Global Patent Index - EP 0817872 B1

EP 0817872 B1 2000-01-19 - PHOSPHATING PROCESS WITH A METALLIFEROUS RE-RINSING STAGE

Title (en)

PHOSPHATING PROCESS WITH A METALLIFEROUS RE-RINSING STAGE

Title (de)

VERFAHREN ZUR PHOSPHATIERUNG MIT METALLHALTIGER NACHSPÜLUNG

Title (fr)

PROCEDE DE PHOSPHATATION COMPORTANT UNE ETAPE DE RINçAGE FINAL A BASE DE METAL

Publication

EP 0817872 B1 (DE)

Application

EP 96908083 A

Priority

  • DE 19511573 A
  • EP 9601196 W

Abstract (en)

[origin: DE19511573A1] The invention concerns a process for phosphating metal surfaces, wherein phosphating is carried out using a zinc-containing phosphating solution which is nitrite and nickel-free. Rinsing is then optionally carried out, followed by re-rinsing with an aqueous solution having a pH of between 3 and 7 and containing between 0.001 and 10 g/l of one or more of the cations of Li, Cu and Ag.

IPC 1-7 (main, further and additional classification)

C23C 22/83

IPC 8 full level (invention and additional information)

C23C 22/12 (2006.01); C23C 22/83 (2006.01)

CPC (invention and additional information)

C23C 22/83 (2013.01)

Designated contracting state (EPC)

AT BE DE ES FR GB IT NL PT SE

EPO simple patent family

DE 19511573 A1 19961002; AT 189010 T 20000215; AU 5146496 A 19961016; AU 697424 B2 19981008; BR 9607767 A 19990119; CA 2216925 A1 19961003; CN 1079845 C 20020227; CN 1179183 A 19980415; CZ 287867 B6 20010214; CZ 9703061 A3 19980318; EP 0817872 A1 19980114; EP 0817872 B1 20000119; ES 2143186 T3 20000501; HU 9802380 A2 19990201; HU 9802380 A3 19990329; JP 3883571 B2 20070221; JP H11502569 A 19990302; KR 100362549 B1 20030211; MX 9707328 A 19980731; PL 179316 B1 20000831; PL 321960 A1 19980105; PT 817872 E 20000731; SK 128997 A3 19981202; TR 9701061 T1 19980121; US 6090224 A 20000718; US 6395105 B1 20020528; WO 9630559 A1 19961003; ZA 9602504 B 19960930

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