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
  • A61K8/8141—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
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/04—Dispersions; 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
  • A61K8/81—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
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q5/00—Preparations for care of the hair
  • A61Q5/06—Preparations for styling the hair, e.g. by temporary shaping or colouring

Definitions

• the present application relates to personal care compositions, more specifically, hair fixatives.
• Hair fixatives are designed to hold hair in a particular arrangement styled by the user.
• the treated hair must be resilient to stress and resistant to humidity. While this can be accomplished by a number of cosmetically acceptable materials in theory, at the same time the hair fixative must also be able to be removed by shampoo.
• aesthetic considerations of the hair fixative upon drying are of paramount importance to users, particularly shine, combability, and feel. Users value a soft feel, but heretofore have assumed that they have to sacrifice feel in order to obtain superior holding properties, or vice versa.
• the present invention provides hair fixative compositions, comprising an aqueous dispersion comprising an ethylene acrylic acid copolymer, and optionally, a metallocene catalyzed polyolefin.
• the present invention provides hair fixative compositions, comprising an aqueous dispersion comprising an ethylene acrylic acid copolymer, and optionally a metallocene catalyzed polyolefin.
• hair fixative is intended to refer to personal care compositions for styling hair, such as sprays, mousses, pomades, and gels.
• Personal care relates to compositions to be topically applied to a person (i.e., not ingested).
• the personal care composition is cosmetically acceptable.
• 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.
• ethylene-acrylic acid (EAA) copolymers Copolymerizing ethylene with acrylic acid yields ethylene-acrylic acid (EAA) copolymers.
• EAA ethylene-acrylic acid
• a preferred ethylene acrylic acid copolymer comprises greater than about 15 wt acrylic acid, preferably greater than about 17 wt acrylic acid, more preferably about 20 wt acrylic acid. It should be understood that ranges recited in this disclosure include all subcombinations of ranges.
• a preferred EAA copolymer is PRIMACOR 5990 copolymer (20 wt acrylic acid), which has a melt index of 1300 g/10 minute (ASTM Method D-1238 at 190° C) and a Brookfield viscosity of 13,000 cps at 350° F, and is available from The Dow Chemical Company.
• Another preferred EAA copolymer is PRIMACOR 5980i copolymer (20.5 wt acrylic acid), which has a melt index of 300 g/10 minute (ASTM Method D-1238 at 190° C), available from The Dow Chemical Company.
• EAA copolymers are also available under the tradename NUCREL 2806, available from E.I. du Pont de Nemours and Company, Inc.
• Ethylene-acrylic acid and ethylene-methacrylic acid copolymers are described in U.S. Pat. Nos. 4,599,392, 4,988,781, and 5,938,437, each of which is incorporated herein by reference in its entirety.
• Metallocene catalyzed polyolefins are polyolefins produced with a metallocene catalyst as described in U.S. Pat. Nos. 4,701,432, 5,322,728, and 5,272,236, each of which is incorporated herein by reference in its entirety.
• the metallocene catalyzed polyolefins are polyethylenes produced with a metallocene catalyst.
• Such metallocene catalyzed polyethylenes are available e.g. from 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, which is further described in details in the U.S. Patent Nos. 6,960,635 and 6,525,157, each of which is incorporated herein by reference in its entirety.
• propylene/alpha-olefin copolymers are commercially available from The Dow Chemical Company, under the tradename VERSIFYTM, or from ExxonMobil Chemical Company, under the tradename VISTAMAXXTM.
• the metallocene catalyzed polyolefin is a ethylene/alpha-olefin copolymer, which is commercially available from The Dow Chemical Company, under the tradename INFUSETM.
• the ethylene acrylic acid copolymer and metallocene catalyzed polyolefin are melt-kneaded in an extruder along with water and a neutralizing agent, such as ammonia, potassium hydroxide, sodium hydroxide, or a combination of the two, to form an aqueous dispersion.
• a neutralizing agent such as ammonia, potassium hydroxide, sodium hydroxide, or a combination of the two
• the metallocene catalyzed polyolefin comprises at least one of ethylene/octene copolymers, ethylene/butene copolymers, ethylene/hexene copolymers, or ethylene/butene/hexene terpolymers, preferably a ethylene octene copolymer.
• the ethylene acrylic acid copolymer is present in a range from about 2 wt to about 35 wt by weight of the aqueous dispersion, preferably in a range from about 4 wt to about 20 wt%.
• the metallocene catalyzed polyolefin is present in a range from about 10 wt to about 50 wt by weight of the aqueous dispersion, preferably in a range from about 15 wt to about 40 wt%.
• the ethylene acrylic acid copolymer and metallocene catalyzed polyolefin is in a polymer ratio of about 40:60 to about 15:85.
• the solids content of the aqueous dispersion is in a range from about 10% by weight to about 50% by weight, preferably about 40% by weight.
• the aqueous dispersion is present in a range from about 0.5 wt% to about 10 wt% of solids, preferably about 1 wt% to about 5 wt%, by weight of the personal care composition.
• the hair fixative composition optionally comprises a hair fixative resin.
• Suitable hair fixative resins include those acrylates sold by The Dow Chemical Company under the tradename ACUDYNE, and those chitosan polymers sold by The Dow Chemical Company under the tradename KYTAMER.
• the hair fixative composition optionally comprises a conditioning agent.
• Suitable conditioning agents include those quaternary ammonium salts of
• hydroxyethyl cellulose (Polyquatemium 67) sold by The Dow Chemical Company under the tradename SOFTCAT, those polymeric, quaternary ammonium salts of hydroxyethyl cellulose polymers (Polyquatemium 10) sold by The Dow Chemical Company under the tradename UCARE, and preferably dihydroxypropyl trialkyl ammonium chloride sold by The Dow Chemical Company under the tradename PD QUAT, and described generally in US Patent No. 7,541,496, the entirety of which is incorporated herein by reference.
• the conditioning agent is a quaternary trialkylammonium halide compound following the formula:
• R groups are each individually selected from the group consisting of alkyl groups having from 1 to 12 carbon atoms; wherein the R 2 , R 3 , and R 4 groups are each individually selected from the group consisting of hydrogen, hydroxide, alkyl groups having from 1 to 12 carbon atoms, and hydroxy alkyl groups having from 1 to 12 carbon atoms; wherein y ranges from 0 to 12; wherein X " is selected from the group consisting of fluoride, chloride, bromide, and iodide.
• the R 1 groups are each individually alkyl groups having from 1 to 12, preferably 1 to 6, carbon atoms; the R 2 , R 3 , and R 4 groups are each hydrogen or alkyl groups having from 1 to 6, preferably 1, carbon; y is 0 or 1; and X " is chloride.
• the hair fixative compositions are applied to hair in a conventional manner.
• compositions of the present invention include aqueous dispersions comprising an ethylene acrylic acid copolymer.
• aqueous dispersions include the following:
• PRIMACOR 5980i 20% ethylene acrylic acid resin (60g), potassium hydroxide (25g of 30 wt. %), and water (21g) are placed in a 300 mL Parr reactor vessel fitted with a Cowles blade. The material is heated to 120°C while mixing slowly. Once the set temperature is reached, the mixer is run on high (-1800 rpm) for 25 minutes. While still mixing on high, the sample is diluted with water fed into the reactor with an HPLC pump at a rate of 40mL/min to the desired concentration of 25.7% solids by weight based on the amount of ethylene acrylic acid resin. Heat is removed and stirring continues until the temperature cools to at least 45°C. The Parr is then opened and the dispersion is collected.
• Exemplary hair fixatives of the present invention contain the components recited in TABLE 1 on a weight/weight basis (wt. %).
• AMP PC Ultra Components other than AMP PC Ultra are combined in a beaker with overhead stirring at about 350 rpm. AMP PC Ultra is gradually added dropwise until clear hair gel is formed.
• Comparative hair fixatives contain the components recited in TABLE 2 on a weight/weight basis (wt. ).
• Comparative Batches Y and Z are prepared substantially according to the protocol of Example 2.
• the following commercially available hair fixatives were also procured:
• compositions substantially according to the protocols of Examples 2 and 3 were prepared. Pre-washed and dried tresses of Brazilian Curly hair and European virgin brown hair (both available from International Hair Importers and Products Inc.) were tested in duplicate.
• the curled tresses were uniformly sprayed twice in the front and twice on the back from a distance of about 20.3 centimeters (cm) with the hair spray formulation listed in TABLE 3.
• the spray device dispensed 190 ⁇ (microliters) of formulation with each compression.
• the spray device product was "Euromist Classic” and was manufactured by SequistPerfect, Cary, IL.
• the curled, treated tresses were dried for 1 hour in a controlled environment at 22.5 °C and 55% relative humidity. The curler was removed carefully without uncurling the tress.
• the curled tress was placed in the miniature tensile tester, model MTT160 instrument (Dia-Stron Limited, Unit 9 Focus 303 Business Centre, Andover, Hampshire SP10 5NY UK, or 390 Reed Road, Broomall, Pa 19008, USA) and the work to compress the curl to 50% of its initial diameter was measured. The compression was repeated 5 times for each tress. Measurements were made at about 22.5 °C and 55% relative humidity. The results of curl compression tests for tresses treated with the listed
• compositions are recited in TABLE 3:
• inventive compositions produce hair curls as stiff as commercial products designed for high hold. In addition, inventive compositions hold the curl well after five compressions.
• compositions substantially according to the protocols of Examples 2 and 3 were prepared. Pre-washed and dried tresses of Curly/Kinky hair (available from International Hair Importers and Products Inc.) were tested. Frizz is a subjective evaluation of a hair tress. After exposure to humidity, trained panelists observe extended sides and excessive curliness compared to original tresses. Results are reported in TABLE 6.
• the inventive compositions display reduced frizz without significantly increasing stiffness, leading to better aesthetics while achieving less frizz.
• Exemplary hair fixatives (mousses) of the present invention contain the components recited in TABLE 7 on a weight/weight basis (wt. ). TABLE 7
• ACUDYNE 1000 is dispersed into water, followed by ACUDYNE 88, and the remaining components (except AMP-95) are added with overhead stirring at about 300 rpm. AMP-95 is then added gradually with mixing until a translucent solution forms.
• Comparative hair fixatives (mousses) contain the components recited in TABLE 8 on a weight/weight basis (wt. %).
• compositions substantially according to the protocols of Examples 2 and 3 were prepared. Pre-washed and dried tresses of European 8-hour bleached hair (available from International Hair Importers and Products Inc.) were wetted with warm tap water, squeezed off to remove excess water, and applied lg of formulation test solution along the length of the hair swatches (8 inches long, weigh 5g), three (3) hair tresses per test sample.
• European 8-hour bleached hair available from International Hair Importers and Products Inc.
• Scales are from 1 to 5, with higher number meaning better performance attributes, such as easier combability and silky feel. Hair swatches are then dried in 45C oven for lhr for stiffness, dry comb and feel, static and volume evaluation. Scales are from 1 to 5, with higher number meaning better performance attributes, such as high stiffness, easier combability and silky feel, no static or fly away, and more volume.
• each recited range includes all combinations and subcombinations of ranges, as well as specific numerals contained therein. Additionally, the disclosures of each patent, patent application, and publication cited or described in this specification are hereby incorporated by reference herein, in their entireties.

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• 2011
  • 2011-10-12 US US13/822,781 patent/US9233064B2/en not_active Expired - Fee Related
  • 2011-10-12 WO PCT/US2011/055953 patent/WO2012054278A2/en not_active Ceased
  • 2011-10-12 EP EP11776956.2A patent/EP2629743B1/en not_active Not-in-force
  • 2011-10-12 JP JP2013534949A patent/JP2013540153A/ja not_active Withdrawn
  • 2011-10-12 BR BR112013008316A patent/BR112013008316A2/pt not_active IP Right Cessation
  • 2011-10-12 CN CN201180050788.1A patent/CN103179944B/zh not_active Expired - Fee Related
• 2016
  • 2016-07-21 JP JP2016143383A patent/JP6240272B2/ja not_active Expired - Fee Related

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