EP 0859048 A3 19990908 - Process for making surfactant granules
Title (en)
Process for making surfactant granules
Title (de)
Verfahren zur Herstellung von Tensidgranulaten
Title (fr)
Procédé pour la fabrication de granules tensioactifs
Publication
Application
Priority
DE 19702845 A 19970127
Abstract (en)
[origin: EP0859048A2] A method for the preparation of wash- and cleaning-active surfactant granules with bulk weights greater than 600 g/l by granulating surfactant formulations, comprises: (1) solutions of (A) alkyl benzene sulphonate (ABS) and/or alkyl polyglycoside (APG) surfactants and (B) carrier materials chosen from polycarboxylates or inorganic salts (preferably amorphous silicates) in a non-surfactant solvent are simultaneously nebulised through the same nozzle ; and (2) the nebulised solutions are dried in standard dryers, preferably in fluidised bed dryers or a ring mixer dryer with a high rpm, during which the two liquids separate to leave the strongly hygroscopic and tacky active substance at least partially surrounded by the non-tacky carrier material. Also claimed are washing or cleaning agents with bulk weights greater than 600 g/l which contain either (i) more than 60 wt.% ABS, (ii) more than 60 (70) wt.% APG or (iii) at least 10 (20) wt.% end product of the above method.
IPC 1-7
C11D 17/06; C11D 11/00; C11D 3/08; C11D 1/83; C11D 3/37; C11D 3/20
IPC 8 full level
C11D 1/22 (2006.01); C11D 1/66 (2006.01); C11D 1/83 (2006.01); C11D 3/08 (2006.01); C11D 3/20 (2006.01); C11D 3/37 (2006.01); C11D 11/00 (2006.01); C11D 17/00 (2006.01); C11D 17/06 (2006.01)
CPC (source: EP)
C11D 1/22 (2013.01); C11D 1/662 (2013.01); C11D 1/83 (2013.01); C11D 3/2082 (2013.01); C11D 3/2086 (2013.01); C11D 11/0088 (2013.01); C11D 17/0034 (2013.01); C11D 17/065 (2013.01)
Citation (search report)
- [Y] US 3055835 A 19620925 - ALEXANDER MONICK JOHN
- [Y] US 3915903 A 19751028 - WISE RODNEY M
- [Y] WO 9321300 A1 19931028 - HENKEL KGAA [DE], et al
- [A] DE 19524287 A1 19970109 - HENKEL KGAA [DE]
- [A] DE 4408502 A1 19950824 - HENKEL ECOLAB GMBH & CO OHG [DE]
- [A] US 3733278 A 19730515 - VESSEY E
- [A] FR 2372894 A1 19780630 - COLGATE PALMOLIVE CO [US]
- [A] US 2712529 A 19550705 - VICTOR MILLS, et al
- [A] DATABASE WPI Section Ch Week 9120, Derwent World Patents Index; Class D25, AN 91-146245, XP002109362
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0859048 A2 19980819; EP 0859048 A3 19990908; EP 0859048 B1 20031029; AT E253107 T1 20031115; DE 19702845 A1 19980730; DE 59809988 D1 20031204; ES 2210601 T3 20040701
DOCDB simple family (application)
EP 98100768 A 19980117; AT 98100768 T 19980117; DE 19702845 A 19970127; DE 59809988 T 19980117; ES 98100768 T 19980117