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
  • A61K8/72—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
• • 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
  • A61K8/31—Hydrocarbons
• • 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
  • A61K8/34—Alcohols
  • A61K8/345—Alcohols containing more than one hydroxy group
• • 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
  • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
  • A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; 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
  • A61K8/84—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
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/12—Preparations containing hair conditioners
• • 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
  • A61K2800/30—Characterized by the absence of a particular group of ingredients
• • 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
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/59—Mixtures
  • A61K2800/592—Mixtures of compounds complementing their respective functions
  • A61K2800/5922—At least two compounds being classified in the same subclass of A61K8/18
• • 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
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/59—Mixtures
  • A61K2800/594—Mixtures of polymers

Definitions

• compositions that are useful as sensory agents in hair care formulations.
• the compositions contain a polyolefin blend.
• polyolefin blends which contain a first metallocene catalyzed polyolefin with a density above 0.90 g/cm 3 and a second metallocene catalyzed polyolefin with a density equal to or below 0.90 g/cm 3 , are highly effective sensory agents in hair care formulations and exhibit significantly better sensory properties compared to previously known sensory agents for hair care compositions.
• one aspect of the present invention provides a hair care composition containing: (a) a polyolefin oil blend comprising (i) at least one high density metallocene catalyzed polyolefin with a density greater than 0.90 g/cm 3 , (ii) at least one low density matellocene catalyzed polyolefin with a density equal to or below 0.90 g/cm 3 , and (iii) a cosmetically acceptable hydrocarbon oil; (b) a thickener; and (c) a humectant.
• the polyolefin oil blend is present in the composition in an amount of from 0.1 to 1.4 weight % by weight of the composition.
• the high and low density polyolefins in the polyolefin oil blend have an average melt index greater than 7.
• the composition is substantially free of ethylene- acrylic acid copolymer.
• FIG. 1 is a shine profile of two different hair swatches - one treated with a leave-on conditioner containing a polyolefin oil blend in accordance with the present invention, and another with a control leave-on conditioner that does not contain a polyolefin oil blend.
• metallocene catalyzed polyolefins of medium or high density i.e., polyolefins having a density above 0.90 g/cm 3 as measured by ASTM D 792
• metallocene catalyzed polyolefins of low density i.e., polyolefins having a density of from 0.86 to 0.90 g/cm 3
• low molecular weight metallocene catalyzed polyolefins i.e., polyolefins having a melt index greater than or equal to 8 as measured by ASTM D 123
• high molecular weight metallocene catalyzed polyolefins i.e., polyolefins having a melt index less than 8 as measured by ASTM D 123
• compositions comprising a polyolefin oil blend impart improved sensorial and aesthetic properties demonstrating good manageability, anti-frizz properties, and shine profiles in hair care formulations.
• hair care compositions preferably leave-on hair conditioners, comprising a polyolefin oil blend, a humectant, and a thickener.
• the polyolefin oil blend comprises at least one high density metallocene catalyzed polyolefin with a density above 0.90 g/cm 3 , at least one low density metallocene catalyzed polyolefin with a density equal to or below 0.90 g/cm 3 , preferably from 0.86 to 0.90 g/cm 3 , and a cosmetically acceptable hydrocarbon oil.
• the average melt index for the high and low density polyolefins in the polyolefin oil blend is greater than 7, preferably greater than 8, and more preferably greater than 8.5.
• the high density polyolefin has a weight-average molecular weight in a range of from 5,000 to 40,000, preferably 10,000 to 30,000, and more preferably from 20,000 to 28,000.
• the low density polyolefin has a weight-average molecular weight in a range of from 41,000 to 500,000, preferably 70,000 to 90,000, and more preferably from 75,000 to 85,000.
• the hair care compositions are substantially free of ethylene-acrylic acid copolymer.
• hair care relates to compositions to be topically applied to a person, and in particular a person's hair.
• hair care compositions include, but are not limited to, shampoos, leave-on and rinse off conditioners, styling gels, and hairsprays.
• the hair care composition is a conditioner, preferably a leave- on hair conditioner.
• Cosmetically acceptable refers to ingredients typically used in personal care compositions, and is intended to underscore that materials that are toxic when present in the amounts typically found in personal care compositions are not contemplated as part of the present invention.
• Metallocene catalyzed polyolefins are polyolefins produced with a metallocene catalyst. Metallocene catalysis enables control of the polyolefin properties relating to, for example, crystallinity, polymer chain length, and distribution homogeneity of the polymer chain units. Metallocene catalysis also favors uniformity in polymer chains density and length. Suitable metallocene catalysts include, for example, those described in U.S. Patent Nos. 4,701,432, 5,322,728, and 5,272,236. In certain embodiments of the present invention, the metallocene catalyzed polyolefins are polyethylenes produced with a metallocene catalyst. Suitable metallocene catalyzed polyethylenes are available from, for example, The Dow Chemical Company under the trademark AFFINITY or ENGAGE (ethylene/octene copolymers), and from Exxon Chemical Company under the trademark EXACT
• the metallocene catalyzed polyolefin is at least one of ethylene/octene copolymers, ethylene/butene copolymers, ethylene/hexene copolymers, ethylene/propylene or ethylene/butene/hexene terpolymers, preferably an ethylene octene copolymer.
• the metallocene catalyzed polyolefin is a propylene/alpha-olefin copolymer.
• Suitable propylene/alpha-olefin copolymers include, for example, those described in detail in U.S. Patent Nos. 6,960,635 and 6,525,157. Such propylene/alpha-olefin copolymers are commercially available from The Dow Chemical Company under the trademark VERSIFY, or from ExxonMobil Chemical Company under the trademark VISTAMAXX. Other suitable polyolefins are sold by The Dow Chemical
• inventive compositions described herein are substantially free of EAA.
• substantially free in this context means less than 3 weight %, preferably less than 1 weight %, more preferably less than 0.1 weight %, and even more preferably zero weight percent present in the composition.
• the at least one high density metallocene catalyzed polyolefin is present in an amount of from 1 to 60 weight %, preferably from 2 to 40 weight %, and more preferably from 5 to 10 weight %, of solids by weight of the polyolefin oil blend.
• the at least one low density metallocene catalyzed polyolefin is present in an amount of from 1 to 60 weight %, preferably from 2 to 40 weight %, and more preferably from 5 to 10 weight %, of solids by weight of the polyolefin oil blend.
• the ratio of at least one metallocene catalyzed polyolefin with a density above 0.90 g/cm 3 to the at least one metallocene catalyzed polyolefin with a density equal to or below 0.90 g/cm 3 is between 1:95 and 95:1, preferably between 10:50 and 60:10, and more preferably between 10:40 and 40:10. In certain preferred embodiments, the ratio is 1: 1, 1.5: 1, 2:1, or 3:1.
• the polyolefin oil blend is prepared by shearing the above-described polyolefins in a carrier fluid including, for example, aromatic hydrocarbons, aliphatic hydrocarbons, alcohols, esters, ethers, glycols, carbonates, silicones, glycol ethers at high temperature, above 100°C, preferably from 120°C to 150°C.
• a carrier fluid including, for example, aromatic hydrocarbons, aliphatic hydrocarbons, alcohols, esters, ethers, glycols, carbonates, silicones, glycol ethers at high temperature, above 100°C, preferably from 120°C to 150°C.
• the polyolefin oil blend is referred to as an "oil gel," although the polyolefin blend can be powder, pellet/bead, oil gel/ oil paste, or water dispersion.
• hydrocarbon oils are suitable for use in the present invention, and are selected from various carbon chain length oils.
• the hydrocarbon oils include, but are not limited to, C14-C22 hydrocarbon oils.
• the hydrocarbon oil is less than fourteen carbons in length. In certain embodiments, the hydrocarbon oil is greater than twenty-two carbons in length.
• Suitable hydrocarbon oils include, for example, those sold under the trademarks LILAC, GEMSEAL 25, GEMSEAL 40, PERMETHYL 101A, PERMETHYL 99A, SILKFLO 364 NF, SILKFLO 366 NF, FANCOL POLYISO 200-CG, FANCOL POLYISO 300-CG, FANCOL POLYISO 450-CG, FANCOL POLYISO 800-CG, PANALANE L-14E, PURESYN 2, PURESYN 4, or RITADECENE 20.
• the hydrocarbon oil is present in an amount of from 40 to 98 weight %, preferably 60 to 94 weight %, and more preferably from 80 to 90 weight %, by weight of the polyolefin oil blend.
• the polyolefin oil blend (containing at least one high density metallocene catalyzed polyolefin, at least one low density metallocene catalyzed polyolefin, and at least one cosmetically acceptable hydrocarbon oil) is present in an amount of from 0.1 to 1.4 weight %, preferably 0.3 to 1.2 weight %, and more preferably 0.5 to 1.0 weight %, by weight of the hair care composition.
• the hair care compositions of the present invention include a thickener/rheology modifier. Thickeners are substances that increase the viscosity of a solution or liquid/solid mixture without substantially modifying its other properties.
• Suitable thickeners include, for example, polysaccharides (e.g., xanthan gum, guar gum, starch, and vegetable gum) and cellulosic polymers (e.g., carboxymethyl cellulose (CMC), hydroxymethyl cellulose (HMC), and hydroxypropyl methyl cellulose (HPMC)).
• Certain preferred thickeners include, for example, hydrophobically modified cross-linked acrylate copolymers (e.g., those sold by Lubrizol under the trademark CARBOPOL ULTREZ 21).
• the thickener is present in an amount of from 0.1 to 1.0 weight %, preferably from 0.2 to 0.7 weight %, and more preferably from 0.3 to 0.5 weight %, by weight of the hair care composition.
• the hair care compositions of the present invention also include a humectant to prevent the loss of moisture.
• Suitable humectants include, for example, glycerin, sorbitol, monoglycerides, lecithins, glycolipids, fatty alcohols, fatty acids, polysaccharides, sorbitan esters, polysorbates (e.g., Polysorbate 20, Polysorbate 40, Polysorbate 60, and Polysorbate 80), diols (e.g., propylene glycol), diol analogs, triols, triol analogs, polymeric polyols, and mixtures thereof.
• the humectant is present in an amount of from 1 to 20 weight %, preferably 2 to 15 weight %, and more preferably 5 to 10 weight %, by weight of the hair care composition.
• the hair care composition In addition to the polyolefin blend, thickener, and humectant, the hair care composition, the hair care composition
• compositions also contain water in an amount of from 85 to 95 weight %, preferably from 60 to 80 weight %, and more preferably from 50 to 70 weight %, by weight of the hair care composition.
• the hair care composition contains excipients, such as additional emollients (e.g., hydrocarbon oils, esters, natural oils, or silicones), waxes, sensory modifiers, preservatives/antioxidants/chelating agents, pH adjusting excipients, such as additional emollients (e.g., hydrocarbon oils, esters, natural oils, or silicones), waxes, sensory modifiers, preservatives/antioxidants/chelating agents, pH adjusting excipients, such as additional emollients (e.g., hydrocarbon oils, esters, natural oils, or silicones), waxes, sensory modifiers, preservatives/antioxidants/chelating agents, pH adjusting excipients, such as additional emollients (e.g., hydrocarbon oils, esters
• agents/buffers/neutralizing agents sunscreen actives, vitamins, proteins/amino acids, plant extracts, natural ingredients, bio-actives, fragrances/perfumes, penetrants,
• polymers/resins/hair fixatives/film formers surfactants/detergents/emulsifiers/opacifying agents, volatiles/propellants/solvents/carriers, liquid vehicles/solvents/carriers, salts, antistatic agents, anti-frizz agents, antidandruff agents, hair waving/straightening agents, absorbents, colorants, hard particles, conditioning agents, and other silicones.
• Example Poly olefin Oil Blend 1 A polyolefin oil blend in the form of a polyolefin oil gel was prepared by combining
• a polyolefin oil blend in the form of a polyolefin oil gel was prepared by combining 4.17 grams of AFFINITY GA 1950, 4.17 grams of LDPE 9551, 4.17 grams of ATTANE 4404G, and 87.5 grams of LILAC oil (C14-C22 hydrocarbon oil) in a glass container.
• the container was placed on a hot plate and set up as a closed system with nitrogen filled on top of the surface.
• the mixture was mixed with an overhead stirrer at a speed of about 100-200 rpm at a temperature of about 150°C for about 1 hour until all of the solids are melted.
• the mixture was then cooled while mixing until it reached a temperature of about 85°C.
• a leave-on hair conditioner including the polyolefin oil blend prepared in Example 1 above was prepared according to the formulation in Table 2.
• Phase A was heated to about 40°C and stirred for 10 minutes at 300 rpm. Phases A and B were then combined and heated to 85-90°C while stirring continuously at 300 rpm. Phase C was heated separately to 85-95°C and then added to Phases A and B. Phases A, B, and C were then heated at 85-90°C while stirring at 500 rpm for 10 minutes. The mixture was then cooled while stirring at 300 rpm. Phase D was added once the mixture cooled to 45 °C.
• a leave-on hair conditioner not including a polyolefin oil blend was prepared according to the formulation in Table 3.
• Phase A was heated to about 40°C and stirred for 10 minutes at 300 rpm. Phases A and B were then combined and heated to 85-90°C while stirring continuously at 300 rpm. Phase C was heated separately to 85-95°C and then added to Phases A and B. Phases A, B, and C were then heated at 85-90°C while stirring at 500 rpm for 10 minutes. The mixture was then cooled while stirring at 300 rpm. Phase D was added once the mixture cooled to 45 °C.
• the shine profiles of the first three swatches were evaluated using the SAMBA Hair system available from Bossa Nova Technologies.
• the swatches being one inch wide, hundreds of hair fibers are analyzed at the same time, allowing statistical and spectral signal averaging.
• a polarization color camera detects the scattered light reflecting from the swatch as specular or diffused light for each pixel of the image.
• the results of the shine profiles are shown in FIG. 1, which demonstrates that the inventive composition as prepared in Example 3 above performed better (i.e., had lower normalized units) than the control composition as prepared in Example 4 above, even at very low concentrations of the polyolefin oil blend.

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• 2015
  • 2015-03-05 JP JP2016555717A patent/JP6572230B2/ja not_active Expired - Fee Related
  • 2015-03-05 CN CN201580011699.4A patent/CN106061460B/zh not_active Expired - Fee Related
  • 2015-03-05 EP EP15710380.5A patent/EP3116468B1/en not_active Not-in-force
  • 2015-03-05 WO PCT/US2015/018918 patent/WO2015138210A1/en not_active Ceased
  • 2015-03-05 US US15/123,768 patent/US20170014328A1/en not_active Abandoned

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