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WO2008103137A1 - Alcoxylates de beurre de karité - Google Patents

Alcoxylates de beurre de karité Download PDF

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Publication number
WO2008103137A1
WO2008103137A1 PCT/US2007/004583 US2007004583W WO2008103137A1 WO 2008103137 A1 WO2008103137 A1 WO 2008103137A1 US 2007004583 W US2007004583 W US 2007004583W WO 2008103137 A1 WO2008103137 A1 WO 2008103137A1
Authority
WO
WIPO (PCT)
Prior art keywords
shea butter
mild
weight
processed
alkoxylates
Prior art date
Application number
PCT/US2007/004583
Other languages
English (en)
Inventor
Steven Rogers
Anthony O'lenick
Original Assignee
Rutherford Chemicals Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rutherford Chemicals Llc filed Critical Rutherford Chemicals Llc
Priority to PCT/US2007/004583 priority Critical patent/WO2008103137A1/fr
Publication of WO2008103137A1 publication Critical patent/WO2008103137A1/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/92Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/45Derivatives containing from 2 to 10 oxyalkylene groups

Definitions

  • the present invention relates to novel mild-processed shea butter alkoxylates prepared by the reaction of mild-processed shea butter (MPSB) with ethylene oxide, propylene oxide or mixtures thereof. These compounds are useful as cosmetic and personal care ingredients, allowing for the delivery of highly desirable active ingredients present in MPSB, including natural antioxidants, in a water-soluble form that is substantive to the skin and hair.
  • MPSB mild-processed shea butter
  • Shea Butter is a butter extracted from the kernel of Butrospermum parkii. This plant, also referred to as Vitellaria paradoxa, is native to Africa.
  • the term butter describes a material that is a solid at room temperature, but melts at about 4O 0 C. Chemically, the butter is a triglyceride conforming to the following structure
  • R 2 -C(O)-O-CH 2 wherein R x , R y and R z each have one of the following compositions:
  • R y is different than R x and R 2 , the latter two being similar.
  • the R y moiety contains predominantly the unsaturated Cis group (oleyl) while R x and R z contain predominantly the saturated Ci ⁇ group (stearyl). Differences between internal (R y ) and terminal (R x , R z ) substitution are seen in natural products, but not in synthetic molecules produced in the laboratory.
  • the novel mild-processed shea butter alkoxylates of the present invention are produced by an ethenification reaction of MPSB with ethylene oxide, propylene oxide or mixtures thereof under specific mild-processing conditions.
  • mild processing is meant processes that do not remove or otherwise diminish the amount or potency of active ingredients, particularly highly desired unsaponifiables.
  • mild processing is employed both at the time Rogers; O'Lenick, Jr. Shea Butter Alkoxylates Atty.
  • the meadowfoam PEG/PPG esters are described as having good oxidative stability which is attributed to the specific carbon chain distribution of meadowfoam oil.
  • These prior art compounds differ, however, from the alkoxylated mild-processed shea butters of the present invention in which ethylene oxide, propylene oxide and mixtures are inserted into mild-processed shea butter through an ethenification reaction.
  • fOOlO] Ethoxylated shea butter is listed in the International Dictionary of Cosmetic Ingredients(10 th Edition), published by the Cosmetics, Toilteries and Fragrance Association.
  • Ethoxylated shea butter having about 75 moles of ethylene oxide per mole of glyceride is commercially available under the tradename Lipex TM102 E75 from Karlshamns AB (Karlshamn, Sweeden). This material is extracted with hydrocarbon solvents. Ethoxylated shea butter is also commercially available form Oils By Nature (Cleveland, Ohio) and KIC Chemicals, Inc. (Armonk, NY).
  • novel alkoxylates of the present invention are water-soluble emollients that not only not only condition and soften skin and hair, but also deliver antioxidants (present in the unsaponif ⁇ able fraction of mild-processed shea butter) in a heretofore unachievable manner.
  • antioxidants present in the unsaponif ⁇ able fraction of mild-processed shea butter
  • the compounds of the present invention are mild-processed shea butter alkoxylates produced by an ethenification reaction conducted under mild-processing conditions of mild-processed shea butter with ethylene oxide, propylene oxide and mixtures thereof.
  • the novel alkoxylates of the present invention are rich in unsaponifiables, including antioxidants.
  • the present invention relates to a novel class of alkoxylates made by reacting mild-processed shea butter with ethylene oxide, propylene oxide and mixtures thereof under specific mild-processing conditions. Another aspect of the present invention relates to a process for using these compounds in personal care applications. Mild processing is employed both at the time of harvesting and initial extraction and during subsequent preparation of alkoxylate derivatives. Tn so doing, materials containing unexpectedly high amounts of active ingredients, particularly highly desired unsaponifiables, are produced.
  • MPSB alkoxylates of the present invention conform to the following structure: R 1 -C(O)-O-(CH 2 CH 2 O) a -(CH2CH(CH 3 )O) b -(CH 2 CH 2 O)c-CH2 R 2 -C(O)-O-(CH2CH 2 O) a -(CH2CH(CH 3 )O)b-(CH 2 CH2O)c-CH R 3 -C(O)-O-(CH2CH 2 O) a -(CH2CH(CH3)O) b -(CH 2 CH 2 O) c -CH2 (i) wherein R 1 , R 2 , R 3 are each derived from mild-processed shea butter which comprises from about 0.1% to about 2.0 % by weight Ci
  • Another aspect of the present invention is a process for delivering antioxidants to the skin and hair by applying thereto a finished topical product comprising an effective amount of an alkoxylate made by an ethenification reaction of MPSB and ethylene oxide, propylene oxide and mixtures thereof that conforms to the following structure: R 1 -C(O)-O-(CH 2 CH 2 O)a-(CH 2 CH(CH 3 )O) b -(CH 2 CH 2 O) c -CH2 R 2 -C(O)-O-(CH 2 CH 2 O) a -(CH 2 CH(CH3)O) b -(CH 2 CH 2 O) c -CH R 3 -C(O)-O-(CH 2 CH 2 O)a-(CH 2 CH(CH3)O) b -(CH 2 CH 2 O) c -CH 2 (i) wherein R 1 , R 2 , R 3 are each derived from mild-processed shea butter which comprises from about 0.1% to
  • finished topical product is meant a cream, lotion, gel, foam, ointment, paste, emulsion, suspension, dispersion, solution, or similar topically-applied carrier or delivery system known to those of skill in the art. Rogers; O'Lenick, Jr. Shea Butter Alkoxylates Atty. Docket VER-PCT-006
  • Mild-processed shea butter is made using a hydrocarbon-free solvent system and its alkoxylate derivatives of the present invention are made under mild processing conditions. At the time of harvesting and initial extraction ground-up kernels are boiled in water under mild conditions described in the examples below. The oil phase is then separated from the water phase by decanting. This process provides a yellow solid wax rich in unsaponifiables.
  • wax is meant a material obtained by boiling in water under ambient conditions, decanted and filtered.
  • the mild processing of the present invention may be contrasted with separation using solvents and high temperature treatment with high pressure steam. While the latter processes result in what some may describe as a "more pure" triglyceride, unsaponifiables, and the benefits derived therefrom, are lost. Vacuum distillation which strips off the desirable components is also to be avoided in processing MPSB of the present invention.
  • materials comprising from about 5% to about 15% by weight of unsaponifiables can be produced.
  • Sterols comprise about 20% of the unsaponifiables.
  • the sterols comprise: cholesterol (from about 1 % to about 3%); alpha-spinasterol (from about 1% to about 4%); delta-7-stigmasterol (from about 40% to about 44%); delta-7-avenasterol (from about 38% to about 41%).
  • the remaining constituents of the unsaponifiables (about 80%) include other highly desirable active compounds including tocopherol, karitin, cinamic acid esters, alpha and beta amyrin and phenolics.
  • Phenolic compounds are natural products composed of one or more aromatic benzene rings with one or more hydroxyl group. They are a class of natural products that possess antioxidant and free radical scavenging properties.
  • VER-PCT-006 unsaponifiables of mild-processed shea butter include gallic acid, gallocatchin, catechin, epigallocatechin gallate, epicatechin, gallocatechin gallate, gallocatechin gallate and quercetin.
  • Ethylene oxide is an item of commerce that conforms to the following structure:
  • Propylene oxide is an item of commerce conforming to the following structure:
  • the starting MPSB is made according to following procedure: 400.0 grams of the nut form the shea butter tree are cracked into small pieces and placed into a one-liter vat of water. The water is then heated to 100 0 C. As the temperature increases, an oil phase develops on the surface of the water. The temperature is held for about 2 hours, after which the oil is decanted and passed through filter paper.
  • the resulting butter is mild-processed shea butter according to the present invention. It is rich in unsaponifiable (from about 7% to about 15% by weight) and may be used in making the MPSB dirnethicone copolyol derivatives, including MPSB DMC esters, of the present invention. Rogers; O'Lenick, Jr. Shea Butter Alkoxylates Atty. Docket VER-PCT-006

Landscapes

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

Abstract

L'invention concerne de nouveaux alcoxylates préparés par réaction d'un beurre de karité tranformé par des techniques douces (MPSB: mild processed shea butter) avec le l'oxyde d'éthylène, de l'oxyde de propylène ou des mélanges de ceux-ci. Ces composés sont utiles en tant qu'ingrédients cosmétiques et de soins personnels, et permettent de fournir des principes actifs de haute valeur contenus dans le beurre de karité MPSB, notamment d'anti-oxydants naturels, sous une forme hydrosoluble substantive pour la peau et les cheveux.
PCT/US2007/004583 2007-02-23 2007-02-23 Alcoxylates de beurre de karité WO2008103137A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2007/004583 WO2008103137A1 (fr) 2007-02-23 2007-02-23 Alcoxylates de beurre de karité

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/004583 WO2008103137A1 (fr) 2007-02-23 2007-02-23 Alcoxylates de beurre de karité

Publications (1)

Publication Number Publication Date
WO2008103137A1 true WO2008103137A1 (fr) 2008-08-28

Family

ID=39710322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/004583 WO2008103137A1 (fr) 2007-02-23 2007-02-23 Alcoxylates de beurre de karité

Country Status (1)

Country Link
WO (1) WO2008103137A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994018292A1 (fr) * 1993-02-11 1994-08-18 The Procter & Gamble Company Compositions d'hygiene corporelle
WO2005016309A1 (fr) * 2003-08-11 2005-02-24 Rovi Gmbh & Co. Kosmetische Rohstoffe Kg Composition cosmetique favorisant le transport d'oxygene dans la peau
US7179494B1 (en) * 2006-01-20 2007-02-20 Marche Image Corp. Composition and method for reducing incidents of hot flashes in females

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994018292A1 (fr) * 1993-02-11 1994-08-18 The Procter & Gamble Company Compositions d'hygiene corporelle
WO2005016309A1 (fr) * 2003-08-11 2005-02-24 Rovi Gmbh & Co. Kosmetische Rohstoffe Kg Composition cosmetique favorisant le transport d'oxygene dans la peau
US7179494B1 (en) * 2006-01-20 2007-02-20 Marche Image Corp. Composition and method for reducing incidents of hot flashes in females

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