EP 0797692 A1 19971001 - NITROGEN-FREE CORROSION INHIBITORS WITH GOOD BUFFERING ACTION
Title (en)
NITROGEN-FREE CORROSION INHIBITORS WITH GOOD BUFFERING ACTION
Title (de)
STICKSTOFFFREIE KORROSIONSINHIBITOREN MIT GUTER PUFFERWIRKUNG
Title (fr)
INHIBITEURS DE CORROSION NON AZOTES PRESENTANT UN BON EFFET DE TAMPONNAGE
Publication
Application
Priority
- DE 4444878 A 19941216
- EP 9504844 W 19951208
Abstract (en)
[origin: US5795372A] PCT No. PCT/EP95/04844 Sec. 371 Date Jun. 16, 1997 Sec. 102(e) Date Jun. 16, 1997 PCT Filed Dec. 8, 1995 PCT Pub. No. WO96/18757 PCT Pub. Date Jun. 20, 1996Nitrogen-free aqueous anticorrosion composition containing a) a carboxylic acid having 6 to 44 carbon atoms; and b) aromatic hydroxy compounds having a pKa value in the range of 7.0 to 11 for the hydroxy group, in a weight ratio of 1:2 to 20:1, in the form of a concentrate to be diluted with water by a factor of between 20 and 200 and in the form of a ready-to-use aqueous preparation that preferably contains 0.2 to 2 wt % component a) and 0.1 to 0.6 wt % component b) and has a pH value in the range of 7 to 11.
IPC 1-7
IPC 8 full level
C23F 11/10 (2006.01); C23F 11/12 (2006.01)
CPC (source: EP US)
C23F 11/10 (2013.01 - EP US); C23F 11/12 (2013.01 - EP US); C23F 11/124 (2013.01 - EP US)
Citation (search report)
See references of WO 9618757A1
Designated contracting state (EPC)
AT BE DE NL SE
DOCDB simple family (publication)
US 5795372 A 19980818; AT E186080 T1 19991115; AU 4260696 A 19960703; DE 4444878 A1 19960620; DE 59507145 D1 19991202; EP 0797692 A1 19971001; EP 0797692 B1 19991027; TR 199501574 A2 19960721; WO 9618757 A1 19960620
DOCDB simple family (application)
US 86010997 A 19970616; AT 95941081 T 19951208; AU 4260696 A 19951208; DE 4444878 A 19941216; DE 59507145 T 19951208; EP 9504844 W 19951208; EP 95941081 A 19951208; TR 9501574 A 19951214