EP2155148A2 - Tensidfreie schaumformulierungen - Google Patents
Tensidfreie schaumformulierungenInfo
- Publication number
- EP2155148A2 EP2155148A2 EP08759493A EP08759493A EP2155148A2 EP 2155148 A2 EP2155148 A2 EP 2155148A2 EP 08759493 A EP08759493 A EP 08759493A EP 08759493 A EP08759493 A EP 08759493A EP 2155148 A2 EP2155148 A2 EP 2155148A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- foam formulation
- formulation according
- emulsion
- foam
- pickering emulsion
- 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.)
- Ceased
Links
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K51/00—Preparations containing radioactive substances for use in therapy or testing in vivo
- A61K51/12—Preparations containing radioactive substances for use in therapy or testing in vivo characterised by a special physical form, e.g. emulsion, microcapsules, liposomes, characterized by a special physical form, e.g. emulsions, dispersions, microcapsules
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/14—Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
-
- 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
- A61K8/04—Dispersions; Emulsions
- A61K8/046—Aerosols; Foams
-
- 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
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
-
- 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
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
- A61K8/062—Oil-in-water emulsions
-
- 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
- A61K8/27—Zinc; 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
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/29—Titanium; 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
- A61K8/72—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
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/10—Dispersions; Emulsions
- A61K9/12—Aerosols; Foams
- A61K9/124—Aerosols; Foams characterised by the propellant
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
- A61P17/02—Drugs for dermatological disorders for treating wounds, ulcers, burns, scars, keloids, or the like
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
- A61P17/16—Emollients or protectives, e.g. against radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- 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
- A61K2800/33—Free of surfactant
Definitions
- the present invention relates to cosmetic and dermatological
- the invention relates to the use of Pickering emulsions for the production of foams.
- Emulsion is generally understood to mean heterogeneous systems which consist of two liquids which are immiscible or only slightly miscible with one another, which are usually referred to as phases.
- one of the two liquids is dispersed in the form of very fine droplets in the other liquid.
- the two liquids are water and oil and oil droplets are finely dispersed in water, then it is an oil-in-water emulsion (O / W emulsion, for example, milk).
- O / W emulsion for example, milk
- the basic character of an O / W emulsion is characterized by the water.
- a water-in-oil emulsion (W / O emulsion, e.g., butter) is the reverse principle, with the basic character here being determined by the oil.
- Emulsifiers In order to achieve the permanent dispersion of one liquid in another, emulsions in the conventional sense require the addition of a surface-active substance (emulsifier).
- Emulsifiers have an amphiphilic molecular structure consisting of a polar (hydrophilic) and a nonpolar (lipophilic) moiety, which are spatially separated.
- emulsifier enclosed droplets of the second phase water droplets in W / O or lipid vesicles in O / W emulsions
- Emulsifiers reduce the interfacial tension between the phases by being located at the interface between the two liquids. They form interface surfaces at the oil / water phase interface, which counteracts irreversible coalescence of the droplets.
- Emulsifier mixtures are often used to stabilize emulsions.
- emulsifier or "conventional emulsifier” is known in the art. Conventional emulsifiers and their use are described, for example, in the publications: Vietnamesekosmetik, 4th edition,ticianliche Verlagsgesellschaft mbH Stuttgart, pages 151 to 159, and Fiedler Lexikon der Hilfsstoffe, 5th edition Editio Cantor Verlag Aulendorf, pages 97 to 121 described.
- emulsifiers can be broken down into ionic (anionic, cationic and amphoteric) and nonionic according to their hydrophilic moiety:
- an anionic emulsifier is the soap, usually referred to as the water-soluble sodium or potassium salts of the saturated and unsaturated higher fatty acids.
- hydrophilic part of the molecule of nonionic emulsifiers often consists of glycerol, polyglycerol, sorbitans, carbohydrates or
- Emulsions represent an important product type in the field of cosmetic and / or dermatological preparations, which is used in the most diverse fields of application.
- a variety of products - such as lotions and creams - are available for the care of the skin, in particular for the refatting of dry skin.
- the aim of skin care is to compensate for the loss of fat and water caused by daily washing of the skin.
- skin care products should protect against environmental influences - especially from sun and wind - and delay the aging of the skin.
- Cosmetic emulsions are also used as deodorants. Such formulations serve to eliminate body odor that results when the odorless fresh sweat is decomposed by microorganisms.
- emulsions in the form of cleaning emulsions use. They are mostly used for facial cleansing and in particular for removing decorative cosmetics.
- Cleaning emulsions have - in contrast to other cleaning preparations such as soap - the advantage of being particularly tolerated by the skin, as they may contain nourishing oils and / or non-polar active substances such as vitamin E in their lipophilic phase.
- emulsifier-free emulsions are emulsifier-free emulsions. These are free of emulsifiers in the strict sense, i. of low molecular weight amphiphilic substances (molecular weight ⁇ 5000) which can form micelles and / or other liquid crystalline aggregates in higher concentrations.
- emulsifier is to be understood here as customary in the art: IUPAC defines the properties of an emulsifier as follows: Emulsifiers are surface-active substances which preferentially adhere to the interface between the oil and water phases and thus reduce the interfacial tension In addition, these substances are able to improve the stability of emulsions by reducing the rate of aggregation and / or coalescence.
- emulsifiers for the stabilization of pharmaceutical and cosmetic emulsions predominantly so-called genuine emulsifiers, ie conventional emulsifiers in the sense of the present description, are used, which according to their structure and their physicochemical behavior belong to the substance class of the surfactants. They are characterized by an amphiphilic structure and the ability to micellar association.
- emulsifier-free has also been established in the field of medicine, according to a definition of the concept adopted by the Society for Dermopharmacy in an interdisciplinary consensus between pharmacists, dermatologists and other experts (http://www.dermotopics.de/de/ausgabe_ 1 _03_e / emulgatorok_ 1 _2003_d.
- emulsifier-free if it is stabilized with surface-active macromolecules (molecular weight above 5000) instead of emulsifiers in the narrower sense (conventional emulsifiers).
- a special form of the emulsifier-free emulsion is the Pickering emulsion.
- Pickering / solids-stabilized emulsions are stabilized by finely divided solid particles and make it possible to dispense with conventional emulsifiers as far as possible.
- the solid substance In Pickering emulsions, the solid substance accumulates at the phase interface oil / water in the form of a layer, which prevents the disperse phases from flowing together. Of particular importance in this case are the wetting properties of the solid particles, which should be wetted by both hydrophilic and lipophilic phases.
- a particular application of cosmetic and / or dermatological emulsions is the application as foams.
- Foam formulations have the
- Foams are complicated physical structures that require special tuning of the foam-forming components.
- Foams are generally obtained by spraying an emulsion formulation or an aqueous surfactant (stabilizer) solution.
- the propellant-added emulsion is discharged from a pressurized container (such systems are also referred to in the literature and patent literature as aerosol foams).
- the pressurized mixture of emulsion and propellant gas expands and forms the foam bubbles.
- foams can also be produced using other systems, such as pump sprays.
- Coordinated foam formulations have a stable two- or more-phase polydisperse structure on application which forms a network structure on the skin comparable to a membrane.
- Such network structures have the advantage that they form a protective function, for example before contact with water, but allow unimpeded gas exchange with the environment. In such foams, there is virtually no obstruction of Perspiratio insensibiles and no corresponding heat accumulation. Thus, the positive properties of a protective and care function are associated with an unchanged skin respiration.
- Foam formulations known heretofore include conventional surfactants / emulsifiers which provide for the stabilization of the emulsion and for the subsequent foam stability.
- WO 2004/017930 describes further Pickering emulsions, which are distinguished, in particular, by a low viscosity and are thus suitable for dermatological wipes. Such low viscosity Pickering emulsions can even be sprayed under mist formation.
- foam formulations associated with those of the Pickering emulsions can be prepared without conventional emulsifiers or with very low levels of conventional emulsifiers, which combine the positive properties of the foam, namely the physical structure and pleasant applicability, with good skin tolerance. This combination of properties makes such foam formulation particularly useful for cosmetic and dermatological formulations for sensitive skin types. It Compatibility and ease of use are advantageously combined.
- Foam products leads.
- foams are obtained, for example, by incorporating propellant gases in O / W emulsion systems. If the propellant gas dissolved in the dispersed oil phase evaporates during foaming, a foam forms (gas in liquid dispersion). Upon evaporation or expansion of the propellant gas dissolved in the disperse oil phase, dilatation of the dispersed oil phase occurs. It is now surprising that the solids network at the phase interface of this strain load withstands and it does not break the preparation during foaming.
- the invention thus relates to foam formulations comprising a
- Pickering emulsion of the oil-in-water type comprising an oil phase and a water phase, and optionally propellant gas.
- the invention relates to foam formulations containing not more than 0.5% by weight of conventional emulsifiers, preferably not more than 0.3% by weight, more preferably not more than 0.1% by weight, and more preferably free from conventional emulsifiers.
- the levies are each related to the total weight of the emulsion without propellant gas.
- the invention relates to the use of Pickering emulsions, in particular Pickering emulsions, which are substantially free or free of conventional emulsifiers, for the production of foam formulations. Furthermore, the invention relates to the use of foam formulations based on Pickering emulsions as a carrier for active ingredients, as skin care agents, as skin cleansers or as sunscreen. The foam formulation can therefore be used as a cosmetic, medical device or pharmaceutical.
- the invention includes a process for the preparation of foam formulations based on Pickering emulsions.
- the method comprises the steps:
- foam formulations are formulations, in particular emulsions, which are prepared to produce foam.
- the formulations may either be filled with propellant gas into a pressure vessel or be bottled without propellant in a container other than a pressure vessel, which makes it possible, when dispensing the
- substantially emulsifier-free emulsions are those emulsions which are not more than 0.5% by weight, preferably not more than 0.3% by weight, more preferably not more than 0.1% by weight of conventional emulsifiers contain.
- emulsifier-free emulsions are those which contain no conventional emulsifiers.
- a Pickering emulsion is a solids-stabilized emulsion.
- it is a solids-stabilized emulsion of the oil-in-water type (O / W emulsion).
- a solids-stabilized emulsion according to the invention comprises not more than 0.5% by weight, preferably not more than 0.3% by weight, more preferably not more than 0.1% by weight of conventional emulsifiers.
- conventional emulsifiers according to the present invention are anionic, cationic, amphoteric and nonionic surfactants.
- anionic surfactants are neutralized branched and / or unbranched, saturated or unsaturated fatty acids having a chain length of 10 to 40 carbon atoms.
- Typical representatives of the cationic surfactants are
- Typical representatives of the nonionic surfactants have a hydrophilic moiety, such as glycerol, polyglycerol, sorbitan, carbohydrates or polyoxyethylene glycols, which is linked via ester and / or ether bonds with the lipophilic moiety, which usually consists of fatty alcohols, fatty acids or iso-fatty acids.
- the polyethoxylated fatty acid esters having chain lengths of 10 to 40 carbon atoms and having a degree of ethoxylation of 5 to 100 belong to this group.
- conventional emulsifiers for the purposes of the present application are all amphiphilic substances with a molecular weight ⁇ 5000, which in a higher concentration micelles and / or others
- conventional emulsifiers are all surface-active substances which, in particular at conventional storage and application temperatures, e.g. Room temperature is not present as a solid or polymer.
- a solid emulsifier is a particulate substance which is wettable by both lipophilic and hydrophilic liquids. These may be inorganic or organic solids. The particles may also be untreated or coated. The particle size is preferably between 1 nm and 200 nm, more preferably between 5 nm and 100 nm.
- Suitable solid emulsifiers are particulate inorganic or organic solids which are wettable by both lipophilic and hydrophilic liquids. Suitable representatives are, for example, titanium dioxide, in particular coated Titanium oxide (eg available from Merck KGaA under the name Eusolex® T-2000), zinc oxide (obtainable from BASF AG under the name Z-Cote Max) silicon dioxide, in particular highly disperse silicon dioxide, Fe 2 O 3 , Veegum, bentonite and ethylcellulose. Further, alumina, nanoparticulate precipitated calcium carbonate, carbon, magnesia, magnesium trisilicate, crystalline fatty alcohols and fatty acids, polymer latices, e.g. Polystyrenes or polymethacrylates, and polymer pseudolatices. Mixtures of the abovementioned solid emulsifiers can also be used. Coated titanium dioxide or zinc oxide are preferred.
- the emulsions according to the invention contain more than 1% by weight of solid emulsifier, preferably more than 2% by weight of solid emulsifier, in particular from 2 to 7% by weight of solid emulsifier.
- the emulsions according to the invention particularly preferably contain 3 to 4% by weight of the most solid ffemulgator. The data are in each case based on the total weight of the emulsion without propellant gas.
- Suitable components which can form the oil phase can be selected from the polar and non-polar oils or mixtures thereof.
- the oil phase of the inventive formulations is advantageously selected from the group of lecithins and fatty acid triglycerides, from the group of propylene glycols or butylene glycols, fatty acid esters, from the group of natural waxes of animal and vegetable origin, from the group of ester oils, from the group of dialkyl ethers and dialkyl carbonates, from the group of branched and unbranched hydrocarbons and waxes and from the group of cyclic and linear silicone oils.
- Particular preference is given to triglycerides, in particular caprylic / capric triglyceride, obtainable under the name Miglyol 812 from Sasol and its blending with further oil and wax components.
- triglycerides in particular caprylic / capric acid triglyceride, obtainable under the name Miglyol 812 from Sasol / Myritol 312 from Cognis.
- the emulsions according to the invention preferably contain from 10 to 50% by weight of oil phase, more preferably from 25 to 35% by weight of oil phase.
- the data are in each case based on the total weight of the emulsion without propellant gas.
- the water phase may contain cosmetic adjuvants, e.g. lower alcohols (e.g., ethanol, isopropanol), lower diols or polyols, and their ethers (e.g., propylene glycol, glycerin, butylene glycol, hexylene glycol, and ethylene glycol), foam stabilizers, and thickeners.
- cosmetic adjuvants e.g. lower alcohols (e.g., ethanol, isopropanol), lower diols or polyols, and their ethers (e.g., propylene glycol, glycerin, butylene glycol, hexylene glycol, and ethylene glycol), foam stabilizers, and thickeners.
- Suitable thickeners are polymeric thickeners which are partially water soluble or at least water dispersible and form gels or viscous solutions in aqueous systems. They increase the viscosity of the water either by binding water molecules (hydration) or by absorbing and enveloping the water in their intertwined macromolecules, thereby restricting the mobility of the water.
- Suitable polymers are:
- Modified natural substances such as cellulose ethers (eg hydroxypropyl cellulose ethers, hydroxyethyl cellulose and hydroxypropylmethyl cellulose ethers); Natural compounds such as agar-agar, carrageenan, polyoses, starch, dextrins, gelatin, casein;
- cellulose ethers eg hydroxypropyl cellulose ethers, hydroxyethyl cellulose and hydroxypropylmethyl cellulose ethers
- Natural compounds such as agar-agar, carrageenan, polyoses, starch, dextrins, gelatin, casein;
- Synthetic compounds e.g. Vinyl polymers, polyethers, polyimines, polyamides and derivatives of polyacrylic acid; and - inorganic compounds such as e.g. Polysilicic acid and clay minerals.
- a cellulose ether is included. Particular preference is given to hydroxypropylmethylcellulose.
- the emulsions according to the invention preferably contain from 0.2 to 1.5% by weight
- Thickener (based on the dry weight of the thickener and the total weight of the emulsion without propellant gas). Particularly preferred are 0.5 to 0.8 wt .-% thickener.
- the active ingredient contained can be chosen from among all surface-applied on the skin agents and mixtures thereof.
- the active ingredient may be cosmetic or pharmaceutical. Accordingly, one obtains cosmetic or dermatological (to be used as a medical device or drug product) foam formulations. Furthermore, the formulation can be used to protect the skin from environmental influences.
- the active substance can be purely vegetable or synthetic.
- the group of active ingredients may also overlap with the other ingredient groups, such as the oil component, the thickeners or the solids emulsifiers.
- some oil components can also serve as active ingredients, such as oils with polyunsaturated fatty acids, or solid emulsifiers, such as particulate titanium dioxide can serve as a UV filter.
- the substances can be assigned to several groups.
- Active ingredients of the formulations according to the invention are advantageously selected from the group of substances with moisturizing and barrier-strengthening properties, such as, for example, As hydro viton, a replica of NMF, Pyrrolidoncarbonklare and their salts, lactic acid and its salts, glycerol, sorbitol, propylene glycol and urea, substances from the group of proteins and protein hydrolysates such.
- As collagen, elastin and silk protein substances from the group of glucosaminoglucans, such as. B. hyaluronic acid, from the group of carbohydrates, such as.
- pentavidin which corresponds in composition to the carbohydrate mixture of the human horny layer, and the group of lipids and lipid precursors such as ceramides.
- Further advantageous agents may be further selected in the context of the present invention from the group of vitamins, such as. As panthenol, niacin, ⁇ -tocopherol and its esters, vitamin A and vitamin C.
- the active ingredients selected from the group of antioxidants z. G., Galate and polyphenols. Urea, hyaluronic acid and pentavitin are preferred substances.
- substances with skin calming and regenerating action are used as active ingredients, such as.
- active ingredients such as.
- Advantageous active ingredients in the context of the present invention are also plants and plant extracts. These include e.g. Algae, aloe, arnica, beard braid, comfrey, birch, nettle, calendula, oak, ivy, witch hazel, henna, hops, chamomile, butcher's broom, peppermint, calendula, rosemary, sage, green tea, tea tree, horsetail, thyme and walnut and their extracts.
- plants and plant extracts include e.g. Algae, aloe, arnica, beard braid, comfrey, birch, nettle, calendula, oak, ivy, witch hazel, henna, hops, chamomile, butcher's broom, peppermint, calendula, rosemary, sage, green tea, tea tree, horsetail, thyme and walnut and their extracts.
- the preparations according to the invention may also contain as active ingredients antimycotics and antiseptics / disinfinents of synthetic or natural origin.
- active ingredients are glucocorticoids, antibiotics, analgesics, antiphlogistics, antirheumatics, antiallergic drugs, antiparasitics, antipruriticosa, antipsoriatics, retinoids, local anesthetics, vein therapeutics, keratolytics, hyperemic substances, coronary therapeutics (nitrates / nitro compounds), antivirals, cytostatics, hormones, wound healing promoting agents, eg growth factors, enzyme preparations and insecticides.
- the formulations may include dyes, pearlescent pigments, fragrances / perfume,
- Light stabilizer substances preservatives, complexing agents, antioxidants and repellents.
- Suitable propellants are z. B. N 2 O, propane, butane and i-butane, the finished
- Foam formulation contains from 5 to 15 wt .-%, preferably about 10 wt .-% propellant gas.
- the foam formulations according to the invention are made by providing an oil-in-water type emulsion of Pickering and filling the emulsion or Pickering emulsion and optionally propellant gas into one optionally produced pressure vessel.
- the Pickeringemulsion can also be filled into another container, which is suitable even without propellant gas to deliver the Pickeringemulsion as a foam.
- the Pickering emulsion is prepared in the following steps:
- the oil phase and the water phase at a temperature of 50 to 90 0 C, preferably from 50 to 70 0 C and particularly preferably at about 60 0 C homogenized.
- the Pickering emulsion comprises a thickening agent
- the following steps are added: 5. Provide an aqueous thickener solution
- the Pickeringemulsion is applied with 10 wt .-% propellant gas for the preparation of the foam formulation. 4.
- the foam formulations of the present invention can be used for all cosmetic and dermatological (medical or pharmaceutical) purposes.
- the formulations could be used as a skin care or skin cleanser. They can also serve as carriers for active ingredients and be used in the medical dermatological field.
- the formulations can be used as sunscreen agents.
- Many of the solid emulsifiers, such as titanium dioxide, are effective UVA and UVB filters.
- composition of the primary Pickering emulsion Composition of the primary Pickering emulsion:
- composition of the foam formulation :
- Eusolex T2000 is weighed and transferred into a laboratory homogenizer and mixed with the heated to 60 0 C Miglyol 812 within one minute, and homogenized within 5 minutes.
- the water is heated to 60 ° C. and added at 1000 rpm for one minute.
- the mixture is homogenized at 3000 rpm for 5 minutes.
- hypromellose solution 30.00 g are added to 60.00 g of the primary Pickering emulsion with stirring.
- the hypromellose Pickeringemulsion is then applied in aluminum monoblock cans with 10.00 g of propellant gas.
- a stable, fine-bubble cream foam is formed when removing the foam formulation from the compressed gas package by means of a suitable valve with attached foam applicator.
- the structure of the cream foam is maintained for a period of time sufficient to evenly distribute the foam on the skin. 5.2.
- composition of the primary Pickering emulsion Composition of the primary Pickering emulsion:
- Myritol 318 from Cognis (caprylic acid / capric triglyceride) 30.00 g almond oil 100.00 g water
- composition of the xanthan gum solution (1%):
- composition of the foam formulation :
- Eusolex T 2000 is weighed and transferred into a laboratory homogenizer and mixed with the 0 to 60 C mixture of Cetiol V, Myritol 318 and almond oil within one minute and homogenized within 5 minutes.
- the water is heated to 60 ° C. and added at 1000 rpm for one minute.
- the mixture is homogenized at 3000 rpm for 5 minutes.
- Preparation of foam formulation 30.00 g of xanthan gum solution is added to 60.00 g of the primary Pickering emulsion with stirring.
- the xanthan gum solution-containing Pickeringemulsion is then applied in aluminum monoblock cans with 10.00 g of propellant gas.
- a stable, fine-bubble cream foam is formed when removing the foam formulation from the compressed gas package by means of a suitable valve with attached foam applicator.
- the structure of the cream foam is maintained for a period of time sufficient to evenly distribute the foam on the skin.
- composition of the primary Pickering emulsion Composition of the primary Pickering emulsion:
- ZCote is weighed and transferred to a laboratory homogenizer and mixed with the mixture of Cetiol V, Myritol 318, Cetiol SN and almond oil within one minute and homogenized within 5 minutes.
- the water is added at 1000 rpm within one minute.
- the mixture is homogenized at 3000 rpm for 5 minutes.
- hypromellose solution 52.00 g are added to 40.00 g of the primary Pickering emulsion with stirring.
- the hypromellose Pickeringemulsion is then applied in aluminum monoblock cans with 8.00 g of propellant gas.
- a stable, fine-bubble cream foam is formed when removing the foam formulation from the compressed gas package by means of a suitable valve with attached foam applicator.
- the structure of the cream foam is maintained for a period of time sufficient to evenly distribute the foam on the skin.
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- Colloid Chemistry (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08759493A EP2155148A2 (de) | 2007-05-10 | 2008-05-09 | Tensidfreie schaumformulierungen |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07107950A EP1992323B1 (de) | 2007-05-10 | 2007-05-10 | Tensidfreie Schaumformulierungen |
| EP08759493A EP2155148A2 (de) | 2007-05-10 | 2008-05-09 | Tensidfreie schaumformulierungen |
| PCT/EP2008/055760 WO2008138894A2 (de) | 2007-05-10 | 2008-05-09 | Tensidfreie schaumformulierungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2155148A2 true EP2155148A2 (de) | 2010-02-24 |
Family
ID=38788222
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07107950A Active EP1992323B1 (de) | 2007-05-10 | 2007-05-10 | Tensidfreie Schaumformulierungen |
| EP08759493A Ceased EP2155148A2 (de) | 2007-05-10 | 2008-05-09 | Tensidfreie schaumformulierungen |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07107950A Active EP1992323B1 (de) | 2007-05-10 | 2007-05-10 | Tensidfreie Schaumformulierungen |
Country Status (22)
| Country | Link |
|---|---|
| US (4) | US20100316684A1 (de) |
| EP (2) | EP1992323B1 (de) |
| JP (1) | JP2010527332A (de) |
| KR (1) | KR101604776B1 (de) |
| CN (1) | CN101677913B (de) |
| AT (1) | ATE544441T1 (de) |
| AU (1) | AU2008250298B2 (de) |
| CA (1) | CA2683869C (de) |
| CO (1) | CO6361888A2 (de) |
| DK (1) | DK1992323T3 (de) |
| EA (1) | EA023887B1 (de) |
| EC (1) | ECSP10010396A (de) |
| ES (1) | ES2382110T3 (de) |
| HR (1) | HRP20120371T1 (de) |
| IL (1) | IL201972A (de) |
| MX (1) | MX2009011708A (de) |
| PL (1) | PL1992323T3 (de) |
| PT (1) | PT1992323E (de) |
| RS (1) | RS52336B (de) |
| UA (1) | UA98960C2 (de) |
| WO (1) | WO2008138894A2 (de) |
| ZA (1) | ZA200906927B (de) |
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| WO2011064631A1 (en) | 2009-10-02 | 2011-06-03 | Foamix Ltd. | Surfactant-free, water-free, foamable compositions and breakable foams and their uses |
| CA2683258C (en) * | 2009-10-20 | 2011-08-09 | Asa Bullion Investment Limited | Lotion for cleaning human anorectal area |
| PL2335675T3 (pl) | 2009-12-10 | 2015-08-31 | Neubourg Skin Care Gmbh & Co Kg | Wolne od emulgatorów, stabilizowane polimerem formulacje pianki |
| PL2363108T3 (pl) | 2010-03-02 | 2018-04-30 | Neubourg Skin Care Gmbh & Co. Kg | Formulacje piankowe zawierające co najmniej jeden triterpenoid |
| FR2962662B1 (fr) * | 2010-07-19 | 2012-08-24 | Agronomique Inst Nat Rech | Composition sous forme d'emulsion, comprenant une phase hydrophobe dispersee dans une phase aqueuse |
| WO2012082065A1 (en) * | 2010-12-15 | 2012-06-21 | Speximo Ab | New particle stabilized emulsions and foams |
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-
2007
- 2007-05-10 DK DK07107950.3T patent/DK1992323T3/da active
- 2007-05-10 PL PL07107950T patent/PL1992323T3/pl unknown
- 2007-05-10 EP EP07107950A patent/EP1992323B1/de active Active
- 2007-05-10 AT AT07107950T patent/ATE544441T1/de active
- 2007-05-10 RS RS20120190A patent/RS52336B/sr unknown
- 2007-05-10 ES ES07107950T patent/ES2382110T3/es active Active
- 2007-05-10 PT PT07107950T patent/PT1992323E/pt unknown
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- 2008-05-09 AU AU2008250298A patent/AU2008250298B2/en not_active Ceased
- 2008-05-09 US US12/599,561 patent/US20100316684A1/en not_active Abandoned
- 2008-05-09 WO PCT/EP2008/055760 patent/WO2008138894A2/de not_active Ceased
- 2008-05-09 UA UAA200912805A patent/UA98960C2/uk unknown
- 2008-05-09 JP JP2010506950A patent/JP2010527332A/ja active Pending
- 2008-05-09 CA CA2683869A patent/CA2683869C/en active Active
- 2008-05-09 EA EA200971042A patent/EA023887B1/ru not_active IP Right Cessation
- 2008-05-09 EP EP08759493A patent/EP2155148A2/de not_active Ceased
- 2008-05-09 KR KR1020097025855A patent/KR101604776B1/ko not_active Expired - Fee Related
- 2008-05-09 CN CN200880015421.4A patent/CN101677913B/zh not_active Expired - Fee Related
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- 2017-05-03 US US15/585,955 patent/US20180078794A1/en not_active Abandoned
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- 2019-10-07 US US16/594,233 patent/US20200276458A1/en not_active Abandoned
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2021
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