EP 0187597 B1 19890920 - COMPOSITION AND PROCESS FOR COATING METAL SURFACES WITH A CONVERSION COATING OF ZINC PHOSPHATE
Title (en)
COMPOSITION AND PROCESS FOR COATING METAL SURFACES WITH A CONVERSION COATING OF ZINC PHOSPHATE
Publication
Application
Priority
FR 8419709 A 19841221
Abstract (en)
[origin: US4668307A] Chemical conversion bath with zinc characterized by the fact that it comprises, besides the conventional constituents, an effective amount of fluorophosphate ion of the formula: F-PO32- which can be introduced in the form of the corresponding acid, one of its alkali, alkaline-earth or ammonium salts or its zinc salt.
IPC 1-7
IPC 8 full level
C23C 22/36 (2006.01); C23C 22/76 (2006.01)
CPC (source: EP US)
C23C 22/36 (2013.01 - EP US); C23C 22/362 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0187597 A1 19860716; EP 0187597 B1 19890920; AT E46544 T1 19891015; CA 1270730 A 19900626; DE 3573140 D1 19891026; FR 2575188 A1 19860627; FR 2575188 B1 19930212; JP H0129871 B2 19890614; JP S61183477 A 19860816; US 4668307 A 19870526
DOCDB simple family (application)
EP 85402589 A 19851220; AT 85402589 T 19851220; CA 497994 A 19851218; DE 3573140 T 19851220; FR 8419709 A 19841221; JP 28591085 A 19851220; US 81184185 A 19851220