EP 1149185 B1 20040303 - FERRATE CONVERSION COATINGS FOR METAL SUBSTRATES
Title (en)
FERRATE CONVERSION COATINGS FOR METAL SUBSTRATES
Title (de)
FERRATKONVERSIONSSCHICHTEN AUF METALLSUBSTRATEN
Title (fr)
REVETEMENT PAR CONVERSION DE SUBSTRATS METALLIQUES AVEC DU FERRATE
Publication
Application
Priority
- US 9929831 W 19991215
- US 11228698 P 19981215
Abstract (en)
[origin: WO0036182A1] A method employing oxide film conversion coatings prepared using ferrate (VI) as the oxidizing agent is disclosed. Metal substrates or surfaces, such as aluminum, aluminum alloys or other metals, are contacted with an aqueous solution comprising ferrate (VI) anions to form a corrosion resistant conversion coating on the surface thereof. The ferrate anion concentration is preferably between about 0.0166 % and about 1.66 % by weight. The coating process is carried out by dipping, spraying, or painting at temperatures ranging from 25 DEG C to 100 DEG C for a period of time ranging from about 1 second to about 5 minutes.
IPC 1-7
IPC 8 full level
C23C 22/40 (2006.01); C23C 22/42 (2006.01); C23C 22/44 (2006.01); C23C 22/62 (2006.01); C23C 22/66 (2006.01)
CPC (source: EP)
C23C 22/40 (2013.01); C23C 22/42 (2013.01); C23C 22/44 (2013.01); C23C 22/62 (2013.01); C23C 22/66 (2013.01)
Citation (examination)
- US 2850416 A 19580902 - CASTLE JOHN E
- US 2728695 A 19551227 - RUFFORD HARRISON JOHN
- EP 0090512 A1 19831005 - LONDON NUCLEAR LTD [CA]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0036182 A1 20000622; AT E261003 T1 20040315; AT E318943 T1 20060315; AU 2186800 A 20000703; AU 2188800 A 20000703; DE 69915372 D1 20040408; DE 69915372 T2 20050519; DE 69930163 D1 20060427; DE 69930163 T2 20060817; DK 1149185 T3 20040607; EP 1149185 A1 20011031; EP 1149185 B1 20040303; ES 2213403 T3 20040816
DOCDB simple family (application)
US 9929831 W 19991215; AT 99966296 T 19991215; AT 99966319 T 19991215; AU 2186800 A 19991215; AU 2188800 A 19991215; DE 69915372 T 19991215; DE 69930163 T 19991215; DK 99966296 T 19991215; EP 99966296 A 19991215; ES 99966296 T 19991215