Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
  • B65D83/752—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by the use of specific products or propellants

Definitions

• Aerosol device based on compositions of fixing materials allowing seamless styling between the hair
• the present invention relates to new aerosol devices for shaping and / or maintaining the hairstyle without the formation of welds between the hair.
• the fixing products which are applied in the form of an aerosol to dry hair are of practical use and provide strong and lasting shaping and maintenance of the hairstyle, but the hairstyles thus treated often have a frozen visual appearance. and an unnatural touch.
• Styling products that are applied to damp hair are less practical to use. They lead to weaker fixation when applied in small quantities. The visual aspect and the touch are more natural, however, than for fixing products. When applied in large quantities to dry hair, we can stick the hair between them and find both the fixing properties of fixing products and their problems related to the visual appearance and touch of the hair, without the benefits of their mode of application.
• the Applicant has now found that by selecting the diffusion parameters of the usual aerosol compositions, it was possible to combine the practical aspect of the use of fixing products and a good level of shaping of the hair, with the visual aspect. and the more natural feel associated with styling products.
• the present invention therefore relates to a new aerosol device for shaping and / or maintaining the hairstyle without the formation of welds between the hair.
• the fixing products for shaping and / or maintaining the hairstyle are spray compositions essentially consisting of a most often an alcoholic or aqueous solution of one or more materials, generally polymeric resins, the function of which is to form welds between the hair, also called fixing materials, in admixture with various cosmetic adjuvants.
• This solution is generally packaged either in a suitable aerosol container pressurized using a propellant, or in a pump bottle.
• the fixing materials applied to the hair do not form welds between the hair, but allow the hairstyle to be maintained, which is similar to that of the styling products.
• the diffusion parameters are selected so that little fixing material is deposited on the hair to avoid the formation of welds, but in sufficient quantity to ensure the maintenance of the hairstyle.
• the sufficient quantity of fixing material is expressed by the dry matter flow rate, while the maximum quantity of material deposited on the hair is expressed by the wetting power at 20 cm.
• the present invention therefore relates to a new aerosol device consisting of a container containing an aerosol composition consisting on the one hand of a liquid phase (or juice) containing at least one fixing material in an appropriate medium and on the other hand a propellant, and a means of distributing said aerosol composition, the device being suitable for obtaining a flow rate of dry matter less than or equal to approximately 12 mg / s and a wetting power at 20 cm less than or equal to approximately 100 mg / s.
• the dispensing means generally consists of a dispensing valve controlled by a dispensing head, itself comprising a nozzle by which the aerosol composition is vaporized.
• the dry matter flow rate corresponds to the quantity of dry extract which leaves the aerosol device per unit of time.
• the concentration of dry matter in the aerosol composition corresponds to the amount of dry matter reduced to 100 g of aerosol composition (juice + propellant).
• the dry matter concentration is expressed as a percentage and is measured after spraying by evaporation of the volatile components of the spray residue for 1 hour 30 minutes at 105 ° C.
• the flow rate of the aerosol composition (D CA ) corresponds to the quantity of aerosol composition (juice + propellant) leaving the aerosol device per unit of time. It is expressed in mg / s and is measured by the difference between the weight of the aerosol before (M 0 ) and after (M.,) 10 seconds of vaporization:
• the wetting power corresponds to the quantity of product received by a plastic sheet placed at a distance of 20 cm from the nozzle of the aerosol device during one unit. given time.
• the product then consists of the dry matter, plus a part of the solvent which has not evaporated during the journey, plus possibly a part of the propellant which has not evaporated.
• This wetting power is expressed in mg / s, and is measured according to the invention by the following method: a sheet of plastic material of dimensions 21 cm x 23 cm is hung vertically on a precision balance (1/1000), the sheet being connected to the balance by the upper edge (generally by a hook of the balance inserted in a perforation placed in the center of the width and 1 cm from the upper edge), and kept vertical by the application of a weight centered on the lower edge (generally by a clamp fixed and centered on the lower edge); - a wedge is placed behind the lower edge of the sheet to keep the sheet vertical during the impact of the product; the aerosol device is arranged vertically so that the nozzle for diffusing the composition is placed in the center and 20 cm from the vertical sheet, for a spraying of the product perpendicular to the sheet; - The composition is sprayed for 5 seconds; the quantity of product received on the vertical sheet is measured at the end of the spraying.
• an appropriate device comprising a means for supporting the aerosol device, and means allowing three-dimensional adjustment of the position of the nozzle relative to the vertical sheet.
• This device can also be equipped with a pneumatic spray control device (triggering and duration), so as to precisely control the duration of the spraying.
• the assembly can be controlled by a computer.
• the path of the product between the nozzle and the sheet will advantageously be protected horizontally and vertically by the walls of a tunnel of appropriate dimensions.
• the vaporization of the product is advantageously carried out under a controlled atmosphere, preferably at a temperature of 20 ° C and a relative humidity of 50%.
• the aerosol device according to the invention is suitable for obtaining a flow rate of dry matter of between 2 and 12 mg / s.
• the aerosol device according to the invention is suitable for obtaining a wetting power at 20 cm of between 10 mg / s and 100 mg / s, more preferably between 20 and 80 mg / s.
• the characteristics of dry matter flow rate and wetting power of the aerosol devices according to the invention depend on the one hand on the aerosol composition, and on the other hand on the distribution means, both of which must be suitable for obtaining the desired characteristics.
• the parameters likely to influence these characteristics there will be mentioned more particularly the dry matter concentration (C MS ), the flow rate of aerosol composition (D CA ) and the phase of the aerosol composition.
• the dry matter concentration (C MS ) is less than or equal to 6% by weight relative to the total weight of the aerosol composition (juice + propellant), preferably between 0.4 and 5% by weight. weight, more preferably between 0.6 and 3.25% by weight.
• the flow rate in aerosol composition (D CA ) will then be appropriate to obtain a dry matter flow rate (D MS ) as defined above.
• D CA dry matter flow rate
• the D CA will be greater than or equal to 200 mg / s, advantageously between 200 and 600 mg / s, more preferably between 300 and 400 mg / s.
• the phase of the aerosol composition is preferably a long phase, that is to say that the weight ratio of juice / propellant is greater than 1, more preferably between 1, 2 and 3.
• the fixing material essentially consists of at least one fixing polymer, alone or in combination with usual cosmetic additives, for example plasticizers, or neutralizing agents.
• the fixing material having a glass transition temperature (Tg) greater than or equal to 30 ° C.
• glass transition temperature Tg is understood to mean, according to the present invention, the Tg of the fixing material in the dry extract, the dry extract consisting of all of the non-volatile materials in the juice, or dry matter.
• any fixing polymer known per se can be used. It is possible in particular to use a fixing polymer chosen from anionic, cationic, amphoteric, nonionic polymers and their mixtures.
• the fixing polymers can be used in dissolved form or in the form of dispersions of solid polymer particles.
• the cationic fixing polymers which can be used according to the present invention are preferably chosen from polymers comprising primary, secondary, tertiary and / or quaternary amine groups forming part of the polymer chain or directly linked thereto, and having a molecular weight of between 500 and around 5,000,000 and preferably between 1,000 and 3,000,000.
• the fixing polymers are preferably anionic or amphoteric polymers.
• the anionic fixing polymers generally used are polymers comprising groups derived from carboxylic, sulfonic or phosphoric acid and have a weight-average molecular weight of between approximately 500 and 5,000,000. 1)
• the carboxyl groups are provided by mono or unsaturated carboxy diacid monomers such as those corresponding to the formula:
• n is an integer from 0 to 10
• a ! denotes a methylene group, optionally linked to the carbon atom of the unsaturated group or to the neighboring methylene group when n is greater than 1 via a heteroatom such as oxygen or sulfur
• RJ Q denotes a hydrogen atom, a phenyl or benzyl group
• Rg denotes a hydrogen atom, a lower alkyl or carboxyl group
• Rg denotes a hydrogen atom, a lower alkyl group, a -CH2-COOH, phenyl or benzyl group
• a lower alkyl radical preferably denotes a group having 1 to 4 carbon atoms and in particular, methyl and ethyl.
• the preferred anionic fixing polymers with carboxyl groups according to the invention are:
• copolymers of acrylic or methacrylic acids with a monoethylenic monomer such as ethylene, styrene, vinyl esters, esters of acrylic or methacrylic acid can be grafted onto a polyalkylene glycol such as polyethylene glycol and optionally crosslinked.
• a polyalkylene glycol such as polyethylene glycol and optionally crosslinked.
• Such polymers are described in particular in French patent 1,222,944 and German application 2,330,956. Mention may in particular be made of the copolymers comprising in their chain an acrylamide unit optionally N-alkyl and / or hydroxyalkylated as described in particular in the applications for Luxembourg patents 75370 and 75371 or offered under the name QUADRAMER by the company AMERICAN CYANAMID.
• lauryle such as that sold by the company ISP under the name ACRYLIDONE LM
• tertiobutyl (LUVIFLEX VBM 70 sold by BASF) or methyl (STEPANHOLD EXTRA sold by STEPAN)
• methacrylic acid / ethyl acrylate / acrylate terpolymers tert-butyl such as the product sold under the name LUVIMER 100 P by the company BASF.
• copolymers comprising (i) one or more maleic, fumaric, itaconic acids or anhydrides and (ii) at least one monomer chosen from vinyl esters, vinyl ethers, vinyl halides, phenyl vinyl derivatives, acrylic acid and its esters, the anhydride functions of these copolymers being optionally monoesterified or monoamidified;
• Such polymers are described in particular in US patents 2,047,398, 2,723,248, 2,102.1 13, GB patent 839,805 and in particular those marketed under the names GANTREZ AN or ES, AVANTAGE CP by the company ISP;
• the copolymers comprising (i) one or more maleic, citraconic, itaconic anhydrides and (ii) one or more monomers chosen from allyl or methallyl esters optionally comprising one or more acrylamide, methacrylamide, ⁇ -olefin group, acrylic or methacrylic esters, acrylic or methacrylic or viny
• the polymers comprising the sulfonic groups are polymers comprising vinylsulfonic, styrene sulfonic, naphthalene sulfonic or acrylamido alkylsulfonic units. These polymers can in particular be chosen from:
• the anionic fixing polymers are preferably chosen from acrylic acid copolymers such as the acrylic acid / ethyl acrylate / N-tert-butyl acrylamide terpolymers sold in particular under the name ULTRAHOLD STRONG by the company BASF, copolymers derived from crotonic acid such as the vinyl acetate / vinyl tert-butyl benzoate / crotonic acid terpolymers and the crotonic acid / vinyl acetate / vinyl neododecanoate terpolymers sold in particular under the name Resin 28-29-30 by the company NATIONAL STARCH, polymers derived from maleic, fumaric or itaconic acids or anhydrides with vinyl esters, vinyl ethers, vinyl halides, phenylvinyl derivatives, acrylic acid and its esters such as methyl vinyl ether / maleic anhydride copolymers mono esterifieds sold for example under the name GANT
• the most particularly preferred anionic fixing polymers are chosen from the methyl ester / maleic anhydride mono esterified copolymers sold under the name GANTREZ ES 425 by the company ISP, the acrylic acid / ethyl acrylate / N-tertiobutylacrylamide terpolymers sold under the name ULTRAHOLD STRONG by the company BASF, the copolymers of methacrylic acid and methyl methacrylate marketed under the name EUDRAGIT L by the company ROHM PHARMA, the vinyl acetate / tert-butyl vinyl benzoate / crotonic acid terpolymers and the crotonic acid / acetate terpolymers of vinyl / vinyl neododecanoate marketed under the name Resin 28-29-30 by the company NATIONAL STARCH, methacrylic acid copolymers and ethyl acrylate marketed under the name LUVIMER MAEX OR MAE by the
• amphoteric fixing polymers which can be used in accordance with the invention can be chosen from polymers comprising units B and C distributed statistically in the polymer chain where B denotes a unit deriving from a monomer comprising at least one basic nitrogen atom and C denotes a unit deriving from an acid monomer comprising one or more carboxylic or sulphonic groups or else B and C may denote groups deriving from zwitterionic monomers of carboxybetaines or sulphobetaines; B and C can also denote a cationic polymer chain comprising primary, secondary, tertiary or quaternary amine groups, in which at least one of the amine groups carries a carboxylic or sulphonic group linked via a hydrocarbon radical or else B and C are part of a chain of a polymer containing an ethylene a, b-dicarboxylic unit, one of the carboxyl groups of which has been reacted with a polyamine comprising one or more primary or secondary
• amphoteric fixing polymers corresponding to the definition given above which are more particularly preferred are chosen from the following polymers:
• a monomer derived from a vinyl compound carrying a carboxylic group such as more particularly acrylic acid, methacrylic acid, maleic acid, alpha-chloroacrylic acid, and d 'a basic monomer derived from a substituted vinyl compound containing at least one basic atom
• dialkylaminoalkylmethacrylate and acrylate the dialkylaminoalkylmethacrylamide and acrylamide.
• polymers comprising units derived from: a) at least one monomer chosen from acrylamides or methacrylamides substituted on nitrogen by an alkyl radical, b) at least one acidic comonomer containing one or more reactive carboxyl groups, and c) at least one basic comonomer such as esters with primary, secondary, tertiary and quaternary amino substituents of acrylic and methacrylic acids and the product of quaternization of dimethylaminoethyl methacrylate with dimethyl or diethyl sulphate.
• N-substituted acrylamides or methacrylamides which are more particularly preferred according to the invention are groups whose alkyl radicals contain from 2 to 12 carbon atoms and more particularly N-ethylacrylamide, N-tertiobutyl acrylamide, N-tertiooctyl acrylamide, N-octylacrylamide, N-decylacrylamide, N-dodecylacrylamide as well as the corresponding methacrylamides.
• the acid comonomers are chosen more particularly from acrylic, methacrylic, crotonic, itaconic, maleic, fumaric acids as well as alkyl monoesters having 1 to 4 carbon atoms of maleic or fumaric acids or anhydrides.
• the preferred basic comonomers are methacrylates of aminoethyl, butyl aminoethyl, N, N'-dimethylaminoethyl, N-tertio-butylaminoethyl.
• Copolymers are particularly used whose name CTFA (4th Ed., 1991) is Octylacrylamide / acrylates / butylaminoethylmethacrylate copolymer such as the products sold under the name AMPHOMER or LOVOCRYL 47 by the company NATIONAL STARCH.
• Ri o represents a divalent radical derived from a saturated dicarboxylic acid, from an aliphatic mono or dicarboxylic acid with ethylene double bond, from an ester of a lower alkanol having 1 to 6 carbon atoms of these acids or of a radical deriving from the addition of any one of said acids with a primary bis or secondary bis amino
• Z denotes a radical of a polyalkylene - bis-primary, mono or bis-secondary polyamine and preferably represents: a) in the proportions of 60 to 100 mol%, the radical
• the saturated carboxylic acids are preferably chosen from acids having 6 to 10 carbon atoms such as adipic, trimethyl-2,2,4-adipic acid and trimethyl-2,4,4-adipic, terephthalic acid, ethylenic double bond such as for example acrylic, methacrylic, itaconic acids.
• the alkanes suitones used in the alkylation are preferably propane or butane sultone, the salts of the alkylating agents are preferably the sodium or potassium salts.
• Ru denotes a polymerizable unsaturated group such as an acrylate, methacrylate, acrylamide or methacrylamide group
• y and z represents an integer from 1 to 3
• R-J2 and R 13 represent an atom hydrogen, methyl, ethyl or propyl
• R 4 and R15 represent a hydrogen atom or an alkyl radical in such a way that the sum of the carbon atoms in R14 and R15 does not exceed 10.
• the polymers comprising such units may also contain units derived from non-zwitterionic monomers such as dimethyl or diethylaminoethyl acrylate or methacrylate or alkyl acrylates or methacrylates, acrylamides or methacrylamides or vinyl acetate.
• the copolymer of methyl methacrylate / dimethyl carboxymethylammonio ethyl methacrylate such as the product sold under the name DIAFORMER Z301 by the company SANDOZ.
• R 16 represents a radical of formula:
• R20 represents a hydrogen atom, a CH3O radical, CH3CH2O, phenyl
• R2 denotes hydrogen or a lower alkyl radical such as methyl, ethyl
• R22 denotes hydrogen or a lower alkyl radical such as methyl, ethyl
• R23 denotes a lower alkyl radical such as methyl, ethyl or a radical corresponding to the formula: -R24-N (R22) 2>
• R 24 representing a group -CH2-CH2-, -CH2-CH2-CH2-, -CH2- CH (CH3) -, R22 having the meanings mentioned above, as well as the higher homologs of these radicals and containing up to 6 carbon atoms.
• Amphoteric polymers of the -D-X-D-X type chosen from:
• E or E ' denote a bivalent radical which is a straight or branched chain alkylene radical containing up to 7 carbon atoms in the main chain unsubstituted or substituted by hydroxyl groups and which may also contain oxygen, nitrogen, sulfur atoms, 1 to 3 aromatic and / or heterocyclic rings; the oxygen, nitrogen and sulfur atoms being present in the form of ether, thioether, sulfoxide, sulfone, sulfonium, alkylamine, alkenylamine groups, hydroxyl groups, benzylamine, amine oxide, quaternary ammonium, amide, imide, alcohol, ester and / or urethane.
• VIT The polymers of formula: -D-X-D-X- (VIT) where D denotes a radical
• E denotes the symbol E or E 'and at least once E';
• E having the meaning indicated above and E 'is a bivalent radical which is a straight or branched chain alkylene radical having up to 7 carbon atoms in the main chain, substituted or not by one or more hydroxyl radicals and comprising a or more nitrogen atoms, the nitrogen atom being substituted by an alkyl chain optionally interrupted by an oxygen atom and necessarily having one or more carboxyl functions or one or more hydroxyl functions and betainized by reaction with chloracetic acid or sodium chloracetate.
• These copolymers can also contain other vinyl comonomers such as vinylcaprolactam.
• amphoteric fixing polymers which are particularly preferred according to the invention are those of the family (3) such as the copolymers whose name CTFA is Octylacrylamide / acrylates / butylaminoethylmethacrylate copolymer such as the products sold under the names AMPHOMER, AMHOMER LV 71 or LOVOCRYL 47 by the company NATIONAL STARCH and those of the family (4) such as the methyl methacrylate / dimethyl carboxymethylammonio ethyl methacrylate copolymer, for example sold under the name DIAFORMER Z301 by the company SANDOZ.
• the anionic or amphoteric fixing polymers can be partially or totally neutralized if necessary.
• Neutralizing agents are for example sodium hydroxide, potassium hydroxide, 2-amino-2-methyl-propanol-1, monoethanolamine, triethanolamine or triisopropanolamine, mineral or organic acids such as hydrochloric acid or citric acid .
• the appropriate medium contains at least 50% by volume of alcohol, preferably at least 70% by volume of alcohol.
• alcohol is meant according to the invention an aliphatic alcohol C r C 4 , preferably ethanol.
• the propellant consists of compressed or liquefied gases usually used for the preparation of aerosol compositions. Use will preferably be made of compressed air, carbon dioxide or nitrogen, or alternatively a gas which may or may not be soluble in the composition such as dimethyl ether, halogenated hydrocarbons (in particular fluorinated) or not and their mixtures.
• C MS and phase The particular characteristics defined above (C MS and phase) can be obtained by selecting the appropriate distribution means and / or by acting on the formulation.
• valves suitable for the particular compositions above are in particular valves of the AQUASOL type from the company PRECISION, described in particular in patent application FR 2 382 637 (ABPLANALP) comprising separate individual conduits which are intended for the liquid products and for the fluid.
• gas propellant communicating with a Venturi ejector type shock mixing chamber, in which freely introduced products and propellant collide and mix so as to give a fine dispersion which is ejected by an orifice, and comprising flow control elements which can be operated simultaneously by a single member controlling each current or their mixtures
• the above valves suitable for the present invention have the following characteristics.
• - nozzle comprising at least one orifice between 0.40 and 0.60 mm, preferably two orifices, more preferably two orifices of 0.5 mm, - internal restriction of the valve body between 0.3 and 1 mm, of preferably between 0.3 and 0.6 mm,
• a valve will be used with a nozzle with two orifices of 0.5 mm in diameter, a valve body of 0.36 or 0.58 mm, with a nozzle orifice of 0.36 and 0.60 mm. respectively, and a disc-shaped element with two channels of dimension 0.25 x 0.25 mm (hereinafter referred to as valves V36 and V58)
• the diffusers suitable for the above particular compositions are in particular push buttons with swirl nozzle, such as that distributed by the company Precision under the reference 216943-40.
• the present invention also relates to a process for treating keratin fibers, in which a composition is applied to said fibers comprising a fixing material by means of an appropriate device for obtaining a dry matter flow rate of less than or equal to 12 mg / s and a wetting power at 20 cm less than or equal to 100 mg / s
• composition A The following juice is prepared: Composition A
• the device 1 according to the invention is prepared from the above composition with a valve V36 and a PRECISION push button ref. 216943-40.
• the comparative device 2 is equipped with a valve
• Tests on five models show each time the hair treated with the device 1 according to the invention have a look and a natural feel and have a reinforcing effect of keeping large hairstyle.
• Example 2 Device according to the invention
• composition B The following juice is prepared: Composition B
• composition C The following juice is prepared: Composition C
• Ethanol qs 100.00 g 65 g of this juice are introduced into an aerosol bottle which is fitted with a valve, a v36 valve, then 35 g of dimethyl ether are added as a propellant, and a PRECISION push button ref 216943-40
• the characteristics of this comparative device 4 are the following
• the hair treated by the comparative device 4 shows that there are places where welds are formed. The holding effect does not appear natural due to these welds.
• the device according to the invention does not cause the formation of welds, although it applies longer, while the device 4 always leads in places to the formation of welds, with a bulking effect of the hair

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• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Cosmetics (AREA)

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• 1997
  • 1997-01-31 FR FR9701104A patent/FR2758983B1/fr not_active Expired - Fee Related
  • 1997-12-15 DE DE69707158T patent/DE69707158T2/de not_active Expired - Fee Related
  • 1997-12-15 WO PCT/FR1997/002301 patent/WO1998033725A1/fr active IP Right Grant
  • 1997-12-15 AU AU55626/98A patent/AU5562698A/en not_active Abandoned
  • 1997-12-15 JP JP10532576A patent/JP2000509355A/ja active Pending
  • 1997-12-15 EP EP97952060A patent/EP0956247B1/de not_active Expired - Lifetime
  • 1997-12-15 US US09/355,082 patent/US20020141948A1/en not_active Abandoned

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