EP 0769569 A3 19970917 - Process for stabilisation of a patina layer
Title (en)
Process for stabilisation of a patina layer
Title (de)
Verfahren zur Stabilisierung einer Patinaschicht
Title (fr)
Procédé pour stabiliser d'un revêtement à patine
Publication
Application
Priority
DE 19539158 A 19951020
Abstract (en)
[origin: EP0769569A2] Stabilising of an artificial patina on copper sheet comprising applying a clear coat of water glass and hydroxy cellulose immediately after the patina has been produced.
IPC 1-7
IPC 8 full level
C23C 8/10 (2006.01); C23C 8/80 (2006.01); C23C 22/52 (2006.01); C23C 22/63 (2006.01)
CPC (source: EP US)
C23C 8/10 (2013.01 - EP US); C23C 8/80 (2013.01 - EP US); C23C 22/52 (2013.01 - EP US); C23C 22/63 (2013.01 - EP US)
Citation (search report)
- [A] US 2587216 A 19520226 - MARIO QUADRIO
- [A] US 5344671 A 19940906 - WOTTRICH GUENTHER [DE]
- [A] DATABASE WPI Section Ch Week 8535, Derwent World Patents Index; Class A97, AN 85-213282, XP002035293
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0769569 A2 19970423; EP 0769569 A3 19970917; EP 0769569 B1 20000126; AT E189270 T1 20000215; DE 19539158 A1 19970424; DE 59604282 D1 20000302; DK 0769569 T3 20000613; ES 2143697 T3 20000516; US 5879745 A 19990309
DOCDB simple family (application)
EP 96116132 A 19961009; AT 96116132 T 19961009; DE 19539158 A 19951020; DE 59604282 T 19961009; DK 96116132 T 19961009; ES 96116132 T 19961009; US 73083496 A 19961017