A process according to claim 7, wherein the fatty acid condensation product is selected from (i) condensation products of C 8 -C 12 fatty acids and preferably C 18 -C 18 with hydrolysed proteins, (ii) fatty acids derived from C8-C22 fatty acids and preferably c10-c18 'and (iii) mixtures thereof. 9 ^. 6. A process according to any one of claims 6 to 8, characterized in that the first amphoteric surfactant and the anionic sulphate or sulphonate surfactant are present in a ratio of not more than about 1: 1. according to any one of claims 1 to 9, characterized in that the conditioning agent is selected from gums and non-volatile polyalkyl and polyaryl siloxane fluids, linear and cyclic volatile polyalkylsiloxanes, silicon oxyalkoxylates, amino silicones, or modified quaternary ammonium, crosslinked rigid chain silicones and silicone silicones and mixtures thereof. 11 ^. 2. A process according to any one of claims 1 to 10, wherein the silicone conditioning agent is selected from polydimethylsiloxane fluids having a viscosity of from about 0.01 to about 100 Pa. At 25 ° C, gums of polydimethylsiloxane having a viscosity greater than about 1000 Pa.sec. at 25 ° C, and mixtures thereof. 12. A process as claimed in any one of claims 1 to 11, characterized in that the mixture is mixed with an aqueous solution. - 90/08 20 j 25 30 63.810 Case CM 342 additionally from about 0.1% to about 5% of a suspending agent selected from long chain acyl derivatives and long chain alkylamine oxides, said acyl or amine oxide derivatives being present in the crystalline form cleaning composition, xanthan gum, hydrophilically modified acrylic acid polymers, and mixtures thereof. A process according to any one of claims 1 to 12 wherein the cleaning composition obtained has a viscosity of at least 0.15 (Brookfield RVT, rotational speed 1 rpm, 25øC). 14. A process according to claim 13, wherein the cleaning composition obtained has a viscosity (under the same conditions) of from about 0.5 to about 12, preferably from about 1 to about 10, and still preferably from about 4 to about 9 Pa. sec. 15. A process as claimed in any one of claims 1 to 14, wherein from about 0.01% to 5%, preferably from about 0.04% to about 2%, and most preferably from about 0% , 5% to 1%, of hydrophilic polymeric thickening agent, wt% of the cleaning composition. 16. The composition of any one of claims 1 to 15, wherein from about 3% to about 40% of a skin or hair moisturizing agent is blended. 17. A process according to claim 16 wherein the moisturizing agent is non-occlusive and is selected from: 1. water soluble liquid polyols 2. essential amino acid compounds found naturally in the corneous stratum of the skin; and 3. non-occlusive substances, non-polyolefins, 16 Mod. 71-20,000 ex. - 90/08 20 25 30 63,810 Case CM 342 water-soluble, and mixtures thereof. 18. A process according to claim 17, wherein the moisturizer is selected from glycerol, polyethylene glycol, propylene glycol, sorbitol, polyethylene glycol and propylene glycol ethers of methyl glucose, polyethylene glycol ethers and propylene glycol of lanolin alcohol, sodium carboxylic acid pyrrolidone, lactic acid, L-proline and mixtures thereof. 19. A process according to claim 15, wherein the thickening polymer is selected from cationic and nonionic polysaccharides; cationic and nonionic homopolymers and copolymers derived from acrylic and / or methacrylic acid; cationic and nonionic cellulosic resins; cationic copolymers of dimethyldiallylammonium chloride and acrylic acid; cationic homopolymers of dimethyldiallylammonium chloride; cationic imines of polyalkylene and ethoxypolyalkylene, quaternized silicones, and mixtures thereof. Lisbon, 16: r. ; ii By THE PROCTER & GAMBLE C0MPANY ENG * MANUEL MONIZ PEREIRA Assistant to the AOP1 Eng. "Vasco Leite Arco de Conceição" 3-1 · 1100 LISBON -28- 35