Cosmetic compositions and their use
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United States of America Patent
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Issued Date -
Oct 27, 2005
app pub date -
Dec 29, 2004
filing date -
Apr 23, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a cosmetic composition particularly for the make-up of the facial skin, the lips and the eyelashes. It contains as essential ingredients a particular silicone-containing polyurethane. The particular silicone, used as pre-polymer in the polyurethane of the invention is an alkoxylated, bis-hydroxyalkyl group terminated polydialkylsiloxane, in which the reactive OH-- group is attached to a carbon atom. The balance contains the usual cosmetic excipients, colorants and other cosmetic additives, particularly clays, waxes and solvents. By the use of the particular silicone-containing polyurethane, improved film-forming properties of the composition are obtained, and the composition is transfer-resistant and easy to apply and skin friendly and comfortable in use. By introducing different kind of chain extenders into the silicone-containing polyurethanes, their physical, rheological and cosmetic properties can be tuned according to the formulator's needs.
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