WO2018112679A1 - Composition et procédé - Google Patents

Composition et procédé Download PDF

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Publication number
WO2018112679A1
WO2018112679A1 PCT/CN2016/000705 CN2016000705W WO2018112679A1 WO 2018112679 A1 WO2018112679 A1 WO 2018112679A1 CN 2016000705 W CN2016000705 W CN 2016000705W WO 2018112679 A1 WO2018112679 A1 WO 2018112679A1
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Prior art keywords
weight
composition
composition according
organopolysiloxane elastomer
anyone
Prior art date
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PCT/CN2016/000705
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English (en)
Inventor
Runshuang LU
Zheng Chen
Original Assignee
L'oreal
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Priority to CN201680092094.7A priority Critical patent/CN110300574A/zh
Priority to PCT/CN2016/000705 priority patent/WO2018112679A1/fr
Publication of WO2018112679A1 publication Critical patent/WO2018112679A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
    • A61K8/894—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/06—Emulsions
    • A61K8/064—Water-in-oil emulsions, e.g. Water-in-silicone emulsions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89—Polysiloxanes
    • A61K8/895—Polysiloxanes containing silicon bound to unsaturated aliphatic groups, e.g. vinyl dimethicone
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations

Definitions

  • the present invention relates to the field of cosmetics, and especially to the field of compositions for protecting the skin from UV radiation. Further, the present invention relates to the corresponding non-therapeutic cosmetic process involving use of same compositions.
  • Whitening and brightening of the skin is always high interest of the consumers, especially those who have a dark or dull skin tone.
  • Cosmetic compositions are used to meet the expectations of the consumers, from many different aspects, one of which is anti UV radiation. Many formulations have been developed to date to achieve this goal.
  • UV products containing organic hydrophobic and/or hydrophilic UV-screening agents are known. These products are more and more favored by the consumers thanks to its ease of use and cosmetic pleasantness. Unlike the conventional UV products, these up-to-date UV products encompass less greasy feelings after application on the skin.
  • UV products are still to be improved, in terms of freshness and watery feeling, in particular for the needs of Asian consumers. They may still be considered as having a oily or greasy feeling after application by consumers, in particular those who have oily skin type.
  • One way to have watery feeling is to increase the amount of aqueous phase, or in particular, water, in the products, which resulting in a water breaking sensation upon application on keratin materials, in particular the skin.
  • this is usually in contradiction with the stability of the product usually in the form of emulsion. Besides, this may impact the anti UV radiation effect of the product. Therefore, balancing the stability overtime and the watery feeling is one of the difficulties the man skilled in the art is faced. Besides, it is difficult to maintain the desired anti UV radiation effect of the products, and meanwhile obtaining the properties aforementioned.
  • compositions in particular sunscreen compositions, which are capable, on application, of providing a very fresh feeling via the water droplets on keratin materials in particular the skin.
  • compositions in particular sunscreen compositions, which are very easy to apply to the skin with a good spreadability, distributed homogeneously over the skin and provide the user with a feeling of freshness and a long time moisturization after application.
  • compositions in particular sunscreen compositions, which are very thin and light, and have a very good balance between skincare efficacy perception (fresh and watery) and stability overtime.
  • sunscreen compositions which are very thin and light, and have a very good balance between skincare efficacy perception (fresh and watery) and stability overtime.
  • Such a composition also presents good anti UV radiation effect to the keratin materials.
  • the present inventors have discovered that the specific combination of (i) at least one non-emulsifying organopolysiloxane elastomer, (ii) at least one emulsifying organopolysiloxane elastomer, (iii) at least one C 8 -C 22 alkyl dimethicone copolyol, and (iv) at least one organic hydrophilic UV-screening agent may satisfy one or more of the abovementioned requirements.
  • the other subject of the present invention is a process for making up/caring for the keratin materials, for example the skin, by applying to the keratin materials the composition of the present invention.
  • the term ′′comprising a′′ should be understood as being synonymous with ′′comprising at least one′′ , unless otherwise mentioned. Moreover, the expression ′′at least one′′ used in the present description is equivalent to the expression ′′one or more′′ .
  • UV-screening ability it is in particular meant that the SPF (Sun Protection Factor) and/or PPD (Persistent Pigment Darkening) value of a composition is sufficient to market such a composition as sunscreen composition.
  • SPF Sun Protection Factor
  • PPD Persistent Pigment Darkening
  • SPF is preferably measured according to International standard EN ISO 24444: 2010 Cosmetics -Sun protection test methods -In vivo determination of the sun protection factor (SPF) .
  • PPD skin darkening that persists more than 2 h after the end of UVA exposure. It is determined according to ISO 24442: 2011 (en) Cosmetics -Sun protection test methods -In vivo determination of sunscreen UVA protection.
  • the term “keratin material” means the skin (of the body, face and around the eyes) , nails, lips or mucous membranes. In particular, it means the skin.
  • the term “sunscreen composition” or “sunscreen agent” means any composition or ingredient that absorbs or scatters at least a part of UV radiations and prevents UV radiation from reaching the skin, especially deeper layers of the skin (typically the dermis) . This term is broadly used to cover sunblocks and sunscreens. The efficacy of such compositions or agents is typically measured by the SPF and/or PPD value.
  • the present invention relates to a composition, especially in form of water-in-silicone emulsion, comprising an aqueous phase and (i) at least one non-emulsifying organopolysiloxane elastomer, (ii) at least one emulsifying organopolysiloxane elastomer, (iii) at least one C 8 -C 22 alkyl dimethicone copolyol, and (iv) at least one organic hydrophilic UV-screening agent.
  • the composition is specifically a cosmetic composition, in particular a sunscreen composition.
  • the present sunscreen composition achieves a very good balance between the stability overtime of the composition per se and watery/fresh feeling after applied to e.g. skin, as well as a favorable UV-screening ability.
  • the present sunscreen composition further provides water release effect due to its aqueous nature.
  • the composition comprises at least one non-emulsifying organopolysiloxane elastomer.
  • the non-emulsifying organopolysiloxane elastomer herein is necessarily needed to stabilize the silicone phase of the present composition and further to improve skin sensory such as freshness.
  • the non-emulsifying organopolysiloxane elastomer is an organopolysiloxane elastomer not containing a hydrophilic chain, such as polyoxyalkylene or polyglycerolated units.
  • the organopolysiloxane elastomer not containing a hydrophilic chain, or non-emulsifying silicone elastomer can be defined as being an elastomeric crossbonded organopolysiloxane that may be obtained by crosslinking addition reaction of diorganopolysiloxane containing at least one hydrogen bonded to silicon and of diorganopolysiloxane containing ethylenically unsaturated groups bonded to silicon, especially in the presence of a platinum catalyst; or by dehydrogenation crosslinking coupling reaction between a diorganopolysiloxane with hydroxyl end groups and a diorganopolysiloxane containing at least one hydrogen bonded to silicon, especially in the presence of an organotin compound; or by crosslinking coupling reaction of a diorganopolysiloxane with hydroxyl end groups and of a hydrolysable organopolysilane; or by thermal crosslinking of organo
  • the elastomeric crossbonded organopolysiloxane is obtained by crosslinking addition reaction (A2) of diorganopolysiloxane containing at least two hydrogens each bonded to a silicon, and (B2) of diorganopolysiloxane containing at least two ethylenically unsaturated groups bonded to silicon, especially in the presence (C2) of a platinum catalyst, as described, for example, in patent application EP-A-295 886.
  • the organopolysiloxane may be obtained by reaction of dimethylpolysiloxane with dimethylvinylsiloxy end groups and of methylhydrogenopolysiloxane with trimethylsiloxy end groups, in the presence of a platinum catalyst.
  • Compound (A2) is the base reagent for the formation of elastomeric organopolysiloxane, and the crosslinking is performed by addition reaction of compound (A2) with compound (B2) in the presence of the catalyst (C2) .
  • Compound (A2) is advantageously a diorganopolysiloxane containing at least two lower (for example C 2 -C 4 ) alkenyl groups; the lower alkenyl group may be chosen from vinyl, allyl and propenyl groups. These lower alkenyl groups may be located in any position on the organopolysiloxane molecule, but are preferably located at the ends of the organopolysiloxane molecule.
  • the organopolysiloxane (A2) may have a branched-chain, linear-chain, cyclic or network structure, but the linear-chain structure is preferred.
  • Compound (A2) may have a viscosity ranging from the liquid state to the gum state. Preferably, compound (A2) has a viscosity of at least 100 centistokes at 25°C.
  • the organopolysiloxanes (A2) may be chosen from methylvinylsiloxanes, methylvinylsiloxane-dimethylsiloxane copolymers, dimethylpolysiloxanes with dimethylvinylsiloxy end groups, dimethylsiloxane-methylphenylsiloxane copolymers with dimethyl-vinylsiloxy end groups, dimethylsiloxane-diphenylsilox-ane-methylvinylsiloxane copolymers with dimethylvinylsiloxy end groups, dimethylsiloxane-methylvinylsiloxane copolymers with trimethylsiloxy end groups, dimethylsiloxane-methylphenylsiloxane-methylvinylsiloxane copolymers with trimethylsiloxy end groups, methyl (3, 3, 3-trifluoro-propyl) polysiloxanes with dimethylvinylsiloxy end groups,
  • Compound (B2) is in particular an organopolysiloxane containing at least two hydrogens bonded to silicon in each molecule and is thus the crosslinking agent for compound (A2) .
  • the sum of the number of ethylenic groups per molecule of compound (A2) and the number of hydrogen atoms bonded to silicon per molecule of compound (B2) is at least 4.
  • Compound (B2) may be in any molecular structure, especially of linear-chain or branched-chain structure, or cyclic structure.
  • Compound (B2) may have a viscosity at 25°C ranging from 1 to 50 000 centistokes, especially in order to have good miscibility with compound (A) .
  • compound (B2) is added in an amount such that the molecular ratio between the total amount of hydrogen atoms bonded to silicon in compound (B2) and the total amount of all of the ethylenically unsaturated groups in compound (A2) is within the range from 1/1 to 20/1.
  • Compound (B2) may be chosen from methylhydrogenopolysiloxanes with trimethylsiloxy end groups, dimethyl-siloxane-methylhydrogenosiloxane copolymers with trimethylsiloxy end groups, and dimethylsiloxane-methylhydrogenosiloxane cyclic copolymers.
  • Compound (C2) is the crosslinking reaction catalyst, and is especially chloroplatinic acid, chloroplatinic acid-olefin complexes, chloroplatinic acid-alkenylsiloxane complexes, chloroplatinic acid-diketone complexes, platinum black and platinum on a support.
  • the catalyst (C2) is preferably added in from 0.1 to 1000 parts by weight, better still from 1 to 100 parts by weight, as clean platinum metal per 1000 parts by weight of the total amount of compounds (A2) and (B2) .
  • organic groups may be bonded to silicon in the organopolysiloxanes (A2) and (B2) described above, for instance alkyl groups such as methyl, ethyl, propyl, butyl or octyl; substituted alkyl groups such as 2-phenylethyl, 2-phenylpropyl or 3, 3, 3-trifluoropropyl; aryl groups such as phenyl, tolyl or xylyl; substituted aryl groups such as phenylethyl; and substituted monovalent hydrocarbon-based groups such as an epoxy group, a carboxylate ester group or a mercapto group.
  • alkyl groups such as methyl, ethyl, propyl, butyl or octyl
  • substituted alkyl groups such as 2-phenylethyl, 2-phenylpropyl or 3, 3, 3-trifluoropropyl
  • aryl groups such as phenyl, tolyl or xyly
  • the non-emulsifying organopolysiloxane elastomer is mixed with at least one hydrocarbon-based oil and/or one silicone oil to form a gel.
  • the non-emulsifying organopolysiloxane elastomer is particularly in the form of non-spherical particles.
  • the silicone oil mixed with the organopolysiloxane elastomer to form a gel is a linear silicone oil (dimethylsiloxane) with molecular weight ranging from 1 to 350cst at 25°C, in particular 2 to 100cst and preferably 2 to 10cst.
  • the silicone oil viscosity might be measured according to ASTM D-445 norm.
  • DIMETHICONE such as the commercial references ⁇ KSG-6 ⁇ and ⁇ KSG-16 ⁇ sold by Shin Etsu;
  • DIMETHICONE (and) DIMETHICONE CROSSPOLYMER, such as the commercial reference ⁇ DC9041 ⁇ sold by Dow Corning.
  • the non-emulsifying organopolysiloxane elastomer is mixed with a linear silicone oil having a viscosity ranging from 1 to 100cst at 25°C, in particular 1 to 10cst at 25°C, in particular the one having INCI Name DIMETHICONE/VINYL DIMETHICONE CROSSPOLYMER (and) DIMETHICONE, such as the commercial references ⁇ KSG-6 ⁇ and ⁇ KSG-16 ⁇ sold by Shin Etsu, preferably KSG-16.
  • non-emulsifying elastomers that may be used further include those sold under the names KSG-6, KSG-15, KSG-16, KSG-18, KSG-31, KSG-32, KSG-33, KSG-41, KSG-42, KSG-43 and KSG-44 by the company Shin-Etsu, DC9040, DC9041, DC9509, DC9505 and DC9506 by the company Dow Corning, Gransil by the company Grant Industries, and SFE 839 by the company General Electric.
  • the non-emulsifying elastomer that may more particularly be used include those sold under the names KSG-6, KSG-15, KSG-16, KSG-18, KSG-41, KSG-42, KSG-43 and KSG-44 by the company Shin-Etsu, more particularly those sold under the names KSG-15 and KSG-16, and preferentially the one sold under the name KSG-16.
  • KSG-16 is a gel composed of 24%of dimethicone/vinyl dimethicone crosspolymer, and of 76%of dimethicone.
  • KSG15 is a gel composed of 6%of dimethicone/vinyl dimethicone crosspolymer, and of 94%of cyclodimethicone.
  • composition according to the invention may comprise such a non-emulsifying organopolysiloxane elastomer, alone or as a mixture, in an amount ranging from 0.01%to 10%by weight, preferably from 0.5%to 5%by weight, and more particularly from 0.1%to 3%by weight, of active material relative to the total weight of the composition.
  • the composition comprises at least one emulsifying organopolysiloxane elastomer.
  • emulsifying organopolysiloxane elastomer means an organopolysiloxane elastomer comprising at least one hydrophilic chain, such as polyoxyalkylenated organopolysiloxane elastomers and polyglycerolated organopolysiloxane elastomers.
  • the emulsifying organopolysiloxane elastomer may be chosen from polyoxyalkylenated organopolysiloxane elastomers.
  • the polyoxyalkylenated organopolysiloxane elastomer is a crosslinked organopolysiloxane elastomer that may be obtained by crosslinking addition reaction of diorganopolysiloxane containing at least one hydrogen bonded to silicon and of a polyoxyalkylene containing at least two ethylenically unsaturated groups.
  • the polyoxyalkylenated organopolysiloxane elastomer is obtained by crosslinking addition reaction (A1) of diorganopolysiloxane containing at least two hydrogens each bonded to a silicon, and (B1) of polyoxyalkylene containing at least two ethylenically unsaturated groups, especially in the presence (C1) of a platinum catalyst, as described, for instance, in patents US 5 236 986 and US 5 412 004.
  • the organopolysiloxane may be obtained by reaction of polyoxyalkylene (especially polyoxyethylene and/or polyoxypropylene) with dimethylvinylsiloxy end groups and of methylhydrogenopolysiloxane with trimethylsiloxy end groups, in the presence of a platinum catalyst.
  • polyoxyalkylene especially polyoxyethylene and/or polyoxypropylene
  • the organic groups bonded to the silicon atoms of compound (A1) may be alkyl groups containing from 1 to 18 carbon atoms, such as methyl, ethyl, propyl, butyl, octyl, decyl, dodecyl (or lauryl) , myristyl, cetyl or stearyl; substituted alkyl groups such as 2-phenylethyl, 2-phenylpropyl or 3, 3, 3-trifluoropropyl; aryl groups such as phenylethyl; and substituted monovalent hydrocarbon-based groups such as an epoxy group, a carboxylate ester group or a mercapto group.
  • Compound (A1) may thus be chosen from methylhydrogenopolysiloxanes containing trimethylsiloxy end groups, dimethylsiloxane-methylhydrogenosiloxane copolymers containing trimethylsiloxy end groups, dimethylsiloxane-methylhydrogenosiloxane cyclic copolymers, dimethylsiloxane-methylhydrogenosiloxane-laurylmethylsiloxane copolymers containing trimethylsiloxy end groups.
  • Compound (C1) is the catalyst for the crosslinking reaction, and is especially chloroplatinic acid, chloroplatinic acid-olefin complexes, chloroplatinic acid-alkenylsiloxane complexes, chloroplatinic acid-diketone complexes, platinum black and platinum on a support.
  • the polyoxyalkylenated organopolysiloxane elastomers may be formed from divinyl compounds, in particular polyoxyalkylenes containing at least two vinyl groups, which react with Si-H bonds of a polysiloxane.
  • Polyoxyalkylenated elastomers are especially described in patents US 5 236 986, US 5 412 004, US 5 837 793 and US 5 811 487, the content of which is incorporated by reference.
  • Polyoxyalkylenated organopolysiloxane elastomers that may be used include those sold under the names KSG-21, KSG-20, KSG-30, KSG-31, KSG-32, KSG-33, KSG-210, KSG-310, KSG-320, KSG-330 and KSG-340 by the company Shin-Etsu, and DC9010 and DC9011 by the company Dow Corning.
  • the emulsifying organopolysiloxane elastomer may also be chosen from polyglycerolated organopolysiloxane elastomers.
  • the polyglycerolated organopolysiloxane elastomer according to the invention is an organopolysiloxane elastomer that may be obtained by crosslinking addition reaction of diorganopolysiloxane containing at least one hydrogen bonded to silicon and of polyglycerolated compounds containing ethylenically unsaturated groups, especially in the presence of a platinum catalyst.
  • the polyglycerolated organopolysiloxane elastomer is obtained by crosslinking addition reaction (A2) of diorganopolysiloxane containing at least two hydrogens each bonded to a silicon, and (B2) of glycerolated compounds containing at least two ethylenically unsaturated groups, especially in the presence (C2) of a platinum catalyst.
  • the organopolysiloxane may be obtained by reaction of a dimethylvinylsiloxy-terminated polyglycerolated compound and of trimethylsiloxy-terminated methylhydropolysiloxane, in the presence of a platinum catalyst.
  • Compound (A2) is the base reagent for the formation of an organopolysiloxane elastomer, and the crosslinking is performed by addition reaction of compound (A2) with compound (B2) in the presence of the catalyst (C2) .
  • Compound (A2) is in particular an organopolysiloxane containing at least two hydrogen atoms bonded to different silicon atoms in each molecule.
  • Compound (A2) may have any molecular structure, especially a linear-chain or branched-chain structure or a cyclic structure.
  • Compound (A2) may have a viscosity at 25°C ranging from 1 to 50 000 centistokes, especially so as to be miscible with compound (B2) .
  • the organic groups bonded to the silicon atoms in compound (A2) may be alkyl groups containing from 1 to 18 carbon atoms, such as methyl, ethyl, propyl, butyl, octyl, decyl, dodecyl (or lauryl) , myristyl, cetyl or stearyl; substituted alkyl groups such as 2-phenylethyl, 2-phenylpropyl or 3, 3, 3-trifluoropropyl; aryl groups such as phenyl, tolyl or xylyl; substituted aryl groups such as phenylethyl; and substituted monovalent hydrocarbon-based groups such as an epoxy group, a carboxylate ester group or a mercapto group.
  • the organic group is chosen from methyl, phenyl and lauryl groups.
  • Compound (A2) may thus be chosen from methylhydrogenopolysiloxanes containing trimethylsiloxy end groups, dimethylsiloxane-methylhydrogenosiloxane copolymers containing trimethylsiloxy end groups, dimethylsiloxane-methylhydrogenosiloxane cyclic copolymers and dimethylsiloxane-methylhydrogenosiloxane-laurylmethylsiloxane copolymers containing trimethylsiloxy end groups.
  • Compound (B2) may be a polyglycerolated compound corresponding to formula (B’ ) below:
  • n is an integer ranging from 2 to 200, preferably ranging from 2 to 100, preferably ranging from 2 to 50, preferably ranging from 2 to 20, preferably ranging from 2 to 10 and preferentially ranging from 2 to 5, and in particular n is equal to 3;
  • Gly denotes:
  • the sum of the number of ethylenic groups per molecule in compound (B2) and of the number of hydrogen atoms bonded to silicon atoms per molecule in compound (A2) is at least 4.
  • compound (A2) it is advantageous for compound (A2) to be added in an amount such that the molar ratio between the total amount of hydrogen atoms bonded to silicon atoms in compound (A2) and the total amount of all the ethylenically unsaturated groups in compound (B2) is within the range from 1/1 to 20/1.
  • Compound (C2) is the catalyst for the crosslinking reaction, and is especially chloroplatinic acid, chloroplatinic acid-olefin complexes, chloroplatinic acid-alkenylsiloxane complexes, chloroplatinic acid-diketone complexes, platinum black and platinum on a support.
  • the catalyst (C2) is preferably added in an amount of from 0.1 to 1000 parts by weight and better still from 1 to 100 parts by weight, as clean platinum metal, per 1000 parts by weight of the total amount of compounds (A2) and (B2) .
  • the polyglycerolated organopolysiloxane elastomer is conveyed in gel form in at least one hydrocarbon-based oil and/or one silicone oil. In these gels, the polyglycerolated elastomer is often in the form of non-spherical particles.
  • Polyglycerolated organopolysiloxane elastomers that may be used include those sold under the names KSG-710, KSG-810, KSG-820, KSG-830 and KSG-840 by the company Shin-Etsu.
  • composition according to the invention may comprise such an emulsifying organopolysiloxane elastomer, alone or as a mixture, in an amount ranging from 0.01%to 10%by weight, preferably from 0.1%to 5%by weight, and more particularly from 0.5%to 53%by weight, of active material relative to the total weight of the composition.
  • the composition comprises at least one C 8 -C 22 alkyl dimethicone copolyol.
  • This C 8 -C 22 alkyl dimethicone copolyol of the invention is more particularly an oxypropylenated and/or oxyethylenated polymethyl (C 8 -C 22 ) alkyl dimethyl methyl siloxane.
  • the C 8 -C 22 alkyl dimethicone copolyol is advantageously a compound of the following formula (IV) :
  • - PE represents from groups (-C 2 H 4 O) x - (C 3 H 6 O) y -R, wherein R is chosen from a hydrogen atom and an alkyl radical comprising from 1 to 4 carbon atoms, x is an integer ranging from 0 to 100, and y is an integer ranging from 0 to 80, provided that x and y are not simultaneously equal to 0; and
  • - m is an integer ranging from 1 to 40
  • n is an integer ranging from 10 to 200
  • o is an integer ranging from 1 to 100
  • p is an integer ranging from 7 to 21
  • q is an integer ranging from 0 to 4.
  • R is a hydrogen atom
  • m is an integer ranging from 1 to 10
  • n is an integer ranging from 10 to 100
  • o is an integer ranging from 1 to 30, pis 15, and q is 3.
  • the at least one C 8 -C 22 alkyl dimethicone copolyol of the present invention is chosen from cetyl dimethicone copolyols such as the product marketed under the name Abil EM-90 by the company Goldschmidt.
  • the at least one C 8 -C 22 alkyl dimethicone copolyol may be present, for example, in an amount ranging from 0.1%to 1.5%by weight, preferably from 0.1%to 1%by weight, and more particularly from 0.1%to 0.8%by weight, relative to the total weight of the composition.
  • the C 8 -C 22 alkyl dimethicone copolyol is a cetyl dimethicone copolyol, and more particularly the product marketed under the name Abil EM-90 by the company Goldschmidt.
  • Abil EM-90 is a cetyl PEG/PPG-10/1 dimethicone.
  • compositions of the invention comprise a cetyl PEG/PPG-10/1 dimethicone as C 8 -C 22 alkyl dimethicone copolyol, herein in an amount ranging from 0.1%to 1.5%by weight, preferably from 0.1%to 1.2 %by weight, and more particularly from 0.3%to 0.9%by weight, relative to the total weight of the composition.
  • the composition comprises, preferably in the aqueous phase, at least one organic hydrophilic UV-screening agent.
  • the organic hydrophilic UV-screening agent is needed herein to stabilize the aqueous phase of the present composition.
  • hydrophilic UV-screening agent′′ means any organic or mineral sunscreen agent capable of being fully dissolved in molecular form in a liquid aqueous phase or of being dissolved in colloidal form (for example in micellar form) in a liquid aqueous phase.
  • the preferred hydrophilic UVA screening agent is Terephthalylidene Dicamphor Sulfonic Acid, which is in particular available under the trade name SX sold by the company CHIMEX.
  • PABA p-aminobenzoic acid
  • PEG-25 PABA particularly sold under the trade name ′′UVINUL P25′′ by BASF,
  • Phenylbenzimidazole Sulfonic Acid particularly sold under the trade name ′′EUSOLEX 232′′ by MERCK,
  • the preferred hydrophilic UVB screening agent is Terephthalylidene Dicamphor Sulfonic Acid, Phenylbenzimidazole Sulfonic Acid, or a mixture thereof.
  • Benzophenone derivatives comprising at least one sulfonic radical such as
  • Benzophenone-4 particularly sold under the trade name ′′UVINUL MS 40′′ by BASF,
  • the composition comprises, in the aqueous phase, at least one hydrophilic UV-screening agent selected from the group consisting of Terephthalylidene Dicamphor Sulfonic Acid, Phenylbenzimidazole Sulfonic Acid, or a mixture thereof.
  • the organic hydrophilic UV-screening agent is present in the composition of the present invention, in an amount ranging from 1%to 40%by weight, more preferably from 5%to 20%by weight, relative to the total weight of the composition.
  • the composition comprises from 1%to 10%by weight, more preferably from 1%to 5%by weight, of the at least one non-emulsifying organopolysiloxane elastomer, from 1%to 5%by weight, more preferably from 1%to 5%by weight, of the at least one emulsifying organopolysiloxane elastomer, from 0.1%to 1.2%by weight, more preferably from 0.3%to 0.9%by weight, of cetyl PEG/PPG-10/1 dimethicone, and from 1%to 40%by weight, more preferably from 5%to 20%by weight, of the at least one organic hydrophilic UV-screening agent, in particularly terephthalylidene dicamphor sulfonic acid, phenylbenzimidazole sulfonic acid or a mixture thereof.
  • the at least one organic hydrophilic UV-screening agent in particularly terephthalylidene dicamphor sulfonic acid, phenylbenzimidazo
  • the composition may comprise at least one organic hydrophobic UV-screening agent, if needed to further improve the UV-screening ability of the present composition.
  • hydrophobic UV-screening agent′′ or ′′lipophilic screening agent′′ means any organic or mineral sunscreen agent which can be fully dissolved in molecular state in a liquid fatty phase or which can be dissolved in colloidal form (for example in micellar form) in a liquid fatty phase.
  • Ethylhexyl Dimethyl PABA (ESCALOL 507 from ISP) ;
  • Ethylhexyl Salicylate particularly sold under the name ′′NEO HELIOPAN OS′′ by SYMRISE;
  • Dipropyleneglycol Salicylate particularly sold under the name ′′DIPSAL′′ by SCHER;
  • TEA Salicylate sold under the name ′′NEO HELIOPAN TS′′ by SYMRISE;
  • Ethylhexyl Methoxycinnamate particularly sold under the trade name ′′PARSOL MCX′′ by DSM Nutritional Products, Inc.;
  • Isoamyl Methoxy cinnamate particularly sold under the trade name ′′NEO HELIOPAN E 1000′′ by SYMRISE;
  • Etocrylene particularly sold under the trade name ′′UVINUL N35′′ by BASF;
  • Octoylcrylene for example sold under the trade name “UVINUL N 539” by BASF;
  • Methylbenzylidene camphor sold under the name ′′EUSOLEX 6300′′ by MERCK;
  • Ethylhexyl triazone particularly sold under the trade name ′′UVINUL T150′′ by BASF;
  • Polyorganosiloxanes with a benzalmalonate function such as Polysilicone-15 particularly sold under the trade name ′′PARSOL SLX′′ by DSM Nutritional Products, Inc.;
  • hydrophobic UV-B screening agents are used in the composition according to the invention:
  • composition of the present invention comprises at least one hydrophobic UV-screening agent, selected from the group consisting of Ethylhexyl Methoxycinnamate, n-hexyl 2- (4-diethylamino -2-hydroxybenzoyl) -benzoate, or a mixture thereof.
  • hydrophobic UV-screening agent selected from the group consisting of Ethylhexyl Methoxycinnamate, n-hexyl 2- (4-diethylamino -2-hydroxybenzoyl) -benzoate, or a mixture thereof.
  • Benzophenone-1 particularly sold under the trade name ′′UVINUL 400′′ by BASF;
  • Benzophenone-2 particularly sold under the trade name ′′UVINUL D50′′ by BASF;
  • Benzophenone-6 particularly sold under the trade name ′′Helisorb 11′′ by Norquay;
  • Benzophenone-8 particularly sold under the trade name ′′Spectra-Sorb UV-24′′ by American Cyanamid;
  • Drometrizole Trisiloxane particularly sold under the name ′′Silatrizole′′ by RHODIA CHIMIE or manufactured under the name ′′Meroxyl XL′′ by CHIMEX;
  • composition of the present invention may additionally comprise at least one hydrophobic UV-screening agent selected from the group consisting of Ethylhexyl Methoxycinnamate, n-hexyl 2- (4-diethylamino-2-hydroxybenzoyl) -benzoate, or a mixture thereof.
  • at least one hydrophobic UV-screening agent selected from the group consisting of Ethylhexyl Methoxycinnamate, n-hexyl 2- (4-diethylamino-2-hydroxybenzoyl) -benzoate, or a mixture thereof.
  • the organic hydrophobic UV-screening agent is present in the composition of the present invention in an amount ranging from 0.01%to 20%by weight, more preferably from 0.1%to 20%by weight, and even more preferably from 1%to 10%by weight, relative to the total weight of the composition.
  • the composition comprises at least one aqueous phase.
  • This aqueous phase can comprise alcohol (s) , in particular ethanol; polyehthylene glycols having from 6 to 80 ethylene oxide units; polyols, such as propylene glycol, isoprene glycol, butylene glycol, glycerol, maltitol, sorbitol, glycols, such as propylene glycol, butylene glycol, pentylene glycol, dipropylene glycol or diethylene glycol, glycol ethers, such as mono-, di-or tripropylene glycol or mono-, di-or triethylene glycol (C 1 -C 4 ) alkyl ether, and their mixtures.
  • alcohol (s) in particular ethanol
  • polyehthylene glycols having from 6 to 80 ethylene oxide units polyols, such as propylene glycol, isoprene glycol, butylene glycol, glycerol, maltitol, sorbitol, glycols, such as propy
  • the aqueous phase comprises water.
  • the water can be a floral water, such as cornflower water, and/or a mineral water, such as water from Vittel, water from Lucas or water from La Roche-Posay, and/or a thermal water.
  • the amount of water in the aqueous phase is higher than the total amount of occupants/polyols in the aqueous phase.
  • the amount of polyols in the composition may represent from 0.5%to 40%by weight, preferably from 1%to 30%by weight, and more preferably from 5%to 20%by weight relative to the total weight of the composition.
  • the aqueous phase can additionally comprise stabilizing agents, for example sodium chloride, magnesium dichloride, magnesium sulphate.
  • stabilizing agents for example sodium chloride, magnesium dichloride, magnesium sulphate.
  • the aqueous phase is present in the composition according to the invention in a content ranging from 40%to 85%, preferably ranging from 60%to 80%by weight, with respect to the total weight of the composition.
  • the composition may comprise at least one fatty phase.
  • the composition may comprise a weight ratio of aqueous phase/fatty phase ranging from 1 to 10.
  • a composition may comprise a weight ratio of aqueous phase/fatty phase ranging from 1 to 8.
  • a composition may comprise a weight ratio of aqueous phase/fatty phase ranging from 2 to 5.
  • the fatty phase is a silicone fatty phase.
  • the silicone phase comprises, as described above, (i) at least one non-emulsifying organopolysiloxane elastomer, (ii) at least one emulsifying organopolysiloxane elastomer, (iii) at least one C 8 -C 22 alkyl dimethicone copolyol, and (iv) at least one organic hydrophilic UV-screening agent.
  • the fatty phase can comprise at least one volatile oil, at least one non-volatile oil, or a mixture thereof.
  • the fatty phase may comprise from 1%to 60%by weight, preferably ranging from 3%to 35%by weight and preferentially ranging from 5%to 20%by weight of, if present, volatile oil (s) , with respect to the total weight of the composition.
  • volatile oils hydrocarbon oils, silicone oils, fluorinated oils and their mixture may be mentioned.
  • a volatile hydrocarbon based oil which can be used in the invention can be chosen from hydrocarbon oils having a flash point ranging from 40°C to 102°C, preferably ranging from 40°C to 55°C, and preferably ranging from 40°C to 50°C.
  • volatile hydrocarbon based oil of volatile hydrocarbon based oils having from 8 to 16 carbon atoms and their mixtures, in particular branched C 8 -C 16 alkanes, such as C 8 -C 16 isoalkanes (also known as isoparaffins) , isododecane, isodecane, isohexadecane and, for example, the oils sold under the Isopar or Permethyl commercial names, branched C 8 -C 16 esters, such as isohexyl neopentanoate, and their mixtures.
  • branched C 8 -C 16 alkanes such as C 8 -C 16 isoalkanes (also known as isoparaffins)
  • isododecane also known as isoparaffins
  • isohexadecane also known as isohexadecane
  • the oils sold under the Isopar or Permethyl commercial names branched C 8 -C 16 esters, such as iso
  • the volatile hydrocarbon based oil is chosen from volatile hydrocarbon based oils having from 8 to 16 carbon atoms and their mixtures, in particular from isododecane, isodecane or isohexadecane, and is in particular isododecane.
  • the volatile hydrocarbon-based oils may also be chosen from linear C8-C16 alkanes.
  • linear C8-C16 alkanes examples include n-nonadecane (C9) , n-decane (C10) , n-undecane (C11) , n-dodecane (C12) , n-tridecane (C13) , n-tetradecane (C14) , n-pentadecane (C15) and n-hexadecane (C16) , and mixtures thereof.
  • a volatile linear alkane that is suitable for use in the invention may be chosen from n-nonadecane, n-undecane, n-dodecane and n-tridecane, and mixtures thereof.
  • a volatile linear alkane may be used in the form of an n-undecane/n-tridecane mixture.
  • the volatile hydrocarbon based oil can be present in a content ranging from 0.1%to 30%by weight, with respect to the total weight of the composition, preferably ranging from 0.5%to 20%by weight and preferentially ranging from 0.5%to 10%by weight.
  • the composition comprises at least 0.5%by weight, with respect to the total weight of the composition, of volatile hydrocarbon based oil.
  • the volatile silicone oil which can be used in the invention can be chosen from silicon oils having a flash point ranging from 40°C to 102°C, preferably having a flash point of greater than 55°C and less than or equal to 95°C, and preferentially ranging from 65°C to 95°C.
  • silicone oil of linear or cyclic silicone oils especially those with a viscosity ⁇ 8 centistokes (8 x 10 -6 m 2 /s) and having from 2 to 7 silicon atoms, these silicones optionally comprising alkyl or alkoxy groups having from 1 to 10 carbon atoms.
  • volatile silicone oil of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, octamethyltrisiloxane, de
  • the volatile oil chosen from volatile silicone oils, volatile fluorinated oils and their mixtures can be present in a content ranging from 0.5%to 30%by weight, with respect to the total weight of the composition, preferably ranging from 0.5%to 20%by weight and preferentially ranging from 0.5%to 10%by weight, with respect to the total weight of the composition.
  • the fatty phase may comprise from 1%to 30%by weight, preferably ranging from 1%to 20%by weight and preferentially ranging from 5%to 10%by weight of, if present, non-volatile oil (s) , with respect to the total weight of the composition.
  • This non-volatile oil or one of its mixtures can be present in a content ranging from 0.5%to 50%by weight, with respect to the total weight of the composition, and preferably ranging from 3%to 30%by weight.
  • the non-volatile oil can be chosen from carbon-comprising, hydrocarbon-comprising and/or silicone oils of mineral, animal, vegetable or synthetic origin, and their mixtures, insofar as they are compatible with the use envisaged.
  • non-volatile hydrocarbon based oils Mention may be made of non-volatile hydrocarbon based oils.
  • the non-volatile hydrocarbon-based oil includes non-volatile hydrocarbon-based polar oils, non-volatile hydrocarbon-based fluror oils, and non-volatile hydrocarbon-based apolar oils.
  • non-volatile hydrocarbon-based polar oil may be chosen from the list of oils below, and mixtures thereof:
  • hydrocarbon-based plant oils such as Simmondsia Chinensis (jojoba) oil, triglycerides such as triglycerides of fatty acids containing from 6 to 22 carbon atoms, more preferably from 8 to 18 carbon atoms, caprylic/capric triglycerides, ricinus communis (castor) oil, cocos nucifera (coconut) oil, simmondsia chinensis seed oil, linum usitatissimum (linseed) oil, persea gratissima (avocado) oil, macadamia ternifolia seed oil, limnanthes alba (meadowfoam) seed oil, olea europaea (olive) fruit oil, canola oil, prunus amygdalus dulcis (sweet almond) oil, elaeis guneenaeis guineensis (palm) oil, punica granatum seed,
  • the carboxylic acid residue contains from 2 to 30 carbon atoms
  • the alcohol residue represents a hydrocarbon-based chain containing from 1 to 30 carbon atoms, such as stearyl heptanoate, isononyl isononanoate, isotridecyl isononanoate, diisostearyl malate, oleyl erucate or 2-octyldodecyl neopentanoate; isopropyl myristate; mentions may be made of stearyl heptanotate such as the product sold under the trade name Tegosoft SH by Goldschmidt.
  • the alcohols are branched; mentions maybe made of octyldodecanol such as the product with the trade name Eutanol sold by the company BASF;
  • C 12 -C 26 fatty acids such as oleic acid, linoleic acid and linolenic acid, and mixtures thereof;
  • non-volatile oils of high molecular mass for example from 650 to 10 000 g/mol, for instance:
  • ester oils such as:
  • esters and polyesters of a diol dimer and of a monocarboxylic or dicarboxylic acid such as esters of a diol dimer and of a fatty acid and esters of a diol dimer and of a dicarboxylic acid dimer; mention may be made especially of the esters of dilinoleic diacids and of dilinoleyl diol dimers sold by the company Nippon Fine Chemical under the trade names Lusplan and
  • esters of a diol dimer and of a monocarboxylic acid may be obtained from a monocarboxylic acid containing from 4 to 34 carbon atoms and especially from 10 to 32 carbon atoms, which acids are linear or branched, and saturated or unsaturated.
  • triglycerides that are suitable for use in the invention, mention may be made especially of triglycerides of fatty acids containing 6 to 22 carbon atoms.
  • triglycerides of fatty acids containing from 8 to 18 carbon atoms are used.
  • the composition according to the invention comprises at least one non-volatile hydrocarbon-based polar oil chosen from hydrocarbon-based plant oils, hydrocarbon-based mono-or di-esters the carboxylic acid residue contains from 2 to 30 carbon atoms, and the alcohol residue represents a hydrocarbon-based chain containing from 1 to 30 carbon atoms, or a mixture thereof.
  • non-volatile hydrocarbon-based polar oil chosen from hydrocarbon-based plant oils, hydrocarbon-based mono-or di-esters the carboxylic acid residue contains from 2 to 30 carbon atoms, and the alcohol residue represents a hydrocarbon-based chain containing from 1 to 30 carbon atoms, or a mixture thereof.
  • the non-volatile hydrocarbon-based oil may also be a fluoro oil.
  • fluoro oil means oil comprising at least one fluorine atom.
  • the term ′′perfluoro compounds′′ means compounds in which all the hydrogen atoms have been replaced with fluorine atoms.
  • the fluoro oil according to the invention is chosen from perfluoro oils.
  • perfluoro oils that may be used in the invention, mention may be made of perfluorodecalins and perfluoroperhydrophenanthrenes.
  • the fluoro oil is chosen from perfluoroperhydrophenanthrenes, and especially the products sold by the company Cruations Couies.
  • use may be made of the fluoro oil for which the INCI name is Perfluoroperhydrophenanthrene, sold under the reference Fiflow 220 by the company F2 Chemicals.
  • apolar oil means an oil whose solubility parameter at 25°C, ⁇ a, is equal to 0 (J/cm3) 1/2.
  • ⁇ a ( ⁇ p 2 + ⁇ h 2 ) 1/2.
  • hydrocarbon-based oil means an oil formed essentially from, or even constituted by, carbon and hydrogen atoms, and optionally oxygen and nitrogen atoms, and not containing any silicon or fluorine atoms.
  • non-volatile apolar hydrocarbon-based oil is apolar
  • the compound is then free of oxygen, nitrogen atom (s) .
  • the non-volatile apolar hydrocarbon-based oil may be chosen from linear or branched hydrocarbons of mineral or synthetic origin, such as:
  • Non-volatile silicone oil of polydimethylsiloxanes (PDMSs) , which are optionally phenylated, such as phenyl trimethicones, or optionally substituted by aliphatic and/or aromatic groups or by functional groups, such as hydroxyl, thiol and/or amine groups; polysiloxanes modified with fatty acids, fatty alcohols or polyoxyalkylenes, and their mixtures.
  • PDMSs polydimethylsiloxanes
  • composition according to the invention can additionally comprise a thickening agent for the fatty phase.
  • the thickening agent can be chosen from:
  • organomodified clays which are clays treated with compounds chosen in particular from quaternary amines or tertiary amines. Mention may be made, as organomodified clays, of organomodified bentonites, such as those sold under the name ′′Bentone 34′′ by Rheox, or organomodified hectorites, such as those sold under the name ′′Bentone 27′′ or ′′Bentone 38′′ by Rheox.
  • Such silicas are sold, for example, under the references ′′Aerosil ′′ by Degussa and ′′Cab-O-Sil ′′ by Cabot and under the references ′′Aerosil ′′ and ′′Aerosil ′′ by Degussa and ′′Cab-O-Sil ′′ and ′′Cab-O-Sil ′′ by Cabot.
  • the thickening agent for the fatty phase can be present in a content ranging from 0.1%to 5%by weight, with respect to the fatty phase, and better still from 0.2%to 3%by weight.
  • compositions of the invention comprise a thickening agent into the fatty phase, in particular a hydrophobic pyrogenic silica, preferentially the silica sold under the name Aerosil by Degussa, which is a silica dimethyl silylate.
  • a thickening agent into the fatty phase in particular a hydrophobic pyrogenic silica, preferentially the silica sold under the name Aerosil by Degussa, which is a silica dimethyl silylate.
  • Aerosil silicon dioxide made from vaporized silicon tetrachloride oxidized in high-temperature flame with hydrogen and oxygen, treated by hvdrophobation (Aerosil ) , delivers several high important benefit to the formula and process.
  • the at least one fatty phase can represent from 1%to 10%by weight, preferably from 1%to 5%by weight, with respect to the total weight of the composition.
  • compositions of the invention can comprise one or more of the adjuvants usual in the cosmetic and dermatological fields: hydrophilic or lipophilic gelling and/or thickening agents; fillers; moisturising agents; emollients; hydrophilic or lipophilic active principles; agents for combating free radicals; sequestering agents; antioxidants; preservatives; basifying or acidifying agents; fragrances; film-forming agents; colouring materials; and their mixtures.
  • the amounts of these various adjuvants are those conventionally used in foundations.
  • composition according to the invention is generally in form of water-in-silicone emulsion.
  • composition of the present invention has a hydrophobic phase in form of droplets.
  • the composition of the present invention is a gel.
  • the aqueous phase is translucent or transparent.
  • composition of the present invention has the appearance of a gel, particularly a translucent gel.
  • the composition contains an aqueous gel.
  • aqueous gel means a composition containing a continuous aqueous phase containing a viscoelastic mass formed from colloidal suspensions.
  • the viscosity of a gel according to the invention is measured at 25°C. using a ProRheo R180 machine (rotor 2) from the company Prorheo, and its value is generally at least 20 DU (Deviation Units) with the rotor 2.
  • the gels in accordance with the present invention comprise an aqueous phase generally in a proportion of greater than or equal to 70%by weight, preferably greater than or equal to 80%by weight and more particularly greater than or equal to 90%by weight relative to the total weight of the gel.
  • translucent means which allows light to pass through without making it possible to distinguish alphanumeric characters using 5 mm thick samples.
  • transparent means which allows light to pass through, and makes it possible to distinguish alphanumeric characters using 5 mm thick samples.
  • composition of the present invention can be generally prepared according to the general knowledge of a person skilled in the art. Nevertheless, it is to be understood that a person skilled in the art can choose its method of preparation, on the basis of his/her general knowledge, taking into account the nature of the constituents used, for example, their solubility in the vehicle, and the application envisaged for the composition.
  • composition of the present invention can be used for a non-theraputic process, such as a cosmetic process or method, for making up/caring for a keratin material, in particular for protecting the skin from UV radiation, such as the skin, by being applied to the skin.
  • a non-theraputic process such as a cosmetic process or method
  • UV radiation such as the skin
  • the method according to the present invention can improve skin sensory, in particularly freshness, without deteriorating other beneficial effects like UV-screening ability.
  • the method according to the present invention can provide water release effect, without deteriorating other beneficial effects like UV-screening ability.
  • Comparative formula A1 contains no C 8 -C 22 alkyl dimethicone copolyol of the present invention
  • Comparative formula A2 contains no emulsifying organopolysiloxane elastomer of the present invention
  • Comparative formula A3 contains no organic hydrophilic UV-screening agent of the present invention.
  • Phenylbenzimidazole sulfonic acid and/or terephthalylidene dicamphor sulfonic acid when existing, were neutralized by triethanolamine and tromethamine to a pH value of 7.0 in water at 25°C. They were then added to the phase Q at 25°C, and mixed until homogeneous. Then phase Q was added into phase L slowly. The mixture was stirred until homogeneous at 25°C.
  • the invention and comparative formulas were kept under 4°C, 37°C, and 45°C for 2 months. They were also kept in oven for 7 days under temperature change from -20°C to 20°C every 6 hours, continuously.
  • the evaluation was performed as follows.
  • Step 1 Pick up same quantity (around 0.1g) of the invention and comparative formulas, respecitvely, then using the pad of the middle finger and apply same on inner forearm.
  • Step 2 Spread the invention and comparative formulas, respecitvely simultaneously in order to have a good distribution of same over same area.
  • Step 3 Feel cooling/freshness to evaluation fresh sensory.
  • Step 4 Observe waterbeads releasing effect (waterbeads size, beads releasing evenness, beads distribution in proper area) . If it has been observed a significant difference between an area of the skin treated with this formula compared with an untreated area, we can say that the treated skin was better moisturized than the untreated skin.
  • SPF sun protection factor
  • Hydrophilic UV filters can provide good UV protection while their sensory is light and not oily. Compared to hydrophobic UV filters, which increase the oiliness of formula when added, hydrophilic UV filters have no impact on the skin sensory.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Chemical & Material Sciences (AREA)
  • Dermatology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Dispersion Chemistry (AREA)
  • Cosmetics (AREA)

Abstract

L'invention concerne une composition comprenant au moins une phase aqueuse et (i) au moins un élastomère d'organopolysiloxane non émulsifiant, (ii) au moins un élastomère d'organopolysiloxane émulsifiant, (iii) au moins un alkyl en C8-C12diméthicone copolyol et (iv) au moins un agent organique hydrophile de protection contre les UV. La composition permet d'obtenir un bon équilibre entre la stabilité dans le temps de la composition en soi et la sensation d'eau/fraîcheur après application sur la peau, ainsi qu'une capacité de protection contre les UV favorable.
PCT/CN2016/000705 2016-12-23 2016-12-23 Composition et procédé WO2018112679A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023009269A1 (fr) * 2021-07-28 2023-02-02 L'oreal Émulsion d'écran solaire comprenant un mélange d'émulsifiants de silicone
FR3126304A1 (fr) * 2021-08-26 2023-03-03 L'oreal émulsion écran solaire comprenant un mélange d’émulsifiants de silicone

Citations (1)

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Publication number Priority date Publication date Assignee Title
WO2008018046A2 (fr) * 2006-08-11 2008-02-14 The Procter & Gamble Company composition de soins personnels

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US8133508B2 (en) * 2005-10-03 2012-03-13 L'oreal Fluorescent cosmetic composition
AU2015203607A1 (en) * 2010-07-08 2015-07-23 Johnson & Johnson Consumer Companies, Inc. Skin care emulsion composition
BR112013000508A8 (pt) * 2010-07-08 2017-12-05 Johnson & Johnson Consumer Companies Inc Composição de emulsão para tratamento de pele
BR112013022152B1 (pt) * 2011-04-29 2021-04-13 L'oreal Composição cosmética para cuidados e/ou maquiagem fluida na forma de uma emulsão água em silicone e método cosmético para maquiagem da pele

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Publication number Priority date Publication date Assignee Title
WO2008018046A2 (fr) * 2006-08-11 2008-02-14 The Procter & Gamble Company composition de soins personnels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023009269A1 (fr) * 2021-07-28 2023-02-02 L'oreal Émulsion d'écran solaire comprenant un mélange d'émulsifiants de silicone
FR3126304A1 (fr) * 2021-08-26 2023-03-03 L'oreal émulsion écran solaire comprenant un mélange d’émulsifiants de silicone

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