Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/67—Vitamins
  • A61K8/676—Ascorbic acid, i.e. vitamin C
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair

Definitions

• the present invention relates to the use of reducing aliphatic or cyclic compounds as a means for hardening, strengthening and improving the structure (restructuring) of materials containing keratin, in particular damaged keratin fibers, and for increasing the volume of fibers containing keratin, in particular human hair.
• the present invention further relates to a method for hardening, strengthening and improving the structure (restructuring) of materials containing keratin, and to a method for increasing the volume of fibers containing keratin.
• keratin fibers for example human
• a common method for measuring the degree of damage to hair is the tensile strength measurement.
• the force that is required to break individual hairs is measured with a tension-strain measuring device.
• the so-called bundle tensile strength (BZF) is determined from these individual tensile strength measurement values, which differ from one another due to the different hair diameters, by first calculating the tensile strength for a hair diameter of 0.08 mm (average diameter) from the individual values, taking into account the respective hair diameter. By including the hair density, it is finally converted into the unit of bundle tensile strength (cN / tex). The greater the numerical value of the tensile strength or the bundle tensile strength, the less the hair damage.
• the object underlying the present invention was to provide a preparation, in particular a cosmetic preparation, which eliminates the aforementioned disadvantages.
• this object is achieved by using a preparation comprising at least one reducing aliphatic or cyclic compound containing the atom grouping
• EP-PS 0 401 454 proposes to remove residues of hydrogen peroxide which remain in human hair after an oxidative treatment with an aqueous solution of ascorbic acid. Effervescent tablets containing ascorbic acid are suitable for this, which are dissolved in water immediately before use, which is then used for hair rinsing.
• ascorbic acid is used in DE-OS 1 444 216 in a liquid hair dye in order to make the otherwise unstable liquid agent stable.
• the oxidation hair dye according to DE-OS 3 642 097 also contains ascorbic acid as a stabilizer. It was all the more surprising to find that ascorbic acid can be used to improve the structure (hardening, strengthening, restructuring) of materials containing keratin, in particular fibers containing keratin, for example human hair.
• the use according to the invention can also have advantageous effects in the case of conditions or changes in the structure of keratin-containing materials which are caused by physiological processes. For example, age-related brittle keratin-containing material (hair or nails) or fine hair, which can be congenital or acquired depending on age (baby hair, aging hair).
• composition stands.
• the present invention thus relates to the use of at least one reducing aliphatic or cyclic compound, individually or as a mixture, containing the atom grouping
• Epimeric and tautomeric forms are included as isomeric forms of these atomic groupings contained in the relevant aliphatic and cyclic compounds.
• reductones are preferably used.
• the present invention also includes a method for hardening, strengthening and restructuring keratin-containing materials and / or for increasing the volume of keratin-containing fibers, which is characterized in that a composition comprising at least one reducing aliphatic or cyclic compound containing the atomic grouping
• Ascorbic acid or isoascorbic acid or its salts or esters for example 6-O-palmitoyl ascorbate, ascorbyl phosphate, hydroxypropanedial (triose reductone), 2,3-dihydroxy-2-cyclopenten-1-one (reductic acid), for example, can advantageously be used for the purposes mentioned ), or mixtures of these compounds, can be used.
• the use of ascorbic acid or isoascorbic acid, especially ascorbic acid is preferred.
• the free acid can also be obtained in situ from the salts, for example the alkali metal ascorbates or alkaline earth metal ascorbates or the alkali metal isoascorbates or alkaline earth metal isoascorbates, by adding a physiologically tolerated acid (for example citric acid, oxyacetic acid, glyoxylic acid, 2-acid acid, 2-acid acid, 2-acid acid), be generated.
• a physiologically tolerated acid for example citric acid, oxyacetic acid, glyoxylic acid, 2-acid acid, 2-acid acid, 2-acid acid
• the calcium salt, the magnesium salt and the sodium salt of ascorbic acid or isoascorbic acid are suitable as ascorbic acid salts or isoascorbic acid salts.
• any combinations of the reducing aliphatic and / or cyclic compounds mentioned can also be used for the purpose mentioned. It is preferred to use a combination of ascorbic acid or isoascorbic acid or its salts or esters, for example 6-O-palmitoyl-ascorbic acid, ascorbyl phosphate,
• Hydroxypropanedial triose reductone
• 2,3-dihydroxy-2-cyclopenten-1-one reductic acid
• mixtures of these compounds for hardening, strengthening, structural improvement (restructuring) and volume increase of materials which contain structure-damaged keratin, in particular fibers containing keratin, for example Hair.
• the reducing aliphatic and / or cyclic compound on which the invention is based is covered with a protective layer.
• cellulose-coated or silicone-coated compounds are suitable.
• 0.3 to 50 percent by weight, in particular 0.5 to 10 percent by weight, of the reducing aliphatic and / or cyclic compound in question can be used as preferred amounts.
• composition described for the use according to the invention can be present in all suitable formulations which are known in the cosmetic or pharmaceutical industry.
• the composition can be present as an aqueous or aqueous-alcoholic solution, as a gel, cream, emulsion or foam, the composition can be made up both in the form of a one-component preparation and in the form of a multi-component preparation.
• the composition can contain at least one reducing aliphatic and / or cyclic compound according to the present invention (for example ascorbic acid, isoascorbic acid, sodium ascorbate) together with suitable auxiliaries and carriers (for example thickeners, acids, fragrances, solvents, salts, wetting agents, UV absorber).
• composition is in the form of a multi-component preparation, this can consist of at least two different components that are spatially separated from one another until use.
• a first component can either contain the reducing aliphatic and / or cyclic compound (active ingredient) on which the present invention is based on its own or the active ingredient can be used together with an auxiliary (for example a thickener), advantageously in solid dry form (for example as a powder in compressed or non-compressed form, as granules or tablets), mixed in this first component.
• auxiliary for example a thickener
• a second or further component contains only auxiliaries and carriers.
• a multi-component preparation can be advantageous with regard to handling and stability (storage stability) of the active substances on which the invention is based.
• the invention also includes the use of a composition which is characterized in that it is present as a one-component preparation or as a multiple-component preparation, the composition of the single-component preparation containing at least one reducing aliphatic and / or cyclic compound together with auxiliaries and additives, and the composition in the multicomponent preparation comprises a first component which contains at least one reducing aliphatic and / or cyclic compound with or without auxiliaries and additives and that a second component contains only auxiliaries and excipients or wherein the composition in the multicomponent preparation comprises at least three different components, where at least two of them contain at least one different reducing aliphatic and / or cyclic compound and that at least one further component contains only auxiliaries and additives lt.
• the composition according to the invention can also be made up as tablets - also effervescent tablets - or granules.
• the composition is then prepared from this before use with cold or warm water, optionally with the addition of one or more of the auxiliaries mentioned below.
• these auxiliaries if they are in solid form
• these auxiliaries are already contained in the powder or granules or the effervescent tablet.
• composition on which the invention is based can include additional auxiliaries, such as, for example, solvents such as water, lower aliphatic alcohols, for example ethanol, n-propanol and isopropanol, glycol ethers or glycols such as glycerol and in particular 1,2-propanediol, and also wetting agents or emulsifiers from the classes of anionic, cationic, amphoteric or non-ionic surface-active substances such as fatty alcohol sulfates, ethoxylated fatty alcohol sulfates, alkyl sulfonates, alkyl benzene sulfonates,
• Alkyltrimethylammonium salts alkylbetaines, ethoxylated fatty alcohols, ethoxylated nonylphenols, fatty acid alkanolamides, ethoxylated fatty alcohols, ethoxylated nonylphenols, fatty acid alkanolamides, ethoxylated fatty acid ester, also thickeners such as higher fatty alcohols, starch or cellulose derivatives, thiols, ketocarboxylic acids (oxo carboxylic acids), in particular ⁇ -ketocarboxylic acids or their physiologically tolerable Contain salts, UV absorbers, perfumes, dyes, hair pretreatment agents, conditioners, hair swelling agents, preservatives, petroleum jelly, paraffin oil and fatty acids as well as care substances such as cationic resins, lanolin derivatives, cholesterol, pantothenic acid and betaine.
• thickeners such as higher fatty alcohols, starch or cellulose derivatives, thiols
• the pH of the composition is preferably about 1.8 to 7.0, in particular 3.0 to 6.5.
• the desired pH can be obtained by adding further acids, for example ⁇ -hydroxycarboxylic acids such as lactic acid, tartaric acid, citric acid or malic acid, phosphoric acid, acetic acid, glycolic acid, salicylic acid, glutathione or gluconic acid lactone, or else alkalizing agents such as Alkanolamines, alkylamines, alkali hydroxides, ammonium hydroxides, alkali carbonates, ammonium carbonates or alkali phosphates can be adjusted.
• ⁇ -hydroxycarboxylic acids such as lactic acid, tartaric acid, citric acid or malic acid, phosphoric acid, acetic acid, glycolic acid, salicylic acid, glutathione or gluconic acid lactone
• alkalizing agents such as Alkanolamines, alkylamines, alkali hydroxides, ammonium hydroxides, alkal
• the composition can either remain at the application site, that is to say after it has been brought into contact with the material to be treated with keratin, or can be removed again after a contact time of between one minute and approximately one hour at a temperature between 20 ° C. and approximately 60 ° C.
• the process depends on the nature of the material to be treated and can therefore be varied.
• the composition can also remain there (for example in the hair) or be rinsed out after use.
• the exposure time of the composition is 1 to 60 minutes, in particular 5 to 20 minutes, depending on the temperature (about 20 to 50 degrees Celsius), the repair effect (hardening, restructuring, possibly the associated increase in volume) being accelerated by adding heat and after the exposure time, the hair is rinsed with water and, if necessary, washed with a shampoo.
• the composition according to the invention can also be used as a pretreatment agent before hair coloring or before a permanent wave treatment in order to prevent hair damage from these oxidative treatments.
• Component A ascorbic acid 5.00 g
• Methylhydroxyethylcellulose (Tylose MHB 10.000P from Hoechst / FRG) 1.50 g
• Component B citric acid 5.00 g
• Trisodium citrate dihydrate 0.80 g
• Components A and B were combined and shaken well.
• the resulting gel was allowed to act on a bleached strand of hair at 40 ° C for 15 minutes under a plastic cover.
• the bundle tensile strength was then compared with an otherwise untreated bleached strand.
• the bundle tensile strength in cN / tex was as follows:
• Component A is a compound having Component A:
• Component B is a compound having Component B:
• Components A and B were combined and shaken well. The cure was allowed to act on a bleached strand of hair at 40 degrees C for 15 minutes under a plastic cover. The bundle tensile strength was then compared with an otherwise untreated bleached strand. The bundle tensile strength in cN / tex was as follows:
• Methylhydroxyethylcellulose (Tylose MHB 10.000P from Hoechst / FRG) 1.50 g
• Trisodium citrate dihydrate 0.30 g
• Methylhydroxyethylcellulose (Tylose MHB 10.000P from Hoechst / FRG) 1.50 g water ad 100.00 g
• the pH was adjusted to pH 3.0 to 6.0 with trisodium citrate dihydrate.
• Methylhydroxyethylcellulose (Tylose MHB 10.000P from Hoechst / FRG) 1.50 g
• Component A is a compound having Component A:
• Component B is a compound having Component B:
• Components A and B were combined and shaken well. The resulting solution was sprayed onto the hair, combed and left there.
• Methylhydroxyethylcellulose (Tylose MHB 10.000P from Hoechst / FRG) 1.50 g
• the pH was adjusted to 3.0 to 6.0 with trisodium citrate dihydrate.
• Citric acid 7.40 g trisodium citrate dihydrate 1.00 g
• Citric acid 7.40 g
• Trisodium citrate dihydrate 0.60 g
• Citric acid 7.40 g
• Trisodium citrate dihydrate 1.00 g hydroxyethyl cellulose 1.50 g
• Component A is a compound having Component A:
• Component B is a compound having Component B:
• Components A and B were combined and shaken well. The cure was allowed to act on the hair at 40 degrees C for 15 minutes.

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• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Birds (AREA)
• Epidemiology (AREA)
• Cosmetics (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

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• 1999
  • 1999-03-25 DE DE19913427A patent/DE19913427A1/de not_active Ceased
• 2000
  • 2000-03-08 EP EP00912566A patent/EP1079793A1/de not_active Withdrawn
  • 2000-03-08 US US09/700,871 patent/US6482808B1/en not_active Expired - Fee Related
  • 2000-03-08 JP JP2000607590A patent/JP2002540128A/ja active Pending
  • 2000-03-08 BR BR0005546-8A patent/BR0005546A/pt not_active Application Discontinuation
  • 2000-03-08 WO PCT/EP2000/002003 patent/WO2000057839A1/de active Application Filing

Non-Patent Citations (1)

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