EP 1116803 A3 20030502 - Method of pickling aluminium can bodies
Title (en)
Method of pickling aluminium can bodies
Title (de)
Verfahren zum Beitzen von Aluminiumdosen
Title (fr)
Procédé pour le décapage de boîtes en aluminium
Publication
Application
Priority
- JP 2000003623 A 20000112
- JP 2001000149 A 20010104
Abstract (en)
[origin: EP1116803A2] This invention provides a method of pickling an aluminum can body comprising ejecting a pickling agent from a tank against an aluminum can body caused to traverse said tank overhead to clean them and recycling the used agent to said tank, wherein said pickling agent is an acidic aqueous solution containing (A) a polyethylene glycol type detergent nonionic surfactant having an HLB value of 14 to 18 and (B) a low-foaming nonionic surfactant having an HLB value of 2 to 12, the concentration of (A) is 100 to 5000 ppm and the ratio of (A) to (B) is 10:90 to 90:10, and the pickling agent in the tank is withdrawn out of the system from below the agent level.
IPC 1-7
IPC 8 full level
B08B 3/02 (2006.01); B08B 3/08 (2006.01); B08B 9/30 (2006.01); B65D 1/00 (2006.01); C11D 1/72 (2006.01); C11D 1/722 (2006.01); C11D 17/08 (2006.01); C23G 1/12 (2006.01); C23G 3/00 (2006.01)
CPC (source: EP)
C23G 1/125 (2013.01); C23G 3/00 (2013.01)
Citation (search report)
- [X] WO 9638238 A1 19961205 - HENKEL CORP [US], et al
- [X] WO 9502079 A1 19950119 - HENKEL CORP [US]
- [X] US 4124407 A 19781107 - BINNS ROBERT E
- [X] US RE27662 E 19730612
- [A] US 5259960 A 19931109 - BECK LESLIE M [US], et al
- [PX] EP 0976852 A1 20000202 - NIPPON PAINT CO LTD [JP]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1116803 A2 20010718; EP 1116803 A3 20030502; JP 2001262383 A 20010926
DOCDB simple family (application)
EP 01400048 A 20010110; JP 2001000149 A 20010104