MXPA00001862A - Cleansing compositions - Google Patents

Abstract

A rinse-off liquid personal cleansing composition comprising surfactant, water and a water-insoluble oil wherein the water-insoluble oil provides a Mean Rinse Feel Value for the composition of 3.5 or less as measured by the Rinse Feel Panel Test. The personal cleansing compositions of the invention provide excellent rinse feel and skin mildness.

Description

CLEANING COMPOSITIONS TECHNICAL FIELD The present invention relates to cleaning compositions.

In particular the invention relates to mild personal cleansing compositions which exhibit improved rinsing sensation in combination with good skin feel attributes, and foaming properties which are suitable for simultaneously cleaning and conditioning the skin and / or hair and which can be used, for example, in the form of foam bath preparations, shower bath products, skin cleaners, hands, face and body cleaners, shampoos, etc.

BACKGROUND OF THE INVENTION The mild cosmetic compositions must satisfy a number of criteria including cleaning energy, foaming properties and softness / low irritability / good feeling with respect to the skin, hair and ocular mucosa. The skin is made up of several layers of cells that line and protect the underlying tissue. The fibrous proteins of keratin and collagen form the skeleton of its structure. The outermost layer is referred to as the stratum corneum. Similarly, the hair has an outer protective coating that covers the fiber of the hair that is called ^^^^^^^^^^^ j ^^^^^^^ A ^ ^^^^^^ cuticle. Anionic surfactants can penetrate the stratum corneum membrane and the cuticle and, through delipidization, destroy the integrity of the membrane and lose barrier and water retention functions. Such interference with the protective membranes of the skin and hair 5 can lead to a rough feeling of the skin and irritation of the eyes and can eventually allow the surfactant to trigger the irritation that creates an immune response. Ideal cosmetic cleaners should gently cleanse the skin or hair without interrupting the structural lipids and / or drying the hair and skin and without irritating the ocular mucosa or making the skin dense after frequent use. The most sparkling soaps, shower bath products, shampoos and bars fail in this regard. Certain synthetic surfactants are known to be mild. However, a major drawback of some systems of mild synthetic surfactant when formulated for shampooing or personal cleansing is that they have what could be described as a "slippery" or "slippery" rinse sensation that is not pleasant for some consumers. The use of certain surfactants such as potassium laurate, on the other hand, can yield an operation of acceptable rinsing sensation but at the expense of the clinical softness of the skin. These two facts make the selection of suitable surfactants in the formulation process of rinsing sensation and benefit of softness an act of delicate balance. ^^^ i ^ a ^^^^^^^^^ agg ^^^^^ g = ^^^^^^ g ^^^^^ In this way, there is a need for personal cleansing compositions that provide a "non-slip" rinsing sensation, while at the same time having excellent skin softness, in addition to excellent product characteristics, such as foam, cleaning, stability, thickening, rheology and skin feel attributes in use. Certain polyalphaolefin oils are known for their use in personal cleansing compositions for the skin and hair. References for the use of such oils in personal cleansing formulations are found in WO 97/09031, E.U.A.-A-5441730, WO 94/27574, EP-A-0692244, WO 96/32092 and WO96 / 06596. Hydrophobically modified silicone oils are also known for their use in personal cleansing compositions and are described for example in JP 05-310540. Surprisingly, it has been found that personal cleansing compositions which have a "non-slip" rinsing sensation which at the same time have excellent softness characteristics are provided by a combination of certain water-insoluble oils., such as certain polyalphaolefin oils or hydrophobically modified silicone oils, in combination with a water-soluble surfactant system. While not wishing to be bound by theory, the feeling of "non-slip" rinse is considered associated with an increase in wet skin friction. An important mechanism for the action of said oils is considered as the ability of these to deposit and change the surface energies of the skin, that is, to make the surface of the skin more hydrophobic. During rinsing, the water film is considered to be the lubricant for the skin, since the hydrophobic character of the surface is increased so that the water film becomes unstable and the surface dehumidifies. As a result, the water film first becomes thin and then moves, allowing some direct contact between the surfaces. Both changes increase friction and produce "non-slip rinsing".

BRIEF DESCRIPTION OF THE INVENTION In accordance with the present invention, a personal rinsing cleaning composition comprising water, surfactant and water insoluble oil is provided wherein the water-insoluble oil has an average rinse sensation value of 3.5 or less as measured by the rinsing sensation panel test. The compositions of the present invention provide an improvement in the rinsing sensation while at the same time being exceptionally gentle for the skin. All concentrations and ratios herein are by weight of the cleaning composition, unless otherwise specified. The chain lengths of surfactant are also based on ^^^ á ^ s i ^ i? ^? ^^ s on the average chain length by weight, unless otherwise specified.

DETAILED DESCRIPTION OF THE INVENTION The liquid cleaning compositions herein comprise water, surfactant and oil soluble in water wherein the water insoluble oil provides an average rinse sensation value of 3.5 or less as measured by the rinse sensing panel test. described later. Preferably, the water insoluble oil provides an average rinse feel value for the composition of 3.25 or less, more preferably 3.0 or less. In the preferred embodiments, the composition has an average rinse sensation value on the scale of 3.5 to 1.0. It should be noted that the water insoluble oil is directly attributed to providing a "non-slip" rinsing sensation for the compositions herein and in particular to provide an average rinse sensation value for the compositions of 3.5 or less. In other words, a composition equivalent to the compositions of the present invention but without a water insoluble oil as defined herein will have an average rinse feel value greater than 3.5. As used herein, the term "rinsing sensation" refers to the feeling of the skin during the foaming procedure Rinse the skin after cleaning it with a rinse aid. The type of rinsing sensation that is provided by the compositions of the present invention can be described by terms such as "non-slip" rinsing sensation, a "soap-like" rinsing sensation and a "non-slipping" rinsing sensation. "or" not viscous ". A "non-slip", "soap-like", "non-slip" or "non-viscous" rinsing sensation can be detected by an increase in friction between the hand and skin during the skin rinsing procedure. As used herein, the term "insoluble in water" with The relation to oils, refers to a material that is substantially insoluble, distilled at room temperature without the addition of other adjuncts and / or ingredients such as those described herein. The water-insoluble oils for use in the personal cleansing compositions of the present invention include (a) polyalphaolefins highly branched that have the following formula: wherein R 1 is H or C 1 -C 2 alkyl, R 4 is CrC 2 alkyl, R 2 is H or Cr 20 C 20, and R 3 is C 5 -C 20, n is an integer from 0 to 3 and m is an integer from 1 to 1000 and has a number average molecular weight of from about 1000 to about 25,000, preferably from about 2000 to about 6000, more preferably from about 2500 to about 4000.

Preferably, the polyalphaolefins of type (a) which are used herein have a viscosity of from about 300 cst to about 50,000 cst, preferably from about 1000 cst to about 12,000 cst, more preferably from about 1000 cst to about 4000 cst at 40 ° C using the ASTM method D-445 to measure the viscosity. Oils of type (a) may also have a degree of unsaturation, but are preferably saturated. Polyalphaolefins of type (a) suitable as described above can be derived from 1-alkylene monomers having from about 4 to about 20 carbon atoms, preferably from about 6 to about 12 carbon atoms, especially from about 8 to about 12 carbon atoms. The polyalphaolefins useful herein are preferably hydrogenated polyalphaolefin polymers. Non-limiting examples of 1-alkylene monomers for use in the preparation of the polyalphaolefin polymers herein include 1-hexene, 1-ketene, 1-decene, 1-dodecene, 1-tetradecene, branched chain isomers such as 4-methyl-1-pentene, and combinations thereof. Also suitable for the preparation of polyolefin liquids are 1-hexene to 1-hexadecenes and combinations thereof, more preferably 1-ketene to 1-dodecene or combinations thereof. Examples of such oils include polydecene oils such as those commercially available from Mobil Chemical Company, P.

^ M¡¡ | ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Box 3140, Edison, New Jersey 08818, E.U.A. under the tradename Puresyn 100. Other water-insoluble oils suitable for use herein include peralk (en) yl materials of type (b) having the following formula: wherein R1 is H or CrC alkyl, R4 is CrC4 alkyl, R2 is H or C4 alkyl, or C2-C4 alkenyl, and R3 is H or CrC4 alkyl, or C2- C4 alkenyl, n is an integer from 0 to 3 and m is an integer from 1 to 1000 and has a number average molecular weight of from about 600 to about 1000, preferably from about 750 to about 1000, especially from about 800 to about 1000. Preferably, branched alkyl (en) yl materials of type (b) have a scale viscosity of about 500 cst to about 50,000 cst, preferably from about 1000 cst to about 10000 cst measured at 40 ° C using the method ASTM D-445 to measure viscosity. Oils of type (b) can be unsaturated or saturated. Suitable alk (en) yl materials of type (b) for use herein are butene, isoprene, terpene, styrene or isobutene polymers, preferably butene or isobutene.

Examples of alk (en) yl oils of type (b) include polybutene oil such as oils commercially available from Amoco under the tradename Indopol 40 and Indopol 100, and polyisobutene oils such as Permetil 104A from Presperse Inc. and Parapol 950 from Exxon Chemical Inc. Also suitable for use herein are hydrophobically modified silicones having the following formula: wherein R is alkyl or phenyl of CrC4, R 'is alkyl or phenyl of C? -C20, z is 5 to 21, and x has an average value number on the scale of about 20 to 400, "and" has a Average value number on the scale of around 0 to about 10 and x + and is on the scale of 30 to 400. The materials Preferred have values for x from 40 to 200, preferably 60 to 100, values for "y" from 0 to 5, preferably 0, and values for the sum of x and "y" from 60 to 100. The alkylene chain z It can be linear or branched. In addition, the silicone structure in hydrophobically modified silicone may contain a small degree of branching to yield a resin (eg resins).

MDQ or MDT). Examples of such oils include those hydrophobically modified silicones available from GE Silicones under the tradename SF1632 (C16-C18 alkylmetone), and octyl and decylmethone.

Mixtures of the above water-insoluble oils are also suitable for use herein. Particularly preferred from the viewpoint of rinsing sensation of improving the composition is a highly branched polyalphaolefin material of type (a) having a number average molecular weight of about 2500 to about 4000 and a viscosity of about 100 cst at about 2000 cst (ASTM D-445 at 45 ° C) such as commercially available from Mobil under the tradename Puresyn 100. In the preferred embodiments, the average particle diameter number for the water-insoluble oil used in the present one it is in the scale of around 1 miera to around 500 microns, preferably of around 5 to 200 microns, more preferably of around 5 to 50 microns and especially of around 5 to 20 microns. It is preferred for the compositions herein to provide not only a "non-slip" rinsing sensation but also a "non-sticky" or "non-sticky" feeling on the skin at the time of rinsing. Therefore, it is preferred to use water-soluble oils that can be described as "non-sticky". The degree of thickness for water-soluble oils can be measured by the technical tack-testing method detailed below. In the preferred embodiments, the water-soluble oil used herein has a tack index of 120% for Viscasil 5M (Dimethicone) or less as measured by the tackiness test method described hereinbelow. Most preferred are those with a tack index of 110% for Viscasil 5M (Dimethicone) or less, especially preferred are those with a tackiness index of 100% for Viscasil 5M (Dimethicone) or less, especially 1% to 100. %.

Technical test method for tackiness The technical test method for tackiness described in The present invention was developed using the basic tack theory. The basic theory of tackiness was summarized in the Stefan equation that describes the viscous separation resistance for two disks connected by a "thin pressure film" of liquid. This is also used in other areas of technology where the evaluation of tackiness is critical, for example, printing ink. The reference to the basic tack theory can be found in the article by Phillips, J.C. and Chaing, A. C, "Low Speed Tack Measurements of Fluids and Inks ", J. Applied Polymer Science, 1995, 58, 881- 895. A simplified form of the Stefan equation is shown to continuation for the maximum force, F, applied for time, r, to separate the disks that have a radius r connected by a liquid film that has a thickness h and viscosity?: F = z 3.p.?r4 (1) B.t.h2 ¿J iifc t§ £ i «a» > »Arf ^? * - *** mma? From this equation, and when the surfaces are separated at a velocity v, the separation force becomes: F = k.?. v (2) where k is a constant if h and r are fixed in a series of comparative experiments. The above is the basis for determining the relative tackiness of oils. The instrument used is an Instron 4301 voltage tester, coupled with a 10N load cell and 10 mm diameter of a soft steel plate in the movement crosshead. The fixed lower plate is also made of mild steel and has a flexible rubber spring (56 N / mm) and leveling device coupled with the base of the instrument. The same plates and spring assembly are used to establish the comparison measurements. The plates are approximated and placed in parallel using the leveling device. The contact force is calculated for each oil to give a consistent film thickness of the equation: F = 0.0726. ? (3), where? is the viscosity of the oil in Pa.s, F is the contact force in N. The machine is prepared to stop a compression force of F. Approximately three drops of oil are placed on the bottom plate, directly below the plate higher. The plates come together, maintaining the required force for one minute. The tension speed is set at 1 mm / min and the maximum force is recorded as the stickiness observation. The plates were joined again and a total of three observations were collected. As a verification for the most remote observations, the scale / average for the three observations should be less than 10%. If the above does not happen, three other observations are collected. Three reference oils are included in each series of comparisons, and these are Indopol H100, Viscasil 5M (Dimethicone) and SF1000. The three oils cover a stickiness scale and their data are used to determine the relative tackiness of the other oils and to evaluate the method of reproducibility. In each experiment, the maximum force ratio for an oil is expressed as a percentage of the value for Viscasil 5M (Dimethicone), and this is the stickiness index. When the above is correctly established, a coefficient of variation of less than 15% is expected in said data. The significant differences of a series of oils are determined using an ANOVA form of logarithm of transformed force data.

Results 1. Pressure force conditions for stickiness measurement 2. Average separation force at a separation speed of 1 mm / min In the statistical analysis, each oil is significantly (95%) different for tack 3. Reproductibility of stickiness index of 5 separate experiments. 1. - Polyalphaolefin supplied by Mobil Chemical Co., P: 0: Box 3140, Edison, New Jersey 08818, E.U.A. 2. Polybutene supplied by Amoco Chemical Co., 200 East Randolfph Drive, Chicago, Illinois 60601-7125 E.U.A. 3.- Supplied by GE Silicones, 4.- Polyisobutene supplied by Presperse Inc. P.O.Box 735, South Plainfield, N.J. 07080, E.U.A Particularly preferred in the present from the viewpoint of reduced tackiness provision are the polyalphaolefin materials of the type (a) described above having the following formula: R &R > 11_-f (_-f (_-C_-, (CH2) n) m-_Rp4 Rc wherein R1 is H or CrC2o alkyl, R4 is CrC2o alkyl, R2 is H or d-C2o, and R3 is C? -C2o preferably of C5-C2o, n is an integer from 0 to 3 and m is an integer from 1 to 1000 and having a number average molecular weight of from about 2500 to about 4000 and a viscosity of about 1000 cst at about 2000 cst at 40 ° C using the ASTM-D445 method to measure the viscosity, such as that available from Mobil under the tradename Puresyn 100. The compositions herein preferably comprise about 0.1% to about of 20%, more preferably from about 0.5% to about 10%, especially from about 1% to about 5% by weight of water-insoluble oil.

Surfactant System As an essential feature, the compositions of the present invention comprise a surfactant system of water-soluble surfactants. "Water-soluble," as defined herein, refers to a surfactant having a molecular weight of less than about 20,000 where the surfactant is capable of forming a clear isotropic solution when dissolved in water at 0.2% w / w. environmental conditions. Suitable surfactants for inclusion in compositions according to the present invention generally have a lipophilic chain length of from about 6 to about 22 carbon atoms and can be selected from agents ~ ^ -.! ú3¿ & * t? * g »H j ^ anionic, nonionic, zwitterionic and amphoteric surfactant and mixtures thereof. The total level of surfactant is preferably from about 2% to about 40%, more preferably from about 3% to about 20% by weight, and especially from about 5% to about 15% by weight. The compositions preferably comprise a mixture of anionic surfactant with zwitterionic and / or amphoteric surfactants. The weight ratio of anionic surfactant: zwitterionic and / or amphoteric surfactant is on the scale of about 1: 10 to about 10: 1, preferably about 1: 5 to about 5: 1, more preferably from about 1: 3 to 3.1. Other suitable compositions within the scope of the invention comprise mixtures of anionic, zwitterionic and / or amphoteric surfactants with one or more nonionic surfactants. The compositions of the invention may comprise a water-soluble anionic surfactant at levels of from about 0.1% to about 20%, more preferably from about 0.1% to about 15%, and especially from about 1% to about 10% in weigh. Water-soluble anionic surfactants suitable for inclusion in the compositions of the invention include alkyl sulphates, ethoxylated alkyl sulfates, alkylethyloxycarboxylates, alkyl glyceryl ether sulfonates, ethoxyethersulfonates, methylacyltaurates, fatty acylglycinates, N-acylglutamates, acyl isethionates, alkyl sulfosuccinates, alkylethylsulphosuccinates, alpha-sulfonated fatty acids, their salts and / or their esters, alkyl phosphate esters, ethoxylated alkyl phosphate esters, acyl sarcosinates and fatty acid / protein condensates, soaps such as ammonium, magnesium, potassium, triethanolamine and sodium salts of lauric acid, myristic acid and palmitic acid, acyl aspartates, alkoxy cocoamide 5 carboxylates, alkanolamide sulfosuccinates ethoxylated, alkyl citrate sulfosuccinates ethoxylated, acyl ethylene diamine triacetates, acylhydroxyethyl isethionates, acylamide alkoxysulfates, linear alkylbenzenesulfonates, paraffinsulfonates, alpha olefin sulphonates, alkyl alkoxysulfates, and mixtures thereof. The alkyl and / or acyl chain lengths for these surfactants are C6-C22, preferably C? 2-C? 8, more preferably C? 2-C? 4. Additional water-soluble anionic surfactants suitable for use in the compositions according to the present invention are the sulfuric acid ester salts of the reaction product of 1 mole of a higher fatty alcohol and of about 1 to about 12 moles of ethylene oxide, the preferred counterions being sodium, ammonium and magnesium. Particularly preferred are the alkyl ethoxy sulfates containing about 2 to 6, preferably 2 to 4 moles of ethylene oxide, such as sodium laureth-2 sulfate, sodium laureth-3 sulfate, laureth-3 ammonium sulfate and laureth-3.6 sodium magnesium sulfate. In preferred embodiments, the anionic surfactant contains at least about 50%, especially at least about 75% by weight ethoxylated alkyl sulfate.

In addition to the broad scale ethoxylated alkyl sulphates obtained by conventional sodium catalyzed ethoxylation techniques and subsequent sulfation processes, the ethoxylated alkyl sulphates obtained from narrow scale ethoxylates (NREs) are also water soluble anionic surfactants suitable for use in the present compositions. . The narrow scale ethoxylated alkyl sulphates suitable for use herein are selected from sulfated alkyl ethoxylates which contain on average from about 1 to about 6, preferably from about 2 to about 4, and especially about 3 moles of ethylene oxide. such as laureth-3 NRE sodium sulfate. The NRE materials suitable for use herein contain desired ethylene oxide (EOn) distributions at scales of from about 15 to about 30% by weight of EOn, from about 10 to about 20% by weight of EOn +? and from about 10% to about 20% by weight of EOn- ?. The highly preferred NRE materials contain less than about 9% by weight of ethoxylated alkyl sulfate having 7 or less moles of ethylene oxide and less than about 13% by weight of non-ethoxylated alkyl sulfate. Suitable NRE laureth-3 sulfate materials are available from Hoechst under the trade names of narrow-scale GENAPOL and narrow-scale GENAPOL. The compositions of the present invention may contain, as a water-soluble anionic surfactant, an alkyl ethoxy carboxylate surfactant at a level of from about 0.5% to about 15%, preferably from about 1% to about 10%, more preferably from about 1% to about 6%, and especially about 1% to about 4% by weight. The alkyl ethoxy carboxylate surfactant is particularly valuable in the compositions according to the present invention, for the provision of excellent attributes of softness to the skin in combination with excellent rinse performance and desirable foaming characteristics. Suitable alkylethoxycarboxylates for use herein have the general formula (I): R3O (CH2CH2O) kCH2COO "M + wherein R3 is an alkyl or alkenyl group of C14 to C15, preferably an alkyl group of Cn-C5 , more preferably a C 2 -d 4 alkyl or C 1 -C 3 alkyl, k is an average ethoxylation value ranging from 2 to about 7, preferably from about 3 to about 6, more preferably from about 3.5 to about 5.5, especially about 4 to about 5, most preferably about 4 to about 4.5, and M is a water solubilizing cation, preferably an alkali metal, alkaline earth metal, ammonium, lower alkanolammonium and mono-, di- and tri-ethanol ammonium, more preferably sodium, potassium and ammonium, most preferably sodium and ammonium, and mixtures thereof with magnesium and calcium ions.

Particularly preferred as water-soluble anionic surfactants suitable for use herein are alkyl ethoxy carboxylate surfactants having a selected alkyl and / or ethoxylate chain length distribution. In this manner, the alkyl ethoxy carboxylate surfactants suitable for use in the compositions according to the present invention, may comprise a distribution of alkyl ethoxy carboxylates having different average values of R3 and / or k. The average value of k will generally be in the range of about 3 to about 6 when the average R3 is Cu, C? 2, C? 3 or C. Preferred water-soluble anionic alkyl ethoxy carboxylate surfactants suitable for use herein are the ethoxy carboxylates of C 2 to Cu (EO 3-6 on average) and the ethoxy carboxylates of C 2 to C 3 (EO) 3-6 on average). Suitable materials include NEODOX 23-4 (RTM) salts available from Shell Inc. (Houston, Texas, E.U.A) and EMPICOL (RTM) CBCS (Albright &; Wilson). Highly preferred for use herein, are the alkyl ethoxy carboxylate surfactants, wherein when R3 is an alkyl group of C2-d4 or C2-C3 the average value of k is on the scale of from about 3 to about 6, more preferably from about 3.5 to about 5.5, especially from about 4 to about 5. In preferred embodiments, the compositions are substantially soap-free, ie they contain less than about 5%, preferably less than about 1%, preferably 0%, by weight of soap. The compositions according to the present invention may comprise water-soluble nonionic surfactants at levels of from about 0.1% to about 20%, more preferably from about 0.1% to about 10%, and especially from about 1% to about of 8% by weight. Surfactants of this class include sucrose polyester surfactants, C10-C18 alkyl polyglycosides and polyhydroxy fatty acid amide surfactants having the general formula (III) The N-alkyl, N-alkoxy, N-aryloxy polyhydroxy fatty acid amide surfactants according to formula (III) are those in which Re is C5-C3 hydrocarbyl, preferably Cβ-Cig hydrocarbyl , including straight chain and branched chain alkyl and alkenyl, or mixtures thereof R9 is typically hydrogen, alkyl or hydroxyalkyl of d-C8, preferably methyl, or a group of the formula R1-0-R2, wherein R1 is C? -C8 hydrocarbyl, including straight chain, branched and cyclic chain (including aryl), and is preferably C2-C alkylene, R2 is straight chain, branched chain and cyclic hydrocarbyl including aryl and oxyhydrocarbyl, and is preferably of C? -C4 alkyl, especially methyl or phenyl. Z2 is a polyhydroxyhydrocarbyl moiety having a linear hydrocarbyl chain with at least 2 (in the case of glyceraldehyde) or at least 3 hydroxyls in the case of other reducing sugars) directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated) or propoxylated) thereof. Z2 will preferably be derived from a reducing sugar in a reductive amination reaction, more preferably Z2 is a glycityl moiety. Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose and xylose, as well as glyceraldehyde. As starting materials, high dextrose corn syrup, high fructose corn syrup, high maltose corn syrup as well as the individual sugars listed above can be used. Such corn syrups can produce a mixture of sugar components for Z2. It should be understood that by no means is it intended to exclude other suitable starting materials. Z2 will preferably be selected from a group consisting of CH2- (CHOH) n -CH2OH, CH (CH2OH) - (CHOH) n -? - CH2OH, CH2 (CHOH) 2 (CHOR ') CHOH) -CH2OH, wherein n is an integer from 1 to 5, inclusive, and R 'is H or a cyclic mono- or polysaccharide, and alkoxylated derivatives thereof. As noted, the most preferred are glycityls wherein n is 4, particularly CH2- (CHOH) 4-CH2OH. The most preferred polyhydroxy fatty acid amide has the formula R8 (CO) N (CH3) CH2 (CHOH) 4CH2OH wherein R8 is a straight chain alkyl or alkenyl group of C6-C19. In the compounds of the above formula, R8-CO-N < it can be, for example, cocoamide, esteramide, oleamide, a &Bsfcs lauramide, myristamide, capricamide, caprilicamide, palmitamide, seboamide, etc. Exemplary nonionic surfactants suitable for use in the compositions according to the present invention include primary amines such as cocaine (available as Adagen 160D (TM) from Witco) and alkanolamides such as cocamide MEA (available as Empilan CME (TM)) from Albright and Wilson), cocamide from PEG-3, cocamide DEA (available as Empilan CDE (TM) from Albright and Wilson), MEA from lauramide (available as Empilan LME (TM) from Albright and Wilson), MIPA from lauramide, DEA of lauramide, and mixtures thereof. Suitable amphoteric surfactants for use herein include (a) ammonium derivatives of the formula [V]: R? CON (CH2) 2NCH2CO2M R2 R2 where Ri is C5-C22 alkyl or alkenyl, R2 is CH22CH2OH or CH2CO2M, M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium and R3 is CH2CH2OH or H; (b) aminoalkanoates of the formula [VI] R? NH (CH2) nC02M iminodyalkanoates of the formula [VII] R? N [(CH2) mCO2M] 2 and iminopolyalkanoates of the formula (VIII) R1 [N (CH2) p] q - N [CH2C02M] 2 CH2CO2M where n, m, p and q are numbers from 1 to 4, and Ri and M are independently selected from the groups specified above; and (c) mixtures thereof. Suitable amphoteric surfactants of type (a) include compounds of formula (V) wherein Ri is CnH23. Suitable amphoteric surfactants of type (a) are marketed under the trade name Miranol and Empigen. In the CTFA nomenclature, materials suitable for use in the present invention include cocoanfocarboxipropianate, cocoanfocarboxipropionic acid, cocoa nfoacetate, cocoanhydride acetate (otherwise referred to as cocoanfocarboxiglycinate), sodium lauroanfoacetate (otherwise referenced as sodium lauroanfocarboxiglycinate) . Specific commercial products include those sold under the trade names of Ampholak 7TX (sodium carboxymethyl sebopropylamine), Empigen CDL60 and CDR 60 (Albrigth &Wilson), Miranol H2M Conc. Miranol C2M Conc. NP, Miranol C2M Conc. OP , Miranol C2M SF, Miranol CM Special, Miranol Ultra L32 and C32 (Rhóne-Poulenc); Alkateric 2CIB (Alkaril Chemicals); Amphoterge W-2 (Lonza, Inc.); Monateric CDX-38, Monateric CSH-32 (Mona Industries); Rewoteric AM-2C (Rewo Chemical Group); and Schercotic MS-2 (Scher Chemicals).

It will be understood that various commercially available amphoteric surfactants of this type are manufactured and sold in the form of electroneutral complexes with, for example, hydroxide counterions or with anionic sulfate or sulphonate surfactants, especially those of the C8 sulfated alcohol types. -C? 8, ethoxylated alcohol of C8-C? 8 or acylglyceride of C8-C? 8. However, preferred from the standpoint of softness and product stability, however, are compositions that are essentially free of sulfated alcohol surfactants (non-ethoxylated). Note also that the concentrations and weight ratios of the amphoteric surfactants are based herein on the non-complex forms of the surfactants, any counterion of anionic surfactant considered as part of the content of the general anionic surfactant component. Examples of suitable amphoteric surfactants of type (b) include polycarboxymethylamines of N-alkylpolytrimethylene sold under the tradenames Ampholak X07 and Ampholak 7CX and Berol Nobel and also their salts, especially the triethanolammonium salts and salts of N-lauryl-beta- aminopropionic and N-lauryl-imino-dipropionic. These materials are sold under the trade name Deriphat by Henkel and Mirataine by Rhéne-Poulenc. The compositions herein may also contain from about 0.1% to about 20%, more preferably from about ^^^^^^^^^^^^^^^^^^^^^^^^^^^ jgj ^^^^^^ jjjgfg ^ g ^ K ^^^^^^^^^^^ ^ mf A ^^^^^^^^^^ 0.1% to about 10%, and especially from about 1% to about 8% by weight of a zwitterionic surfactant. Suitable water-soluble betaine surfactants for inclusion in the compositions of the present invention include alkylbetaines of the formula R5R6R7N + (CH2) nCO2M and amidobetaines of the formula (IX) wherein R5 is Cs-C22 alkyl or alkenyl, Re and R7 are independently C?-C3 alkyl, M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium, and n, m are each numbers from 1 to 4. Preferred betaines include cocoamidopropyldimethylcarboxymethylbetaine, commercially available from TH Goldschmidt under the trade name Tegobetaine, and laurylamidopropyl dimethylcarboxymethylbetaine, commercially available from Albright and Wilson under the trade name Empigen BR and TH Goldschmidt under the trade name Tegobetaína L10S. Soluble water-soluble sultaine surfactants suitable for inclusion in the compositions of the present invention include alkylamidosultaines of the formula; wherein Ri is alkyl or alkenyl of C to C22, R2 and R3 are independently Ci to C3 alkyl, M is H, alkali metal, alkaline earth metal, ammonium or alkali ammonium and m and n are numbers from 1 to 4. Suited for use herein is cocoamidopropylhydroxysultaine which is commercially available under the trade name Mirataine CBS of Rhône-Poulenc. Suitable water-soluble amine oxide surfactants for inclusion in the compositions of the present invention include alkylamine oxide R5R6R7NO and amidoamine oxides of the formula wherein R5 is Cu alkyl or alkenyl at C22, Re and R7 are independently C1 to C3 alkyl, M is H, alkali metal, alkaline earth metal, ammonium or alkali ammonium and m is number from 1 to 4. Preferred amine oxides include cocoamidopropylamine oxide, lauryldimethylamine oxide and myristyldimethylamine oxide.

Polymeric cationic conditioning agent The compositions according to the present invention can optionally include a polymeric cationic conditioning agent.

Polymeric cationic conditioning agents are valuable in the compositions according to the present invention to provide the desirable attributes of skin sensation. The polymeric skin conditioning agent preferably is present at a level of from about 0.01% to about 5%, preferably from about 0.01% to about 3% and especially from about 0.01% to about 2% in weigh. Suitable polymers are materials of high molecular weight (mass-average molecular weight determined, for example, by light scattering, being generally from about 2,000 to about 5,000,000, preferably from about 5,000 to about 3,000,000, more preferably from 100,000 to around 1, 000,0000). Representative classes of polymers include cationic guar gums, cationic polysaccharides; cationic homopolymers and copolymers derived from acrylic and / or methacrylic acid, cationic cellulose resins, quaternized hydroxyethylcellulose ethers, cationic copolymers of dimethyldiallylammonium chloride and acrylamide and / or acrylic acid; cationic homopolymers of dimethyldiallylammonium chloride; copolymers of dimethyl amino acrylate and acrylamide, copolymers of dimethyldiallylammonium chloride and acrylamide, acrylic acid / dimethyldiallylammonium chloride / acrylamide copolymers, quaternized vinylpyrrolidone methacrylate copolymers of amino alcohol, quaternized copolymers of vinylpyrrolidone and dimethylaminoethyl methacrylamide, copolymers of metachloride of vinylpyrrolidone / vinylimidazole and polyalkylene mines and ^ sBt? & ethoxyethoxy-polyalkylene; quaternized silicones, terpolymers of acrylic acid, methacrylamidopropyltrimethylammonium chloride and methacrylate, and mixtures thereof. By way of exemplification, cationic polymers suitable for use herein include cationic guar gums such as hydroxypropyltrimethylammonium guar gum (ds 0.11 to 0.22) commercially available under the trade names Jaguar C-14-S (RTM) and Jaguar C -17 (RTM) and also Jaguar C-16 (RTM), which contains hydroxypropyl substituents (ds of 0.8-1.1) in addition to the cationic groups specified above, and quaternized hydroxyethylcellulose ethers commercially available under the trade names Ucare Polymer JR- 30M, JR-400, LR400, Catanal (RTM) and Celquat. Other suitable cationic polymers are the homopolymers of dimethyldiallylammonium chloride commercially available under the tradename Merquat 100, copolymers of dimethylaminoethyl methacrylate and acrylamide, copolymers of dimethyldiallylammonium chloride and acrylamide, commercially available under the tradenames Merquat 550 and Merquat S, copolymers of acrylic acid / dimethyldiallylammonium chloride / acrylamide available under the trade name Merquat 3330, and Merquat 3331 terpolymers of acrylic acid, methacrylamidopropyltrimethylammonium chloride and methacrylate commercially available under the tradename Merquat 2001, quaternized vinylpyrrolidone acrylate or methacrylate copolymers of ammonium alcohol commercially available under the commercial name Gafquat, for example polyquaternium 11, 23 and 28 - ^^^^^^^^^ g ^^^^^^^ K ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ and dimethylaminoethylmethacrylate- Gafquat 755N and quaternized copolymers of vinylpyrrolidone and dimethylaminoethylmethacrylamide-HS-100), vinylpyrrolidone / vinylimidazole metachloride copolymers available under the tradenames Luviquat FC370, polyquaternium 2, and polyalkyleneimines such as polyethylenimine and ethoxylated polyethylenimine. Also suitable for use herein are those cationic polymers commercially available under the trade name Aqualon N-Hance. The compositions of the invention may also contain from about 0.1% to about 20%, preferably from about 1% to about 15%, and more preferably from about 2% to about 10% by weight of an oil derivative of nonionic surfactant or mixture of oil derived from nonionic surfactants. The oil-derived nonionic surfactants are valuable in compositions according to the invention for the provision of skin feeling benefits in use and after use. The oil-derived nonionic surfactants suitable for use herein include water-soluble plants and emollients derived from animals such as triglycerides with an inserted polyethylene glycol chain.; mono and diglycerides ethoxylates, polyethoxylated lanolins and ethoxylated butter derivatives. A preferred class of oil-derived nonionic surfactants for use herein have the general formula (XII). t * & £ ^ j & & amp; ^^ & ^ j ^ &gj ^^ O RCOCH2CH (OH) CH2 (OCH2CH2) nOH where n is from about 5 to about 200, preferably from about 20 to about 100, more preferably from about 30 to about 85, and wherein R comprises an aliphatic radical having on average about 5 to 20 carbon atoms, preferably about 7 to 18 carbon atoms. Suitable ethoxylated fats and oils of this class include polyethylene glycol glyceryl cocoate derivatives, glyceryl caproate, glyceryl caprylate, glyceryl seboate, glyceryl palmate, glyceryl stearate, glyceryl laurate, glyceryl oleate, glyceryl ricinoleate, and glyceryl fatty esters derived from triglycerides, such as palm oil, almond oil and corn oil, preferably glyceryl sebamate and glyceryl cocoate. Suitable oil-derived nonionic surfactants of that class are available from Croda Inc. (New York, USA) under their line of Crovol materials, such as Crovol EP40 (PEG 20 glyceride from donkey grass), Crovol EP70 ( PEG 60 glyceride from the herb of the ass), Crovol A-40 (glyceride of PEG 20 of almond), Crovol A-70 (glyceride of PEG 60 of almond), Crovol M-40 (glyceride of PEG 20 of corn), Crovol M-70 (corn PEG 60 glyceride), Crovol PK-40 (palm kernel PEG 12 glyceride) and Crovol PK-70 (palm kernel PEG 45 glyceride) and under its range of Solan materials, such as Solan E, E50 and polyethoxylated lanolines X and Aqualose L-20 (lanolin PEG 24 alcohol) and Aqualose W15 (lanolin PEG 15 alcohol), available from Westbrook Lanolin. Other suitable surfactants of this class are commercially available from Sherex Chemical Co. (Dublin, Ohio, E.U.A) under their line of surfactants Varonic Ll and Rewo under their line of Rewoderm surfactants. These include, for example, Varonic Ll 48 (polyethylene glycol glyceryl seboate (n = 80), alternatively referred to as glyceryl seboate of PEG 80), Varonic Ll 2 (glyceryl seboate of PEG 28), Varonic Ll 420 (seboato glyceryl of PEG 200) and Varonic Ll 63 and 67 (glyceryl cocoates of PEG 30 and PEG 80), Rewoderm LI5-20 (palmitate of PEG-200), Rewoderm LIS-80 (palmitate of PEG-200 with glyceryl cocoate of PEG-7) and Rewoderm LIS-75 (PEG-200 palmitate with glyceryl cocoate of PEG-7), and mixtures thereof. Other emollients derived from oil suitable for use are the PEG derivatives of corn oil, avocado and babassu, as well as Softigen 767 (caprylic / capric glycerides of PEG 6). Also suitable for use herein are the nonionic surfactants derived from mixed vegetable fats extracted from the fruit of the Shea tree (Butirospermum karkii Kotschy), and derivatives thereof. This vegetable fat, known as Shea butter, is widely used in Central Africa for a variety of uses such as soap making and as a protective cream, and is marketed by Sederma (78610 Le Perray En Yvelines, France). Particularly suitable are the ethoxylated derivatives of Shea butter available from - -ataraasaafei .. »» », ... ....

Karishamn Chemical Co. (Columbus, Ohio, USA) under its range of Lipex chemical compounds, such as Lipex 102 E-75 and Lipex 102 E-3 (ethoxylated mono- and di-glycerides from Shea butter), and from Croda Inc (New York, USA) under its line of Crovol materials, such as Crovol SB-70 (mono- and di-glycerides ethoxylated Shea butter). Similarly, ethoxylated derivatives of mango butter, cocoa and illipe may be used in the compositions according to the present invention. Alth these are classified as non-ionic ethoxylated surfactants, it is understood that a certain proportion can remain as non-ethoxylated vegetable fat or oil. Other suitable nonionic surfactants derived from oil, include ethoxylated derivatives of almond oil, peanut oil, rice bran oil, wheat germ oil, linseed oil, jojoba oil, apricot kernel oil, nuts, palm nuts, pistachios, seeds sesame, rape seed, juniper oil, corn oil, peach bone oil, poppy seed oil, pine oil, castor oil, soybean oil, avocado oil, safflower oil, coconut oil , hazelnut oil, olive oil, grapeseed oil and sunflower seed oil. The highly preferred oil-derived nonionic surfactants to be used herein from the standpoint of optimum skin softness and touch characteristics are Lipex 102-3 (RTM) (ethoxylated derivatives of PEG-3 Shea Butter ) and Softigen 767 (RTM) (caprilic-capric glycerides of PEG-6). The compositions according to the present invention may also comprise lipophilic emulsifiers as active agents for skin care. Suitable lipophilic skin care agents include anionic-grade emulsifiers comprising a diacid mixed with a monoglyceride, such as succinylated monoglycerides, monostearyl citrate, glyceryl monostearate, diacetyl tartrate, and mixtures thereof. Optional Ingredients The compositions herein may additionally comprise a wide variety of optional ingredients. Non-limiting examples of said ingredients are described below. Another water-insoluble skin / hair care ingredient suitable for use in the foaming compositions herein is a liquid polyol carboxylic acid ester. The preferred polyol ester for use herein is a non-occlusive liquid or liquefiable polyol carboxylic acid ester. Said polyol esters are derived from a radical or portion of polyol and one or more radicals or portions of carboxylic acid. In other words, said esters contain a portion derived from a polyol and one or more portions derived from a carboxylic acid. Said carboxylic acid esters are also i-¿AA ^ ^^^ U | ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^ s ^^ ^. ^ may derive from a carboxylic acid. Said carboxylic acid esters can also be described as liquid polyol fatty acid esters, because the terms carboxylic acid and fatty acid are often used interchangeably by those skilled in the art. The preferred liquid polyol polyesters employed in this invention comprise certain polyols, especially sugars or sugar alcohols, esterified with at least four fatty acid groups. Accordingly, the polyol starting material must have at least 4 esterifiable hydroxyl groups. Examples of preferred polyols are sugars, including monosaccharides and disaccharides, and sugar alcohols. Examples of monosaccharides containing four hydroxyl groups are silose and arabinose and sugar alcohol derived from silose, which has five hydroxyl groups, for example, xylitol. The monosaccharide, erythrose, is not suitable in the practice of this invention since it only contains three hydroxyl groups, but the sugar alcohol derived from erythrose, for example, erythritol, contains four hydroxyl groups and can be used accordingly. The five suitable hydroxyl groups containing monosaccharides are galactose, fructose and sorbose. Sugar alcohols containing six OH groups derived from the products of hydrolysis of sucrose, as well as glucose and sorbose, for example, sorbitol, are also suitable. Examples of disaccharide polyols that can be used include maltose, lactose and sucrose, which contain eight hydroxyl groups.

The preferred polyols for preparing the polyesters for use in the present invention are selected from the group consisting of erythritol, xylitol, sorbitol, glucose and sucrose. Sucrose is especially preferred. The polyol starting material having at least four hydroxyl groups is esterified in at least four of the OH groups with a fatty acid containing from about 8 to about 22 carbon atoms.

Examples of such fatty acids include caprylic, capric, lauric, myristic, myristoleic, palmitic, palmitoleic, stearic, oleic, ricinoleic, linoleic, linolenic, eleostearic, archidic, arachidonic, behenic, and erucic. Fatty acids can be derived from fatty acids that occur naturally or synthetically. These can be saturated or unsaturated, including positional and geometric isomers. However, in order to provide preferred liquid polyesters for use herein, at least about 50% by weight of the fatty acid incorporated in the polyester molecule must be unsaturated. Oleic and linoleic acids and mixtures thereof are especially preferred. The polyol fatty acid polyesters useful in this invention should contain at least four fatty acid ester groups. It is not necessary that all of the hydroxyl groups of the polyol be esterified with fatty acid, but it is preferable that the polyester contains no more than two unesterified hydroxyl groups. More preferably, substantially all of the hydroxyl groups of the polyol are esterified with fatty acid, ie, the polyol portion is substantially completely esterified. The fatty acids esterified for the polyol molecule can be the same or mixed, but as noted above, a substantial amount of ester and unsaturated acid groups must be present to provide fluidity. To illustrate the above points, a sucrose acid triester may not be suitable for use herein because it does not contain the four fatty acid ester groups required. A sucrose fatty acid tetra ester of sucrose may be suitable, but is not preferred because it has more than two unesterified hydroxyl groups. A sucrose fatty acid ester of sucrose may be preferred because it has no more than two unesterified hydroxyl groups. Highly preferred compounds in which the hydroxyl groups are esterified with fatty acids include the liquid sucrose octa-substituted fatty acid esters. The following are non-limiting examples of specific polyol fatty acid polyesters containing at least four fatty acid ester groups suitable for use in the present invention: glucose tetraoleate, the glucose tetraesters of fatty acids of soybean oil (unsaturated), the tetraesters of fatty acid maffeinated soybean oil, the tetraesters of galactose of oleic acid, the tetraesters of arabinose of linoleic acid, tetralinoleate of xylose, pentaolethane of galactose, sorbitol tetraoleate, the sorbitol hexaesters of unsaturated soybean oil fatty acids, xylitol pentaoleate, sucrose tetraoleate, sucrose pentaolate, sucrose hexaoleate, sucrose heptaoleate, sucrose ochalate, and mixtures thereof.

As noted above, the highly preferred polyol fatty acid esters are those wherein the fatty acids contain from about 14 to about 18 carbon atoms. Preferred liquid polyol polyesters for use herein have full melting points below about 30 ° C, preferably below about 27.5 ° C, more preferably below about 25 ° C. The full melting points reported herein are measured by differential scanning calorimetry (DSC). Polyol fatty acid polyesters suitable for use herein can be prepared by a variety of methods well known to those skilled in the art. Such methods include: transesterification of the polyol with fatty acid esters of methyl, ethyl or glycerol using a variety of catalysts; acylation of the polyol with a fatty acid chloride; acylation of the polyol with a fatty acid anhydride; and acylation of the polyol with a fatty acid; per se. See patent of E.U.A. No. 2,831, 854; patent of E.U.A. No.4,005,196, to Jandecek, issued on January 25, 1977; U.S. Patent No. 4,005,196 to Jandacek, issued January 25, 1977. The present compositions may also comprise an auxiliary nonionic or anionic polymeric thickener component, especially water-soluble polymeric materials having a molecular weight of greater than about 20,000. By "water-soluble polymer" is meant that the material will form a substantially clear solution in water at a concentration of i ^ -siaa ^ ... JJ,. »^ --- ¿&< Fe, J ^ a 1% at 25 ° C, and the material will increase the viscosity of the water. Examples of water-soluble polymers that can be conveniently used as an additional thickener in the present compositions are hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, polyethylene glycol, polyacrylamide, polyacrylic acid, polyvinyl alcohol (examples include PVA 217 from Kurary Chemical Co., Japan) polyvinylpyrrolidone K- 120, dextrans, for example purified grade 2P crude dextran, available from D &O Chemicals, carboxymethylcellulose, plant exudates such as acacia, ghatti and tragacanth, and seaweed extracts such as sodium alginate, propylene glycol alginate and sodium carrageenan . Preferred as additional thickeners for the present compositions are natural polysaccharide materials. Examples of such materials are guar gum, locust bean gum and xanthan gum. Also suitable and preferred herein is hydroxyethyl cellulose having a molecular weight of about 700,000.

Hydrotrope The compositions according to the present invention may contain as an optional feature a hydrotrope. Suitable for use herein as hydrotropes, are those well known in the art, including sodium xylene sulfonate, ammonium xylene sulfonate, sodium cumenesulfonate, short chain alkylsulfate, and mixtures thereof. The hydrotrope may be present in the compositions according to the invention, at a level of from about 0.01% to about 5%, preferably from about 0.1% to about 4%, more preferably from about 0.5% to about of 3% by weight. The hydrotrope, as defined herein, means a material which, when added to a water-soluble surfactant system undiluted, can modify its viscosity and rheological profile. Besides the water-soluble oil described above, the compositions of the invention may also include a perfume or cosmetic oil or insoluble wax, or a mixture thereof at a level up to about 10%, preferably to about 3% by weight, characterized also because the oil or wax is insoluble in the sense of being insoluble in the product matrix at a temperature of 25 ° C. Waxes and insoluble cosmetic oils suitable for use in the present, may be selected from water-soluble silicones including non-volatile polyalkyl and polyarylsiloxane gums and fluids, volatile cyclic polydimethylsiloxanes, polyalkoxylated silicones, modified amino and quaternary ammonium silicones, reinforced and reinforced rigid silicones, and mixtures thereof, esters of d- C24 of C8-C30 fatty acids such as isopropyl myristate, myristyl myristate and acetyl ricinoleate, C8-C3o esters of benzoic acid, beeswax, saturated and unsaturated fatty alcohols such as behenyl alcohol, hydrocarbons such as mineral oils, petrolatum, squalene and squalane, sorbitan fatty esters (see US-A-3988255, Seiden, issued October 26, 1976), lanolin and oil-like lanolin derivatives, triglycerides of animal and plant origin such as oil almond, peanut oil, wheat germ oil, rice bran oil, linseed oil, oil jojoba, apricot kernel oil, walnuts, palm nuts, pistachios, sesame seeds, rapeseed oil, juniper oil, corn oil, peach-kernel oil, poppy seed oil, pine oil, oil castor oil, soybean oil, avocado oil, safflower oil, coconut oil, hazelnut oil, olive oil, grape seed oil and sunflower seed oil, and C? -C24 esters of dimeric acids and trimerics such as diisopropyldimerate, diisostearyl malate, diisostearyldimerate and triisostearyltrimetrate. The viscosity of the final composition (Brookfield DV II, with Cone CP41 or CP52, 25 ° C, pure) is preferably at least about 500 cps, more preferably from about 1,000, to about 50,000 cps, especially of around 1, 000 to around 30,000 cps, more especially from around 1, 000 to around 15,000 cps. Cleaning compositions may optionally include other skin or hair moisturizers which are soluble in the matrix of the cleaning composition. The preferred level of said humectants is from about 0.5% to about 20% by weight. In preferred embodiments, the humectant is selected from essential amino acid compounds that occur naturally in the skin stratum corneum and water-soluble non-poloidal occlusives, and mixtures thereof. Some examples of the most preferred non-occlusive humectants are squalene, sodium pyrrolidinecarboxylic acid, D-panthenol, lactic acid, L-proline, guanidine, pyrrolidone, hydrolyzed protein and other proteins derived from collagen, Aloe vera gel, acetamide MEA and lactamide. MEA, and mixtures thereof. The compositions herein may also include one or more suspending agents. Suitable suspending agents for use herein include any of a number of long chain acyl derivative materials or mixtures of said materials. Included are ethylene glycol esters of fatty acids having from about 16 to about 22 carbon atoms. Preferred are ethylene glycol stearates, ie ethylene glycol monostearate and distearate, but particularly distearate containing less than about 7% monostearate. Other suspending agents that are found to be useful are the fatty acid alkanolamides having from about 16 to about 22 carbon atoms, preferably from about 16 to 18 carbon atoms. Preferred alkanolamides are stearic monoethanolamide, stearic diethanolamide, stearic monoisopropanolamide and stearic stearate of monoethanolamide. Still other suitable suspending agents are the Ci6-C22 alkyldimethylamine oxides, such as dimethylamino stearyl oxide and trihydroxystearin commercially available under the tradename Thixcin (RTM) from Rheox. The suspending agent is preferably present at a level of about 0.5% to about 5%, preferably from about 0.5% to about 3%. The suspension agents serve to facilitate the suspension of the water-soluble oil, and can give a pearly appearance to the product. Mixtures of suspending agents are also suitable for use in the compositions of this invention. The compositions according to the present invention can also include an opacifying or pearlescent agent. Such materials can be included at a level of from about 0.01% to about 5%, preferably from about 0.2% to about 1.3% by weight. Opacifying / pearlizing agents suitable for inclusion in the compositions of the present invention include: titanium, Ti02; EUPERLAN 810 (RTM); TEGO-PEARL (RTM); long chain C6- C22 acyl derivatives such as glycol esters or fatty acid polyethylene glycol having from about 16 to about 22 carbon atoms and up to 7 ethyleneoxy units; fatty acid alkanolamides that have from about 16 to about 22 carbon atoms, from preferably about 16 to 18 carbon atoms such as stearic monoethanolamide, stearic diethanolamide, stearic monoisopropanolamide and stearic monoethanolamide and C? 6-22 alkyldimethylamine oxides, such as dimethylamine stearyl oxide.

In preferred compositions, the opacifying / pearling agent is present in the form of crystals. In highly preferred compositions, the pearling / opacifying agent is a dispersion of polystyrene into particles having a particle size of about 0.05 microns to about 0.45 microns, preferably about 0.17 microns to about 0.3 microns, said dispersions being preferred from the point of view of providing optimal rheology and shear thinning behavior. Highly preferred are the styrene acrylate copolymer and OPACIFIER 680 (RTM), commercially available from Morton International. Various additional optional materials may be added to the cleaning compositions, each at a level of from about 0.1% to about 2% by weight. Such materials include proteins and polypeptides, and derivatives thereof; water-soluble or solubilizable preservatives such as hydantoin DMDM, Germall 115, methyl, ethyl, propyl and butyl hydroxybenzoic acid esters, EDTA, Euxyl (RTM) K400, natural preservatives such as benzyl alcohol, potassium sorbate and bisabolol; sodium benzoate and 2-phenoxyethanol; other wetting agents such as hyaluronic acid, chitin and sodium polyacrylates grafted with starch, such as Sanwet (RTM) IM-1000, IM-1500 and IM-2500, available from Celanese Superabsorbent Materials, Portsmith, VA, USA and described in US-A-4,076,663; solvents; suitable antibacterial agents such as Oxeco (phenoxy isopropanol), Trichlorocarbanilide (TCC) and Triclosan; , "If low temperature phase modifiers, such as ammonium ion sources (eg, NH Cl); viscosity control agents, such as magnesium sulfate and other electrolytes; coloring agents; Ti02 and Ti02 coated mica; perfumes; and perfume solubilizers, and zeolites such as Valfour BV400 and derivatives thereof, and Ca2 + / Mg2 + sequestrants such as polycarboxylates, amino polycarboxylates, polyphosphonates, amino polyphosphonates, EDTA etc., water softening agents, such as sodium citrate and insoluble particles such as zinc stearate and fuming silica.Water is also present at a level preferably of from about 20% to about 99.89%, preferably from about 40% to about 90%, more preferably at least about 75 % by weight of the compositions herein The pH of the compositions is preferably from about 3 to about 10, more preferably from about 5 to about 9. , especially from about 5 to about 8, and most preferably from about 5 to 7. The compositions of the present invention can be used in a variety of skin and hair care applications, such as bath gels, body washes, hair shampoos, and the like. The compositions of the present invention may be applied by hand or preferably with a personal cleansing implement such as a tassel. Personal cleaning implements suitable for use with the compositions of the present invention, include those described in the following patent documents, which are incorporated herein by reference: US-A-5, 144,744 to Campagnoli, issued September 8, 1992, US-A- 3,343,196 to Barnhouse, WO95 / 26671 to The Procter & Gamble Company, WO95 / 00116 to The Procter & Gamble Company and WO95 / 26670 to The Procter & Gamble Company. The compositions according to the present invention are illustrated by the following non-limiting examples. 0 s £ Ít¡k¿S? $ é 1. - Supplied by Hoechst 2.- Supplied by Albringht & Wilson 3.- Supplied by Hampshire Chemicals 4.- Supplied by Rheox 5.- Supplied by Shell Chemicals 6.- The water insoluble oil in each of the examples I-IX can be Indopol 40 and Indopol 100 supplied by Amoco Chemicals, Puresyn 100 supplied by Mobil Chemical Co., Permethyl 104A supplied by Presperse, SF1632, octilmeticona or decilmeticona supplied by GE Silicones 7. Supplied by GE Silicones Manufacturing Method The compositions can be prepared first by the manufacture of a premix of surfactants and a suspending agent. Said premix should contain no more than 15% by weight of the total composition of surfactant. The above is done by the combination of surfactants (except sarcosinate), a portion of the water conservatives, powder and the pH adjuster with gentle agitation. This mixture is then heated to about 90 ° C during which time the fatty alcohol / fatty acid, the suspending agent and the chloride of sodium are added with agitation. The mixture is maintained at high temperatures for 5 minutes to one hour before cooling at a controlled rate of about 30 to 40 ° C during a heat exchanger causing the suspending agent to crystallize. The remaining water is then added to said premix followed by the water-soluble oil, remaining surfactant, liquid preservatives and perfume. Said part of the process is done at room temperature using gentle stirring to produce the desired drop size of 5 to 20 microns. 20 The products provide excellent rinsing feel and softness benefits along with excellent rheological attributes in storage, supply and use, in combination with benefits ^^^^^^^^^^^^^^^^ IEH ^^ ^? Th ^^^^^^^^^^^^ effective g including skin conditioning, skin moisturizing, good or Product stability, cleaning and foaming.

Rinsing sensing panel test In order to measure the effect of water-soluble oils on the rinsing sensation of the compositions of the invention, a rinsing sensing panel test was carried out as described below. The test involves a panel of 8 expert people who have been specially trained and qualified to carry out the rinsing sensing panel test.

Instruments The necessary instruments for this test are the following: stopwatch, 2 ml syringes, thermometer, evaluation sheet (2 per panelist), two 20 L plastic containers with lids, a wash basin with two draining table areas and access to a water hardness system for several hardnesses, the water having a flow rate of 1600-1800 ml / 30 seconds. (The temperature and hardness of the water should be checked and recorded).

Panelists training Each panelist is trained to recognize three different wet skin sensations-degrees 0, 4 and 8 described below.

Grade 0 (extremely slippery) Ivory bar soap (RTM) is used for grade C. The water hardness is 16 gpg, and the water temperature is 36 ± 1 ° C. The inner forearm and both hands are moistened for 5 seconds. The soap bar will foam in one hand for 6 seconds using your fingers to make rotate the bar in the palm of the hand using a full bar rotation per count. The resulting foam is applied to the inner forearm with 10 rubs in 10 seconds (1 rubbing = wrist to elbow to wrist) using moderate pressure. The foam is left on the forearm for 30 seconds and the product is rinsed from the hands. The forearm is rinsed under water flow for 30 seconds with the water flow starting at the elbow. After 30 seconds the arm is struck once from the elbow towards the wrist using light pressure ensuring that this is completed later where the water starts its flow. The rinsing sensation experienced represents grade 0.

Grade 4 (slightly slippery and slightly slippery) Zest White Water Fresh (RTM) detergent bar soap (commercially available in the United States) is used for grade 4. The hardness of the water is 16 gpg, and the Water temperature is 36 ± 1 ° C. The inner forearm and both hands are moistened for 5 seconds. The bar soap is frothed on the hands for 6 seconds using a full bar rotation per count. The resulting foam is applied to the inner forearm with 10 rubs in 10 seconds (1 rubbing = wrist to elbow to wrist) using moderate pressure. The foam is left on the forearm for 30 seconds and the product is rinsed from the hands. The forearm is rinsed under water flow for 10 seconds with the flow of water starting at the elbow. After 10 seconds the arm is struck once from the elbow towards the wrist using light pressure ensuring that the above is completed later where the water flow starts. The rinsing sensation experienced represents grade 4.

Grade 8 (extremely slippery) An Olay Wetting Body Wash Oil (RTM) (commercially available in the United States) is used for grade 8. The hardness of water is 3 gpg, and the water temperature is 36 ± 1 ° C. The inner forearm and both hands are moistened for 5 seconds. 1.7 ml of the product is applied to damp hands. The product is frothed on the hands by rubbing the palms in a circular motion with six rotations in 6 seconds using a complete rotation by counting. The resulting foam is applied to the inner forearm with ten rubs in 10 seconds (1 rubbing = wrist to elbow to wrist) using moderate pressure. The foam is left on the forearm for 30 seconds and the product is rinsed from the hands. The forearm is rinsed under water flow and immediately after the arm is struck once from the shoulder towards the wrist using light pressure, ensuring that this is completed later where the water flow starts. The experienced rinsing sensation represents grade 8.

Panelists qualification In order to qualify the sensation panel test, the panelists must carry out the following qualification test successfully. The inner forearm and both hands are moistened for 5 seconds. 1.7 ml of each product to be graded is applied to damp hands and foam by rubbing the palms in a circular motion with 6 rotations in 6 seconds (one full rotation per count). The foam is applied to the inner forearm with 10 rubs in 10 seconds (one rubbing the same wrist to elbow to wrist) using moderate pressure. The foam is left on the forearm for 30 seconds. The product is rinsed from the hands. The forearm is rinsed under water flow for 15 seconds with the flow of water starting at the elbow. During this time, the wet skin sensation will be evaluated in the following periods: 3 seconds, 9 seconds and 15 seconds. This is done by hitting the inner forearm from the elbow to the wrist three times using light pressure and starting where the water flow starts. The rinse stops after 15 seconds and each evaluation of wet skin sensation is marked on the following evaluation sheet: Extremely Highly non slippery Lightly Slightly Slightly slippery Highly Extremely 5 non slippery no slippery no slippery no slippery slipper slippery slippery rubbing 0 1 2 3 4 5 6 7 8 Each panelist evaluates two sets of samples with results from known qualified panelists. Each product will be evaluated twice to confirm its accuracy. If the panelist does not rate the products in a correct twice in a row, you have to reevaluate it until you achieve it. However, if after four attempts per product still fail to qualify correctly, they must return to training (section I). When the grade is incorrect, they can not be informed of the expected grades, they can only be told if they are not very slippery or too slippery. Each panelist must have at least 3 hours between tests of each series of products. All results must be within ± 1 degree of the results of the qualified panelists (see table below). Once that the panelists have successfully qualified each product twice in a row, they are considered qualified. ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^ fffg ^^^^^ Products Series 1: LUX shower bath cream for normal to dry skin (Taiwan) against washing of the Taiwan Olay wetting body. Series 2: Washing of the Taiwan Olay moistening body against washing of the EUA Olay moistening body.

Qualifying product grades for hard water (16 gpg) Qualifying products for mild water (3 gpg) 15 Series 1: Safeguard body wash (China) against natural moisture BIORE (Japan) Series 2: LUX shower cream for normal to dry skin (Taiwan) against body wash for wetting USA Olay ^^^ ÜJj Grades of water hardness rating product of 3 gpg Test evaluation Two arm washes can be carried out at any time, one on each arm. Each panelist can evaluate more than one series of test samples per day, but with an interval of 3 hours between each series.

Moisturizers can not be applied to the forearms before or during the test period. It always starts in the left arm. The inner forearm and both hands are moistened for 5 seconds. 1.7 ml of the product to be evaluated is applied to wet hands. By using moderate pressure, the product foams on the hands with 6 rotations in 6 seconds (one full rotation per second). The foam is applied to the inner forearm (from the wrist to the elbow to the wrist) for 10 seconds using moderate pressure. The foam is left on the forearm for 30 seconds. The product is rinsed from the hands. The forearm is rinsed under water flow for 15 seconds with the water reflux starting at the elbow. During this time, the wet skin sensation is evaluated in the following periods: 3 seconds, 9 seconds and 15 seconds. This is done by striking the inner forearm from the elbow to the wrist three times using light pressure and starting where 5 the water flows in the arm. The rinse stops after 15 seconds and each evaluation of wet skin sensation is marked on the evaluation sheet.

Experimental design 10 A randomized incomplete block design should be used to compare eight products using eight subjects and two treatment sites per subject.

Calculations 15 A statistical package capable of carrying out the variation analysis (for example, Stargraphics Plus version 2.1) should be used. The analysis must be carried out at 90% of the level of significance, using the evaluation period as variable and dependent product, the panelist and the site as factors. 20 For the eight subjects, this design has 80% energy to show differences of 0.71% to 90% of meaning.

Rinsing sensing panel test results Various compositions according to the present invention were tested using a rinse sensing panel test detailed above. In addition, several comparative compositions were also tested. The formulations of each product and rinsing values are shown below. The test products I-IX are compositions according to the present invention. ^ .-. ^ ... ^^ ... ^ * é »^, a ^ - ^^^ * - ~ * **» tá? ^ ~. " * ^ '- * - j u & ^ * & S * ^ ~ »- * - * < ? * 'Mt ** fcA The following products were also tested for comparison: For all the previous results, the SEM was 0.25 to 0.27. 1. Supplied by Albright & Wilson 2. Supplied by Hampshire Chemicals 15 3. Supplied by Saci 4. Supplied by Mobil Chemical Co. 5. Supplied by Amoco Chemical Co. 6. Supplied by GE Silicones 7. Supplied by Presperse Inc. 20 8 Supplied by Shell Chemicals 9. Supplied by Amercol. ^^ ¡i »ító ^^^« 3¡ tó? I ¡l ^

Claims (24)

NOVELTY OF THE INVENTION CLAIMS

1. A liquid personal rinse cleaning composition comprising surfactant, water and a water-insoluble oil, wherein the water-insoluble oil provides an average rinse feel value for the composition of 3.5 or less as measured by the Rinse sensation panel test.

2. The personal cleansing composition according to claim 1, further characterized in that the composition has an average rinse sensation value of 3.5 or less.

3. The personal cleansing composition according to claim 1 or 2, further characterized in that the composition has an average rinse sensation value of 3.0 or less.

4. A personal cleansing composition according to any of claims 1 to 3, further characterized in that it comprises from about 0.5% to about 20%, preferably from about 1 to about 10% by weight of insoluble oil in water

5. The personal cleansing composition according to any of claims 1 to 4, further characterized in that the oil insoluble in water has a stickiness index of 120% to Viscasil ..A - ^^ a ^ fa «M« a; A & . > .. ^ a .. ,, - ^, »» ^^. • - - - «« ~~~ 5M (Dimethicone) or less as measured by the sticky technical test method

6. The personal cleaning composition according to any of claims 1 to 5 , characterized also because the 5 Water-insoluble oil has a tack index of 110% at Viscasil 5M (Dimethicone) or less as measured by the stickiness test method.

7. The personal cleansing composition according to any of claims 1 to 6, further characterized in that the 10 water-insoluble oil has a 100% tack index to Viscasil 5M (Dimethicone) or less as measured by the stickiness test method.

8. The personal cleansing composition according to any of claims 1 to 7, further characterized in that the water insoluble oil is selected from hydrocarbon oils and hydrophobically modified silicones, and mixtures thereof.

9. The personal cleansing composition according to claim 8, further characterized in that the hydrocarbon oils are selected from highly branched polyolefins of type (a) having the following formula: R2 R 3 wherein R1 is H or CrC2o alkyl, R4 is CrC20 alkyl, R2 is H or C20, and R3 is C -C2o, n is an integer from 0 to 3 and m is an integer from about 1 to 1000 and has a number average molecular weight of around 1000 to about 25,000.

10. The personal cleansing composition according to claim 9, further characterized in that the polyalphaolefin of type (a) has a number average molecular weight of from about 2000 to about 6000, most preferably from about 2500 to about 4000

11. The personal cleansing composition according to claim 9 or 10, further characterized in that the polyalphaolefin of type (a) has a viscosity of about 300 cst to about 50,000 cst, preferably of about 1000 cst. at about 12,000 cst, more preferably from about 1000 cst to about 4000 cst at 40 ° C 15 (ASTDM D-445).

12. The personal cleansing composition according to claim 8, further characterized in that the hydrocarbon oils are selected from pear-alkenyl materials of type (b) having the following formula: R2 R1-. { - (_C- { CH2) n) m- R4 R 3 wherein R1 is H or C? -C4 alkyl, R4 is C? -C alkyl, R2 is H or C? -C alkyl or C2-C alkenyl, and R3 is H or C-C alkyl or C2-C alkenyl, n is an integer of about 0 to 3 and m is an integer of about 1 to 1000 and has a number-average molecular weight of about 600 to about 5, preferably from about 750 to about 1000, especially from about 800 to about 1000.

13. The personal cleansing composition according to claim 12, further characterized in that the peralkenyl materials of type (b) have a viscosity on the scale of about 500 cst to 10 about 50,000 cst, preferably from about 1000 cst to about 10,000 cst which was measured at 40 ° C using the ASTM method D-445 to measure the viscosity.

14. The personal cleansing composition according to claim 13, further characterized in that the peralkenyl material of type (b) is a polybutene or polyisobutene.

15. The personal cleansing composition according to claim 8, further characterized in that the hydrophobically modified silicone is selected from silicones having the formula: wherein R is C 1 -C 4 alkyl or phenyl, R 'is C 1 -C 20 alkyl or phenyl, z is 5 to 21, and x has an average scale number of about 20 to 400, and has a number of average value on the scale of around 0 to about 10 and x + and are in the range of 30 to 400. 5

16. The personal cleansing composition according to claim 15, further characterized by the hydrophobically modified silicone it is selected from C 16 -C 18 alkylmethionone, octylmethone and decylmethone, and mixtures thereof.

17.- The personal cleaning composition in accordance with Any of claims 1 to 16, further comprising about 1 to about 60% by weight of water-soluble surfactant selected from the anionic, nonionic, zwitterionic surfactant and amphoteric surfactants and mixtures thereof.

18.- The personal cleaning composition in accordance with the 15 claim 17, further characterized in that the water-soluble anionic surfactant is selected from alkyl sulphates, ethoxylated alkyl sulfates, alkyl glyceryl ether sulphonates, alkyl ethoxy glyceryl ethers, acylmethyltaurates, fatty acylglycinates, alkylethyloxycarboxylates, N-acylglutamates, acyl isethionates, alkyl sulfosuccinates, Alkylethoxysulfosuccinates, alpha-sulfonated fatty acids, their salts and / or esters, alkyl phosphate esters, ethoxylated alkyl phosphate esters, acyl sarcosinates and fatty acid / protein condensates, acylapartates, alkoxy acyl amide carboxylates, alkanolamide sulfocycinates, (ethoxylates), ßfcs? Ü¡ & ethoxylated alkyl citrate sulfocycinates, ethylenediamine triacetates, acylhydroxyethyl isethionates, acylamide alkoxysulfates, linear alkylbenzenesulfonates, paraffinsulfonates, alkylalkoxy sulfates, and mixtures thereof.

19. The personal cleansing composition according to claim 17 or 18, further characterized in that the water-soluble anionic surfactant is ethoxylated alkyl sulfate.

20. The personal cleansing composition according to any of claims 1 to 19, further characterized in that the composition is substantially soap-free.

21. The personal cleansing composition according to claim 17, further characterized in that the water-soluble amphoteric surfactant is selected from ammonium derivatives of formula [V]: R? CON (CH2) 2NCH2C02M 15 R3 R2 wherein Ri is alkyl of C5-C22, or alkenyl, R2 is CH2CH2 OH or CH2C02M, M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium and R3 is CH2CH2OH or H.

22. The personal cleansing composition according to claim 17 , further characterized in that the zwitterionic surfactant is selected from alkylbetaines of the formula R5R6R7N + (CH2) nC02M and amidobetaines of formula (IX): Afc,. «^ - .. ^ - a - A» ... .., ^,. > . . ^^^. -Z & ¿¿^ .-. .,. ., _ ,. .. ^? ^^. ^^ ÁM ^^^ ,. Re R5CON (CH2) mN (CH2) nC02M R7 wherein R5 is C5-C22 alkyl or alkenyl, Re and R7 are independently CrC3 alkyl, M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium, and n, m are each numbers from about 1 to 4.

23. The composition according to any of claims 1 to 22, further characterized in that it comprises from about 0.01% to about 5% by weight of cationic polymeric skin conditioning agent. selected from cationic guar gums, cationic polysaccharides, cationic homopolymers and copolymers derived from acrylic and / or methacrylic acid, cationic cellulose resins, quaternized hydroxyethylcellulose ethers, cationic copolymers of dimeldiallylammonium chloride and acrylamide and / or acrylic acid, cationic chloride homopolymers of dimethyldiallylammonium, copolymers of dimethylaminoethylmethacrylate and acrylamide, copolymers of acrylic acid / dimethyldialammonium chloride / a crilamide, quaternized vinylpyrrolidone acrylate or methacrylate copolymers of amino alcohol, quaternized copolymers of vinylpyrrolidone and dimethylaminoethylmethacrylamide, copolymers of vinylpyrrolidone / vinylimidazole metachloride and polyalkylene and ethoxypolyalkylene imines, quaternized silicones, acrylic acid terpolymers of methacrylamido propyl trimethyl ammonium chloride and methylacrylate, and mixtures thereof.

24. - The personal cleansing composition according to any of claims 1 to 23, further characterized in that the water-soluble oil has an average particle diameter number of about 1 miera about 500 microns, preferably from about 5 microns to about 200 microns, especially from around 5 microns to around 50 microns. - * "tlBrfrT1itV ÍÍ-ÍÍlfA- 1 APPENDIX SHEET SUMMARY OF THE INVENTION A personal rinse-off composition comprising surfactant, water and a water-insoluble oil wherein the water-insoluble oil provides an average rinse feel value for the composition of 3.5 or less as measured by the panel test of rinsing sensation; the personal cleansing compositions of the invention provide excellent rinsing and skin softness. P00 / 194F