COMPOSITIONS HAVING A PLURALITY OF DISCRETE EMULSIONS
    7.
    发明公开
    COMPOSITIONS HAVING A PLURALITY OF DISCRETE EMULSIONS 有权
    与几个独立的乳液组合物

    公开(公告)号:EP2367520A1

    公开(公告)日:2011-09-28

    申请号:EP09830845.5

    申请日:2009-11-18

    Abstract: A cosmetic composition comprising a first emulsion and a second emulsion and optionally one or more additional emulsions, each of said two or more emulsions being discretely contained within the composition and comprising an inner phase and an outer phase, each of said two or more emulsions being independently a water-in-oil emulsion, an oil-in-water emulsion, an oil-in-oil emulsion, a polyol-in-oil emulsion, a water-in-silicone emulsion, a silicone-in-water emulsion, or a polyol-in-silicone emulsion in physical contact with at least one other emulsion, at least one of said two or more emulsions being visually distinct from the others, and each of said two or more emulsions as well as said composition being independently both physically and visually stable within the composition for at least six months at ambient temperature.

    RHEOLOGIESTEUERUNG VON PICKERING-EMULSIONEN DURCH ELEKTROLYTE
    8.
    发明授权
    RHEOLOGIESTEUERUNG VON PICKERING-EMULSIONEN DURCH ELEKTROLYTE 有权
    Pickering乳液的流变控制由电解质

    公开(公告)号:EP1789170B1

    公开(公告)日:2010-07-14

    申请号:EP05782622.4

    申请日:2005-07-28

    CPC classification number: B01F17/0007 A61K8/06 A61K8/066 A61K8/25 A61Q19/00

    Abstract: The invention relates to oil-in-water (O/W) emulsions which comprise: an oil phase (phase A), consisting of one, optionally more, substantially water-insoluble component(s), an aqueous phase (phase B), comprising optionally additional water-soluble components such as organic compounds such as alcohols, carboxylic acids or other compounds, pyrogenic silicic acid arranged on the oil-water interface and partially silylated in such a manner that the content in the non-silylated surface silanol groups on the silicon dioxide surface ranges between a maximum of 95 % and a minimum of 50 % of the starting silicon dioxide, equivalent to 1.7 to 0.9 SiOH groups per nm2 of the silicic acid surface, the dispersion content of the surface energy gamma-s-D ranging from 30 to 80 mJ/m2, and the specific BET surface area ranging from 30 to 500 m2/g, an electrolyte content in the aqueous phase which is adjusted in such a way that the ionic strength I of the solution is greater 10-6 mol/l, whereby the ionic strength is defined as I = ½*Σci*zi2, wherein ci is the concentration of the ion i in the solution, and zi is the charge of the ion i, the average particle size of the dispersed phase, i.e. the average droplet diameter, measured by laser diffraction, ranges from 0.5 µm to 500 µm, and optionally additional substances such as pigments or preservatives.

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