Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Phosphorus containing other than solely as part of an...
Reexamination Certificate
2003-01-17
2009-11-03
Richter, Johann R (Department: 1616)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Phosphorus containing other than solely as part of an...
C424S059000, C424S063000, C424S067000, C424S069000, C424S401000, C424S484000, C514S937000, C556S400000
Reexamination Certificate
active
07612051
ABSTRACT:
This invention relates to a powder composition comprising a silicone represented by the following formula (1) comprising an alcoholic hydroxyl group, and a powder, to an oil-based powder composition formed by dispersing this powder composition in an oil, and to a cosmetic material containing these materials.in-line-formulae description="In-line Formulae" end="lead"?R1aR2bR3cSiO(4−a−b−c)/2 (1)in-line-formulae description="In-line Formulae" end="tail"?where, in formula (1), R1are identical or different organic groups selected from alkyl groups, aryl, aralkyl or fluorinated alkyl groups having 1-30 carbon atoms, R2is a substituent having one or more alcoholic hydroxy groups, R3is a group represented by the following general formula (2), and a, b, c, d are integers satisfying the relations:1.0≦a≦2.5, 0.01≦b≦1, 0.001≦c≦1, 1.5≦a+b+c≦2.6, and 0≦d≦500.The powder composition of this invention has little cohesion, excellent dispersibility and excellent stability over time as an oil-based powder composition. Therefore, cosmetics using these materials have excellent stability in use, and excellent stability over time.
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Kamei Masanao
Shimizu Toru
Karpinski Luke E
Millen White Zelano & Branigan P.C.
Richter Johann R
Shin-Etsu Chemical Co. , Ltd.
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