EP4021390A1 - Composition suitable for cleansing - Google Patents

Composition suitable for cleansing

Info

Publication number
EP4021390A1
EP4021390A1 EP20772136.6A EP20772136A EP4021390A1 EP 4021390 A1 EP4021390 A1 EP 4021390A1 EP 20772136 A EP20772136 A EP 20772136A EP 4021390 A1 EP4021390 A1 EP 4021390A1
Authority
EP
European Patent Office
Prior art keywords
composition
acid
triglyceride
oil
polyglyceryl
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
Application number
EP20772136.6A
Other languages
German (de)
French (fr)
Inventor
Sho Watanabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Watanabe Sho
LOreal SA
Original Assignee
LOreal SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LOreal SA filed Critical LOreal SA
Publication of EP4021390A1 publication Critical patent/EP4021390A1/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/10Washing or bathing preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/92Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37Esters of carboxylic acids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37Esters of carboxylic acids
    • A61K8/375Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/39Derivatives containing from 2 to 10 oxyalkylene groups
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/14Preparations for removing make-up

Definitions

  • the present invention relates to a composition including a specific combination of ingredients, in particular a cosmetic composition for the skin, as well as a cosmetic process using the same.
  • Cleansing the skin is very important for caring for the face. It must be as effective as possible because greasy residues, such as excess sebum, the remnants of cosmetic products used daily, and make-up products, in particular waterproof products, accumulate in the skin folds, and can block the pores of the skin and result in the appearance of spots.
  • Rinsable anhydrous oils and gels have a cleansing action mainly by virtue of oils present in these formulations. These oils make it possible to dissolve fatty residues and to disperse make-up pigments. These products are effective and well tolerated.
  • An ideal oil-based make-up remover such as a cleansing oil product should have good make-up removability, good rinsability with water, good stability, and good texture such as a “cushiony” feel during application.
  • the “cushiony” feel here means that the fingers feel the presence of the make-up remover, in particular oil, which could be felt as if a cushion were present between the fingers.
  • JP-B-4550676 discloses a cleansing oil product including from 3% to 30% by weight of hydrogenated polybutene.
  • the hydrogenated polybutene is a very thick or viscous oil, and this may provide a cushiony feel, but the cleansing oil as a whole could be too thick or viscous and sticky, and may not be easily rinsed off even if the cleansing oil includes surfactants. In addition, the sticky feel may remain even after rinsing off.
  • JP-B-5057611 also discloses a cleansing oil product including oil and di-branched fatty acid-polyethylene glycol esters having good rinsability. However, it is difficult for this cleansing oil product to provide a cushiony feel.
  • JP-B-6215435 also discloses a cleansing oil product including a specific type of polyglyceryl fatty acid ester with an average polymerization degree of from 15 to 30. This may realize good rinsability. However, it is difficult for this cleansing oil product to provide a cushiony feel.
  • An objective of the present invention is to provide a composition useful as a cleansing oil product, which can have good make-up removability, good rinsability with water, good stability before being used, and good texture such as a “cushiony” feel during application.
  • composition comprising:
  • the aliphatic monocarboxylic acid may comprise from 4 to 10 carbon atoms, preferably from 6 to 10 carbon atoms and more preferably from 8 to 10 carbon atoms.
  • the aliphatic dicarboxylic acid may comprise from 2 to 10 carbon atoms, preferably from 3 to 8 carbon atoms, and more preferably from 4 to 6 carbon atoms.
  • the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid may be caprylic/capric/succinic triglyceride.
  • the amount of the (a) triglyceride(s) of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may range from 1% to 25% by weight, preferably from 3% to 20% by weight, and more preferably from 5% to 15% by weight, relative to the total weight of the composition.
  • composition according to the present invention may comprise at least two (b) polyglyceryl fatty acid esters.
  • the (b) polyglyceryl fatty acid ester may comprise from 2 to 6 polyglyceryl units, preferably from 4 to 6 polyglyceryl units, and more preferably 5 or 6 polyglyceryl units.
  • the (b) polyglyceryl fatty acid ester may be selected from the group consisting of polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 caprylate, polyglyceryl-2 oleate, and mixtures thereof.
  • the amount of the (b) polyglyceryl fatty acid ester(s) in the composition according to the present invention may range from 1% to 20% by weight, preferably from 3% to 15% by weight, and more preferably from 5% to 10% by weight, relative to the total weight of the composition.
  • the (c) oil may be selected from plant oils, synthetic triglycerides of aliphatic monocarboxylic acids, and synthetic ester oils other than the synthetic triglycerides.
  • the amount of the (c) oil(s) in the composition according to the present invention may range from 50% to 95% by weight, preferably from 60% to 90% by weight, and more preferably from 70% to 85% by weight, relative to the total weight of the composition.
  • composition according to the present invention may be a cosmetic composition, preferably a cleansing composition, and more preferably a skin cleansing composition.
  • the present invention also relates to a cosmetic process for a keratin substance, preferably the skin, comprising applying to the keratin substance the composition according to the present invention.
  • the present invention also relates to a use of (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in a composition comprising (b) at least one polyglyceryl fatty acid ester, and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in order to render the composition capable of providing a cushiony texture during the application of the composition onto the skin.
  • the present invention also relates to a use of (b) at least one polyglyceryl fatty acid ester in a composition comprising (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in order to render the composition capable of providing a cushiony texture during the application of the composition onto the skin.
  • compositions, useful as a cleansing product which can have good make-up removability, good rinsability with water, good stability before being used, and good texture such as a “cushiony” feel during application.
  • composition according to the present invention comprises:
  • composition according to the present invention can have good make-up removability, good rinsability with water, good stability (in particular in a wide temperature range) before being used, and good texture such as a “cushiony” feel during application.
  • the “cushiony” feel here means that the fingers feel the presence of the composition which could be felt as if a cushion were present between the fingers.
  • the “cushiony” feel can provide the following benefits: An oil-based cleansing product with a cushiony feel or texture can decrease friction between the fingers and face during application, so skin damage can be less. Additionally, consumers feel comfort from the massaging gesture with the oil-based cleansing product with a cushiony feel or texture.
  • a cushiony feel may be achieved with a thick or more viscous oil, but such a thick or more viscous oil is more difficult to rinse off with water because the thick or more viscous oil tends to stay on the skin.
  • a thin or less viscous oil is easier to remove from the skin with water, but such a thin or less viscous oil cannot provide consumers with comfort during application because it tends to increase friction between the fingers and the skin due to the lack of a cushiony effect.
  • a triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in particular caprylic/capric/succinic triglyceride, as an oil ingredient can provide appropriate thickness or viscosity for a good cushiony feel.
  • composition according to the present invention comprises at least one (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid. If two or more such (a) triglycerides are used, they may be the same or different.
  • the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be in the form of a liquid at room temperature (25°C) under atmospheric pressure (760 mmHg).
  • the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid have a melting point of less than 25°C, more preferably 20°C or less, and even more preferably 15°C or less.
  • the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid not be volatile.
  • the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be derived from natural sources such as plants.
  • the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid can be an acylglycerol in which a glycerol is esterified with three fatty acids wherein at least one of the fatty acids is an aliphatic monocarboxylic acid and at least one of the fatty acids is an aliphatic dicarboxylic acid.
  • One of the fatty acids may be an aliphatic monocarboxylic acid, while two of the fatty acids may be aliphatic dicarboxylic acids.
  • one of the fatty acids may be an aliphatic dicarboxylic acid, while two of the fatty acids may be aliphatic monocarboxylic acids.
  • the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid can be a mixed ester of a glycerol, at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid.
  • the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid can be a mixed ester of a glycerol, two aliphatic monocarboxylic acid and one aliphatic dicarboxylic acid.
  • the aliphatic monocarboxylic acid may be saturated or unsaturated. It is preferable that the aliphatic monocarboxylic acid be saturated.
  • the aliphatic monocarboxylic acid may comprise from 4 to 30 carbon atoms, preferably from 6 to 26 carbon atoms, and more preferably from 8 to 22 carbon atoms.
  • the aliphatic monocarboxylic acid may have a linear or branched carbon chain. It is preferable that the aliphatic monocarboxylic acid have a linear carbon chain.
  • the aliphatic monocarboxylic acid may be selected from the group consisting of hexanoic acid, heptanoic acid, octanoic acid (caprylic acid), 2-ethylhexanoic acid, nonanoic acid, decanoic acid (capric acid), undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pentadecanoic acid, hexadecanoic acid, hexyldecanoic acid, heptadecanoic acid, octadecanoic acid, isostearic acid, nonadecanoic acid, eicasanoic acid, isoarachidic acid, octyidodecanoic acid, heneicosanoic acid, and docosanoic acid.
  • the aliphatic monocarboxylic acid comprise from 4 to 10 carbon atoms, preferably from 6 to 10 carbon atoms and more preferably from 8 to 10 carbon atoms.
  • the aliphatic monocarboxylic acid be selected from caprylic acid and capric acid.
  • the aliphatic dicarboxylic acid may be saturated or unsaturated. It is preferable that the aliphatic dicarboxylic acid be saturated.
  • the aliphatic dicarboxylic acid may comprise from 2 to 20 carbon atoms, preferably from 3 to 16 carbon atoms, and more preferably from 4 to 12 carbon atoms.
  • the aliphatic dicarboxylic acid may have a linear or branched carbon chain. It is preferable that the aliphatic dicarboxylic acid have a linear carbon chain.
  • the aliphatic dicarboxylic acid may be selected from the group consisting of oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, and sebacic acid.
  • the aliphatic dicarboxylic acid comprise from 2 to 10 carbon atoms, preferably from 3 to 8 carbon atoms and more preferably from 4 to 6 carbon atoms.
  • the aliphatic dicarboxylic acid be selected from succinic acid and adipic acid.
  • the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be caprylic/capric/succinic triglyceride.
  • the caprylic/capric/succinic triglyceride for example, Miglyol 829 marketed by IOI Oleo GmbH may be used.
  • the amount of the (a) triglyceride(s) of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may be 1% by weight or more, preferably 3% by weight or more, and more preferably 5% by weight or more, relative to the total weight of the composition.
  • the amount of the (a) triglyceride(s) of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may be 25% by weight or less, preferably 20% by weight or less, and more preferably 15% by weight or less, relative to the total weight of the composition, with the proviso that the amount of the (a) triglyceride(s) is not zero.
  • the amount of the (a) triglyceride(s) of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may range from 1% to 25% by weight, preferably from 3% to 20% by weight, and more preferably from 5% to 15% by weight, relative to the total weight of the composition.
  • composition according to the present invention comprises at least one (b) polyglyceryl fatty acid ester. If two or more such (b) polyglyceryl fatty acid esters are used, they may be the same or different.
  • composition according to the present invention comprises at least two (b) polyglyceryl fatty acid esters.
  • the (b) polyglyceryl fatty acid ester have a polyglycerol moiety derived from 2 to 6 glycerols, more preferably from 4 to 6 glycerols, and even more preferably 5 or 6 glycerols.
  • the (b) polyglyceryl fatty acid ester comprise from 2 to 6 polyglyceryl units, more preferably 4 to 6 polyglyceryl units, and even more preferably 5 or 6 polyglyceryl units.
  • the stability of the composition according to the present invention may be enhanced.
  • the (b) polyglyceryl fatty acid ester may have an HLB (Hydrophilic Lipophilic Balance) value of from 4.0 to 16.0, preferably from 4.5 to 15.5, and more preferably from 5.0 to 15.0. If two or more polyglyceryl fatty acid esters are used, the HLB value is determined by the weight average of the HLB values of all the polyglyceryl fatty acid esters.
  • HLB Hydrophilic Lipophilic Balance
  • the (b) polyglyceryl fatty acid ester may be chosen from the mono, di and tri esters of a linear or branched, saturated or unsaturated fatty acid, preferably saturated fatty acid, including from 2 to 30 carbon atoms, preferably from 4 to 30 carbon atoms, and more preferably from 6 to 30 carbon atoms, such as lauric acid, oleic acid, stearic acid, isostearic acid, capric acid, caprylic acid, and myristic acid.
  • the (b) polyglyceryl fatty acid ester may be selected from the group consisting of PG2 caprylate, PG2 sesquicaprylate, PG2 dicaprylate, PG2 tricaprylate, PG2 caprate, PG2 sesquicaprate, PG2 dicaprate, PG2 tricaprate, PG2 laurate, PG2 sesquilaurate, PG2 dilaurate, PG2 trilaurate, PG2 myristate, PG2 sesquimyristate, PG2 dimyristate, PG2 trimyristate, PG2 stearate, PG2 sesquistearate, PG2 distearate, PG2 tristearate, PG2 isostearate, PG2 sesquiisostearate, PG2 diisostearate, PG2 triisostearate, PG2 oleate, PG2 sesquioleate, PG2 dioleate, PG2 trioleate, PG
  • the (b) polyglyceryl fatty acid ester be chosen from: polyglyceryl mono- or di-caprate comprising from 2 to 6 glycerol units; polyglyceryl mono- or di-oleate comprising from 2 to 6 glycerol units; and polyglyceryl mono- or di-caprylate comprising from 2 to 6 glycerol units.
  • the (b) polyglyceryl fatty acid ester be selected from the group consisting of polyglyceryl-6 dicaprate (PG6 dicaprate), polyglyceryl-6 dioleate (PG6 dioleate), polyglyceryl-6 caprylate (PG6 caprylate), polyglyceryl-2 oleate (PG2 oleate), and mixtures thereof.
  • composition according to the present invention comprise a combination of: polyglyceryl mono- or di-caprate comprising from 2 to 6 glycerol units; and polyglyceryl mono- or di-oleate comprising from 2 to 6 glycerol units; and/or polyglyceryl mono- or di-caprylate comprising from 2 to 6 glycerol units.
  • composition according to the present invention comprise a combination of:
  • PG6 dioleate and/or PG6 caprylate.
  • PG6 dicaprate for example, SunSoft Q-102H-C marketed by Taiyo Kagaku Co., Ltd. may be used.
  • PG6 dioleate SunSoft Q-172H-C marketed by Taiyo Kagaku Co. Ltd. may be used.
  • PG6 caprylate SunSoft Q-8H-C marketed by Taiyo Kagaku Co. Ltd. may be used.
  • the amount of the (b) polyglyceryl fatty acid ester(s) in the composition according to the present invention may be 1% by weight or more, preferably 3% by weight or more, and more preferably 5% by weight or more, relative to the total weight of the composition.
  • the amount of the (b) polyglyceryl fatty acid ester(s) in the composition according to the present invention may be 20% by weight or less, preferably 15% by weight or less, and more preferably 10% by weight or less, relative to the total weight of the composition, with the proviso that the amount of the (b) polyglyceryl fatty acid(s) is not zero.
  • the amount of the (b) polyglyceryl fatty acid ester(s) in the composition according to the present invention may range from 1% to 20% by weight, preferably from 3% to 15% by weight, and more preferably from 5% to 10% by weight, relative to the total weight of the composition.
  • composition according to the present invention comprises at least one (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid. If two or more such (c) oils are used, they may be the same or different.
  • the (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid may be regarded as an additional oil.
  • oil means a fatty compound or substance which is in the form of a liquid or a paste (non-solid) at room temperature (25°C) under atmospheric pressure (760 mmHg).
  • the (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid has a melting point of less than 25°C, more preferably 20°C or less, and even more preferably 15°C or less.
  • oils those generally used in cosmetics can be used alone or in combination thereof. These oils may be volatile or non-volatile.
  • the (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid may be a non-polar oil such as a hydrocarbon oil, a silicone oil, or the like; a polar oil such as a plant or animal oil and an ester oil or an ether oil; or a mixture thereof.
  • the (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid may be selected from the group consisting of oils of plant or animal origin, synthetic oils, silicone oils, hydrocarbon oils, and fatty alcohols.
  • plant oils examples include, for example, linseed oil, camellia oil, macadamia nut oil, com oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.
  • alkane oils such as isododecane and isohexadecane
  • ester oils such as isododecane and isohexadecane
  • ether oils such as triglycerides
  • the ester oils are preferably liquid esters of saturated or unsaturated, linear or branched C1-C26 aliphatic monoacids or polyacids and of saturated or unsaturated, linear or branched C 1 -C 26 aliphatic monoalcohols or polyalcohols, the total number of carbon atoms of the esters being greater than or equal to 10.
  • At least one from among the alcohol and the acid from which the esters of the present invention are derived is branched.
  • ethyl palmitate ethyl hexyl palmitate
  • isopropyl palmitate dicaprylyl carbonate
  • alkyl myristates such as isopropyl myristate or ethyl myristate
  • isocetyl stearate 2-ethylhexyl isononanoate
  • isononyl isononanoate isodecyl neopentanoate
  • isostearyl neopentanoate isostearyl neopentanoate.
  • Esters of C 4 -C 22 dicarboxylic or tricarboxylic acids and of C 1 -C 22 alcohols, and esters of monocarboxylic, dicarboxylic, or tricarboxylic acids and of non-sugar C 4 -C 26 dihydroxy, trihydroxy, tetrahydroxy, or pentahydroxy alcohols may also be used.
  • sugar esters and diesters of C 6 -C 30 and preferably C 12 -C 22 fatty acids.
  • sucrose means oxygen-bearing hydrocarbon-based compounds containing several alcohol functions, with or without aldehyde or ketone functions, and which comprise at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides, or polysaccharides.
  • suitable sugars include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, and lactose, and derivatives thereof, especially alkyl derivatives, such as methyl derivatives, for instance methylglucose.
  • the sugar esters of fatty acids may be chosen especially from the group comprising the esters or mixtures of esters of sugars described previously and of linear or branched, saturated or unsaturated C 6 -C 30 and preferably C 12 -C 22 fatty acids. If they are unsaturated, these compounds may have one to three conjugated or non-conjugated carbon-carbon double bonds.
  • esters according to this variant may also be selected from monoesters, diesters, triesters, tetraesters, and polyesters, and mixtures thereof.
  • esters may be, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates, and arachidonates, or mixtures thereof such as, especially, oleopalmitate, oleostearate, and palmitostearate mixed esters, as well as pentaerythrityl tetraethyl hexanoate.
  • monoesters and diesters and especially sucrose, glucose, or methylglucose monooleates or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates, and oleostearates.
  • Glucate® DO is a methylglucose dioleate.
  • ester oils mention may be made of, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylate/caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hex
  • artificial triglycerides mention may be made of, for example, capryl caprylyl glycerides, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, glyceryl tri(caprate/caprylate), and glyceryl tri(caprate/ caprylate/linolenate) .
  • silicone oils mention may be made of, for example, linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and the like; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like; and mixtures thereof.
  • linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and the like
  • cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodeca
  • the silicone oil is chosen from liquid polydialkylsiloxanes, especially liquid polydimethylsiloxanes (PDMS) and liquid polyorganosiloxanes comprising at least one aryl group.
  • PDMS liquid polydimethylsiloxanes
  • silicone oils may also be organomodified.
  • organomodified silicones that can be used in accordance with the present invention are silicone oils as defined above and comprise in their structure one or more organo functional groups attached via a hydrocarbon-based group.
  • Organopolysiloxanes are defined in greater detail in Walter Noll’s Chemistry and Technology of Silicones (1968), Academic Press. They may be volatile or non-volatile.
  • the silicones are more particularly chosen from those having a boiling point of between 60°C and 260°C, and even more particularly from:
  • cyclic polydialkylsiloxanes comprising from 3 to 7 and preferably 4 to 5 silicon atoms.
  • cyclic polydialkylsiloxanes comprising from 3 to 7 and preferably 4 to 5 silicon atoms.
  • These are, for example, octamethylcyclotetrasiloxane sold in particular under the name Volatile Silicone® 7207 by Union Carbide or Silbione® 70045 V2 by Rhodia, decamethylcyclopentasiloxane sold under the name Volatile Silicone® 7158 by Union Carbide, Silbione® 70045 V5 by Rhodia, and dodecamethylcyclopentasiloxane sold under the name Silsoft 1217 by Momentive Performance Materials, and mixtures thereof. Mention may also be made of cyclocopolymers of the type such as dimethylsiloxane/methylalkylsiloxane, such as Silicone Volatile® FZ 3109 sold by the company Union Carbide, of formula:
  • organosilicon compounds such as the mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50/50) and the mixture of oc
  • decamethyltetrasiloxane sold in particular under the name SH 200 by the company Toray Silicone. Silicones belonging to this category are also described in the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicones is measured at 25°C according to ASTM standard 445 Appendix C.
  • Non-volatile polydialkylsiloxanes may also be used. These non-volatile silicones are more particularly chosen from polydialkylsiloxanes, among which mention may be made mainly of polydimethylsiloxanes containing trimethylsilyl end groups.
  • polydialkylsiloxanes mention may be made, in a non-limiting manner, of the following commercial products: the Silbione ® oils of the 47 and 70047 series or the Mirasil ® oils sold by Rhodia, for instance the oil 70 047 V 500000; the oils of the Mirasil ® series sold by the company Rhodia; the oils of the 200 series from the company Dow Coming, such as DC200 with a viscosity of 60 000 mm 2 /s; and the Viscasil ® oils from General Electric and certain oils of the SF series (SF 96, SF 18) from General Electric.
  • the Silbione ® oils of the 47 and 70047 series or the Mirasil ® oils sold by Rhodia for instance the oil 70 047 V 500000
  • the oils of the Mirasil ® series sold by the company Rhodia the oils of the 200 series from the company Dow Coming, such as DC200 with a viscosity of 60 000 mm 2 /s
  • CTFA dimethiconol
  • silicones containing aryl groups mention may be made of polydiarylsiloxanes, especially polydiphenylsiloxanes and polyalkylarylsiloxanes such as phenyl silicone oil.
  • the phenyl silicone oil may be chosen from the phenyl silicones of the following formula: in which
  • R 1 to R 10 are saturated or unsaturated, linear, cyclic or branched C 1 -C 30 hydrocarbon-based radicals, preferably C 1 -C 12 hydrocarbon-based radicals, and more preferably C 1 -C 6 hydrocarbon-based radicals, in particular methyl, ethyl, propyl, or butyl radicals, and m, n, p, and q are, independently of each other, integers of 0 to 900 inclusive, preferably 0 to 500 inclusive, and more preferably 0 to 100 inclusive, with the proviso that the sum n+m+q is other than 0.
  • oils of the 70 641 series from Rhodia examples include the products sold under the following names: the Silbione® oils of the 70 641 series from Rhodia; the oils of the Rhodorsil® 70 633 and 763 series from Rhodia; the oil Dow Coming 556 Cosmetic Grade Fluid from Dow Coming; the silicones of the PK series from Bayer, such as the product PK20; and certain oils of the SF series from General Electric, such as SF 1023, SF 1154, SF 1250, and SF 1265.
  • the organomodified liquid silicones may especially contain polyethyleneoxy and/or polypropyleneoxy groups. Mention may thus be made of the silicone KF-6017 proposed by Shin-Etsu, and the oils Silwet® L722 and L77 from the company Union Carbide.
  • Hydrocarbon oils may be chosen from: linear or branched, optionally cyclic, C 6 -C 16 lower alkanes. Examples that may be mentioned include hexane, undecane, dodecane, tridecane, and isoparaffins, for instance isohexadecane, isododecane, and isodecane; and linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffins, liquid petroleum jelly, polydecenes and hydrogenated polyisobutenes such as Parleam®, and squalane.
  • hydrocarbon oils As preferable examples of hydrocarbon oils, mention may be made of, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, vaseline or petrolatum, naphthalenes, and the like; hydrogenated polyisobutene, isoeicosan, and decene/butene copolymer; and mixtures thereof.
  • linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, vaseline or petrolatum, naphthalenes, and the like; hydrogenated polyisobutene, isoeicosan, and decene/butene copolymer; and mixtures thereof.
  • fatty alcohol in the fatty alcohol means the inclusion of a relatively large number of carbon atoms. Thus, alcohols which have 4 or more, preferably 6 or more, and more preferably 12 or more carbon atoms are encompassed within the scope of fatty alcohols.
  • the fatty alcohol may be saturated or unsaturated.
  • the fatty alcohol may be linear or branched.
  • the fatty alcohol may have the structure R-OH wherein R is chosen from saturated and unsaturated, linear and branched radicals containing from 4 to 40 carbon atoms, preferably from 6 to 30 carbon atoms, and more preferably from 12 to 20 carbon atoms.
  • R may be chosen from C 12 -C 20 alkyl and C 12 -C 20 alkenyl groups. R may or may not be substituted with at least one hydroxyl group.
  • fatty alcohol examples include lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidonyl alcohol, erucyl alcohol, and mixtures thereof.
  • the fatty alcohol be a saturated fatty alcohol.
  • the fatty alcohol may be selected from straight or branched, saturated or unsaturated C 6 -C 30 alcohols, preferably straight or branched, saturated C 6 -C 30 alcohols, and more preferably straight or branched, saturated C 12 -C 20 alcohols.
  • saturated fatty alcohol here means an alcohol having a long aliphatic saturated carbon chain. It is preferable that the saturated fatty alcohol be selected from any linear or branched, saturated C 6 -C 30 fatty alcohols. Among the linear or branched, saturated C 6 -C 30 fatty alcohols, linear or branched, saturated C 12 -C 20 fatty alcohols are preferably used. Any linear or branched, saturated C 16 -C 20 fatty alcohols are more preferably used. Branched C 16 -C 20 fatty alcohols are even more preferably used.
  • saturated fatty alcohols mention may be made of lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof.
  • cetyl alcohol, stearyl alcohol, octyldodecanol, hexyldecanol, or a mixture thereof (e.g., cetearyl alcohol) as well as behenyl alcohol can be used as a saturated fatty alcohol.
  • the fatty alcohol used in the composition according to the present invention is preferably chosen from cetyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof.
  • the (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be chosen from plant oils, synthetic triglycerides of aliphatic monocarboxylic acids, and synthetic ester oils other than the synthetic triglyceride.
  • the synthetic triglycerides of aliphatic monocarboxylic acid mention may be made of the above-mentioned artificial triglycerides such as caprylic/capric triglyceride.
  • the triglyceride of aliphatic monocarboxylic acids can be an acylglycerol in which glycerol is esterified with three aliphatic monocarboxylic acids which are the same or different.
  • the synthetic triglyceride of aliphatic monocarboxylic acids is a mixed ester of glycerol and aliphatic monocarboxylic acids, and does not include any unit derived from aliphatic dicarboxylic acid.
  • the (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be chosen from plant oils.
  • the amount of the (c) oil(s) other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may be 50% by weight or more, preferably 60% by weight or more, and more preferably 70% by weight or more, relative to the total weight of the composition.
  • the amount of the (c) oil(s) other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may be 95% by weight or less, preferably 90% by weight or less, and more preferably 85% by weight or less, relative to the total weight of the composition, with the proviso that the amount of the (c) oil(s) is not zero.
  • the amount of the (c) oil(s) other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may range from 50% to 95% by weight, preferably from 60% to 90% by weight, and more preferably from 70% to 85% by weight, relative to the total weight of the composition.
  • composition according to the present invention may also include at least one optional or additional ingredient.
  • the optional or additional ingredient(s) may be selected from the group consisting of cationic, anionic, nonionic or amphoteric polymers; cationic, anionic, nonionic or amphoteric surfactants, other than the above ingredient (b); thickeners; dyes; sunscreen agents; vitamins or provitamins; fragrances; preservatives, co-preservatives, stabilizers; and mixtures thereof.
  • the amount of the optional or additional ingredient(s) is not limited, but may be from 0.001% to 10% by weight, preferably from 0.01% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition according to the present invention.
  • composition according to the present invention can be prepared by mixing the ingredients (a) to (c), as essential ingredients, as well as optional or additional ingredient(s), as explained above.
  • the method and means to mix the above essential ingredients as well as optional ingredients are not limited. Any conventional method and means can be used to mix the above essential ingredients as well as optional ingredients to prepare the composition according to the present invention.
  • composition according to the present invention can be an oil-based composition.
  • the composition according to the present invention can be in the form of a liquid and the like.
  • composition according to the present invention may preferably be transparent or translucent.
  • the composition according to the present invention may preferably be viscous, and it can exhibit very good stability when, for example, being stored.
  • viscous here is meant the fact that the composition according to the present invention does not run, in other words that it has a certain viscosity.
  • the viscosity of the composition according to the present invention may range, for example, from 5 to 190 poises (0.5 to 19 Pa.s), preferably from 5 to 150 poises (0.5 to 15 Pa.s) and more preferably from 10 to 120 poises (1 to 12 Pa.s), this viscosity being measured using a Rheomat 180 viscometer at a shear rate of 200 s -1 and at 25°C.
  • the composition according to the present invention is substantially anhydrous.
  • substantially anhydrous here means that the composition according to the present invention may contain only a small amount of water, and preferably no water.
  • the amount of water may be 2% by weight or less, preferably 1% by weight or less, and more preferably 0.5% by weight or less relative to the total weight of the composition. It is particularly preferable that the composition according to the present invention contain no water as a distinct ingredient to be added intentionally. On the other hand, a small or trace amount of water may be present in the ingredient itself to be included in the composition according to the present invention.
  • the composition according to the present invention may preferably be used as a cosmetic composition.
  • the cosmetic composition may be a cleansing composition, such as a skin cleansing composition.
  • the skin here encompasses facial skin, neck skin, and the scalp.
  • the composition according to the present invention can be a make-up remover.
  • the composition according to the present invention may also be used for mucosae such as the lips, and the like.
  • composition according to the present invention may be intended for application onto a keratin substance such as the skin or the lips, preferably the skin.
  • the composition according to the present invention can be used for a cosmetic process for the skin or the lips, preferably a cleansing process for the skin or the lips, and more preferably a cleansing process for the skin to remove make-up on the skin.
  • the cosmetic process or cosmetic use for a keratin substance such as the skin or the lips, according to the present invention comprises, at least, the step of applying onto the keratin substance the composition according to the present invention.
  • the cosmetic process or cosmetic use for a keratin substance such as the skin or the lips according to the present invention may also comprise the step of rinsing off the composition according to the present invention from the keratin substance.
  • the rinsing step can use water for rinsing off the composition according to the present invention from the keratin substance.
  • the present invention also relates to: a use of (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in a composition comprising (b) at least one polyglyceryl fatty acid ester, and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in order to render the composition capable of providing a cushiony texture during the application of the composition onto the skin, or a use of (b) at least one polyglyceryl fatty acid ester in a composition comprising (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one
  • Each of the cleansing cosmetic compositions according to Examples 1-3 (Ex. 1 to Ex. 3) and Comparative Examples 1-3 (Comp. Ex. 1 to Comp. Ex. 3) was prepared by mixing the ingredients shown in column “A” in Table 1 at around 70°C to form an A-phase, mixing the ingredients shown in column “B” in Table 1 at around 70°C to form a B-phase, and then mixing the A-phase and B-phase to obtain a mixture, followed by cooling the mixture thus obtained to room temperature.
  • the numerical values for the amounts of the ingredients shown in Table 1 are all based on “% by weight” as active raw materials, relative to the total weight of the composition.
  • Each of 5 panelists made-up their faces by applying a mascara product (MAYBELLINE Volum'Express Elypercurl Waterproof N 01 Black) to the eyelashes with a brush with a total of 40 strokes (each time, the brush was dipped into the mascara bottle).
  • a mascara product MAYBELLINE Volum'Express Elypercurl Waterproof N 01 Black
  • composition 4 mL of each composition was then applied onto the face of the 5 panelists using the fingers, and massaged with a circular gesture on the entire face for 30 seconds and on the eye area for 10 seconds. Finally, the composition was rinsed off from the entire face, in particular the eye area, with lukewarm water.
  • the panelists evaluated the makeup removability with a grade of from 1 (very poor) to 5 (very good), and the average of the evaluations was categorized in accordance with the following criteria. Very Good (5.0 to 4.0): A makeup residue was not observed at all.
  • composition was filled into a transparent glass bottle, and the glass bottle was held under temperature conditions of -5°C, 4°C, 25°C, 40°C, 45°C, and 50°C for 2 months.
  • the aspect of the bottle was then investigated for the degree of change (transparency, color, and odor), and evaluated by the following criteria.
  • Examples 1-3 show that the use of a combination of (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid such as caprylic/capric/succinic triglyceride, (b) polyglyceryl fatty acid ester(s), and (c) additional oil(s) such as plant oil and synthetic ester oil, can provide a composition with good make-up removability, good rinsability with water, good stability over temperature change in a wide range, and good texture, i.e., a “cushiony” feel during application.
  • the composition is suitable for cleansing, and the therefore, it can be appropriate as a cleansing product for cosmetic purposes.
  • Comparative Examples 1 and 2 show that if the above (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid is not used, the cushiony texture during application becomes worse.
  • Comparative Example 3 shows that if the above (b) polyglyceryl fatty acid is not used (instead, another nonionic surfactant, i.e., PEG-20 glyceryl triisostearate, is used), the cushiony texture during application becomes worse.
  • another nonionic surfactant i.e., PEG-20 glyceryl triisostearate

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Abstract

The present invention relates to a composition comprising: (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid; (b) at least one polyglyceryl fatty acid ester; and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid. The composition according to the present invention can provide good make-up removability, good rinsability with water, good stability before being used, and good texture such as a "cushiony" feel during application!

Description

DESCRIPTION TITLE OF INVENTION COMPOSITION SUITABLE FOR CLEANSING TECHNICAL FIELD
The present invention relates to a composition including a specific combination of ingredients, in particular a cosmetic composition for the skin, as well as a cosmetic process using the same.
BACKGROUND ART
Cleansing the skin is very important for caring for the face. It must be as effective as possible because greasy residues, such as excess sebum, the remnants of cosmetic products used daily, and make-up products, in particular waterproof products, accumulate in the skin folds, and can block the pores of the skin and result in the appearance of spots.
Several types of skin cleansing products, for example, rinsable cleansing anhydrous oils and gels, and foaming creams, lotions and gels, are known.
Rinsable anhydrous oils and gels have a cleansing action mainly by virtue of oils present in these formulations. These oils make it possible to dissolve fatty residues and to disperse make-up pigments. These products are effective and well tolerated.
An ideal oil-based make-up remover such as a cleansing oil product should have good make-up removability, good rinsability with water, good stability, and good texture such as a “cushiony” feel during application. The “cushiony” feel here means that the fingers feel the presence of the make-up remover, in particular oil, which could be felt as if a cushion were present between the fingers.
However, it is difficult for conventional oil-based make-up removers to satisfy the above requirements.
For example, JP-B-4550676 discloses a cleansing oil product including from 3% to 30% by weight of hydrogenated polybutene. The hydrogenated polybutene is a very thick or viscous oil, and this may provide a cushiony feel, but the cleansing oil as a whole could be too thick or viscous and sticky, and may not be easily rinsed off even if the cleansing oil includes surfactants. In addition, the sticky feel may remain even after rinsing off.
JP-B-5057611 also discloses a cleansing oil product including oil and di-branched fatty acid-polyethylene glycol esters having good rinsability. However, it is difficult for this cleansing oil product to provide a cushiony feel.
JP-B-6215435 also discloses a cleansing oil product including a specific type of polyglyceryl fatty acid ester with an average polymerization degree of from 15 to 30. This may realize good rinsability. However, it is difficult for this cleansing oil product to provide a cushiony feel. DISCLOSURE OF INVENTION
An objective of the present invention is to provide a composition useful as a cleansing oil product, which can have good make-up removability, good rinsability with water, good stability before being used, and good texture such as a “cushiony” feel during application.
The above objective can be achieved by a composition, comprising:
(a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid;
(b) at least one polyglyceryl fatty acid ester; and
(c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid.
The aliphatic monocarboxylic acid may comprise from 4 to 10 carbon atoms, preferably from 6 to 10 carbon atoms and more preferably from 8 to 10 carbon atoms.
The aliphatic dicarboxylic acid may comprise from 2 to 10 carbon atoms, preferably from 3 to 8 carbon atoms, and more preferably from 4 to 6 carbon atoms.
The (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid may be caprylic/capric/succinic triglyceride.
The amount of the (a) triglyceride(s) of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may range from 1% to 25% by weight, preferably from 3% to 20% by weight, and more preferably from 5% to 15% by weight, relative to the total weight of the composition.
The composition according to the present invention may comprise at least two (b) polyglyceryl fatty acid esters.
The (b) polyglyceryl fatty acid ester may comprise from 2 to 6 polyglyceryl units, preferably from 4 to 6 polyglyceryl units, and more preferably 5 or 6 polyglyceryl units.
The (b) polyglyceryl fatty acid ester may be selected from the group consisting of polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 caprylate, polyglyceryl-2 oleate, and mixtures thereof.
The amount of the (b) polyglyceryl fatty acid ester(s) in the composition according to the present invention may range from 1% to 20% by weight, preferably from 3% to 15% by weight, and more preferably from 5% to 10% by weight, relative to the total weight of the composition.
The (c) oil may be selected from plant oils, synthetic triglycerides of aliphatic monocarboxylic acids, and synthetic ester oils other than the synthetic triglycerides.
The amount of the (c) oil(s) in the composition according to the present invention may range from 50% to 95% by weight, preferably from 60% to 90% by weight, and more preferably from 70% to 85% by weight, relative to the total weight of the composition.
The composition according to the present invention may be a cosmetic composition, preferably a cleansing composition, and more preferably a skin cleansing composition.
The present invention also relates to a cosmetic process for a keratin substance, preferably the skin, comprising applying to the keratin substance the composition according to the present invention.
The present invention also relates to a use of (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in a composition comprising (b) at least one polyglyceryl fatty acid ester, and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in order to render the composition capable of providing a cushiony texture during the application of the composition onto the skin.
The present invention also relates to a use of (b) at least one polyglyceryl fatty acid ester in a composition comprising (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in order to render the composition capable of providing a cushiony texture during the application of the composition onto the skin.
BEST MODE FOR CARRYING OUT THE INVENTION
After diligent research, the inventors have discovered that it is possible to provide a composition, useful as a cleansing product, which can have good make-up removability, good rinsability with water, good stability before being used, and good texture such as a “cushiony” feel during application.
The composition according to the present invention comprises:
(a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid;
(b) at least one polyglyceryl fatty acid ester; and
(c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid.
The composition according to the present invention can have good make-up removability, good rinsability with water, good stability (in particular in a wide temperature range) before being used, and good texture such as a “cushiony” feel during application.
The “cushiony” feel here means that the fingers feel the presence of the composition which could be felt as if a cushion were present between the fingers.
The “cushiony” feel can provide the following benefits: An oil-based cleansing product with a cushiony feel or texture can decrease friction between the fingers and face during application, so skin damage can be less. Additionally, consumers feel comfort from the massaging gesture with the oil-based cleansing product with a cushiony feel or texture.
It was difficult to provide a cushiony feel or texture as well as good rinsability with water at the same time. A cushiony feel may be achieved with a thick or more viscous oil, but such a thick or more viscous oil is more difficult to rinse off with water because the thick or more viscous oil tends to stay on the skin. On the other hand, a thin or less viscous oil is easier to remove from the skin with water, but such a thin or less viscous oil cannot provide consumers with comfort during application because it tends to increase friction between the fingers and the skin due to the lack of a cushiony effect.
As a result of intensive studies, the inventors found that the use of a triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in particular caprylic/capric/succinic triglyceride, as an oil ingredient, can provide appropriate thickness or viscosity for a good cushiony feel.
Further, the inventors found that the use of a polyglyceryl fatty acid ester can provide good rinsability with water to a composition comprising the above triglyceride which is thick or viscous, and is not easy to rinse off completely from the skin with water without the polyglyceryl fatty acid ester. Furthermore, the inventors found that the use of a polyglyceryl fatty acid ester can also contribute to render the composition capable of providing a cushiony texture during the application of the composition onto the skin.
Hereafter, the present invention will be described in a detailed manner.
[Triglyceride of Aliphatic Mono- and Di-Carboxylic Acids]
The composition according to the present invention comprises at least one (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid. If two or more such (a) triglycerides are used, they may be the same or different.
It is preferable that the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be in the form of a liquid at room temperature (25°C) under atmospheric pressure (760 mmHg). In other words, it is preferable that the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid have a melting point of less than 25°C, more preferably 20°C or less, and even more preferably 15°C or less.
It is preferable that the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid not be volatile.
It is preferable that the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be derived from natural sources such as plants.
The (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid can be an acylglycerol in which a glycerol is esterified with three fatty acids wherein at least one of the fatty acids is an aliphatic monocarboxylic acid and at least one of the fatty acids is an aliphatic dicarboxylic acid. One of the fatty acids may be an aliphatic monocarboxylic acid, while two of the fatty acids may be aliphatic dicarboxylic acids. Alternatively, one of the fatty acids may be an aliphatic dicarboxylic acid, while two of the fatty acids may be aliphatic monocarboxylic acids.
The (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid can be a mixed ester of a glycerol, at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid. Preferably, the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid can be a mixed ester of a glycerol, two aliphatic monocarboxylic acid and one aliphatic dicarboxylic acid. The aliphatic monocarboxylic acid may be saturated or unsaturated. It is preferable that the aliphatic monocarboxylic acid be saturated.
The aliphatic monocarboxylic acid may comprise from 4 to 30 carbon atoms, preferably from 6 to 26 carbon atoms, and more preferably from 8 to 22 carbon atoms.
The aliphatic monocarboxylic acid may have a linear or branched carbon chain. It is preferable that the aliphatic monocarboxylic acid have a linear carbon chain.
The aliphatic monocarboxylic acid may be selected from the group consisting of hexanoic acid, heptanoic acid, octanoic acid (caprylic acid), 2-ethylhexanoic acid, nonanoic acid, decanoic acid (capric acid), undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pentadecanoic acid, hexadecanoic acid, hexyldecanoic acid, heptadecanoic acid, octadecanoic acid, isostearic acid, nonadecanoic acid, eicasanoic acid, isoarachidic acid, octyidodecanoic acid, heneicosanoic acid, and docosanoic acid.
It is preferable that the aliphatic monocarboxylic acid comprise from 4 to 10 carbon atoms, preferably from 6 to 10 carbon atoms and more preferably from 8 to 10 carbon atoms. Thus, it is even more preferable that the aliphatic monocarboxylic acid be selected from caprylic acid and capric acid.
The aliphatic dicarboxylic acid may be saturated or unsaturated. It is preferable that the aliphatic dicarboxylic acid be saturated.
The aliphatic dicarboxylic acid may comprise from 2 to 20 carbon atoms, preferably from 3 to 16 carbon atoms, and more preferably from 4 to 12 carbon atoms.
The aliphatic dicarboxylic acid may have a linear or branched carbon chain. It is preferable that the aliphatic dicarboxylic acid have a linear carbon chain.
The aliphatic dicarboxylic acid may be selected from the group consisting of oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, and sebacic acid.
It is preferable that the aliphatic dicarboxylic acid comprise from 2 to 10 carbon atoms, preferably from 3 to 8 carbon atoms and more preferably from 4 to 6 carbon atoms. Thus, it is even more preferable that the aliphatic dicarboxylic acid be selected from succinic acid and adipic acid.
It is preferable that the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be caprylic/capric/succinic triglyceride. As the caprylic/capric/succinic triglyceride, for example, Miglyol 829 marketed by IOI Oleo GmbH may be used.
The amount of the (a) triglyceride(s) of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may be 1% by weight or more, preferably 3% by weight or more, and more preferably 5% by weight or more, relative to the total weight of the composition. On the other hand, the amount of the (a) triglyceride(s) of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may be 25% by weight or less, preferably 20% by weight or less, and more preferably 15% by weight or less, relative to the total weight of the composition, with the proviso that the amount of the (a) triglyceride(s) is not zero.
Accordingly, the amount of the (a) triglyceride(s) of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may range from 1% to 25% by weight, preferably from 3% to 20% by weight, and more preferably from 5% to 15% by weight, relative to the total weight of the composition.
[Polyglyceryl Fatty Acid Ester]
The composition according to the present invention comprises at least one (b) polyglyceryl fatty acid ester. If two or more such (b) polyglyceryl fatty acid esters are used, they may be the same or different.
It is preferable for the composition according to the present invention to comprise at least two (b) polyglyceryl fatty acid esters.
It is preferable that the (b) polyglyceryl fatty acid ester have a polyglycerol moiety derived from 2 to 6 glycerols, more preferably from 4 to 6 glycerols, and even more preferably 5 or 6 glycerols. In other words, it is preferable that the (b) polyglyceryl fatty acid ester comprise from 2 to 6 polyglyceryl units, more preferably 4 to 6 polyglyceryl units, and even more preferably 5 or 6 polyglyceryl units. If all the (b) polyglyceryl fatty acid ester has a shorter polyglyceryl chain (for example, less than 10 polyglyceryl units, preferably less than 9 polyglyceryl units, and more preferably less than 8 polyglyceryl units), the stability of the composition according to the present invention may be enhanced.
The (b) polyglyceryl fatty acid ester may have an HLB (Hydrophilic Lipophilic Balance) value of from 4.0 to 16.0, preferably from 4.5 to 15.5, and more preferably from 5.0 to 15.0. If two or more polyglyceryl fatty acid esters are used, the HLB value is determined by the weight average of the HLB values of all the polyglyceryl fatty acid esters.
The (b) polyglyceryl fatty acid ester may be chosen from the mono, di and tri esters of a linear or branched, saturated or unsaturated fatty acid, preferably saturated fatty acid, including from 2 to 30 carbon atoms, preferably from 4 to 30 carbon atoms, and more preferably from 6 to 30 carbon atoms, such as lauric acid, oleic acid, stearic acid, isostearic acid, capric acid, caprylic acid, and myristic acid.
The (b) polyglyceryl fatty acid ester may be selected from the group consisting of PG2 caprylate, PG2 sesquicaprylate, PG2 dicaprylate, PG2 tricaprylate, PG2 caprate, PG2 sesquicaprate, PG2 dicaprate, PG2 tricaprate, PG2 laurate, PG2 sesquilaurate, PG2 dilaurate, PG2 trilaurate, PG2 myristate, PG2 sesquimyristate, PG2 dimyristate, PG2 trimyristate, PG2 stearate, PG2 sesquistearate, PG2 distearate, PG2 tristearate, PG2 isostearate, PG2 sesquiisostearate, PG2 diisostearate, PG2 triisostearate, PG2 oleate, PG2 sesquioleate, PG2 dioleate, PG2 trioleate, PG3 caprylate, PG3 sesquicaprylate, PG3 dicaprylate, PG3 tricaprylate, PG3 caprate, PG3 sesquicaprate, PG3 dicaprate, PG3 tricaprate, PG3 laurate, PG3 sesquilaurate, PG3 dilaurate, PG3 trilaurate, PG3 myristate, PG3 sesquimyristate, PG3 dimyristate, PG3 trimyristate, PG3 stearate, PG3 sesquistearate, PG3 distearate, PG3 tristearate, PG3 isostearate, PG3 sesquiisostearate, PG3 diisostearate, PG3 triisostearate, PG3 oleate, PG3 sesquioleate, PG3 dioleate, PG3 trioleate, PG4 caprylate, PG4 sesquicaprylate, PG4 dicaprylate, PG4 tricaprylate, PG4 caprate, PG4 sesquicaprate, PG4 dicaprate, PG4 tricaprate, PG4 laurate, PG4 sesquilaurate, PG4 dilaurate, PG4 trilaurate, PG4 myristate, PG4 sesquimyristate, PG4 dimyristate, PG4 trimyristate, PG4 stearate, PG4 sesquistearate, PG4 distearate, PG4 tristearate, PG4 isostearate, PG4 sesquiisostearate, PG4 diisostearate, PG4 triisostearate, PG4 oleate, PG4 sesquioleate, PG4 dioleate, PG4 trioleate, PG5 caprylate, PG5 sesquicaprylate, PG5 dicaprylate, PG5 tricaprylate, PG5 tetracaprylate, PG5 caprate, PG5 sesquicaprate, PG5 dicaprate, PG5 tricaprate, PG5 tetracaprate, PG5 laurate, PG5 sesquilaurate, PG5 dilaurate, PG5 trilaurate, PG5 tetralaurate, PG5 myristate, PG5 sesquimyristate, PG5 dimyristate, PG5 trimyristate, PG5 tetramyristate, PG5 stearate, PG5 sesquistearate, PG5 distearate, PG5 tristearate, PG5 tetrastearate, PG5 isostearate, PG5 sesquiisostearate, PG5 diisostearate, PG5 triisostearate, PG5 tetraisostearate, PG5 oleate, PG5 sesquioleate, PG5 dioleate, PG5 trioleate, PG5 tetraoleate, PG6 caprylate, PG6 sesquicaprylate, PG6 dicaprylate, PG6 tricaprylate, PG6 tetracaprylate, PG6 pentacaprylate, PG6 caprate, PG6 sesquicaprate, PG6 dicaprate, PG6 tricaprate, PG6 tetracaprate, PG6 pentacaprate, PG6 laurate, PG6 sesquilaurate, PG6 dilaurate, PG6 trilaurate, PG6 tetralaurate, PG6 pentalaurate, PG6 myristate, PG6 sesquimyristate, PG6 dimyristate, PG6 trimyristate, PG6 tetramyristate, PG6 pentamyristate, PG6 stearate, PG6 sesquistearate, PG6 distearate, PG6 tristearate, PG6 tetrastearate, PG6 pentastearate, PG6 isostearate, PG6 sesquiisostearate, PG6 diisostearate, PG6 triisostearate, PG6 tetraisostearate, PG6 pentaisostearate, PG6 oleate, PG6 sesquioleate, PG6 dioleate, PG6 trioleate, PG6 tetraoleate, PG6 pentaoleate, and mixtures thereof.
It is preferable that the (b) polyglyceryl fatty acid ester be chosen from: polyglyceryl mono- or di-caprate comprising from 2 to 6 glycerol units; polyglyceryl mono- or di-oleate comprising from 2 to 6 glycerol units; and polyglyceryl mono- or di-caprylate comprising from 2 to 6 glycerol units.
It is more preferable that the (b) polyglyceryl fatty acid ester be selected from the group consisting of polyglyceryl-6 dicaprate (PG6 dicaprate), polyglyceryl-6 dioleate (PG6 dioleate), polyglyceryl-6 caprylate (PG6 caprylate), polyglyceryl-2 oleate (PG2 oleate), and mixtures thereof.
It is preferable that the composition according to the present invention comprise a combination of: polyglyceryl mono- or di-caprate comprising from 2 to 6 glycerol units; and polyglyceryl mono- or di-oleate comprising from 2 to 6 glycerol units; and/or polyglyceryl mono- or di-caprylate comprising from 2 to 6 glycerol units.
It is more preferable that the composition according to the present invention comprise a combination of:
PG6 dicaprate; and
PG6 dioleate; and/or PG6 caprylate.
As PG6 dicaprate, for example, SunSoft Q-102H-C marketed by Taiyo Kagaku Co., Ltd. may be used. As PG6 dioleate, SunSoft Q-172H-C marketed by Taiyo Kagaku Co. Ltd. may be used. As PG6 caprylate, SunSoft Q-8H-C marketed by Taiyo Kagaku Co. Ltd. may be used. The amount of the (b) polyglyceryl fatty acid ester(s) in the composition according to the present invention may be 1% by weight or more, preferably 3% by weight or more, and more preferably 5% by weight or more, relative to the total weight of the composition.
On the other hand, the amount of the (b) polyglyceryl fatty acid ester(s) in the composition according to the present invention may be 20% by weight or less, preferably 15% by weight or less, and more preferably 10% by weight or less, relative to the total weight of the composition, with the proviso that the amount of the (b) polyglyceryl fatty acid(s) is not zero.
Accordingly, the amount of the (b) polyglyceryl fatty acid ester(s) in the composition according to the present invention may range from 1% to 20% by weight, preferably from 3% to 15% by weight, and more preferably from 5% to 10% by weight, relative to the total weight of the composition.
[Oil]
The composition according to the present invention comprises at least one (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid. If two or more such (c) oils are used, they may be the same or different.
The (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid may be regarded as an additional oil. Here, “oil” means a fatty compound or substance which is in the form of a liquid or a paste (non-solid) at room temperature (25°C) under atmospheric pressure (760 mmHg). Thus, the (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid has a melting point of less than 25°C, more preferably 20°C or less, and even more preferably 15°C or less. As the oils, those generally used in cosmetics can be used alone or in combination thereof. These oils may be volatile or non-volatile.
The (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid may be a non-polar oil such as a hydrocarbon oil, a silicone oil, or the like; a polar oil such as a plant or animal oil and an ester oil or an ether oil; or a mixture thereof.
The (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid may be selected from the group consisting of oils of plant or animal origin, synthetic oils, silicone oils, hydrocarbon oils, and fatty alcohols.
As examples of plant oils, mention may be made of, for example, linseed oil, camellia oil, macadamia nut oil, com oil, mink oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, jojoba oil, sunflower oil, almond oil, rapeseed oil, sesame oil, soybean oil, peanut oil, and mixtures thereof.
As examples of synthetic oils, mention may be made of alkane oils such as isododecane and isohexadecane, ester oils, ether oils, and artificial triglycerides.
The ester oils are preferably liquid esters of saturated or unsaturated, linear or branched C1-C26 aliphatic monoacids or polyacids and of saturated or unsaturated, linear or branched C1-C26 aliphatic monoalcohols or polyalcohols, the total number of carbon atoms of the esters being greater than or equal to 10.
Preferably, for the esters of monoalcohols, at least one from among the alcohol and the acid from which the esters of the present invention are derived is branched.
Among the monoesters of monoacids and of monoalcohols, mention may be made of ethyl palmitate, ethyl hexyl palmitate, isopropyl palmitate, dicaprylyl carbonate, alkyl myristates such as isopropyl myristate or ethyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl neopentanoate, and isostearyl neopentanoate.
Esters of C4-C22 dicarboxylic or tricarboxylic acids and of C1-C22 alcohols, and esters of monocarboxylic, dicarboxylic, or tricarboxylic acids and of non-sugar C4-C26 dihydroxy, trihydroxy, tetrahydroxy, or pentahydroxy alcohols may also be used.
Mention may especially be made of: diethyl sebacate; isopropyl lauroyl sarcosinate; diisopropyl sebacate; bis(2-ethylhexyl) sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; bis(2-ethylhexyl) adipate; diisostearyl adipate; bis(2-ethylhexyl) maleate; triisopropyl citrate; triisocetyl citrate; triisostearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; neopentyl glycol diheptanoate; and diethylene glycol diisononanoate.
As ester oils, one can use sugar esters and diesters of C6-C30 and preferably C12-C22 fatty acids. It is recalled that the term “sugar” means oxygen-bearing hydrocarbon-based compounds containing several alcohol functions, with or without aldehyde or ketone functions, and which comprise at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides, or polysaccharides.
Examples of suitable sugars that may be mentioned include sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, and lactose, and derivatives thereof, especially alkyl derivatives, such as methyl derivatives, for instance methylglucose.
The sugar esters of fatty acids may be chosen especially from the group comprising the esters or mixtures of esters of sugars described previously and of linear or branched, saturated or unsaturated C6-C30 and preferably C12-C22 fatty acids. If they are unsaturated, these compounds may have one to three conjugated or non-conjugated carbon-carbon double bonds.
The esters according to this variant may also be selected from monoesters, diesters, triesters, tetraesters, and polyesters, and mixtures thereof.
These esters may be, for example, oleates, laurates, palmitates, myristates, behenates, cocoates, stearates, linoleates, linolenates, caprates, and arachidonates, or mixtures thereof such as, especially, oleopalmitate, oleostearate, and palmitostearate mixed esters, as well as pentaerythrityl tetraethyl hexanoate.
More particularly, use is made of monoesters and diesters and especially sucrose, glucose, or methylglucose monooleates or dioleates, stearates, behenates, oleopalmitates, linoleates, linolenates, and oleostearates. An example that may be mentioned is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.
As examples of preferable ester oils, mention may be made of, for example, diisopropyl adipate, dioctyl adipate, 2-ethylhexyl hexanoate, ethyl laurate, cetyl octanoate, octyldodecyl octanoate, isodecyl neopentanoate, myristyl propionate, 2-ethylhexyl 2-ethylhexanoate, 2-ethylhexyl octanoate, 2-ethylhexyl caprylate/caprate, methyl palmitate, ethyl palmitate, isopropyl palmitate, dicaprylyl carbonate, isopropyl lauroyl sarcosinate, isononyl isononanoate, ethylhexyl palmitate, isohexyl laurate, hexyl laurate, isocetyl stearate, isopropyl isostearate, isopropyl myristate, isodecyl oleate, glyceryl tri(2-ethylhexanoate), pentaerythrithyl tetra(2-ethylhexanoate), 2-ethylhexyl succinate, diethyl sebacate, and mixtures thereof.
As examples of artificial triglycerides, mention may be made of, for example, capryl caprylyl glycerides, glyceryl trimyristate, glyceryl tripalmitate, glyceryl trilinolenate, glyceryl trilaurate, glyceryl tricaprate, glyceryl tricaprylate, glyceryl tri(caprate/caprylate), and glyceryl tri(caprate/ caprylate/linolenate) .
As examples of silicone oils, mention may be made of, for example, linear organopolysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and the like; cyclic organopolysiloxanes such as cyclohexasiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and the like; and mixtures thereof.
Preferably, the silicone oil is chosen from liquid polydialkylsiloxanes, especially liquid polydimethylsiloxanes (PDMS) and liquid polyorganosiloxanes comprising at least one aryl group.
These silicone oils may also be organomodified. The organomodified silicones that can be used in accordance with the present invention are silicone oils as defined above and comprise in their structure one or more organo functional groups attached via a hydrocarbon-based group.
Organopolysiloxanes are defined in greater detail in Walter Noll’s Chemistry and Technology of Silicones (1968), Academic Press. They may be volatile or non-volatile.
When they are volatile, the silicones are more particularly chosen from those having a boiling point of between 60°C and 260°C, and even more particularly from:
(i) cyclic polydialkylsiloxanes comprising from 3 to 7 and preferably 4 to 5 silicon atoms. These are, for example, octamethylcyclotetrasiloxane sold in particular under the name Volatile Silicone® 7207 by Union Carbide or Silbione® 70045 V2 by Rhodia, decamethylcyclopentasiloxane sold under the name Volatile Silicone® 7158 by Union Carbide, Silbione® 70045 V5 by Rhodia, and dodecamethylcyclopentasiloxane sold under the name Silsoft 1217 by Momentive Performance Materials, and mixtures thereof. Mention may also be made of cyclocopolymers of the type such as dimethylsiloxane/methylalkylsiloxane, such as Silicone Volatile® FZ 3109 sold by the company Union Carbide, of formula:
Mention may also be made of mixtures of cyclic polydialkylsiloxanes with organosilicon compounds, such as the mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50/50) and the mixture of octamethylcyclotetrasiloxane and oxy- 1 , 1' -bis(2,2,2 ’ ,2 ’ ,3 ,3 ’ -hexatrimethylsilyloxy)neopentane; and (ii) linear volatile polydialkylsiloxanes containing 2 to 9 silicon atoms and having a viscosity of less than or equal to 5x10-6 m2/s at 25°C. An example is decamethyltetrasiloxane sold in particular under the name SH 200 by the company Toray Silicone. Silicones belonging to this category are also described in the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, pp. 27-32, Todd & Byers, Volatile Silicone Fluids for Cosmetics. The viscosity of the silicones is measured at 25°C according to ASTM standard 445 Appendix C.
Non-volatile polydialkylsiloxanes may also be used. These non-volatile silicones are more particularly chosen from polydialkylsiloxanes, among which mention may be made mainly of polydimethylsiloxanes containing trimethylsilyl end groups.
Among these polydialkylsiloxanes, mention may be made, in a non-limiting manner, of the following commercial products: the Silbione® oils of the 47 and 70047 series or the Mirasil® oils sold by Rhodia, for instance the oil 70 047 V 500000; the oils of the Mirasil® series sold by the company Rhodia; the oils of the 200 series from the company Dow Coming, such as DC200 with a viscosity of 60 000 mm2/s; and the Viscasil® oils from General Electric and certain oils of the SF series (SF 96, SF 18) from General Electric.
Mention may also be made of polydimethylsiloxanes containing dimethylsilanol end groups known under the name dimethiconol (CTFA), such as the oils of the 48 series from the company Rhodia.
Among the silicones containing aryl groups, mention may be made of polydiarylsiloxanes, especially polydiphenylsiloxanes and polyalkylarylsiloxanes such as phenyl silicone oil.
The phenyl silicone oil may be chosen from the phenyl silicones of the following formula: in which
R1 to R10, independently of each other, are saturated or unsaturated, linear, cyclic or branched C1-C30 hydrocarbon-based radicals, preferably C1-C12 hydrocarbon-based radicals, and more preferably C1-C6 hydrocarbon-based radicals, in particular methyl, ethyl, propyl, or butyl radicals, and m, n, p, and q are, independently of each other, integers of 0 to 900 inclusive, preferably 0 to 500 inclusive, and more preferably 0 to 100 inclusive, with the proviso that the sum n+m+q is other than 0.
Examples that may be mentioned include the products sold under the following names: the Silbione® oils of the 70 641 series from Rhodia; the oils of the Rhodorsil® 70 633 and 763 series from Rhodia; the oil Dow Coming 556 Cosmetic Grade Fluid from Dow Coming; the silicones of the PK series from Bayer, such as the product PK20; and certain oils of the SF series from General Electric, such as SF 1023, SF 1154, SF 1250, and SF 1265.
As the phenyl silicone oil, phenyl trimethicone (R1 to R10 are methyl; p, q, and n = 0; m=l in the above formula) is preferable.
The organomodified liquid silicones may especially contain polyethyleneoxy and/or polypropyleneoxy groups. Mention may thus be made of the silicone KF-6017 proposed by Shin-Etsu, and the oils Silwet® L722 and L77 from the company Union Carbide.
Hydrocarbon oils may be chosen from: linear or branched, optionally cyclic, C6-C16 lower alkanes. Examples that may be mentioned include hexane, undecane, dodecane, tridecane, and isoparaffins, for instance isohexadecane, isododecane, and isodecane; and linear or branched hydrocarbons containing more than 16 carbon atoms, such as liquid paraffins, liquid petroleum jelly, polydecenes and hydrogenated polyisobutenes such as Parleam®, and squalane.
As preferable examples of hydrocarbon oils, mention may be made of, for example, linear or branched hydrocarbons such as isohexadecane, isododecane, squalane, mineral oil (e.g., liquid paraffin), paraffin, vaseline or petrolatum, naphthalenes, and the like; hydrogenated polyisobutene, isoeicosan, and decene/butene copolymer; and mixtures thereof.
It is preferable that hydrogenated or non-hydrogenated polybutene not be used as the (c) oil. The term “fatty” in the fatty alcohol means the inclusion of a relatively large number of carbon atoms. Thus, alcohols which have 4 or more, preferably 6 or more, and more preferably 12 or more carbon atoms are encompassed within the scope of fatty alcohols. The fatty alcohol may be saturated or unsaturated. The fatty alcohol may be linear or branched.
The fatty alcohol may have the structure R-OH wherein R is chosen from saturated and unsaturated, linear and branched radicals containing from 4 to 40 carbon atoms, preferably from 6 to 30 carbon atoms, and more preferably from 12 to 20 carbon atoms. In at least one embodiment, R may be chosen from C12-C20 alkyl and C12-C20 alkenyl groups. R may or may not be substituted with at least one hydroxyl group.
As examples of the fatty alcohol, mention may be made of lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, oleyl alcohol, linoleyl alcohol, palmitoleyl alcohol, arachidonyl alcohol, erucyl alcohol, and mixtures thereof.
It is preferable that the fatty alcohol be a saturated fatty alcohol.
Thus, the fatty alcohol may be selected from straight or branched, saturated or unsaturated C6-C30 alcohols, preferably straight or branched, saturated C6-C30 alcohols, and more preferably straight or branched, saturated C12-C20 alcohols.
The term “saturated fatty alcohol” here means an alcohol having a long aliphatic saturated carbon chain. It is preferable that the saturated fatty alcohol be selected from any linear or branched, saturated C6-C30 fatty alcohols. Among the linear or branched, saturated C6-C30 fatty alcohols, linear or branched, saturated C12-C20 fatty alcohols are preferably used. Any linear or branched, saturated C16-C20 fatty alcohols are more preferably used. Branched C16-C20 fatty alcohols are even more preferably used.
As examples of saturated fatty alcohols, mention may be made of lauryl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, behenyl alcohol, undecylenyl alcohol, myristyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof. In one embodiment, cetyl alcohol, stearyl alcohol, octyldodecanol, hexyldecanol, or a mixture thereof (e.g., cetearyl alcohol) as well as behenyl alcohol, can be used as a saturated fatty alcohol.
According to at least one embodiment, the fatty alcohol used in the composition according to the present invention is preferably chosen from cetyl alcohol, octyldodecanol, hexyldecanol, and mixtures thereof.
It is preferable that the (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be chosen from plant oils, synthetic triglycerides of aliphatic monocarboxylic acids, and synthetic ester oils other than the synthetic triglyceride.
As the plant oils, mention may be made of those as explained above.
As the synthetic triglycerides of aliphatic monocarboxylic acid, mention may be made of the above-mentioned artificial triglycerides such as caprylic/capric triglyceride. The triglyceride of aliphatic monocarboxylic acids can be an acylglycerol in which glycerol is esterified with three aliphatic monocarboxylic acids which are the same or different. Thus, the synthetic triglyceride of aliphatic monocarboxylic acids is a mixed ester of glycerol and aliphatic monocarboxylic acids, and does not include any unit derived from aliphatic dicarboxylic acid.
As the synthetic ester oils, mention may be made of those as explained above.
It is more preferable that the (c) oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid be chosen from plant oils.
The amount of the (c) oil(s) other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may be 50% by weight or more, preferably 60% by weight or more, and more preferably 70% by weight or more, relative to the total weight of the composition.
On the other hand, the amount of the (c) oil(s) other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may be 95% by weight or less, preferably 90% by weight or less, and more preferably 85% by weight or less, relative to the total weight of the composition, with the proviso that the amount of the (c) oil(s) is not zero.
Accordingly, the amount of the (c) oil(s) other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition according to the present invention may range from 50% to 95% by weight, preferably from 60% to 90% by weight, and more preferably from 70% to 85% by weight, relative to the total weight of the composition.
[Other Ingredients]
The composition according to the present invention may also include at least one optional or additional ingredient.
The optional or additional ingredient(s) may be selected from the group consisting of cationic, anionic, nonionic or amphoteric polymers; cationic, anionic, nonionic or amphoteric surfactants, other than the above ingredient (b); thickeners; dyes; sunscreen agents; vitamins or provitamins; fragrances; preservatives, co-preservatives, stabilizers; and mixtures thereof.
Needless to say, a person skilled in the art will take care to select the optional or additional ingredient(s) added to the composition according to the present invention such that the advantageous properties intrinsically associated with the composition according to the present invention are not, or are not substantially, adversely affected by the envisaged addition.
The amount of the optional or additional ingredient(s) is not limited, but may be from 0.001% to 10% by weight, preferably from 0.01% to 5% by weight, and more preferably from 0.1% to 1% by weight, relative to the total weight of the composition according to the present invention.
[Preparation]
The composition according to the present invention can be prepared by mixing the ingredients (a) to (c), as essential ingredients, as well as optional or additional ingredient(s), as explained above. The method and means to mix the above essential ingredients as well as optional ingredients are not limited. Any conventional method and means can be used to mix the above essential ingredients as well as optional ingredients to prepare the composition according to the present invention.
[Form]
The composition according to the present invention can be an oil-based composition. Thus, the composition according to the present invention can be in the form of a liquid and the like.
The composition according to the present invention may preferably be transparent or translucent.
Also, the composition according to the present invention may preferably be viscous, and it can exhibit very good stability when, for example, being stored. By "viscous" here is meant the fact that the composition according to the present invention does not run, in other words that it has a certain viscosity. The viscosity of the composition according to the present invention may range, for example, from 5 to 190 poises (0.5 to 19 Pa.s), preferably from 5 to 150 poises (0.5 to 15 Pa.s) and more preferably from 10 to 120 poises (1 to 12 Pa.s), this viscosity being measured using a Rheomat 180 viscometer at a shear rate of 200 s-1 and at 25°C.
Preferably, the composition according to the present invention is substantially anhydrous.
The term “substantially anhydrous” here means that the composition according to the present invention may contain only a small amount of water, and preferably no water. Thus, the amount of water may be 2% by weight or less, preferably 1% by weight or less, and more preferably 0.5% by weight or less relative to the total weight of the composition. It is particularly preferable that the composition according to the present invention contain no water as a distinct ingredient to be added intentionally. On the other hand, a small or trace amount of water may be present in the ingredient itself to be included in the composition according to the present invention.
[Cosmetic Process]
The composition according to the present invention may preferably be used as a cosmetic composition. The cosmetic composition may be a cleansing composition, such as a skin cleansing composition. The skin here encompasses facial skin, neck skin, and the scalp. In a preferable embodiment, the composition according to the present invention can be a make-up remover. The composition according to the present invention may also be used for mucosae such as the lips, and the like.
In particular, the composition according to the present invention may be intended for application onto a keratin substance such as the skin or the lips, preferably the skin. Thus, the composition according to the present invention can be used for a cosmetic process for the skin or the lips, preferably a cleansing process for the skin or the lips, and more preferably a cleansing process for the skin to remove make-up on the skin.
The cosmetic process or cosmetic use for a keratin substance such as the skin or the lips, according to the present invention comprises, at least, the step of applying onto the keratin substance the composition according to the present invention. The cosmetic process or cosmetic use for a keratin substance such as the skin or the lips according to the present invention may also comprise the step of rinsing off the composition according to the present invention from the keratin substance. The rinsing step can use water for rinsing off the composition according to the present invention from the keratin substance.
[Use]
The present invention also relates to: a use of (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in a composition comprising (b) at least one polyglyceryl fatty acid ester, and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in order to render the composition capable of providing a cushiony texture during the application of the composition onto the skin, or a use of (b) at least one polyglyceryl fatty acid ester in a composition comprising (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in order to render the composition capable of providing a cushiony texture during the application of the composition onto the skin.
EXAMPLES
The present invention will be described in a more detailed manner by way of examples. However, these examples should not be construed as limiting the scope of the present invention. Examples 1-3 and Comparative Examples 1-3
[Preparation]
Each of the cleansing cosmetic compositions according to Examples 1-3 (Ex. 1 to Ex. 3) and Comparative Examples 1-3 (Comp. Ex. 1 to Comp. Ex. 3) was prepared by mixing the ingredients shown in column “A” in Table 1 at around 70°C to form an A-phase, mixing the ingredients shown in column “B” in Table 1 at around 70°C to form a B-phase, and then mixing the A-phase and B-phase to obtain a mixture, followed by cooling the mixture thus obtained to room temperature. The numerical values for the amounts of the ingredients shown in Table 1 are all based on “% by weight” as active raw materials, relative to the total weight of the composition.
[Evaluations]
(Feeling After Rinsing Oft) 4 mL of each composition was applied onto the face of 5 panelists using the fingers, and massaged with a circular gesture on the entire face for 30 seconds and on the eye area for 10 seconds. Finally, the composition was rinsed off from the entire face, in particular the eye area, with lukewarm water. The panelists evaluated the feeling just after rinsing off (skin finish) with a grade of from 1 (very poor) to 5 (excellent).
The average scores are shown in Table 1.
(Texture (Cushiony Feel)) 4 mL of each composition was applied onto the face of 5 panelists using the fingers, and massaged with a circular gesture on the entire face for 30 seconds and on the eye area for 10 seconds. The panelists evaluated the cushiony feel during application with a grade of from 1 (very thin) to 5 (very cushiony). The average scores are shown in Table 1.
(Make-Up Removability)
Each of 5 panelists made-up their faces by applying a mascara product (MAYBELLINE Volum'Express Elypercurl Waterproof N 01 Black) to the eyelashes with a brush with a total of 40 strokes (each time, the brush was dipped into the mascara bottle).
4 mL of each composition was then applied onto the face of the 5 panelists using the fingers, and massaged with a circular gesture on the entire face for 30 seconds and on the eye area for 10 seconds. Finally, the composition was rinsed off from the entire face, in particular the eye area, with lukewarm water. The panelists evaluated the makeup removability with a grade of from 1 (very poor) to 5 (very good), and the average of the evaluations was categorized in accordance with the following criteria. Very Good (5.0 to 4.0): A makeup residue was not observed at all.
Good (3.9 to 3.0): A makeup residue was mostly not observed.
Poor (2.9 to 2.0): A makeup residue was slightly observed.
Very Poor (1.9 to 1.0): A makeup residue was visibly observed. The results are shown in Table 1.
(Stability)
Each composition was filled into a transparent glass bottle, and the glass bottle was held under temperature conditions of -5°C, 4°C, 25°C, 40°C, 45°C, and 50°C for 2 months. The aspect of the bottle was then investigated for the degree of change (transparency, color, and odor), and evaluated by the following criteria.
Very Good: Almost the same conditions as production. Good: Small changes in transparency, color, and odor were observed. Poor: Changes in transparency, color, and odor were clearly observed. Either precipitation or a turbid aspect was also clearly observed.
Very Poor: Changes in transparency, color, and odor were remarkably observed. Either precipitation or a turbid aspect was also remarkably observed.
The results are shown in Table 1.
Examples 1-3 show that the use of a combination of (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid such as caprylic/capric/succinic triglyceride, (b) polyglyceryl fatty acid ester(s), and (c) additional oil(s) such as plant oil and synthetic ester oil, can provide a composition with good make-up removability, good rinsability with water, good stability over temperature change in a wide range, and good texture, i.e., a “cushiony” feel during application. Thus, the composition is suitable for cleansing, and the therefore, it can be appropriate as a cleansing product for cosmetic purposes.
Comparative Examples 1 and 2 show that if the above (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid is not used, the cushiony texture during application becomes worse.
Comparative Example 3 shows that if the above (b) polyglyceryl fatty acid is not used (instead, another nonionic surfactant, i.e., PEG-20 glyceryl triisostearate, is used), the cushiony texture during application becomes worse.

Claims

1. A composition, comprising:
(a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid;
(b) at least one polyglyceryl fatty acid ester; and
(c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid.
2. The composition according to Claim 1, wherein the aliphatic monocarboxylic acid comprises from 4 to 10 carbon atoms, preferably from 6 to 10 carbon atoms and more preferably from 8 to 10 carbon atoms.
3. The composition according to Claim 1 or 2, wherein the aliphatic dicarboxylic acid comprises from 2 to 10 carbon atoms, preferably from 3 to 8 carbon atoms, and more preferably from 4 to 6 carbon atoms.
4. The composition according to any one of Claims 1 to 3, wherein the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid is caprylic/capric/succinic triglyceride.
5. The composition according to any one of Claims 1 to 4, wherein the amount of the
(a) triglyceride(s) of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in the composition ranges from 1% to 25% by weight, preferably from 3% to 20% by weight, and more preferably from 5% to 15% by weight, relative to the total weight of the composition.
6. The composition according to any one of Claims 1 to 5, wherein the composition comprises at least two (b) polyglyceryl fatty acid esters.
7. The composition according to any one of Claims 1 to 6, wherein the (b) polyglyceryl fatty acid ester comprises from 2 to 6 polyglyceryl units, preferably from 4 to 6 polyglyceryl units, and more preferably 5 or 6 polyglyceryl units.
8. The composition according to any one of Claims 1 to 7, wherein the (b) polyglyceryl fatty acid ester is selected from the group consisting of polyglyceryl-6 dicaprate, polyglyceryl-6 dioleate, polyglyceryl-6 caprylate, polyglyceryl-2 oleate, and mixtures thereof.
9. The composition according to any one of Claims 1 to 8, wherein the amount of the
(b) polyglyceryl fatty acid ester(s) in the composition ranges from 1 % to 20% by weight, preferably from 3% to 15% by weight, and more preferably from 5% to 10% by weight, relative to the total weight of the composition.
10. The composition according to any one of Claims 1 to 9, wherein the (c) oil is selected from plant oils, synthetic triglycerides of aliphatic monocarboxylic acids, and synthetic ester oils other than the synthetic triglycerides.
11. The composition according to any one of Claims 1 to 10, wherein the amount of the
(c) oil(s) in the composition ranges from 50% to 95% by weight, preferably from 60% to 90% by weight, and more preferably from 70% to 85% by weight, relative to the total weight of the composition.
12. The composition according to any one of Claims 1 to 11, wherein the composition is a cosmetic composition, preferably a cleansing composition, and more preferably a skin cleansing composition.
13. A cosmetic process for a keratin substance, preferably the skin, comprising applying to the keratin substance the composition according to any one of Claims 1 to 12.
14. A use of (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid in a composition comprising (b) at least one polyglyceryl fatty acid ester, and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in order to render the composition capable of providing a cushiony texture during the application of the composition onto the skin.
15. A use of (b) at least one polyglyceryl fatty acid ester in a composition comprising (a) at least one triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid and (c) at least one oil other than the (a) triglyceride of at least one aliphatic monocarboxylic acid and at least one aliphatic dicarboxylic acid, in order to render the composition capable of providing a cushiony texture during the application of the composition onto the skin.
EP20772136.6A 2019-08-28 2020-08-07 Composition suitable for cleansing Pending EP4021390A1 (en)

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WO2015108176A1 (en) * 2014-01-20 2015-07-23 高級アルコール工業株式会社 Novel ester compound, and cosmetic component and cosmetic product each containing same
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