MXPA99008974A - Ampholyte polymers for use in personal care products - Google Patents

Abstract

Novel conditioning polymers containing (meth)acrylamidopropyltrimethyl ammonium chloride, meth(acrylic acid) or 2-(meth)acrylamido-2-methylpropane sulfonic acid and, optionally, a C1-C22 alkyl(meth)acrylate and the use thereof in a cosmetically acceptable medium for the treatment of a keratin-containing substrate are disclosed.

Description

AMPHOLITE POLYMERS FOR USE IN PERSONAL CARE PRODUCTS DESCRIPTION OF THE INVENTION The present invention relates to novel ampholyte polymers, polymer compositions and methods for using such polymers and compositions in personal care applications. In general terms, it is believed that the polymer and polymer compositions of the present invention are useful in the treatment of keratin-containing substrates. Keratin substrates include, but are not limited to, hair, skin, and animal and human nails. More particularly, the momentary invention relates to polymer compositions and methods for treating keratin in which a cosmetically acceptable medium containing at least about 0.01% by weight of an amfolite polymer comprising acrylamidopropyltrimethyl ammonium chloride or ammonium methacrylamidopropyltrimethyl chloride; acrylic acid, methacrylic acid, 2-acrylamido-2-methylpropanol sulfonic acid or 2-methacrylamido-2-methylpropane sulfonic acid; and, optionally, an alkyl methacrylate. Preferably, the cosmetically acceptable medium is a hair care product such as a shampoo, conditioner, styling or rinse product, or a skin care product such as a cleanser, lotion or cream. The surface properties of keratin are of interest in cosmetic science, and there has been a long-lasting desire to discover ingredients that beneficially affect the condition of volume and topicality of keratinous substrates, such as hair. For example, such ingredients must have adequate adherent properties, so that they not only initially absorb, but they must also retain on exposure to water. This property is called "substantivity", that is, the ability of a material to be absorbed into the keratin and to resist removal by rinsing with water. The hair is composed of keratin, a fibrous protein that contains sulfur. The isoelectric point of keratin, and more specifically of hair, is generally in the pH range of 3.2 - 4.0. Therefore, at the pH of a typical shampoo, the hair carries a net negative charge. Accordingly, cationic polymers have long been used as conditioners in shampoo formulations, or as a separate treatment for improving moisture and hair drying. The substantivity of the cationic polymers for the long hair negatively charged with the film formation facilitates untangling during combing the wet hair and a reduction in static light flight during the combing of the dry hair. Cationic polymers generally also give softness and flexibility to hair. When cationic polymers are added to shampoos (or for skin care products such as cleansing compositions) containing anionic surfactants, the formation of highly active surface association complexes, which imparts improved foam stability to the shampoo, generally takes place. The maximum surface activity and foam stability, or lathering, is achieved in close stoichiometric ratios of anionic surfactant: the cationic polymer, where the complex is less than soluble water. Generally, cationic conditioners show a bit of incompatibility in these relationships. The compatibility gives a clear formulation more commercially desirable, while the incompatibility leads to a fog or precipitation that are aesthetically less desirable in some formulations. It is believed that hair curing properties such as curl retention to be directly related to the film forming properties of cationic polymers, as well as molecular weight, with performance generally increased with increasing molecular weight. However, the fijative properties attributed by cationic polymers generally tend to have a reciprocal relationship to other conditioning properties, i.e., good curl retention usually means that properties such as moisture compatibility will be lacking, and vice versa. Surprisingly, it has been found that instant amfolite polymers comprise: a) acrylamidopropyltrimethyl ammonium chloride (APTAC) or methacrylamidopropyltrimethyl ammonium chloride (MAPTAC); b) acrylic acid (AA) _, methacrylic acid (MAA), 2-crilamido-2-methylpropane sulfonic acid (AMPSA) or 2-methacrylamido-2-methylpropane sulfonic acid (MAMPSA); and c) optionally, a linear or branched C 1 -C 22 alkylacrylate or methacrylate; they are generally useful in cosmetic formulations and provide particularly improved conditioning properties for hair products. Apart from the improved conditioner, as measured by the ability to comb, substantiability, light flight and / or feel, these polymers can improve at the same time, but are generally not detrimental to hair setting properties such as curl retention. In a preferred embodiment of the present invention, an effective amount of an ampholyte polymer containing AA, MAPTAC and portions of methylacrylate are added to a skin or hair care product containing anionic surfactant, preferably a care product. of the hair. Thus, the polymer compositions of the present invention can be used in, among other things, shampoos, conditioners, rinses, dyes, bleaching products, fixation lotions, modeling lotions, restructuring lotions, perms and aligners. Apart from the uses of hair care, skin and nail conditioner products are desired that work to improve properties such as moisture retention, skin softening, air humidity attraction, water loss delay, sensation and reduction of skin irritations caused by contact with cosmetic ingredients. Examples of such products include detergents, lotions and soaps. Generally, two broad areas of skin care products have been recognized that have been recognized as skin conditioners: emollients and humectants. Emollients generally provide improved moisture retention in the skin and plasticization / softness of the skin. Common commercial emollients are mineral oils; petrolatum; aliphatic alcohols, such as ryl alcohol; lanolj-na and its derivatives; glycol rate; and fatty acids, such as triethanolamine oleate. Moisturizers generally attract moisture, evaporation of water retardation from the surface of the skin, and plasticising / soft skin. Common commercial moisturizers include glycerin, propylene glycol sorbitol, and polyethylene glycols. The desirable conditioner for the skin should give some of the attributes of an emollient or a humectant, as well as provide improved lubricity and skin feel after treatment and / or reduce skin irritation caused by other components in the conditioner such as , for example, soaps, detergents, foam propellants, surfactants, and perfumes. It is known to those skilled in the art that cationic polymers can be employed as conditioners for the skin and nail. At times, it is also desirable that the ingredients of the skin and nail care products have adequate adherent properties, so they not only initially absorb, but are also retained on exposure to water. This property, as in applications for hair care, refer to "substantivity", that is, the ability of a material connected to the keratin of the skin or nails to resist removal by rinsing with water. Generally, pH 's typical of conditions of use, skin and nails carry a negative net charge. Accordingly, cationic polymers have long been used as conditioners in formulations for skin and nail care. The substantivity of the cationic polymers for the skin and negatively charged nails direct the formation of film that facilitates lubricity, hydration and sensation. Two commercially used cationic polymers are_Merquat® 550 (Commercially available from Calgon Corporation), a copolymer of acrylamide and dimethyldiallylammonium chloride, and Polimer JR® (Commercially available by Union Carbide), a hydroxyethyl cellulose containing quaternary nitrogen. The conditioning properties for the skin and nails of lubricity, hydration and sensation are related to the film-forming properties of the cationic monomers, as well as to the molecular weight, with the performance generally increased with the increase in molecular weight. It is believed that the improvements of the conditioning effects of the instant polymers and the polymer and polymer compositions are applicable to the skin and nail care products. In addition, it will be appreciated that brittle or brittle nails can be strengthened or hardened, and the appearance of improved nails, as a result of the use of instant amfolite polymers. Keratin additive conditioners are generally of three primary types: cationic polymers, protein or protein derivatives, and fatty quaternary ammonium compounds. The cationic polymers normally used include: hydroxyethyl cellulosic compounds containing quaternary nitrogen, copolymers of vinylpyrrolidone and dimethylamino-ethylmethacrylate, and amino functional polydimethylsiloxane. Hydrolyzed animal protein has often been used as a keratin conditioner. Also used are natural products such as collagen and casein. Suitable quaternary ammonium compounds include such products as stearyl dimethyl ammonium chloride. Conditioner additives comprising copolymers of dimethyldiallylammonium chloride and other monomers are well known; see, for example, EP 308189 (with acrylamide) and EP 0 308 190 and U.S. 4, 803, 071 (with hydroxyethyl cellulose). The use of such polymers in cosmetics is also described in Sykes et al., Drug Cosmet. Ind., 126 (2), 62, 64, 66, 68, 136 (1980). Amphoteric betaines have also been employed in cosmetic compositions; see GB 2,113,245 which discloses the use of betainized dialkylaminoalkyl (meth) acrylate together with a cationic polymer. The use of dimethyldiallylammonium chloride polymers (DMDAAC) in the treatment of keratin is also known. See, for example, US 4,175,572 and 3,986,825. U.S. 5,296,218 discloses ampholyte terpolymers based on DMDAAC containing acrylamide for hair care applications, while U.S. 5,275,809 discloses ampholyte terpolymers based on DMDAAC containing acrylamidomethylpropyl sulfonic acid for hair care applications. While the use of various combinations of cationic, anionic and / or nonionic polymers as additives for hair, skin and nail conditioning compositions that have been suggested thus far, there has been no appreciation that a significant improvement in the conditioning properties could be obtained using an amfolite polymer of the type described herein. For example, U.S. 4,859,458 discloses hair conditioning polymers containing alkoxylated sulfonic acid salts of nitrogen which may also include additional monomers which may be neutral, anionic and / or cationic. While these include acrylamide, acrylic acid and dimethyldiallylammonium chloride, there is no suggestion of the amfolite polymers of the present invention. EP 0 353 987 discloses polymers for personal care products capable of rinsing in water including conditioning shampoos, than a cationic monomer including dimethyldiallylammonium chloride, a monomer carrying a pending AnR group where n is O or a positive integer, A is ethyleneoxy and R is a hydrocarbyl group of 8 to 30 carbon atoms, and optionally a nonionic and / or anionic monomer. However, there is no suggestion of the ampholyte terpolymers of the present invention. US No. 4,710,374 discloses compositions suitable for treating hair comprising a cationic polymer including the poly (dimethyldiallylammonium) chloride, and an anionic latex, but there is no suggestion of the ampholyte terpolymers of the present invention. US No. 4,842,849 describes compositions suitable for treating keratin comprising at least one cationic polymer including poly (dimethyldiallylammonium chloride), and at least one anionic polymer containing vinylsulfonic groups, "optionally copolymerized with, acrylamide." The cationic polymer can be a polymer amfoteric as defined, but none of these combinations suggests the ampholyte terpolymers of the present invention EP 0 080 976 describes aqueous hair cosmetic compositions containing a surface of quaternary ammonium salt based on active polymeric acrylic, a salt of monomeric or oligomeric ammonium, and an active, anionic or zwitterionic nonionic surface The amfolite polymers of the present invention are not suggested DE 4401 708 A1 describes the use of the molecular weight of acrylic acid polymers / MAPTAC in the applications Cosmetics, high molecular weight polymers (es d ecir, greater than 100,000) of the momentary invention are not described or suggested. US 4,128,631 discloses a method of lubricity imparted to keratinous substrates such as skin or hair by contacting substrates with a salt of 2-acrylamido-2-methylpropane sulfonic acid (AMPSA) having a molecular weight of 1-5 million. See also US 4,065,422. The ampholyte polymers of the present invention and their unexpected advantageous properties are not suggested. The amfolite polymers of the present invention and compositions containing such polymers are novel because of their unique structure, molecular weight, conditioning properties, and its general advancement of the state of the keratin conditioning technique. The polymers of the present invention offer conditioning properties which are a surprising improvement over those possessed by the keratin conditioning additives in the prior art described above. Thus, the properties for hair care have been improved, such as unraveling, wet compatibility, moisture sensation, dry feel, shine, static light flight control, and / or curl retention while, for the skin and the care of the nail, the properties of said strength and appearance, retention of moisture in the skin, softness of the skin, attraction of air humidity, delay of the loss of water in the skin and / or, sensation and reduction of irritations of the skin the skin caused by contact with detergents, soaps and the like, are improved. The momentary invention relates to polymer compositions and novel water-soluble ampholyte conditioning polymers for treating keratin. These polymers comprise APTAC or MAPTAC; acrylic acid, methacrylic acid, AMPSA or MAMPSA and, optionally, an alkyl or methacrylic acrylate. The amfolite polymer conditioning additives for hair care products described herein improve the ability to comb wet and dry hair, especially to untangle, wet comb and reduced static light flight, gloss and fixing properties, especially the curl retention. These ampholyte polymers which are also effective in skin care products can have an average molecular weight weight from about 100,000 to 10 million, and comprise (a) from at least 20 to as much as 95 percent by weight. mol of MAPTAC or APTAC; alone or in combination; (b) from at least 5 to as much as 80 mole percent acrylic acid, methacrylic acid, AMPSA or MAMPSA, alone or in combination; (c), optionally, up to about 20 mole percent of an alkyl acrylate or methacrylate. These amfolite polymers are added to the product formulations for hair or skin care in amounts ranging from about 0.01 to about 20% by weight, based on the weight of the total formulation. They are particularly compatible with products containing anionic surfactant such as shampoos, generally providing clear formulations without the loss of the conditioning properties described above. The present invention also relates to a keratin treatment method comprising contacting a keratin containing substrate with an effective amount of a cosmetically acceptable medium containing 0.01-20%, by weight, of an instant amfolite polymer. The momentary invention is directed to novel ampholyte polymers and polymer compositions and to the use thereof in the treatment of keratin-containing substrates, particularly human skin, hair or nails. In particular, the momentary invention is directed to an ampholyte polymer prepared from or comprising: (a) up to about 99% mol acrylamidopropyl trimethyl ammonium chloride (APTAC) or methacrylamidopropyltrimethyl ammonium chloride (MAPTAC); and (b) acrylic acid (AA), methacrylic acid (MM), 2-acrylamido-2-methylpropane sulfonic acid (AMPSA) or 2-methacrylamido-2-methylpropane sulfonic acid (MAMPSA). Preferably, the mol ratio of a): b) in the ampholytic polymer is from about 20:80 to about 95: 5, more preferably from about 25:75 to about 75:25. In addition, the average weight of the polymer molecular weight, as determined by the viscometry, is at least about 100,000, preferably from about 100,000 to about 10,000,000, more preferably from about 500,000 to about 8,000,000. Alternatively, gel permeation chromatography (GPC) with scattered detection of light can be used. Optionally, but preferably, the additionally contained instant polymers are further comprised of or are prepared using (c) above about 20 mole percent, preferably at least about 0.1 mole percent, of a straight chained methacrylate or alkyl acrylate or branched C?-C22, preferably a C?-C-alkyl acrylate and more preferably methylacrylate, wherein the upper mole percent of c) in the instant polymers is limited by the solubility considerations. It is believed that, in addition to about 20 mol% of the acrylate or methacrylate, the instant polymers become insoluble. A more preferred molecular weight range for the instant polymers is from about 500,000 to about 8,000,000, as determined by the viscosity or GPC. For example, the reduced viscosity values can be used to approximate the weight of the average molecular weights of the instant polymers. Preferably, the mol ratio of a): b) is from 25:75 to about 75:25, and the preferred polymers contain from at least about 0.1 to about 20 mol% of the acrylates or methacrylates defined in the foregoing. More preferably, the instant polymers contain from about 5 to about 15 mol% of the acrylate or methacrylate moiety. In the most preferred case, the alkyl acrylate or the methacrylate is methyl acrylate. The momentary invention is also directed to a water-soluble ampholyte polymer comprising: a) about 20 to about 95% in mol APTAC or MAPTAC, preferably MAPTAC; b) about 5 to about 80 mol% acrylic acid, methacrylic acid; AMPSA or MAMPSA, preferably acrylic acid; and c) O to about 20 mol%, preferably 0.1 to about 20 mol%, of a C 1 -C 22 straight or branched chain alkyl acrylate or methacrylate, preferably a C 1 -C 4 alkyl acrylate or methacrylate and more preferably methyl acrylate , wherein, the molecular weight of the polymers is at least about 100,000. Preferably, the momentary invention is directed to a water soluble amfolite polymer comprising: a) about 25 to about 75% mol APTAC or MAPTAC; b) about 25 to 75% in mol acrylic acid or methacrylic acid; and c) about 5 to about 15 mol% of a straight or branched chain alkyl acrylate or methacrylate of C?-C22 wherein the molecular weight of the polymer is at least about 100,000. In addition, the momentary invention is directed to a method for treating a keratin-containing substrate comprising contacting the substrate with the ampholyte polymer defined above, preferably with an effective amount of the polymer or, an effective amount of a cosmetically acceptable medium which it comprises from about 0.01 to about 20%, preferably from about 0.1 to about 10%, by weight, based on the total weight of said medium, of a polymer of instant soluble water-soluble amfolita. The momentary invention is further directed to a cosmetically acceptable medium containing from about 0.01 to about 20%, based on the total weight of said at least one medium, of one of the instant water-soluble ampholyte polymers, wherein the medium is selected, among all, from the group consisting of shampoos, shaving lotions, blockers, lotions hand, liquid soaps, bar soaps, bath oil bars, shaving creams, dishwashing liquids, conditioners, hair dyes, permanent waves, relaxers, hair bleaches, hair fixers, styling gels, or gels for the bathroom. Preferably, the concentration of the ampholyte polymer is from about 0.1 to about 10%, based on the total average weight. The momentary invention is also directed to a method of treating a keratin-containing substrate comprising: contacting the substrate with an effective amount of an ampholyte polymer, wherein said polymer comprises: a) about 20 to about 95 mol%, preferably about 25 to about 75 % in mol, APTAC or MAPTAC; b) about 5 to about 80 mol%, preferably about 25 to about 75 mol%, acrylic acid, methacrylic acid, AMPSA or MAMPSA; and c) O to about 20 mol%, preferably about 0.1 to about 20 mol%, more preferably about 5 to about 15 mol%, of a straight or branched C 1 -C 22 alkylacrylate or methacrylate, wherein the weight The molecular weight of the polymer is at least about 100,000.

As used herein, the term "keratin" refers to a human or animal hair, skin and / or nails. As used herein, the term "active base" refers to an additive concentration based on the active solids in the storage solution. As used herein, the term "effective amount" refers to that amount of a necessary composition causing a desired result, such as, for example, the amount needed to treat a substrate containing keratin for a particular purpose, such as conditioners. . Turning now to each of the components of the instant amfolite polymers, the cationic component is MAPTAC or -APTAC as those that can be represented as follows: • counterion, preferably a halogen such as CI " MAPTAC • counterion, preferably a halogen such as Cl " These monomers are hydrolytically stable, and impart excellent conditioning properties to instant polymers. MAPTAC is the preferred cationic monomer. The polymers of the instant invention are present in an amount such that the mole ratio of cationic: anionic is from about 20:80 to about 95: 5. In such ratios, these portions generally import excellent conditioning properties to the instant polymers and are believed to contribute to most if not all of the hair conditioning properties mentioned above, including curl retention. These cationic monomers possess the necessary substantivity for the total polymer to function. They also provide untanglement, the ability to comb wet and dry hair, shine and feel, and improved static light flight control. The second component of the ampholyte polymers of the present invention is the acrylic acid of anionic monomer (AA) or methacrylic acid (MAA) which can be represented by the following formula: where R is H or CH3. This portion contributes to the film that forms the total polymer capacity and thus improves curl retention. In amounts as small as 5 mole percent, the acrylic acid improves the compatibility of the overall polymer with the surfactant or anionic surfactants in the typical shampoo. It has also been found that AA or MAA in combination with MAPTAC / APTAC generally improve conditioning properties over conventional amfolite polymers. This result is unexpected, and is another indication of the unexpected properties of the amfolite polymers of the present invention.

Additionally, 2-acrylamido-2-methylpropane sulfonic acid (AMPSA) or 2-methacrylamido-2-methylpropane sulfonic acid (MAMPSA), preferably AMPSA, can be used as components (b), alone or in combination with acrylic acid or methacrylic acid. These monomers are represented as follows: where R = H or CH and X = suitable salt that forms cation. The third and optional but the preferred mer unit of the momentary invention is an alkyl acrylate or methacrylate represented as follows: Preferably, this mer unit is an alkyl acrylate or C 1 -C 4 alkyl methacrylate, acrylates being more preferred and with methyl acrylate are more preferred. These monomer units impart surprising and unexpected conditioning properties conditioning properties to the MAPTAC / AA type copolymers of the instant invention which are improved over conventional ampholyte conditioning polymers in their own right. The instant polymers can be prepared by conventional solution polymerization techniques, as indicated in the following and in the Examples. Thus, to prepare the instant polymers, the appropriate weights for the desired mole% of APTAC / MAPTAC and acrylic acid or other anionic monomers are charged to a glass reactor equipped with stirring means. The desired amount of alkyl acrylate or methacrylate is then added to the reactor with vigorous stirring to give the desired total monomer concentration, which is generally about 10-25% by weight. The monomer mixture can then be adjusted to a pH of from about 3.0 to about 6.5 with dilute NaOH, heated to about 55 ° C, and purged with nitrogen for at least thirty minutes. The polymerization is initiated by then adding about 5 X 10 -2 mol of sodium persulfate and about 2.4 X 10 mol% of sodium bisulfate. After the maximum exotherm is reached, sodium bisulfite and dilute water are added to sweep any residual monomer and dilute the final product to 4-8% polymer solids. The preferred terpolymers that can be prepared by this technique are represented as follows: CH3 i -CH2-CH-), f CH. -CH2 - CH -fe i c = o c = o c = o i i i OH NH OCH3 (CH2 2) / 3 where x, y and z N + c? represent * 's in mol. (CH3), AA MAPTAC MA Representative of the best mode known to the inventors are the polymers wherein the percentages of MAPTAC / AA / MA are 45/45/10 and such as polymers added to a cosmetically acceptable medium in a concentration of about 0.1 to about 10%, by weight , based on the total average weight. Methods of adding instant ampholyte polymers to a cosmetically acceptable medium are known to those skilled in the art. The best mode also involves the use of an effective amount of the polymer-containing medium in the treatment of a substrate containing keratin, preferably human skin or hair. Methods of using such compositions are well known in the art. The molecular weight of the amfolite polymers of the present invention may be within the broad range greater than about 100,000, preferably from about 10,000 to about 10 million, and more preferably from about 500,000 to 8,000,000. The reduced viscosity (dl / g) can be used as an approximate measure of the weight average molecular weight of the amfolite polymers of the present invention. The values shown here represent a capillary viscosity measured with the Ubbelhhde Capillary Viscometer at 0.05% polymer concentration in a 1M NaCl solution, pH 7, at 30 ° C. The resulting molecular weight value is calculated according to methods well known in the art. The ampholyte polymers of the present invention are used in compositions for treating hair, skin or nails by incorporating them into a cosmetically acceptable medium for the treatment of hair, skin or nails in amounts of about 0.01 to about 20%, on a polymer base. active, based on the total weight of said medium, and preferably in an amount of about 0.1 to about 10% active polymer based on the total average weight. These compositions can be presented in various forms, ie, various cosmetically acceptable media, such as a liquid, cream, emulsion, gel, thickening lotion or powder; they may contain water and also any cosmetically acceptable solvent, in particular monoalcohols, such as alkanols having from 1 to 8 carbon atoms (such as ethanol, isopropanol, benzyl alcohol and phenylethyl alcohol) polyalcohols, such as alkylene glycols (such as glycerin, ethylene glycol and propylene glycol) and glycol ethers, such as monoalkyl ethers mono-, di- and tri-ethylene glycols, for example monomethyl ether of ethylene glycol and diethylene glycol monomethyl ether, used individually or in a mixture. These solvents can be present in ratios of up to as much as 70% by weight, relative to the weight of the total composition. These compositions can also be packaged as an aerosol, in which case they can be applied in the form of an aerosol spray or in the form of an aerosol foam. As the propellant gas for these aerosols, it is possible to use, in particular, dimethyl ether, carbon dioxide, nitrogen, nitrous oxide and volatile hydrocarbons, such as butane, isobutane, propane and, possibly, chlorinated and fluorinated hydrocarbons, although the latter is falling in an unfavorable environmental increase. Preferred compositions may also contain electrolytes, such as aluminum chlorohydrate, alkali metal salts, for example, sodium, potassium or lithium salts, these salts being preferably halides, such as chloride or bromide and sulfate, or salts with organic acids, such as acetates or lactates, and also alkaline earth metal salts, preferably the carbonates, silicates, nitrates, acetates, gluconates, pantotenates and calcium, magnesium and strontium lactates. These compositions can also be presented in the form of a powder or lyophilisates to be diluted before use. The compositions according to the present invention can usually contain any other ingredient used in cosmetics, such as perfumes, pigments that can be used to color the composition or hair fibers, preservatives, sequestering agents, thicknesses, silicone softeners, synergistic foam agents, foam stabilizers, sunscreens, peptizers and also active ingredients. anionic, nonionic, cationic or amphoteric surfaces or mixtures thereof.

These compositions can be used, in particular, in the form of a shampoo, a rinsing lotion, cream or a treatment product that can be applied before or after coloring or bleaching, before or after shampooing, before or after the permanent or before or after straightening, and can also take the form of a coloring product, a fixing lotion, a brushing lotion, a bleaching product, a permanent product or a product to straighten the hair. A particularly preferred embodiment consists of the use in the form of a shampoo for washing the hair. In this case, these compositions contain anionic, cationic, nonionic or amphoteric surface active agents typically in an amount of 3-50% by weight, preferably 3-20%, and their pH is generally in the range of 3 to 10. A list of surface active agents that can be used according to the invention is given in US Pat. Nos. 4,240,450; 4,445,521 and 4,719,099. Another preferred embodiment is the use in the form of a rinse lotion to be mainly applied before or after washing. These lotions are typically aqueous or aqueous alcoholic solutions, emulsions, thickening lotions or gels. If the compositions are presented in the form of an emulsion, they can be non-ionic, anionic or cationic. Nonionic emulsions consist mainly of a mixture of an oil and / or a fatty alcohol with a polyoxyethylenated alcohol, such as polyoxyethylenated stearyl or cetyl / stearyl alcohol, and cationic surface active agents that can be added to these compositions. Anionic emulsions are formed essentially from soap. If the compositions are in the form of a thick lotion or a gel, they contain thicknesses in the presence or absence of a solvent. The thicknesses that can be used are especially carbopol, xanthan gums, alginates of sodium, gum arabic and cellulose derivatives, and it is also possible to thicken by means of a mixture of polyethylene glycol stearate or distearate or by means of a mixture of an ester phosphoric acid and an amide. The concentration of the thickener is generally 0.05 to 15% by weight. If the compositions are presented in the form of a styling lotion, modeling lotion, or fixing lotion, they generally comprise, in aqueous, alcoholic or aqueous alcoholic solutions, the ampholyte polymers defined in the foregoing. If the compositions of the instant invention are intended for use in the dyeing of keratin fibers, and in particular for human hair, they generally contain at least one oxidation dye precursor and / or a direct dye, in addition to the terpolymer of amfolita They may also normally contain any other adjuvant used in this type of composition. The pH of the dye compositions is generally from 7 to 11 and can be adjusted to the desired value by the addition of an alkalized agent. The compositions according to the present invention can also be used to curl or smooth the hair. In this case, the composition generally contains, in addition to the instant amfolite polymer, one or more reducing agents and, if appropriate, other adjuvants normally used in this type of composition; such compositions are intended for use in conjunction with a neutralizing composition. EXAMPLES The following examples also define momentary inventions. They do not intend, however, to limit these inventions in any way. In some of the following examples, wet combing and unraveling composition tests are performed. In many of these tests, the instant polymers were evaluated in the formulations described in the following. Wet-combing and detangling tests were tested on a mini-tensor tester using pieces of laboratory-made hair sample tissue.

These procedures are well known to experienced practitioners. SHAMPOO # 1 * c.s. referred to enough quantity SHAMPOO # 2 SHAMPOO # 2 Commercially available conditioning ingredients available from: 1. Sherex Chemical Company 2. Croda, Inc. 3. ICI Americas 4. Fanning Corporation 5. Witco - Sonneborn Div. Example 1 - PREPARATION OF A TERPOLYMER OF AA / MAPTAC / METHYLACRYLATE 45/45 / 10 M / M / M A terpolymer of M / M / M 45/45/10 acrylic acid / MAPTAC and methyl acrylate were prepared as follows: 1. Water treated with zeolite, acrylic acid, and MAPTAC (Articles 1, 2 and 3 in Table 1, below) was added to a glass-lined reactor in the amounts shown, and stirred until uniform. 2. Methylacrylate monomer (Article 4) was then added to the reactor. 3. The temperature of the mixture was kept below 30 ° C, and the reactor was purged with nitrogen for 45 minutes. 4. After 45 minutes, the ratio of the purge was reduced, and the mixture was heated to 52 ° C. This purge ratio was continuous until the completion of Step 12. 5. V-501 (2, "'21-azobis (2-amidino propane) dihydrochloride) was mixed in water (Articles 5 and 6) in a mixing vessel. 6. A solution in water V-50 (4,41-azobis (4-cyanovaleic acid)) (Articles 7 and 8) was prepared in another tank of the mixture, stages 5 and 6 were completed during the purge and the heated 7. Added mixed V-501 to the reactor followed by the V-50 solution 8. After a short period, the reaction mixture started an exothermic, reaching approximately 90-95 ° C after approximately one 9. The reaction mixture was kept at the temperature reached for one hour, after one hour, water (Item 9) was added and mixed for 30 minutes or until the reaction mixture was uniform. of the reaction mixture at 70-75 ° C during the dilution step 10. Caustic mixture was mixed (Article 10) and a (Article 11) and added to the reactor for a period of 30 minutes, keeping the temperature below 75 CC. 11. This reaction mixture was maintained for 15 minutes, and the temperature increased to 80-85 ° C. 12. The sodium bisulfite solution (Article 12) was added over 25-35 minutes at 80-85 ° C. Then it was mixed for an additional 30 minutes and the nitrogen purge was turned off. * "The cooling below 50 ° C then occurred 13. The sodium benzoate (Article 13) and water (Article 14) were mixed and added This mixture was stored until uniform 14. The batch was cooled to less than 50 ° C and decanted in a convenient container The resulting polymer representing the best mode known to the inventors had an average% molecular weight of approximately 1.1 X 10d, as determined by the viscosity The polymers comprised 45% in mol AA, 45% in mol MAPTAC and 10% in mol of methylacrylate.

TABLE 1 Terpolymer AA / MAPTAC / MA 45/45/10 m / m / m TOTAL SUPPLY 100,000 1000.00 EXPECTED PRODUCT in 100% PERFORMANCE 100. 000 1000. 00 2-14 Additional amfolite polymers were prepared using the general procedure of Example 1. The results are shown in Table 2 below along with wet combing and detangling response against a polymer control and Gafquat® HS. -100, a commercially available conditioner. Wet combing and detangling tests were tested in a mini-tension tester using a 2.2 g bleached hair made in the laboratory. The polymer solids were 0.26% in Shampoo # 1. t I saw espuesasco * SMA is stearyl methacrylate (C18 acrylate) Examples 15-21 Several terpolymers and a copolymer were synthesized to further demonstrate the momentary invention.

These samples were evaluated by wet combing and detangling against a non-polymeric control and a corresponding amount of a commercially available conditioner in a typical shampoo formulation (shampoo). #1) . The results are shown in Table 3 below. TABLE 3 * Gafquat® HS-100 is commercially available from International Specialty Products.

Example 22 The polymer of Example 17 (45/45/10 AA / MAPTAC / MA) was tested in the three cosmetically acceptable media described above, ie, Shampoo # 1, Shampoo # 2 and the conditioner. This polymer was tested for detangling and wet combing against a control (without polymer) and Gafquat® HS-100 in each of these formulations. The results of these evaluations are shown in Tables 4 and 5 below. TABLE 4 Disentangling Total Composition (mJ) Control Gafquat® AA / MAPTAC / MA Shampoo # 1 352 256 433 Shampoo # 2 357 315 126 Conditioner 116 14 27 It can be seen from the unraveling results that polymer AA / MAPTAC / MA performs substantially better than Gafquat HS-100 in shampoo # 2. The wet combing results reveal that this polymer performs best in all three formulas. Example 23 - SOFTENER BATH GEL Preparation: A softening bath gel was prepared as follows: the ingredients of Part A were mixed in the order listed, proceeding sequentially after each addition to become clear and uniform. Sodium lauroyl sarcosinate and AA / MAPTAC / MA polymer were added as Part B. During continued mixing, Part C was added and the pH was adjusted to 6.0 with citric acid. This method resulted in a mild bath gel that has excellent instant foam properties and excellent foam slippage. The use of this gel left a sensation on the smooth and silky skin. Index of commercially available ingredients from: 1. Henkel, Inc. 2. Goldschmidt Chemical Co. 3. Miranol Chemical Co. 4. W.R. Grace Example 24 - NOCTURNE MOISTURIZING CREAM Preparation: A night moisturizing cream was prepared by mixing parts A and B in separate containers, heating each at 78 ° C, and slowly adding Part A to Part B with agitation. It was continued mixing and allowed to cool when it was uniform. Part C was then added at 50 ° C, with continuous mixing and cooling. Part D was then added at 40 ° C with cooling and continuous mixing. Occurring the emptying at 30 ° C. This method resulted in a rich night cream, which had excellent substantivity, softness, sensation and moisturizing properties. The ingredient index is commercially available from: 1. Sherex Chemical Co. 2. Van Dyk & Co., Inc. 3. Lipo Chemicals, Inc. 4.Amerchol Corp. 5. ICI Americas. 6. Witco Sonneborn Div.

Strahl & Pitsch, Inc, Example 25 - HYDROALCOHOL BRONZING LOTION Preparation: Parts A and B were prepared in two separate containers. With moderate agitation, Part B was added in Part A. They continued mixing until they became clear and uniform. The ingredient index is commercially available from: 1. Novarome Inc. This method resulted in a lotion with excellent skin moisturization and sensory properties. Example 26 - HUMIDANT HAND LOTION Ingredient% P / P A - Adol 521 5.0 Ceraphyl 424z 5.0 Glucate SSS 0.8 Liponate IPMfi 4.0 Preparation: Part A was heated to 78 ° C. In a separate vessel, the ingredients of Part B were added to water and heated to 80 ° C. Slowly, Part A was added in Part B with agitation. Starting to cool when it was uniform. Part C was added at 40 ° C, with mixing and continuous cooling. The product is vacuum at 30 ° C. The component index is commercially available as follows: l.Sherex Chemical Co. 2. Van Dyk Co. , Inc. 3.Amerchol Corp. 4. ICI Americas 5.Strahl & Pitsch, Inc. 6. Lipo Chemicals, Inc.

Example 27 - LOTION FOR HANDS AND BODY Preparation: DI water was heated to 80 ° C, and Carbomer was sieved slowly. The mixing occurred until the Carbomer hydrated while maintaining the temperature. Part B was then treated at 80 ° C. With rapid agitation, Part B was added to Part A. These components were then mixed for 15 minutes while maintaining the temperature. Then 99% of TEA was added to neutralize. The mixture was then started with cooling. At 40 ° C, Part D was added, and it was continued mixing until uniform and at room temperature. Example 28 - SOAP BAR Ingredients% P / P Base Soap * 98.325 Sodium Silicate (liquid - 37.43%) 0.400 Preparation: 45/45 / 10AA / MAPTAC / MA was added to the noodles in the amalgamator and a small amount of water was fogged into the batch to aid in wetting the polymer.

Example 29 - NEUTRALIZER SHAMPOO Preparation: Parts A and B were prepared in separate containers and heated to 70 ° C while mixing. Part B was combined with Part A with continuous mixing while cooling. At 40 ° C, Part C was added and mixed until it became uniform. The ingredient index is commercially available from: 1. Henkel Corporation 2. Witco Corporation 3. Goldschmidt Chemical Corporation 4. Mona Industries, Inc. 5. Procter & Gamble Chemicals 6. Calgon Corporation Example 30 - HAIR SOFTENER CREAM Preparation: Parts A and B were prepared in separate containers and heated to 70 ° C while mixing. Part A was combined with Part B during continuous mixing while cooling. At 40 ° C, Part C was added and mixed until uniform. ingredient index commercially available from: 1. Witco Corporation 2. Rhone-Poulenc 3. Calgon Corporation

Claims (10)

1. CLAIMS 1. An amfolite polymer characterized in that it comprises: (a) acrylamidopropyltrimethylammonium chloride or methacrylamidopropyltrimethylammonium chloride; and b) acrylic acid, methacrylic acid, 2-acrylamido-2-methylpropanesulfonic acid or 2-methacrylamido-2-methylpropanesulfonic acid; wherein the mol ratio of a): b) is comprised from about 20:80 to about 95: 5 and wherein the average weight per molecular weight of the polymer, as determined by viscometry, is at least about 100,000.
2. 2. The polymer according to claim 1, characterized in that a) is MAPTAC and b) is acrylic acid.
3. 3. The polymer in accordance with the claim 1, characterized in that the molecular weight is comprised from about 100,000 to about 10,000,000 and wherein the mol ratio of a): b) in the polymer is comprised of 25:75.
4. The polymer according to claim 2 or 3, characterized in that it additionally contains up to 20 mole percent of a straight or branched chain of C 1 -C 22 alkyl acrylate or alkyl methacrylate.
5. 5. A water-soluble ampholytic polymer characterized in that it comprises: a) about 20 to about 95 mol% APTAC or MAPTAC; b) about 5 to about 80% mol of acrylic acid, methacrylic acid, AMPSA or MAMPSA; c) about 0 to about 20 mol% of a straight or branched alkyl chain of C?-C22 alkyl acrylate wherein the molecular weight of the polymer is at least about 100,000.
6. 6. An amfolite polymer characterized in that it comprises: a) from about 25 to about 75% mol of APTAC or MAPTAC; b) from about 25 to about 75% mol of acrylic acid, methacrylic acid, AMPSA or MAMPSA; and c) from about 0.1 to about 20 mol% of a straight or branched chain of C 1 -C 22 alkyl acrylate or methacrylate.
7. 7. A polymer of ampholyte characterized in that it comprises: a) up to about 99% mol of APTAC or MAPTAC; and b) acrylic acid, methacrylic acid, AMPSA, or MAMPSA, wherein the molecular weight of the polymer is at least about 100,000.
8. 8. A cosmetically acceptable medium characterized in that it contains from about 0.1 to about 20%, based on the weight of the medium, of the polymer according to claims 1, 5, 6 or 7.
9. 9. A method for treating a substrate containing keratin characterized in that it comprises contacting the substrate with an effective amount of a cosmetically acceptable medium comprising from about 0.1 to about 20% by weight of the ampholyte polymer according to claims 1, 5, 6, or 7, characterized in that the amfolite polymer optionally contains up to about 20 mole percent of a straight or branched chain of C 1 -C 22 alkyl acrylate, a straight or branched chain of alkyl acrylate and wherein the cosmetically acceptable medium is optionally a member selected from the group consisting of group consisting of a shampoo, a shaving lotion, a sunscreen, a hand lotion, a liquid soap, a ha rod bar, a bath oil bar, a shaving cream, a dishwashing liquid, a conditioner, a hair dye, a permanent wave, a hair softener, a hair decolorizer, a hair setting formulation hair, a styling gel, or a bath gel. A method for treating a keratin-containing substrate characterized in that it comprises contacting the substrate with the ampholyte polymer according to claim 1, 5, 6, or 7.