EP 2992950 A1 20160309 - Method for producing aqueous emulsions or suspensions
Title (en)
Method for producing aqueous emulsions or suspensions
Title (de)
Verfahren zur Herstellung wässriger Emulsionen oder Suspensionen
Title (fr)
Procédé de production d'émulsions ou de suspensions aqueuses
Publication
Application
Priority
EP 14183319 A 20140903
Abstract (en)
The present invention proposes a method for the production of an aqueous emulsion or suspension, wherein a hydrophobic liquid phase is brought into contact with an aqueous phase in a premixing chamber (38) to form a premix (44), said premixing chamber (38) comprising an inlet (40) from a feed line (32) for a first liquid (12) and at least one inlet (42) from a feed line (34) for at least a second liquid (14), the premix (44) being forced to leave the premixing chamber (38) through a spray element (64) with an orifice (66) therein forming the outlet (68) of the premixing chamber (38), wherein said orifice (66) is configured to spray the premix (44) in a jet (70) and produce shear or cavitation in the premix jet (70), characterized in that the hydrophobic liquid phase and the aqueous phase are fed in a discontinuous manner. The present invention further proposes an apparatus (20) for mixing a first liquid (12) and at least a second liquid (14) by producing shear and/or cavitation. The apparatus (20) may be used for the production of an aqueous emulsion or suspension.
IPC 8 full level
B01F 5/06 (2006.01); B01F 3/08 (2006.01); B01F 3/12 (2006.01); B01F 11/02 (2006.01); B01F 15/02 (2006.01); B01J 19/00 (2006.01)
CPC (source: EP)
B01F 23/41 (2022.01); B01F 23/4111 (2022.01); B01F 23/482 (2022.01); B01F 23/49 (2022.01); B01F 25/4521 (2022.01); B01F 31/81 (2022.01); B01F 35/7174 (2022.01); B01F 35/71755 (2022.01); B01F 23/4146 (2022.01)
Citation (applicant)
- WO 9513787 A2 19950526 - HENKEL KGAA [DE], et al
- US 6479041 B2 20021112 - HUFF RAINER [DE], et al
- US 8517595 B2 20130827 - MORRISON JR LOWEN ROBERT [US], et al
- US 3399031 A 19680827 - MCCARTHY WILLIAM W
- US 4675194 A 19870623 - GAFFNEY BERNARD J [US]
- US 5026167 A 19910625 - BERLINER III SAMUEL [US]
- US 5837272 A 19981117 - FIERRO JR LOUIS ANTHONY [US], et al
- SOFW-JOURNAL, vol. 124, May 1998 (1998-05-01), pages 308 - 313
- SOFW-JOURNAL, vol. 118, May 1992 (1992-05-01), pages 287 - 296
- "International Cosmetic Ingredient Dictionary and Handbook", vol. 2, article "Surfactants"
Citation (search report)
- [XI] US 2011172137 A1 20110714 - COROMINAS FRANCESC [BE], et al
- [XI] US 2004249105 A1 20041209 - NOLTE HANS-JURGEN [DE], et al
- [XI] US 2004209963 A1 20041021 - SCHAFFNER DAVID [CH]
- [XI] US 4996004 A 19910226 - BUECHELER MANFRED [DE], et al
- [A] US 6390115 B1 20020521 - ROHWER EGMONT [ZA], et al
- [A] EP 0958853 A1 19991124 - MARELLI ERNESTO [IT]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 14183319 A 20140903