MX2011002352A

MX2011002352A - Hair styling method.

Info

Publication number: MX2011002352A
Application number: MX2011002352A
Authority: MX
Inventors: Gilles Verboom; Jean Louise Razon Navarro
Original assignee: Alberto Culver Co
Priority date: 2008-09-03
Filing date: 2009-09-03
Publication date: 2011-04-05
Also published as: WO2010028142A3; CL2009001800A1; AR073491A1; EP2331061A2; BRPI0919177A2; CA2735362A1; US20110192414A1; NZ591246A; AU2009288047A1; WO2010028142A2

Abstract

Provided is a method for styling hair that includes contacting the hair with a compositions that includes a poly(vinylamine-vinylformamide) copolymer and conditioning agents, applying heat to the hair in an amount effective to at least semi-permanently style the hair, and styling the hair. The method of the present invention promotes improved hair styling properties such as improved curl retention or straightness retention, e.g., under conditions of high relative humidity and temperature. The method can be used for semi-permanently straightening or curling the hair.

Description

METHOD FOR HAIR STYLIZATION FIELD OF THE INVENTION Compositions for hair styling or hair fixation are widely used by consumers in the cosmetic industry to preserve a particular styling of the hair. Compositions for styling the hair can help to manipulate or stylize the hair, providing temporary benefits to maintain the hairstyle (fixation) and / or maintain the shine or appearance (grooming, re-styling) of the hair, for example, at sunset , during the day, between periods of hair washing, or between subsequent procedures of hair fixation.

BACKGROUND OF THE INVENTION Various methods are used to measure the effectiveness of a hair styling composition. A method commonly used to effectively test the effectiveness of hair styling compositions involves measuring curl conservation under wet conditions. Another method involves straightening semi-permanent hair using an iron plate followed by several washing steps. Additional methods of subjective evaluation may be included, for example: visual and tactile detection methods (e.g., by visual examination and touch) for characteristics such as appearance (brightness, cleanliness, naturalness of appearance and texture), feeling (rigidity, stickiness, softness), curl memory (rebound, and re-styling capacity), memory (equal surface), ease of combing and brushing the hair, residue (desquamation), static, uniformity, and similar. Also of importance are the aesthetic characteristics and appearance provided by the compositions for styling hair before, during, and after application to hair. Preferably, the viscosity of the product should not be low to avoid dripping during application. The product should be easy to spread, have a smooth texture, a non-thick feeling, and be able to dry relatively quickly on the hair.

Of additional importance is the ability of the compositions to style the hair to control the "tangling" of the hair, which in general causes the hair to become unmanageable and undisciplined in appearance. The matting can become a problem when the hair is exposed to higher humidity, for example, a relative humidity of about 80% or more. The problem can get worse in person with Chinese hair, either naturally or "permanently", which leads to what many call a "bad hair day". In this case, the hair loses its natural shape and / or its curly definition. Often the hair undergoes a wide variety of stresses that can cause damage to the hair, resulting in entanglement. These include shampooing, rinsing, drying, warming, combing, styling, perming, coloring, exposure to the elements, and the like. These stresses can leave the hair in a dry, rough, dull, or matted condition, which may be caused, for example, by repeated abrasion of the hair surface and removal of natural hair oils and other natural components of hair. conditioning and humidification. Additionally, hair is often subjected to stresses related to the weather, for example, sunlight, wind, and changes in temperature and humidity, which can cause the entanglement of hair and other conditions considered by consumers to be cosmetically undesirable. .

The hair setting compositions including one or more hair setting polymers for imparting styling and / or setting properties have been set forth. For example, U.S. Patent No. 4,713,236 describes compositions that include amine-containing polymers and copolymers that contain a primary pendant amine group, to impart conditioning properties for the hair. U.S. Patent Nos. 5,478,553 and 5,632,977 disclose hair setting compositions containing polymeric n-vinylformamide and methods for treating hair. U.S. Patent No. 6,800,302 describes compositions comprising hydrocarbon-substituted monosaccharides that can be hot activated for durable non-permanent formation of the keratinous fibers. A "Brazilian" hair straightening treatment has also been described that requires the use of a formaldehyde solution together with an iron plate.

The provision of hair styling compositions exhibiting good curl preservation with high moisture and / or preservation of the bristle while maintaining desirable subjective properties, e.g., smooth texture, curl memory, bounce, naturalness of appearance, etc., it has been difficult to achieve with conventional compositions for fixing hair. There is an increasing need for hair styling compositions that provide curl preservation at high humidity and / or preservation of hair and as well as convenient subjective properties. The present invention provides these compositions and methods of associated use.

SUMMARY OF THE INVENTION The present invention provides a method for styling the hair, the method includes contacting the hair with a composition comprising an amount effective to styling the hair of a copolymer of poly (vinylamine-vinylformamide), applying heat to the hair in an effective amount to stylize for the hair at least semi-permanently, and styling to comb the hair at least semi-permanently.

The present invention also provides a method for straightening the hair, the method comprising contacting the hair with a composition comprising an amount effective to styling the hair of a copolymer poly (vinylamine-vinylformamide), applying heat to the hair at a temperature of at least about 100 ° C for at least about 1 second, and applying a straight surface against the hair to straighten the hair at least semi-permanent.

The present invention further provides a method for curling the hair, the method comprising contacting the hair with an effective amount of a composition comprising an amount effective to styling the hair of a copolymer of poly (vinylamine-vinylformamide), applying heat to the hair at a temperature of at least about 100 ° C for at least about 1 second, and applying a curved surface against the hair to curl at least semi-permanent hair.

The present invention provides a method for styling the hair, the method includes contacting the hair with a composition comprising an effective amount for styling the hair of a copolymer of poly (vinylamine-vinylformamide), subsequently contacting the hair with a composition comprising a conditioning agent, applying heat to the hair in an amount effective to style the hair at least semi-permanently, and styling to comb the hair at least semi-permanently.

The present invention also provides a method for straightening the hair, the method comprising contacting the hair with a composition comprising an effective amount for styling the hair of a copolymer of poly (vinylamine-vinylformamide), subsequently contacting the hair with the hair. hair with a composition comprising a conditioning agent, applying heat to the hair at a temperature of at least about 100 ° C for at least about 1 second, and applying a curved surface against the hair to curl the hair at least semi-permanent.

The present invention further provides a method for curling the hair, the method comprising contacting the hair with an effective amount of a composition comprising an amount effective to styling the hair of a copolymer of poly (vinylamine-vihilformamide), subsequently, contacting the hair with a composition comprising a conditioning agent, applying heat to the hair at a temperature of at least about 100 ° C for at least 1 second and applying a curved surface against the hair to curl the hair at least semi-permanent .

BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows tufts of virgin hair that have been treated by a method of the present invention and the effects of five shampoo / conditioner treatments on the tufts.

Figure 2 shows strands of bleached hair that had been treated by the method of the present invention and the effects of five treatments with shampoo / conditioner on the tufts DETAILED DESCRIPTION OF THE INVENTION In accordance with the present invention, keratinous fibers such as mammalian (e.g., human) hair are treated with a composition that includes an effective amount of one or more copolymers of poly (inilamine-vinylformamide) and an optional carrier. The effective amount used preferably includes an amount that is effective to preserve hair styling, such as, for example, curl preservation or preservation of the hair, through at least three wash cycles. Preferably, the carrier used in the composition is an aqueous carrier. The hair may be contacted with the composition for any effective amount of time, for example, between about 1 minute to about 30 minutes, between about 1 minute to about 20 minutes, between about 5 minutes to about 10 minutes. The hair can then be optionally treated with a composition comprising a conditioning agent. The treated hair, ie the hair treated with the composition of the poly (vinylamine-vinylformamide) copolymer either alone or in combination with a conditioning composition, has heat applied in an amount effective to comb the hair at least semi-permanent, for example, to provide curl retention or retention of hair in stylized hair after at least three wash cycles. The heat can be applied under conditions established in more detail later. The treated hair can then be styled using a suitable method to comb the hair at least semi-permanently, including conventional styling methods. Preferably, the styling comprises curling or straightening the hair; even more preferably, the styling comprises straightening the hair.

The composition of the poly (vinylamine-vinylformamide) copolymer used according to the method of the present invention, preferably includes one or more copolymers of poly (vinylamine-vinylformamide) as a styling polymer. In some embodiments, the composition used according to the method of the present invention may include one or more linear poly (vinylamine-vinylformamide) copolymers, a polyvinylpyrrolidone polymer, and an aqueous carrier. The copolymer of poly (vinylamine-vinylformamide) is preferably present in the composition in an amount effective to style the hair, for example, in an amount effective to stimulate at least about 50% curl preservation in the hair after approximately 2 hours under conditions of approximately 90% relative humidity and a temperature of approximately 24 ° C [75 ° F], when the composition is applied to the mammalian hair. Suitable poly (vinylamine-vinylformamide) copolymers can be obtained, for example, by partial hydrolysis of a polyvinylformamide, to produce one or more copolymers containing monomer units of vinylamine and vinylformamide. Poly (vinylamine-vinylformamide) copolymers, which can be used as a styling polymer in the composition, include the polymers contained in the products marketed under the trademark LUPAMIN®, which are marketed by BASF and are supplied as aqueous solutions that they contain linear poly (vinylamine-vinylformamide) copolymers. The polymers in LUPAMIN® are prepared by polymerization of vinylformamide followed by partial hydrolysis of the polyvinylformamide. Illustrative poly (vinylamine-vinylformamide) copolymers, which can be used in the composition, include the polymers contained in LUPAMIN® 9095, LUPAMIN® 9050, LUPAMIN® 9030, LUPAMIN® 9010, LUPAMIN® 5095, and LUPAMIN® 1595.

The digits used together with the product name LUPAMIN® correspond to the molecular weight and the degree of hydrolysis of the polymer. The first two (that is, the first and second) digits in the name of the product correspond to the molecular weight of the polymer. For example, the first two digits in LUPAMIN® 9095, LUPAMIN® 9050, LUPAMIN® 9030 and LUPAMIN® 9010, that is, "90," are indicative of the molecular weight of the polymer. The average molecular weights of the illustrative polymers and other properties associated with the corresponding LUPAMIN® products, as published in the BASF technical bulletins, are summarized in Table A below.

Table A * estimated based on the solids content, the hydrolysis index and the polymer content in relation to the total solids reported for other LUPAMIN® products It is believed that LUPAMIN® 9050 has a molecular weight of 340,000 based on the molecular weights reported in BASF's technical bulletins for LUPAMIN® 9095, 9030 and 9010. It is believed that LUPAMIN® 9050 has a solids content of approximately 16-19 % by weight based on the results of the solids test performed on a product sample and the solids content reported for LUPAMIN® 9095, 9030 and 9010. It is estimated that LUPAMIN® 9050 has a content of poly (vinylamine) copolymer. vinylformamide) (ie, polymer content) of about 9-12% by weight based on the solids test, and the reported solids and polymer content for other LUPAMIN® products.

The last two (ie the third and fourth) digits used together with the product name LUPAMIN® represent the degree of hydrolysis, which corresponds to the percentage of the formamide functional groups in the polymer that have been hydrolyzed and converted into vinylamine units . For example, the last two digits in LUPAMIN 9095, that is, "95," indicate the degree of hydrolysis, ie, that the polymer is hydrolyzed to approximately 95% (or hydrolyzed to more than 90% as observed in the BASF technical bulletins for Lupamin® 5095 and Lupamin® 1595). In this way, the polymers contained in LUPAMIN® 9095, LUPAMIN® 5095, and LUPAMIN 1595 are believed to contain about 95% vinylamine monomer units (vinylamine monomers) and about 5% vinylformamide monomer units (vinylformamide monomers) ). On the contrary, it is believed that LUPAMIN® 9050 contains about 50% vinylamine monomers and about 50% vinylformamide monomers, it is believed that LUPA IN® 9030 contains about 30% vinylamine monomers and about 70% vinylformamide monomers , and it is believed that LUPAMIN® 9010 contains about 10% vinylamine monomers and about 90% vinylformamide monomers.

The composition of the poly (vinylamine-vinylformamide) copolymer used according to the method of the present invention may also include two or more copolymers of poly (vinylamine-vinylformamide). In some embodiments, it has been found that combinations of two or more poly (vinylamine-vinylformamide) copolymers stimulate the unexpectedly superior curl-keeping properties in high humidity. In one embodiment, the composition used according to the method of the present invention includes at least one high molecular weight poly (vinylamine-vinylformamide) copolymer and at least one poly (vinylamine-vinylformamide) copolymer: low molecular weight . As used herein, a high molecular weight poly (vinylamine-vinylformamide) copolymer refers to a copolymer of poly (vinylamine-vinylformamide) with an average molecular weight greater than about 100,000 g / mol and A low molecular weight poly (vinylamine-vinylformamide) copolymer refers to a copolymer of poly (vinylamine-vinylformamide) with an average molecular weight of about 100,000 g / mol or less.

The high molecular weight poly (vinylamine vinylformamide) copolymer can include, for example, at most about 95% vinylamine monomers (eg, about 95% vinylamine monomers and about 5% vinylformamide monomers), at most about 50% of vinylamine monomers (eg, about 50% of vinylamine monomers and about 50% of vinylformamide monomers), at most about 30% of vinylamine monomers (eg, about 30% of monomers of vinylamine and about 70% vinylformamide monomers), or at most about 10% vinylamine monomers (eg, about 10% vinylamine monomers and about 90% vinylformamide monomers). Suitable high molecular weight poly (vinylamine-vinylformamide) copolymers include, for example, the polymers LUPAMIN® 9095, LUPAMIN® 9050, LUPAMIN® 9030, LÜPAMIN® 9010. The copolymer of low weight poly (vinylamine-vinylformamide) Molecular can include, for example, at most 95% vinylamine monomers (eg, about 95% vinylamine monomers and about 5% vinylformamide). Suitable low molecular weight poly (vinylamine vinylformamide) copolymers include, for example, LUPAMIN® 5095 and LUPAMIN® 1595 polymers.

The poly (vinylamine-vinylformamide) copolymer may be present in the composition in an amount of, for example, from about 0.01% by weight to about 90% by weight, for example, from about 0.01% by weight to about 50% by weight. weight, for example, between about 0.01% by weight to about 30% by weight, for example, between about 0.01% by weight to about 20% by weight, for example, between about 0.01% by weight to about 10% by weight, for example, between about 0.1% by weight to about 20% by weight, for example, between about 0.1% by weight to about 15% by weight, for example, between about 0.1% by weight to about 10% by weight, for example , from about 1% by weight to about 8% by weight, for example, from about 2% by weight to about 7% by weight, for example, from about 4% by weight to about 6% by weight, based on the total weight of the composition. In some embodiments, the composition of the poly (vinylamine-vinylformamide) copolymer contains between about 4 wt% to about 6 wt% of one or more copolymers of the poly (vinylamine-vinylformamide), based on the total weight of the composition . In some embodiments, the copolymer of poly (vinylamine-vinylformamide) utilizes LUPAMIN® 9095 as the copolymer of poly (vinylamine-vinylformamide).

The conditioning composition used according to the method of the present invention, preferably includes a conditioning agent. Suitable conditioning agents may include, for example, one or more silicones. Exemplary silicones include volatile silicones, and for example, include cyclohexasiloxanes and cyclopentasiloxanes.

The conditioning agents in the conditioning composition may be present in an amount of, for example, from about 0.1 wt% to about 90 wt%, for example, an amount between about 0.1 wt% to about 80 wt% , for example, between about 0.1 wt% to about 70 wt%, for example, between about 0.1 wt% to about 60 wt%, eg, between about 0.1 wt% to about 50 wt%, per example, from about 0.5% by weight to about 60% by weight, for example, from about 1% by weight to about 60% by weight, for example, from about 10% by weight to about 60% by weight, for example, from about 20% by weight to about 60% by weight, for example, from about 30% by weight to about 50% by weight, based on the total weight of the conditioning composition. In some embodiments, the conditioning composition contains between about 40% by weight to about 50% by weight of one or more conditioning agents, based on the total weight of the conditioning composition. In some embodiments, the conditioning compositions utilize a combination of cyclohexasiloxane and cyclopentasiloxane as the conditioning agents.

Any composition, i.e., the composition of the poly (vinylamine-vinylformamide) copolymer and / or the conditioning composition, used according to the method of the present invention, may include polyvinylpyrrolidone (PVP), which has been found to provide the hair with good styling performance and desirable subjective properties, such as, for example, luster, low flaking and smooth texture, without sacrificing curl conservation in high humidity or matting resistance. The composition may include polyvinyl pyrrolidone, for example, in an amount between about 0.01% by weight to about 20% by weight, for example, between about 0.05% by weight to about 15% by weight, eg, between about 0.1% by weight to about 10% by weight, for example, from about 0.1% by weight to about 5% by weight, for example, from about 0.1% by weight to about 1% by weight, or for example, from about 0.5% by weight to about 1% by weight.

Any composition used according to the method of the present invention may also include one or more additional ingredients such as, for example, a conditioning agent, a film former or modifier (in addition to the PVP), a thickener, a surfactant, an emollient, an emulsifier, a propellant, a fatty alcohol, and the like, and combinations thereof. The composition preferably exists in the form of a mus or a gel.

Additional film formers, suitable beyond the PVP may include, for example, copolymers of vinylpyrrolidone, cationic cellulose derivatives, polyurethanes, acrylates / copolymer of hydroxyesters, acrylates, celluloses and polysaccharide gums and their derivatives and the like, and combinations thereof. Any composition used according to the method of the present invention may include one or more additional film formers, in an amount of for example, between about 0.01% by weight to about 10% by weight, eg, between about 0.05% . by weight up to about 5% by weight, or for example, from about 0.1% by weight to about 5% by weight. Suitable film-forming polymers may also include, for example, one or more non-ionic copolymers of N-vinylpyrrolidone, methacrylamide and N-vinylimidazole.

Suitable film-forming polymers may also include, for example, one or more copolymers of vinyl pyrrolidone and dimethylaminoethyl methacrylates. Any composition used according to the method of the present invention may include one or more film-forming vinylpyrrolidone copolymers, in an amount of, for example, from 0.01% by weight to approximately 15% by weight, eg, between approximately 0.05% by weight up to about 10% by weight, or between about 0.1% by weight to about 10% by weight. Illustrative vinyl pyrrolidone film-forming copolymers include LUVISET® CLEAR, available from BASF, and the VP / dimethylaminoethyl methacrylate copolymer 845-G, available from International Specialty Products.

Suitable film formers can also include, for example, cationic cellulose derivatives. Any composition may include, one or more cationic cellulose derivatives in an amount of, for example, from about 0.01% by weight to about 10% by weight, for example from about 0.02% by weight to about 5% by weight, or by example, between about 0.05% by weight to about 5% by weight. A preferred class of cationic cellulose derivatives includes, copolymers of a hydroxyethylcellulose and diallyldimethylammonium chloride. An illustrative cationic cellulose derivative is polyquaternium-4, a copolymer of cellulose, 2-hydroxyethyl ether and diallyldimethylammonium chloride. Polyquaternium-4 is the active ingredient in products marketed under the names CELQU EN® H-100 and CELQUAT® L-200, available from Akzo Nobel. It will be appreciated that some film formers, for example, CELQUAT H-100 can also function as conditioning agents.

Suitable film modifiers can include, for example, one or more aminosilicon, one or more PEG-n dimethicones, one or more PEG-n / PPG-n dimethicones, one or more cyclomethicones, one or more plasticizers (e.g. glycols, glycol ethers, glycerin), and the like, and combinations thereof. Suitable dimethicones can include polyethylene / propylene glycol dimethicone derivatives containing an average of n moles of ethylene / propylene oxide, for example, where n is in the range of about 3 to about 20. One PEG-n / PPG-n Exemplary dimethicone includes a PEG-18 / PPG-18 dimethicone, available from Dow Corning under the tradename DC-190. Any composition used according to the method of the present invention may include one or more film modifiers in an amount, for example, between about 0.01% by weight to about 10% by weight, between about 0.02% by weight to about 5%. by weight, or for example between about 0.05% by weight to about 5% by weight.

Suitable thickeners may include, for example, one or more associative and non-associative thickeners, one or more polysaccharides, polysaccharide derivatives, gums (e.g., guar gum, xanthan gum), and the like, and combinations thereof. Suitable associative thickeners may include, for example, acrylate / beheneth-25 acrylate copolymers, combinations - of polyether-1/1, 3-butylene glycol, and combinations thereof. Any composition used according to the method of the present invention, may include, one or more thickeners, in an amount of, for example, between about 0.01% by weight to about 15% by weight, eg, between about 0.05% by weight. weight up to about 8.0% by weight, or for example, between about 0.1% by weight to about 3.0% by weight. Illustrative thickeners include TINOVIS® GTC, available from Ciba Specialty Chemicals, PURE THIX® HH, available from Southern Clay.

Suitable fatty alcohols in any composition used according to the method of the present invention can include saturated or unsaturated C8-C2 fatty alcohol, linear or branched. The fatty alcohols can be selected from the group consisting of myristyl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol or the like, and mixtures thereof. The fatty alcohols may be present in any suitable amount.

Suitable emulsifiers in any composition used in accordance with the method of the present invention may include stearamidopropyldimethylamine, glyceryl esters, in particular those with an HLB value between about 3 to about 4, for example, between about 3.5 to about 4.0 (such as, glyceryl stearate), or the like;, and mixtures thereof. The emulsifier may be present in any suitable amount.

Suitable emollients in any composition used according to the method of the present invention may include a C12-C15 alkyl benzoate. Any of the compositions used according to the method of the present invention may include, for example, between about 0.01% by weight to about 15% by weight of an emollient, for example, between about 0.1% by weight to about 10% by weight, for example, between about 1% by weight to about 5% by weight, based on the total weight of the composition. In some embodiments, the alkyl (C12-C15) benzoate is present in the conditioning composition.

The carriers in any of the compositions used according to the method of the present invention can comprise any suitable carrier taken alone or in any suitable combination. Suitable carriers can include, for example, aqueous carriers that can include any suitable amount of water, for example, between about 25% by weight to about 97% by weight of water, between about. 30% to about 95% by weight of water, or between about 40% by weight to about 60% by weight. Suitable carriers can include solvents such as alcohols, polyols, or mixtures thereof. Illustrative alcohols include methanol, ethanol, propanol, and butanol. Illustrative polyols include polyalkyl glycols such as ethylene glycol, propylene glycol, butylene glycol, and glycerin. In some modalities, the carrier is water alone. In some embodiments, the carriers include aqueous solutions of solvents which may be present in any composition used in accordance with the method of the present invention, for example in an amount between about 25% by weight to about 97% by weight of solvent, about 30% by weight to about 95% by weight of solvent, or between about 40% by weight to about 60% by weight of solvent.

Suitable additional conditioning agents may include, for example, one or more amphoteric copolymers, one or more amphoteric terpolymers, one or more cationic conditioners and the like, and combinations thereof. Suitable conditioning agents may include amphoteric terpolymers of acrylic acid, diallyldimethylammonium chloride, and acrylamide. Any composition used according to the method of the present invention can include one or more additional conditioning agents in an amount, for example, between about 0.01% by weight to about 20% by weight, for example, between about 0.01% by weight up to about 15% by weight, or, for example, between about 0.05% by weight to about 10% by weight. An illustrative conditioning agent is polyquaternium-39, marketed under the tradename MERQUAT® PLUS 3330, available from Nalco Co. Other illustrative products that can serve as conditioning agents include polyquaternium-4 and / or copolymer 845-G VP / dimethylaminoethyl methacrylate.

Suitable surfactants may include, for example, one or more anionic, nonionic, cationic, and amphoteric surfactants, with nonionic, cationic, and amphoteric surfactants that are preferred. Exemplary surfactants include PPG-5 / Ceteth 20, Oleth-20, polysorbate-20, and cocamidopropylbetaine. Any composition used according to the method of the present invention, may include, one or more surfactants, in an amount between about 0.01% by weight to about 20% by weight, for example, between about 0.01% by weight up to about 15% by weight or for example, between about 0.05% by weight to about 10% by weight of one or more surfactants.

Any composition used according to the method of the present invention, may include other components that may be suitable for use in conventional hair styling compositions, such as, for example, conventional hair fixation gels, for fixation, of hair and / or hair grooming, rinses, emulsions (oil in water, water in oil or multiphase), lotions, creams, ointments, aerosols (pressurized or non-pressurized), injections, muses, foams, conditioners, and solids (for example, as thickeners, semisolids and the like).

If desired, any composition used according to the method of the present invention may include a propellant, for example, to dispense the composition (e.g., in the form of a mus or gel). Any composition may include, one or more propellants, in an amount, for example, between about 0.01% by weight to about 20% by weight, for example, between about 0.01% by weight to about 15% by weight, or for example , between about 0.05% by weight to about 10% by weight of one or more propellants. Illustrative propellants include propane, butane, and mixtures thereof.

In some embodiments, the method of the present invention for hair styling of the present invention exhibits an at least semi-permanent hair straightening after at least about three wash cycles comprising shampoo and conditioner treatments and after exposure for more than about 12 hours a ^ a high humidity environment, conditions including 90% relative humidity and temperature of approximately 24 ° C [75 ° F].

According to the method of the present invention, the keratinous fibers can be styled in any suitable way. In addition, any composition can be applied in any suitable manner, for example, by working the composition through the hair, for example, with the hands and fingers or with a suitable implement such as, for example, a comb or brush, to ensure a uniform coverage. In some embodiments, the hair may be optionally and partially dried after applying the poly (vinylamine-vinylformamide) copolymer composition and then an additional conditioning composition may be optionally contacted with the hair prior to the drying or shaping steps .

According to some embodiment of the present invention, heat is applied to hair treated with the composition. comprising the copolymer of poly (vinylamine-vinylformamide) or the hair treated with the composition comprising the copolymer of poly (vinylamine-vinylformamide) and the composition comprising the conditioning agent. The heat is applied in an effective amount to style the hair at least semi-permanent, and therefore the hair is styled at least semi-permanent. An effective amount of heat can be applied by contacting the hair with a styling device (e.g., iron plate, curling tongs, curling irons, etc.) at a temperature (e.g., the surface temperature of the portion). of the device that is in contact with the hair) of at least about 100 ° C for an effective period of time. If a styling device is used, the temperature of the device preferably ranges from about 190 ° C to about 240 ° C, from about 200 ° C to about 240 ° C, or from about 200 ° C to about 230 ° C. In some embodiments, heat is applied to the hair with a styling device at a temperature between approximately 438 ° F [225 ° C]. The heat can be applied for an effective period of time, for example, by contacting a hair section with a device for a suitable period of time (for example, for at least about 1 second). The heat may also be applied for an effective period of time, for example, by passing or removing a device '(eg, an iron plate) through a section of the hair (eg, along, for example , with a combing movement through the hair while the styling surface of the device remains in contact with at least a portion of the hair during each pass) at a suitable speed, for example, between about 2 seconds to about 10 seconds. It will be appreciated that the period of time required to bring the hair into contact with a styling device with heat, to style the semi-permanent hair according to the invention, may depend on several factors. These factors may include, for example, the nature and degree of chemical treatment on the hair, the type and condition of the hair involved, the length of the hair (which, of course, may impact the speed and period of time required for each pass to certain styling devices), the temperature of the device, the nature of the device, and other factors. A suitable heat styling method is disclosed in US 2007/0280896, which discloses a method for straightening hair by passing an iron plate at 193 ° C over the hair at least three times for 6-7 seconds each pass.

The styling of this form may include contacting the hair with a surface to shape to manipulate the hair so that it conforms to the shape of the surface. If desired, the heat can be applied directly to the hair by contacting the hair with a hot surface, which can also be used to stylize and manipulate the hair, to adapt it to the shape of the surface. In this way, in some modalities, the surface to shape is heated and the heat is applied to the hair with the surface to shape. If desired, the application of heat and styling can be carried out simultaneously. The heat can also be applied via an indirect heat source such as, for example, blow dryers, cap dryers, hat covers, vaporizers, and combinations thereof. In some modalities, it may be convenient to use a combination of direct or indirect heat sources. When a surface is used to shape, a straight surface can be used to straighten the hair and a curved surface can be used to curl the hair, or a combination of these surfaces can be used, if desired. Preferably, the heat can be applied in multiple stages or passes. These steps or passes may include applying heat to the hair and styling as described herein, at least twice, for example, to apply heat and manipulate the hair to conform to the shape of a surface with the intermediate removal of the hair. heat source between stages or passes. In this way, in some modalities, heat application and styling are performed two or more times. In other modalities, the application of heat and styling are performed three or more times. For example, when an iron plate is used to straighten the hair, two passes of the iron on (against) the hair can be made, and in some cases, three passes of the iron on (against) the hair can be made.

The present invention further provides a method for straightening the hair, which preferably includes contacting the hair with a composition comprising an amount effective to styling the hair of a copolymer of poly (vinylamine-vinylformamide), applying heat to the hair at a time. temperature of at least about 100 ° C for at least 1 second and apply a straight surface against the hair to straighten the hair at least semi-permanent.

The present invention further provides a method for curling the hair, the method comprising contacting the hair with an effective amount of a composition comprising an effective amount for straightening the hair of a copolymer of poly (vinylamine-vinylformamide), applying heat to the hair at a temperature of at least about 100 ° C for at least 1 second and apply a curved surface against the hair to curl the hair at least semi-permanent.

The present invention further provides a method for straightening the hair, which preferably includes contacting the hair with a composition comprising an amount effective to styling the hair of a copolymer of poly (vinylamine-vinylformamide), contacting the hair with a conditioning composition, and applying heat to the hair at a temperature of at least about 100 ° C for at least about 1 second and applying a straight surface against the hair to straighten the hair at least semi-permanent.

The present invention further provides a method of curling the hair, the method comprising contacting the hair with an effective amount of a composition comprising an effective amount for straightening the hair of a copolymer of poly (vinylamine-vinylformamide), contacting the hair with a conditioning composition, and applying heat to the hair at a temperature of at least about 100 ° C for at least about 1 second and applying a curved surface against to curl the hair at least semi-permanently.

The following examples further illustrate the invention although, of course, they should not be construed in any way as limiting its scope.

EXAMPLE 1 This example demonstrates a method for styling hair and evaluating the styling benefits of solutions containing different amounts of the poly (vinylamine-vinylformamide) copolymer compared to untreated hair. Four different solutions of the poly (vinylamine-vinylformamide) copolymer were prepared using Lupamin® 9095 at concentrations of 5% by weight, 10% by weight, 20% by weight, and 30% by weight. The solutions were then evaluated in this example by a selection method for 2.5 cm [1 inch] tufts for semi-permanent hair straightening which was conducted in three phases, which included (1) obtaining "the tufts, (2) applying the hair styling treatment compositions, and (3) washing the strands.

In the first phase, dry curly hair strands were obtained from International Hair Importers. Hair strands were formed into 7 inch long sections in 2.5 cm [1 inch] wide samples.

In the second phase, the tufts were contacted with a composition comprising a copolymer of poly (vinylamine-vinylformamide) and an aqueous carrier using 5 mL of the test solution for 5 minutes. After contacting the hair strands with the compositions, these strands were blow-dried for one minute until there was no moisture, ie approximately 80% dryness. A ceramic iron plant at a temperature of about 225 ° C [438 ° F] was applied to the lock of hair with three passes at a rate of about 5 seconds per pass in a one-quarter section of the lock with a comb smoothing after each pass, followed by three passes in the three full tufts. The hair strands were then allowed to hang at room temperature for a set period of time at a minimum of 48 hours.

In the third phase, the straightened hair strands were washed with warm tap water at about 35-40 ° C then at about 2650 cc / minute [0.7 gallons / minute]. Then they were applied to approximately 0.6 ml of a commercial shampoo and distributed over the strands from top to bottom, rubbing the product down and up three times on each side (front / back) with approximately 1 minute of time. Contact. The strands were placed in the palm of one hand and then rinsed for approximately 30 seconds. Similarly, about 1 ml of a commercial conditioner was applied to the tufts from top to bottom and was distributed by rubbing the conditioner from bottom to top three times on each side (front / back) with approximately 1 minute of time contact. The tufts were rinsed again for approximately 30 seconds under warm tap water. The tufts were then completely blown dry and allowed to hang for a minimum of 6 hours. The locks were subjected to five and ten more washes that repeated the wash described above when the hair was dried.

The tufts were contacted with the various compositions as summarized in Table B below. The method using the copolymer compositions of poly (vinylamine-vinylformamide) resulted in improved styling of the hair and more straightened hair maintained throughout the selection method compared to the control hair tufts without any solution.

Table B 5 fifteen EXAMPLE 2 This example demonstrates a method for styling the hair and evaluating the benefits of styling the copolymer composition of poly (vinylamine-vinylformamide) and a conditioning composition. The compositions were evaluated in this example by a selection method for 2.5 cm [1 inch] tufts for straightening semi-permanent hair that was conducted in three phases, which included: (1) obtaining the tufts, (2) applying the compositions of treatment for straightening the hair, and (3) washing the strands.

In the second phase, the tufts were washed with warm tap water at approximately 35-40 ° C which flowed at approximately 2650 cc / minute [0.7 gallons / minute]. Then they were applied to approximately 0.6 ml of a commercial shampoo and distributed over the strands from top to bottom, rubbing the product down and up three times on each side (front / back) with approximately 1 minute of time. Contact. The locks were placed in the palm of one hand and then rinsed for approximately 30 seconds and towel dried. The tufts were contacted with a composition of the poly (vinylamine-vinylformamide) copolymer which contained at about 5% by weight Lupamin® 9095, at about 50% by weight of denatured alcohol (ie, ethanol), and the rest that It will be deionized water. After contacting the hair strands with the composition for a period of about 10 minutes, the strands were blow-dried for up to three minutes until there was no moisture, ie about 80% dryness by weight. The tufts were then sprayed with a conditioning composition containing about 44% by weight of a combination of cyclohexasiloxane and cyclopentasiloxane, at approximately 51.9% by weight of denatured alcohol (ie, ethanol), approximately 3.9% by weight of alkyl (Ci2-) Ci5) benzoate, and about 0.2% by weight fragrance. A ceramic iron plate at a nominal temperature of approximately 225 ° C [438 ° F] was then applied to the hair strand with two passes at a rate of approximately 10 seconds per pass per section of a quarter with a comb smoothing afterwards. of each pass and one final pass, three passes on the complete lock. The hair fibers were unraveled when combing through the total lock, and applied again. the iron plate with two more passes with a comb after each pass to obtain strands of stylized and straightened hair. The hair strands were then allowed to hang at room temperature for a set period of time at a minimum of 24 hours.

In the third phase, strands of strained hair were washed with warm tap water at approximately 35-40 ° C which flowed at approximately 2650 cc / minute [0.7 gallons / minute]. Then about 1 cc of a commercial shampoo was applied and spread over the top-down tufts by rubbing the product down and up three times on each side (front / back) with approximately 1 minute of contact time. The strands were placed in the palm of one hand and then rinsed for approximately 30 seconds. Similarly, about 1 cc of a commercial conditioner was applied onto the tufts from top to bottom and was distributed by rubbing the conditioner down and up three times in each row (front / back) with approximately 1 minute of contact time. The tufts were rinsed again for approximately 30 seconds under warm tap water. The strands were then hung to dry with air. The tufts were then subjected to four more washings that repeated the wash described above when the hair was dried.

The method using the copolymer compositions of poly (vinylamine-vinylformamide) in combination with the conditioning composition kept the hair straightened which lasted through the five shampoo / conditioner treatments. As seen in figure 1 and figure 2, the method for styling of example 2, provided results in which the hair strands maintained the styling, that is, the straightening, which lasted through the five treatments with shampoo / conditioner.

All references, including publications, patent applications, and patents, cited herein are incorporated herein by reference to the same extent as if each reference had been individually and specifically indicated to be incorporated by reference and is shown in its entirety. at the moment.

The use of the terms "one", "an" and "the" and similar referents in the context to 'describe the invention (especially in the context of the following claims) will be construed to cover both the singular and the plural, a unless stated otherwise in the present or would be clearly stated by context. The terms "comprising", "having", "including", and "containing" shall be interpreted as open terms (ie, with the meaning of "including, but not limited to") unless that is observed in another way. The mention of variations of values herein is simply intended to serve as a shorthand method to individually reference each separate value that falls within the variation, unless otherwise indicated herein, and each value separately is incorporated in the specification as if it were mentioned here individually. All methods described herein may be performed in any suitable order unless otherwise indicated herein or are contradicted by context clearly in another manner. The use of any or all of the examples, or illustrative language (eg, "such as") provided herein, is intended merely to better illuminate the invention and has no limitation on the scope of the invention unless claimed otherwise. way. No language in the specification should be interpreted as indicative of any element not claimed as essential to the practice of the invention.

Preferred embodiments of this invention are described herein, including the best mode known to the inventors of carrying out the invention. Variations of those preferred embodiments will be apparent to those of ordinary skill in the art upon reading the foregoing description. The inventors expect the skilled artisans to employ these variations as appropriate, and the inventors claim that the invention is practiced otherwise than as specifically described herein. Therefore, this invention includes all modifications and equivalents of the material mentioned in the appended claims thereto as permitted by applicable law. In addition, any combination of the elements described above in all possible variations thereof is encompassed by the invention unless "otherwise indicated herein or otherwise contradicted by context.

Claims

NOVELTY OF THE INVENTION Having described the present invention, it is considered as a novelty and, therefore, the content of the following is claimed as property CLAIMS:

1. A method for styling the hair, the method characterized in that it comprises contacting the hair with a composition comprising an effective amount for styling the hair of a copolymer of poly (vinylamine-vinylformamide), applying heat to the hair in an amount effective to Styling the hair at least semi-permanently, and styling to comb the hair at least semi-permanently.

2. The method in accordance with the claim 1, characterized in that the heat is applied at a temperature of at least about 100 ° C for at least about 1 second.

3. The method in accordance with the claim 2, characterized in that the heat is applied at a temperature of between about 190 ° C to about 240 ° C for at least about 1 second.

4. The method according to any of claims 2-3, characterized in that the heat is applied for approximately 10 seconds.

5. The method according to claim 1, characterized in that the hair is contacted with the composition for between about 1 minute to about 20 minutes.

6. The method according to claim 1, characterized in that the styling comprises straightening the hair.

7. The method according to claim 1, characterized in that the styling comprises curling the hair.

8. The method according to claim 1, characterized in that the styling comprises contacting the hair with a surface to shape to manipulate the hair so that it adapts to the shape of the surface.

9. The method according to claim 8, characterized in that the surface for shaping is heated and the heat is applied to the hair with the surface for shaping.

10. The method according to any of claims 8-9, characterized in that the surface for shaping comprises a straight surface for straightening the hair, a curved surface for curling the hair, or a combination thereof.

11. The method according to any of claims 8-9, characterized in that the surface for shaping is selected from iron plate surfaces, curling tongs surfaces, hair curlers, hair straighteners, hair tubes, and combinations thereof. the same.

12. The method according to claim 1, characterized in that the heat is applied via an indirect source of heat.

13. The method according to claim 12, characterized in that the indirect source of heat is selected from blow dryers, cap dryers, heating covers, vaporizers, and combinations thereof.

14. The method according to claim 1, characterized in that the heat is applied via an indirect source of heat and the stylization comprises contacting the hair with a surface to shape to manipulate the hair so that it adapts to the shape of the surface .

15. The method according to claim 1, characterized in that the composition is practically free of carbohydrates or analogues thereof.

16. The method according to claim 1, characterized in that the composition comprises between about 2% by weight to about 50% by weight of the copolymer of poly (vinylamine-vinylformamide).

17. The method according to claim 16, characterized in that the composition comprises between about 4% by weight to about 30% by weight of the copolymer of poly (vinylamine-vinylformamide).

18. The method according to claim 1, characterized in that the composition further comprises an aqueous carrier.

19. The method according to any of claims 1 or 18, characterized in that the composition further comprises a solvent.

20. The method in accordance with the claim 19, characterized in that the solvent is selected from the group consisting of alcohols, polyols, and combinations thereof.

21. The method in accordance with the claim 20, characterized in that the solvent comprises an alcohol.

22. The method in accordance with the claim 21, characterized in that the alcohol is ethanol.

23. The method according to claim 20, characterized in that the solvent comprises a polyol.

24. The method according to claim 23, characterized in that the polyol is selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol, glycerin, and combinations thereof.

25. The method according to claim 1, characterized in that the composition further comprises a polyvinylpyrrolidone.

26. The method according to claim 1, characterized in that the copolymer of poly (vinylamine-vinylformamide) comprises a copolymer of poly (vinylamine-vinylformamide) of high molecular weight.

27. The method in accordance with the claim 26, characterized in that the copolymer of poly (vinylamine-vinylformamide) of high molecular weight comprises at most about 95 mol% of vinylamine monomers.

28. The method in accordance with the claim 27, characterized in that the copolymer of poly (vinylamine-vinylformamide) of high molecular weight comprises at most about 50 mol% of vinylamine monomers.

29. The method according to claim 1, characterized in that the copolymer of poly (vinylamine-vinylformamide) comprises a copolymer of poly (vinylamine-vinylformamide) of high molecular weight, a copolymer of low molecular weight poly (vinylamine-vinylformamide) or a combination of them.

30. The method according to claim 1, characterized in that the composition is in the form of a mus or a gel.

31. The method according to claim 1, characterized in that the application of heat and stylization occur simultaneously.

32. The method according to any of claims 8-9, characterized in that the application of heat and styling are carried out two or more times.

33. The method according to claim 32, characterized in that the application of heat and styling are carried out three or more times.

34. The method according to claim 1, characterized in that it also comprises the step of contacting the hair with a conditioning composition.

35. The method in accordance with the claim 34, characterized in that the conditioning composition comprises a silicone.

36. The method in accordance with the claim 35, characterized in that the silicone is a cyclomethicone.

37. The method according to claim 34, characterized in that the conditioning composition comprises an alcohol.

38. A method for straightening the hair, the method characterized in that it comprises contacting the hair with a composition comprising an effective amount for styling the hair of a copolymer of poly (vinylamine-vinylformamide), and contacting the hair with a device for styling comprising at least one flat surface at a temperature of at least about 100 ° C for at least about 1 second to straighten the at least semi-permanent hair.

39. The method according to claim 38, characterized in that it further comprises the step of contacting the hair with a conditioning composition.

40. The method in accordance with the claim 34, characterized in that the conditioning composition comprises a silicone.

41. The method in accordance with the claim 35, characterized in that the silicone is a cyclomethicone.

42. The method according to claim 34, characterized in that the conditioning composition comprises an alcohol.

43. A method for curling hair, the method characterized in that it comprises contacting the hair with an effective amount of a composition: comprising an effective amount for straightening the hair of a copolymer of poly (vinylamine-vinylformamide), and contacting the hair with a styling device comprising at least one curved surface at a temperature of at least 100 ° C for at least about 1 second to curl at least semi-permanent hair.

44. A method for straightening the hair, the method characterized in that it comprises contacting the hair with a composition comprising an effective amount for styling the hair of a copolymer of poly (vinylamine-vinylformamide), contacting the hair with a conditioning composition, and contacting the hair with a styling device comprising at least one flat surface at a temperature of at least about 100 ° C for at least about 1 second to straighten the at least semi-permanent hair.