EP2838491A2 - Zusammensetzung enthaltend hydroxyethylcellulose - Google Patents

Zusammensetzung enthaltend hydroxyethylcellulose

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Publication number
EP2838491A2
EP2838491A2 EP13701377.7A EP13701377A EP2838491A2 EP 2838491 A2 EP2838491 A2 EP 2838491A2 EP 13701377 A EP13701377 A EP 13701377A EP 2838491 A2 EP2838491 A2 EP 2838491A2
Authority
EP
European Patent Office
Prior art keywords
component
skin
composition
composition according
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13701377.7A
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German (de)
English (en)
French (fr)
Inventor
Marcel Veeger
Ute Wollenweber
Markus Hemming
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Deb IP Ltd
Original Assignee
Deb IP Ltd
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Filing date
Publication date
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Publication of EP2838491A2 publication Critical patent/EP2838491A2/de
Withdrawn legal-status Critical Current

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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
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A61K8/731—Cellulose; Quaternized cellulose derivatives
    • 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
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • 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
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • 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
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • 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
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • 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
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/39—Derivatives containing from 2 to 10 oxyalkylene groups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/30—Characterized by the absence of a particular group of ingredients
    • A61K2800/31—Anhydrous
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/59—Mixtures
    • A61K2800/591—Mixtures of compounds not provided for by any of the codes A61K2800/592 - A61K2800/596

Definitions

  • composition containing hydroxyethylcellulose relates to compositions containing hydroxyethylcellulose, in particular water-free or anhydrous compositions, which can preferably be used as skin and / or hand cleansing agents, in particular for the removal of stubborn skin contaminants.
  • Skin and hand cleansers are used extensively in industry, especially where stubborn stains caused by paints, greases, oils, lubricants, metal dusts, graphite, soot and the like. be caused.
  • cleaning agents are known in particular as so-called coarse hand cleaners (compare H. Tronnier, J. Kresken, K. Jablonski, B. Komp, "Skin and Work", Grosse Verlag, Berlin, pp. 75-108 [1989]).
  • coarse hand cleaners usually preparations containing an abrasive, surfactant / surfactant mixtures, thickeners, and optionally adjuvants to control consistency, appearance, odor, and stability, such as pigments, perfumes, stabilizers, and preservatives.
  • organic solvents e.g. aliphatic hydrocarbons, terpenes, carboxylic acid esters, in particular dibasic esters (DBE), of the dimethyl adipate, dimethyl glutarate, dimethyl succinate and di-n-butyl adipate or diisopropyl adipate, as described in DE 43 35 933 A1.
  • organic solvents e.g. aliphatic hydrocarbons, terpenes, carboxylic acid esters, in particular dibasic esters (DBE), of the dimethyl adipate, dimethyl glutarate, dimethyl succinate and di-n-butyl adipate or diisopropyl adipate, as described in DE 43 35 933 A1.
  • waterless cleaner available on the market, whose good cleaning action is based primarily on the aforementioned organic solvents, in particular gasolines, kerosene, short-chain paraffin oils.
  • Such agents are in terms of their cleaning effect in the so-called "Grobhandrillian Scheme", ie as a means of removing extreme contaminants in terms of their cleaning effect quasi as a standard cleaner with the result that skin and hand cleanser without DBE skin cleansing reinforcing component must have an at least comparable skin cleansing effect, in order to find consumer acceptance for its intended use.
  • EP 1 504 081 B1 describes skin and hand cleansing compositions based on fatty acid methyl ester.
  • a disadvantage of the skin and hand cleansers described in this document is that these skin and hand cleansers contain 10 to 80 wt .-% water. This not only leads to a reduced cleaning performance, but there is a risk of hydrolysis and the increased oxidation, in particular the methyl ester in these aqueous formulations, which is associated with a reduction in the shelf life of such skin and hand cleansers.
  • compositions are independent of the selection of the packaging units (glass, HDPE, LDPE bottles and dispenser bottles with LDPE outer layer, adhesion promoter and PA inner layer) by the addition of hydrophobicized cellulose derivatives to known formulations for skin and hand cleansers ) can be significantly improved.
  • the skin and hand cleansers according to the invention have the advantage that their stability is almost independent of the selection of the packaging units (glass, HDPE, LDPE bottles and dispenser bottles with LDPE outer layer, adhesion promoter and PA inner layer). Even after the expiry of a three-month stability test, the skin and hand cleansing compositions according to the invention had a homogeneous texture.
  • the compositions according to the invention also have the advantage that, in the case of an optional use of rubbing particles in the skin and hand cleansing agent, settling thereof in the formulation is prevented.
  • compositions according to the invention are easy to produce in terms of production technology.
  • compositions of the invention preferably have a flash point> 100 ° C and preferably a vapor pressure at 20 ° C of ⁇ 0.01 hPa. In this way it can be ensured that the coarse hand cleaner does not ignite even in production halls with high ambient temperatures and existing solvents remain in the composition, so that even after prolonged storage (3 months), the effectiveness of the composition and its consistency does not or only insignificantly affected becomes.
  • composition according to the invention makes it possible to use heat-treated instead of bleached (walnut) shelled flour, so that the composition according to the invention can be produced in a more environmentally compatible manner overall.
  • compositions according to the invention are described below by way of example, without the invention being restricted to these exemplary embodiments.
  • ranges, general formulas, or classes of compounds are intended to encompass not only the corresponding regions or groups of compounds explicitly mentioned, but also all sub-regions and sub-groups of compounds obtained by removing individual values (ranges) or compounds can be.
  • documents are cited in the context of the present description, their content, in particular with regard to the matters referred to, should form part of the disclosure content of the present invention. If the following information is given as a percentage, it is, unless stated otherwise, in% by weight. If mean values are given below, this is the number average, unless otherwise stated. Are below material properties such. As viscosities or the like Unless stated otherwise, these are the properties of the material at 25 ° C.
  • composition according to the invention in particular suitable for cleaning the skin and / or hands, is characterized in that it contains the components:
  • h. optionally further cosmetic auxiliaries, additives and / or active ingredients, and i.) 0.1 to 20 wt .-% hydroxyethylcelluose, in which on average from 1, 0 to 2.9 of the d-glucopyranose unit present 3 OH groups are replaced by ethoxy groups, wherein the sum of components a.) To i.) 100 wt .-%, based on the composition results.
  • the alkyl esters of component a. B. be synthetically produced fatty acid alkyl esters, for example those which can be obtained as reaction products of fatty acids with aliphatic alcohols or alternatively by way of transesterification of natural or synthetic fats and oils, wherein in fatty acid alkyl esters derived from naturally occurring oils, these for the cosmetic use preferably according to industrially processed or purified.
  • Fatty acid alkyl esters of component a Preferably have the general formula (I), namely R 1 CO-OR 2 (I), in which R 1 CO for a linear or branched, saturated and / or unsaturated acyl radical having 6 to 22, in particular 8 to 22, preferably 12 to 22 carbon atoms and R 2 is an alkyl radical having 1 to 8 carbon atoms, in particular represents an alkyl radical having 1 to 4 carbon atoms and particularly preferably represents a methyl radical.
  • R 1 CO for a linear or branched, saturated and / or unsaturated acyl radical having 6 to 22, in particular 8 to 22, preferably 12 to 22 carbon atoms
  • R 2 is an alkyl radical having 1 to 8 carbon atoms, in particular represents an alkyl radical having 1 to 4 carbon atoms and particularly preferably represents a methyl radical.
  • Preferred fatty acid alkyl esters are, for example, methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, tert. Butyl, pentyl, hexyl, or 2-ethylhexyl, preferably methyl or isopropyl, preferably methyl esters, in particular those of caproic, caprylic, capric, lauric, myristic, palmitic, palmitoleic, stearic, isostearic, oleic, elaidic, linoleic, linolenic , Gadoleic acid, arachidonic acid, behenic acid and erucic acid and their technical mixtures.
  • Preferred fatty acid methyl esters, fatty acid isopropyl esters and fatty acid 2-ethylhexyl esters according to the invention are e.g. B. from the company. Cognis under the trade name TEXAPRINT® available.
  • fatty acid esters are used according to the invention as component a), which can be derived from so-called “vegetable oils", such as.
  • vegetable oils such as.
  • fatty acid methyl esters as component a.
  • the component a.) May also be diesters, especially those of the general formula (II)
  • Preferred diesters are, in particular, dimethyl adipate, dimethyl glutarate, dimethyl succinate (DBE), di-n-butyl adipate, diisopropyl adipate or dimethyl 2-methyl glutarate.
  • the alkyl esters and / or diesters of component a.) Can be used alone or as mixtures, particular preference being given to those mixtures which contain exclusively methyl ester and / or dimethyl ester as component a).
  • compositions according to the invention preferably contain from 5 to 90% by weight, preferably from 10 to 65% by weight and more preferably from 25 to 65% by weight, based on the total composition, of component a).
  • the fatty alcohol ethoxylates which can be used as component b.) Preferably have the general formula
  • R saturated, unsaturated, branched or branched alkyl
  • n integer from 1 to 1 1.
  • the composition according to the invention is preferably 1 to 40 wt .-%, preferably 5 to 30 and particularly preferably 10 to 30 wt .-% based on the total composition of component b).
  • the compositions according to the invention contain from 5 to 35% by weight, based on the composition, of laureth-6 as component b).
  • a thixotropic agent is understood to mean an agent which is suitable for increasing the yield strength of a disperse system, such as, for example, an abrasive-containing cosmetic formulation.
  • thixotropic agents are known, for example, for a variety of applications as “rheological additives", in particular for the production of paints and coatings, as so-called “Anti-settling agent” act.
  • rheological additives in particular for the production of paints and coatings, as so-called “Anti-settling agent” act.
  • These are, for example, bentonites, kaolins, alginic acid, but also the industrially important Si0 2 modifications, such as silica and diatomaceous earth, and silica gels.
  • Si0 2 modifications such as silica and diatomaceous earth
  • silica gels silica gels.
  • such thixotropic agents are also responsible for the formation of a solid so-called "house of cards gel structure”.
  • hydrophilic fumed silica in addition to a thixotropic agent.
  • hydrophilic surfaces are the measurement of the contact angle between water and the surface of the silica. The size of the contact angle between water and solid depends on the interaction between the substances at the interface and the lower this interaction, the greater the contact angle. If the contact angle is less than 90 °, one speaks of hydrophilic surfaces [Thieme Römpp Online, document identifier RD-08-02255, Georg Thieme Verlag, 2012]. The contact angle can be determined, for example, with a contact angle measuring device from Krüss GmbH.
  • Hydrophilic pyrogenic silicic acids are preferably very finely divided silicas which can thus be incorporated homogeneously into the final formulation, ie, SiO 2 modifications which have been prepared by flame hydrolysis.
  • the material is wetted by water and can be dispersed in water.
  • the present invention employed the hydrophilic fumed silicas of component c.) are for example available under the trade name AEROSIL ® at Evonik Industries AG and include use in coatings and paints for optimum rheology or for thickening non-polar liquids, such as fats and oils.
  • compositions of the invention preferably comprise> 0.1%% by weight, in particular 0.5 to 5.0 wt .-%, based on the total composition of a hydrophilic fumed silica, wherein the under the trade name AEROSIL ® 200 at Evonik Industries AG available, are particularly preferred.
  • the thixotropic agents of component c.) are preferably from 0.5 to 10% by weight, preferably from 0.5 to 7.5 and particularly preferably from 2 to 6% by weight, based on the total composition, in the compositions according to the invention contain.
  • Preferred thixotropic agents are organophilic and / or hydrophobic phyllosilicates, in particular bentonites, preferably those in which the inorganic cations of natural bentonites, e.g. Na-bentonite are replaced by organic radicals, in particular quaternary ammonium cations, as for example in the bentonites, which are sold by the company Rockwood Clay Additives, Moosburg, Germany under the trade name TIXOGEL®.
  • Such organic bentonites can be characterized, for example, by determining their loss on ignition at 1000 ° C., which can be regarded as a meaningful parameter for the ratio of organic residue / bentonite ratio.
  • the loss on ignition includes the total organic content of the bentonite as well as the chemically bound water of the bentonite (about 8% for pure bentonite). It has now been found that bentonites, which have a loss on ignition of max. 30 wt .-% in combination with a hydrophilic, fumed silica in an anhydrous, solvent-based skin and hand cleansers ensure sufficient stability, so that product instabilities were no longer visible.
  • the organobontonites preferably have an ignition loss of at least 8% by weight, preferably at least 10% by weight.
  • stearalkonium bentonites with an ignition loss of max. 100% are particularly preferred according to INCI nomenclature. 29% such as stearalkonium bentonites, which can be obtained under the trade name TIXOGEL® LG-M from the company. Rockwood Clay Additives GmbH, Moosburg, Germany and have a loss on ignition of about 28 wt .-%. Such stearalkonium bentonites are preferably present in an amount of> 0.5% by weight, based on the total composition and more preferably> 2% by weight, in the compositions according to the invention. It was surprising that such stearalkonium bentonites, which have a loss on ignition of max.
  • the skin and hand cleansers of the present invention exhibit a very good cleaning effect, nevertheless the skin and hand cleansers may optionally contain abrasives as optional component d.)
  • the proportion of the abrasive or abrasives in the composition is then preferably from> 0 to 30 wt .-%, preferably 5 to 30 wt .-% and particularly preferably from 5 to 25 wt .-% based on the composition.
  • the compositions according to the invention may comprise all abrasives known for hand and / or skin cleansers.
  • Abrasiva both inorganic Abrasiva, such as sand, pumice, calcium carbonate or kaolin and organic abrasives can be used.
  • suitable organic abrasives are polyethylene or polyurethane-based plastic abrasives, water-swellable solid particles of organic polymers, abrasives based on natural core, shell and / or shell flours, in particular walnut shell, almond shell, hazelnut shell, olive kernel and apricot kernels and cherry and corn meal or any mixtures of these shell and core flours or beads of waxes, such as jojoba wax, are used.
  • shell and / or core flours known from the prior art, with hydrogen peroxide bleached flours or heat treated flours can be used.
  • Heat-treated flours are preferably used, in particular those as described in WO 201 1/051083.
  • the abrasive composition of the invention comprises walnut shell meal, and more preferably heat-treated walnut shell meal, in particular such as described in WO 201 1/051083. It may be advantageous if two or more of the abovementioned abrasives are present as a mixture in the composition according to the invention as component d).
  • the composition according to the invention as abrasives alone or in combination with other abrasives, preferably in combination with walnut shell flour, water-swellable solid particles of organic polymers of natural and / or synthetic origin, which coagulate and redeposit the can prevent dissolved or emulsified dirt when using the funds.
  • Suitable organic polymers based on modified natural products are, for example, the products based on starch and cellulose, which may be modified by grafting, preferably with acrylic derivatives.
  • acrylic derivatives are, for example, (meth) acrylic acid and its salts, (meth) acrylonitrile, (meth) acrylamide and the (meth) acrylic esters, as well as the partial saponification products of these acrylic derivatives.
  • Synthetic organic polymers are the homopolymers and copolymers, in particular the abovementioned acrylic derivatives. These are essentially crosslinked polyacrylic acids or crosslinked starch / acrylic acid graft copolymers in which the carboxyl groups can be partially neutralized with sodium or potassium ions. As comonomers, the polymers acrylamidopropanesulfonic acid, vinylphosphonic acid, vinylsulfonic acid,
  • abrasives are preferred in the form of water-swellable polymers which are obtained by polymerization of the components aa.) 55 to 99.95% by weight of monomers carrying monoethylenically unsaturated carboxyl groups,
  • ком ⁇ онент aa.) which carry monoethylenically unsaturated carboxyl groups are in this context monoethylenically unsaturated C 3 to C 10 monocarboxylic acids and their alkali metal and / or ammonium and / or amine salts. These monomers include, for example, acrylic acid, methacrylic acid, dimethacrylic acid, ethylacrylic acid, crotonic acid, isocrotonic acid, vinylacetic acid and allylacetic acid.
  • acrylic acid, methacrylic acid or their alkali metal or ammonium salts or mixtures thereof are used as preferred monomers, with acrylic acid and its sodium, potassium or ammonium salts being particularly preferred as monomers.
  • Further monomers carrying monoethylenically unsaturated carboxyl groups are also the monoethylenically unsaturated C 4 to C 8 dicarboxylic acids, their anhydrides or their alkali metal and / or ammonium and / or amine salts.
  • Suitable dicarboxylic acids are maleic acid, fumaric acid, itaconic acid and methylenemalonic acid, of which maleic acid, maleic anhydride, itaconic acid, itaconic anhydride and the corresponding sodium, potassium or ammonium salts of maleic acid or itaconic acid are preferred.
  • Monoethylenically unsaturated carboxyl group-carrying monomers are also the hydrolysates of (meth) acrylonitrile copolymers and of starch (meth) acrylonitrile graft copolymers, hydrolyzates of (meth) acrylamide copolymers and saponification products of (meth) acrylic acid copolymers with ethylenically unsaturated esters as carboxylate-containing polymer.
  • the acidic, polymerized monomer components of the water-swellable polymers are preferably at least 25 mol.% And preferably at least 50 mol.% And more preferably at least 75 mol.% Neutralized and are, as described above, for example, as a sodium, potassium or ammonium salt or mixtures thereof.
  • crosslinking agents of component bb. are usually used compounds which have at least two ethylenically unsaturated double bonds or one ethylenically unsaturated double bond and one acid group-reactive functional group or more acidic group-reactive functional groups.
  • Preferred crosslinking agents are those containing at least two ethylenically unsaturated double bonds, such as.
  • methylenebisacrylamide or -methacrylamide or ethylenebisacrylamide further esters of unsaturated mono- or polycarboxylic acids of polyols, such as diacrylates or triacrylates, z.
  • butanediol or ethylene glycol acrylate or methacrylate trimethylolpropane triacrylate, and preferably having from 1 to 30 moles of ethylene oxide
  • allyl compounds and their alkoxylates such as allyl (meth) acrylate their alkoxylates, allyl 3 (EO) i o (meth) acrylate, triallyl cyanurate ,
  • Compounds which have at least one acid group-reactive functional group are, for example, the N-methylol compounds of amides, such as methacrylamide or acrylamide and the ethers derived therefrom, but also di- and polyglycidyl compounds are mentioned here.
  • the crosslinking agents may be used alone or in combination in amounts of from 0.05 to 5.0% by weight, preferably from 0.05 to 2.0% by weight and more preferably from 0.1 to 1.0% by weight. , based on the monomers used.
  • Such comonomers may include, for example, (meth) acrylamide, (meth) acrylonitrile, vinylpyrrolidone, vinylacetamide, 2-acrylamido-2-methylpropanesulfonic acid, vinylsulfonic acid, (meth) allylsulfonic acid, hydroxyethylacrylate, alkylpolyethyleneglycol (meth) acrylates, alkylaminoalkyl (meth) acrylates, alkylaminopropylacrylamides, acrylamidopropyltrimethylammonium chloride or their mixtures.
  • Such comonomers should not exceed a proportion of 40% by weight, since they are the Swelling ability of the resulting water-swellable polymer may optionally affect.
  • the water-swellable polymers may contain water-soluble polymers as component dd.) As a graft base, which are optionally contained in amounts of up to 30 wt .-%.
  • water-soluble polymers include, but are not limited to, partially or fully hydrolyzed polyvinyl alcohols, polyacrylic acids, polyglycols or mixtures thereof, polysaccharides such as e.g. Starch or starch derivatives, cellulose or cellulose derivatives but also polycarboxypolysaccharides. The latter are derived either from polysaccharides, which do not contain any carboxyl groups by nature, and are provided with carboxyl groups by subsequent modification or they contain naturally carboxyl groups and are optionally subsequently provided by modification with further carboxyl groups.
  • the first group of polysaccharides includes, for example, starch, amylose, amylopectin, cellulose and polygalactomannans, such as guar and locust bean gum
  • the second group includes e.g. Xanthans, alginates, gum arabic etc.
  • the carboxyl groups are, as already mentioned, either present by the inherent molecular structure, for example by uronic acid units in the polysaccharide molecule or are incorporated by subsequent modification with carboxyl group-containing reagents or generated by oxidation reactions.
  • carboxylalkyl derivatives are preferred, especially the carboxymethyl derivatives.
  • oxidized starches and their derivatives are particularly preferred.
  • Polycarboxypolysaccharides may be modified in addition to the carboxyl groups with other groups, in particular those which improve the water solubility, for example hydroxyalkyl, in particular hydroxyethyl groups, and phosphate groups.
  • Particularly preferred polycarboxypolysaccharides are carboxymethylguar, carboxylated hydroxyethyl or hydroxypropylcellulose, carboxymethylcellulose and carboxymethyl starch, oxidized starch, carboxylated phosphate starch, xanthan and mixtures of the individual polycarboxypolysaccharides.
  • carboxymethyl cellulose is preferably used.
  • Polycarboxypolysaccharide derivatives having low and high levels of carboxyl substitution are useful. Usually, however, they have an average degree of carboxyl substitution in the range of 0.3 to 1.5, with polycarboxypolysaccharide derivatives having a degree of substitution in the range of 0.4 to 1.2 preferably being used.
  • the molecular weights of the polymers added as the graft base are preferably adapted to the conditions of the polymerization conditions. So it can be e.g. in the case of aqueous solution polymerization, it is necessary to use only low or medium molecular weight polymers, while this factor plays only a minor role in suspension polymerization.
  • water-swellable polymers can be improved by the process of subsequent surface crosslinking in their property profile.
  • the carboxyl groups of the polymer molecules on the surface of the water-swellable polymer particles are crosslinked with crosslinking agents at elevated temperature.
  • crosslinking agents compounds are used which have at least two functional groups and which can crosslink the functional groups of the polymer at the surface of the polymer particles.
  • alcohol, amine, aldehyde, glycidyl, epichloro and isocyanate functions are preferred, wherein crosslinking molecules with a plurality of different functions, but also polyvalent metal salt compounds can be used.
  • postcrosslinkers are: ethylene glycol, diethylene glycol, triethylene glycol, glycerol, polyglycerol, propylene glycol, diethanolamine, triethanolamine, sorbitan fatty acid esters, trimethylolpropane, pentaerythritol, polyvinyl alcohol, sorbitol, ethylene carbonate, propylene carbonate, polyepoxides such as ethylene glycol diglycidyl ether, aziridines and polyisocyanates. Preference is given to using ethylene carbonate as a postcrosslinking agent.
  • the postcrosslinkers are used in an amount of 0.01 to 10 wt.%, Preferably 0.1 to 5 wt.%, particularly preferably 0.1 to 1.5% by weight, based on the polymer to be postcrosslinked, wherein optionally the subsequent surface crosslinking can be repeated several times.
  • acrylic acid alone or mixtures thereof is preferred.
  • Water-swellable abrasives which are obtainable by the company Evonik Industries, Krefeld (Germany) under the trade name Favor® T 5056 F are preferred according to the invention. Particular preference is given to water-swellable polymers acting as abrasives as component d) and heat-treated walnut shell flour which can likewise be obtained from Evonik Industries Krefeld under the name ASTOPON®.
  • compositions according to the invention may optionally contain as component e.) 0 to 5 wt .-%, preferably 0.5 to 2.5 wt .-% of at least one physiologically acceptable carbonic acid ester, ie a carbonic acid ester, which is acceptable for cosmetic applications have.
  • the composition of the invention contains propylene carbonate as a physiologically acceptable carbonic acid ester.
  • anhydrous compositions in particular skin and / or hand cleansing or the use of Stearalkoniumbentonite with a Loss on ignition of max.
  • the skin and hand cleansers of the invention are preferably anhydrous or low in water or contain only 0 to ⁇ 10 wt .-% as component f.).
  • Particularly preferred skin and hand cleansers are anhydrous and contain at least 10% by weight of the corresponding methyl esters of the alkyl esters and / or diesters of the invention as component a.) And at least 5% by weight of fatty alcohol ethoxylate as component b.), Preferably laureth-6.
  • the skin and hand cleansing compositions according to the invention have as thickening agents i) hydroxyethylcellulose, in which on average preferably from 1.5 to 2.9, preferably from 2.0 to 2.7, and preferably 2.5, of the d-glucopyranose unit present 3 OH groups are replaced by ethoxy groups.
  • Suitable hydroxyethyl cellulose can be obtained, for example, The Dow Chemical Company under the name ETHOCEL ®. Particularly suitable is the product ETHOCEL ® Standard 20 industrial by The Dow Chemical Company.
  • the content of hydroxyethyl cellulose in which 1, 0 to 2.9 of the 3 OH groups present per d-glucopyranose unit are replaced by ethoxy groups is preferably from 1 to 10 in the skin and / or hand cleansing compositions according to the invention Wt .-%, preferably 2 to 5 wt .-% and particularly preferably 3 to 4 wt .-% based on the total mass of the skin and / or hand cleaning agent according to the invention.
  • the skin and hand cleansing compositions according to the invention may optionally contain one or more viscosity-forming agents as component g.)
  • viscosity-forming agents such as, for example, polysaccharides such as cellulose, guar gum and / or xanthans, modified polysaccharides, preferably cellulose ethers, carboxyalkylcellulose and / or hydroxyalkylcelluloses, preferably hydroxyethylcellulose and / or or inorganic Electrolytes, preferably sodium chloride and / or magnesium sulfate, with the proviso that these viscosity-forming agents of component i) are different.
  • the skin and hand cleansing compositions according to the invention may optionally contain further cosmetic auxiliaries, additives and / or active substances, for example pH regulators, stabilizers, preferably cetearyl alcohol and / or hydrogenated castor oils, such as, for example, Trihydroxystearin, fragrances, preservatives, preferably organic acids and antioxidants, e.g. Vitamin E acetate as component h.).
  • further cosmetic auxiliaries for example pH regulators, stabilizers, preferably cetearyl alcohol and / or hydrogenated castor oils, such as, for example, Trihydroxystearin, fragrances, preservatives, preferably organic acids and antioxidants, e.g. Vitamin E acetate as component h.
  • oily or aqueous care components such as e.g. Bisabolol, aloe vera, panthenol, sodium PCA, jojoba oil, creatine etc. are used to emphasize the care effect.
  • hydrophilic emollients such as e.g. Partial glycerides or oils by which a significantly increased skin care effect can be observed.
  • Very good care effects are e.g. with Polyglycerylpartialestern, as described in DE 10 2007 022 693, achieved.
  • customary cosmetic over or moisturizing agents such as e.g. Isooctylstearate be used to minimize the skin drying effects, in particular by the use of the solvents used.
  • hydrogenated castor oil such as e.g.
  • RHEOCIN® Rockwood Clay Additives, Moosburg, Germany
  • other waxes as stabilizing agent, preferably 0.5 to 5 wt .-%, particularly preferably 0.5 to 3 wt .-%, based on the total composition of the cleaning agent, in particular not only to achieve stabilization at different storage temperatures, but also to achieve the necessary thermal stability of the cosmetic formulations, especially at 40 ° C.
  • compositions according to the invention in particular skin and hand cleansers, preferably coarse hand cleansers, preferably takes place by means of known devices in a batch or continuous process, the skin and hand cleansers preferably being obtained as creamy agents or as flowable viscous pastes.
  • Suitable devices are temperature-controlled boilers with stirrer, continuous mixers such as extruders and dispersers.
  • compositions of the invention may preferably z. B. are used as skin and / or hand cleanser, especially as a water-resistant or anhydrous skin and / or hand cleanser. More preferably, the composition of the invention is used as a skin and / or hand cleanser to remove stubborn soils.
  • compositions according to the invention as skin and / or hand cleansing agents can be carried out, for example, by first distributing the composition on the skin without water and then wiping it off with a cloth, preferably a disposable article made of paper, plastic or textile fabric etc., without water , An application with the help of water is also possible. The product is rinsed off together with the dirt.
  • compositions according to the invention can be used, in particular, for the removal of coarse soilings which are strongly adhering to the skin, such as, for example, fats, oils and other lubricants, paints, lacquers, tar, graphite, carbon black, colored pigments and similar substances, for example in the industrial and public sectors, occur in the craft, in agriculture as well as in the household.
  • the compositions of the invention are particularly advantageous in the cleaning of the most persistent paint contaminants, in which case the cleaning agent should contain at least 10% by weight of component b), in particular of fatty alcohol ethoxylates, based on the composition.
  • the stability test was carried out in accordance with the IFSCC Monograph 1992 Number 2 "The Fundamentals of Stability Testing", where Chapter IV page 8 describes "Standard Test Conditions", which served as the basis for the stability tests.
  • the standard test conditions in Chapter IV.i.a were used at 4 ° C, RT and 40 ° C over a period of 3 months.
  • the agents have been characterized in terms of their cleaning effect on a paint and in terms of their stability.
  • compositions of skin and hand cleansing compositions according to the invention are given in the following Table 1 under the formulations 1 to 4.
  • Comparative formulations not according to the invention are formulations 5 and 6.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Emergency Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Dermatology (AREA)
  • Cosmetics (AREA)
  • Detergent Compositions (AREA)
EP13701377.7A 2012-02-06 2013-01-10 Zusammensetzung enthaltend hydroxyethylcellulose Withdrawn EP2838491A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012201668A DE102012201668A1 (de) 2012-02-06 2012-02-06 Zusammensetzung enthaltend Hydroxyethylcellulose
PCT/EP2013/050370 WO2013117375A2 (de) 2012-02-06 2013-01-10 Zusammensetzung enthaltend hydroxyethylcellulose

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EP2838491A2 true EP2838491A2 (de) 2015-02-25

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US (1) US9155692B2 (enExample)
EP (1) EP2838491A2 (enExample)
JP (1) JP2015511939A (enExample)
CN (1) CN104519859A (enExample)
AU (1) AU2013218287B2 (enExample)
CA (1) CA2863428A1 (enExample)
DE (1) DE102012201668A1 (enExample)
NZ (1) NZ627717A (enExample)
SG (2) SG11201404659WA (enExample)
WO (1) WO2013117375A2 (enExample)

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CN108210359A (zh) * 2018-04-13 2018-06-29 苏州锐耐洁电子科技新材料有限公司 一种免水洗型手部清洁剂
EP3954743A1 (de) 2020-08-12 2022-02-16 Evonik Operations GmbH Verwendung von siliziumdioxid zur verbesserung der leitfähigkeit von beschichtungen

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Publication number Publication date
US9155692B2 (en) 2015-10-13
JP2015511939A (ja) 2015-04-23
DE102012201668A1 (de) 2013-08-08
WO2013117375A3 (de) 2015-01-22
SG11201404659WA (en) 2014-11-27
US20150011451A1 (en) 2015-01-08
CA2863428A1 (en) 2013-08-15
SG10201609113PA (en) 2016-12-29
WO2013117375A2 (de) 2013-08-15
CN104519859A (zh) 2015-04-15
AU2013218287B2 (en) 2017-07-27
NZ627717A (en) 2015-09-25
AU2013218287A1 (en) 2014-09-25

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