EP 0257671 B1 19920415 - PROCESS FOR REMOVING NIOBIUM-CONTAINING COATINGS FROM A SUBSTRATE
Title (en)
PROCESS FOR REMOVING NIOBIUM-CONTAINING COATINGS FROM A SUBSTRATE
Publication
Application
Priority
FR 8611001 A 19860725
Abstract (en)
[origin: US4950359A] Cleaning baths for the removal of a coating containing niobium on a substrate, consisting of an aqueous solution of hydrogen peroxide and of alkali metal hydroxide. The coating is treated with the bath, to remove it from the substrate by dissolving.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
US 4950359 A 19900821; AT E74971 T1 19920515; BR 8605611 A 19880329; DE 3778246 D1 19920521; EP 0257671 A1 19880302; EP 0257671 B1 19920415; FR 2601968 A1 19880129; FR 2601968 B1 19890414; JP S6335787 A 19880216
DOCDB simple family (application)
US 39675489 A 19890817; AT 87201347 T 19870714; BR 8605611 A 19861113; DE 3778246 T 19870714; EP 87201347 A 19870714; FR 8611001 A 19860725; JP 18532887 A 19870724