Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2013124400) PRETREATING ZINC SURFACES PRIOR TO A PASSIVATING PROCESS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/124400 International Application No.: PCT/EP2013/053522
Publication Date: 29.08.2013 International Filing Date: 22.02.2013
IPC:
C23C 22/00 (2006.01) ,C23C 22/18 (2006.01) ,C23C 22/34 (2006.01) ,C23C 22/60 (2006.01) ,C23C 22/73 (2006.01) ,C23C 22/83 (2006.01) ,B05D 7/14 (2006.01) ,C23C 22/78 (2006.01) ,C23G 1/20 (2006.01)
C CHEMISTRY; METALLURGY
23
COATING 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
C
COATING 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
22
Chemical 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
C CHEMISTRY; METALLURGY
23
COATING 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
C
COATING 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
22
Chemical 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
05
using aqueous solutions
06
using aqueous acidic solutions with pH 6
07
containing phosphates
08
Orthophosphates
18
containing manganese cations
C CHEMISTRY; METALLURGY
23
COATING 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
C
COATING 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
22
Chemical 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
05
using aqueous solutions
06
using aqueous acidic solutions with pH 6
34
containing fluorides or complex fluorides
C CHEMISTRY; METALLURGY
23
COATING 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
C
COATING 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
22
Chemical 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
05
using aqueous solutions
60
using alkaline aqueous solutions with pH 8
C CHEMISTRY; METALLURGY
23
COATING 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
C
COATING 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
22
Chemical 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
73
characterised by the process
C CHEMISTRY; METALLURGY
23
COATING 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
C
COATING 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
22
Chemical 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
82
After-treatment
83
Chemical after-treatment
B PERFORMING OPERATIONS; TRANSPORTING
05
SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
D
PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
7
Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
14
to metal, e.g. car bodies
C CHEMISTRY; METALLURGY
23
COATING 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
C
COATING 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
22
Chemical 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
78
Pretreatment of the material to be coated
C CHEMISTRY; METALLURGY
23
COATING 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
G
CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
1
Cleaning or pickling metallic material with solutions or molten salts
14
with alkaline solutions
20
Other heavy metals
Applicants:
HENKEL AG & CO. KGAA [DE/DE]; Henkelstr. 67 40589 Düsseldorf, DE (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IS, IT, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW)
NIHON PARKERIZING CO. LTD. [JP/JP]; 15-1, Nihonbashi 1-Chome Chuo-ku, Tokyo 103, JP (JP, KR)
Inventors:
ARNOLD, Andreas; DE
WOLPERS, Michael; DE
ROTH, Marcel; DE
SUNDERMEIER, Uta; DE
Priority Data:
12156863.824.02.2012EP
Title (EN) PRETREATING ZINC SURFACES PRIOR TO A PASSIVATING PROCESS
(FR) PRÉTRAITEMENT DE SURFACES EN ZINC AVANT UNE PASSIVATION
(DE) VORBEHANDLUNG VON ZINKOBERFLÄCHEN VOR EINER PASSIVIERUNG
Abstract:
(EN) The invention relates to a wet-chemical pretreatment of zinc surfaces prior to applying a corrosion-protection coating. The wet-chemical pretreatment produces a deposition of a thin inorganic coating which substantially consists of oxide and/or metallic iron. An iron layer structure which is applied according to the invention, hereinafter referred to as steeling, improves the achievable corrosion protection of wet-chemical conversion coatings known from the prior art on zinc surfaces. Furthermore, the steeling process causes both a reduction of the contact corrosion of joined metal components which have zinc and iron surfaces as well as a reduction of corrosive coating migration on cut edges of galvanized steel strips with coating layer structures. In particular, the invention relates to an alkali composition for steeling purposes, said composition containing an iron ion source, a reducing agent based on oxoacids of the elements nitrogen and phosphorus, and water-soluble organic carboxylic acids with an amino group at the α, ß, or γ position with respect to the acid group and/or the water-soluble salts thereof.
(FR) L'invention concerne un prétraitement chimique par voie humide de surfaces en zinc avant l'application d'un revêtement anticorrosif. Le prétraitement chimique par voie humide provoque le dépôt d'un revêtement organique mince, qui est sensiblement constitué de fer oxydique et/ou métallique. Une couche de fer appliquée selon l'invention - désignée par la suite par dépôt de fer - entraîne une amélioration de la protection contre la corrosion, pouvant être obtenue, de revêtements de conversion chimiques par voie humide sur des surfaces en zinc connus dans l'état de la technique. Par ailleurs, le dépôt de fer provoque à la fois la diminution de la corrosion par contact d'éléments métalliques assemblés présentant des surfaces en zinc et en fer et une diminution de l'infiltration par la corrosion dans le vernis au niveau des arêtes de coupe d'un feuillard galvanisé présentant plusieurs couches de vernis. L'invention concerne en particulier une composition alcaline pour le dépôt de fer, contenant une source d'ions fer, un réducteur à base d'oxoacides des éléments azote et phosphore, et des acides carboxyliques organiques solubles dans l'eau, comprenant un groupe amino dans la position α, ß- ou γ par rapport au groupe acide et/ou à leurs sels solubles dans l'eau.
(DE) Die vorliegende Erfindung betrifft eine nasschemische Vorbehandlung von Zinkoberflächen vor der Aufbringung einer korrosionsschützenden Beschichtung. Die nasschemische Vorbehandlung bewirkt die Abscheidung einer dünnen anorganischen Beschichtung, die im Wesentlichen aus oxidischem und/oder metallischem Eisen besteht. Eine erfindungsgemäß aufgebrachte Schichtauflage an Eisen - nachstehend Vereisenung genannt - bedingt eine Verbesserung des erreichbaren Korrosionsschutzes von im Stand der Technik bekannten nasschemischen Konversionsbeschichtungen auf Zinkoberflächen. Des Weiteren bewirkt die Vereisenung sowohl eine Verminderung der Kontaktkorrosion von zusammengefügten metallischen Bauteilen die Zink- und Eisenoberflächen aufweisen als auch eine Verminderung der korrosiven Lackunterwanderung an Schnittkanten von verzinktem Bandstahl mit Lackschichtaufbau. Die Erfindung betrifft insbesondere eine alkalische Zusammensetzung zur Vereisenung enthaltend eine Quelle für Eisen-Ionen, ein Reduktionsmittel auf Basis von Oxosäuren der Elemente Stickstoff und Phosphor sowie wasserlösliche organische Carbonsäuren mit einer Amino-Gruppe in α, ß-, oder γ-Stellung zur Säuregruppe und/oder deren wasserlösliche Salze.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)