EP4110267A1 - Stabile, flüssige emulgatoren auf basis von zitratestern und deren verwendung - Google Patents
Stabile, flüssige emulgatoren auf basis von zitratestern und deren verwendungInfo
- Publication number
- EP4110267A1 EP4110267A1 EP20707601.9A EP20707601A EP4110267A1 EP 4110267 A1 EP4110267 A1 EP 4110267A1 EP 20707601 A EP20707601 A EP 20707601A EP 4110267 A1 EP4110267 A1 EP 4110267A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fatty acid
- acid residue
- weight
- alkanediol
- oil
- 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- Withdrawn
Links
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
- A61K8/02—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
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
- A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
- A61K31/22—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin
- A61K31/225—Polycarboxylic acids
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS OR COOKING OILS
- A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
- A23D7/01—Other fatty acid esters, e.g. phosphatides
- A23D7/011—Compositions other than spreads
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS OR COOKING OILS
- A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
- A23D7/01—Other fatty acid esters, e.g. phosphatides
- A23D7/013—Spread compositions
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L35/00—Foods or foodstuffs not provided for in groups A23L5/00 - A23L33/00; Preparation or treatment thereof
- A23L35/10—Emulsified foodstuffs
-
- 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
- A61K8/345—Alcohols containing more than one hydroxy group
-
- 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
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/365—Hydroxycarboxylic acids; Ketocarboxylic 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
- A61K8/37—Esters of carboxylic acids
- A61K8/375—Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
-
- 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
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
-
- 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
- A61K9/107—Emulsions ; Emulsion preconcentrates; Micelles
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
- C09K23/34—Higher-molecular-weight carboxylic acid esters
- C09K23/36—Esters of polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/0017—Multi-phase liquid compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2041—Dihydric alcohols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2093—Esters; Carbonates
Definitions
- the present invention is in the field of emulsifiers and provides new emulsifier mixtures for use in cosmetic or pharmaceutical formulations or in cleaning agents.
- the emulsifier mixtures according to the invention comprise a citrate ester mixture and at least one 1,2-alkanediol, 1,3-alkanediol, 1,4-alkanediol and / or 1,5-alkanediol and are characterized by increased stability and low precipitation rate over a wide temperature range and during a long storage period.
- Emulsifiers are very popular in cosmetics, pharmacy and food production.
- emulsifiers based on natural fats / oils and citric acid have been known for a long time. They are used in the food industry as emulsifiers, complexing agents (among other things to support the effect of antioxidants) and carrier substances with the designation E472c (citric acid-glycerine ester of mono- and diglycerides of fatty acids or citrem) and are, among other things, in cakes, Biscuits, puff pastries, bread, sausage products, ice cream and desserts, confectionery and baking fats can be found (Schuster, G., et al., Emulsifiers for food, Berlin, Heidelberg, New York, Tokyo: Springer 1985, pp.
- citric acid-glycerine ester is based on natural oils are based, they also have fatty acid residues corresponding to the natural oils of different lengths. Depending on the oil used, these can have a fatty acid chain length of 8 to 18 carbon atoms.
- Emulsions are disperse systems of two or more immiscible liquids or immiscible liquid phases.
- One of the liquid phases forms the dispersion medium (also: outer, continuous or coherent phase) in which the other phase (also: inner or disperse phase) is distributed in the form of fine droplets.
- the particle diameter of the particles which are preferably assumed to be spherical in an idealized approach or whose size is specified as the size of an equivalent sphere of the same diameter (“equivalent sphere"), fluctuates.
- Most emulsions show inconsistent particle sizes and are polydisperse.
- Most natural and technical emulsions consist of water and oil or fat as immiscible phases.
- An O / W emulsion or oil-in-water emulsion is a fat-water mixture whose continuous phase is aqueous. Accordingly, an O / W emulsifier is an emulsifier that stabilizes an O / W emulsion or contributes to its stability.
- the oil phase of an O / W emulsion mostly includes the use of a vegetable oil. Vegetable oils with a high content of unsaturated fatty acids tend to oxidize after a certain period of storage. This leads to oils becoming “rancid”, which is associated with a significant reduction in odor.
- citrate esters Numerous citric acid glycerol esters, hereinafter referred to as citrate esters, are described in the prior art.
- Chinese patent application CN105541614A discloses emulsifiers which are citrate esters with a fatty acid chain length of 14, 16 and 18 carbon atoms.
- US4071544A discloses a process for citrate ester production with various mono- and diglycerides.
- citrate esters can also be used for other purposes.
- JP2012031250A and US20110273646A1 disclose citrate esters of caprylic acid, stearic acid and oleic acid as a component for the production of protective films for optical polarizers, in particular optical polarizers in liquid crystal-based liquid crystal displays (LCD) devices with the aim of being particularly resistant to temperature and humidity Provide LCD devices.
- LCD liquid crystal-based liquid crystal displays
- Citrate esters have the advantage that their precursors can be obtained from natural oils and are therefore more environmentally friendly than artificially produced emulsifiers. Furthermore, citrate esters show very good emulsifying properties and can stabilize emulsions. Due to their origin, citrate esters, made from vegetable lipids, often have a high proportion of C16 / C18 fatty acids. interesting herbal raw materials, however, have a high content of short-chain C12 / C14 fatty acids, which are far less common in the field. For these, too, new processes for efficient esterification with citric acid must constantly be provided in order to make them usable on the one hand, but also to make them stable in the end product.
- the primary object of the present invention is therefore to provide emulsifier mixtures which have the positive properties of citrate residues with the most varied chain lengths of the respective fatty acid residues and at the same time Remain stable over a wide temperature range and over a long storage period and do not crystallize out.
- Figure 1 shows photographic recordings of five different emulsifier mixtures with sunflower oil and 1,2-pentanediol corresponding to the compositions from Table 2. Shown is a comparison between the solid, frozen emulsifier at -21 ° C (start) and the emulsifier after thawing in liquid Form at room temperature.
- Figure 5a shows photographic recordings of six different ones
- Emulsifier mixtures of C12 / C14 citrate esters in combination with glyceryl caprylate and various concentrations of 1,2 pentylene glycol (a 1,2-alkanediol, namely 1,2-pentanediol) from Table 8 (experiments V2G and S1G-S5G). A comparison is shown after storage for one week at ambient temperature (room temperature) (cf. Example 5 below).
- Figure 5b shows photographs of the emulsifier mixtures from Table 8 (experiments V2G and S1G-S5G) after thawing in liquid form at room temperature.
- R 1 , R 2 and R 3 are citric acid residue bound to the glycerol backbone by an ester bond;
- citric acid or the “citric acid residue” derived from it denotes citric acid (2-hydroxypropane-1, 2,3-tricarboxylic acid, in particular CAS: 77-92-9 or InChlKey: KRKNYBCHXYNGOX-
- UHFFFAOYSA-N or the radical derived therefrom and their diastereomers or the radicals derived therefrom and their enantiomers or the radicals derived therefrom, in particular isocitric acid (3-carboxy-2-hydroxy-pentane-1,5-diacid, in particular InChlKey: ODBLHEXUDAPZAU- FONMRSAGSA-N) or the radical derived therefrom and their enantiomers or the radicals derived therefrom.
- isocitric acid 3-carboxy-2-hydroxy-pentane-1,5-diacid, in particular InChlKey: ODBLHEXUDAPZAU- FONMRSAGSA-N
- a citric acid residue bound by an ester bond in the context of the present invention is to be understood as a structural component for which one of the following formulas (iii-a) or (iii-b) applies:
- “Long-chain fatty acid residues” in the context of the present invention are preferably residues of the fatty acids selected from the group consisting of the associated residues of fatty acids with more than 14 carbon atoms, in particular palmitic acid, palmitoleic acid, stearic acid, oleic acid and linolenic acid.
- the structural formulas of the fatty acid residues to be used according to the invention are shown below:
- an “alkanediol” in the context of the present invention is a compound which consists of straight or branched hydrocarbon chains and contains exactly two hydroxyl groups at different points.
- the hydroxyl groups are bound to different carbon atoms, so that the nomenclatures 1,2-alkanediol, 1,3-alkanediol, 1,4-alkanediol, etc. result.
- the hydroxyl groups are bonded to the first and to the second carbon atom, in a 1,3-alkanediol to the first and third alkanediol.
- the mass spectrum generated enables the individual components to be identified. It is possible to generate an MS spectrum of the substance for further identification and to carry out a detection via light or laser light scattering. Alternatively, a gravimetric analysis can also be used. Smaller deviations in the determination of the% by weight data, for example due to different measurement methods, are acceptable within the scope of the present invention and are not relevant for the feasibility of the subject matter of the invention described herein.
- Another embodiment of the present invention relates to an emulsifier mixture according to the invention, the 1,2-, 1,3-, 1,4-, or 1,5-alkanediol being independently selected from the group consisting of a corresponding C5-C12-alkanediol , preferably, the alkanediol being selected from 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol, 1,2-octanediol, 1,2-nonanediol, 1,2-decanediol, 1,2-dodecanediol , 1,3-propanediol, 1,4-butanediol, or 1,5-pentanediol, or mixtures thereof.
- the 1,2-, 1,3-, 1,4-, or 1,5-alkanediol being independently selected from the group consisting of a corresponding C5-C12-alkanediol
- Yet another embodiment of the present invention relates to an emulsifier mixture according to the invention, the proportion of citrate residues being mixed 10-98% by weight, preferably 30-80% by weight, and particularly preferably 40-70% by weight, and the Proportion of the at least one 1,2-, 1,3-, 1,4- or 1,5-alkanediol 1-90% by weight, preferably 2-75% by weight, and particularly preferably 4-50% by weight. -%, based in each case on the total weight of the emulsifier mixture.
- the present invention relates to an emulsifier mixture according to the invention, the emulsifier mixture additionally preferably from 1 to 20% by weight 2-10% by weight, and particularly preferably 3-9% by weight, preferably 5-8% by weight of 4-hydroxyacetophenone, preferably wherein the emulsifier mixture comprises 4-8% by weight of 4-hydroxyacetophenone in combination with 4 30% by weight, preferably 5-10% by weight, of at least one 1,2-alkanediol, the 1,2-alkanediol being preferably 1,2-octanediol, or a mixture of 1,2-alkanediols, which comprises at least 0.5-5% by weight 1,2-octanediol.
- the present invention relates to an emulsifier mixture according to the invention, the at least one fatty acid residue of the citrate ester mixture being obtained from a fatty acid-containing starting material, the highest fatty acid content of the starting material in% by weight based on the total fatty acid content of C8 to C18 fatty acids being preferred on C8 to C14 fatty acids, particularly preferably on C12 to C14 fatty acids.
- the present invention relates to an emulsifier mixture according to the invention, the emulsifier mixture being a liquid one and optionally comprising at least one lipophilic solvent.
- a liquid emulsifier mixture is particularly preferred in the context of the present invention, since it can be directly replaced in a wide range of formulations, without prior dissolving and further formulation steps. This is particularly advantageous in the case of liquid or cream formulations in which the end product is a homogeneous mixture. It could surprisingly be shown that the emulsifier mixture according to the invention is preferably in the form of a liquid emulsifier mixture and shows increased stability and reduced crystallization both over a wide temperature range and over a long storage period.
- a “lipophilic solvent” in the context of the present invention denotes a solvent in which fats and oils dissolve or which itself can dissolve fats and oils well. Examples of this are fats and oils of natural, biotechnological or chemical origin.
- the present invention may use the English INCI term, which is common in the technical field, to make the corresponding terms easier to understand, since a translation could possibly lead to ambiguities.
- Another embodiment of the present invention relates to an emulsifier mixture according to the invention, which has reduced oxidation and thus an extended shelf life, the extended shelf life being at least one month, preferably at least three months, and particularly preferably at least six months, based on an emulsifier mixture not according to the invention.
- Another aspect of the present invention relates to the use of an emulsifier mixture according to the invention to achieve reduced cloudiness and precipitation at temperatures between about -20 ° C to + 45 ° C, preferably between about 5-25 ° C, in a liquid emulsifier mixture according to the invention, wherein the liquid emulsifier mixture preferably has a homogeneous phase transition on thawing, or a clear solution remains after storage.
- the constituents of the oil phase of emulsions according to the invention can advantageously be selected from the group of branched and unbranched hydrocarbons and waxes, silicone oils, dialkyl ethers, the group of saturated or unsaturated, branched or unbranched alcohols, and fatty acid triglycerides, namely triglycerol esters saturated and / or unsaturated, branched and / or unbranched alkanecarboxylic acids with a chain length of 8 to 24, in particular 12 to 18, carbon atoms.
- Viscosity is understood to be the property, especially of a liquid, of resisting the mutual laminar displacement of two adjacent layers.
- the viscosity can therefore also be understood as toughness or internal friction.
- these can, for example, thickeners based on organic (alginate, tragacanth, xanthan, modified celluloses, carrageenans, etc.) and / or inorganic (bentonite, pyrogenic silica, magnesium-aluminum Silicates, etc.) base included.
- “Preparation of semi-finished goods” in the context of the present invention refers to products that are not completely finished, such as emulsions or preparations that are further processed into finished products at a later point in time. In this one or more final processing steps, further essential compounds can be added to the semifinished product, thinning steps can be carried out or the semifinished product various mechanical ones Processes are subjected to in order to achieve certain macroscopic properties.
- a cosmetic or pharmaceutical, preferably dermatological, preparation used for cleaning in the context of the present invention is preferably a preparation which, among other things, is preferably used for cosmetic skin care. Cosmetic skin care is primarily to be understood as strengthening or restoring the natural function of the skin as a barrier against environmental influences (e.g.
- preparations used for nutrition or enjoyment are, for example, baked goods (e.g. bread, dry biscuits, cakes, other pastries), confectionery (e.g. chocolates, chocolate bar products, other bar products, fruit gums, hard and soft caramels, chewing gum), alcoholic or non-alcoholic beverages (e.g. coffee, tea, wine, beverages containing wine, beer, beverages containing beer, liqueurs, schnapps, brandies, fruit-based lemonades, isotonic drinks, soft drinks, nectars, fruit and vegetable juices, fruit or vegetable juice preparations), instant drinks (e.g. instant drinks Cocoa drinks, instant tea drinks, instant coffee drinks, instant fruit drinks), meat products (e.g.
- baked goods e.g. bread, dry biscuits, cakes, other pastries
- confectionery e.g. chocolates, chocolate bar products, other bar products, fruit gums, hard and soft caramels, chewing gum
- alcoholic or non-alcoholic beverages e.g. coffee, tea, wine, beverages containing wine, beer, beverages containing
- ham fresh sausage or raw sausage preparations, seasoned or marinated fresh or cured meat products
- eggs or egg products dried egg, protein, egg yolk
- grain products e.g. Breakfast cereals, muesli bars, pre-cooked ready-to-eat rice products
- dairy products e.g. milk beverages, butter milk beverages, milk ice cream, yoghurt, kefir, cream cheese, soft cheese, hard cheese, dry milk powder, whey, butter, buttermilk, partially or fully hydrolyzed milk protein-containing products
- products made from soy protein or other soy bean fractions e.g.
- soy milk and products made from it fruit drinks with Soy protein, preparations containing soy lecithin, fermented products such as tofu or Tempe or products made from them), fruit preparations (e.g. jams, fruit ice cream, fruit sauces, fruit fillings), vegetable preparations (e.g. ketchup, sauces, dried vegetables, frozen vegetables, pre-cooked vegetables, cooked vegetables), snacks (e.g. baked or deep-fried potato chips or potato dough products, extrudates based on corn or peanuts), products based on fat and oil or emulsions thereof (e.g. mayonnaise, tartar sauce, dressings), other ready meals and soups (e.g.
- the preparations within the meaning of the invention can also serve as semi-finished goods for the production of further preparations used for nutrition or pleasure.
- the preparations within the meaning of the invention can also be in the form of capsules, tablets (non-coated as well as coated tablets, e.g. enteric coatings), coated tablets, granules, pellets, solid mixtures, dispersions in liquid phases, as emulsions, as powders, as solutions, as pastes or other swallowable or chewable preparations are present as food supplements.
- Another aspect of the present invention relates to a preparation comprising at least one semi-finished product preparation according to the invention, wherein the preparation is preferably selected from the group consisting of a preparation used for cleaning, a cosmetic or pharmaceutical, preferably a dermatological preparation and one used for enjoyment or nutrition Preparation as defined above.
- Example 6 Determining the size of the oil droplets in an emulsion according to the invention
- Phase A (without carbomer and xanthan) was heated to 80.degree. Carbomer and xanthan were then added to phase A. The mixture was then dispersed with a magnetic stirrer for 30 seconds.
- Phase B was then slowly added to phase A and emulsified for 3 minutes at 6000 rpm (IKA T25 digital Ultra TURRAX).
- Phase C was then added while stirring with a paddle stirrer for 10 minutes at 100 rpm.
- the emulsion obtained was cooled with further stirring for 10 minutes at 100 rpm.
- the pH was then checked and adjusted to pH 5.7-6.0.
- the obtained value D vo, 5 [pm] indicates the volume-related droplet diameter in pm, i.e. a value of 5.8 pm means that 50% of the droplets are smaller than 5.8 pm.
- a measured value of 11 pm indicates that 90% of the oil droplets have a diameter smaller than 11 pm.
- Emulsions with smaller oil droplets have a significantly improved physical stability.
- Example 7 Improving the odor of a liquid emulator mixture
- Emulsifier mixtures according to the invention were produced and their odor examined after 3 months of storage according to the evaluation key in Table 1.
- Table 12 Formulations and evaluation after 3 months of storage at 40 ° C compared to the 5 ° C sample
- Vegetable oils with a high content of unsaturated fatty acids such as rapeseed oil and especially sunflower oil tend to oxidize.
- the oils were examined alone as well as in mixtures with C12 / C14 citrate ester.
- sunflower oil and rapeseed oil as well as the respective mixtures with C12 / C14 citrate ester were treated in a so-called Oxipres device with oxygen and pressure for 48 h at 40 ° C and 5 bar.
- This method is used to determine the shelf life of oils, fats and their mixtures by exposing the samples to oxygen / pressure at a defined temperature were treated. Before and after the Oxipres treatment, the peroxide number was determined, which is a key figure for assessing fat spoilage.
- Table 13 Composition of the mixtures and results of the POZ determinations (before and after the Oxipres treatment)
- the mixtures with C12 / C14 citrate ester have a clearly stabilizing effect on the vegetable oils and show a significantly lower POZ number compared to the individual oils.
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- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Emergency Medicine (AREA)
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- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Food Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2020/054915 WO2021170218A1 (de) | 2020-02-25 | 2020-02-25 | Stabile, flüssige emulgatoren auf basis von zitratestern und deren verwendung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4110267A1 true EP4110267A1 (de) | 2023-01-04 |
Family
ID=69723920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20707601.9A Withdrawn EP4110267A1 (de) | 2020-02-25 | 2020-02-25 | Stabile, flüssige emulgatoren auf basis von zitratestern und deren verwendung |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230101832A1 (de) |
| EP (1) | EP4110267A1 (de) |
| CN (1) | CN115151238A (de) |
| WO (1) | WO2021170218A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121001699A (zh) * | 2023-04-28 | 2025-11-21 | 莱雅公司 | 用于护理角蛋白材料的组合物 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2813032A (en) | 1957-08-23 | 1957-11-12 | Griffith Laboratories | Fatty monoglyceride citrate and antioxidant containing the same |
| BE834950A (fr) * | 1974-11-27 | 1976-02-16 | Procede de preparation de citrates de glycerides partiels d'acide graset produits obtenus | |
| WO2004112731A2 (de) * | 2003-06-26 | 2004-12-29 | Symrise Gmbh & Co. Kg | O/w-emulgator, o/w-emulsion und deren verwendungen |
| DE102005051864A1 (de) * | 2005-10-25 | 2007-04-26 | Beiersdorf Ag | Kosmetische O/W-Emulsion mit 1,2-Hexandiol |
| ES2553132T3 (es) | 2008-04-22 | 2015-12-04 | Azelis Deutschland Kosmetik Gmbh | Utilización de ésteres de ácido cítrico como emulsionantes W/O |
| ES2401935T3 (es) * | 2009-04-20 | 2013-04-25 | Dr. Straetmans Gmbh | Sistema de emulsionante |
| US9040129B2 (en) | 2010-04-26 | 2015-05-26 | Fujifilm Corporation | Protective film of polarizer, polarizer and method for producing it, and liquid crystal display device |
| JP5570341B2 (ja) | 2010-07-29 | 2014-08-13 | 富士フイルム株式会社 | 偏光板と液晶セルとの間に用いる粘着剤組成物 |
| DE102014104255A1 (de) * | 2014-03-26 | 2015-10-01 | Beiersdorf Ag | Öl in Wasser-Emulsionen mit einem Gehalt an 4-Hydroxyacetophenon und anionischen Emulgatoren |
| EP3045161B1 (de) * | 2015-01-18 | 2026-03-25 | Symrise AG | Verwendung von Wirkstoffgemischen aus 1,2-Hexandiol und 1,2-Octandiol in kosmetischen, pharmazeutischen oder dermatologischen Emulsionen |
| EP4477092A3 (de) * | 2015-12-16 | 2025-02-26 | Symrise AG | Zusammensetzung mit stabilisiertem geschmack und/oder geruch (ii) |
| CN105541614A (zh) | 2015-12-30 | 2016-05-04 | 广州星业科技股份有限公司 | 一种柠檬酸酯及其制备方法和应用 |
| EP3727278A1 (de) * | 2017-12-22 | 2020-10-28 | Symrise AG | Kosmetische emulsion, umfassend 1,2-decandiol |
| WO2019120572A1 (de) * | 2017-12-22 | 2019-06-27 | Symrise Ag | Emulsionen enthaltend gemische aus 1,2-hexandiol und 1,2-octandiol |
-
2020
- 2020-02-25 WO PCT/EP2020/054915 patent/WO2021170218A1/de not_active Ceased
- 2020-02-25 CN CN202080097390.2A patent/CN115151238A/zh active Pending
- 2020-02-25 EP EP20707601.9A patent/EP4110267A1/de not_active Withdrawn
- 2020-02-25 US US17/904,639 patent/US20230101832A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20230101832A1 (en) | 2023-03-30 |
| WO2021170218A8 (de) | 2021-11-18 |
| WO2021170218A1 (de) | 2021-09-02 |
| CN115151238A (zh) | 2022-10-04 |
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