EP 0943701 B1 20070704 - Process and reactive solution for producing a patina
Title (en)
Process and reactive solution for producing a patina
Title (de)
Verfahren und Reaktionslösung zur Erzeugung einer Patina
Title (fr)
Procédé d'obtention d'une patine, et solution reactive de mise en oeuvre du procédé
Publication
Application
Priority
DE 19809904 A 19980307
Abstract (en)
[origin: US6176905B1] By applying a reaction solution containing an aqueous solution of copper salts and salts of inorganic acids, to a pre-oxidized or partially already patinated copper surface, it is possible to produce a patina layer on copper objects, either directly at the construction site or also at the factory. The reaction solution is particularly well-suited for pre-oxidized or partially already patinated copper surfaces. Copper surfaces, which have not been completely green-patinated, or have been damaged, also obtain a uniform patina layer when the reaction solution is used. The reaction solution can be changed in its consistency and adapted to the conditions of use in each case by adding wetting agents or thickeners. The reaction solution can be applied using a brush, roller or spraying device, and can be stored and processed at ambient temperature.
IPC 8 full level
C23C 22/52 (2006.01); C23C 22/63 (2006.01); C23C 22/68 (2006.01)
CPC (source: EP KR US)
C23C 22/63 (2013.01 - EP US); C23F 11/04 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6176905 B1 20010123; AT E366329 T1 20070715; DE 19809904 A1 19990909; DE 59914396 D1 20070816; DK 0943701 T3 20071105; EP 0943701 A1 19990922; EP 0943701 B1 20070704; ES 2286866 T3 20071201; KR 19990077468 A 19991025; PT 943701 E 20070801; SG 75920 A1 20001024
DOCDB simple family (application)
US 26331599 A 19990305; AT 99102955 T 19990213; DE 19809904 A 19980307; DE 59914396 T 19990213; DK 99102955 T 19990213; EP 99102955 A 19990213; ES 99102955 T 19990213; KR 19990006228 A 19990225; PT 99102955 T 19990213; SG 1999001034 A 19990227