Global Patent Index - EP 0674021 B1

EP 0674021 B1 20001206 - Process for inhibiting metal corrosion in aquous systems

Title (en)

Process for inhibiting metal corrosion in aquous systems

Title (de)

Verfahren zur Verhinderung der Korrosion von Metallen in wässrigen Systemen

Title (fr)

Procédé pour inhiber la corrosion des métaux dans des systèmes aqueux

Publication

EP 0674021 B1 20001206 (DE)

Application

EP 95103622 A 19950314

Priority

DE 4409990 A 19940323

Abstract (en)

[origin: EP0674021A1] Methylene blue (I) is used to inhibit corrosion of metals in aq. systems.

IPC 1-7

C23F 11/16; C23F 11/10; C23F 11/08

IPC 8 full level

C23F 11/08 (2006.01); C23F 11/10 (2006.01); C23F 11/16 (2006.01)

CPC (source: EP)

C23F 11/08 (2013.01); C23F 11/10 (2013.01); C23F 11/165 (2013.01)

Designated contracting state (EPC)

AT BE CH DE GB IT LI NL

DOCDB simple family (publication)

EP 0674021 A1 19950927; EP 0674021 B1 20001206; AT E197970 T1 20001215; DE 4409990 A1 19950928; DE 59508882 D1 20010111

DOCDB simple family (application)

EP 95103622 A 19950314; AT 95103622 T 19950314; DE 4409990 A 19940323; DE 59508882 T 19950314