Wacker Chemie Ag

Paul Fletcher

Herbert Barthel

Bernard Paul Binks

Amro Dyab

Storage stable multiple emulsions of a polar phase A, a nonpolar phase B and a polar phase A, or of a nonpolar phase B, a polar phase A and a nonpolar phase B, employ particulate solids smaller than 1 &#x3bc;m to stabilize the resulting A/B/Aor B/A/Bmultiple emulsions against coalescence, with the proviso that surface-active substances are present only up to a maximum concentration of less than 0.1 times the critical micelle concentration of the surface-active substances in phase A, A, A. The multiple emulsions have numerous uses including controlled release of active substances from a dispersed phase.

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Hull, United Kingdom

Paul Fletcher