Process for preparing fine emulsions
AssigneeClariant GmbH
InventorsDennis Miller, Torsten Henning, Wiebke Johannpeter, Eva-Maria Wiener
Life of this patent
Estimating the term…
Abstract
The invention relates to fine emulsions comprising at least one W/O emulsifier and at least one hydrophilic component, and to a process for their preparation. The fine emulsions are obtainable by converting a W/O preemulsion comprising at least one W/O emulsifier into an O/W fine emulsion by adding at least one hydrophilic component and, where appropriate, changing the temperature. Suitable W/O emulsifiers are preferably sorbitol esters. The fine emulsions are preferably spray emulsions for cosmetic and pharmaceutical applications.
Claims8
A process for the preparation of fine emulsions, which comprises converting a W/O preemulsion comprising at least one W/O emulsifier into an O/W fine emulsion by adding at least one hydrophilic component and, where appropriate, changing the temperature, wherein the at least one W/O emulsifier is a sorbitol ester.
Dependencies are inferred from the claim text.