EP 0015021 B1 19841003 - PROCESS FOR THE PRETREATMENT OF METAL SURFACES FOR ELECTROPHORETIC DIP PAINTING
Title (en)
PROCESS FOR THE PRETREATMENT OF METAL SURFACES FOR ELECTROPHORETIC DIP PAINTING
Publication
Application
Priority
DE 2907094 A 19790223
Abstract (en)
[origin: US4265677A] A new composition and process provide improved phosphate treatment prior to cathodic electropainting. The surface is contacted with an aqueous acidic zinc phosphate solution having a weight ratio of Zn:PO4 of 1:12-110 and 0.3 to 2.0 g/l fluoborate prior to electropainting.
IPC 1-7
IPC 8 full level
C23C 22/00 (2006.01); C23C 22/36 (2006.01); C23C 22/44 (2006.01); C25D 13/20 (2006.01); C25D 13/00 (2006.01)
CPC (source: EP US)
C23C 22/36 (2013.01 - EP US); C23C 22/362 (2013.01 - EP US); C23C 22/44 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR SE
DOCDB simple family (publication)
EP 0015021 A1 19800903; EP 0015021 B1 19841003; AU 531900 B2 19830908; AU 5580480 A 19800828; CA 1134246 A 19821026; DE 2907094 A1 19800904; DE 3069330 D1 19841108; ES 488871 A0 19811101; ES 8200408 A2 19811101; GB 2046312 A 19801112; IT 1141231 B 19861001; IT 8020102 A0 19800222; JP S55131177 A 19801011; JP S5914113 B2 19840403; US 4265677 A 19810505; ZA 80915 B 19810225
DOCDB simple family (application)
EP 80200097 A 19800205; AU 5580480 A 19800222; CA 346000 A 19800219; DE 2907094 A 19790223; DE 3069330 T 19800205; ES 48887180 A 19800222; GB 8005737 A 19800220; IT 2010280 A 19800222; JP 2214780 A 19800222; US 12450480 A 19800225; ZA 80915 A 19800218