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  • 1995-1999  (1)
  • 1990-1994  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Use of polymeric and non-polymeric surfactants in o/w emulsion formulation (1995)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of cosmetic science 17 (1995), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: An acrylic/alkyl acrylate co-polymer and a mixture of non-ionic surfactants (sorbitan monostearate and sorbitan monostearate(20)OE) were used to prepare o/w emulsions for cosmetic use. Formulations with optimal performances were obtained by selecting appropriate percentages of components through statistical procedures. The non-polymeric surfactants were seen to affect the stability and appearance of the emulsion, although they were used at low percentages (0.3–0.6%), and were seen to interact with the polymer in different ways. The influence of twelve w/o emulsifiers (alcohol-, glyceryl- and sorbitan-derivatives) on the emulsion was examined and models of stability and thixotropic module were calculated: the thixotropic behaviour of the emulsion depended on the structural characteristics of hydrophilic and hydrophobic moieties of the w/o surfactant molecule.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-2494.1995.tb00105.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Optimization of emulsions (1991)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of cosmetic science 13 (1991), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The optimization of three emulsions with predetermined components was performed by the aid of experimental design. Three different surfactants were compared: the salts of hexadecylhydrogenphosphate with diethanolamine, lysine and arginine respectively. Optimized microemulsions showed quite high stabilities towards centrifugation (30–60 min at 7000 rpm). The results showed that the counter-ion can affect the composition and stability of an emulsion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-2494.1991.tb00562.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Optimization of parameters in the emulsification process by two different methods (1993)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of cosmetic science 15 (1993), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: An O/W emulsion with a lipopeptidic emulsifier was optimized by means of two different methods, specifically by experimental design and by selective variation of the parameters. Two optimized emulsions were obtained; they had similar values of emulsification (time and rate of homogenization) and amounts of components.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméUne émulsion O/E, avec un lipopeptide comme tensioactif, a été optimisée par deux méthodes d'optimisation différentes, notamment par l'experimental design et par la variation selective de certain paramètres. Deux émulsions optimisées ont été ainsi obtenues: ces émulsions ont des valeurs d'emulsification (temp et vitesse d'homogénéisation) et des quantités des composantes très proches.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-2494.1993.tb00571.x
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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