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US 4,040,857 AGranted
Non-Newtonian pharmaceutical compositions
AssigneePetrolite Corporation
InventorKenneth J. Lissant
Life of this patent
Estimating the term…
Abstract
Non-Newtonian cosmetic, nutritive and pharmaceutical compositions as exemplified by thixotropic high internal phase ratio emulsions of cosmetic, nutritive and pharmaceutical agents.
Claims10
A pharmaceutical thixotropic high internal phase ratio emulsion characterized by the presence of a pharmaceutical agent therein,
- said thixotropic high internal phase ratio emulsion having the characteristics of a solid when at rest and the characteristics of a liquid when a force is exerted on it, the emulsion having (1) an emulsifying agent, (2) a pharmaceutically acceptable emulsifiable oil, and (3) a liquid pharmaceutically acceptable non-oil,
- said thixotropic high internal phase ratio emulsion being selected from the group consisting of (1) an oil-in-non-oil emulsion and (2) a non-oil-in-oil emulsion,
- the internal phase of said emulsion being present in an amount of at least 80% by volume of the emulsion.
Dependencies are inferred from the claim text.