WO2012048816A1 - Laminat mit verbessertem wasserretentionsverhalten - Google Patents
Laminat mit verbessertem wasserretentionsverhalten Download PDFInfo
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- WO2012048816A1 WO2012048816A1 PCT/EP2011/004983 EP2011004983W WO2012048816A1 WO 2012048816 A1 WO2012048816 A1 WO 2012048816A1 EP 2011004983 W EP2011004983 W EP 2011004983W WO 2012048816 A1 WO2012048816 A1 WO 2012048816A1
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- Prior art keywords
- water
- laminate
- soluble polymer
- soluble
- film
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0216—Solid or semisolid forms
- A61K8/0233—Distinct layers, e.g. core/shell sticks
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0208—Tissues; Wipes; Patches
-
- 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
- A61K8/22—Peroxides; Oxygen; Ozone
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- 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
- A61K8/23—Sulfur; Selenium; Tellurium; 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
- A61K8/38—Percompounds, e.g. peracids
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- 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
- A61Q5/08—Preparations for bleaching the hair
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
- D06N7/0094—Fibrous material being coated on one surface with at least one layer of an inorganic material and at least one layer of a macromolecular material
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2203/00—Macromolecular materials of the coating layers
- D06N2203/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N2203/042—Polyolefin (co)polymers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2203/00—Macromolecular materials of the coating layers
- D06N2203/06—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06N2203/061—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2205/00—Condition, form or state of the materials
- D06N2205/04—Foam
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1607—Degradability
- D06N2209/1621—Water-soluble, water-dispersible
Definitions
- Active substance-containing, water-soluble polymer films are known (for example from EP-A-0 450 141, WO 98/026764, WO 00/018365, US-A-2001/006677, WO 02/002085, WO 04/060298 or WO 05 / 009386).
- active ingredients are dissolved or dispersed in a polymer or a polymer solution, and this solution or dispersion is formed into films with or without the aid of a flat support, then dried and separated from the optionally used support and formulated into salable products.
- Known polymer films of this type are z.
- the technology described can be used advantageously.
- the combination of active ingredient and polymer is not able to store a sufficient quantity of water for the overall dissolution or to make it available for a sufficient amount of time.
- the active substance in dissolved or solid form
- has yet to be activated before use eg carbonates for generating carbon dioxide, for example for foaming
- these activation is not left to the user without risk but may already be provided in the ready-to-use drug-containing polymer film in any form.
- persulfates for example for hair bleaching
- carbamide peroxide or hydrogen peroxide it can not be left to the user to spray the polymer-film-bound persulfate before application, for example, with a carbamide peroxide solution
- the activator should expediently already be provided with the active ingredient in "kit form", so that it only has to be triggered by the user.
- a “laminate” is the composite of two or more flat, ie two-dimensional films (referred to above and below as “layer”) with only small thickness, usually in each case 10 to 5000 pm (preferably 50 to 1000 ⁇ , particularly preferably 100 to 800 ⁇ ) understood, wherein the composite of the films is such that it does not delaminate under product-typical treatment (eg., When kinking or opening) (delamination> 5 N / mm in the 180 ° T-Peeltest [15 mm Laminate width, 1 cm / s peel rate].)
- Such laminates are produced, for example, by coextrusion through a multi-layer die, by combining two or more pre-produced film webs with or without adhesion promoter (eg adhesive) between two or more webs or by coating For example, extrusion coating on one or both surfaces of a pre-produced film web, or by any combination of the methods described.
- a layer is a film-like constituent of the laminate according to the invention (see definition: laminate, above).
- an active substance is understood as meaning a substance which causes a cosmetic or pharmaceutical action in humans or animals, or which as a result of a chemical reaction undergoes a chemical or physical change to itself (for example the release of a gas) or with the substance Active substance in contact medium (eg skin, enamel, hair) causes (eg pH change, oxidation).
- active substance in contact medium eg skin, enamel, hair
- examples include: surfactants, detergents, skin care products, bleaching agents, pH regulators, dietary supplements, but also pharmaceutical agents.
- the activator also belongs to the category of active ingredients, but in its function is tuned to the "active substance" to be activated and causes it to develop its activity.
- exemplary “drug-activator pairs” are: carbonates (acids), peroxides-water, polymer cross-linkers, monomer initiators, enzyme prodrugs etc.
- film-forming water-soluble polymers for example PVA, PVP, polysaccharides, etc.
- excipients such as plasticizers, surface-active substances, dyes, perfumes, sweeteners, flavorings, flavoring agents, disintegrants and the like.
- Water-soluble polymers dissolve in water to at least 90% by weight, preferably 95% by weight (measurement conditions: 10 g of polymer in particle form [d 5 o: between 500 and 5000 ⁇ m] in 200 ml of H 2 0, 25 ° C with stirring [200-1000 rpm], 30 min, filtration through white band filter (filter group 2), determination of the residue by differential weighing.) The possibly present residue is usually undissolved, swollen polymer.
- Nonwovens, knitted fabrics and woven fabrics are made of polymer fibers according to methods familiar to the person skilled in the art, the fiber polymer being a water-soluble polymer (eg, PVA, PVP, polysaccharides, etc.).
- the foam sheets of the present invention are also made from water-soluble polymers, usually by first dissolving the polymer in water and then introducing a gas into the polymer solution, the solution foaming. Subsequently, the air bubble-containing mass (the foam) is spread on a suitable substrate as a film or layer and subsequently dried. By solvent removal, the foam solidifies during drying to form an airgel, the resulting cavities receive a permanent structure.
- Such foams and their preparation are described, for example, in DE-A-100 32 456, to which reference is expressly made at this point.
- the active ingredient-containing, water-soluble polymer film of the present invention contains as essential constituents a water-soluble polymer or a combination of water-soluble polymers and an active ingredient and optionally one or more plasticizers and / or surfactants.
- Such films are described for example in DE-A-196 46 392, to which reference is expressly made at this point.
- the polymers used for the film include hydrophilic and / or water-soluble polymers such as cellulose derivatives, hydroxypropylmethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, polyvinylpyrrolidone, polyvinyl alcohol, sodium alginate, polyethylene glycol, natural gums such as xanthan gum, tragacanth, guar gum, acacia gum, gum arabic, water dispersible Polyacrylates such as polyacrylic acid, Methylmethacrylatcopolymere, Carb oxyvinylcopolymere.
- Preferred polymers are polyvinyl pyrrolidone and polyvinyl alcohol.
- the concentration of the water-soluble polymer in the finished film is typically between 2 and 70% by weight, preferably between 5 and 50% by weight. A particularly preferred concentration is about 20 wt .-%.
- non-ionic surface-active substances are substances that are commercially available as solids or liquids in pure form because of their ease of processing.
- the definition of purity in this context does not refer to chemically pure compounds. Rather, especially when it comes to natural-based products, mixtures of different homologs can be used, for example with different alkyl chain lengths, as obtained in products based on natural fats and oils. Even with alkoxylated products, mixtures of different degrees of alkoxylation are usually present.
- purity in this context refers rather to the fact that the selected substances should preferably be free from solvents, adjuvants and other impurities.
- Preferred nonionic surfactants are:
- Alkoxylated fatty alcohols having 8 to 22, in particular 10 to 16, carbon atoms in the fatty alkyl group and 1 to 30, in particular 1 to 15, ethylene oxide and / or propylene oxide units.
- Preferred fatty alkyl groups are, for example, lauryl, myristyl, cetyl, but also stearyl, isostearyl and oleyl groups.
- Particularly preferred compounds of this class are, for example, lauryl alcohol with 2 to 4 ethylene oxide units, oleyl and Cetyl alcohol having in each case 5 to 10 ethylene oxide units, cetyl and stearyl alcohol and mixtures thereof with 10 to 30 ethylene oxide units and the commercial product Aethoxal ® B (Henkel), a lauryl alcohol with 5 ethylene oxide and 3 propylene oxide units.
- the alkoxy group has no OH group at the end but is closed in the form of an ether, in particular a C 1 -C 4 -alkyl ether ".
- An example of such a compound is the commercially available product ® Dehypon LT 054, a C12 -18- Fettalkoholol + 4,5-ethylene-butyl ether.
- Alkoxylated fatty acids having 8 to 22, in particular 10 to 16, carbon atoms in the fatty acid group and 1 to 30, in particular 1 to 15, ethylene oxide and / or propylene oxide units.
- Preferred fatty acids are, for example, lauric, myristic, palmitic, stearic, isostearic and oleic acids.
- preferred compounds are glyceryl monolaurate + 20 ethylene oxide and glycerol monostearate + 20 ethylene oxide.
- Polyglycerol esters and alkoxylated polyglycerol esters are for example poly (3) glycerol diisostearate (commercial product: Lameform ® TGI (Henkel)) and poly (2) glycerinpolyhydroxystearat (commercial product: Dehymuls ® PGPH (Henkel)).
- Sorbitan fatty acid esters and alkoxylated sorbitan fatty acid esters such as sorbitan monolaurate and sorbitan monolaurate + 20 ethylene oxide (EO).
- Alkylphenols and alkylphenol alkoxylates having 6 to 21, in particular 6 to 15, carbon atoms in the alkyl chain and 0 to 30 ethylene oxide and / or propylene oxide units.
- Preferred representatives of this class are, for example, nonylphenol + 4 EO, nonylphenol + 9 EO, octylphenol + 3 EO and octylphenol + 8 EO.
- nonionic surfactants are the alkoxylated fatty alcohols, the alkoxylated fatty acids and the alkylphenols and alkylphenol alkoxylates.
- the total concentration of surfactants in the final film depends on the properties of the other ingredients, but is desirably between 0.1 and 5% by weight.
- Softeners which can be used according to the invention are in particular polyalcohols.
- polyhydric alcohols include glycerol, polyethylene glycol, propylene glycol, glycerol monoesters with fatty acids or other pharmaceutically used polyhydric alcohols and also dexpanthenol, a trihydroxyamide.
- concentration of the optionally present plasticizer in the dry mass of the film is usually 0.1 to 15 wt .-%.
- Useful therapeutic agents include: hypnotics, sedatives, anti-epileptics, weckamines, psychoneurotropics, neuro-muscle blockers, antispasmodics, antihistaminics, antiallergics, cardiotonics, antiarrhythmics, diuretics, hypotensives, vasopressors, antitussives, expectorants, thyroid hormones, sex hormones, anti-diabetics , Antitumor drugs, antibiotics and chemotherapeutica and narcotics.
- the amount of active ingredient to be incorporated in the film depends on its nature and is usually between 0.01 and 20 wt .-%, but it may, if necessary to achieve the desired effect, higher or lower.
- Cosmetic agents include skin care agents such as dexpanthenol, hair care products such as shampoos, breath fresheners such as menthol, other flavorings, fragrances or fragrances commonly used for oral hygiene, and / or oral care and / or oral hygiene ingredients such as quaternary ammonium bases.
- the effect of flavorings and flavors can be enhanced by flavor enhancers such as tartaric acid, citric acid, vanillin or the like.
- Other cosmetic active ingredients are bleaching agents such as carbamide peroxide, as used in dental hygiene, or persulfates for bleaching hair.
- the active ingredient-containing, water-soluble polymer film may contain one or more alkalizing agents, optionally in the form of coated particles.
- the alkalizing agent is used to adjust an alkaline pH.
- Alkaliating agents such as ammonium, alkali metal and alkaline earth metal hydroxides, carbonates, bicarbonates, silicates, in particular metasilicates and alkali metal phosphates can be used according to the invention.
- Short-chain amines such as monoethanolamine, 3-amino-2-methylpropanol or alkaline-reacting amino acids such as arginine, ornithine and lysine can also be used.
- the particulate alkalizing agents comprise particles having a particulate core of solid alkalizing agents selected from alkali metal carbonates, phosphates and / or silicates.
- Particularly preferred alkalizing agents according to the invention are alkali metal silicates, in particular metasilicates.
- the active ingredient-containing, water-soluble polymer films according to the invention comprise at least two different alkalizing agents.
- mixtures of, for example, a metasilicate and a hydroxycarbonate may be preferred.
- the active substance-containing, water-soluble polymer films according to the invention contain alkalizing agents (calculated as uncoated alkalizing agent) preferably in amounts of from 1 to 50% by weight, in particular from 15 to 35% by weight, based in each case on the layer of the active substance-containing, water-soluble polymer film.
- alkalizing agents calculated as uncoated alkalizing agent
- the laminate according to the invention is used as a bleaching film for bleaching hair.
- a layer of the laminate preferably the active ingredient-containing, water-soluble polymer film, contains a bleaching agent.
- Blonding agents preferably contain a peroxo compound.
- the selection of this peroxo compound is in principle not limited.
- Preferred peroxo compounds are hydrogen peroxide (H 2 O 2 ), for example in the form of an aqueous solution or in the form of an H 2 O 2 adduct to solid supports, with urea perhydrate or sodium carbonate peroxohydrate (“sodium percarbonate") being of particular importance
- H 2 O 2 hydrogen peroxide
- other peroxo compounds may also be included in laminate layers.
- Typical peroxo compounds known to the person skilled in the art are, for example, ammonium peroxodisulfate, potassium peroxodisulfate, sodium peroxodisulfate, ammonium persulfate, potassium persulfate, sodium persulfate, potassium peroxydiphosphate, percarbonates such as magnesium percarbonate, peroxides such as barium peroxide and perborates, urea peroxide and melamine peroxide.
- the inorganic compounds are preferred according to the invention. Particularly preferred are the peroxodisulfates, in particular combinations of at least two peroxodisulfates.
- Preferred laminate layers are therefore characterized in that they additionally contain a solid peroxo compound, which is preferably selected from hydrogen peroxide addition compounds to solid supports, ammonium and alkali metal persulfates and peroxodisulfates, with particularly preferred layers containing at least two different peroxodisulfates.
- a solid peroxo compound which is preferably selected from hydrogen peroxide addition compounds to solid supports, ammonium and alkali metal persulfates and peroxodisulfates, with particularly preferred layers containing at least two different peroxodisulfates.
- the peroxo compounds are present in the laminate layer according to the invention, in particular the active substance-containing, water-soluble polymer film, preferably in amounts of from 2 to 80% by weight, in particular in amounts of from 20 to 45% by weight.
- nonionic polymers such as vinylpyrrolidinone A inyl acrylate copolymers, polyvinylpyrrolidinone and vinylpyrrolidinone / vinyl acetate copolymers and polysiloxanes,
- cationic polymers such as quaternized cellulose ethers, polysiloxanes with quaternary groups, dimethyldiallylammonium chloride polymers, acrylamide Dimethyldiallyl-ammonium chloride copolymers, diethyl sulfate-quaternized dimethylamino-ethyl methacrylate-vinylpyrrolidone copolymers, vinylpyrrolidinone-imidazolinium methochloride copolymers and quaternized polyvinyl alcohol,
- zwitterionic and amphoteric polymers for example acrylamidopropyltrimethylammonium chloride / acrylate copolymers and octylacrylamide / methyl methacrylate / tert-butylaminoethyl methacrylate / 2-hydroxypropyl methacrylate copolymers,
- anionic polymers such as, for example, polyacrylic acids, crosslinked polyacrylic acids, vinyl acetate / crotonic acid copolymers, vinylpyrrolidone nonA inyl acrylate copolymers, vinyl acetate / butyl maleate / isobornyl acrylate copolymers, methyl vinyl ether / maleic anhydride copolymers and acrylic acid / Ethyl acrylate / N-tert-butyl acrylamide terpolymers,
- Thickeners such as agar-agar, guar gum, alginates, xanthan gum, gum arabic, karaya gum, locust bean gum, linseed gums, dextrans, cellulose derivatives, e.g. For example, methylcellulose, hydroxyalkylcellulose and carboxymethylcellulose, starch fractions and derivatives such as amylose, amylopectin and dextrins, clays such. As bentonite or fully synthetic hydrocolloids such. For example, polyvinyl alcohol,
- Structurants such as glucose, maleic acid and lactic acid
- hair-conditioning compounds such as phospholipids, for example soya lecithin, egg lecithin and kephaine, and also silicone oils
- Protein hydrolysates in particular elastin, collagen, Kerstin, milk protein, soy protein and wheat protein hydrolysates, their condensation products with fatty acids and quaternized protein hydrolysates,
- Solvents and mediators such as ethanol, isopropanol, ethylene glycol, propylene glycol, glycerol and diethylene glycol,
- fiber-structure-improving active ingredients in particular mono-, di- and oligosaccharides such as, for example, glucose, galactose, fructose, fructose and lactose,
- Active ingredients such as panthenol, pantothenic acid, allantoin, pyrrolidonecarboxylic acids and their salts,
- quaternized amines such as methyl-1-alkylamidoethyl-2-alkylimidazolinium methosulfate
- Antidandruff active ingredients such as Piroctone olamine, zinc omadine and climbazole, light stabilizers, in particular derivatized benzophenones, cinnamic acid derivatives and triazines,
- Substances for adjusting the pH such as conventional acids, in particular edible acids and bases,
- Active ingredients such as allantoin, pyrrolidonecarboxylic acids and their salts, and bisabolol,
- Vitamins, provitamins and vitamin precursors in particular those of groups A, B3, B5, B6, C, E, F and H,
- Plant extracts such as extracts of green tea, oak bark, nettle, witch hazel, hops, chamomile, burdock root, horsetail, hawthorn, lime blossom, almond, aloe vera, spruce needle, horse chestnut, sandalwood, juniper, coconut, mango, apricot, lime, wheat, kiwi , Melon, orange, grapefruit, sage, rosemary, birch, mallow, meadowfoam, quenelle, yarrow, thyme, melissa, toadstool, coltsfoot, marshmallow, meristem, ginseng and ginger root,
- Bodying agents such as sugar esters, polyol esters or polyol alkyl ethers,
- Fats and waxes such as spermaceti, beeswax, montan wax and paraffins,
- Complexing agents such as EDTA, NTA, ⁇ -alaninediacetic acid and phosphonic acids, swelling and penetrating substances such as glycerol, propylene glycol monoethyl ether, carbonates, bicarbonates, guanidines, ureas and primary, secondary and tertiary phosphates,
- Opacifiers such as latex, styrene / PVP and styrene / acrylamide copolymers, pearlescing agents such as ethylene glycol mono- and distearate and PEG-3-distearate, pigments
- Stabilizers for hydrogen peroxide and other oxidizing agents include propellants such as propane-butane mixtures, N 2 U, dimethyl ether, CO 2 and air, antioxidants,
- FIG. 1 shows the structure of the laminate according to the invention of the active substance-containing, water-soluble polymer layer (1), the water retention layer (2) and the optionally present carrier layer (3).
- the active substance-containing, water-soluble film (1) can be prepared as follows:
- the active ingredient as well as optional surfactants, optional plasticizers, disintegrants and other optional ingredients other than the water-soluble polymer (s) are dissolved or dispersed with a sufficient amount of a compatible solvent.
- a compatible solvent include water, alcohols such as ethyl alcohol, esters such as ethyl acetate, ketones such as acetone, ethers such as diethyl ether, tetrahydrofuran (THF), dimethylformamide (DMF), dimethylsulfoxide DMSO or mixtures thereof.
- the water-soluble polymer or mixture of water-soluble polymers is slowly added with stirring and, if necessary, heat until a homogeneous solution or a homogeneous pasty mass is formed.
- the mass can also be prepared without the use of solvents.
- the mass obtained is then conveniently applied to a support (3) and dried to a film.
- the support material must have a surface tension which allows the polymer solution or mass to be distributed uniformly over the intended coating width without the solution / mass being sucked in, thus creating a destructive bond between the support and the coating.
- suitable materials include metal foils such as aluminum foils, non-siliconized polyethylene terephthalate films, non-siliconized kraft paper, polyethylene-impregnated kraft paper, or non-siliconized polyethylene film.
- the order of the solution or mass on the carrier material (3) can be performed with any conventional device.
- a particularly preferred application technique relates to a roll doctor coating machine.
- the thickness of the resulting film layer depends on the concentration of the solids in the coating solution or mass and on the gap width of the coating machine and can vary between 5 and 5000 ⁇ m.
- the drying of the film is z. B. in a hot air bath using a drying oven, drying tunnel, vacuum dryer or other suitable drying devices that do not adversely affect the effect of the drug.
- the film - including carrier film or after separation from the carrier film - further processed or cut or made easier to better ease of use directly into pieces of suitable size and shape.
- the second layer (2) of the laminate according to the invention consists of a water-soluble polymer, wherein the layer of this polymer is designed so that it has an increased water retention capacity. This can be done, for example, by constructing the layer of staple fibers of the water-soluble polymer in the form of a nonwoven or corresponding fibers of the water-soluble polymer to corresponding knitted fabrics or fabrics are processed.
- the thicknesses of the nonwovens, knitted fabrics or fabrics used according to the invention vary between 5 and 1000 ⁇ m, preferably 10 to 500 ⁇ m and particularly preferably 20 to 200 ⁇ m. They have expediently basis weights of 5 to 1000 g / m 2 , preferably 10 to 500 g / m 2 , particularly preferably 20 to 200 g / m 2 .
- nonwovens particularly from PVA, such as those from the company Freudenberg (Weinheim, Germany) under the name Vilene ® (DO DO 101 or 102) are sold.
- a particularly advantageous embodiment of the water retention layer (2) is a foam sheet of water-soluble polymer, as described, for example, in DE-A-100 32 456, to which reference is expressly made at this point.
- foams disintegrate or dissolve rapidly in an aqueous environment and moreover have the advantage that (further) active substances (eg an activator) for release can be provided in the cavities of the foam, which due to their encapsulation in the foam have no contact with materials outside of the surrounding polymer shell of the foam.
- the spaces or cavities of the foam can therefore be filled with a gas, a gas mixture, a liquid or a liquid mixture.
- the polymer of the matrix is a water-soluble polymer as used for the water-soluble films described above, but a polyvinyl alcohol-polyethylene glycol graft copolymer is preferably used.
- the spaces or cavities of the foam film (2) can each be present in isolation from one another in the polymer matrix, preferably in the form of solidified bubbles (as are known, for example, from PU or PS foams).
- the gas or gas mixture in the cavities is preferably air, nitrogen, oxygen, carbon dioxide, helium or any mixture of these gases, more preferably air.
- the spaces or cavities are filled with a liquid or a liquid mixture (for example an oil), wherein these liquids are not miscible with the matrix material and do not dissolve the polymer skeleton of the matrix.
- the liquid or the liquid mixture may also contain one or more active ingredients.
- the thickness of the foam sheet is preferably 0.1 to 5 mm, more preferably 0.5 to 1 mm.
- a solution or dispersion which contains the water-soluble polymer and optionally an active substance.
- This solution which may also be a concentrated solution or viscous mass, is then foamed by introducing a gas or gas mixture (eg air).
- a gas or gas mixture eg air
- a gas or gas mixture eg air
- This allows the diameter of the bubbles in a wide range, almost arbitrarily set.
- the diameter of the bubbles or cavities can be in the range of 0.01 to 50 pm; prefers bubbles / cavities with a diameter between 0.1 and 10 pm.
- a foam-stabilizing agent may be added before or during foam production.
- suitable means for.
- surfactants are known in the art and listed by way of example above.
- the foam is spread on the active substance-containing, water-soluble polymer layer or, if the foam film is produced separately, on a suitable support as a film or layer and subsequently dried. By solvent removal, the foam solidifies during drying to form an airgel, the resulting cavities receive a permanent structure.
- the shape, number and size of the generated spaces or cavities can be influenced by means of various process parameters, for. Example by the concentration of the polymer, by the viscosity of the polymer composition, by controlling the foaming process (see above) or by selecting the foam-stabilizing agents.
- the laminate according to the invention is produced from the active substance-containing polymer film and the water-soluble nonwoven fabric, knitted fabric, woven fabric or the water-soluble foam film.
- the procedure is such that the active substance-containing polymer film and the water-soluble nonwoven fabric, knitted fabric or woven or water-soluble foam film are produced separately, superimposed and then combined to form the laminate according to the invention and rolled up or made up.
- the water-soluble nonwoven fabric, knitted fabric, woven fabric or the water-soluble foam film can also be used in the process of producing the active ingredient-containing polymer film
- the active ingredient-containing polymer film is laminated or painted in the manufacturing process of the water-soluble nonwoven, knitted fabric, or the water-soluble foam sheet on this). Subsequently, the laminate becomes
- the advantage of the laminate according to the invention is that after addition of water, the laminate sucks like a sponge and / or a larger amount remains on the material surface.
- the thin water-soluble cover (2) for example, the fleece
- the laminate dissolved before for the subsequent drug release greater amounts of water are available.
- the laminates according to the invention are outstandingly suitable for bleaching
- aqueous medium preferably with an aqueous, 2-10% by weight H 2 0 2 solution or a carbamide peroxide gel; (immediately) thereafter placing a strand of hair on the moistened water retention layer, optionally covering the strand of hair with a sheet-like cover that is impermeable to active substances and possibly additives,
- PVPP polyvinylpyrrolidone polymer
- disintegrant Kollidon ® CL-SF, BASF
- a carrier film aluminum foil, 40 g / m 2, Fa. Korff, Switzerland
- the resulting product was separated into sections of 10 * 17 cm each and packed individually in four-edge sealed bags.
- the packaging material used was a paper / aluminum / PE composite.
- the resulting paste was applied by means of a hand doctor blade (gap width 600 pm) on a carrier film, covered with a water-soluble nonwoven (VILENE DO 101 Fa. Freudenberg, Weinheim, Germany) and then allowed to stand for 24 hours at room temperature, so that a dry laminate with A basis weight of about 520 g / m 2 resulted (round blank punch 50 cm 2 , weighing by means of laboratory fine scale).
- Example 3 The resulting product was separated into sections of 10 x 17 cm each and packed individually in four-edge sealed bags.
- the packaging material used was a paper / aluminum / PE composite.
- the paste obtained was applied by means of a hand doctor blade (gap width 600 ⁇ ) on a carrier film, covered with a water-soluble nonwoven (VILENE DO 101 Fa. Freudenberg, Weinheim, Germany) and then allowed to rest for 24 hours at room temperature, so that a dry laminate with A basis weight of about 490 g / m 2 resulted (round blank punch 50 cm 2 , weighing by means of laboratory fine scale).
- Example 4 (application example)
- the water retention layer of the laminates was treated with an aqueous hydrogen peroxide solution or gel (4-9% by weight). Subsequently, one strand of hair was placed on the moistened water retention layer. By wrapping the strand with the laminate, intensive contact was made between the strand and the active ingredients. After a contact time of 45 minutes without external heat, the laminates were removed and the strands rinsed with water. Description of the result:
- the hair treated in this way showed, depending on the thickness of the laminate and the applied mass of hydrogen peroxide, a different degree of color lightening.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Emergency Medicine (AREA)
- Biomedical Technology (AREA)
- Textile Engineering (AREA)
- Cosmetics (AREA)
- Medicinal Preparation (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112013008626A BR112013008626A2 (pt) | 2010-10-15 | 2011-10-06 | laminado com comportamento aperfeiçoado de retenção de água |
EP11776693.1A EP2627509A1 (de) | 2010-10-15 | 2011-10-06 | Laminat mit verbessertem wasserretentionsverhalten |
US13/878,843 US20130255713A1 (en) | 2010-10-15 | 2011-10-06 | Laminate having improved water retention characteristics |
CA2813683A CA2813683A1 (en) | 2010-10-15 | 2011-10-06 | Laminate having improved water retention characteristics |
JP2013533113A JP2013544671A (ja) | 2010-10-15 | 2011-10-06 | 改善された水分保持特性を有する積層体 |
CN2011800498990A CN103153613A (zh) | 2010-10-15 | 2011-10-06 | 具有改进的水保留特性的层压膜 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010048408A DE102010048408A1 (de) | 2010-10-15 | 2010-10-15 | Laminat mit verbessertem Wasserretentionsverhalten |
DE102010048408.3 | 2010-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012048816A1 true WO2012048816A1 (de) | 2012-04-19 |
Family
ID=44903141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/004983 WO2012048816A1 (de) | 2010-10-15 | 2011-10-06 | Laminat mit verbessertem wasserretentionsverhalten |
Country Status (8)
Country | Link |
---|---|
US (1) | US20130255713A1 (de) |
EP (1) | EP2627509A1 (de) |
JP (1) | JP2013544671A (de) |
CN (1) | CN103153613A (de) |
BR (1) | BR112013008626A2 (de) |
CA (1) | CA2813683A1 (de) |
DE (1) | DE102010048408A1 (de) |
WO (1) | WO2012048816A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2513315A (en) * | 2013-04-22 | 2014-10-29 | Angelo Seminara | Improved hair colouring sheets |
JP2016506456A (ja) * | 2012-12-20 | 2016-03-03 | ザ プロクター アンド ギャンブルカンパニー | 洗濯物香り添加剤 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105407975A (zh) * | 2013-07-22 | 2016-03-16 | 欧莱雅 | 用于美白使用者身体表面的成套产品、相关方法和过程 |
DE102014017015A1 (de) * | 2014-11-19 | 2016-05-19 | Bio-Tec Biologische Naturverpackungen Gmbh & Co. Kg | Biologisch abbaubare Mehrschichtfolie |
JP6057491B1 (ja) * | 2016-07-13 | 2017-01-11 | 株式会社国際気象コンサルタント | シート状部材とシート状部材の製造方法 |
DE102017127452A1 (de) * | 2017-11-21 | 2019-05-23 | Lts Lohmann Therapie-Systeme Ag | Wasserlösliche Polymerklebschichten |
DE102018101778A1 (de) * | 2018-01-26 | 2019-08-01 | Lts Lohmann Therapie-Systeme Ag | Mehrschichtiger Oraler Dünnfilm |
DE102020134098A1 (de) * | 2020-12-18 | 2022-06-23 | Henkel Ag & Co. Kgaa | Portionseinheit mit kosmetischem Mittel zur Aufhellung keratinischer Fasen, insbesondere menschlicher Haare |
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2010
- 2010-10-15 DE DE102010048408A patent/DE102010048408A1/de not_active Withdrawn
-
2011
- 2011-10-06 US US13/878,843 patent/US20130255713A1/en not_active Abandoned
- 2011-10-06 BR BR112013008626A patent/BR112013008626A2/pt not_active Application Discontinuation
- 2011-10-06 CN CN2011800498990A patent/CN103153613A/zh active Pending
- 2011-10-06 EP EP11776693.1A patent/EP2627509A1/de not_active Withdrawn
- 2011-10-06 WO PCT/EP2011/004983 patent/WO2012048816A1/de active Application Filing
- 2011-10-06 CA CA2813683A patent/CA2813683A1/en not_active Abandoned
- 2011-10-06 JP JP2013533113A patent/JP2013544671A/ja active Pending
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JP2016506456A (ja) * | 2012-12-20 | 2016-03-03 | ザ プロクター アンド ギャンブルカンパニー | 洗濯物香り添加剤 |
GB2513315A (en) * | 2013-04-22 | 2014-10-29 | Angelo Seminara | Improved hair colouring sheets |
Also Published As
Publication number | Publication date |
---|---|
DE102010048408A1 (de) | 2012-04-19 |
CN103153613A (zh) | 2013-06-12 |
BR112013008626A2 (pt) | 2016-06-21 |
US20130255713A1 (en) | 2013-10-03 |
CA2813683A1 (en) | 2012-04-19 |
JP2013544671A (ja) | 2013-12-19 |
EP2627509A1 (de) | 2013-08-21 |
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