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1. EP0048718 - COMPOSITION FOR INHIBITING CORROSION OF METAL SURFACES

Office
European Patent Office
Application Number 81900466
Application Date 22.12.1980
Publication Number 0048718
Publication Date 07.04.1982
Publication Kind B2
IPC
B05D 3/10
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
10by other chemical means
C23C 22/37
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
05using aqueous solutions
06using aqueous acidic solutions with pH < 6
34containing fluorides or complex fluorides
37containing also hexavalent chromium compounds
CPC
C23C 22/37
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
05using aqueous solutions
06using aqueous acidic solutions with pH less than 6
34containing fluorides or complex fluorides
37containing also hexavalent chromium compounds
Applicants J.M. ELTZROTH & ASSOCIATES, INC
Inventors KRIPPES, WILLIAM DONALD
Designated States
Priority Data 06133955 25.03.1980 US
Title
(DE) VERFAHREN ZUM KORROSIONSSCHUTZ VON METALLOBERFLAECHEN.
(EN) COMPOSITION FOR INHIBITING CORROSION OF METAL SURFACES
(FR) PROCEDE SERVANT A EMPECHER LA CORROSION DE SURFACES METALLIQUES.
Abstract
(EN)
No-rinse compositions and process for inhibiting corrosion of ferrous or non-ferrous metal surfaces and for producing a surface to which synthetic resin coating compositions will adhere so that the resultant coatings have satisfactory impact and bending resistance, together with resistance to creeping corrosion between the metal and the dried resin coating.

(FR)
Compositions sans rincage et procede servant a empecher la corrosion de surfaces metalliques ferreuses ou non ferreuses et a produire une surface a laquelle des compositions de revetement en resine synthetique peuvent adherer de maniere que les revetements resultant possedent une resistance satisfaisante a l"impact et a la flexion, ainsi qu"une resistance a la corrosion capillaire entre le metal et le revetement en resine sechee.