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WO1998047464A1 - Emulsion diluee a l'eau formee par homogeneisation a haute pression - Google Patents

Emulsion diluee a l'eau formee par homogeneisation a haute pression Download PDF

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Publication number
WO1998047464A1
WO1998047464A1 PCT/US1998/007514 US9807514W WO9847464A1 WO 1998047464 A1 WO1998047464 A1 WO 1998047464A1 US 9807514 W US9807514 W US 9807514W WO 9847464 A1 WO9847464 A1 WO 9847464A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
emulsion
thin
thin emulsion
emulsifier
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US1998/007514
Other languages
English (en)
Inventor
Philip Franco
Jeffrey Heine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Avon Products Inc
Original Assignee
Avon Products Inc
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
Priority claimed from US08/847,877 external-priority patent/US5994414A/en
Application filed by Avon Products Inc filed Critical Avon Products Inc
Priority to AU69722/98A priority Critical patent/AU6972298A/en
Publication of WO1998047464A1 publication Critical patent/WO1998047464A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A61K8/39—Derivatives containing from 2 to 10 oxyalkylene groups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/06—Emulsions
    • A61K8/062—Oil-in-water 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
    • A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q15/00—Anti-perspirants or body deodorants
    • 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
    • A61K2800/21—Emulsions characterized by droplet sizes below 1 micron

Definitions

  • the present invention concerns a stable oil-in-water emulsion formed by a
  • Emulsions that have been homogenized are known in the art. They
  • Emulsions made by high pressure homogenization are also known. These are
  • emulsions can range from thick, non-flowing creams to light lotions.
  • lotions typically require a post addition after high pressure homogenization of a
  • the emulsifier forms a lamellar liquid-crystalline structure in the
  • water-thin (having essentially the consistency of water) lotion that is suitable as a
  • the high pressure homogenized emulsions of the present invention are
  • emulsifiers By stable, it is meant that the emulsions of the present invention do
  • the emulsions of the present invention are stable at elevated temperatures (such as may be experienced during shipping or storage),
  • non-ionic emulsifiers are used. Based on the instability of the emulsion taught by the Weder et al. patent, it is believed that non-amphoteric and non-
  • lecithin type emulsifiers are preferred for use in the present invention.
  • the high pressure homogenization process of the present invention is the
  • microns into a high pressure device, where the emulsion is subjected to very high pressures, preferably on the order of about 900 to about 1100 bar, more preferably
  • the preferred operating pressure is dependent on the type and concentration of emulsifier used. When less emulsifier is used, the
  • resulting product is about 0.1 microns, with a maximum particle size of about 1 micron.
  • a preferred lotion according to the present invention is formulated in two
  • a lotion pre-mix is formed.
  • This pre-mix is preferably of the
  • ETO (20M) alcohol and POE (2M) stearyl alcohol are the emulsifiers most
  • the present invention are ethoxylated hydrogenated castor oil emulsifiers.
  • This preferred pre-mix is then incorporated into a lotion of the following composition.
  • ingredients are heated to about 160 to about 165 °F.
  • Medium speed agitation is
  • Part A demineralized water is loaded into a side kettle equipped with
  • the mixture is mixed at about 140 to about 145°F until all solids have dissolved.
  • Part A With both phases, Part A and Part B, at the specified temperatures, Part A
  • the addition preferably takes about 15 to about 20 minutes.
  • emulsion must go through a true inversion.
  • the batch is mixed and milled for
  • the batch is cooled to about 110 to about 115°F.
  • Part D ingredients are combined in a suitable container and are mixed
  • Part D is added with medium speed mixing.
  • the resulting pre-mix be processed into a finished
  • the pre-mix is then transferred through the high pressure homogenizer, preferably at about 1000 to about 1100 bar.
  • the homogenizer is set to give a product outlet temperature below 100°F.
  • the lotion is then formulated according to the following process.
  • Part 1 homogenized pre-mix (Part 1) is transferred into a mixing tank equipped with
  • fragrance is then added to Part 1. Mixing is continued for about 15 to about 20
  • the Part 3 demineralized water is then added to the mixing tank.
  • the Part 3 demineralized water is then added to the mixing tank.
  • batch can then be transferred to a filler machine or into suitable storage containers.
  • This water-thin lotion is suitable for distribution in a spray bottle.
  • the lotion can be any suitable for distribution in a spray bottle.
  • the lotion can be any suitable for distribution in a spray bottle.
  • the lotion can be any suitable for distribution in a spray bottle.
  • This lotion is stable over normal temperatures and pressures encountered
  • the lotion retains its stability over time.
  • lotions having the preferred fragrance having the preferred fragrance
  • the lotions and processes of the present invention have several advantages.
  • the lotions produced have improved skin mildness. Moreover, these fine
  • emulsions provide quicker availability of skin treatment ingredients carried therein,
  • lotions of the present invention is in roll-on deodorants and anti-perspirants, where a water-thin emulsion is particularly suitable.
  • emulsion of the present invention is formed, it may subsequently be modified to
  • a preferred roll-on antiperspirant lotion formula pre-mix made according to
  • Methyl paraben 0.20 The roll-on pre-mix is then processed through the high pressure
  • the finished product consists of:
  • emulsifiers are the preferred emulsifiers.
  • Another preferred formulation can include 0.944 weight percent POE (7M) hydrogenated castor oil and 0.456 weight
  • the lotions of the present invention can accommodate variations in the
  • a preferred range of emulsifier is about 0.5 to about 2 weight percent
  • proportions of emulsifiers can be used, but are not needed. It is known that up to

Landscapes

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

Abstract

On décrit une émulsion stable, diluée à l'eau, qu'on forme en traitant une émulsion brute par un procédé d'homogénéisation à haute pression réalisée à une pression d'environ 900 à 1100 bars. Cette émulsion contient de faibles niveaux d'émulsifiant mais ne contient aucun agent stabilisant de post-addition.
PCT/US1998/007514 1997-04-18 1998-04-10 Emulsion diluee a l'eau formee par homogeneisation a haute pression Ceased WO1998047464A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU69722/98A AU6972298A (en) 1997-04-18 1998-04-10 Water-thin emulsion formed by high pressure homogenization process

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US4467597P 1997-04-18 1997-04-18
US60/044,675 1997-04-18
US08/847,877 1997-04-28
US08/847,877 US5994414A (en) 1997-04-28 1997-04-28 Water-thin emulsion formed by high pressure homogenization process

Publications (1)

Publication Number Publication Date
WO1998047464A1 true WO1998047464A1 (fr) 1998-10-29

Family

ID=26721852

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/007514 Ceased WO1998047464A1 (fr) 1997-04-18 1998-04-10 Emulsion diluee a l'eau formee par homogeneisation a haute pression

Country Status (2)

Country Link
AU (1) AU6972298A (fr)
WO (1) WO1998047464A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6777450B1 (en) 2000-05-26 2004-08-17 Color Access, Inc. Water-thin emulsions with low emulsifier levels
EP1582196A2 (fr) 2001-01-18 2005-10-05 L'oreal Nanoémulsion translucide, son procédé de fabrication et ses utilisations dans les domaines cosmétique, dermatologique et/ou ophtalmologique
US8409617B2 (en) 1999-12-09 2013-04-02 Dsm Nutritional Products Inc. Vitamin powder composition and method of making
EP1010416B2 (fr) † 1998-12-17 2015-02-11 L'Oréal Nanoémulsion à base d'esters gras de glycérol, et ses utilisations dans les domaines cosmétique, dermatologique et/ou ophtalmologique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996004A (en) * 1982-08-14 1991-02-26 Bayer Aktiengesellschaft Preparation of pharmaceutical or cosmetic dispersions
US5152923A (en) * 1989-06-26 1992-10-06 Hans Georg Weder Process for the production of a nanoemulsion of oil particles in an aqueous phase

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996004A (en) * 1982-08-14 1991-02-26 Bayer Aktiengesellschaft Preparation of pharmaceutical or cosmetic dispersions
US5152923A (en) * 1989-06-26 1992-10-06 Hans Georg Weder Process for the production of a nanoemulsion of oil particles in an aqueous phase

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1010416B2 (fr) † 1998-12-17 2015-02-11 L'Oréal Nanoémulsion à base d'esters gras de glycérol, et ses utilisations dans les domaines cosmétique, dermatologique et/ou ophtalmologique
US8409617B2 (en) 1999-12-09 2013-04-02 Dsm Nutritional Products Inc. Vitamin powder composition and method of making
US6777450B1 (en) 2000-05-26 2004-08-17 Color Access, Inc. Water-thin emulsions with low emulsifier levels
EP1582196A2 (fr) 2001-01-18 2005-10-05 L'oreal Nanoémulsion translucide, son procédé de fabrication et ses utilisations dans les domaines cosmétique, dermatologique et/ou ophtalmologique

Also Published As

Publication number Publication date
AU6972298A (en) 1998-11-13

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