EP 1230033 A1 20020814 - PROCESS FOR FORMING A PHOSPHATE CONVERSION COATING ON METAL
Title (en)
PROCESS FOR FORMING A PHOSPHATE CONVERSION COATING ON METAL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES PHOPHATKONVERSIONSÜBERZUGS AUF METALL
Title (fr)
PROCEDE DE REALISATION D'UN REVETEMENT DE CONVERSION A BASE DE PHOSPHATE SUR DU METAL
Publication
Application
Priority
- JP 23006099 A 19990816
- US 0022335 W 20000816
Abstract (en)
[origin: WO0112341A1] A metal surface on which a phosphate conversion coating is to be formed and which has been surface conditioned by contact with a liquid surface conditioner composition that contains dispersed fine particles of solid phosphate of at least one divalent or trivalent cations type and an adhesion promoting agent. After such conditioning, a very high quality conversion coating can be formed on the surface by contact with a nickel-free liquid phosphating composition that contains at least acid, zinc cations, and phosphate anions and optionally and preferably also contains other materials.
IPC 1-7
B05D 1/18; B05D 3/10; C23C 22/07; C23C 22/78; C23C 22/13; C23C 22/22; C23C 22/36; C23C 22/44
IPC 8 full level
B05D 3/10 (2006.01); C23C 22/10 (2006.01); C23C 22/12 (2006.01); C23C 22/13 (2006.01); C23C 22/22 (2006.01); C23C 22/36 (2006.01); C23C 22/44 (2006.01); C23C 22/78 (2006.01)
CPC (source: EP)
C23C 22/13 (2013.01); C23C 22/22 (2013.01); C23C 22/368 (2013.01); C23C 22/44 (2013.01); C23C 22/73 (2013.01); C23C 22/78 (2013.01)
Designated contracting state (EPC)
BE DE ES FR GB IT
DOCDB simple family (publication)
WO 0112341 A1 20010222; CA 2381774 A1 20010222; EP 1230033 A1 20020814; EP 1230033 A4 20041208; JP 2001049451 A 20010220; JP 3545974 B2 20040721
DOCDB simple family (application)
US 0022335 W 20000816; CA 2381774 A 20000816; EP 00955545 A 20000816; JP 23006099 A 19990816