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1. (WO1998052699) WATER-BASED LIQUID TREATMENT FOR ALUMINUM AND ITS ALLOYS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/052699 International Application No.: PCT/US1998/009902
Publication Date: 26.11.1998 International Filing Date: 22.05.1998
Chapter 2 Demand Filed: 16.09.1998
IPC:
C23C 22/34 (2006.01) ,C23C 22/56 (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
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
06
using aqueous acidic solutions with pH 6
48
not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
56
Treatment of aluminium or alloys based thereon
Applicants:
HENKEL CORPORATION [US/US]; Suite 200 2500 Renaissance Boulevard Gulph Mills, PA 19406, US (AllExceptUS)
NAKADA, Kazuya [JP/JP]; JP (UsOnly)
KAWAGUCHI, Motoki [JP/JP]; JP (UsOnly)
MAEDA, Kazuhiro [JP/JP]; JP (UsOnly)
Inventors:
NAKADA, Kazuya; JP
KAWAGUCHI, Motoki; JP
MAEDA, Kazuhiro; JP
Agent:
WISDOM, Norwell, E., Jr.; Henkel Corporation Suite 200 2500 Renaissance Boulevard Gulph Mills, PA 19406, US
Priority Data:
9/13185922.05.1997JP
Title (EN) WATER-BASED LIQUID TREATMENT FOR ALUMINUM AND ITS ALLOYS
(FR) TRAITEMENT LIQUIDE A BASE AQUEUSE POUR L'ALUMINIUM ET SES ALLIAGES
Abstract:
(EN) A chromium-free water-based surface treatment liquid which contains from 0.01 to 50 g/l of a total of dissolved manganic acid, permanganic acid, and salt(s) thereof and from 0.01 to 20 g/l of a total of dissolved titanium compounds and has a pH of from 1.0 to 6.0 reacts rapidly with aluminum and aluminum alloy surfaces to deposit thereon a protective coating that does not contain hexavalent chromium and has excellent corrosion resistance and paint film holding properties.
(FR) L'invention concerne un liquide de traitement de surface à base aqueuse sans chrome contenant entre 0,01 et 50 g/l d'un total dissous d'acide manganique, d'acide permanganique et de ses sels, et entre 0,01 et 20 g/l d'un total de composés de titane dissous, et possédant un pH compris entre 1,0 et 6,0; le liquide réagit rapidement avec les surfaces en aluminium ou en alliage d'aluminium pour y déposer un revêtement protecteur ne contenant pas de chrome hexavalent et présentant une excellente résistance à la corrosion et des propriétés de retenue de pellicule de peinture.
Designated States: AU, CA, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP1017505US6200693CA2291140AU1998075734