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Method and compositions for improving appearance of skin

  • US 9,283,154 B2
  • Filed: 03/25/2015
  • Issued: 03/15/2016
  • Est. Priority Date: 01/19/2010
  • Status: Active Grant
First Claim
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1. A method for making a composite particulate in fused agglomerate form and which is not a collapsed microsphere having a portion comprised of at least one colorant and a portion comprised of at least one clear or translucent thermoplastic material comprising the steps of:

  • (a) combining one or more colorants in particulate form with polymethylmethacrylate (PMMA) in the form of solid spheres;

    (b) adding solvent in an amount sufficient to swell the PMMA and cause the fused agglomerates of colorant and PMMA to form;

    (c) removing the solvent and causing the mixture to dry,(d) subjecting the dried mixture to milling to form fused agglomerates having a particle size ranging from 1 to 100 microns.

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