EP 0879876 A1 19981125 - Process for preparation of granular detergent composition or component comprising a water-soluble cationic surfactant
Title (en)
Process for preparation of granular detergent composition or component comprising a water-soluble cationic surfactant
Title (de)
Verfahren zur Herstellung einer körnigen Reinigungsmittelzusammensetzung oder Komponente, die ein wasserlösliches kationisches Tensid enthält
Title (fr)
Procédé de préparation d'une composition détergente granulaire ou d'un composant comprenant un agent tensioactif soluble dans l'eau
Publication
Application
Priority
EP 97201517 A 19970521
Abstract (en)
The invention provides a process which comprises the step of drying an aqueous solution or dispersion, the aqueous solution or dispersion comprising a water-soluble cationic surfactant, in the presence of a drying gas wherein the maximum temperature of the drying gas is less than 250 DEG C. Preferably the drying step is carried out in a co-current spray dryer and the drying gas is air.
IPC 1-7
IPC 8 full level
C11D 1/62 (2006.01); C11D 3/08 (2006.01); C11D 11/02 (2006.01)
CPC (source: EP)
C11D 1/62 (2013.01); C11D 3/08 (2013.01); C11D 11/02 (2013.01)
Citation (search report)
- [A] US 4073735 A 19780214 - RAMACHANDRAN PALLASSANA
- [A] WO 9311212 A1 19930610 - HENKEL KGAA [DE]
- [A] FR 2101555 A5 19720331 - UNILEVER NV
- [A] WO 9004015 A1 19900419 - HENKEL KGAA [DE]
- [A] DE 3437721 A1 19860417 - SUED CHEMIE AG [DE]
- [A] DATABASE WPI Section Ch Week 8209, Derwent World Patents Index; Class A97, AN 82-16388E, XP002045321
- [A] DATABASE WPI Section Ch Week 8107, Derwent World Patents Index; Class D25, AN 81-11000D, XP002045322
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0879876 A1 19981125; AR 015327 A1 20010502; MA 24550 A1 19981231; WO 9853037 A1 19981126
DOCDB simple family (application)
EP 97201517 A 19970521; AR P980102359 A 19980521; IB 9800712 W 19980513; MA 25083 A 19980520