WO1993023482A1 - Particules enrobees - Google Patents

Particules enrobees Download PDF

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Publication number
WO1993023482A1
WO1993023482A1 PCT/EP1993/001178 EP9301178W WO9323482A1 WO 1993023482 A1 WO1993023482 A1 WO 1993023482A1 EP 9301178 W EP9301178 W EP 9301178W WO 9323482 A1 WO9323482 A1 WO 9323482A1
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WO
WIPO (PCT)
Prior art keywords
weight
coating
particles
oxide particles
metal oxide
Prior art date
Application number
PCT/EP1993/001178
Other languages
English (en)
Inventor
Edward Galley
Nicola Anne Fardell
Original Assignee
The Boots Company Plc
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 The Boots Company Plc filed Critical The Boots Company Plc
Publication of WO1993023482A1 publication Critical patent/WO1993023482A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • A61K8/11—Encapsulated compositions
    • 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
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/27—Zinc; Compounds thereof
    • 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
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/29—Titanium; Compounds thereof
    • 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
    • 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
    • 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
    • A61Q1/08—Preparations containing skin colorants, e.g. pigments for cheeks, e.g. rouge
    • 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
    • A61Q1/10—Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
    • 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
    • A61Q1/12—Face or body powders for grooming, adorning or absorbing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q3/00—Manicure or pedicure preparations
    • A61Q3/02—Nail coatings
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B63/00—Lakes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/04—Compounds of zinc
    • C09C1/043—Zinc oxide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3669—Treatment with low-molecular organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
    • 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
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
    • 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
    • A61K2800/42—Colour properties
    • A61K2800/43—Pigments; Dyes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Definitions

  • the present invention relates to coated particles for use in cosmetic and toiletry formulations.
  • the present invention provides metal oxide particles having a coating of dye, said coating comprising 0.01 to 5% by weight of the coated particle.
  • cationic dyes can be used to permanently colour metal oxide particles by adsorbing directly on to the metal oxide surface.
  • Dyes which act in this respect include those containing an iminium linkage, those containing a quaternary ammonium ion, acidic azo-dyes, pyrazole and xanthene dyes.
  • R is H or a group bonded to the nitrogen atom via the carbon atom act in this respect.
  • suitable dyes include:
  • dyes containing a quaternary ammonium ion of formula II More preferable are dyes containing a quaternary ammonium ion of formula II :
  • dyes examples include:
  • Such dyes exhibit particular efficacy in colouring the metal oxide particles and may be obtained commercially from Williams under the trade name Arianor.
  • acidic monoazo dyes suitable for coating the metal oxide particles include:
  • pyrazole dyes suitable for coating the metal oxide particles include:
  • xanthene dyes suitable for coating the metal oxide particles include: D & C Red no. 22
  • the metal oxide particles of the present invention preferably comprise titanium dioxide, zinc oxide or mixtures thereof.
  • the titanium dioxide particles have a primary particle size of less than lOOnm and the zinc oxide particles have a primary particle size of 1-ess than 500nm.
  • One aspect of the present invention provides titanium dioxide particles having a mean primary particle size of less than lOOnm and having a coating of dye, said coating comprising 0.01 to 5% by weight of the coated particle.
  • a further aspect of the ⁇ present invention provides zinc oxide particles having a mean primary particle size of less than 500nm and having a coating of dye, said coating comprising 0.01 to 5% by weight of the coated particle.
  • coated metal oxide particles of the present invention may be prepared and separated as described hereinafter, or they may be prepared in situ during the preparation of emulsion products, provided that the surface of the metal oxide is hydrophilic.
  • the dye is dissolved in the water phase of the formulation and the metal oxide is dispersed into the water phase of the composition during the manufacture of that composition.
  • the dye used may be a single dye, or a mixture of different dyes, to achieve metal oxide particles of a desired colour.
  • the coated metal oxide particles are formed using certain dyes, for example Food Yellow 5, Food Red 10 or D & C Red no. 22 dye, it may be preferable to decrease the solution pH by addition of a suitable acid, such as hydrochloric acid, in order to obtain a desirable level of colour coating on the metal oxide particles.
  • the coated metal oxide particles may be collected, for example, by filtration.
  • the above procedures are particularly suited to the preparation of coated titanium dioxide particles, preferably having a mean primary particle size of less than lOOnm, wherein the cationic dyes adsorb directly on to the titanium dioxide surface.
  • An analagous procedure can be applied to zinc oxide particles preferably having a mean primary particle size in the range 1 to SOOn , wherein the cationic dyes adsorb directly on to the zinc oxide surface.
  • the particles of the present invention may be used to prepare cosmetic and toiletry compositions, for example, sunscreens, face powders, blush powders, eye shadow powders, lipsticks, mascaras, nail polish bases and foundation creams .
  • the metal oxide particles in the above compositions are preferably:
  • titanium dioxide particles having a mean primary particle size of less than lOOnm a) titanium dioxide particles having a mean primary particle size of less than lOOnm, b) zinc oxide particles having a mean primary particle size of less than 500nm, or c) mixtures thereof in a ratio of between 1:99 and 90:10 of titanium dioxide:zinc oxide, preferably of between 5:95 and 60:40.
  • Preferred sunscreen compositions comprise the titanium dioxide particles of the present invention.
  • titanium dioxide as a sunscreening agent is well known.
  • sunscreen is used herein to encompass tanning lotions, sunscreens and sunblockers which are intended for use on the body to provide protection against the sun's rays or other UV sources.
  • the amount of titanium dioxide present in a sunscreen composition depends on the use for which the composition is intended. Amounts as low as 1% by weight may be sufficient in the so-called suntanning products which are not intended to prevent the sun's rays reaching the skin whereas the so-called sunblocks which are intended to prevent substantially all of the sun's rays reaching the skin may require levels of 15 to 20% by weight.
  • the amount of titanium dioxide in the sunscreen composition exceeds about 5% by weight the composition may exhibit a blue-white pearl effect which is aesthetically unattractive and limits the amount of titanium dioxide which can be incorporated into a sunscreen composition which is acceptable to the user.
  • titanium dioxide particles lies in the range 1 to lOOnm, preferably in the range 5 to 50nm and more preferably in the range 15 to 30nm.
  • Titanium dioxide of the above mean primary particle size is referred to herein as "microfine”.
  • Suitable grades of titanium dioxide are available from Degussa under the trade designation P25, and from Tayca Corporation under the trade designation MT150W, MT600B or MT500B, and from Ke ira under the trade designation UV Titan M210.
  • the present invention provides a sunscreen composition
  • a sunscreen composition comprising 0.02 to 30% by weight of titanium dioxide particles, having a mean primary particle size of less than lOOnm and having a coating of dye, said coating comprising 0.01 to 5% by weight of the coated particles.
  • the composition comprises 0.5 to 20%, more preferably 1 to 15% by weight of the coated titanium dioxide particles.
  • a further aspect of the present invention provides a sunscreen composition comprising a water-in-oil emulsion which comprises:
  • a still further aspect of the invention provides a sunscreen composition comprising an oil-in-water emulsion which comprises:
  • sunscreening agents may be incorporated into the sunscreen compositions of the present invention.
  • suitable further sunscreening agents include
  • p-aminobenzoic acids, esters and derivatives for example, 2-ethylhexyl p-dimethylaminobenzoate, or the - octyl ester of p-aminobenzoic acid
  • methoxycinnamate esters for example, 2-ethylhexyl p-methoxycinnamate, 2-ethoxyethyl p-methoxycinnamate or ⁇ , ⁇ -di- (p-me hoxy-cinnamoyl) - ⁇ ' - (2-ethylhexanoyl) - glycerin
  • benzo-phenones for example oxybenzone
  • Any additional sunscreening agent is present in an amount from 0.1 to 10% by weight of the composition.
  • the oil phase of the sunscreen compositions of the present invention which are water-in-oil or oil-in- water emulsions may comprise:
  • hydrocarbon oils such as paraffin or mineral oils
  • waxes such as beeswax or paraffin wax
  • natural oils such as sunflower oil, apricot kernel oil, shea butter or jojoba oil
  • silicone oils such as dimethicone, cyclomethicone or cetyldimethicone
  • fatty acid esters such as isopropyl palmitate or isopropyl myristate
  • fatty alcohols such as cetyl alcohol or stearyl alcohol; or g) mixtures thereof.
  • the oil phase comprises 5 to 60%- by weight of the composition. In preferred oil-in-water sunscreen compositions of the present invention, the oil phase comprises 10 to 30% by weight of the composition.
  • the emulsifiers used may be any emulsifiers known in the art for use in water-in-oil or oil-in-water emulsions. It has been found that particularly effective water-in-oil sunscreen compositions can be prepared by using an emulsifier or mixture of emulsifiers selected from:
  • ethoxylated fatty alcohols for example the emulsifier available commercially under the trade name Brij (ICI) ;
  • ethoxylated fatty acids and their esters such as ethoxylated stearates, for example the emulsifier available commercially under the trade name Myrj (ICI);
  • sorbitan esters such as the emulsifier available commercially under the trade name Span (ICI) ;
  • ethoxylated sorbitan esters such as the emulsifier available commercially under the trade name Tween (ICI);
  • e) ethoxylated mono-di- and tri-glycerides for example the emulsifier available commercially under the trade name Arlatone (ICI) ;
  • silicon emulsifiers such as silicone polyols, available commercially for example under the trade name Abil WS08;
  • anionic emulsifiers for example cetylstearyl s
  • the amount of emulsifier present in the water-in- oil compositions of the present invention is preferably in the range 1 to 15%.
  • Particularly effective oil-in-water sunscreen compositions can be prepared by using an emulsifier or mixture of emulsifiers selected from known cosmetically acceptable emulsifiers which include:
  • fatty acid soaps such as potassium stearate
  • ethoxylated fatty alcohols for example the emulsifier available commercially under the trade name Brij (ICI)
  • sorbitan esters for example the emulsifier available commercially under the trade name Span (ICI)
  • ethoxylated sorbitan esters for example the emulsifier available commercially under the trade name Tween (ICI)
  • e) ethoxylated fatty acid esters such as ethoxylated stearates, for example the emulsifier available commercially under the trade name Myrj (ICI)
  • f) ethoxylated mono-, di-, and tri-glycerides for example the emulsifier available commercially under the trade name Arlatone (ICI) ; or g) mixtures thereof.
  • the amount of emulsifier present in the oil-in-water compositions of the present invention is preferably in the range 1 to 10%.
  • the sunscreen compositions of the present invention may additionally comprise other components which will be well known to those skilled in the art for example emollients such as isopropyl myristate or a triglyceride of a fatty acid (e.g. lauric triglyceride or capric/ caprylic triglyceride) , oisturisers such as D- panthen-ol, humectants such as glycerin or 1,3-butylene- glycol, antioxidants such as DL-A-tocopheryl-acetate or butylated hydroxytoluene, emulsion stabilising salts such as sodium chloride, sodium citrate or magnesium sulphate / film formers to assist spreading on the surface of the skin such as alkylated polyvinyl- pyrrolidone, preservatives such as bronopol, sodium dehydroacetate, polyhexamethylenebiguanide hydro- chloride, isothiazolone or diazo
  • compositions comprising coloured titanium dioxide particles, coloured zinc oxide particles, and mixtures thereof.
  • compositions containing mixtures of titanium dioxide and zinc oxide particles which have not been coloured as described herein are described in British Patent Specification 2,184,356 and European Patent Application 433086.
  • the sunscreen compositions of the present invention described hereinbefore provide adequate protection against both UVA and UVB radiation in a composition which is aesthetically pleasing to the user, thus overcoming the problem of a blue-white tint visible on the skin after application of sunscreens containing titanium dioxide which has not been coloured in this way.
  • Preferred sunscreen compositions are substantially transparent when applied to the skin.
  • a further aspect of the present invention is the use of the coated titanium dioxide particles and/or the coated zinc oxide particles described hereinbefore in cosmetic applications such as face powders, blush powders, eyeshadow powders, lipsticks, mascara, nail polish and foundation creams.
  • the advantage -conferred by colouring such products with the said coated particles is to impart protection from the sun's rays or other UV sources when the products are applied to the body, without detracting from the aesthetic effect of the cosmetics.
  • a further advantage conferred by colouring such products with the said coated particles is the achievement, on application of the product to the body, of a substantially transparent colour which is preferable in 'natural look' type cosmetics.
  • Each cosmetic and toiletry composition may additionally comprise any other cosmetically approved colourant.
  • sunscreening agents may be incorporated into each cosmetic and toiletry composition of the present invention.
  • suitable further sunscreening agents include:
  • p-aminobenzoic acids, esters and derivatives for example, 2-ethylhexyl p-dimethylaminobenzoate, or the octyl ester of p-aminobenzoic acid
  • methoxycinnamate esters for example, 2-ethylhexyl p-methoxycinnamate, 2-ethoxyethyl p-methoxy ⁇ cinnamate or ⁇ , ⁇ -di-(p-methoxy-cinnamoyl) - ⁇ '- (2- ethylhexanoyl)glycerin
  • benzo-phenones for example, oxybenzone
  • dibenzoylmethanes for example, dibenzoylmethanes, and e) salicylate esters .
  • Any additional sunscreening agent is present in an amount from 0.1 to 10% by weight of the composition.
  • a further aspect of the present invention provides a cosmetic or toiletry composition comprising 0.05 to 25% by weight of the coated particles of the present invention together with a cosmetically acceptable diluent or carrier.
  • the cosmetic or toiletry composition may be: a) a face powder composition comprising 0.1 to 15% by weight of the metal oxide particles,
  • a blush powder composition comprising 0.5 to 15% by weight of the metal oxide particles
  • an eyeshadow powder composition comprising 0.5 to 15% by weight of the metal oxide particles
  • a pearly lipstick composition comprising 0.5 to 6% by weight of the metal oxide particles
  • a non-pearly lipstick composition comprising 2 to 8% by weight of the metal oxide particles
  • a mascara composition comprising 0.5 to 15% by weight of the metal oxide particles
  • a nail polish base composition comprising 0.2 to 5% by weight of the metal oxide particles
  • a foundation cream composition comprising 0.5 to 25% by weight of the metal oxide particles.
  • the metal oxide particles in the above compositions may be :
  • compositions of the present invention may additionally comprise other components which will be well known to those skilled in the art.
  • Hydroxyethylcellulose (sold under the trade name Natrosol 250HHR) 0.5
  • Glyceryl Monostearate (sold under the trade name Monostearin NSE) _ 2.0 8. Triglyceride of saturated C10-C18 fatty acids (sold under the trade name Softisan 100) 1.0
  • the emulsion is prepared by dissolving components 2-4 in the water and dispersing into this components 1 and 5 whilst at 70°C. Components 6-11 are then heated together to 70-75°C, added to the water phase using a high shear mixer/homogeniser (Silverson) . After 5-10 minutes the product is stir cooled. The resultant cream is tan coloured and after application would leave a degree of whiteness less than would be expected for a product containing 5% of this grade of titanium dioxide.
  • a sunscreen composition comprising the following constituents may be prepared:
  • Hydroxyethylcellulose (sold under the trade name Natrosol 250HHR) 0.5
  • Microfine Titanium Dioxide (sold under the trade name UV-Titan M210) 10.0
  • Basic Brown 17 dye (sold under the trade name Arianor Sienna Brown) 0.025
  • a sunscreen composition comprising the following constituents may be prepared: % w/w
  • Hydroxyethylcellulose (sold under the trade name Natrosol 250HHR) 0.5
  • Pentaerythrityl Tetraisostearate (sold under the trade name Crodamol PTIS) 2.0
  • Microfine Titanium Dioxide (sold under the trade name UV-Ti an M210) 5.0
  • Components 2, 12 and 13 are dissolved in the water and heated to 70°C.
  • Components 1, 10 and 11 are then dispersed into the water phase using a high shear mixer/homogeniser (Silverson) .
  • the remaining raw materials are heated together to 70-75°C and then added to the water phase with further high shear mixing. After 5-10 minutes the emulsion is stir cooled.
  • the resultant cream is tan coloured and after application would leave a degree of whiteness less than would be expected for a product containing 5% of this grade of titanium dioxide and 5% of this grade of zinc oxide.
  • Coated titanium dioxide particles comprising the following constituents may be prepared:
  • Microfine Titanium Dioxide (sold under the trade name UV-TITAN M210) 96
  • Cationic dye or combination of cationic dyes for example FD and C Green number 3, Basic Blue 99, Basic Red 76, Basic Brown 17, Basic Brown 16, Basic Yellow 57,
  • Component 2 is dissolved in water, and component 1 is dispersed into this solution. Filtration of the resulting mixture yields highly coloured titanium dioxide particles which are then dried and milled to a powder. -- Example 5
  • Coated zinc oxide particles comprising the following constituents may be prepared:
  • Cationic dye or combination of cationic dyes for example FD and C Green number 3, Basic Blue 99, Basic Red 76, Basic Brown 17, Basic Brown 16, Basic Yellow 57,
  • Component 2 is dissolved in water, and component 1 is dispersed into this solution. Filtration of the resulting mixture yields highly coloured zinc oxide particles which are then dried and milled to a powder.
  • a face powder composition comprising the following constituents may be prepared: w/w 1. Magnesium or Calcium Stearate
  • a face powder composition comprising the following constituents may be prepared:
  • a blush powder composition comprising the following constituents may be prepared:
  • a blush powder composition comprising the following constituents may be prepared: % w/w
  • An eyeshadow powder composition comprising the following constituents may be prepared:
  • a pearly lipstick composition comprising the following constituents may be prepared:
  • Triglycerides of capric and caprylic acids sold under the trade name
  • a non-pearly lipstick composition comprising the following constituents may be prepared:
  • a mascara composition comprising the following constituents may be prepared:
  • Film former comprising ammonium acrylates copolymer, propylene glycol and potassium octoxynol-12 phosphate and non-oxynol-10 (sold under the trade name Syntran 5170) 10
  • a nail polish base composition comprising the following constituents may be prepared:
  • a foundation cream composition comprising the following constituents may be prepared: % w/w
  • Colour Paste comprising coated Microfine Titanium Dioxide powder, formed in a similar manner to that described in Example 4, 50%, in
  • a foundation cream composition comprising the following constituents may be prepared:
  • Colour Paste comprising coated Microfine Zinc Oxide powder, formed in a similar manner to that described in Example 5, 50%, in 1,3-butylene glycol, 50%).

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  • Crystallography & Structural Chemistry (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Cosmetics (AREA)

Abstract

L'invention décrit la préparation de particules d'oxyde métallique enrobées avec un colorant, cet enrobage constituant de 0,01 à 5 % en poids des particules enrobées et l'utilisation de telles particules dans des formulations cosmétiques et dans des formulations destinées aux soins corporels.
PCT/EP1993/001178 1992-05-16 1993-05-12 Particules enrobees WO1993023482A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929210517A GB9210517D0 (en) 1992-05-16 1992-05-16 Coated particles
GB9210517.0 1992-05-16

Publications (1)

Publication Number Publication Date
WO1993023482A1 true WO1993023482A1 (fr) 1993-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/001178 WO1993023482A1 (fr) 1992-05-16 1993-05-12 Particules enrobees

Country Status (3)

Country Link
AU (1) AU4067193A (fr)
GB (1) GB9210517D0 (fr)
WO (1) WO1993023482A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998052525A1 (fr) * 1997-05-20 1998-11-26 Soltec Research Pty. Ltd. Produit antisolaire
WO1999024001A1 (fr) * 1997-11-10 1999-05-20 The Procter & Gamble Company Compositions pour le soin de la peau et procede permettant d'ameliorer l'aspect de la peau
US6013270A (en) * 1998-04-20 2000-01-11 The Procter & Gamble Company Skin care kit
WO2000012053A2 (fr) * 1998-09-01 2000-03-09 Amway Corporation Compositions cosmetiques et leurs procedes de fabrication
AU730661B2 (en) * 1997-05-20 2001-03-08 Connetics Australia Pty Ltd Sunscreen composition
WO2013173336A1 (fr) * 2012-05-15 2013-11-21 Basf Se Poudre d'oxyde de zinc facilement formulée

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9210516D0 (en) * 1992-05-16 1992-07-01 Boots Co Plc Coated particles

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Publication number Priority date Publication date Assignee Title
EP0266247A1 (fr) * 1986-10-10 1988-05-04 Rhone-Poulenc Chimie Pigments colorés, notamment pigments magnétiques, leurs procédés de préparation et leurs applications, notamment à la préparation de poudres de développement
EP0433086A1 (fr) * 1989-12-15 1991-06-19 JOHNSON & JOHNSON CONSUMER PRODUCTS, INC. Composition anti-solaire
WO1993010190A1 (fr) * 1991-11-15 1993-05-27 Kuehnle Manfred K Pigments couleurs monodisperses synthetiques, pour la coloration de milieux tels qu'encres d'impression, et procede et appareil pour la fabrication de ces pigments

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266247A1 (fr) * 1986-10-10 1988-05-04 Rhone-Poulenc Chimie Pigments colorés, notamment pigments magnétiques, leurs procédés de préparation et leurs applications, notamment à la préparation de poudres de développement
EP0433086A1 (fr) * 1989-12-15 1991-06-19 JOHNSON & JOHNSON CONSUMER PRODUCTS, INC. Composition anti-solaire
WO1993010190A1 (fr) * 1991-11-15 1993-05-27 Kuehnle Manfred K Pigments couleurs monodisperses synthetiques, pour la coloration de milieux tels qu'encres d'impression, et procede et appareil pour la fabrication de ces pigments

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* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 9114, Derwent Publications Ltd., London, GB; Class A60, AN 91-097797 *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 419 (C-637)18 September 1989 *
PATENT ABSTRACTS OF JAPAN vol. 4, no. 113 (C-21)13 August 1980 *
PATENT ABSTRACTS OF JAPAN vol. 4, no. 42 (C-5)3 April 1980 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU730661B2 (en) * 1997-05-20 2001-03-08 Connetics Australia Pty Ltd Sunscreen composition
WO1998052525A1 (fr) * 1997-05-20 1998-11-26 Soltec Research Pty. Ltd. Produit antisolaire
US6267949B1 (en) 1997-05-20 2001-07-31 Soltec Research Pty Ltd. Sunscreen composition
WO1999024001A1 (fr) * 1997-11-10 1999-05-20 The Procter & Gamble Company Compositions pour le soin de la peau et procede permettant d'ameliorer l'aspect de la peau
US5997887A (en) * 1997-11-10 1999-12-07 The Procter & Gamble Company Skin care compositions and method of improving skin appearance
AU752126B2 (en) * 1997-11-10 2002-09-05 Procter & Gamble Company, The Skin care compositions and method of improving skin appearance
US6013270A (en) * 1998-04-20 2000-01-11 The Procter & Gamble Company Skin care kit
US6132739A (en) * 1998-09-01 2000-10-17 Amway Corporation Makeup compositions and methods of making same
WO2000012053A3 (fr) * 1998-09-01 2000-06-29 Amway Corp Compositions cosmetiques et leurs procedes de fabrication
WO2000012053A2 (fr) * 1998-09-01 2000-03-09 Amway Corporation Compositions cosmetiques et leurs procedes de fabrication
WO2013173336A1 (fr) * 2012-05-15 2013-11-21 Basf Se Poudre d'oxyde de zinc facilement formulée
US9592187B2 (en) 2012-05-15 2017-03-14 Basf Se Easily formulated zinc oxide powder
US10058489B2 (en) 2012-05-15 2018-08-28 Basf Se Easily formulated zinc oxide powder

Also Published As

Publication number Publication date
AU4067193A (en) 1993-12-13
GB9210517D0 (en) 1992-07-01

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