Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2005-01-18
2005-01-18
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S400000, C424S450000, C424S489000, C514S937000, C514S938000
Reexamination Certificate
active
06844009
ABSTRACT:
The invention concerns novel media in the form of complex dispersions, method for preparing same and their uses. Said media consist of a first medium in the form of droplets wherein is dispersed a phase containing organized double layers of surfactants, preferably in the form of multilamellar vesicles, said droplets being in emulsion in a second medium called continuous phase non-miscible with the first medium. Said media can be used as base for cosmetic compositions. They can contain active principles, in particular for controlling their release and/or protecting and/or controlling their pH. They can also be used to make polymer microspheres containing an active principle. They are also useful as antigen vector.
REFERENCES:
patent: 5256422 (1993-10-01), Albert et al.
patent: 6110492 (2000-08-01), Alving et al.
patent: 2079179 (1980-07-01), None
patent: WO 9802144 (1998-01-01), None
Degert Corinne
Laversanne Rene
Poulin Philippe
Roux Didier
Ugazio Stephane
Capsulis
Dennison Schultz Dougherty & MacDonald
Evans Charesse
Page Thurman K.
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