Compositions Comprising Pigment Particles Entrapped In Collapsed Polymeric Microspheres, And Methods Of Making The Same
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United States of America Patent
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Issued Date -
Jan 19, 2012
app pub date -
Jan 10, 2011
filing date -
Jan 11, 2010
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Abandoned
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Abstract
Topical compositions containing pigment particles entrapped in microspheres are provided. Each of the microspheres contains a collapsed polymeric shell that has entrapped therein one or more pigment particles. The microsphere-entrapped pigment particles are characterized by enhanced color intensity, improved stability, and better dispersibility, which can readily be used either alone or in combination with other skin active ingredients to form better colored cosmetics.
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