Stabilization of vitamins in water-in silicone oil (W/O)...

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form

Reexamination Certificate

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Details

C424S401000, C514S458000, C514S725000, C514S251000, C514S276000, C524S862000

Reexamination Certificate

active

06861061

ABSTRACT:
A water-in-oil (W/O) emulsion with a discontinuous aqueous phase dispersed in a continuous oil phase has in the continuous oil phase a linear silicone polyether, an α,ω-diene crosslinked silicone elastomer, and a nonionic organic emulsifier. The W/O emulsion is otherwise free of silicone elastomers prepared using unsaturated compounds containing silicon atoms. Either the discontinuous aqueous phase of the W/O emulsion or the continuous oil phase of the W/O emulsion contains a water soluble or oil soluble active ingredient such as a vitamin.

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Remington's Pharmaceutical Sciences, 18th ed., 1990, p. 1314.

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