Drug – bio-affecting and body treating compositions – Nonspecific immunoeffector – per se ; or nonspecific... – Lipid or oil
Reexamination Certificate
2011-05-17
2011-05-17
Mosher, Mary E (Department: 1648)
Drug, bio-affecting and body treating compositions
Nonspecific immunoeffector, per se ; or nonspecific...
Lipid or oil
C514S939000, C514S937000, C516S054000, C424S400000, C424S184100, C424S204100, C424S234100
Reexamination Certificate
active
07943154
ABSTRACT:
A process is described for the preparation of storage-stable, multiple emulsions of the water/oil/water (W/O/W) type which comprise one or more active ingredients.The process comprises the stepsa) stirring the active ingredient into an aqueous phase,b) emulsifying the aqueous phase by passing the aqueous phase through a large-pored, porous membrane into an oil phase,c) phase inversion of the emulsion from b), by cooling the mixture at a cooling rate of at least 0.3 K/min, where an emulsifier is added either to the aqueous phase in a) or to the oil phase in b) or to both phases.
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Mutter Martina
Oswald Tanja
Schmitz Mark
Stange Olaf
Baker Donelson Bearman Caldwell & Berkowitz
Bayer Technology Services GmnH
Mosher Mary E
Snyder Stuart W
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