EP4120994A1 - Composition d'estolides pour applications topiques - Google Patents
Composition d'estolides pour applications topiquesInfo
- Publication number
- EP4120994A1 EP4120994A1 EP21718938.0A EP21718938A EP4120994A1 EP 4120994 A1 EP4120994 A1 EP 4120994A1 EP 21718938 A EP21718938 A EP 21718938A EP 4120994 A1 EP4120994 A1 EP 4120994A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- estolides
- weight
- acid
- ester
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/361—Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides 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
- A61K8/37—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
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
-
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/60—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
- C07C69/675—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids of saturated hydroxy-carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/08—Refining
- C11C1/10—Refining by distillation
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/003—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fatty acids with alcohols
-
- 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
- A61K2800/10—General cosmetic use
Definitions
- the invention relates to an ester-estol composition for cosmetic, dermatological or pharmaceutical applications, obtained from raw materials of natural origin.
- the invention also relates to the use of an ester-estolide composition as an emollient in a cosmetic or pharmaceutical composition, in order to improve the sensory properties of said cosmetic or pharmaceutical composition, for topical application in particular to the skin, the lips. , fingernails, hair or scalp.
- the emollients currently used in cosmetics are either isoparaffins obtained from petrochemicals (mainly isododecane and isohexadecane), white oils, silicone oils or oils based on esters (synthetic or natural), such as oils. vegetable. Isoparaffins, white oils and silicone oils are widely distributed because they are very stable and odorless but do not come from renewable resources. Although volatile silicones such as cyclomethicone have long been regarded as harmless skin emollients and solvents (International Journal of Toxicology, Vol. 10, No. 1, pp. 9-19, 1991), concerns have been expressed these last years concerning their potential deleterious effects on the environment, even on human health (in particular as regards octamethylcyclotetrasiloxane).
- the present invention aims to provide a topical composition with improved physicochemical and sensory properties.
- the present invention also aims to provide a stable topical composition with properties suitable for its use.
- the present invention also aims to provide a composition which is obtained from raw materials of biological origin (non-petrochemical), in particular which is 100% of biological origin.
- the invention relates to an ester-ester composition obtained by the process comprising: a) addition reaction of a composition of saturated fatty acids (C1) with a composition of unsaturated fatty acids (C2) in the presence of a catalyst to obtain an acid estolide composition (C3), and b) optionally a treatment step making it possible to remove the unsaturated fatty acids and / or the saturated fatty acids present in the composition of acid estolides (C3) and / or separation for separating the acidic monoestolides from the acidic polyestolides present in the composition of acid estolides (C3), in order to obtain a composition of treated acid estolides (C3bis), and c) esterification reaction of the acid estolides of the composition of acid estolides (C3), or where appropriate of the composition of acid estolides treated (C3bis), using a composition of alcohols (C4) comprising one or more linear or branched alcohols having 2 with 6 carbon atoms, in order to obtain a compositio n
- the estolide ester composition according to the invention is characterized in that the composition of acid estolides (C3) undergoes a treatment step making it possible to remove the unsaturated fatty acids and / or the saturated fatty acids. , preferably by molecular distillation, in order to obtain a treated acidic estolide composition (C3bis).
- the composition of estolides ester according to the invention is characterized in that the composition of acid estolides (C3) or where appropriate (C3bis) undergoes a separation step making it possible to separate the acid monoestolides from the polyestolides acid present in the composition of acid estolides.
- the estolide ester composition according to the invention is characterized in that at the end of the reaction esterification, the composition of estolides ester (C5) undergoes a treatment step making it possible to remove the alcohols, preferably by molecular distillation.
- estolide ester composition according to the invention is characterized in that it comprises at least compounds of formula (I):
- R1 is a linear or branched alkylene radical comprising from 1 to 17 carbon atoms
- R2 is a hydrogen atom or a linear or branched alkyl radical comprising from 1 to 17 carbon atoms
- R3 is a linear or branched alkyl radical comprising from 2 to 6 carbon atoms
- R4 is a linear or branched alkyl radical comprising from 9 to 19 carbon atoms
- x is an integer equal to 0 or 1, it being understood that the sum of carbon atoms of radicals R1 and R2 range from 5 to n is an integer greater than or equal to zero.
- the estolide ester composition according to the invention is characterized in that it contains at least 30% by weight, preferably at least 40% by weight, more preferably at least 45% by weight of compounds of formula (I), relative to the total weight of the composition of ester estolides.
- the estolide ester composition according to the invention is characterized in that it has an iodine number of less than or equal to 12 g / 100 g of iodine, preferably less than or equal to 10 g / 100 g of iodine, more preferably ranging from 1 to 10 g / 100 g of iodine, measured according to the NF EN ISO 3961 method.
- the invention also relates to the use of the estolide ester composition according to the invention, in a cosmetic composition, preferably as an emollient of a cosmetic composition.
- the invention also relates to a cosmetic composition
- a cosmetic composition comprising: at least one estolide ester composition according to the invention, and at least one fatty substance and / or at least one cosmetic additive, said fatty substance and said cosmetic additive being different from the ester estolides according to the invention.
- the cosmetic composition according to the invention comprises, relative to the total weight of the cosmetic composition: from 1 to 80% by weight, preferably from 5 to 50% by weight, of composition (s) of estolides ester, from 1 to 80% by weight, preferably from 20 to 60% by weight, of fatty substance (s) different from the estolides chosen from hydrocarbon oils, vegetable oils, vegetable butters, ethers and fatty alcohols, oily esters, alkanes and silicone oils, from 0.1 to 30% by weight, preferably from 1 to 20% by weight, of cosmetic additives chosen from surfactants, preservatives, sequestrants, antioxidants, perfumes, coloring matters, fillers, thickeners, slimming agents, and their mixture
- compositions of 100% biological (non-petrochemical) origin exhibiting improved sensory properties, suitable for topical applications, in particular for cosmetic, dermatological or pharmaceutical applications.
- the invention relates to a composition of estolides in ester form obtained by the process comprising: a) addition reaction of a composition of saturated fatty acids (C1) with a composition of unsaturated fatty acids (C2) in the presence of 'a catalyst to obtain an acid estolide composition (C3), and b) optionally a treatment step making it possible to remove the unsaturated fatty acids and / or the saturated fatty acids present in the composition of acid estolides (C3) and / or separation for separating the acidic monoestolides from the acidic polyestolides present in the acidic estolide composition (C3), in order to obtain a treated acidic estolide composition (C3bis), and c) esterification reaction of the acidic estolides of the composition of acid estolides (C3), or where appropriate of the composition of acid estolides treated (C3bis), using a composition of alcohols (C4) comprising one or more linear or branched alcohols having from 2 to 6 carbon atoms, in order to obtain a composition
- the process for preparing the estolides does not include reactions different from the addition reactions described in step a) and different from the esterification reactions described in step c).
- the composition of estolides in ester form according to the invention is obtained by the process consisting of: a) addition reaction of a composition of saturated fatty acids (C1) with a composition of unsaturated fatty acids ( C2) in the presence of a catalyst to obtain an acidic estolide composition (C3), and b) optionally a treatment step making it possible to remove the unsaturated fatty acids and / or the saturated fatty acids present in the estolide composition acid (C3) and / or separation for separating the acid monoestolides from the acidic polyestolides present in the composition of acid estolides (C3), in order to obtain a composition of treated acid estolides (C3bis), and c) reaction d 'esterification of the acid estolides of the acidic estolide composition (C3), or where appropriate of the treated acidic estolide composition (C3bis), using an alcohol composition (C4) comprising one or more linear or branched alcohols having from 2 to 6 carbon atoms, in order to obtain an ester composition (
- an “estolid” denotes the product resulting from the reaction of addition of a carboxylic acid function to a carbon-carbon double bond of an unsaturated compound of acid or ester type.
- the term “estolid” in the present invention will refer to both a “monoestolid” and a “polyestolid”.
- a “monoestolid” denotes an estolid resulting from a single reaction of addition of an acid function of a saturated fatty acid to an olefinic function of an unsaturated acid or ester.
- the monoestolid can be in acid form or in ester form depending on the acid or ester form of the unsaturated compound.
- the monoestolid in acid form can then be esterified in order to obtain a monoestolid ester coming within the scope of the present invention.
- a “polyestolid” denotes the product resulting from the reaction between at least two unsaturated compounds (in acid or ester form) optionally followed by the reaction with a saturated acid.
- the polyestolid can be in acid form or in ester form depending on the acid or ester form of the unsaturated compound.
- the polyestolid in acid form can then be esterified in order to obtain an ester polyester within the scope of the present invention.
- the estolide composition according to the invention can be obtained from a composition of saturated fatty acids (C1) comprising at least one linear or branched fatty acid having from 10 to 20 carbon atoms.
- the saturated fatty acid composition (C1) comprises at least one saturated fatty acid having 10 to 16 carbon atoms, preferably 11 to 14 carbon atoms.
- the saturated fatty acid composition (C1) comprises at least one linear or branched saturated fatty monoacid having from 10 to 20 carbon atoms, preferably from 10 to 16 carbon atoms, preferably from 11 to 14 carbon atoms. carbon.
- the saturated fatty acid composition (C1) comprises at least one linear saturated mono fatty acid having 10 to 20 carbon atoms, preferably 10 to 16 carbon atoms, preferably 11 to 14 carbon atoms.
- the saturated fatty acid composition (C1) comprises, relative to the total weight of the saturated fatty acid composition (C1), at least 50% by weight, preferably at least 75% by weight, preferably further at least 90% by weight, advantageously at least 95% by weight, or even at least 98% by weight, of saturated fatty monoacid (s) having from 10 to 20 carbon atoms, preferably from 10 to 16 atoms carbon, preferably 11 to 14 carbon atoms.
- the saturated fatty acid composition (C1) comprises, relative to the total weight of the saturated fatty acid composition (C1), at least 50% by weight, preferably at least 75% by weight, preferably further at least 90% by weight, advantageously at least 95% by weight, or even at least 98% by weight, of the same saturated mono fatty acid having 10 to 20 carbon atoms, preferably 10 to 16 carbon atoms, preferably from 11 to 14 carbon atoms.
- the saturated fatty acid composition (C1) comprises at least one saturated fatty acid corresponding to formula (2), preferably at least 50% by weight, preferably at least 75% by weight, d 'the same saturated fatty acid corresponding to formula (2), relative to the total weight of the composition of saturated fatty acids (C1).
- R4 represents a monovalent alkyl radical, linear or branched, comprising from 9 to 19 carbon atoms, preferably a linear or branched alkyl comprising from 9 to 15 carbon atoms, advantageously a linear alkyl comprising from
- the saturated fatty acid composition (C1) comprises at least one acid chosen from decanoic acid, undecanoic acid, lauric acid and their mixture, preferably from undecanoic acid, l lauric acid and their mixture.
- the saturated fatty acid composition (C1) used in the invention comprises, relative to the total weight of the saturated fatty acid composition (C1), at least 85% by weight of saturated fatty acids comprising from 11 to 14 carbon atoms, preferably at least 90% by weight of saturated fatty acids comprising from 11 to 14 carbon atoms, ideally at least 95% by weight of saturated fatty acids comprising 11 to 14 carbon atoms carbon, relative to the total weight of the composition of saturated fatty acids (C1).
- the saturated fatty acid composition (C1) used in the invention comprises, relative to the total weight of the saturated fatty acid composition (C1), at least 85% by weight of the same acid saturated fat comprising from 11 to 14 carbon atoms, preferably at least 90% by weight of the same saturated fatty acid comprising
- composition of saturated fatty acids may be available commercially.
- Composition of unsaturated fatty acids (C2)
- the estolide composition according to the invention is obtained from an unsaturated fatty acid composition comprising, relative to the total weight of the unsaturated fatty acid composition (C2), at least 85% by weight of mono fatty acids monounsaturated having 8 to 22 carbon atoms, relative to the total weight of the composition of unsaturated fatty acids (C2).
- the unsaturated fatty acid composition comprises, relative to the total weight of the unsaturated fatty acid composition (C2), at least 90% by weight of monounsaturated mono fatty acids having from 8 to 22 carbon atoms, relative to to the total weight of the unsaturated fatty acid composition.
- the monounsaturated mono fatty acids of the monounsaturated fatty acid composition are chosen from monounsaturated mono fatty acids having 10 to 22 carbon atoms, preferably 14 to 22 carbon atoms, more preferably 16 to 18 carbon atoms. carbon.
- the mono monounsaturated fatty acids of the monounsaturated fatty acid composition can be linear or branched, preferably the monounsaturated fatty acids of the monounsaturated fatty acid composition are linear acids having unsaturation which is not in the terminal position.
- the unsaturated fatty acid composition is obtained from a vegetable or animal oil.
- the unsaturated fatty acid composition (C2) comprises, relative to the total weight of the unsaturated fatty acid composition (C2), at least 85% by weight of the same mono monounsaturated fatty acids having from 8 to 22 carbon atoms, preferably at least 85% by weight of the same monounsaturated fatty monoacids having from 14 to 22 carbon atoms, relative to the total weight of the unsaturated fatty acid composition (C2).
- the same monounsaturated fatty monoacid can be in the form of several positional isomers and / or several configurational isomers.
- two compounds are said to be "different” if they do not have the same crude formula.
- two cis / trans isomers or two positional isomers are not different compounds within the meaning of the present invention.
- Two positional isomers differ in the position of the carbon-carbon double bond on the hydrocarbon chain.
- the unsaturated fatty acids in the unsaturated fatty acid composition are monoacids which do not include a function other than the acid function and the carbon-carbon double bond.
- the composition of unsaturated fatty acids (C2) comprises at least one unsaturated fatty acid corresponding to formula (3):
- R1 represents a hydrogen atom or a monovalent alkyl radical, linear or branched, comprising from 1 to 16 carbon atoms, preferably from 4 to 14 carbon atoms, advantageously R1 represents a hydrogen atom or a linear alkyl comprising from 5 to 12 carbon atoms,
- R2 represents a divalent alkylene radical, linear or branched, comprising from 1 to 16 carbon atoms, preferably a linear or branched alkylene comprising from 3 to 13 carbon atoms, advantageously a linear alkylene comprising from 4 to 11 carbon atoms, being understood that the sum of the carbon atoms of R1 and R2 is from 5 to 19.
- the composition of unsaturated fatty acids (C2) used to obtain the composition of estolides according to the invention may comprise a mixture of at least two different unsaturated fatty acids. If the unsaturated fatty acid composition comprises a mixture of at least two different unsaturated acids, said composition preferably comprises at least 70% by weight, more preferably at least 80% by weight, advantageously at least 85% by weight, of the same acid and / or of its isomer, relative to the total weight of the composition of unsaturated acids (C2).
- the unsaturated fatty acid composition (C2) comprises oleic acid and / or its trans isomer, preferably in a proportion of at least 80% by weight, more preferably of at least 85% by weight, or even at least 88% by weight, relative to the total weight of the composition of unsaturated fatty acids (C2).
- said unsaturated compound may be in its cis form and / or in its trans form when it is used in the invention.
- the composition of unsaturated fatty acids (C2) used in the invention comprises, relative to the total weight of the composition of unsaturated fatty acids (C2), less than 8% by weight of polyunsaturated acids, preferably less than 5% by weight, or even less than 3% by weight of polyunsaturated acids.
- the composition of unsaturated fatty acids (C2) used in the invention comes from an oil rich in monounsaturated compound (s), preferably, the invention uses provides an unsaturated fatty acid composition substantially or completely free of polyunsaturated compounds.
- unsaturated compounds of plant origin we can choose the acids of pine oils (tall oil in English), rapeseed, sunflower, castor, peanut, flax, copra, olive, palm. , cotton, corn, tallow, lard, palm kernel, soybean, squash, grape seed, argan, jojoba, sesame, walnut, hazelnut, china wood, rice as well as oils of the same type derived from hybrid or genetically modified species.
- unsaturated compounds of animal origin mention may be made of the fatty acids of marine animals, fish or marine mammals and the fats of terrestrial animals such as the fats of horses, beef and pork.
- the estolides according to the invention are obtained by a first step consisting of an addition reaction of the composition of saturated fatty acids (C1) to the composition of unsaturated fatty acids (C2) in the presence of a catalyst to obtain a composition of acid estolides (C3).
- This reaction is an addition reaction between the acid function of saturated fatty acid and the carbon-carbon double bond of the unsaturated compound in acid or ester form in order to form at least one estolid.
- the addition reaction (step a)) is carried out at a temperature ranging from 20 to 120 ° C, preferably ranging from 30 to 100 ° C, advantageously ranging from 40 to 90 ° C.
- Step a) can be carried out continuously or semi-continuously or in batches.
- the method of the invention implements a batch addition of the composition (C1) and of the composition (C2) (simultaneous addition of all the reagents) or fractionated (gradual addition of one of the two compositions (C1) or (C2) on the other composition).
- the addition reaction is carried out according to one or more of the following conditions: the unsaturated compound to saturated fatty acid molar ratio ranges from 1/10 to 1/1, preferably from 1/8 to 1/4; the unsaturated compound on catalyst molar ratio ranges from 1 / 0.1 to 1/1, preferably from 1 / 0.15 to 1 / 0.5.
- the progress of the reaction can be followed by gas chromatography coupled to a flame ionization detector (GC-FID), according to methods known to those skilled in the art.
- GC-FID flame ionization detector
- the catalyst can be chosen from:
- RSO 3 H or its sulphonate form optionally supported, where R is a hydrogen atom or a linear, branched or cyclic hydrocarbon radical having 1 to 18 carbon atoms, optionally substituted by one or several heteroatoms, for example of the nitrogen, fluorine, oxygen, sulfur, silicon type,
- the catalysts which can be used in the invention are commercially available.
- the catalyst used in the invention can be a homogeneous catalyst or a heterogeneous catalyst.
- it When it is a heterogeneous catalyst, it can be a catalyst in the form of a polymer (example of the catalyst of formula (6)) or the catalyst (for example the catalyst of formula (5 )) can be supported on a material which can be chosen from alumina, silica, etc.
- the composition of estolides (C3) is obtained at the end of a separation step to separate the catalyst from the composition of estolides thus obtained.
- the process for obtaining estolides comprises a treatment step making it possible to remove the unsaturated fatty acids and / or the saturated fatty acids present in the composition of acid estolides (C3) and / or a step of separation making it possible to separate the acid monoestolides from the acid polyestolides present in the composition of acid estolides (C3), in order to obtain a composition of treated acid estolides (C3bis).
- the treatment step for removing unsaturated fatty acids and / or saturated fatty acids can be molecular distillation, carried out under vacuum or not.
- the separation step for separating the acidic monoestolides from the acidic polyestolides can be vacuum distillation, for example Myers type distillation or molecular distillation.
- the aforementioned separation step can be carried out before or after the aforementioned treatment step.
- composition of acid estolides (C3) or (C3bis) can include monoestolides and / or polyestolides.
- composition of acid estolides (C3) or (C3bis) typically comprises at least one estolid of formula (7).
- R1 represents a hydrogen atom or a monovalent alkyl radical, linear or branched, comprising from 1 to 16 carbon atoms, preferably from 4 to 14 carbon atoms, advantageously R1 represents a hydrogen atom or a linear alkyl comprising from 5 to 12 carbon atoms,
- R2 represents a divalent alkylene radical, linear or branched, comprising from 1 to 16 carbon atoms, preferably a linear or branched alkylene comprising from 3 to 13 carbon atoms, advantageously a linear alkylene comprising from 4 to 11 carbon atoms, it being understood that the sum of the carbon atoms of R1 and R2 ranges from 5 to 19, x is 0 or 1, n is an integer greater than or equal to zero.
- the composition of estolides (C3bis) is obtained after separation of the monoestolides from the polyestolides.
- the composition of estolides (C3bis) typically comprises at least 60% by weight of monoestolides of formula (8):
- R1 represents a hydrogen atom or a monovalent alkyl radical, linear or branched, comprising from 1 to 16 carbon atoms, preferably from 4 to 14 carbon atoms, advantageously R1 represents a hydrogen atom or a linear alkyl comprising from 5 to 12 carbon atoms,
- R2 represents a divalent alkylene radical, linear or branched, comprising from 1 to 16 carbon atoms, preferably a linear or branched alkylene comprising from 3 to 13 carbon atoms, advantageously a linear alkylene comprising from 4 to 11 carbon atoms, being understood that the sum of the carbon atoms of R1 and R2 ranges from 5 to 19, x is 0 or 1.
- the compound of formula (8) corresponds to the compound of formula (7) with n which is zero.
- the estolide composition according to the invention is an estolide composition in ester form, obtained by esterification of the acidic estolide composition (C3) or, where appropriate, of the acidic estolide composition treated (C3bis) with using a composition of alcohols (C4).
- the alcohol composition (C4) comprises at least one alcohol having 2 to 6 carbon atoms.
- the composition (C4) comprises at least one linear or branched aliphatic monoalcohol, preferably branched, having from 2 to 6 carbon atoms, preferably from 3 to 6 carbon atoms, or even from 4 to 5 carbon atoms. carbon.
- the esterification is carried out using an alcohol composition (C4) comprising at least 85% by weight, preferably at least 90% by weight, or even at least 95% by weight of alcohols having from 2 to 6 carbon atoms, relative to the total weight of the composition of alcohols.
- C4 an alcohol composition (C4) comprising at least 85% by weight, preferably at least 90% by weight, or even at least 95% by weight of alcohols having from 2 to 6 carbon atoms, relative to the total weight of the composition of alcohols.
- the esterification is carried out using an alcohol composition (C4) comprising at least 85% by weight, preferably at least 90% by weight, or even at least 95% by weight of the same alcohol having from 2 to 6 carbon atoms, relative to the total weight of the composition of alcohols.
- C4 an alcohol composition (C4) comprising at least 85% by weight, preferably at least 90% by weight, or even at least 95% by weight of the same alcohol having from 2 to 6 carbon atoms, relative to the total weight of the composition of alcohols.
- the esterification is carried out using an alcohol composition (C4) comprising at least 85% by weight, preferably at least 90% by weight, or even at least 95% by weight of the same alcohol having 4 to 5 carbon atoms, relative to the total weight of the composition of alcohols.
- C4 an alcohol composition comprising at least 85% by weight, preferably at least 90% by weight, or even at least 95% by weight of the same alcohol having 4 to 5 carbon atoms, relative to the total weight of the composition of alcohols.
- the alcohols in the alcohol composition (C4) are preferably of biological origin.
- composition of esterolides (C5) is obtained after an esterification reaction of the composition of acid estolides (C3) or, if applicable (C3bis).
- the esterification step can be carried out according to any method well known to those skilled in the art.
- the esterification reaction can be carried out using the same catalyst as that used for the addition reaction (step a)) or it can be different. Preferably, it will be the same catalyst.
- the catalyst can therefore exhibit one or more of the characteristics described above in the context of the addition reaction.
- the ester estolide composition (C5) typically comprises at least one ester ester of formula (1):
- R 1 is a linear or branched alkylene radical comprising from 1 to 16 carbon atoms
- R 2 is a hydrogen atom or a linear or branched alkyl radical comprising from 1 to 16 carbon atoms
- R 3 is a linear or branched alkyl radical comprising from 2 to 6 carbon atoms
- R 4 is a linear or branched alkyl radical comprising from 7 to 19 carbon atoms, x is an integer equal to 0 or 1, it being understood that the sum of the carbon atoms of the radicals R 1 and R 2 ranges from 5 to 19, n is an integer greater than or equal to zero.
- the ester-estolide composition (C5) can undergo a separation step to separate the monoestolides from the polyestolides, particularly where such separation has not taken place prior to the esterification step.
- the process for obtaining estolides comprises a treatment step making it possible to remove the esters of unsaturated fatty acids and / or the esters of saturated fatty acids present in the composition of estolides ester (C5). and / or a separation step making it possible to separate the ester monoestolides from the ester polyestolides present in the composition of acidic estolides (C5), in order to obtain a treated esterolides composition (C5bis).
- the treatment step making it possible to remove the unsaturated fatty acid esters and / or the saturated fatty acid esters can be molecular distillation, carried out under vacuum or not.
- the separation step for separating ester monoestolides from ester polyestolides can be vacuum distillation, for example Myers type distillation or molecular distillation.
- the treated esterolides composition (C5bis) preferably comprises at least 60% by weight of monoestolides corresponding to formula (9):
- R 1 is a linear or branched alkylene radical comprising from 1 to 16 carbon atoms
- R 2 is a hydrogen atom or a linear or branched alkyl radical comprising from 1 to 16 carbon atoms
- R 3 is a linear or branched alkyl radical comprising from 2 to 6 carbon atoms
- R 4 is a linear or branched alkyl radical comprising from 7 to 19 carbon atoms, x is an integer equal to 0 or 1, it being understood that the sum of the carbon atoms of the radicals R 1 and R 2 ranges from 5 to 19.
- the compound of formula (9) corresponds to the compound of formula (1) with n which is zero.
- R1 represents a hydrogen atom or a monovalent alkyl radical, linear or branched, comprising from 4 to 14 carbon atoms, advantageously R1 represents a hydrogen atom or a linear alkyl comprising from 5 to 12 carbon atoms, and
- R2 represents a divalent linear or branched alkylene radical comprising from 3 to 13 carbon atoms, advantageously a linear alkylene comprising from 4 to 11 carbon atoms, it being understood that the sum of the carbon atoms of R1 and R2 ranges from 8 to 19 , advantageously from 12 to 19.
- the esterolid composition is obtained by a process not comprising a subsequent step of hydrogenation of the estolide composition (C5) or, if appropriate (C5bis).
- composition of ester estolides (C5) or of ester estolides treated (C5bis) will denote the composition resulting from the process, after separation of the catalyst.
- the progress of the process, and in particular of the addition reaction, can be followed by gas chromatography coupled to a flame ionization detector (GC-FID), according to methods known to those skilled in the art.
- GC-FID flame ionization detector
- conversion denotes the amount in percentage by weight of unsaturated compound (s) having reacted and selectivity denotes the amount in percentage by weight of monoestolides formed relative to the total weight of the products formed (the calculation of the selectivity thus does not take into account either the reactants or the catalyst).
- the composition of unsaturated acids (C2) comprises at least 85% by weight of oleic acids and the composition of saturated fatty acids (C1) comprises at least 70% by weight of linear fatty acids having 10 to 14 carbon atoms and the composition of (C4) alcohols comprises at least 70% by weight of branched alcohols having 4 to 6 carbon atoms.
- the estolide estol composition (C5) comprises at least 70% by weight of the estolide (s) of formula (10):
- R 1 is a linear alkylene radical containing from 1 to 14 carbon atoms
- R 2 is a hydrogen atom or a linear or branched alkyl radical comprising from 1 to 14 carbon atoms,
- R 3 is a branched alkyl radical comprising from 4 to 6 carbon atoms
- R 4 is a linear alkyl radical comprising from 9 to 13 carbon atoms, x is an integer equal to 0 or 1, it being understood that the sum of the carbon atoms of the radicals R 1 and R 2 is equal to 15, n is a greater integer or equal to zero.
- the composition of estolides (C5) or where appropriate (C5bis) has an iodine number of less than or equal to 12 g / 100 g of iodine, preferably less than or equal to 10 g / 100 g of iodine, more preferably ranging from 1 to 10 g / 100 g of iodine, measured according to the NF EN ISO 3961 method.
- the manufacturing process according to the invention makes it possible to obtain low iodine numbers, which makes it possible to dispense with a subsequent hydrogenation step.
- the composition of estolides (C5) has an estolide number ("estolide number" in English) ranging from 1.0 to 1.3, preferably from 1.0 to 1.2. It should be noted that even in the absence of separation of the monoestolides, the polyestolides, the composition of estolides ester (C5) will preferably have an estolide number ranging from 1.0 to 1.3, or even from 1.0. at 12.
- the esterolide ester composition thus treated will have an estolide number ranging from 1.0 to 1.1, preferably. of about 1.0.
- the estolid number can be determined by NMR analysis.
- composition of estolides ester (C5) or where appropriate (C5bis) according to the invention advantageously exhibits a biodegradability at 28 days of at least 60%, preferably of at least 70%, more preferably of at least 75 % and advantageously at least 80%, measured according to the OECD 306 method.
- composition of estolides ester (C5) or where appropriate (C5bis) according to the invention advantageously comprises a carbon content of biological (non-petrochemical) origin, also called biocarbon content, of at least 90% by weight. , relative to the total weight of carbon.
- This organic carbon content can be measured according to the ASTM D6866 standard.
- a material of renewable origin or biomaterial is an organic material in which the carbon comes from CO2 fixed recently (on a human scale) by photosynthesis from the atmosphere.
- a biomaterial (100% carbon of natural origin) has a 14 C / 12 C isotopic ratio greater than 10 12 , typically around 1.2 x 10 12 , while a fossil material (petrochemical) has a zero ratio.
- the isotopic 14 C is formed in and the atmosphere is then integrated by photosynthesis, according to a time scale of a few tens of years at most. The half-life of 14 C is 5730 years.
- the materials resulting from photosynthesis namely plants in general, necessarily have a maximum content of isotope 14 C.
- the determination of the content of biomaterial or bio-carbon is given in accordance with the standards ASTM D 6866- 12, Method B (ASTM D 6866-06) and ASTM D 7026 (ASTM D 7026-04).
- estolide composition according to the invention can be used as a cosmetic, dermatological or pharmaceutical composition, for topical application.
- the estolide composition according to the invention provides a non-irritant, low-odor and biodegradable composition.
- estolide composition according to the invention makes it possible to obtain stable topical compositions.
- the estolide composition according to the invention also exhibits an emollient character having a soft and nourishing finish (feel).
- the estolide composition according to the invention makes it possible to replace silicone-type ingredients, such as dimethicones or polyisobutenes, in topical compositions.
- the composition of estolides according to the invention exhibits good miscibility with other fatty substances conventionally used in the cosmetic, dermatological or even pharmaceutical fields. .
- estolide composition according to the invention exhibits good miscibility with fatty substances chosen from the group comprising: hydrocarbon oils of biological or petrochemical origin, vegetable oils, vegetable butters, fatty ethers and alcohols, oily esters (different from estolides), alkanes and silicone oils.
- a subject of the invention is also the cosmetic, dermatological or pharmaceutical use of the estolid composition according to the invention for topical application.
- a subject of the invention is also the cosmetic, dermatological or pharmaceutical use of the estolid composition according to the invention as a skin care product (serums, creams, balms, etc.) as a hygiene product, as a sun product. / after-sun, as a make-up product, as a make-up removing product, as a perfumed product, as an antiperspirant product.
- a subject of the invention is also a cosmetic, dermatological or pharmaceutical process for treating the skin, comprising at least one step of applying to the skin, nails, lips, scalp or hair, a composition of 'estolides according to the invention.
- the invention also covers a cosmetic treatment process comprising at least one step of applying, preferably by spreading, to the skin, nails, lips, scalp or hair of the estolide composition according to l 'invention.
- a subject of the invention is also a topical composition
- a topical composition comprising the estolide composition according to the invention and at least one additive and / or at least one fatty substance, said additive and said fatty substance being distinct from one another and distinct from the ingredients of the estolide composition.
- the fatty substance can be chosen from hydrocarbon oils of biological or petrochemical origin, vegetable oils, vegetable butters, fatty ethers and alcohols, oily esters (other than estolides), alkanes and silicone oils.
- Hydrocarbon oils are fatty substances resulting from petrochemical processes.
- mineral oils isoparaffins, waxes, paraffins, polyisobutenes or else polydecenes.
- Examples of vegetable oils are in particular wheat germ, sunflower, grapeseed, sesame, corn, apricot, castor, shea, avocado, olive, soybean, sweet almond, palm, rapeseed, cottonseed, hazelnut, macadamia, jojoba, alfalfa, poppy, pumpkin, sesame, squash, rapeseed, blackcurrant, evening primrose oil , millet, barley, quinoa, rye, safflower,nadooulier, passionflower, muscat rose or camellia.
- Vegetable butters are fatty substances which have the same properties as vegetable oils. The difference between the two is that the butters are in solid form at room temperature.
- the raw material from which a butter is extracted (pulp, seeds or almonds) is heated after having been crushed for the extraction of the fat.
- butters can be refined to ensure better shelf life, neutralize odors, improve color and consistency. Rich in antioxidants and nourishing, the cosmetic properties of vegetable butters improve the elasticity of the skin, protect against external aggressions by leaving a protective film on the epidermis and thus reducing dehydration, repair and soothe by regenerating the natural hydrolipidic film of the skin .
- Examples of vegetable butters are in particular shea butter, cocoa butter, mango butter, shorea butter or even olive butter.
- Ethers and fatty alcohols are long-chain fatty waxy substances with remarkable properties, in particular film-forming, emollient, moisturizing, softening and protective. They act as moisturizing oils and as emulsifiers.
- fatty alcohol or ethers are: cetyl Alcohol, Stearyl Alcohol, myristyl alcohol, auryl alcohol, behenyl alcohol, cetearyl alcohol, dicaprylyl ethers, stearyl ethers or octyldodecanol (identified by their name I NCI).
- oily esters or esterified oils are the product of a reaction between fatty acids (acids with longer chains, such as for example stearic acid, oleic acid, palmitic acid ) and alcohols (fatty alcohols or polyols such as glycerol). These oils can contain substances from petrochemicals, as is the case with Isopropyl Palmitate.
- oilsy esters are caprylic capric triglyceride, coco caprylate caprate, oleyl erucate, oleyl linoleate, decyl oleate or even PPG-3 benzyl ether myristate (identified by their name I NCI).
- silicone oils means an oil comprising at least one silicon atom, and in particular at least one Si — O group.
- silicone oil mention may in particular be made of phenylpropyldimethylsiloxysilicate, dimethicones or else cyclopentasiloxane (identified by their name I NCI).
- the additive which is distinct from the fatty substance and from the composition of estolides, can be chosen from any adjuvant or additive usually used in the fields considered and in particular in the cosmetic, dermatological or pharmaceutical fields.
- any adjuvant or additive usually used in the fields considered and in particular in the cosmetic, dermatological or pharmaceutical fields.
- a person skilled in the art will take care to choose the optional additive (s) of the composition according to the invention in such a way that the advantageous properties inherently attached to the emollient composition in accordance with the invention are not or substantially not altered by the addition envisaged.
- anionic foaming surfactants such as sodium lauryl ether sulfate, sodium alkyl phosphate, sodium trideceth sulfate
- amphoteric such as alkyl betaine, disodium cocoamphodiacetate
- nonionic HLBs greater than 10 such as POE / PPG / POE, Alkylpolyglucoside, polyglyceryl-3hydroxylauryl ether
- conservatives sequestering agents (EDTA); antioxidants; the perfumes ; coloring materials such as soluble dyes, pigments and nacres; mattifying, tightening, whitening or exfoliating fillers; cosmetic active ingredients having the effect of improving the cosmetic properties of the skin, hydrophilic or lipophilic; electrolytes; hydrophilic or lipophilic, anionic, nonionic, cationic or amphoteric polymers
- the amounts of these various cosmetic adjuvants are those conventionally used in the field under consideration, and for example the cosmetic composition comprises an overall content ranging from 0.01 to 20% by weight of additives relative to the total weight of the composition.
- the cosmetic, dermatological or pharmaceutical composition of the invention is a dermatological or pharmaceutical composition
- said composition may comprise one or more active therapeutic principles.
- active agents which can be used in the dermatological or pharmaceutical composition of the invention, there may be mentioned, for example, sun filters; antiseptics; antibacterial active agents such as 2,4,4'-trichloro-2'-hydroxy diphenyl ether (or triclosan), 3,4,4'-trichlorocarbanilide (or triclocarban); antimicrobials such as benzoyl peroxide, niacin (vit. PP); and their mixtures.
- sun filters for example, sun filters; antiseptics; antibacterial active agents such as 2,4,4'-trichloro-2'-hydroxy diphenyl ether (or triclosan), 3,4,4'-trichlorocarbanilide (or triclocarban); antimicrobials such as benzoyl peroxide, niacin (vit. PP); and their mixtures.
- This cosmetic, dermatological or pharmaceutical composition comprises a physiologically acceptable medium, that is to say which does not exhibit deleterious side effects and in particular which does not produce redness, heating, tightness or tingling unacceptable for the patient. an user.
- the cosmetic, dermatological or pharmaceutical composition has a content of estolide composition according to the invention ranging from 0.5 to 80%, preferably from 1 to 50% and advantageously from 5 to 30% by weight per relative to the total weight of the cosmetic, dermatological or pharmaceutical composition.
- the cosmetic, dermatological or pharmaceutical composition comprises, relative to the total weight of the cosmetic, dermatological or pharmaceutical: from 0.5 to 80% by weight, preferably from 1 to 50% by weight. weight and advantageously from 5 to 30% by weight, of the estolide composition according to the invention, from 0 to 90% by weight, preferably from 5 to 80% by weight and advantageously from 10 to 70% by weight, of preferably from 20 to 60% by weight, and advantageously from 30 to 50% by weight, of fatty substance, from 0 to 20% by weight of additives, from 0 to 20% by weight of therapeutic active ingredients, it being understood that the composition comprises at least one additive or at least one fatty substance.
- the cosmetic, dermatological or pharmaceutical composition comprises, relative to the total weight of the cosmetic, dermatological or pharmaceutical: from 0.5 to 80% by weight, preferably from 1 to 50% by weight. weight and advantageously from 5 to 30% by weight, of the estolide composition according to the invention, from 0 to 90% by weight, preferably from 5 to 80% by weight and advantageously from 10 to 70% by weight, of preferably from 20 to 60% by weight, and advantageously from 30 to 50% by weight, of fatty substance chosen from hydrocarbon oils of biological or petrochemical origin, vegetable oils, vegetable butters, fatty ethers and alcohols, esters oily (different from estolides), alkanes and silicone oils, from 0 to 20% by weight of additives chosen from anionic, amphoteric or nonionic foaming surfactants with an HLB greater than 10; conservatives ; sequestering agents; antioxidants; the perfumes ; coloring matters; mattifying, tightening, whitening or exfoliating fillers; cosmetic active agents having the effect of improving the
- the cosmetic, dermatological or pharmaceutical composition according to the invention can thus be an anhydrous composition, an emulsion such as a water-in-oil (W / O) emulsion, an oil-in-water (O / W) emulsion or a multiple emulsion (in particular W / O / W or O / W / O), a nanoemulsion, or even a dispersion.
- an emulsion such as a water-in-oil (W / O) emulsion, an oil-in-water (O / W) emulsion or a multiple emulsion (in particular W / O / W or O / W / O), a nanoemulsion, or even a dispersion.
- the cosmetic, dermatological or pharmaceutical composition according to the invention is in the form of a more or less flexible cream or of a vaporizable emulsion, it can constitute, for example, a composition for removing make-up or cleaning the skin, lips, a composition after -solar, a composition for massaging the skin, a shower balm composition, an antiperspirant composition, a mask composition, a repairing balm composition, an exfoliating and / or exfoliating composition both for the face and for the hands (when it contains exfoliating particles), a makeup composition, a shaving composition, an aftershave balm composition, a perfumed composition, a composition for wipes or else a vaporizable composition.
- the cosmetic, dermatological or pharmaceutical composition according to the invention can also constitute a sunscreen composition when it will include at least one sunscreen.
- the cosmetic, dermatological or pharmaceutical composition according to the invention is a cosmetic composition when it only provides a cosmetic effect.
- the cosmetic composition according to the invention is free of therapeutic active ingredients.
- the cosmetic, dermatological or pharmaceutical composition according to the invention is a dermatological or pharmaceutical composition when it provides a therapeutic effect.
- the dermatological or pharmaceutical composition according to the invention comprises at least one therapeutic active ingredient, for example chosen from sun filters; water-soluble or fat-soluble vitamins such as vitamin A (retinol), vitamin E (tocopherol), vitamin C (ascorbic acid), vitamin B5 (panthenol), vitamin B3 (niacinamide), derivatives of these vitamins (especially esters ) and mixtures thereof; antiseptics; antibacterial active agents such as 2,4,4'-trichloro-2'-hydroxy diphenyl ether (or triclosan), 3,4,4'-trichlorocarbanilide (or triclocarban); antimicrobials such as benzoyl peroxide, niacin (vit. PP); and their mixtures.
- water-soluble or fat-soluble vitamins such as vitamin A (retinol), vitamin E (tocopherol), vitamin C (ascorbic acid), vitamin B5
- compositions as defined above for topical application, for example to the skin, nails, lips, etc. scalp or hair.
- a subject of the invention is also the cosmetic, dermatological or pharmaceutical use of the composition as defined above as a skin care product (serums, creams, balms, etc.) as a hygiene product, as a sun product / after-sun, as a make-up product, as a make-up removing product, as a perfumed product, as an antiperspirant product.
- a subject of the invention is also a cosmetic, dermatological or pharmaceutical process for treating the skin, nails, lips, scalp or hair, comprising at least one step of application to the skin, nails, lips. , the scalp or the hair of a cosmetic, dermatological or pharmaceutical composition as defined above.
- composition of the invention can also be used for the formulation of cosmetic compositions, dermatological compositions or pharmaceutical compositions comprising other components or other phases than those described above. It may in particular be the formulation of care, hygiene or make-up compositions.
- This example describes the estolid compositions which were prepared.
- AGSatl more than 95% by weight of lauric acid, based on the total weight of AGSatl;
- AGSat2 more than 95% by weight of heptanoic acid, based on the total weight of AGSat2;
- AGSat3 more than 95% by weight nonanoic acid, based on the total weight of AGSat3.
- AGinsatl at least 90% by weight of oleic acids and less than 3% by weight of polyunsaturated compounds, relative to the total weight of AGinsatl;
- AGinsat2 88% by weight of oleic acids and 3 to 8% by weight of polyunsaturated compounds, relative to the total weight of AGinsat2;
- AGinsat3 83% by weight of oleic acids and 3 to 10% by weight of polyunsaturated compounds, relative to the total weight of AGinsat3.
- OH1 more than 95% by weight of 3-methyl butanol, relative to the total weight of OH1;
- OH2 more than 95% by weight of 2-octanol, relative to the total weight of OH2;
- OH3 more than 95% by weight of 2-ethylhexanol, relative to the total weight of OH3.
- ester ester compositions are prepared by two methods, one involving separation of monoestolides from polyestolides and the other not involving such separation.
- the catalyst used is perchloric acid.
- the preparation process comprises the steps: a) addition reaction of the saturated fatty acid composition to the unsaturated fatty acid composition in the presence of the catalyst at a temperature of 60 ° C to obtain an acid estolide composition, and b) optionally a separation step by vacuum distillation making it possible to separate the acidic monoestolides from the acidic polyestolides in order to obtain a treated acidic estolides composition, and c) esterification reaction of the acidic estolides of the acidic estolides composition (C3) using the composition of alcohols (C4) at a temperature of 30 ° C, in order to obtain an ester-ester composition.
- Example 2 Evaluation of the sensory properties of estolide compositions The esteride ester compositions prepared in Example 1 were tested and evaluated in terms of sensory properties.
- the products are evaluated from a sensory point of view by a panel made up of 5 members. Among these 5 members, three are graduates in aesthetics.
- the criteria to be assessed are strictly defined by the panelists prior to the study. The criteria are defined as follows: penetration: when the product is applied, it disappears quickly. Does not leave residue on the skin.
- Odor after application, the odor assessment is carried out on the applied area.
- Irritation After application, the irritation assessment is carried out on the applied area. Squealing: when the product does not slip, sticks to the application, it is said to be squeaky (the reverse of soft)
- the sensory and organoleptic analysis by the panel is carried out on the underside of the forearm by depositing the same amount of each composition to be tested using a spatula, then the product is applied using the fingers .
- the amount of product applied is reproducible for the same tester.
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Abstract
Description
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2002719A FR3108255B1 (fr) | 2020-03-19 | 2020-03-19 | Composition d’estolides pour applications topiques |
| PCT/FR2021/050440 WO2021186131A1 (fr) | 2020-03-19 | 2021-03-17 | Composition d'estolides pour applications topiques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4120994A1 true EP4120994A1 (fr) | 2023-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21718938.0A Pending EP4120994A1 (fr) | 2020-03-19 | 2021-03-17 | Composition d'estolides pour applications topiques |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US12076429B2 (fr) |
| EP (1) | EP4120994A1 (fr) |
| JP (1) | JP2023518685A (fr) |
| KR (1) | KR20220156532A (fr) |
| CN (1) | CN115605178A (fr) |
| FR (1) | FR3108255B1 (fr) |
| WO (1) | WO2021186131A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025252945A1 (fr) * | 2024-06-06 | 2025-12-11 | Unilever Ip Holdings B.V. | Compositions nettoyantes contenant des nanoémulsions d'oligomères |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1247519A1 (fr) * | 2001-04-06 | 2002-10-09 | Cognis Deutschland GmbH & Co. KG | Emulsion pulvérisable |
| GB2433439A (en) * | 2005-12-21 | 2007-06-27 | Ciba Sc Holding Ag | Use of transmission dyes to protect human skin from UV radiation |
| JP2008174514A (ja) * | 2007-01-22 | 2008-07-31 | Kao Corp | 油中水型乳化化粧料 |
| EP2070508B1 (fr) * | 2007-12-14 | 2018-08-22 | Johnson & Johnson GmbH | Composition de soin dermatologique |
| FR2964865B1 (fr) * | 2010-09-16 | 2012-09-21 | Oreal | Composition cosmetique comprenant un compose d'acide cucurbique et un ester d'acide gras |
| EP2701675A1 (fr) | 2011-07-08 | 2014-03-05 | Biosynthetic Technologies, LLC | Compositions et produits contenant des composés d'estolide |
| US9139792B2 (en) * | 2012-06-04 | 2015-09-22 | Biosynthetic Technologies, Llc | Processes of preparing estolide base oils and lubricants that include transesterification |
-
2020
- 2020-03-19 FR FR2002719A patent/FR3108255B1/fr active Active
-
2021
- 2021-03-17 EP EP21718938.0A patent/EP4120994A1/fr active Pending
- 2021-03-17 KR KR1020227030434A patent/KR20220156532A/ko active Pending
- 2021-03-17 WO PCT/FR2021/050440 patent/WO2021186131A1/fr not_active Ceased
- 2021-03-17 CN CN202180018249.3A patent/CN115605178A/zh active Pending
- 2021-03-17 JP JP2022552738A patent/JP2023518685A/ja active Pending
- 2021-03-17 US US17/909,038 patent/US12076429B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220156532A (ko) | 2022-11-25 |
| WO2021186131A1 (fr) | 2021-09-23 |
| US20230107326A1 (en) | 2023-04-06 |
| FR3108255A1 (fr) | 2021-09-24 |
| US12076429B2 (en) | 2024-09-03 |
| JP2023518685A (ja) | 2023-05-08 |
| FR3108255B1 (fr) | 2024-04-19 |
| CN115605178A (zh) | 2023-01-13 |
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