WO2022046233A1 - Compositions comprenant un copolymère séquencé styrénique, une huile non polaire et une huile polaire - Google Patents

Compositions comprenant un copolymère séquencé styrénique, une huile non polaire et une huile polaire Download PDF

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Publication number
WO2022046233A1
WO2022046233A1 PCT/US2021/035455 US2021035455W WO2022046233A1 WO 2022046233 A1 WO2022046233 A1 WO 2022046233A1 US 2021035455 W US2021035455 W US 2021035455W WO 2022046233 A1 WO2022046233 A1 WO 2022046233A1
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Prior art keywords
weight
composition
polar oil
less
molecular weight
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PCT/US2021/035455
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English (en)
Inventor
Andrea Erin SCHOTT
Daniella Cristina Gonzalez-Toro
Chunhua Li
Hy Si Bui
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L'oreal
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Priority claimed from US17/007,654 external-priority patent/US20220064422A1/en
Priority claimed from FR2010270A external-priority patent/FR3114972A1/fr
Application filed by L'oreal filed Critical L'oreal
Publication of WO2022046233A1 publication Critical patent/WO2022046233A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8105—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • A61K8/8111—Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; Compositions of derivatives of such polymers
    • 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
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8105—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • A61K8/8117—Homopolymers or copolymers of aromatic olefines, e.g. polystyrene; Compositions of derivatives of such polymers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
    • A61Q1/06—Lipsticks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/24—Thermal properties

Definitions

  • the present invention relates to compositions including thermoplastic block copolymers and, in particular, compositions including thermoplastic block copolymers, non-polar oils and polar oils.
  • lip stick and lip gloss compositions are typically formulated to possess color, shine or gloss characteristics upon application. Lip gloss compositions in particular are sought after to provide high gloss and shine.
  • conventional lip gloss compositions generally don’t provide a perception of volume, which is a desirable consumer attribute.
  • Approaches to build volume include using irritants such as capsaicin and vasodilators such as niacin. Such ingredients are not easy to formulate and generally do not always provide the most satisfying solution to the consumer.
  • the inventors have also recognized that conventional products do not simultaneously provide the ability to build a thick layer on the lips, long-lasting durability, and self-leveling films that provide high gloss and hide lip lines.
  • the present invention relates to compositions for application to lips.
  • the compositions include at least about 8% by weight of a thermoplastic block copolymer comprising styrenated blocks.
  • the compositions further comprise at least one non-polar oil and at least one polar oil having a molecular weight of less than 650 g/mol.
  • the at least one nonpolar oil and the at least one polar oil that has a molecular weight of less than 650 g/mol are present such that the ratio of the concentrations by weight of the at least one non-polar oil to the concentration by weight of the at least one polar oil having a molecular weight of less than 650 g/mol is at least about 1 :1.
  • compositions have a Zero Shear Viscosity at 32°C that is in a range of 15 Pa s to 90 Pa s; a Shear-Thinning Ratio less than 5 at any temperature between 25°C and 37°C, and a High Shear Insult Viscosity Recovery of less than 30 seconds.
  • these compositions have a concentration by weight of the thermoplastic block copolymer comprising styrenated blocks is from about 8% to about 15%, a concentration by weight of the at least one non-polar oil is from about 20% to about 75%, and a concentration by weight of the at least one polar oil having a molecular weight of less than 650 g/mol that is from about 1% to about 50%.
  • the concentration by weight of the thermoplastic block copolymer comprising styrenated blocks is from about 8% to about 15%
  • the concentration by weight of the at least one non-polar oil, such as a polyolefin is from about 30% to about 65%
  • the concentration by weight of the at least one polar oil, such as a fatty ester, having a molecular weight of less than 650 g/mol is from about 2% to about 30%
  • the ratio of the concentration by weight of the at least one non-polar oil to the concentration by weight of the at least one polar oil having a molecular weight of less than 650 g/mol is from about 1 :1 to about 14:1 (such as from about 3:1 to about 14:1 ); and the composition further comprises from about 5% to about 30% of additional fatty compounds.
  • the present invention also relates to methods of enhancing the appearance of lips by applying compositions of the present invention to lips in an amount sufficient to enhance the appearance of lips.
  • the expression “at least one” means one or more and thus includes individual components as well as mixtures/combinations.
  • “Actives basis” as used herein means considering only the particular component of ingredient (e.g., in a composition) and ignoring other chemically unrelated components that may be also be present in the same raw material source of that particular component.
  • Polymer as used herein means a compound which is made up of at least two monomers.
  • substantially free means that while it is preferred that no amount of the specific component be present in the composition, it is possible to have very small amounts of it in the compositions of the invention provided that these amounts do not materially affect at least one, preferably most, of the advantageous properties of the conditioning compositions of the invention.
  • substantially free means less than about 2% of the identified ingredient, such as less than about 1%, such as less than about 0.5%, such as less than about 0.1% of the ingredient.
  • compositions of the present invention are anhydrous, meaning substantially free of water.
  • “Substituted” as used herein, means comprising at least one substituent.
  • substituents include atoms, such as oxygen atoms and nitrogen atoms, as well as functional groups, such as hydroxyl groups, ether groups, alkoxy groups, acyloxyalky groups, oxyalkylene groups, polyoxyalkylene groups, carboxylic acid groups, amine groups, acylamino groups, amide groups, halogen containing groups, ester groups, thiol groups, sulphonate groups, thiosulphate groups, siloxane groups, hydroxyalkyl groups, and polysiloxane groups.
  • the substituent(s) may be further substituted.
  • Volatile as used herein, means having a flash point of less than about 50°C.
  • compositions and methods of the present invention can comprise, consist of, or consist essentially of the essential elements and limitations of the invention described herein, as well as any additional or optional ingredients, components, or limitations described herein or otherwise useful in personal care products, especially lip products.
  • the block copolymers of the present invention are characterized by the presence of at least one "hard” segment, and at least one "soft” segment.
  • the hard and soft segments of the block copolymers of the present invention may be defined in terms of their respective glass transition temperatures, T g .
  • the hard segment may have a T g of 50°C. or more, whereas the soft segment may have a T g of 20°C. or less.
  • the T g for the hard block can range from 50°C to 150°C.
  • the T g for the soft block can range from can range from -150°C to 20°C.
  • Block copolymers useful in compositions of the present invention may be thermoplastic elastomers.
  • the hard segments of the thermoplastic elastomer typically comprise vinyl monomers in varying amounts.
  • suitable vinyl monomers include, but are not limited to, styrene as well as other optional monomers including methacrylate, acrylate, vinyl ester, vinyl ether, vinyl acetate, and the like.
  • the soft segments of the thermoplastic elastomer comprise olefin polymers and/or copolymers which may be saturated, unsaturated, or combinations thereof.
  • Suitable olefin copolymers may include, but are not limited to, ethylene/propylene copolymers, ethylene/butylene copolymers, propylene/butylene copolymers, polybutylene, polyisoprene, polymers of hydrogenated butanes and isoprenes, and mixtures thereof.
  • Thermoplastic elastomers useful in the present invention are block copolymers e.g., di-block, tri-block, multi-block, radial and star block copolymers, and mixtures and blends thereof.
  • a di-block thermoplastic elastomer is usually defined as an A-B type or a hard segment (A) followed by a soft segment (B) in sequence.
  • a tri-block is usually defined as an A-B-A type copolymer or a ratio of one hard, one soft, and one hard segment.
  • Multi-block or radial block or star block thermoplastic elastomers usually contain any combination of hard and soft segments, provided that the elastomers possess both hard and soft characteristics.
  • the thermoplastic elastomer of the present invention may be chosen from the class of KRATON rubbers (Kraton Corporation of Houston, Texas) or from similar thermoplastic elastomers.
  • KRATON rubbers are thermoplastic elastomers in which the polymer chains comprise a di-block, tri-block, multi-block or radial or star block configuration or numerous mixtures thereof.
  • the KRATON tri-block rubbers have polystyrene (hard) segments on each end of a rubber (soft) segment, while the KRATON di-block rubbers have a polystyrene (hard) segment attached to a rubber (soft) segment.
  • the KRATON radial or star configuration may be a four- point or other multipoint star made of rubber with a polystyrene segment attached to each end of a rubber segment.
  • the configuration of each of the KRATON rubbers forms separate polystyrene and rubber domains.
  • Each molecule of KRATON rubber is said to comprise block segments of styrene monomer units and rubber monomer and/or comonomer units.
  • the most common structure for the KRATON triblock copolymer is the linear A-B-A block type styrene-butadiene-styrene, styrene- isoprene-styrene, styrene-ethylenepropylene-styrene, or styrene- ethylenebutylene-styrene.
  • the KRATON di-block is preferably the AB block type such as styrene-ethylenepropylene, styrene-ethylenebutylene, styrenebutadiene, or styrene-isoprene.
  • the KRATON rubber configuration is well known in the art and any block copolymer elastomer with a similar configuration is within the practice of the invention.
  • Other block copolymers are sold under the tradename Septon (which represent elastomers known as SEEPS, sold by Kurary, Co., Ltd) and those sold by ExxonMobil Chemical under the tradename VECTOR.
  • thermoplastic elastomers useful in the present invention include those block copolymer elastomers comprising a styrene- butylene/ethylene-styrene copolymer (tri-block), an ethylene/propylene- styrene copolymer (radial or star block) or a mixture or blend of the two.
  • block copolymers as hydrogenated block copolymers, e.g. hydrogenated styrene-butylene/ethylene-styrene copolymer (tri-block)).
  • Compositions of the present invention include at least one block copolymer, e.g, diblock, triblock, multiblock or radial block copolymers, and mixtures thereof.
  • the at least one block copolymer comprises at least one styrene block and may further comprise at least one block comprising units chosen from butadiene, ethylene, propylene, butylene and isoprene or a mixture thereof.
  • Diblock copolymers that may be mentioned include but are not limited to styrene/ethylene-propylene copolymers (comprising a styrene block and a block obtained from ethylene and propylene), styrene/ethylene- butylene copolymers, styrene-ethylene/butadiene copolymers, styrene/butadiene copolymers and styrene/isoprene copolymers.
  • styrene/ethylene-propylene copolymers comprising a styrene block and a block obtained from ethylene and propylene
  • styrene/ethylene-butylene copolymers comprising a styrene block and a block obtained from ethylene and propylene
  • styrene/ethylene-butylene copolymers comprising a styrene block and a block obtained from ethylene and propylene
  • the block copolymer includes styrene blocks and one or more blocks selected from: butadiene blocks, isoprene blocks, and ethylene-butylene blocks.
  • the block copolymer includes (1) styrene blocks and butadiene blocks; or (2) styrene and ethylene-butadiene blocks; or (3) styrene and isoprene blocks.
  • Triblock copolymers that may be mentioned include but are not limited to styrene/ethylene-propylene/styrene copolymers, styrene/ethylene-butylene/styrene copolymers, styrene/ethylene- butadiene/styrene copolymers, styrene/isoprene/styrene copolymers and styrene/butadiene/styrene copolymers.
  • triblock polymers sold under the names KRATON G1650, KRATON G1652, KRATON D1101 , KRATON D1102 and KRATON, commercially available from the company Kraton Polymers.
  • a mixture of a diblock copolymer and of a triblock copolymer may be used as block copolymer.
  • the diblock copolymer and the triblock copolymer may be chosen from block copolymers comprising at least one styrene block and at least one block comprising units chosen from butadiene, ethylene, propylene, butylene and isoprene.
  • the block copolymer has from about 50% to about 90% triblock and from about 10% to about 50% diblock.
  • Suitable block copolymers include Kraton G series such as Kraton G1701 (INCI name of Hydrogenated Styrene/lsoprene Copolymer) and KRATON G1657 (HYDROGENATED STYRENE/BUTADIENE COPOLYMER). KRATON G1657 (styrene- ethylene/butylene-styrene triblock and 30% styrene-ethylene-butylene diblock); INCI: HYDROGENATED STYRENE/BUTADIENE COPOLYMER; a mixture of 70% styrene-ethylene-butylene triblock) is particularly notable.
  • Kraton G series such as Kraton G1701 (INCI name of Hydrogenated Styrene/lsoprene Copolymer)
  • KRATON G1657 HYDROGENATED STYRENE/BUTADIENE COPOLYMER
  • KRATON G1657 styrene- ethylene/butylene-
  • the styrene content of the block copolymer be less than 30% by weight, preferably less than 25% by weight, and more preferably less than 20% by weight, and more preferably from about 5% to about 15%, based on the weight of the block copolymer. This is because of the tendency of block copolymers having a styrene content of greater than 30% by weight to harden/gel in conventional carrier systems.
  • thermoplastic block copolymer comprising styrenated blocks may desirably be present in the cosmetic composition in an amount ranging from, for example, about 5%, 6%, 8%, 10% or 12% to about 12%, 14%, 15%, 18%, 20% or 25% by weight.
  • the thermoplastic block copolymer comprising styrenated blocks is present in a concentration of at least about 8%, such as from about 8% to about 15%, such as from about 10% to about 15%.
  • thermoplastic block copolymer comprising styrenated blocks may represent from about 10%, 15%, or 20% by weight to about 20%, 40%, 60%, 80%, 90% or 100% by weight of all polymers in the composition.
  • compositions of the present invention include non-polar oils and polar oils.
  • oils it is meant compounds suitable for cosmetic use and having a melting point of less than about 30°C and generally insoluble in water and includes a hydrophobic moiety, such as one meeting one or more of the following three criteria: (a) has a carbon chain of at least six carbons in which none of the six carbons is a carbonyl carbon or has a hydrophilic moiety (defined below) bonded directly to it; (b) has two or more alkyl siloxy groups; or (c) has two or more oxypropylene groups in sequence.
  • the hydrophobic moiety may include linear, cyclic, aromatic, saturated or unsaturated groups.
  • the oil may include fatty acids or fatty alcohols
  • the oil is in certain embodiments not amphiphilic and, as such, in this embodiment does not include hydrophilic moieties, such as anionic, cationic, zwitterionic, or nonionic groups, that are polar, including sulfate, sulfonate, carboxylate, phosphate, phosphonate, ammonium, including mono-, di-, and trialkylammonium species, pyridinium, imidazolinium, amidinium, poly(ethyleneiminium), ammonioalkylsulfonate, ammonioalkylcarboxylate, amphoacetate, and poly(ethyleneoxy)sulfonyl moieties.
  • the oil does not include hydroxyl moieties.
  • the cosmetic oil is a solvent for the thermoplastic block copolymer and therefore is capable of dissolving at least portions of the thermoplastic block copolymer when mixed in proportions described herein.
  • compositions of the present invention include at least one non-polar oil.
  • nonpolar oil functions to solvate the flexible “rubber” mid-blocks of the thermoplastic block copolymer.
  • non-polar oil it is meant a hydrocarbon oil.
  • hydrocarbon it is meant an oil whose molecules contain only hydrogen and carbon (devoid of heteroatoms) and may be linear or branched.
  • the non-polar oil has a partition coefficient (log P) value of greater than 15, such as greater than about 20.
  • the non-polar oil is selected from an alkane, an olefin (alkene) such as a polyolefin, and combinations thereof.
  • Suitable alkanes include, for example, C10-C20 alkanes, such as C12-C16 alkanes such as isoheaxadecane or isododecane; or isoparaffins.
  • the non-polar oil is an olefin such as a polyolefin.
  • Suitable polyolefins include oligomeric or polymeric compounds such as squalene, hydrogenated polyisobutene, hydrogenated polydecene, hydrogenated poly(6-14) olefin, and polybutene.
  • the non-polar oil is present in a concentration by weight from about 15%, 20%, 25%, 30%, 35%, 40% or 45% to about 60%, 65%, 75% or 80% by weight.
  • compositions of the present invention include at least one polar oil.
  • the polar oil functions to solvate both the soft “rubber” mid-blocks of the thermoplastic block copolymer as well as the hard styrenated blocks, thereby reducing viscosity.
  • polar oil an oil comprising a polar functional group such as an ester group. Further, the inventors have found that the polar oil should have a molecular weight of less than about 650 g/mol, such as less than about 500 g/mol, such as from about 150g/mol to about 650 g/mol, such as from about 150g/mol to about 500 g/mol. Accordingly, another term used for these compounds is in this specification is “mid-molecular weight polar oils.” In certain embodiments, the polar oil has a partition coefficient (log P) value of less than or equal to about 20 such as less than about 17, such as less than about 15. Without wishing to be bound by theory, it is believed that the moderate molecular weights allow better solvation of the styrenated and rubber blocks, enabling reduction of viscosity.
  • partition coefficient (log P) value partition coefficient
  • the at least one polar oil may be selected from a fatty ester.
  • Suitable fatty esters include vegetable oils (glyceryl esters of fatty acids, monoglycerides, diglycerides, triglycerides) and synthetic esters.
  • the polar oil may be present in the composition in a concentration from about 1% 2% 3% 5% or 10% to about 15% 25% 30% or 50% by weight.
  • the at least one non-polar oil and the at least one polar oil having a molecular weight of less than 650 g/mol should be present in concentrations by weight such that a ratio of the concentration by weight of the at least one non-polar oil to the concentration by weight of the at least one polar oil having a molecular weight of less than 650 g/mol is at least about 1 :1 .
  • this ratio is from about 1 :1 , 2:1 . 3:1 , 4:1 or 5:1 to about 6:1 , 7:1 , 8:1 , 9:1 , 10:1 , 11 :1 , 12:1 , 13:1 or 14:1 .
  • this ratio is from about 1 :1 to about 14:1 .
  • this ratio is from about 3:1 to about 14:1.
  • the composition may include additional fatty compounds.
  • additional fatty compounds include additional polar oils, such as those having molecular weights greater than 650 g/mol (“high molecular weight polar oil”) such any of various vegetable oils and vegetable-derived fatty compounds such as, for example, coconut oil, jojoba oil, grapeseed oil, and certain liquid esters such as Pentaerithrityl Tetraisostearate, and the like.
  • Suitable additional fatty compounds include fatty compounds that are not liquid at ambient temperatures and pressures, such as solid fatty compounds including waxes.
  • solid fatty compounds it is meant lipophilic fatty compounds that are solid at room temperature (about 25°C.) and atmospheric pressure (760 mm Hg, i.e., 105 Pa).
  • waxes it is meant solid fatty compounds which undergo a reversible solid/liquid change of state and which has a melting point of greater than 30°C., and in some embodiments, greater than about 55° C. up to about 120° C. or even as high as about 200° C.
  • waxes include waxes of animal origin, waxes of plant origin, waxes of mineral origin and waxes of synthetic origin.
  • waxes of animal origin examples include beeswaxes, lanolin waxes and Chinese insect waxes.
  • waxes of plant origin include rice waxes, carnauba wax, candelilla wax, ouricurry wax, cork fiber waxes, sugar cane waxes, Japan waxes, sumach wax and cotton wax.
  • waxes of mineral origin examples include paraffins, microcrystalline waxes, montan waxes and ozokerites.
  • waxes of synthetic origin examples include polyolefin waxes, e.g., polyethylene waxes (linear, low molecular weight polyethylene waxes), waxes obtained by Fischer-Tropsch synthesis, waxy copolymers and their esters, and silicone and fluoro waxes.
  • solid fatty compounds include such esters as, for example, Butyrosperum parkii (shea) butter (logP -21 -29) other cosmetic vegetable/nut butters; BlS-diglyceryl adipate-2, and the like.
  • the additional fatty compounds have a molecular weight greater than 650 g/mol, such as from about 800 g/mol to about 2000 g/mol.
  • the composition may include other cosmetic ingredients such as additional polymers, particulates colorants, fragrances, preservatives and/or silicones.
  • additional polymers such as additional polymers, particulates colorants, fragrances, preservatives and/or silicones.
  • the total concentration by weight of the additional ingredients may range from about 0%, 0.1%, 1%, 2%, 3%, or 4% to about 8%, 10%, 15%, 25%, or 30%, 50%.
  • Suitable additional polymers include certain polymers that may not qualify as oils.
  • the additional polymers include low K resins, such as low molecular weight hydrocarbon resins.
  • suitable low molecular weight resins include hydrocarbonbased resins chosen from olefinic polymers, which may be classified, according to the type of monomer they comprise, as indene polymers, pentadiene resins, cyclopentadiene dimer resins and terpenic resins.
  • the indene polymers may be chosen from polymers derived from the polymerization in major proportion of indene monomer and in minor proportion of monomers chosen from styrene, methylindene and methylstyrene, and mixtures thereof. These polymers may optionally be hydrogenated, and may have a molecular weight ranging from 200 to 1 ,500 g/mol.
  • the indene hydrocarbon-based polymer is a block copolymer obtained from indene and from styrene or a styrene derivative.
  • the resin is chosen from indene resins, such as the hydrogenated styrene/methylstyrene/indene copolymers sold under the name “Regalite” by the company Eastman Chemical, such as REGALITE R 1100, REGALITE R 1090, REGALITE R-7100, REGALITE R 1010 HYDROCARBON RESIN and REGALITE R 1125 HYDROCARBON RESIN, as well as those sold under the references Escorez 7105 by Exxon Chem., Nevchem 100 and Nevex 100 by Neville Chem., Norsolene S105 by Sartomer, Picco 6100 by Hercules and Resinall by Resinall Corp.
  • the one or more hydrocarbon resins are present in a total amount of between about 0.5%, 1%, 2% or 3% to about 3%, 5%, or 10%.
  • the compositions of the present invention include less than about 10% of such low molecular weight hydrocarbon resins, such as substantially free of such low molecular weight hydrocarbon resins.
  • the ratio of concentrations by weight in the composition of the thermoplastic block copolymer to the low molecular weight hydrocarbon resin is not less than 2:1 , such as not less than 3:1 , such as not less than 4:1 , such as not less than 5:1 .
  • additional ingredients may include at least one colorant (coloring agent).
  • the at least one coloring agent is preferably chosen from pigments, dyes, such as liposoluble dyes, nacreous pigments, and pearling agents.
  • Representative liposoluble dyes which may be used according to the present invention include Sudan Red, DC Red 17, DC Green 6, B-carotene, soybean oil, Sudan Brown, DC Yellow 11 , DC Violet 2, DC Orange 5, annatto, and quinoline yellow.
  • nacreous pigments which may be used according to the present invention may be chosen from white nacreous pigments such as mica coated with titanium or with bismuth oxychloride, colored nacreous pigments such as titanium mica with iron oxides, titanium mica with ferric blue or chromium oxide, titanium mica with an organic pigment chosen from those mentioned above, and nacreous pigments based on bismuth oxychloride.
  • the pigments which may be used according to the present invention, may be chosen from white, colored, inorganic, organic, polymeric, nonpolymeric, coated and uncoated pigments.
  • Representative examples of mineral pigments include titanium dioxide, optionally surface-treated, zirconium oxide, zinc oxide, cerium oxide, iron oxides, chromium oxides, manganese violet, ultramarine blue, chromium hydrate, and ferric blue.
  • Representative examples of organic pigments include carbon black, pigments of D & C type, and lakes based on cochineal carmine, barium, strontium, calcium, and aluminum.
  • the colorant is present in an amount sufficient for an observer to identify the composition as having a “red” color, e.g. red, reddish-brown, pink, or the like.
  • the amount of coloring agent present in the composition is less than 20%, such as less than 10%, preferably 5% or less by weight of the total weight of the composition. In certain embodiments, the compositions are substantially free of coloring agents.
  • compositions may include particulates such as inorganic particulates.
  • “Inorganic particulate” means any finely divided material that is predominantly inorganic (including inorganic particulates having an organic or silicon-based coating), including titanium dioxide, talc, mica, silica, silica silylates, perlite, kaolin, hectorite, as well as bismuth oxychloride, zinc oxide, among others.
  • the inorganic pigment may be coated or uncoated.
  • the amount of particulate present in the composition is less than 20%, such as less than 10%, preferably 5% or less by weight of the total weight of the composition, including all ranges and subranges therebetween such as, for example, 1 % to 10%.
  • compositions of the present invention are substantially free of silicone oils or other silicones, which tend not to be compatible with the ingredients used in compositions of the present invention.
  • Silicone oils include, for example, dimethicone, cyclopentasiloxane and volatile silicones such as linear or cyclic silicone oils having a viscosity at room temperature less than or equal to 6cSt and having from 2 to 7 silicon atoms; these silicones being optionally substituted with alkyl or alkoxy groups of 1 to 10 carbon atoms.
  • Examples include octamethyltetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane and their mixtures.
  • compositions of the present invention may be substantially free of silicone polymers, silicone gums and resins, such as those that are solid at room temperature and comprising Si-O-Si repeat units and various hydrocarbon or other organic functional groups.
  • Silicone resins or siloxysilicate resins include those of the general formula [(R)3SiO] x (SiC>4/2)y where R is an alkyl group preferably comprising 1 to 8 carbon atoms.
  • R is an alkyl group preferably comprising 1 to 8 carbon atoms.
  • One non-limiting example of a siloxysilicate is trimethylsiloxysilicate, which may be represented by the following formula:
  • x and y preferably range between numbers such as, 10 and 150, 25 and 125, 35 and 100, and 50 to 80, for example.
  • Silicone gums can, for example, correspond to the formula: [0074] in which:
  • R?, Rs, R11 and R12 are identical or different, and each is chosen from alkyl radicals comprising from 1 to 6 carbon atoms,
  • R9 and R10 are identical or different, and each is chosen from alkyl radicals comprising from 1 to 6 carbon atoms and aryl radicals,
  • X is chosen from alkyl radicals comprising from 1 to 6 carbon atoms, a hydroxyl radical and a vinyl radical,
  • n and p are preferably chosen so as to give the silicone gum a viscosity of from 25,000 cSt to 20,000,000 cSt,
  • compositions With respect to desirable attributes of the composition, the inventors have found it highly desirable for the compositions to have a particular blend of properties not taught in the prior art. These properties: zero shear viscosity, Shear Thinning Ratio, and High Shear Insult Viscosity are described below.
  • compositions of the present invention have a Zero Shear Viscosity at 32°C that is at least about 15 Pa s, such as from about 15 Pa s to about 90 Pa s, such as from about 15 Pa s to about 80 Pa s, such as from about 15 Pa s to about 60 Pa s.
  • ZSV zero shear viscosity
  • compositions of the present invention have a Shear Thinning Ratio that is less than 5 at any temperature between 25°C and 37°C.
  • Shear Thinning Ratio (STR) is determined using the same experiment as described above for ZSV. Temperature is equilibrated to the desired test temperature between 25°C and 37°C. The viscosity recorded at 0.01 s' 1 is divided by the viscosity at 100 S' 1 to obtain STR.
  • compositions of the present invention have a to have a High Shear Insult Viscosity Recovery (HSIVR) that is less than 30 seconds.
  • HSAVR High Shear Insult Viscosity Recovery
  • the samples is placed in the rheometer as above equilibrated at 32°C for 30 seconds and sheared for 10 seconds at 800 s -1 . This high shear insult may breakdown the blocky polymer domain structure that was present in the sample.
  • a “recovery” test is performed by measuring viscosity at a constant shear rate of 0.01 /s and a temperature of 32°C for 300 seconds. The time for the sample to recover 60% of its Zero Shear Viscosity is recorded. If the time is more than 300 seconds, it is simply recorded as >300 seconds.
  • compositions of the present invention can be applied to the human body.
  • the compositions can be applied to the lips in order to give the appearance of increased lip volume and/or to provide treating, caring or conditioning of the lips.
  • the composition may be spread across the lips of the user. The spreading process generally reduces the composition to a thin layer that adheres to and coats the lips. This may be accomplished with the assistance of a device or applicator.
  • the user may spread the composition across the upper and lower lips covering most or preferably all of the upper and lower lips of the user.
  • the present invention also relates to methods of enhancing the appearance of lips by applying compositions of the present invention to lips in an amount sufficient to enhance the appearance of lips.
  • compositions of the present invention may be made by any of various methods, such as by heating the oil to, for example, about 90°C and mixing under high shear while slowly adding the thermoplastic styrenated block copolymer. Once the mixture is oil/block copolymer homogeneous, other optional ingredients may be added, such as one at a time.
  • Comp. 1 had a lower ZSV than desirable;
  • Comp. 2 had a higher STR and HSIVR than desirable;
  • Comp. 3 had a higher ZSV and a higher STR than desirable;
  • Comp. 4 had a had a higher ZSV, a higher STR and a higher HSIVR than desirable.
  • compositions were prepared and tested for ZSV.
  • the compositions are arranged in pairs with each member of a pair having either 10% and a ratio of nonpolar to mid-molecular weight polar oil of 14:1 ; or 15% of thermoplastic block copolymer (KRATON) and a ratio of nonpolar to mid- molecular weight polar oil of 3:1.
  • the first pair (A1 and A2) included hydrogenated polydecene as non-polar oil (a C10 polyolefin) and isopropyl myristate (low log P, high polarity) as the polar oil having a molecular weight less than about 650 g/mol.
  • the second pair (B1 and B2) included hydrogenated C6-C14 polyolefin as non-polar oil and tridecyl trimellitate (high logP, low polarity) as the polar oil having a molecular weight less than about 650 g/mol.
  • the third pair (C1 and C2) included hydrogenated polisiobutene as non-polar oil (a C4 polyolefin) and octyldodecyl neopentanoate (moderate log P, moderate polarity) as the polar oil having a molecular weight less than about 650 g/mol.
  • Examples C1 and C2 have lower ZSV than corresponding samples of equal amounts of KRATON. This seems to suggest that the lower carbon chain nonpolar oil polyolefin, Hydrogenated polyisobutene induces lower ZSV as compared with higher carbon chain and/or higher molecular weight polyolefins, perhaps from reduced entangling effects with the thermoplastic block copolymer.
  • Examples B1 and B2 have higher ZSV than corresponding samples of equal amounts of KRATON. This seems to suggest that the high log P (lower polarity than other polar oils tested) polar oil used in these samples does not plasticize the block copolymer as well as other polar oils with lower log P, so it is less able to drop ZSV.
  • the non-polar oils were hydrogenated polyisobutene (majority) and polybutene (minority); the mid-molecular weight polar oil was octyldodecyl neopentanoate.
  • the non-polar oils were hydrogenated polydecene (majority) and somewhat higher molecular weight polybutene (minority); the mid-molecular weight polar oil was isopropyl myristate.
  • the non-polar oils were hydrogenated poly (C6-C14) polyolefin (majority) and polybutene (minority); the mid-molecular weight polar oil was tridecyl trimellitate.
  • the other cosmetic ingredients included low-molecular weight hydrocarbon resin, inorganic particulate and preservative.
  • the additional fatty compounds for all samples included Bis- Diglyceryl Polyacyladipate-2, Shea butter; and Pentaerythrityl Tetraisostearate (molecular weights between 800 and 2000).
  • the ratio of concentrations by weight in the composition of the thermoplastic block copolymer to the low molecular weight hydrocarbon resin was greater than 2:1 .
  • Example II utilize the same nonpolar and polar oils as Example C1.
  • the ZSVs are slightly higher (20.6 and 25) but is similar to Example C1 (8.1 ) and still in the proper range for good performance. It can also be noted that Example III utilizes the same nonpolar and polar oils as Example A1 .
  • Example III (81.8) is lower than Example A1 (509), bringing it within an acceptable range.
  • Comp I has the same oils as Example B1 and Comp I still has a ZSV (1510) that lower than Example B1 (21 14) but is still too high to perform well.
  • additional fatty compounds can be used, for example, to bring the ZSV directionally towards the higher range of acceptability (80-90 Pa s) but this is most likely to be helpful if the ZSV without such oils is, for example less than about 1000 Pa s.

Abstract

La présente invention concerne des compositions destinées à être appliquées sur les lèvres. Les compositions comprennent au moins environ 8 % en poids d'un copolymère séquencé thermoplastique comprenant des blocs styréniques ; au moins une huile non polaire et au moins une huile polaire ayant un poids moléculaire inférieur à 650 g/mol. Le rapport des concentrations en poids de la ou des huiles non polaires à la concentration en poids de la ou des huiles polaires ayant un poids moléculaire inférieur à 650 g/mol est supérieur ou égal à environ 1 : 1.
PCT/US2021/035455 2020-08-31 2021-06-02 Compositions comprenant un copolymère séquencé styrénique, une huile non polaire et une huile polaire WO2022046233A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US17/007,654 US20220064422A1 (en) 2020-08-31 2020-08-31 Compositions comprising styrenated block copolymer, non-polar oil and polar oil
US17/007,654 2020-08-31
FR2010270 2020-10-08
FR2010270A FR3114972A1 (fr) 2020-10-08 2020-10-08 Compositions comprenant un copolymère séquencé styréné, une huile non polaire et une huile polaire

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2010270A1 (fr) 1968-06-06 1970-02-13 Pioch Et Brunau
US20050244355A1 (en) * 2004-04-30 2005-11-03 Sabino Michael C Long-wearing cosmetic compositions with improved shine
EP1854451A2 (fr) * 2006-05-03 2007-11-14 L'Oréal Compositions cosmétiques contenant des copolymères séquencés et système de produit cosmétique à usage prolongé correspondant
US8557230B2 (en) * 2006-05-03 2013-10-15 L'oreal Cosmetic compositions containing block copolymers, tackifiers and shine enhancing agents
WO2013190708A1 (fr) * 2012-06-21 2013-12-27 L'oreal Composition cosmétique comprenant une résine à base d'hydrocarbure, un copolymère séquencé à base d'hydrocarbure, une huile de diméthicone non volatile et une huile d'hydrocarbure non volatile
US8758739B2 (en) * 2006-05-03 2014-06-24 L'oreal Cosmetic compositions containing block copolymers, tackifiers and gelling agents

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2010270A1 (fr) 1968-06-06 1970-02-13 Pioch Et Brunau
US20050244355A1 (en) * 2004-04-30 2005-11-03 Sabino Michael C Long-wearing cosmetic compositions with improved shine
EP1854451A2 (fr) * 2006-05-03 2007-11-14 L'Oréal Compositions cosmétiques contenant des copolymères séquencés et système de produit cosmétique à usage prolongé correspondant
US8557230B2 (en) * 2006-05-03 2013-10-15 L'oreal Cosmetic compositions containing block copolymers, tackifiers and shine enhancing agents
US8758739B2 (en) * 2006-05-03 2014-06-24 L'oreal Cosmetic compositions containing block copolymers, tackifiers and gelling agents
WO2013190708A1 (fr) * 2012-06-21 2013-12-27 L'oreal Composition cosmétique comprenant une résine à base d'hydrocarbure, un copolymère séquencé à base d'hydrocarbure, une huile de diméthicone non volatile et une huile d'hydrocarbure non volatile

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