Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2007-10-23
2007-10-23
Richter, Johann (Department: 1616)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S070120, C424S455000, C424S617000, C424S641000, C514S063000, C514S492000, C514S494000
Reexamination Certificate
active
10701566
ABSTRACT:
The present invention is hydrophilized powder, wherein the powder is surface treated with polyether-modified silicone having a hydrolyzable silyl group according to the formula (1),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"?wherein R1is an organic group having 1 to 80 carbon atoms, R2is a polyether group according to the following formula (2),in-line-formulae description="In-line Formulae" end="lead"?—CdH2d—O—(C2H4O)e(C3H6O)fR4 (2)in-line-formulae description="In-line Formulae" end="tail"?wherein d, e, and f are integers with 0≦d≦15, 1≦e≦50, and 0≦f≦50,R3is a silyl group having a hydrolyzable group according to the general formula (3),in-line-formulae description="In-line Formulae" end="lead"?—CdH2d—SiR1g(OR5)3-g (3)in-line-formulae description="In-line Formulae" end="tail"?wherein d is as define above and 0≦g≦2, and0.5≦a≦2.5, 0.1≦b≦1.5, and 0.01≦c≦1.5. The invention also provides a composition comprising the powder, an aqueous dispersion comprising the powder, and their application in cosmetics, coatings, and inks.
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Machine Translation of Takeshi et al. JP 09-104833 Apr. 22, 1997.
Kamei Masanao
Tachibana Kiyomi
Arnold Ernst
Birch & Stewart Kolasch & Birch, LLP
Richter Johann
Shin-Etsu Chemical Co. , Ltd.
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