EP 0057334 B1 19850925 - PRETREATMENT PROCESS FOR GALVANIZED METAL PRIOR TO ITS COATING WITH ORGANIC POWDER
Title (en)
PRETREATMENT PROCESS FOR GALVANIZED METAL PRIOR TO ITS COATING WITH ORGANIC POWDER
Publication
Application
Priority
US 22117680 A 19801229
Abstract (en)
[origin: EP0057334A2] This invention relates to a pretreatment process for galvanized metal which, unlike existing processes, was specifically developed for galvanized metal. Because of the natural corrosion protection properties of the zinc cladding of galvanized metal, no additional passivation is necessary as is required with existing processes. Also, the invention relates to the galvanized metal which has been pretreated by the process of this invention prior to application of an organic powder coating. Galvanized metal treated by this pretreatment process prior to coating leads to a uniform coating which is impervious to acid, base and salt solutions, and which will not scratch or flake off on impact.
IPC 1-7
IPC 8 full level
B05D 3/00 (2006.01); B05D 7/14 (2006.01); B32B 15/08 (2006.01); B32B 15/092 (2006.01); C23C 22/08 (2006.01); C23C 26/02 (2006.01); C23F 1/30 (2006.01); C23G 1/02 (2006.01); B05D 3/10 (2006.01)
CPC (source: EP)
B05D 7/14 (2013.01); B05D 3/102 (2013.01); B05D 2350/65 (2013.01); B05D 2401/32 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0057334 A2 19820811; EP 0057334 A3 19821208; EP 0057334 B1 19850925; AT E15775 T1 19851015; AU 548696 B2 19860102; AU 6898781 A 19820708; BR 8101935 A 19821103; CA 1185841 A 19850423; DE 3172403 D1 19851031; DK 145181 A 19820630; DK 156445 B 19890821; DK 156445 C 19900122; ES 500918 A0 19820716; ES 8205884 A1 19820716; GR 75616 B 19840801; IE 51072 B1 19860917; IE 810735 L 19820629; JP H0242906 B2 19900926; JP S57116777 A 19820720; MX 155753 A 19880422; PT 72784 A 19810501; PT 72784 B 19830110; ZA 812177 B 19821229
DOCDB simple family (application)
EP 81400514 A 19810331; AT 81400514 T 19810331; AU 6898781 A 19810401; BR 8101935 A 19810331; CA 374660 A 19810403; DE 3172403 T 19810331; DK 145181 A 19810331; ES 500918 A 19810331; GR 810164548 A 19810401; IE 73581 A 19810331; JP 4732681 A 19810401; MX 18667281 A 19810401; PT 7278481 A 19810401; ZA 812177 A 19810401