EP 0774016 B1 19990728 - NO-RINSE PHOSPHATISING PROCESS
Title (en)
NO-RINSE PHOSPHATISING PROCESS
Title (de)
PHOSPHATIERVERFAHREN OHNE NACHSPÜLUNG
Title (fr)
PROCEDE DE PHOSPHATAGE SANS RIN AGE FINAL
Publication
Application
Priority
- DE 4433946 A 19940923
- EP 9503619 W 19950914
Abstract (en)
[origin: US5976272A] PCT No. PCT/EP95/03619 Sec. 371 Date Mar. 24, 1997 Sec. 102(e) Date Mar. 24, 1997 PCT Filed Sep. 14, 1995 PCT Pub. No. WO96/09422 PCT Pub. Date Mar. 28, 1996A process for phosphating metal surfaces by treatment with an acidic zinc- and phosphathe-containing solution which does not require rinsing. The metal substrate is contacted with a phosphating solution containing 2 to 25 g/l of zinc ions, 2 to 25 g/l of manganese ions and 50 to 300 g/l of phosphate ions. The solution has a pH value of 1 to 3.6, a free acid content of 0 to 100 points, a total acid content of 40 to 400 points and a ratio of free acid to total acid of 1:4 to 1:20.
IPC 1-7
IPC 8 full level
C23C 22/12 (2006.01); C23C 22/18 (2006.01); C23C 22/36 (2006.01); C23C 22/73 (2006.01)
CPC (source: EP KR US)
C23C 22/12 (2013.01 - EP US); C23C 22/17 (2013.01 - KR); C23C 22/182 (2013.01 - EP US); C23C 22/184 (2013.01 - KR); C23C 22/362 (2013.01 - EP US); C23C 22/365 (2013.01 - KR); C23C 22/76 (2013.01 - KR)
Citation (examination)
UBERSETZUNG VON JP-A-50139039
Designated contracting state (EPC)
AT BE DE ES FR GB IT LU NL SE
DOCDB simple family (publication)
US 5976272 A 19991102; AT E182632 T1 19990815; CA 2200893 A1 19960328; DE 4433946 A1 19960328; DE 59506484 D1 19990902; EP 0774016 A1 19970521; EP 0774016 B1 19990728; ES 2135090 T3 19991016; JP H10505881 A 19980609; KR 100347405 B1 20021205; KR 970706420 A 19971103; WO 9609422 A1 19960328
DOCDB simple family (application)
US 80960697 A 19970324; AT 95932747 T 19950914; CA 2200893 A 19950914; DE 4433946 A 19940923; DE 59506484 T 19950914; EP 9503619 W 19950914; EP 95932747 A 19950914; ES 95932747 T 19950914; JP 51057195 A 19950914; KR 19970701888 A 19970322