WO2003002636A1 - Procede de stabilisation d'une dispersion aqueuse d'une emulsion huile dans l'huile silicone - Google Patents
Procede de stabilisation d'une dispersion aqueuse d'une emulsion huile dans l'huile silicone Download PDFInfo
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- WO2003002636A1 WO2003002636A1 PCT/FR2002/002279 FR0202279W WO03002636A1 WO 2003002636 A1 WO2003002636 A1 WO 2003002636A1 FR 0202279 W FR0202279 W FR 0202279W WO 03002636 A1 WO03002636 A1 WO 03002636A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
Definitions
- the present invention relates to a formulation stabilization process comprising up to about 40% by weight of surfactants and at least one organic, mineral oil and / or a derivative.
- the present invention therefore relates to a process for stabilizing an aqueous formulation comprising one or more surfactants with a content of up to 40% by weight of the formulation, and comprising at least one organic phase chosen from oils / fats / organic or mineral waxes, products from alcoholysis of these oils / fats / waxes, essential oils, mono-, di- and tri- glycerides, fatty acids, esters of such acids, alcohols, alone or in combination; in which an emulsion is introduced into the aqueous formulation: - the continuous phase of which is at least one silicone, the dispersed phase is the abovementioned organic phase; - And stabilized by at least one comb or block copolymer, one fraction of which is soluble in the dispersed phase, the other in the continuous phase, the fraction soluble in the continuous phase being greater than the fraction soluble in the dispersed phase.
- an organic phase chosen from oils / fats / organic or mineral waxes, products from alcoholysis of these
- the method according to the invention by isolating / protecting an organic and / or mineral oil / wax / fat and / or derivative of the formulation makes it possible to avoid any degradation of this compound, or any destabilization of the formulation, in particular of the phases structured surfactants if they exist.
- the stabilized formulations according to the invention retain the properties provided by hules / waxes / fats as well as their characteristics such as coloring, odor, etc.
- the invention makes it possible to combine, in the same formulation, on the one hand a silicone whose conditioning effect on the hair can be exerted on application, and on the other hand an oil / wax / grease whose nourishing / repairing effect of the hair will only be obtained after diffusion of this oil through the silicone barrier once deposited on the hair.
- the method according to the invention is also a means of vectorizing said oils / waxes / fats.
- the sensory effect resulting from the application of a formulation comprising the emulsion or one of the dispersions according to the invention can be favorably modified, as can the texture of the formulation.
- the emulsion is such that the organic phase, which represents the dispersed phase, is chosen from oils / fats / organic or mineral waxes, the products obtained from the alcoholysis of these oils / fats / waxes, essential oils, mono-, di- and tri-glycerides, fatty acids, esters of such acids, alcohols, alone or in combination.
- the organic phase which represents the dispersed phase
- organic oils / fats / waxes of animal origin mention may be made, among others, of sperm whale oil, whale oil, seal oil, shark oil, cod liver oil, pork and mutton fats (tallow), perhydrosqualene, beeswax, alone or in a mixture.
- organic oils / fats / waxes of vegetable origin there may be mentioned, inter alia, rapeseed oil, sunflower oil, peanut oil, olive oil , walnut oil, corn oil, soybean oil, avocado oil, linseed oil, hemp oil, grape seed oil, copra, palm oil, cotton seed oil, babassu oil, jojoba oil, sesame oil, castor oil, macadamia oil, d oil sweet almond, carnauba wax, shea butter, cocoa butter, peanut butter, alone or in a mixture.
- mineral oils / waxes there may be mentioned, inter alia, naphthenic, paraffinic (petrolatum), isoparaffinic oils, paraffinic waxes, alone or as a mixture.
- oils can also be used.
- essential oils that may be mentioned without intending to be limited thereto, the oils and / or essences of mint, spearmint, peppermint, menthol, vanilla, cinnamon, laurel, anise, d 'eucalyptus, thyme, sage, cedar leaf, nutmeg, citrus (lemon, lime, grapefruit, orange), fruit (apple, pear, peach, cherry, plum, strawberry, raspberry, apricot , pineapple, grape, etc.), alone or in mixtures.
- fatty acids are more particularly mono- or polycarboxylic acids, saturated or not, comprising 10 to 40 carbon atoms, more particularly 18 to 40 carbon atoms, and which may comprise one or more ethylenic unsaturations, conjugated or not . It should be noted that said acids may optionally include one or more hydroxyl groups.
- saturated fatty acids mention may be made of palmitic, stearic and behenic acids.
- unsaturated fatty acids there may be mentioned myristoleic, palmitoleic, oleic, erucic, linoleic, linolenic, arachidonic, ricinoleic acids, as well as their mixtures.
- fatty acid esters mention may be made, for example, of the esters of the acids previously listed, for which the part deriving from the alcohol comprises 1 to 6 carbon atoms, such as the methyl, ethyl esters , propyl, isopropyl, etc.
- alcohols mention may be made of those comprising 2 to 40 carbon atoms, saturated or not, and which may optionally comprise one or more additional hydroxyl groups. More particularly, ethanol and the alcohols corresponding to the abovementioned acids may be suitable.
- the organic phase can likewise be chosen from mono-, di- and triglycerides.
- the organic phase can comprise a mixture of several of the compounds which have just been listed.
- the dispersed organic phase comprises an amount of water which does not exceed the solubility limit of water in said phase (at a temperature between 20 and 30 ° C ).
- the silicone is chosen so that it is not miscible with the dispersed organic phase.
- immiscible is meant any liquid which, at room temperature, has a solubility in another liquid not exceeding 10% by weight.
- silicones which may be suitable for implementing the invention, mention may be made, alone or in mixtures, of the silicones constituted in whole or in part of units of formula:
- - a is an integer from 0 to 3;
- radicals R are identical or different and represent:
- radicals R ′ are identical or different and represent:
- radicals R represent a methyl group.
- These silicones can optionally comprise, preferably less than 5 mol%, units of formulas T and / or Q: RSiO 32 (motif T) and / or SiO 2 (motif Q) formula in which R has the definition given above.
- aliphatic or aromatic hydrocarbon radicals R there may be mentioned the groups: - alkyl, preferably C 1 -C 6 alkyl optionally halogenated, such as methyl, ethyl, octyl, trifluoropropyl;
- alkenyl preferably C 2 -C 10 alkenyl, such as vinyl, allyl, hexenyl, decenyl, decadienyl;
- polar organic groups R there may be mentioned the groups:
- alkyl is meant a hydrocarbon chain preferably in CrC 10 , more preferably in C Ce; examples of these groups are - (CH 2 ) 3 -OH; - (CH 2 ) 4 N (CH 2 CH 2 OH) 2 ; - (CH 2 ) 3 -N (CH 2 CH 2 OH) -CH 2 -CH 2 -N (CH2CH 2 OH) 2 ;
- carboxyalkyl optionally interrupted by one or more oxygen or sulfur atoms where alkyl is as defined above; an example is the group -CH 2 -CH 2 -S-CH 2 -COOH.
- radicals R ' of: - alkyl, preferably C 1 -C 10 alkyl optionally halogenated, such as methyl, ethyl, octyl, trifluoropropyl;
- - aryl preferably C 6 -C 13 , such as phenyl; - aminofunctional such as alkyl or aryl substituted by amino, alkyl preferably being C r C 6 and aryl denoting a cyclic aromatic group preferably C 6 -C 3 hydrocarbon such as phenyl; examples are ethylamino, phenylamino; - amidofunctional such as alkylcarbonylamino where alkyl is preferably C ⁇ -C 6 ; examples are methylacetamido.
- the silicones contain reactive and / or polar radicals R (such as OH, vinyl, allyl, hexenyl, aminoalkyls, etc.), the latter generally do not represent more than 5% of the weight of the silicone, and preferably not more than 1% of the weight of the silicone.
- R reactive and / or polar radicals
- volatile oils such as hexamethyldisiloxane, octamethyldisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, tetradecamethylhexasiloxane, hexadecamethylhexa siloxane; heptamethyl-3 [(trimethyl-silyl) oxy] trisiloxane, hexamethyl-3,3 bis [(trimethyl-silyl) oxy] trisiloxane; hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, pentamethyl [(tri-methylsilyl) oxy] cyclotrisiloxane.
- non-volatile silicones such as polydimethylsiloxane and ⁇ , ⁇ -bis (hydroxy) polydimethylsiloxane oils and gums as well as polydimethylsiloxane, polyphenylmethylsiloxane and ⁇ , ⁇ -bis (hydroxy) poly dimethylsiloxane gums can likewise be used.
- ⁇ , ⁇ -bis (trimethyl) polydimethyl siloxane oils the ⁇ , ⁇ -bis (hydroxy) polydimethyl siloxane oils.
- the proportion by weight of dispersed organic phase relative to the continuous silicone phase is more particularly between 10/90 and 90/10, preferably between 30/70 and 50/50.
- One of the characteristics of the invention is that the oil-in-oil emulsion is stabilized by the presence of at least one comb or block copolymer, one fraction of which is soluble in the dispersed phase, the other in the continuous phase. .
- the Bancroft rule can be applied to this copolymer since the fraction soluble in the continuous phase is greater than the fraction soluble in the dispersed phase.
- said copolymer is chosen from those which are soluble in silicone. More particularly, the term “soluble” is intended to denote copolymers which, when mixed with silicone, at a concentration of between 0.1 and 10% by weight of said silicone and at 20 ° C., are in the form of '' a solution in all or part of the concentration range indicated.
- said copolymer is chosen from those which, when mixed with the dispersed organic phase, at a concentration of between 0.1 and 10% by weight of said organic phase and at 20 ° C., are in the form of a dispersion in all or part of the concentration range indicated. Indeed, the copolymer is only partially soluble in the organic phase.
- the said copolymer used is that which, at a given concentration in the range indicated above and at 20 ° C., is present simultaneously in the form of a solution in silicone and in the form of a dispersion in the organic phase. It is stated for information only that the copolymer has a number molar mass less than or equal to 100,000 g / mol, more particularly between 1,000 and 50,000 g / mol.
- the molar mass in number is here given with an absolute value, and can be advantageously determined by combining MALLS (multi-angle light scattering) analyzes and gel permeation chromatography. Note that this method is particularly suitable for copolymers of any mass.
- NMR which also gives an absolute value for the masses of copolymer.
- each of the blocks of the copolymer represented a polymer (same size and composition as the blocks)
- the monomers constituting each of the blocks would be chosen so that each polymer is soluble, under the temperature and concentration conditions mentioned above, either in silicone (for the polymer deriving from blocks soluble in silicone) or in the organic phase (for the polymer deriving from blocks soluble in the organic phase).
- the fraction of the copolymer which is soluble in silicone derives from a polysiloxane which can be chosen from the silicones mentioned above.
- the polysiloxane carries reactive functions, such as the functions -OH, -NH2, among others.
- fraction soluble in the organic phase this is preferably derived from the polymerization of at least one monomer chosen from the following monomers:
- esters of mono- or polycarboxylic acids linear, branched, cyclic or aromatic, comprising at least one ethylenic unsaturation
- said monomers can be chosen from: - esters of (meth) acrylic acid with an alcohol comprising 1 to 12 carbon atoms such as methyl (meth) acrylate, ethyl (meth) acrylate, ( propyl meth) acrylate, n-butyl (meth) acrylate, t-butyl (meth) acrylate, isobutyl (meth) acrylate, 2-ethylhexylacrylate, hydroxyethyl (meth) acrylate; - vinyl acetate (used to obtain partially or fully deacetylated polyvinyl alcohol), vinyl Versatate®, vinyl propionate, vinyl chloride, vinylidene chloride, methyl vinyl ether, ethyl vinyl ether , (me
- macromonomer designates a macromolecule carrying one or more polymerizable functions.
- fraction soluble in the organic phase of the copolymer used as stabilizer of the emulsion can be obtained from the abovementioned monomers, combined with monomers of different chemical nature, such as for example hydrophilic monomers, non-ionic or ionic.
- ionic hydrophilic monomers more particularly anionic or potentially anionic depending on the pH conditions, there may be mentioned in particular: - linear, branched, cyclic or aromatic mono- or polycarboxylic acids, N-substituted derivatives of such acids, monoesters of polycarboxylic acids, comprising at least one ethylenic unsaturation;
- monomers capable of this type may be suitable, in acid form or in the form of an alkali metal salt (sodium, potassium), or of ammonium:
- nonionic hydrophilic monomers there are inter alia the amides of mono- or polycarboxylic acids, linear, branched, cyclic or aromatic, comprising at least one ethylenic unsaturation or derivatives, such as (meth) acrylamide, N-methyloI ( meth) acrylamide; certain esters derived from (meth) acrylic acid such as for example 2-hydroxyethyl (meth) acrylate; vinyl esters making it possible to obtain polyvinyl alcohol blocks after hydrolysis, such as vinyl acetate, vinyl Versatate®, vinyl propionate.
- the copolymer entering into the composition of the emulsion is obtained in part from hydrophilic monomers, it is specified that their content is such that the copolymer meets the criteria set out above, namely the fact that a fraction of said copolymer is soluble in the continuous phase of the emulsion, the other in the dispersed phase; the fraction soluble in the liquid constituting the continuous phase of the emulsion being higher than that soluble in the dispersed phase.
- the polymer used in the composition of the emulsion is a linear block polymer.
- said copolymer comprises at least three blocks.
- copolymers which can be used in the context of the present invention can be obtained, advantageously, by radical route, preferably controlled.
- such polymers can be obtained by implementing a process for the preparation by thermal activation of silicone and organic hybrid copolymers comprising units (I):
- - x is equal to 0, 1, 2 or 3
- y is equal to 0, 1, 2 or 3 with 2 ⁇ (x + y) ⁇ 3 and y is different from 0 for at least one of the units of the hybrid copolymer
- a linear or branched alkyl radical containing 1 to 8 carbon atoms optionally substituted with at least one halogen, preferably fluorine, the alkyl radicals preferably being methyl, ethyl, propyl, octyl and 3,3,3-trifluoropropyl,
- an aralkyl part having an alkyl part containing between 5 and 14 carbon atoms and an aryl part containing between 6 and 12 carbon atoms, optionally substituted on the aryl part by halogens, alkyls and / or alkoxyls containing 1 to 3 carbon atoms,
- - Z identical or different, represent a carbon, sulfur, oxygen, phosphorus, nitrogen atom and / or a free valence
- R identical or different, representing an alkyl or aryl group, and / or a polymer chain
- R6, R 7 are chosen from a halogen group, -NO 2 , -SO3R 10 , -NCO, -ON, -OR 10 , -SR 10 , -N (R 10 ) 2 , -COOR 10 , -O CR 10 , -CON (R 10 ) 2 , -NCO (R 10 ) and -C n F (2 n + i) with n between 1 and 20, preferably equal to 1; - with R 10 representing:
- R 10 represents a group as defined above for R 10 ; or together form a C2-C4 hydrocarbon chain, optionally interrupted by a heteroatom chosen from O, S and N;
- - V and V identical or different, represent: H, an alkyl group or a halogen
- - X and X identical or different, represent H, a halogen or a group
- S-alkyl, S-aryl, groups having a hydrophilic or ionic character such as the alkali salts of carboxylic acids, the alkali salts of sulfonic acid, the polyalkylene oxide chains (POE, POP), the substituents
- R identical or different, representing an alkyl or aryl group, and / or a polymer chain
- radicals (i), (ii) and (iii) which can be advantageously substituted by: substituted phenyl groups, substituted aromatic groups, or
- R identical or different, representing an alkyl or aryl group, and / or a polymer chain
- - W identical or different, represent a divalent radical chosen from -O-,
- - Sp identical or different, represent a ball joint consisting of a divalent organic radical of formula - (CH 2 ) X "- in which x '" is between 1 and
- this radical possibly being substituted and / or containing at least one heteroatom
- the radical polymerization initiator can be chosen from the initiators conventionally used in radical polymerization. It may, for example, be one of the following initiators: - hydrogen peroxides, such as tertiary butyl hydroperoxide, cumene hydroperoxide, t-butyl-peroxyacetate, t-butylperoxybenzoate, t-butylperoxyoctoate , t-butylperoxineodecanoate, t-butylperoxyisobutarate, lauroyl peroxide, t-amylperoxypivalte, t-butylperoxypivalate, peroxide dicumyl, benzoyl peroxide, potassium persulfate, ammonium persulfate,
- - azo compounds such as: 2-2'-azobis (isobutyronitrile), 2,2'-azobis (2-butanenitrile), 4,4'-azobis (4-pentanoic acid), 1,1 ' -azobis (cyclohexane- carbonitrile), 2- (t-butylazo) -2-cyanopropane, 2,2'-azobis [2-methyl-N- (1,1) - bis (hydroxymethyl) -2-hydroxyethyl] propionamide, 2,2'-azobis (2-methyl-N-hydroxyethyl] -propionamide, 2,2'-azobis dichloride (N, N'-dimethylene isobutyramidine), 2,2'-azobis dichloride ( 2-amidinopropane), 2,2'-azobis (N, N'-dimethyleneisobutyramide), 2,2'-azobis (2-methyl-N- [1,1-bis (hydroxymethyl) -2-hydroxyethyl] propionamide ), 2,2'-azo
- - redox systems comprising combinations such as: mixtures of hydrogen peroxide, of alkyl, peresters, percarbonates and the like and of any of the iron salts, titanous salts, zinc formaldehyde sulfoxylate or formaldehyde sulfoxylate sodium, and reducing sugars; persulfates, perborate or perchlorate of alkali metals or ammonium in combination with an alkali metal bisulfite, such as sodium metabisulfite, and reducing sugars; alkali metal persulfates in combination with an arylphosphinic acid, such as benzene phosphonic acid and the like, and reducing sugars.
- the amount of initiator to be used is determined so that the amount of radicals generated is at most 20 mol% relative to the amount of silicone precursor compound (IV), preferably at most 5% mole.
- ethylenically unsaturated monomer those which have been mentioned above are used to define the fraction of the copolymer soluble in the dispersed organic phase of the emulsion.
- the amides of vinylamine for example vinylformamide or vinylacetamide, are preferably used as ethylenically unsaturated monomers. Then the copolymer obtained is hydrolyzed at acidic or basic pH.
- the hybrid silicone and organic copolymer consists of a linear silicone skeleton comprising from 1 to 300 units of formula (I), preferably 1 to 200, and bearing from 1 to 50 U radicals, preferably 1 to 10.
- At least one of the monovalent radicals U ′ is preferably of formula (VI):
- R and R identical or different, represent a hydrogen atom, a cyano, allkoxycarbonyl, alkyl, acyl, aryl, alkene or alkyne group optionally substituted; and W is of definition identical to that given previously, and preferably is equal to an oxygen atom.
- silicone precursors in which U 'corresponds to:
- At least part of the monovalent radicals U 'of (s) precursors) silicone (s) (IV) and therefore at least part of the U groups of the hybrid copolymer obtained are such that Z is an oxygen atom and / or a sulfur atom.
- the hybrid silicone and organic copolymer according to the invention can comprise units R ⁇ UyF z SiO [4- ( x + y + z )] / (XIV) in which:
- - x is equal to 0, 1, 2 or 3
- y is equal to 0, 1 2 or 3
- z is equal to 1, 2 or 3 with with 2 ⁇ (x + y + z) ⁇ 3
- - And F is a group carrying at least one function such as hydroxy, aikoxy, thiol, amine, epoxy and / or polyether.
- These groups F can optionally provide complementary and / or additional properties to the hybrid copolymers prepared according to the process of the invention. They can in particular be contained initially within the silicone precursor of formula (IV).
- the process which has just been described makes it possible to prepare hybrid polymers carrying organic block groups (that is to say multiblock).
- the process consists in repeating the implementation of the preparation process described above using:
- this polymerization process of block copolymers has the advantage of leading to block copolymers having a low polydispersite index. It also makes it possible to control the molecular mass of block polymers.
- the precursor silicone compound of general formula (IV) used within the process for the preparation of hybrid copolymers according to the invention can be obtained by reaction: (i) of a silicone comprising units of formula (VII):
- 2+ represents an alkaline earth metal such as Ca 2+ , Ba 2+ and Sr 2 ++ ,
- - M ' represents Zn, Cd, m is equal to 1 or 2, n is equal to 1, 2, 3 or 4 and preferably m is equal to 1 and n is equal to 2.
- This silicone of formula (VII) can in particular be obtained from (i) of a silicone comprising units of formula (XII): R x U "'ySiO [4. ( x + y)] / 2 where the monovalent radical U '"is of formula (XIII): -Sp-WH and (ii) of a compound of formula:
- the polymerization can be carried out in bulk, in solution or in emulsion. Preferably, it is used as an emulsion.
- the method is implemented semi-continuously.
- the temperature can vary between room temperature and 150 ° C depending on the nature of the monomers used.
- the instantaneous content of copolymer relative to the instantaneous amount of monomer and copolymer is between 50 and 99% by weight, preferably between 75 and 99%, even more preferably between
- This content is maintained, in known manner, by controlling the temperature, the rate of addition of the reagents and the polymerization initiator.
- the amount of copolymer represents from 0.5 to 10% by weight of the dispersed phase, preferably between 1 and 4% by weight relative to the same reference.
- the dispersed phase of the emulsion may also comprise at least one active material soluble in said phase (hydrophobic active material). More particularly, the active ingredient (s) are chosen from the active ingredients which can be used in the field of skin and / or hair treatment. Among them are in particular, alone or in mixtures:
- vitamins such as vitamin A and its derivatives, in particular its esters such as acetate, palmitate, propionate, vitamin B2, pantothenic acid, vitamin D and vitamin E;
- UV absorbers such as PABA and PARA type aminobenzoate derivatives, salicylates, cinnamates, anthranilates, dibenzoylmethanes, camphor derivatives; anti-aging agents such as in particular retinoids, fat-soluble vitamins, vitamin C derivatives such as esters of the acetate, propionate or palmitate type; ceramides, pseudoceramides, phospholipids, fatty acids, fatty alcohols, cholesterol, sterols and their mixtures.
- preferred fatty acids and alcohols mention may more particularly be made of those having linear or branched alkyl chains containing from 12 to 20 carbon atoms. It can in particular be linoleic acid;
- - anti-cellulite agents such as in particular isobutylmethylxanthine and theophyline
- - anti-acne agents such as for example resorcinol, resorcinol acetate, benzoyl peroxide and many natural compounds
- bactericides such as for example resorcinol, resorcinol acetate, benzoyl peroxide and many natural compounds
- the antimicrobial agents can be chosen from thymol, menthol, triclosan, 4-hexylresorcinol, phenol, eucalyptol, benzoic acid, benzoic peroxide, butyl paraben;
- fixative resins in particular chosen from those which will be described below, as well as fixing and / or styling agents for the hair, such as for example vinyl acetate / crotonate / vinyl neodecanoate copolymers, sold under the name Resyn® 28- 2942 and Resyn® 28-2930 from National Starch.
- the dispersed phase comprises one or more hydrophobic active materials
- the active material (s) are not also used as the dispersed organic phase, their content represents more particularly 10 to 50% by weight of said organic phase dispersed.
- dispersed organic phase itself can be considered as a hydrophobic active material.
- the emulsion used in the process according to the invention can be obtained for example by preparing, on the one hand a first mixture comprising the dispersed organic phase optionally comprising one or more active materials, and on the other hand, a second mixture comprising silicone and polymer; then add the first mixture to the second, with stirring.
- the stirring is preferably strong and can be, advantageously, provided by the use of an apparatus of the Ultra-Turrax® type, Microfluidizer, or any high pressure homogenizer.
- the stirring can advantageously be carried out by means of a frame blade.
- the preparation of the emulsion is generally carried out at a temperature between 20 and 80 ° C.
- the duration of the agitation can be determined without difficulty by a person skilled in the art and depends on the type of apparatus used. It is preferably sufficient for obtain an average droplet size of between 0.1 and 10 ⁇ m, preferably between 0.1 and 5 ⁇ m (measured using a Horiba granulometer).
- the aqueous formulations stabilized by the process according to the invention comprise up to 40% by weight of surfactant (s), preferably up to 25% by weight of surfactant (s). Furthermore, the aqueous formulations comprise at least 2% by weight of surfactant (s), more particularly at least 5% by weight of surfactant (s), preferably at least 10% by weight of surfactant (s).
- the content of emulsion in the aqueous formulation is preferably such that the content of dispersed phase (oil / wax / fat and / or derivative), optionally associated with an active material soluble in said dispersed phase, is between 0.01 and 50% by weight of the aqueous formulation.
- aqueous formulations are more particularly used in the field of skin and / or hair treatment and in particular as shampoos for hair or for the body, face or body cleaning gels, liquid soaps, foaming compositions for the bath. , conditioners, formulations for styling or to facilitate combing of hair, among others.
- anionic surfactants - alkyl esters sulfonates, alkylbenzenesulfonates, primary or secondary alkylsulfonates, alkylglycerol sulfonates, sulfonated polycarboxylic acids, paraffin sulfonates;
- nonionic surfactants which can be used in the formulations, the following are suitable:
- alkylpolyglycosides such as those described in US 4,565,647; - fatty acid amides, for example C8-C20; alone or as a mixture.
- the formulations can likewise include cationic surfactants such as alkyl dimethylammonium halides, or alternatively amphoteric or zwitterionic surfactants, such as for example betaines, for example lauryl betaine (Mirataine BB from the company Rhodia Chimie); sulfo-betaines; amidoalkylbetaines, such as cocamidopropyl betaine (Mirataine BDJ from the company Rhodia Chimie); sultaines such as cocamidopropyl hydroxy sultaine (Mirataine CBS from the company Rhodia Chimie); alkylamphoacetates and alkylamphodiacetates, such as for example comprising a coconut, lauryl chain (Miranol C2M, C32 in particular, from the company Rhodia Chimie); alkylamphopropionates or alkylamphodipropionates, (Miranol C2M SF); alkyl amphohydroxypropyl sultaine
- bactericidal or fungicidal agents in order to improve the disinfection of the skin, such as for example triclosan; anti-dandruff agents, such as in particular zinc pyrithione or octopyrox; insecticidal agents such as natural or synthetic pyrethroids.
- the aqueous formulations may also contain agents for protecting the skin and / or the hair against the aggressions of the sun and UV rays.
- the compositions may include sunscreens which are chemical compounds which strongly absorb UV radiation, such as the compounds authorized in European directive N ° 76/768 / EEC, its annexes and the subsequent modifications of this directive.
- the aqueous formulations may also contain fixative resins. These fixative resins, when they are present, are generally present at concentrations of between 0.01 and 10%, preferably between 0.5 and 5%.
- the fixing resins used in the aqueous formulations are more particularly chosen from the following resins:
- copolyesters derived from acid, anhydride or a terephthalic and / or isophthalic and / or sulfoisophthalic diester and a diol such as: - polyester copolymers based on ethylene terephthalate and / or propylene terephthalate and polyoxyethylene terephthalate units , (US 3959230, US 3893929, US 4116896, US 4702857, US 4770666);
- copolymers comprising polyester units derived from dimethyl terephthalate, isophthalic acid, dimethyl sulfoisophthalate and ethylene glycol and from polyorganosiloxane units (FR 2728915).
- polyester copolymers based on propylene terephthalate and polyoxyethylene terephthalate units and terminated by ethyl or methyl units (US 4711730) or polyester oligomers terminated by alkylpolyethoxy groups (US 4702857) or sulfopolyethoxy (US 4721580) anionic groups, sulfoaroys US 4,877,896);
- polyesters-polyurethanes more particularly obtained by reaction of a polyester obtained from adipic acid and / or terephthalic acid and / or sulfoisophthalic acid and a diol, on a prepolymer with terminal isocyanate groups obtained with starting from a polyoxyethylene glycol and a diisocyanate (FR 2334698);
- the fixing resins are chosen from polyvinylpyrrolidone (PVP), copolymers of polyvinylpyrrolidone and methyl methacrylate, copolymer of polyvinylpyrrolidone and vinyl acetate (VA), polyterephthalene ethylene glycol / polyethylene glycol copolymers, polyterphide copolymers ethylene glycol / polyethylene glycol / sodium polyisophthalate sulfonate, and mixtures thereof.
- PVP polyvinylpyrrolidone
- VA vinyl acetate
- the aqueous formulations can also contain polymeric derivatives exerting a protective function.
- polymer derivatives can be present in amounts of the order of 0.01-10%, preferably about 0.1-5%, and most particularly of the order of 0.2-3% by weight.
- non-ionic cellulose derivatives such as cellulose hydroxyethers, methylcellulose, ethylcellulose, hydroxypropyl methylcellulose, hydroxybutyl methylcellulose;
- polyvinyl esters grafted on polyalkylenated trunks such as polyvinylacetates grafted on polyoxyethylene trunks (EP 219048); . polyvinyl alcohols.
- the aqueous formulations may also include plasticizers. Said agents, if present, can represent between 0.1 to 20% of the formulation, preferably from 1 to 15%.
- adipates phthalates, isophthalates, azelates, stearates, silicone copolyols, glycols, castor oil, or mixtures thereof.
- Humidants can also be incorporated into said aqueous formulations, including, among others, glycerol, sorbitol, urea, collagen, gelatin, aloe vera, hyaluronic acid or water-soluble volatile solvents such as ethanol or propylene glycol, the contents of which can reach up to 60% by weight of the composition.
- water-soluble or water-dispersible polymers such as collagen or certain non-allergenic derivatives of animal or vegetable proteins (wheat protein hydrolysates for example), natural hydrocolloids ( guar, carob, tara gum, etc.) or derived from fermentation processes and the derivatives of these polycarbohydrates such as non-ionic modified celluloses such as, for example, hydroxyethylcellulose, or anionic such as carboxymethylcellulose; guar or carob derivatives such as their nonionic derivatives (for example hydroxypropylguar) or anionic derivatives (carboxymethylguar and carboxymethylhydroxypropylguar).
- non-ionic modified celluloses such as, for example, hydroxyethylcellulose, or anionic such as carboxymethylcellulose
- guar or carob derivatives such as their nonionic derivatives (for example hydroxypropylguar) or anionic derivatives (carboxymethylguar and carboxymethylhydroxypropylguar).
- powders or mineral particles such as calcium carbonate, sodium bicarbonate, calcium dihydrogen phosphate, mineral oxides in powder form or in colloidal form (particles of smaller size or on the order of a micrometer, sometimes a few tens of nanometers) such as titanium dioxide, silica, aluminum salts generally used as antiperspirants, kaolin, talc, clays and their derivatives, etc. .
- preservatives agents as methyl, ethyl, propyl and butyl esters of p-hydroxybenzoic acid, sodium benzoate, Germaben ® or any chemical agent which prevents the proliferation of bacteria or mold that is conventionally used in aqueous formulations, can also be introduced into the stabilized aqueous formulations according to the invention, generally in the amount of 0.01 to 3% by weight.
- the quantity of these products is usually adjusted to avoid any proliferation of bacteria, molds or yeasts in aqueous formulations.
- Antioxidants can optionally be incorporated into the aqueous formulations.
- agents which modify the activity of water and greatly increase the osmotic pressure such as carbohydrates or salts.
- mineral particles such as zinc oxide, titanium dioxide or cerium oxides in the form of powder or particles. colloidal, alone or in mixture.
- These powders can optionally be surface treated to increase the effectiveness of their anti-UV action or to facilitate their incorporation into aqueous formulations or to inhibit surface photoreactivity.
- these ingredients can be added, if necessary, and with the aim of increasing comfort during the use of the composition by the consumer, one or more perfumes, coloring agents among which mention may be made of the products described in Annex IV ("List of coloring agents allowed for use in cosmetic products") of European Directive No. 76/768 / EEC of July 27, 1976, called the Cosmetic Directive, and / or opacifying agents such as pigments.
- the composition may also contain viscous or gelling polymers so as to adjust the texture of the composition, such as crosslinked polyacrylates (Carbopol sold by Goodrich), derivatives non-cationic cellulose such as hydroxypropylcellulose, carboxymethylcellulose, guars and their nonionic derivatives, xanthan gum and its derivatives, used alone or in combination, or the same compounds, generally in the form of water-soluble polymers modified by groups hydrophobes covalently linked to the polymer backbone as described in international application WO 92/16187 and / or water to bring the total of the constituents of the formulation to 100%.
- viscous or gelling polymers so as to adjust the texture of the composition, such as crosslinked polyacrylates (Carbopol sold by Goodrich), derivatives non-cationic cellulose such as hydroxypropylcellulose, carboxymethylcellulose, guars and their nonionic derivatives, xanthan gum and its derivatives, used alone or in combination, or the same compounds, generally in the form of water-soluble polymers
- the aqueous formulations can also contain polymeric dispersing agents in an amount of the order of 0.1-7% by weight, to control the hardness of calcium and magnesium, agents such as:
- the water-soluble salts of polycarboxylic acids with a molecular weight by weight of the order of 2000 to 100,000 g / mol obtained by polymerization or copolymerization of ethylenically unsaturated carboxylic acids such as acrylic acid, maleic acid or anhydride , fumaric acid, itaconic acid, aconitic acid, mesaconic acid, citraconic acid, methylenemalonic acid, and very particularly polyacrylates of molecular mass by weight of the order of 2000 to 10 000 g / mol (US 3308067), copolymers of acrylic acid and maleic anhydride with a molecular weight by weight of the order of 5000 to 75000 g / mol (EP 66915); . polyethylene glycols, for example of molecular weight by weight of the order of 1000 to 50,000 g / mol.
- They can also include sequestering agents of metals such as especially calcium, such as citrate ions for example.
- a white precipitate immediately forms with a slight increase in the temperature of the reaction medium.
- the aqueous phase is then separated from the organic phase.
- the cyclohexane is then evaporated.
- the crude product obtained is then filtered through a layer of silica.
- the solvents are then evaporated to recover the acylation product.
- the solvent is then evaporated under reduced pressure, then the solid obtained is mixed with ether and filtered through a frit. The solvent is then evaporated.
- 0.05 g of azobisisobutyronitrile are introduced into a glass reactor, at the same time as 20 g of PDMS oil described in Example 1a, 3.43 g of butyl acrylate and 70.3 g of cyclohexane.
- the mixture is heated at 70 ° C for 7 hours.
- the solvent is then evaporated.
- silicone oil (Rhodorsil 47V1000; sold by Rhodia Chimie) is added 1g of the copolymer obtained previously. Then the mixture is placed at 5 ° C and homogenized at 400 rpm with a full frame blade.
- An aqueous phase is prepared in which the emulsion will be dispersed comprising 16% of Empicol ESB3M (sodium laureth sulfate, sold by Rhodia Chimie); 2% Tegobetaine 7 (cocamidopropyl betaine, marketed by Goldschmidt) and 2% Miranol Ultra C32 (cocoamphodiacetate, marketed by Rhodia Chimie).
- Empicol ESB3M sodium laureth sulfate, sold by Rhodia Chimie
- Tegobetaine 7 cocamidopropyl betaine, marketed by Goldschmidt
- Miranol Ultra C32 cocoamphodiacetate
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Cosmetics (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/481,166 US20040241124A1 (en) | 2001-06-29 | 2002-07-01 | Method for stabilizing an aqueous dispersion of an oil in silicone oil emulsion |
| JP2003509013A JP2004534127A (ja) | 2001-06-29 | 2002-07-01 | シリコーン油中油型エマルジョンの水性分散液の安定化法 |
| EP02760371A EP1401922A1 (fr) | 2001-06-29 | 2002-07-01 | Procede de stabilisation d' une dispersion aqueuse d'une emulsion huile dans l'huile silicone |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0108652 | 2001-06-29 | ||
| FR0108652A FR2826568B1 (fr) | 2001-06-29 | 2001-06-29 | Procede de stabilisation de formulation a base de tensioactifs et comprenant une huile organique, minerale et/ ou derive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003002636A1 true WO2003002636A1 (fr) | 2003-01-09 |
Family
ID=8864947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2002/002279 Ceased WO2003002636A1 (fr) | 2001-06-29 | 2002-07-01 | Procede de stabilisation d'une dispersion aqueuse d'une emulsion huile dans l'huile silicone |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20040241124A1 (fr) |
| EP (1) | EP1401922A1 (fr) |
| JP (1) | JP2004534127A (fr) |
| FR (1) | FR2826568B1 (fr) |
| WO (1) | WO2003002636A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101431995B (zh) | 2006-02-21 | 2012-02-01 | 玫琳凯有限公司 | 稳定的维生素c组合物 |
| CN104768523B (zh) | 2012-10-29 | 2017-08-15 | 宝洁公司 | 10℃下具有0.30或更大损耗角正切值的个人护理组合物 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997017938A1 (fr) * | 1995-11-13 | 1997-05-22 | Unilever Plc | Composition cosmetique a base d'une emulsion a trois phases |
| WO2000071607A1 (fr) * | 1999-05-24 | 2000-11-30 | Unilever Plc | Copolymeres blocs de polysiloxane dans des compositions cosmetiques topiques et des compositions de soins personnels |
| EP1069150A2 (fr) * | 1999-07-12 | 2001-01-17 | Dow Corning Corporation | Emulsions huile-dans-huile et émulsions en trois phases |
| WO2002008307A1 (fr) * | 2000-07-25 | 2002-01-31 | Rhodia Chimie | Procede de synthese de copolymeres hybrides silicones et organiques par polymerisation radicalaire controlee |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4869897A (en) * | 1987-10-22 | 1989-09-26 | The Procter & Gamble Company | Photoprotection compositions comprising sorbohydroxamic acid |
-
2001
- 2001-06-29 FR FR0108652A patent/FR2826568B1/fr not_active Expired - Fee Related
-
2002
- 2002-07-01 EP EP02760371A patent/EP1401922A1/fr not_active Withdrawn
- 2002-07-01 JP JP2003509013A patent/JP2004534127A/ja active Pending
- 2002-07-01 US US10/481,166 patent/US20040241124A1/en not_active Abandoned
- 2002-07-01 WO PCT/FR2002/002279 patent/WO2003002636A1/fr not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997017938A1 (fr) * | 1995-11-13 | 1997-05-22 | Unilever Plc | Composition cosmetique a base d'une emulsion a trois phases |
| WO2000071607A1 (fr) * | 1999-05-24 | 2000-11-30 | Unilever Plc | Copolymeres blocs de polysiloxane dans des compositions cosmetiques topiques et des compositions de soins personnels |
| EP1069150A2 (fr) * | 1999-07-12 | 2001-01-17 | Dow Corning Corporation | Emulsions huile-dans-huile et émulsions en trois phases |
| WO2002008307A1 (fr) * | 2000-07-25 | 2002-01-31 | Rhodia Chimie | Procede de synthese de copolymeres hybrides silicones et organiques par polymerisation radicalaire controlee |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2826568B1 (fr) | 2005-09-02 |
| FR2826568A1 (fr) | 2003-01-03 |
| EP1401922A1 (fr) | 2004-03-31 |
| US20040241124A1 (en) | 2004-12-02 |
| JP2004534127A (ja) | 2004-11-11 |
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