EP 0078866 B1 19851030 - FORMATION OF COATINGS ON ALUMINIUM SURFACES
Title (en)
FORMATION OF COATINGS ON ALUMINIUM SURFACES
Publication
Application
Priority
- EP 81201255 A 19811110
- JP 6253980 A 19800512
Abstract (en)
[origin: EP0078866A1] 1. Process for the formation of coatings on surfaces of aluminum and alloys thereof by means of aqueous acidic solutions containing phosphate ions, at least one di-to-hexaester of phosphoric acid and inositol and/or alkali metal or alkaline earth metal salts thereof as well as at least one titanium and/or zirconium compound, characterized in that the surface is brought in contact with a solution having a pH-value from 2 to 6 and containing in addition at least one pyrazole of the formula see diagramm : EP0078866,P6,F1 wherein X, Y and Z are the same or different functional groups, such as hydrogen hydroxy-, alkyl-, acyl-, amino- or nitro groups.
IPC 1-7
IPC 8 full level
B05D 3/10 (2006.01); C23C 22/08 (2006.01); C23C 22/36 (2006.01)
CPC (source: EP)
C23C 22/08 (2013.01); C23C 22/361 (2013.01)
Designated contracting state (EPC)
BE DE FR IT NL SE
DOCDB simple family (publication)
EP 0078866 A1 19830518; EP 0078866 B1 19851030; JP S56163280 A 19811215; JP S5839232 B2 19830829
DOCDB simple family (application)
EP 81201255 A 19811110; JP 6253980 A 19800512