EP 0675972 A4 19951102 -
Publication
Application
Priority
- US 99546592 A 19921222
- US 9312044 W 19931215
Abstract (en)
[origin: WO9414999A1] The nickel in conventional low zinc and nickel containing phosphate conversion coating compositions can be replaced by substantially smaller concentrations of cupric ions without losing the benefits of quality that motivated the addition of nickel to low zinc phosphating compositions originally; in fact, better alkaline resistance and paint adhesion can be achieved, along with a substantial cost reduction.
IPC 1-7
IPC 8 full level
C23C 22/12 (2006.01); C23C 22/13 (2006.01); C23C 22/18 (2006.01); C23C 22/36 (2006.01)
CPC (source: EP)
C23C 22/12 (2013.01); C23C 22/13 (2013.01); C23C 22/186 (2013.01); C23C 22/362 (2013.01); C23C 22/368 (2013.01)
Citation (search report)
- [XY] FR 2203893 A1 19740517 - FOSFA COL SAS DI A DAL PANE ET [IT]
- [Y] FR 1465983 A 19670113 - PARKER STE CONTINENTALE
- [E] EP 0633950 A1 19950118 - HENKEL KGAA [DE]
- [PX] WO 9322474 A1 19931111 - HENKEL KGAA [DE], et al
- [A] DE 2049350 A1 19710415 - LUBRIZOL CORP
- [A] US 2813812 A 19571119 - SOMERS RICHARD I, et al
- [A] GB 526816 A 19400926 - SAMUEL THOMAS ROBERTS, et al
- [A] EP 0123980 A1 19841107 - AMCHEM PROD [US]
- [A] US 4717431 A 19880105 - KNASTER MARK B [US], et al
- [A] CHEMICAL ABSTRACTS, vol. 80, no. 1, 14 January 1974, Columbus, Ohio, US; abstract no. 6279w, IMAO H.: "Pretreating metal before electrocoating" page 195; & JP S485086 B1
- See references of WO 9414999A1
Designated contracting state (EPC)
AT BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
WO 9414999 A1 19940707; AT E183247 T1 19990815; AU 5848194 A 19940719; BR 9307702 A 19990831; CA 2150545 A1 19940707; CN 1090606 A 19940810; CN 1092245 C 20021009; CZ 164995 A3 19960117; CZ 287997 B6 20010314; DE 69326021 D1 19990916; DE 69326021 T2 19991223; EP 0675972 A1 19951011; EP 0675972 A4 19951102; EP 0675972 B1 19990811; ES 2136726 T3 19991201; JP H08504890 A 19960528; PL 309404 A1 19951002; SG 55084 A1 19981221; ZA 939636 B 19940815
DOCDB simple family (application)
US 9312044 W 19931215; AT 94904428 T 19931215; AU 5848194 A 19931215; BR 9307702 A 19931215; CA 2150545 A 19931215; CN 93119949 A 19931222; CZ 164995 A 19931215; DE 69326021 T 19931215; EP 94904428 A 19931215; ES 94904428 T 19931215; JP 51522794 A 19931215; PL 30940493 A 19931215; SG 1996005336 A 19931215; ZA 939636 A 19931222