EP 1402083 A1 20040331 - Corrosion protection method for metal surfaces
Title (en)
Corrosion protection method for metal surfaces
Title (de)
Korrosionsschutzverfahren für Metalloberflächen
Title (fr)
Procédé de protection contre la corrosion pour surfaces métalliques
Publication
Application
Priority
- DE 10131723 A 20010630
- EP 0206888 W 20020621
Abstract (en)
[origin: WO03002781A1] The invention relates to an agent and method for carrying out the corrosion protection treatment of a metal surface. The invention is characterized in that the metal surface is brought into contact with a homopolymer or copolymer of vinyl pyrrolidone, whereby the application solution contains: a) 0.02 to 20 g/l phosphoric acid and/or at least one fluoro acid of one or more elements of the group Zr, Ti, Hf and Si or of each of their anions, and; b) 10 to 49.9 mg/l of a homopolymer or copolymer of vinyl pyrrolidone.
IPC 1-7
IPC 8 full level
C23C 22/08 (2006.01); C23C 22/34 (2006.01); C23C 22/36 (2006.01); C23C 22/83 (2006.01)
CPC (source: EP KR US)
C23C 22/08 (2013.01 - EP US); C23C 22/34 (2013.01 - EP KR US); C23C 22/36 (2013.01 - EP US); C23C 22/361 (2013.01 - EP US); C23C 22/83 (2013.01 - EP US)
Citation (search report)
See references of WO 03002781A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03002781 A1 20030109; AT E294259 T1 20050515; BR 0210725 A 20040720; CA 2453138 A1 20030109; CN 1527889 A 20040908; CZ 20033572 A3 20041110; DE 10131723 A1 20030116; DE 50202924 D1 20050602; EP 1402083 A1 20040331; EP 1402083 B1 20050427; ES 2240824 T3 20051016; JP 2004533542 A 20041104; KR 20040043135 A 20040522; MX PA03011369 A 20040701; RU 2004102694 A 20050610; SK 16192003 A3 20040504; US 2004151619 A1 20040805
DOCDB simple family (application)
EP 0206888 W 20020621; AT 02780906 T 20020621; BR 0210725 A 20020621; CA 2453138 A 20020621; CN 02813214 A 20020621; CZ 20033572 A 20020621; DE 10131723 A 20010630; DE 50202924 T 20020621; EP 02780906 A 20020621; ES 02780906 T 20020621; JP 2003508743 A 20020621; KR 20037017270 A 20031230; MX PA03011369 A 20020621; RU 2004102694 A 20020621; SK 16192003 A 20020621; US 73481503 A 20031211