STABLE MULTIPLE EMULSIONS

WIPO Patent Application WO1992018227

A3

Stable multiple emulsions contain a mixture of emulsifiers consisting of (i) a first, hydrophobic emulsifier (emulsifier A) or several such emulsifiers mixed, having the following properties: it must be highly soluble in the oil phase of the emulsion at the manufacturing temperature of the emulsion; it may not be isotropically soluble in water below approximately 50 DEG ; it may be isotropically soluble in the water at temperatures between approximately 50 DEG and the manufacturing temperature of the emulsion; it must act primarily as a W/O emulsifier at temperatures between approximately 50 DEG and the manufacturing temperature of the emulsion; and (ii) a second, hydrophilic emulsifier (emulsifier B) or several such emulsifiers mixed, having the following properties: it must be isotropically soluble in water; its solubility at temperatures between approximately 50 DEG and the manufacturing temperature of the emulsion must be substantially stable.

DAHMS GERD (DE)
GOHLA SVEN H (DE)
KROEPKE RAINER (DE)
NIELSEN JENS (DE)

PCT/DE1992/000231

May 27, 1993

March 19, 1992

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BEIERSDORF AG (DE)

A61K8/00; A61K8/72; A61K8/06; A61K8/36; A61K8/37; A61K8/39; A61K8/60; A61K8/73; A61K8/92; A61K8/97; A61K9/113; A61Q3/00; A61Q3/02; A61Q19/00; B01J13/00; C09K23/00; C09K23/42; A61Q17/00; A61Q17/04; (IPC1-7): B01F/

EP0391124A2	1990-10-10
EP0174377A1	1986-03-19
FR2326914A1	1977-05-06
EP0166946A1	1986-01-08

DATABASE WPIL Week 4185, Derwent Publications Ltd., London, GB; AN 85-252689 & JP,A,60 166 604 (KOBAYASHI KOSE KK) 29. August 1985

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