Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2011-03-01
2011-03-01
Fubara, Blessing M (Department: 1613)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S401000, C424S070140
Reexamination Certificate
active
07897176
ABSTRACT:
Provided are a dispersion comprising organic-inorganic hybrid type particles carried thereon with a biologically active substance, wherein the above particles can be obtained by allowing a block copolymer represented by Formula (I):in-line-formulae description="In-line Formulae" end="lead"?PEG-block-poly(carbo) (I)in-line-formulae description="In-line Formulae" end="tail"?(wherein PEG represents a polyethylene glycol segment, and carbo represents a repetitive unit having a carboxylate ion on a side chain) and an aqueous medium system capable of forming hydroxyapatite to coexist with the biologically active substance, and a preparing method for the same.
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Kakizawa Yoshinori
Kataoka Kazunori
Fubara Blessing M
Toudai TLO, Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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