Coated cosmetic powder
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United States of America Patent
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Issued Date -
Sep 30, 2004
app pub date -
Mar 3, 2004
filing date -
Mar 4, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention refers to a coated cosmetic powder, preferable for coloured cosmetic products, in particular coated with certain siloxane resin polymers, and also refers to a cosmetic composition which contains said coated cosmetic powder. The cosmetic powder is constituted by a powder phase coated with silsesquioxane homopolymers and/or copolymers having an average siloxane unit of the general formula R.sup.1.sub.nSiO.sub.(4-n)/2, where each R.sup.1 is independently chosen between a hydrogen atom and a monovalent hydrocarbon group comprising 1 to 10 carbon atoms, wherein more than 80 mole % of R.sup.1 are hydrocarbon groups having from 3 to 10 carbon atoms, n is a value from 1.0 to 1.4, more than 60 mole % of the copolymer comprises R.sup.1SiO.sub.3/2 units, and having a hydroxyl or alkoxy content from 0.2 to 10% by weight.
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