MXPA99006360A - Personal wash liquid composition comprising low viscosity oils pre-thickened by non-antifoaming hydrophobic polymers - Google Patents

Abstract

The present invention relates to aqueous-based personal wash compositions comprising hydrophobic, low viscosity (less than 1000 cp) emollient agents which have been specifically pre-thickened with defined polymer composition. Use of the specific thickeners allow incorporation of the low viscosity oil (viscosity less than 1000 cp) in the personal wash compositions to deliver enhanced skin benefits and desired user properties without compromising foaming.

Description

LIQUID COMPOSITION OF PERSONAL WASHING THAT UNDERSTANDS PREHEATED LOW VISCOSITY OILS THROUGH HYDROPHOBIC POLYMERS ANTISPUMANTS FIELD OF THE INVENTION The present invention relates to liquid personal cleansing compositions comprising low viscosity oils thickened as wetting agents. More specifically, by thickening these low viscosity oils (i.e., oils having viscosity less than 1000 centipopes (cp)) with specific, hydrophobic polymers, mixing in oil, with a low degree of crystallinity, it is possible to supply higher amounts of the oil to the skin / substrate from the skin cleansing compositions without sacrificing the foaming benefits. In this way, the advantages of these low viscosity oils can be effectively produced. In addition, oils thickened with these specific polymer compositions were found to form large droplets in the water-based personal cleansing skin cleansing compositions of the invention.

Again the large-sized droplets are enormously advantageous for deposition and supply of the oil to the substrate (eg, skin) from a personal skin cleansing product.

BACKGROUND OF THE INVENTION Personal cleansing products that can provide a skin benefit to the skin (e.g., wetting) are highly desirable. In general, this is achieved by ensuring a sufficient amount of beneficial agent for the effective skin that is deposited on the skin during the skin cleansing process. A particularly desirable group of beneficial skin agents are the emollient, hydrophobic, low viscosity oils ( less than 1000 centipoise), such as sunflower oil and mineral oil (see table 1 of this). These oils are substantive to the skin and are generally used as humectants. Higher viscosity oils are also beneficial, but if one is limited to using only higher viscosity oils, the advantages of a wide array of beneficial agents for the skin is simply loss. Although many low viscosity emollient oils (ie, see Table 1) can be added to the skin in "leave-on" type products (eg, skin cream, moisturizer and lotion), they can not be easily applied as water-based skin cleansing compositions (e.g., personal washing compositions containing surfactant, such as bath gel and body washing liquid, since low viscosity, unthickened oils cause antiseptic action) (Foaming is a consumer attribute strongly desired in cleaning compositions). In addition, low viscosity, unthickened oils tend to have small drops, which are not easily deposited on the skin and "supply" the beneficial agent. Finally, low viscosity oil can easily cause phase separation from the volume of the skin cleanser. To overcome the disadvantages of low thickened low viscosity oils (antis spumació, small droplets and phase separation), you can try to thicken them before adding them to a skin cleansing formulation. However, most thickeners used for this purpose (for example, polyethylene waxes and aluminum stearate) by themselves are highly antifoaming. Therefore, it is a great challenge to find a way to thicken low viscosity hydrophobic emollient oils in personal wash compositions without sacrificing foaming / foaming performance or colloidal stability. A thickener that is not antifoaming or destabilizing could also promote the formation of larger oil droplets that can be more easily deposited / supplied to the skin during the cleaning process. The techniques of providing hydrophobic skin beneficial agents from personal cleansing formulations to the skin are reported in the prior art. The world patent application WO 94/03152 and WO 94/03151 (assigned to Unilever NV and Uniliver PLC), for example, teaches the use of cationic hydrophilic polymers such as JR® polymer from Amerchol or Jaguar® from Rhone Poulenc to improve the supply of hydrophobic skin beneficial agents (eg, silicone, vegetable oils) on the skin. These hydrophilic delivery polymers, however, can be dissolved in water and thus dissociated from the hydrophobic emollient oils in an aqueous base formulation. In contrast, the hydrophobic polymeric thickeners used by the present invention do not dissociate from the hydrophobic emollient oils. Worldwide patent applications WO 94/01084 and WO 94/01085 (assigned to Procter and Gamble Co.) teach a personal cleansing and moisturizing composition of mild soap that can deliver hydrophobic skin beneficial agents. In order to provide efficient deposition, however, these patent applications show that the droplet size of the skin beneficial agents in the cleansers must be large (ie, the petrolatum used has a particle size of between 45 and 120 micrometers and a viscosity of between 60,000 to 400,000 cps). In contrast to the criticism of the subject invention, the so-called patent applications do not teach or suggest low viscosity, thickened hydrophobic agents (ie, viscosity below 1000 cp), in a skin cleansing formulation to improve the benefits in the skin while at the same time avoiding the important anti-foam. Patent applications WO 95/26710, WO 96/17591, WO 96/17592, and WO 96/25144 (assigned to Procter and Gamble Co.) Teach the supply of hydrophobic lipid ingredients from personal and liquid cleaning sticks to provide a benefit moisturizer to the skin. The lipid ingredients (5 to 40% of the total composition) widely claimed are hydrophobic materials selected from: (a) hydrocarbons and waxes, (b) silicones and (c) different types of esters and have a viscosity on the scale of 1000 to 500,000 cp. The patent applications referred to, alone or in combination, do not teach or suggest the technique of low viscosity thickener hydrophobic oils (ie, a viscosity below 1000 cp) in a skin cleansing formulation to improve the benefits of the skin without sacrificing the performance of foaming. Also, the so-called applications (ie, WO 95/26710, Page 6, Line 5-7 and WO 96/25144, Page 14, Line 21-27) do not recognize the importance of using non-crystalline lipids to reduce the anti-foaming effect; in that case, paraffins and other crystalline waxes (which all effectively act as defoamers if used in conjunction with low viscosity emollient oils) are suggested in the same category with microcrystalline waxes and petrolatum (those which cause much less antiseparation). foaming if combined with low viscosity oils). In contrast, the subject invention teaches the technique of how to formulate low viscosity emollient oils (viscosity below 1000 cp) thickened by a specific group of hydrophobic polymers, miscible in oil with a low degree of crystallinity in personal wash formulations. It also teaches the improvement of supply in low viscosity oils to the skin without sacrificing foam production. In the subject invention, crystalline waxes such as paraffinic and polyethylene waxes are specifically excluded from the oil thickeners used. Patent application WO 94/17166 teaches a cleaning composition comprising insoluble nonionic oil or wax or a mixture of oil and / or wax (3 to 40% of the total composition) to provide a benefit to the skin from the cleaning composition claimed. Applicants have found that the wax in the oils functions as an antifoaming oil and the use of such waxes as thickening agents is specifically excluded by the present invention. Also, in contrast to the criticism of the subject invention, the present patent application does not teach or suggest to thicken low viscosity hydrophobic oils (ie, viscosity below 1000 cp) in a skin cleansing formulation to improve the benefits of the skin without anti-foaming. The patent application WO 92/08444 (assigned to Procter and Gamble Co.) teaches a mild cleansing bar composition comprising from 0.5 to 20% of a hydrophobic silicone component consisting of: (A) silicone gum (viscosity greater than 600,000) and (B) fluid of silicone with a viscosity of between 5 to 600,000. The application of solid bar called fundamentally is different from the liquid application of the present in terms of processing and composition. Furthermore, the so-called patent application teaches only the mixing of a specific type of hydrophobic emollients (i.e., idimet i 1 if loxane s of low viscosity, (B)) with the same type of emollient oils of higher viscosity (ie say, PDMS, (A)) to promote desired sensation and smoothness to the skin. In contrast, in order to obtain inertiological benefits in the skin, the subject invention teaches the technique of how to thicken a wide variety of low viscosity oils. (less than 1000 cp) using specific polymer thickeners, which are structurally and completely different than PDMS, or how to thicken a wide variety of low viscosity non-silicone oils, using hydrophobic high viscosity silicone oil. As such, low viscosity oils and thickeners that have a completely different structure than low viscosity oils together provide intrinsic benefits to the skin, and as such, the mixture of low viscosity and high viscosity silicones claimed by the so-called application is clearly different from the thickened oils claimed by the subject invention. The use of oils that act as beneficial and polymeric agents of the invention which are thickeners is also known. U.S. Patent No. 5,221, 534 to P. DesLauriers (Pennzoil Products Company), for example, teaches auxiliary health and beauty compositions containing a gel comprising a mineral oil and mixtures of di- and tri-block copolymers. based on synthetic thermoplastic rubbers. The patent teaches how to make gels that can also include other wetting agents. However, this patent and other literatures published by Penreco (a division of Pennzoil) only teach applications of gels in products of types to be "left over", such as humectants and body lotions, which do not contain the surfactants of formation of foam utilization by this invention, and fail to teach or suggest the inclusion of gels in any personal wash formulations containing foaming surfactants.

In contrast, the subject matter is different in at least two important ways. First, the subject matter uses the thickened polymer oils and / or the same mixture of ace i t e / po 1 th as a thickener for other low viscosity oils (same or different). Secondly, those compositions of oil and / or pore are used in personal washing compositions, of products of the "do not leave over" type. Different formulations of the "leave-over" type (ie, that claimed by US Patent No. 5,221,534, which does not contain any foaming surfactant), the personal wash formulations claimed by the subject matter comprise at least 5 % by weight, preferably 10% by weight or more of the foaming surfactants. In addition, the compositions of the invention will generate a foam rise of at least 7 cms. or greater after 2 minutes of aging the foam through the Ross-Miies method (see Methodology in the Example section). Such foam heights could not be generated through the products of "being left over".

Soap / cosmetics / Chemical Specialties (page 24, February, 1996) reported a Shower-Act i ve ™ moisturizer introduced by Jergens in November 1995. The humectant contains the miner oil gels (Geahlene®) claimed by the U.S. patent. No. 5,221,534 and other ingredients such as octyl isenonanoate, steareth-2 and phosphoric acid. The moisturizer can be applied to the skin in the shower to avoid the process of consuming time to apply the moisturizer after taking the bath in a shower. Again, however, this reference discloses acetyl gels by themselves in the "leave-on" compositions, such as body moisturizers, cream and lotions. The reference does not disclose the oil / po-1erous gel composition as a thickener for additional low viscosity oils (ie, to help deposit without antifoaming) and furthermore does not disclose the use of these polymer thickened oil compositions in personal washing compositions. Again, such "leave-over" products comprise Geahlene® does not contain the foaming surfactants used by the present invention to promote the foam, which is an important desired sensation for personal wash products. As described in the prior art, a wide variety of hydrophobic emollient oils are beneficial agents for desirable skin. However, since they are hydrophobic antifoaming emollients, potentially destabilizing, and not easily deposited (less than 1000 cpm) as humectants, they are difficult to be included in personal wash formulations. Examples of such low viscosity oils include mineral oils, solar oils, vegetable oils, low molecular weight lactate esters and isopropyl myristate. Although not intended to be bound by theory, applicants believe that these low viscosity oils are readily emulsified through surfactants, and thus, (1) they cause anti- pumping and (2) they are difficult to be effectively retained on the skin during a skin cleaning process (washing).

In contrast, high viscosity oils (ie, viscosity significantly greater than 1000 cp) are less emulsifiable and, therefore, form larger droplets in a cleaner, and this is desired for high foaming and deposition of the oil on the skin. However, focusing only on such high viscosity oils could leave a vast array of low viscosity oils that are potentially good humectants, but simply can not be used previously effectively. One route to effectively deposit the low viscosity oils on the skin from a cleaner is to thicken the oils using thickening agents. However, it was found that most of the conventional oil thickeners, such as paraffin wax, crystalline polyethylene, silica, smoky silica, silicate and long chain fatty acid soap (ie, 18 a 22 carbon atoms), all have a high tendency to suppress significantly the foam of a cleaner, especially in the presence of hydrophobic emollient oils. That is, the personal cleansing compositions containing these thickener oils can provide wetting benefits to the skin but fail to provide satisfactory foam production. In summary, the prior art teaches one of the two situations: 1) personal washing compositions, wherein the oils of low viscosity are thickened by known thickeners, but the formation of foam (and / or stability) is compromised.; or 2) low viscosity oils that are thickened through specific polymers (eg, like the Pennzoil Geahlene® composition), where these thickened polymer oils are used in "lay-on" compositions to deliver the oil as a humee t ant e. Novelty to the art, the present invention formulated low viscosity emollients pre-wefted through a group of hydrophobic, non-antifoaming, specific polymers to skin cleansing formulations, and the invention provides at least three unique benefits in comparison with low viscosity oils not thickened. First, the specific polymer thickened oils provide significantly better foam production. Secondly, thickened oils tend to form larger sized drops that are more adhesive to the skin, which in turn can improve the deposition of the oil on the skin (supported by the prior art listed above, i.e. U.S. Patent Applications WO 94/01084 and WO 94/01085). Third, thickened polymer-specific oils tend to be stable in an appropriately designed skin cleansing formulation and resist phase separation of the bulky body from the formulation.

BRIEF DESCRIPTION OF THE INVENTION Surprisingly and unexpectedly, the applicants have found that it is possible to thicken effectively hydrophobic low viscosity emollients oils (viscosity less than 1000 cp) using a special group of hydrophobic polymeric thickeners, so that the low viscosity oils can be more effectively supplied from the personal washing cleansing compositions without compromising the formation of foam. That is, it is now possible to provide cleaning (through 'surfactants), wetting (through low viscosity oil thickened by the specific polymer compositions) and good foaming all in one composition. More specifically, the present composition comprises a water-based personal cleansing washing composition comprising: a) from 5 to 50%, preferably from 10 to 30% by weight of a foam-forming surfactant selected from the group consisting of agents anionic surfactants, • cationic surfactants, amphoteric surfactants, nonionic surfactants and mixtures thereof. b) from 0.5 to 30%, preferably from 5% to 25% by weight of the total composition of a pre-stressed oil composition having a viscosity above 2000 cp, preferably above 5000 cp, and more preferably around of 10,000 cp at 25 ° C, wherein the pre-weighed oil composition comprises a hydrophobic emollient with a viscosity less than 1000 cp and a thickener material which is specified in the detailed embodiment of this invention.

BRIEF DESCRIPTION OF THE DRAWING Figure "1 is a cross section showing the oil droplets of 16.7% Geahlene® 1600 in an aqueous-based formulation containing 8.3% cocoamidopropyl betaine, 4.2% sodium laureth sulfate (3EO) ) and 4.2% sodium cocoyl isethionate The non-spherical forms of some of the oil droplets may be indicative of the high viscosity of Geahlene, which is desired for the purpose of skin deposition.

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to novel, water-based personal cleansing washing compositions, which are not only capable of providing cleaning benefits normally associated with such cleansers, but are also capable of delivering much higher amounts. of low viscosity oil (for example, much greater wetting benefits) than previously possible without compromising the attributes of foam formation. In other words, when the low viscosity oil is normally thickened (as required to provide wetting benefits), thickeners that have previously been used in the art (e.g., wax) have also compromised foam formation in the cleaning composition. While the low viscosity oil (i.e., mineral oil with a viscosity around 12 cp at 20 ° C) has been thickened in the prior art using one of the specific polymer thickeners selected by the subject invention (i.e. (b) (ii), Geahlene® type compositions), the composition of ace ite / po 1 imer or nape has been previously used in skin cleansing compositions. Unexpectedly, however, applicants have now found that the low viscosity (less than 1000 cp) of thickener oils with specific polymer compositions (eg, Geahlene® type compositions can be used in cleaning compositions and allow the cleaning compositions to function as normal cleaners while providing wetting function and without simultaneously compromising foaming As such, the compositions of the invention contain at least 5% by weight or more of the surfactant foam (see detailed description (a) Surfactant System) and will generate an elevation of foam at least seven cm or more after two minutes of aging the foam by means of the Ross-Miies method (see Methodology in Example sec.) This foam generation capability differentiates the skin cleansing composition claimed from those skin care products of the "leave-over" type, such as moisturizers, cream and lotion. On the other hand, an aqueous cleaner containing the same percentage of the same low viscosity oil (viscosity less than 100 cp) that has been pre - spelled by crystalline thickeners, such as polyethylene or paraffin waxes, soap water insoluble fatty acid of C? 8-C22, provides usual and significantly less foam (see the Example section). Thus, the applicants have been remarkably able to obtain a desirable double benefit (humectants from low viscosity oil and improved foam) in a cleaning composition, an achievement not previously obtained in the art using low viscosity oils. On the other hand, the oil has been previously forced to not take into account a complete category of beneficial agents due to that the way of incorporating a significant amount of them (ie 20% by weight) has not been previously adequate. ) in personal wash compositions. The composition of the invention comprises: (a) 5% to 50%, preferably 10-30% by weight of a surfactant selected from the group consisting of anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants and mixtures thereof. same; (b) 0.5% to 30%, preferably 5% to 25% by weight of the total composition a specific non-antifoaming polymer thickening composition having a viscosity above 2000 cp, preferably above 10,000 cp; wherein the pre-weighted oil composition (b) comprises a hydrophobic emollient agent with a viscosity of less than 1000 cp and a "non-antistress foam" thickener material specified below; where by "non-defoaming" sxe means to imply that the cleaner contains the thickener composition of oil and / or po lime that generates a foam rise of at least seven cm or greater after two minutes of foam aging, when tested by Ross-Miies methods or cylinder agitation detailed in the methodology). Conversely, a cleaner containing the same percentage of the same low viscosity oil (viscosity less than 1000 cp) thickened by crystalline thickeners, such as polyethylene or paraffin waxes or C3.8-C22 fatty acid soap usually generates significantly less foam (see Example section). Each component is also detailed as s igue: (a) If it is an anionic surfactant The anionic surfactant may be, for example, an aliphatic sulfonate, such as a primary (eg, C8-C22) alkan sulfonate, to the primary candi sulphone (eg, of C8-C22), C8-C22 alkenesulphonate, hydroxyalkyl acid of C8-c22 or alkylglyceryl sulphonate (AGS); or an aromatic sulfonate such as alkylbenzene sulfonate. The anionic surfactant may also be a C8-C22 carboxylic acid salt (or known as a fatty acid soap). The fatty acid soap is also known to be more irritating to the skin than other softer surfactants, such as sodium cocoyl isethionate. As such, the skin cleansing formulations claimed by this invention comprise at least 10% of the carboxylic acid salt. The anionic surfactant may also be an alkyl sulfate (for example, C 2 -C 2 alkyl sulfate) or alkyl ether sulfate (including the alkyl glyceryl sulfate). Among the alkyl ether sulphates are those having 1 to formula: RO (CH2CH20) nS03M wherein R is an alkyl or alkenyl having 8 to 18 carbons, preferably 12 to 18 carbons, n has an average value greater than 1.0, preferably between 2 and 3; and M is a solubilized cation such as sodium, potassium, ammonium or substituted ammonium. Ammonium and lauryl ether sodium sulfate are prepared. The anionic surfactant can also be alkyl phosphonates (including mono- and dialkyl, for example C6-C22 sulfosuccinates); Alkyl and alkyl acyl sarcosinates, sulfoacetoses, C8-C22 alkyl phosphates and phosphates, alkyl phosphate esters and alkoxy lalky 1 phosphate esters, acyl lactates, C8-C22 moalkylsuccinates and maleates, sulfonates oacetates, and acyl isethionates. The sulfosuccinates can be monoalkyl sulfonates having the formula: R402CCH2CH (SO3M) C02M; the amine sulfosuccinates -MEA of the R-symbol CONHCH2CH202CCH2CH (SO3M) C02M wherein R4 has C8-C22 alkyl and M is a solubilizable cation; the amido-MIPA sulfosuccinates of the formula RCONH (CH2) CH (CH3) (S03M) C02M where M is as defined above. Also included are alkoxylated citrate sulfosuccinates; and alkoxylated sulphonucleoses such as the following: O R-0- (CH2CH2?) n ICICH2CH (S03M) C02M wherein n = 1 to 20; and M is as defined in the above. Sarcosinates are generally indicated by the formula RCON (CH3) CH2CO2M, wherein R has C8 to C2o alkyl and M is a cation which is lubrifiable. Taurates are generally identified by the formula R2CORN3CH2CH2S 03M, wherein R2 has C9-C20 alkyl, R3 has C? -C alkyl, and M is a solubilizing cation. Another class of anionic surfactants are carboxylates such as the following: R- (CH2CH2O) nC02M wherein R is C8 to C2o alkyl; n is 0 to 20; and M is as defined in the above. Another carboxylate that can be used is amidoalkyl polypeptide of carboxylates such as, for example, Monteine LCQ® by Seppic. Other surfactants that may be used are the C 8 -C 8 acyl isethionates. These esters are prepared by reaction between alkali metal isethionate with mixtures of aliphatic fatty acids having from 6 to 18 carbon atoms and an iodine value of less than 20. At least 75% of the fatty acid mixture has from 12 to 18 carbon atoms and above 25% have from 6 to 10 carbon atoms. Acyl isethionates, when they are present, they will generally have approximately 0.5-15% by weight of the total composition. Preferably, this component is present from about 1 to about 10%. The acyl isethionate may be an alkoxylated isethionate such as described in Ilardi et al., US Patent No. 5,393,466, incorporated herein by reference in the subject application. This compound has the general formula: OX and R C-0-CH-CH2- (OCH-CH2) m-SO "3M + wherein R is an alkyl group having 8 to 18 carbons, m is an integer from 1 to 4, X and Y are hydrogen or an alkyl group having 1 to 4 carbons and M + is a monovalent cation such as, for example, sodium, potassium or ammonium In general the anionic component will comprise from about 1 to 20% by weight of the composition, preferably from 2 to 15%, more preferably 5 to 12% by weight of the composition Zwitterionic surfactants and Amphoteric Zwitterionic surfactants are exemplified by those which can be broadly described as aliphatic quaternary ammonium derivatives, phosphonium, and sulfonium compounds, in which the aliphatic radicals can be straight or branched chains, and wherein one of the aliphatic substituents contains from about 8 to about 18 carbon atoms and one contains an anionic group, eg, carboxy, sulfonate, sulfate , fo Sfato, or phosphonate. A general formula for these compounds is: Z (-) wherein R2 contains an alkyl, alkenyl, or hydroxyalkyl radical of about 8 to 18 carbon atoms, from 0 to about 10 portions of ethylene oxide and from 0 to about 1 glyceryl portion; And it is selected from the group consisting of nitrogen, phosphorus, and sulfur atoms; R3 is - an alkyl or monohydroxyalkyl group containing about 1 to about 3 carbon atoms; X is 1 when Y is a sulfur atom, and 2 when Y is a nitrogen or phosphorus atom; R 4 is an alkylene or hydroxyalkylene of about 1 to about 4 carbon atoms and Z is a radical selected from the group consisting of carboxylate, sulfonate, phosphonate, and phosphate groups. Examples of such surfactants include: 4- [N, n-di (2-idroxyethyl) -N-octadecylammo-nio] -butan-1-carboxylate; 5- [S-3-hydroxypropyl-S-hexadecylsulfonium] -3-hydroxypentane-1-sulfate; 3- [p, p-diethyl-P-3, 6, 9-trioxatetradexocyl-phosphonium] -2-hydroxypropan-1-phosphate; 3- [N, N-dipropyl-N-3-dodecoxy-2-hydroxypropyl-1-ammonium] -propan-1-phosphonate; 3- (N, N-dimethyl-N-hexadecylammonium) propan-1-sulfonate; 3- (N, N-dimethyl-N-hexadecylammonium) -2-hydroxypropan-1-sulfonate; 4- [N, N-di (2-hydroxyethyl) -N- (2-hydroxydecyl) ammonium] -butan-1-carboxylate; 3- [S-ethyl-S- (3-dodecoxy-2-hydroxypropyl) -sulfonium] -propan-1-phosphate; 3- [P, P-dimethyl-P-dodecylphosphonium] -propan-1-phosphonate; and 5- [N, N-di (3-hydroxypropyl) -N-hexadecyl amnono] -2-hydroxy-pentane-1-sulfate. Amphoteric detergents which can be used in this invention include at least one acid group. This can be a carboxylic or sulfonic acid group. Including quaternary nitrogen and by. therefore are amido quaternary acids. They should generally include an alkyl or alkenyl group of 7 to 18 carbon atoms. Usually they will comply with a structural formula usually:? C I Rl - [-C-NH (CHJ, • 1 -N * -X-Y where R1 is alkyl or alkenyl of 7 to 1 carbon atoms; R2 and R3 are each independently alkyl, hydroxyalkyl or carboxyalkyl of 1 to 3 carbon atoms; n is 2 to 4; m e s 0 to 1; X is alkylene of 1 to 3 carbon atoms optionally substituted with hydroxyl, and Y is -C02- or -S03- Suitable amphoteric detergents within the above general formula include simple betaines of. the formula: R2 I 1 - N * - CH2CO, "I R and amido betaines of the formula: R * I R1 - CONH (CH2) - N '- CH2CO,' [R3 where m is 2 or 3. In both formulas R1, R2 and R3 are as previously defined. R1 can be in particular a mixture of C12-C14 alkyl groups derived from coconut so that at least half, preferably at least three quarters of the groups R1 have 10 to 14 carbon atoms. R2 and R3 are preferably methyl. An additional possibility is that the amphoteric detergent is a sulfobetaine of the formula R2 Rl - N '- (CH ^ SO, R3 R¿ I Rl - CONH < CH2). - N * (CH .SO, "i R3 where m is 2 or 3, or variants of these in which (CH2) 3SO_3 is replaced by OH I -CHJCHCHJ S03 * In these formulas R1, R2 and R3 are as previously discussed.

The amphoacetates and di amfoacetes are also intended to be covered in possible zwitterionic and / or amphoteric compounds which may be used. The zwitterionic / amphoteric surfactants, when used, generally comprise 0% to 25%, preferably 0.1 to 20% by weight, more preferably 5% to 15% of the composition in addition to one or more anionic surfactants and optionally. amphoteric and / or zwitterionic, the surfactant system may optionally comprise a nonionic surfactant.

Nonionic Surfactants The nonionic surfactant which can be used includes in particular the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example aliphatic alcohols, acids, amides or alkyl 1-phenoxy is with oxides of alkylene, especially ethylene oxide either alone or with propylene oxide. The specific non-ionic detergent compounds are C6-C22 alkylphenols, condensate ethylene oxide, the condensation products of C8-C? 8 primary or secondary aliphatic alcohols linear or branched with ethylene oxide, and products made by condensation of ethylene oxide. ethylene with the reaction products of propylene oxide and ethylenediamine. Other so-called non-ionic detergent compounds include long chain tertiary amine oxides, long chain tertiary phosphine oxides and dialkyl sulfoxides. The nonionic surfactant may also be a sugar amide, such as a polysaccharide amide. Specifically, the surfactant may be one of the lactobionamides described in U.S. Patent No. 5,389,279 to Au et al. which is incorporated herein by reference or may be one of the sugar amide described in Patent No. 5,009,814 to Kelkenberg, incorporated herein by reference in the application. Other surfactants which may be used are described in U.S. Patent No. 3,723,325 to Parran Jr. and alkyl ionic surfactants are non-ionic as described in US Patent No. 4,565,647 of Llenado, both of which are also incorporated in the application for re f er ation. Preferred alkyl polysaccharides are those of the formula R20 (CnH2nO) t (glycosyl) x wherein R2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyl to which 1 f eni, and mixtures thereof in which the alkyl groups contain from about 10 to about 18, preferably from about 12 to about 14, carbon atoms; n is 0 to 3, preferably 2; t is from 0 to about 10, preferably 0; Y.? is from 1.3 to about 10, preferably from 1.3 to about 2.7. The glycosyl is preferably derived from glucose. To prepare these compounds, alcohol or alkyl alcohol is first formed and then reacted with glucose, or a source of glucose, to form the glucoside (attached to position 1-). The additional glycosyl units can then be annexed between their 1- position and the preceding glycosyl units 2-, 3-, 4- and / or 6- position, preferably predominantly the 2-position. The nonionic surfactant may also be a chemically modified water-soluble polymer with hydrophobic portion or portions. For example, block copolymer EO-PO, hydrophobically modified PEG such as POE (200) -glyceride is tearate can be included in the formulations claimed by the subject invention. (b) Compo si tions Thickening of Ac i te / Polimer or Examples (not intended to be limiting in any way) of the type of hydrophobic emollient oils (b) (i) contemplated by this invention include as follows: Table 1 Viscosity of Some Hydro phobic Emollient Oils To thicken a low viscosity hydrophobic oil and make the thickened oil stable in an aqueous skin cleaner without sacrificing foaming, the polymeric thickeners (b) (i) used in this invention must meet all of the following criteria at a temperature between 10 ° C and 60 ° C. (1) Hydrophobicity: a polymer or mixtures of polymers having a solubility in water of less than 1% by weight in water, preferably less than 0.5% by weight in water. Hydrophobicity is critical because the thickening agent must be stable in the oil in the aqueous cleaning formulation; (2) low crystallinity a polymer or a mixture of polymers which contain 80% by weight or greater without crystalline polymeric materials and less than 20% crystalline polymeric materials in a continuous matrix of the oil that is thick. In the subject invention, the non-crystalline polymeric materials comprise gels, amorphous solids, microcrystalline waxes and mixtures thereof. Gels and amorphous solids can be distinguished from crystalline materials by the wide-angle X-ray diffraction technique (crystalline materials provide different maximum X-ray diffraction, and amorphous gels and solids do not). Microcrystalline waxes is a special case. Those different crystalline waxes (ie, paraffins and polyethylene), microcrystalline waxes (historically known as amorphous waxes) are of high molecular weight, highly branched hydrocarbon chains, small crystalline or amorphous structure (depending on the processing routes used), and plasticity (see: H. Bennet, Industrial Waxes, Pages 89-92, published by Chemical Publishing Company, 1963, included herein for reference in the subject application). Those unique properties and the differences between microcrystalline waxes and crystalline waxes are summarized in Table 2. The most popular product of microcrystalline waxes is petrolatum (also known as petroleum jelly or mineral jelly), which consists of approximately 90% by weight. weight of a natural mixture of microcrystalline waxes in greater or lesser amounts of other impurities. Other examples of microcrystalline waxes include but are not limited to Micro. Wax, Micro. Wax 2305, Micro. Wax 1135 / 15W (all of Ross), and Multiwax 180M, Multiwax ML-445, Multiwax 180W, Multiwax W-445, Multiwax W-445, Multiwax W-835, Multiwax X-145 (all of Wi t co / Sonnebor) . Table 2 Major differences between microcrystalline waxes and crystalline waxes The low crystallinity is critical because a high order of crystallinity (ie paraffin or polyethylene waxes) in the thickened oil causes significant defoaming. (3) oil compatibility; a polymer or mixtures of polymers which are miscible and / or dispersible in a low viscosity oil (viscosity less than 1000 cp) to form a homogeneous mixture which is stable in the liquid cleaning formulation object without composition and layer separation. Oil compatibility is critical because the polymer thickener and the oil have to form a homogeneous domain (ie, oil thickener droplets) in the water-based skin cleansing formulation. Examples of potential polymeric thickeners that meet the foregoing criteria include but are not limited to: (1) rubber-based block thermoplastic copolymers, such as SEBS, SEP, SEB, EP, SBS, and SIS, in which E = polyethylene segments, S = polystyrene segments B = polybutylene or polybutadiene segments 1 = polyisoprene segments, P = polypropylene segments. These copolymers are commercially available from Shell Chemical Company (under the trade names of Kraton®); (2) silicone oil with a viscosity greater than 2000 cp, preferably greater than 5,000 cp, and more preferably 10,000 cp, selected from po 1 idimet i ls of high molecular weight iloxanes, and other hydrophobic polydimethylsiloxane derivatives such as diethylpoly siloxane, dimethicone, to the C1-C30 alkyl loxane. These silicone oils are commercially available. For example, po 1 idimet i 1 s iloxanes of different molecular weight and viscosity are commercially available from Dow Corning under the trade name of Dow Corning 200 fluid or from General Electric under the trade name of GE silicone; and (3) microcrystalline waxes with a viscosity greater than 2000 cp, preferably greater than 5,000 cp, and more preferably greater than 10,000 cp, such as petrolatum, which is available from Ultra Chemical Inc. (name the Commercial of Ultrapure SC or Ultrapure HMP petrolatum white) or Fisher Scientific (Petrolatum, Purified Grade); such as Micro. Wax, Micro. Wax 2305, Micro, Wax 1135/15 (all Ross), and such as Multiwax 180M, Multiwax ML-445, Multiwax 180W, Multiwax W-445, Multiwax W-445, Multiwax W-835, Multiwax X-145 (all from W it co / S onnebo rn). While not wishing to be bound by theory, the applicants of the subject invention believe that the polymeric thickeners form a network-like structure that is microscopically dispersed in the low viscosity oil, and that a polymer network is formed through a polymeric network. physical entanglement (ie, PDMS or petrolatum in IPM or sunflower seed oil, see type 2 and type 3 below) or microdomain aggregation (ie, block copolymers based on rubber in mineral oil Type 1 below).

Examples of detailed polymer / oil thickener compositions are specified in the following. Type 1 Coarse Mineral Oil Copolymer (ie Commercially Available Geahlene®) A low viscosity emollient oil thickened by a specific group of block-based thermoplastic copolymers based on rubber meets the above criteria. Acetylene / block copolymer thickener composition is claimed by US Pat. No. 5,221.53.4 of DesLauriers et al. Under this patent, oil / copolymer thickener compositions are currently sold / marketed under the trademark of Geahlene® by Penreco as "leave-on" skin care products, such as health and beauty, products, which contain non-foaming surfactants such as those used by the subject invention to make foam. The polymer surrounding the oil in this thickener composition is a mixture of polymers used comprising at least two polymers or copolymers selected from the group consisting of diblock polymers which contain at least two thermodynamically incompatible segments, triblock copolymers, polymers or copolymers radials, polymers or multiblock copolymers, and mixtures thereof, however, it being required that at least one diblock copolymer and / or triblock copolymer be present in the composition. At least one diblock copolymer or at least one triblock copolymer comprising 5% to 95% of the mixture of at least two different polymers, and the diblock and triblock polymers comprise segments of styrene monomer units and monomer units of rubber Preferably the mixture is a mixture of diblock copolymers and triblock copolymers. By the term thermodynamically incompatible with respect to the polymers means that the polymer contains at least two incompatible segments, for example at least one hard segment and one soft segment. In general in the diblock polymer, the segments will be sequential with respect to the hard and soft segments. In the tribloque polymer, the ratio is two hard, one soft, two hard, one soft, etc. or a 2-1-2 copolymer. Multiblock polymers can contain any combination of hard and soft segments. As noted above, in the composition, however, these must always be present at least one of the diblock or triblock copolymers. These must also be a combination which will provide both the hardness and softness characteristics necessary for the composition. These characteristics are necessary to provide controlled syneresis which is an essential part of the present invention in the formation of gel compositions that aid health and beauty. In the compositions, the oil is contained within the polymer network formed by the polymer mixture. The polymers and polymer oil / compound are more specifically described in U.S. Patent No. 5,221,534 to DesLauriers et al., Said patent is incorporated herein by reference in the subject application. Type 2 Emollient Oils Thickened with Silicone Oil.

In another embodiment of the invention, a low viscosity non-silicone emollient oil (viscosity less than 1000 cp) is thickened by high viscosity silicone oil, such as polydime ti 1 siloxane (PDMS) also meets the above criteria defined by the selected polymer thickeners. The viscosity of PDMS is above 2000 cp, preferably above 5000 cp, and more preferably above 10,000 cp. The PDMS / oil thickener system comprises from 10% to 90% by weight of said PDMS, and 90% to 10% by weight of silicone-soluble low viscosity emollients, including but not limited to the following: diisopropyl adipate , diisopropyl sebacate, octyl isononanoate, isodecyl octanoate, diethylene glycol, isopropyl myristate, isocetyl palmitate, isopropyl isostearate, isocetyl palmitate, isostearyl palmitate, diis oetemate malate, diglyceryl isostearate, dimerate of diisopropyl, di-diglyceryl isostearate, and mixtures of the same.

The PDMS / oil thickener system can also comprise 20% to 95% PDMS, and 5% to 80% by weight of low viscosity oils that are homogeneously dispersible and / or partially soluble in PDMS, which include but are not. imi tan a: mineral oil, lanolin oil, coconut oil, jojaba oil, maleated soybean oil, almond oil, peanut oil, wheat germ oil, rice bran oil, linseed oil, oil apricot kernel, walnuts, palm nuts, pistachio nuts, sesame seeds, rape seed, juniper oil, corn oil, peach kernel oil, poppy seed oil, pine oil, soybean oil, avocado oil, sunflower seed oil, hazelnut oil, olive oil, grape seed oil, and safflower oil, babassu oil, and mixtures thereof. Type 3 Microcrystalline Waxes (eg Petrolatum) Thickened Emollient Oils In another embodiment of the invention, microcrystalline waxes with a viscosity greater than 2000 cp, preferably greater than 5,000 cp, and more preferably greater than 10,000 cp, may also be used for Thicken low viscosity emollient oils. An example of this type of thickener is petrolatum which is predominantly a natural mixture of microcrystalline waxes; An example of petrolatum is a Fisher Chemical Petrolatum (purified grade). The oil thickener gel / composition comprises from 10% to 80% by weight of said microcrystalline waxes and from 20% to 90% by weight of low hydrophobic emollient oils, viscosity which can be finely dispersed and / or dissolved in the gel of hydrocarbon. The oils include but are not imitated: mineral oil, lanolin oil, coconut oil, jojoba oil, maleated soybean oil, almond oil, peanut oil, wheat germ oil, bran oil, oil flaxseed, apricot kernel oil, walnut oil, palm kernel oil, pistachio nut oil, sesame seed oil, rape seed oil, juniper oil, corn oil, peach kernel oil, poppy seed oil, pine oil, soybean oil, avocado oil, sunflower seed oil, hazelnut oil, olive oil, grape seed oil, and safflower oil, Shea butter, babassu oil , isopropyl myristate and mixtures of the same. As noted above, these specific polymeric thickening agents allow the low viscosity oil to provide the improved wetting effect while providing less significant antifoam compared to unthickened oils or oils thickened by crystalline waxes (ie, paraffins) and polyethylene) and C18-C22 fatty acid soaps. As a further advantage, the thickening / oil thickener compositions are stable in the reclaimed liquid skin cleansing formulations and resistant to the separation phase. (c) Other Ingredients In addition, the compositions of the invention may optionally include ingredients such as: Organic solvents, such as ethanol, auxiliary thickeners, such as carboxymethyl cellulose, magnesium aluminum silicate. , hydroxyethylcellulose, methylcellulose, carbopol, glucamides, or Antil® from Rhone Poulenc; perfumes; sequestering agents, such as tetrasodium ethylenediaminetetraacetate (EDTA), EHDP or mixed in an amount of 0.01 to 1%, preferably 0.01 to 0.05%, and coloring agents, opacifiers and precursors such as zinc stearate, magnesium stearate, THYO2, EGMS, (ethylene glycol monostearate) or Lytron 621 (styrene / acrylate copolymer); all of which are useful in increasing the appearance or cosmetic properties of the product. The compositions may further comprise antimicrobials such as 2-hydroxy-4,2 ', 4'-trichlorodiphenylether (DP300); conservatives such as dime t iloldime t i lhidantoina (Glydant XL1000), parabens, sorbic acid, etc. The compositions may also comprise cocoacylmono- or diethanolamides as a soapy water booster and strongly ionized salts such as sodium chloride and sodium sulfate, may also be used advantageously. Antioxidants such as, for example, butylated hydroxytoluene (BHT) can be advantageously used in amounts of about 0.01% or higher if appropriate. The cationic conditioners which can be used include Quatrisoft LM-200 Po lyquaternium-24, Merquat Plus 3330- Polyquat ernium 39; and type conditioners J Taguar®. Polyethylene glycols which may be used include: Polyox WSR-205 PEG 14M, Polyox WSR-N-60K PEG 45M, or Polyox WSR-N-750 PEG 7M. PEG with molecular weight in the range of 300 to 10,000 Daltons, such as those marketed under the trademark of CARBOWAX SENTRY by Union Carbide. Thickeners which can be used include Armechol Polymer HM 1500® (Nonoxynil Hydroxyethyl Cellulose); Glucam DOE 120 (PEG 120 Methyl Glucose Dioleate); Rewoderm® (gl i cer i 1 modified PEG cocoate, palmate or talloate) from Rewo Chesical Antil® 141 (ex Goldschmidt). Another optional ingredient which may be added are the flocculating polymers such as are taught in U.S. Patent No. 5,147,576 to Montague, incorporated herein by reference. Another ingredient which may be included are exfoliants such as polyoxyethylene beads, walnut shells and chabacano seeds. The composition may also contain 0.1 to 15% by weight, preferably 1 to 10% by weight of a structurant. Such a structuring can be used to avoid the addition of external structurants (for example, crosslinked polyacylates and clays) if necessary. Suspend particles you also want to provide desirable attributes for the consumed s. The structurant is generally a long unsaturated and / or branched chain of (C8-C4) liquid fatty acid or ester derived therefrom; and / or unsaturated and / or branched long chain of liquid alcohol or ether derived therefrom. It can also be a saturated short chain of fatty acid such as capric acid or caprylic acid. Although it is not desired to be bound by theory, it is believed that the unsaturated parts of the fatty acid or alcohol or the branched portion of the fatty acid or alcohol acts to "mess up" the hydrophobic surfactant chains and induces the formation of phase 1 amelar. Examples of liquid fatty acids which may be used are oleic acid, isostearic acid, linoleic acid, ricinoleic acid, elaidic acid, aric acid, myristoleytic acid and palm oil. Ester derivatives include propylene glycol isostearate, propylene glycol oleate, glyceryl isostearate, glyceryl oleate, and glyceryl diols. Examples of alcohols include oleyl alcohol and isostearyl alcohol. Examples of ether derivatives include isostearyl carboxylic acid or olet; or alcohol isoestearet or olet. The structuring agent can be defined as having a melting point below about 25 ° C. The present invention is set forth in greater detail in the following examples. The examples are for purposes of illustration only and are not intended to limit the scope of the claims in any way.

All percentages in the examples and specification, unless otherwise indicated, are intended to be percentages by weight.

EXAMPLES Me to dol og io e of Eva l ua tio n of E sp uma Ross-Miies Method Foam elevation was measured by the Ross-Miies method (for details, see J. Ross and GD Miles, A. Soc. For Testing Materials, Method D1173-53, Philadelphia, Pa., 1953). In this invention, 200 ml of a test solution comprises 0.5% by weight of concentration of total surfactant contained in a pipette of specified dimensions with an orifice of 2.9 mm I.D. allowed to fall 90 cm in 50 ml of the same solution contained in a cylindrical vessel maintained at a given temperature (40 ° C) by means of a water cover. The rise of the foam produced in the cylindrical container is read immediately after the entire solution has the pipette start ("initial height rise") and then again after giving the amount of time (time of aging of the foam).

Cylinder Agitation Method The foam volume was also tested using a cylinder agitation method. Forty grams of solution (2.5% by weight of total surfactant concentration) is placed in a 250 ml PYREX cylinder with lid. The foam was generated by the agitation of the cylinder (by a customary evaluator) for 0.5 minutes. After the foam settled for 2.5 minutes, the foam rise was measured.

Hand Washing Method A hand wash foam test method was used to measure the volume of foam produced by the different types of thickener oils. The procedure of this test method is described in the following: 1. Wet both hand gloves (latex gloves) with hot water; 2. 0.7 grams of cleaner and 1.0 grams were applied on the wet right palm; 3. The wet left palm rubbed back and forth 20 times on the right palm to generate foam; 4. The foam was collected from both pain a graduated beaker; 5. The above procedure was repeated two more times and the foam generated was collected in the same beaker. The total volume of foam collected in the beaker was measured and summarized in Table 1 (Example 3).

Example 1: Preparation of Acetyl is Thickened The foam made of a cleaner containing the preferred oil / thickener oil compositions preferred by the subject invention was compared to that of a cleaner containing Thickening oils by non-preferred agents. For this purpose, the thickener oils were prepared by different materials for the proven foam which is demonstrated in the following examples. Geahlene® Thickened Polymer Oils (A Preferred Example of the Invention) The commercially available Geahlene 1600 (from Penreco), a mineral oil thickened by a specific blend of rubber-based thermoplastic polymers (a preferred example of this invention), is api directly without additional modification.

Wax or Silica of Thickened Oils (Non-Preferred, Comparative) The other two oils thickened both with crystalline polymer (wax) or hydrophobic particles (silica) are non-preferred thickened oils. They are prepared by mixing 90 parts of the mineral oil (Drakeol 7 ex Penreco) and 10 parts of crystallized polyethylene (Polywax 2000 ex Petrolite Specialty Polymer Group) at 70 ° C using an overheated mixture to form a first clear solution. Then the solution was cooled to room temperature to form a viscous gel. The other was prepared by mixing 10 parts of hydrophobic particles (Cab-O-Sil TS720 smoking silica ex Cabot Corporation) with 90 parts of mineral oil at room temperature for 30 minutes. A semi-pale thickener oil was formed after mixing the hydrophobic particles in the mineral oil.

Example 2: Preparation of Washing Cleaners Personnel Containing Thickened Oils By Different Thickeners A liquid cleaner with compositions shown in Formulation 1 was used to prepare formulation No. 2 to No. 5 (in Example 3). Formulations No. 2, 3 and 4 were prepared by mixing 5% by weight of three different classes of thickener oils respectively with 95% by weight of Formulation No. 1 at 10 RPM for 5 minutes using an overheated mechanical mixture. Formulation No. 5 was prepared by mixing 10% by weight of the commercial Geahlene® 1600 directly with 90% by weight of Formulation 1 at the same mezzanine condition.

Formulation No. 1 (Skin Cleansing Base Formulation No. 2 (Invention, Cleaner + Geahlene at 5%) Liquid cleaner 95% by weight of Formulation No. 1; Geahlene® 1600 5% by weight.

Formulation No. 3 (Comparative, Cleaner + wax oil thickened at 5%) Liquid cleaner 95% by weight of the Formulation No. 1; Thickened polyethylene oil (Polywax 2000) 5% by weight Formulation No. 4 (Comparative, Cleaner + silica oil thickened at 5%) Liquid cleaner 95% by weight of Formulation No. 1; Thickened oils (smoky silica Cab-O- Sil TS720) hydrophobic particle at 5% by weight.

Formulation No. 5 (Invention, Cleaner + Geahlene at 10%) Liquid cleaner 90% by weight of the Formulation No. 1; Thickened oil (Geahlene 1600) polymer without crystallization at 10% by weight.

Example 3: Effect of Oil Thickeners on Cleaning Foams By using the hand washing method, the volume of foam produced by cleaners containing different types of thickened oils was measured, and the results are shown in Table 3. 3 Foam Volume of Example 2-5 in Comparison to That of the Control The data clearly indicate that the oils thickened by Geahlene® 1600 (Formulation No. 2 and Formulation No. 5) have less defoaming effect on the cleaner than the oils thickened by crystalline PoliWax and smoky silica.

Example 4: Gel-Powered Formulations Containing High Levels of Geahlene Oils S Speeded Mineral oils thickened by hydrophobic rubber-based copolymers, such as Geahlene® gels (a mixture of rubber copolymer 1-acetic acid) mineral ore by Penreco) can also be included in a gel bath formulation at relatively high levels without sacrificing foam formation and product stability.

In this example, the base formulation used is shown in Formulation No. 6. The ingredients were mixed at 40 ° C for 2 hours using a superheated mixer, then the mixture was cooled to room temperature. The resulting formulation was a homogeneous cream, and gel ve r t ib 1 e.

Formulation 6 (Skin Cleansing Base) Using the same preparation method, Geahlene® 750 25% by weight (a mixture of non-crude polymer / mineral oil by Penreco) was mixed in the base formulation as shown in Formulation No. 7.

Formulation No. 7 (cleanser + Geahlene 25%) Foam elevations by the Ross-Miies method (at 40 ° C and dilution factor = 40x, concentration of surfactant above = 0.5% by weight) were measured by formulation No. 6 and No. 7 respectively as a function of foam aging time. As shown in Table 4, Formulation No. 7 with Geahlene® had elevation and foam stably comparable to that of Formulation No. 6, which does not contain any hydrophobic oil.- Table 4 Ross Miles Foam Lifting by Formulations No. 6 and No. 7 as a Foam Aging Time Function This example clearly shows that the long po 1 / ace amounts that thicken the composition (for example, Geahlene® 750 at 25%) can provide wetting benefits thereof without affecting above all the elevation of the spu a.

Example 5: Gel bath formulations containing Isopropyl Myristate Thickened by Geahlene® 1600 Without sacrificing the foaming of a skin cleanser, the commercial Geahlene® 1600 (from Penreco) can also thicken oils of low viscosity other than mineral oils In this example, isopropyl myristate (IPM) was significantly thickened by Geahlene 1600 (from Penreco) at weight ratio of 1: 1 after mixing at 20 ° C using an over-heated mixture. Then 20% by weight of these thickener Geahlene-IPM compositions were mixed with the surfactant base of Formulation No. 6, using the same prepared method, which resulted in Formulation 8. The resulting formulation is a cream, homogeneous, and gel go to him Formulation No. 8 (Invention) By the same preparation method as Formulation No. 6 to No. 8, 10% by weight. IPM is mixed with the surfactant a base of Formulation 6 for the purpose of comparison, and the resulting mixture is Formulation No. 9.

Formulation No. 9 (Comparative) The profiles of the Ross foam elevation thousands against the time shown in Table 5 indicate that Formulation 8 (contains the pre-thickened IPM by Geahlene) presents foam volume and comparable foam stability to that of Formulation 6 ( base oil of surfactant w / o). In contrast, Formulation 9 (only IPM w / o Geahlene thickener) can destabilize the foam (ie, less foam volume and the foam texture is thin) as the aging time was greater than 6 minute s.

Table 5 Ross Miles Foam Elevation as a Function of a Foam Aged by Cleaners Containing the Compositions of Po 1 e / Ac e i t e Thickener and Non Thickened Oils Lifting Elevation Time of aging foam (cm) Foam (cm) Foam (cm) foam Formulation Formulation Formulation (minutes) No. 6 No 8 No 9 (surfactant base) (C ompar tive) (C press ativo) 0. 8 18 18 17 1.7 17 18 17 Example 6: Aqueous Skin Cleansers Containing Polymethyl Silicane Thickened Oils (PDMS) An isopropyl myristate (IPM), viscosity at approximately 10 cp) and a polydime ti ls iloxane (PDMS, viscosity around 60,000) were premixed. cp) in weight ratio of 1: 1 at 20 ° C using an overheated mixture for 30 minutes. The resulting IPM / PDMS thickener composition (a preferred example of the subject invention) has a viscosity that is more than 10 times higher than that isopropyl myristate alone. By using the preparation method shown in Example 6-8, which includes the thickened siloxane / IPM composition in a skin cleansing base (Formulation No. 10) resulting in a creamy, pourable white viscous liquid (Formulation No . eleven) . Under the same premix condition, a PDMS (viscosity around 60,000 cp) / sunflower oil (viscosity around 10 cp) was prepared. The resulting sunflower seed oil / PDMS thickener composition (a preferred example of the subject invention) has a viscosity that is more than 10 times higher than sunflower oil alone. By preparing the method shown in Example 6 to 8 include the sunflower seed oil / PDMS thickener composition in a skin cleansing base (Formulation No. 10) resulting in a pourable white viscous liquid (Formulation 12) For the For comparison purpose, IPM / aluminum tear (a crystalline thickener, not preferred by the subject invention in the weight ratio of 9: 1 was mixed and heated to 120C to form a clear gel) Cool the gel under 20 ° C resulting in a misty viscous gel By the method of preparation shown in Example 6 to 8, including this thickening Al / IPM stearate composition in a skin cleanser (Formulation 10) resulting in a pourable viscous liquid (Formulation 13) .

As shown in Table 6, the foaming of Formulations 11 and 12 is significantly better than Formulation No. 13, which contains isopropyl myristate thickened by Al stearate, a crystalline material. The results in this Example indicate that conventional thickening agents, such as Al stearate (a long-chain insoluble fatty acid soap), can seriously defoam in the presence of oil. In contrast, PDMS, a non-crystalline hydrophobic polymer can thicken an oil w / o sacrificing the foaming of an aqueous cleaner.

Table 6 Comparison of foam volume of Formulation No. 11 - No. 13 EXAMPLE 7: Cleaner for the Pi the Ac uo sos with Con ven on Ac ei t es Pe r thod Species An isopropyl myristate (IPM, viscosity of about 10 cp) and a petrolatum were premixed (from Fisher Scientific) in weight ratio of 1: 1 at 20 ° C using a superheated mixer for 30 minutes. The resulting IPM / pe t rolate composition (a preferred example of the subject invention has a viscosity that is more than 10 times higher than that of isopropyl myristate alone.) By using the preparation method shown in Example 2, the thickened siloxane / IPM thickener composition in a skin cleansing base (Formulation 10) resulting in a white, pourable viscous liquid (Formulation 14) For the purpose of comparison, the IPM / paraffin wax (a crystalline thickener, not preferred by the subject invention) in the weight ratio of 1: 1 was mixed and heated to 120 ° C to form a clear gel Cool the gel under 20 ° C resulting in a hazy viscous gel.With the preparation method shown in the Example 2, include this paraffin / IPM thickener composition in a skin cleansing base (Formulation 10) resulting in a pourable viscous liquid (Formulation 15).

Formulation No. 14 and No. 15 Materials Formulation No. 14 Formulation No. 15 (invention) (comparative) isethionate 4.2% 4.2% cocoyl sodium betaine propyl 8.3% 8.3-6 coconut sulfate 4.2% "4.2% lauryl ether sodium (3EO) l: l / p / p IPM / 16.7% 0 Petrolatum (invention) l: l / p / p IPM / 0 16.7% Petrolatum (comparative) Water at 100% by weight at 100% by weight As shown in Table 7, the foaming of Formulation No. 14 (invention) is better than Formulation No. 10 (base) and is significantly better than Formulation No. 15 (comparative) containing isopropyl myristate. thickened by paraffin wax, a crystalline thickener material. The results in this Example indicate that conventional crystalline thickening agents, such as paraffin wax, can defoam seriously in the presence of the oil. In contrast, petrolatum, a hydrophobic microcrystalline polymer can season an oil w / o sacrificing the foaming of an aqueous cleaner.

Table 7 Comparison of foam volume of Formulation No. 10, No. 14 and No. 15 EXAMPLE 8: Long Droplet Size and The Size of Geahel Oils in Gels Bañado s The optimal microscopic study showed that Geahlene® 1600 can form more stable, long oil droplets in a cleaner compared to those oils without thickening alone in the oil. cleaner. Such high viscosity, oil droplets of long size are generally desired for the purpose of deposition by the oil object in the skin (see for example, World Patent Nos. WO 94/01084 and WO 94/01085). Figure 1 is a micrograph showing the oil droplets of Geahlene® 1600 16.7% in an aqueous-based formulation containing 8.3% of betaine cocoamidopr opi 1 or, sodium laurate sulfate 4.2% (3EO) and cocoyl isethionate of sodium 4.2%. The non-spherical forms of some oil droplets may be indicative of the high viscosity of Geahlene, which is desired for the purpose of deposition on the skin. In contrast, 16.7% non-thickener (IPM) non-thickener tends to dramatically thin the same base formulation and tends to separate the phase from the aqueous phase volume (ie, a few hours after the sample was prepared). As a result of this instability, very little amount of IPM can be homogeneously dispersed and stabilized in the base formulation.

Also, the dilution caused by the addition of IPM makes the formulation unstable for personal washing applications.

Claims (14)

1. A cleansing composition for liquid skin comprising: a. from 10% to 50% by weight of a surfactant selected from the anionic surfactant group, nonionic surfactants and mixtures thereof; and b. 0.5 to 30% by weight of the total composition of a pre-stressed oil composition with a viscosity greater than 2000 centipoise (cp), where. the pre-thickened oil composition (b) comprises (i) an emollient agent having a viscosity less than 1000 cp and (ii) a polymeric thickener compound; wherein the cleaning composition containing the oil / polymer thickener composition (b) provides a foam rise of at least seven cm or greater after two minutes of the aged foam, as tested by the Ross-Miies method, in where the thickness was selected in such a way that: i. the hydrophobicity of the polymeric thickness is such that it has a solubility of less than 1% by weight when measured in water at 25 ° C; ii. the visibility of oil and / or the dispersibility of the polymeric thickness is such that, in the mixture with the hydrophobic emollient b (i), the thickener composition of po 1 e / ace ite that forms is a homogeneously thickened oil having a viscosity greater than 2000 cp, and that does not have layer separation; iii. the content of crystalline materials in the thickness is less than 20% by weight, and the content of the selected materials of the non-crystalline gels, amorphous non-crystalline solids and microcrystalline waxes in the thickness is greater than 80% by weight.

2. The composition as claimed in Claim 1, wherein (b) (i) is a mineral oil, isopropyl myristate, isopropyl palmitate, silicones or benzoate esters, or mixture thereof; and the thickening agent (b) (i) is a mixture of at least 2 different polymer members selected from diblock copolymers, triblock copolymers, radial block copolymers and multiblock copolymers, provided that it is contained in the composition at least a diblock copolymer or at least one triblock copolymer, with at least one diblock copolymer or at least one triblock copolymer comprising from 5 to 95% by weight of the mixture of at least two different polymers, said diblock and triblock polymers which comprise segments of styrene monomer units and rubber monomer units.

3. The composition according to claim 1, wherein (b) (i) comprises 10% to 90% by weight of a soluble hydrophobic silicone emollient agent with lower viscosity than 1000 cp selected from diisopropyl sebacate, octyl isononanoate, octanoate of isodecyl, diethylene glycol, isopropyl myristate, isocetyl palmitate, isopropyl isostearate, isocetyl palmitate, isostearyl palmitate, diglyceryl diisoate malate, diglyceryl isostearate, diisopropyl dimerate, diglyceryl di tates, and mixtures thereof; and (b) (ii) comprises silicone oil of 10% to 90% by weight having viscosity greater than 2000, optionally greater than 5,000 cp. for example greater than 10,000 cp.

4. The composition according to claim 1, wherein (b) (i) comprises 5% to 80% by weight of an emollient agent with a viscosity less than 1000 cp selected from the following: dispersible compounds and miscible silicone: mineral oil, lanolin oil, coconut oil, jojoba oil, maleated soybean oil, castor oil, almond oil, peanut oil, wheat germ oil, bran oil, flaxseed oil, apricot kernel oil, walnut , palm kernel, pistachio nut, sesame seeds, rape seed, juniper oil, corn oil, peach pit oil, poppy seed oil, pine oil, soybean oil, avocado oil, oil sunflower seed, hazelnut oil, olive oil, grape seed oil, safflower oil and babassu oil and mixtures thereof; and (b) (ii) comprises 20% to 95% by weight of silicone oil having a viscosity greater than 2000 cp, optionally greater than 10,000 cp.

5. The composition according to claim 4, wherein (b) (i) comprises 20% to 60% by weight of the composition (b) (ii) comprises 40% 80% by weight of the composition and (b) (ii) ) has a viscosity greater than 10,000 cp.

6. The composition according to claim 1, wherein (b) (i) comprises a hydrophobic emollient agent with viscosity lower than 1000 cp selected from mineral oil, sorbitol, lanolin oil, coconut oil, jojoba oil, oil of maleated soybean, castor oil, almond oil, peanut oil, * wheat germ oil, bran oil, linseed oil, apricot kernel oil, walnut, palm kernel, pistachio nut, sesame seeds, rape seed, juniper oil, corn oil, peach kernel oil, poppy seed oil, pine oil, soybean oil, avocado oil, sunflower seed oil, hazelnut oil, olive oil, grapeseed oil and safflower oil, Shea butter, babassu oil, isopropyl myristate and mixtures thereof; and (b) (ii) comprises from 10% to 80% by weight of microcrystalline waxes having viscosity greater than 2000 cp, optionally greater than 10,000 cp.

7. The composition as claimed in any of the preceding claims, wherein the skin cleansing composition comprises 10% to 30% by weight of a surfactant selected from anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants and mixtures thereof. my smo s

8. Furthermore, the composition as claimed in any of the preceding claims, further comprises from 0 to 25% by weight of an ingredient selected from organic solvents, optionally ethanol; auxiliary agents and thickeners, optionally selected from carboxymethylcellulose, io-aluminum magnesium silicate, hydroxyethylcellulose, methylcellulose, carbopol, glucamides and mixtures thereof, perfumes; sequestering agents, optionally tetrasodium t-lendiamin-tetraacetate (EDTA) 0.01 to 1%, EHDP or mixtures thereof; dyeing agents, opacifier and optionally selected dessicants of zinc stearate, magnesium stearate, ethylene glycol monostearate Ti02 and styrene / acrylate copolymers.

9. The composition as claimed in any of the preceding claims, wherein the composition further comprises: (i) from 0 to 5% by weight of antimicrobials, optionally wherein the antimicrobial is 2-hydroxy-4,2 ', 4' -trichlorodiphenylether (DP300); (ii) from 0 to 5% by weight, condoms, optionally where the condom is selected from dime t i ldime t i lhidant or ina (Glydant XL1000 ™), parabens and sorbic acid; (iii) coconut acyl, mono- or dimethylamines and ionized salts, optionally ionized salt is sodium chloride or sodium sulfate; (iv) 0 to 3% by weight anti- oxidant is, optionally, wherein the antioxidant comprises 0.01 and high butylated hydroxytoluene (BHT); (v) from 0 to 5% by weight of cation ionic conditioners; (vi) from 0 to 10% by weight of nonionic polyethylene glycols having a molecular weight between 200 and 20,000 Daltons; or (vii) exfoliants, optionally wherein the exfoliates are polyoxyethylene beads foaming a liquid, walnut shells and apricot coke seed.

10. The composition as claimed in any of the preceding claims, wherein the composition further comprises 0.1 to 15% by weight of a branched or unsaturated branched or unsaturated C8-C24 liquid fatty acid structurant or an ester derivative thereof; C8_C24 branched and unsaturated branched or unsaturated liquid alcohol or ether derivatives thereof.

11. The composition according to claim 10, wherein the structurant was selected from capric acid or caprylic acid, oleic acid, isostearic acid, linoleic acid, linolenic acid, ricinoleic acid, elaidic acid, ichidonic acid, myristoleic acid and palmi-tonic acid . Ester derivatives include propylene glycol isostearate, propylene glycol oleate, glyceryl isostearate, glyceryl oleate and polyglyceryl diols. Examples of alcohols include oleyl alcohol and alcohol iso s t ear i i co. Examples of ether derivatives include isostearyl carboxylic acid or olet; or alcohol isoestearet or olet; and wherein the structuring agent has a melting point below about 25 ° C.

12. The composition according to claim 1, wherein the pre-thickening oil composition has a viscosity greater than 5,000 cp, optionally greater than 10,000 cp.

13. The composition according to claim 1, wherein the liquid skin cleansing composition contains from 5% to 25% by weight of the pre-speeded oil composition.

14. The composition according to claim 1, wherein the liquid skin cleansing composition contains the pre-thickener oil provided from a high foam that is at least 30% greater than that provided by a comparative liquid composition containing the same percentage thereof. low viscosity oil (viscosity less than 1000 cp) that has to be pre-thickened by crystalline thickeners, selected from polyethylene wax or paraffin, C? 8-C22 fatty acid soap and smoky silica, as tested by the Ross method -Myies after two minutes of aging of the foam.