EP 0436408 B1 19950823 - Process and bath for applying protective chrome hexavalent coatings on metallic substrates and trade form of the bath components.
Title (en)
Process and bath for applying protective chrome hexavalent coatings on metallic substrates and trade form of the bath components.
Title (de)
Verfahren und Bad zum Auftragen einer Schutzbeschichtung auf der Basis von sechswertigem Chrom auf Metalloberflächen und Handelsform der Badbestandteilen.
Title (fr)
Procédé et bain pour appliquer un revêtement protecteur à base de chrome hexavalent sur un substrat métallique, et forme commerciale des constituants du bain.
Publication
Application
Priority
FR 8914526 A 19891106
Abstract (en)
[origin: US5259884A] Process comprising a step for the preparation of the metallic substrate by degreasing, possibly followed by mechanical or chemical pickling, a step comprising the use by immersion or spraying of a bath adapted to provide on the metallic substrate the contemplated protective coating and a curing step at high temperature, and characterized by the fact that the above-mentioned bath comprises at least: a metal in the form of particles, chromic acid and/or one of its derivatives as oxidizing agent, at least one hydrosoluble solvent having a high boiling point and selected from those of the aprotic polar type and of the ketonic type, water.
IPC 1-7
IPC 8 full level
C23C 22/24 (2006.01); C23C 22/26 (2006.01); C23C 22/74 (2006.01)
CPC (source: EP US)
C23C 22/74 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE DE ES GB IT NL SE
DOCDB simple family (publication)
US 5259884 A 19931109; AT E126834 T1 19950915; CA 2029381 A1 19910507; DE 69021856 D1 19950928; DE 69021856 T2 19960111; EP 0436408 A1 19910710; EP 0436408 B1 19950823; ES 2077047 T3 19951116; FR 2654117 A1 19910510; FR 2654117 B1 19940204; JP H03294485 A 19911225; JP H07116614 B2 19951213
DOCDB simple family (application)
US 60961990 A 19901106; AT 90403105 T 19901102; CA 2029381 A 19901106; DE 69021856 T 19901102; EP 90403105 A 19901102; ES 90403105 T 19901102; FR 8914526 A 19891106; JP 29909990 A 19901106