EP 0692957 A1 19960124 - MULTIPLE W/O/W EMULSION PREPARATION PROCESS
Title (en)
MULTIPLE W/O/W EMULSION PREPARATION PROCESS
Title (de)
VERFAHREN ZUR HERSTELLUNG MULTIPLER W/O/W-EMULSIONEN
Title (fr)
PROCEDE DE PREPARATION D'EMULSIONS MULTIPLES EAU/HUILE/EAU
Publication
Application
Priority
- DE 4311445 A 19930407
- EP 9400996 W 19940330
Abstract (en)
[origin: US5714154A] PCT No. PCT/EP94/00996 Sec. 371 Date Dec. 20, 1995 Sec. 102(e) Date Dec. 20, 1995 PCT Filed Mar. 30, 1994 PCT Pub. No. WO94/22414 PCT Pub. Date Oct. 13, 1994A process for the production of multiple w/o/w emulsions in which a) a mixture of an oil and a lipophilic emulsifier I comprising glycerol and/or oligoglycerol or polyglycerol fatty acid esters is initially processed with intensive shearing to form a w/o pre-emulsion A, and b) the w/o pre-emulsion A is then further treated with an aqueous emulsifier II comprising adducts of ethylene oxide with fatty alcohols and/or sterols and, optionally, fatty alcohols, wherein the treatment is accompanied by gentle shearing; and to the resulting multiple w/o/w emulsions and their use in the preparation of cosmetic and pharmaceutical products.
IPC 1-7
IPC 8 full level
A61K 9/107 (2006.01); A61K 8/06 (2006.01); A61K 8/23 (2006.01); A61K 8/31 (2006.01); A61K 8/34 (2006.01); A61K 8/37 (2006.01); A61K 8/39 (2006.01); A61K 8/92 (2006.01); A61K 9/113 (2006.01); A61Q 19/00 (2006.01); B01J 13/00 (2006.01); C09K 23/00 (2022.01)
CPC (source: EP US)
A61K 8/066 (2013.01 - EP US); A61K 9/113 (2013.01 - EP US); A61Q 19/00 (2013.01 - EP US); C09K 23/018 (2022.01 - EP US); A61Q 5/02 (2013.01 - EP US); A61Q 19/10 (2013.01 - EP US)
Citation (search report)
See references of WO 9422414A1
Designated contracting state (EPC)
DE ES FR
DOCDB simple family (publication)
US 5714154 A 19980203; DE 4311445 C1 19941006; EP 0692957 A1 19960124; JP H08508202 A 19960903; WO 9422414 A1 19941013
DOCDB simple family (application)
US 53283695 A 19951220; DE 4311445 A 19930407; EP 9400996 W 19940330; EP 94913085 A 19940330; JP 52167194 A 19940330