EP0760870B1 - Eisenphosphatierung unter verwendung von substituierten monocarbonsäuren - Google Patents
Eisenphosphatierung unter verwendung von substituierten monocarbonsäuren Download PDFInfo
- Publication number
- EP0760870B1 EP0760870B1 EP95922451A EP95922451A EP0760870B1 EP 0760870 B1 EP0760870 B1 EP 0760870B1 EP 95922451 A EP95922451 A EP 95922451A EP 95922451 A EP95922451 A EP 95922451A EP 0760870 B1 EP0760870 B1 EP 0760870B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- phosphating
- iron
- solution
- acid
- phosphating solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C22/00—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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
- C23C22/10—Orthophosphates containing oxidants
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C22/00—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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
- C23C22/36—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C22/00—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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
- C23C22/42—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates containing also phosphates
-
- C—CHEMISTRY; METALLURGY
- C23—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
- C23C—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
- C23C22/00—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
- C23C22/05—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 using aqueous solutions
- C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
- C23C22/44—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates containing also fluorides or complex fluorides
Definitions
- the invention relates to a new phosphating solution for the so-called non-layer-forming phosphating of reactive metal surfaces, in particular Surfaces made of steel, aluminum, zinc or alloys whose Main component of at least one of the metals iron, aluminum or zinc represents.
- the metal surfaces with acidic solutions (pH range between 3.5 and 6) from Treated phosphates which creates a layer on the metal surface from phosphates and / or oxides, their cations from the metal surface and do not come from other components of the phosphating bath.
- Processes for iron phosphating are known in the prior art. she are used, for example, as a pretreatment process before painting used in cases where there is no excessive corrosive load of the components is to be expected.
- the iron phosphate layers have a mass per unit area (layer weight) of above about 0.2 g / m 2 .
- layer weight the corrosion protection effect increases with increasing layer weight.
- higher layer weights for example above about 0.8 g / m 2 , there is a risk that the layers become powdery and do not adhere firmly to the metal surface. This leads to an unacceptably poor paint adhesion.
- Efforts are therefore being made to produce iron phosphate layers which, on the one hand, achieve the highest possible layer weight, for example in the range between approximately 0.5 and approximately 1 g / m 2 , the coverings at the same time being intended to form firmly adhering layers.
- accelerators are inorganic or organic substances with an oxidizing, more rarely with a reducing effect.
- Inorganic accelerators are, for example, nitrates, chlorates, bromates, molybdates and tungstates.
- Known organic accelerators are aromatic nitro compounds such as nitrobenzenesulfonic acid, especially m-nitrobenzenesulfonic acid ("NBS").
- NBS m-nitrobenzenesulfonic acid
- An example of an inorganic substance with a rather reducing effect and with good accelerator properties is hydroxylamine and its salts.
- Phosphating baths containing such accelerator systems are known, for example, from US Pat. No. 5,137,589 and WO93 / 09266. According to the last-mentioned document, particularly good layers are produced when oxidizing and reductive accelerators are combined with one another, here, for example, hydroxylamine with organic nitro compounds, with molybdate or tungstates.
- the formation of iron phosphate layers is favorably influenced if the phosphating solution chelating complexing agents for iron contains.
- gluconic acid is used for this particularly suitable.
- the CA-874944 continues to recommend the use of ethylenediaminetetraacetic acid, nitrilotriacetic acid, Diethylenetriaminepentaacetic acid, citric acid, tartaric acid and Glucoheptonic acid.
- the complexing agents mentioned have in common that they chelating carboxylic acids with at least 4 carbon atoms and with at least 3 represent substituents selected from carboxyl and hydroxyl groups.
- EP-A-398 203 shows that iron phosphating solutions instead the usual accelerator anionic titanium compounds, preferably in a concentration between 0.05 and 0.2 g / l dissolved titanium can.
- GB-A-741.050 describes a non-layer-forming phosphating process for Metal surfaces described, in which the acid phosphating baths 0.1 to 3 wt .-% Contain tartaric acid or its salts.
- This additive makes the formation more powdery Prevents phosphate coatings.
- the phosphating baths have a pH in the range from 4.2 to 5.8 and are based on phosphate solutions of non-layer-forming metals and Oxidizing agents. It is mentioned that an addition of other compounds, such as Citric acid, lactic acid, glycolic acid, aminoacetic acid and its salts, the formation such powdery coatings not prevented.
- the invention has for its object an iron phosphating solution with an ecological to provide cheap accelerator system. It was found. that ecologically safe substituted monocarboxylic acids combined lead with the co-accelerator nitrobenzenesulfonic acid to phosphate layers that the meet technical requirements.
- the amino acids are preferably selected from glycine, alanine, serine, phenylalanine, (hydroxyphenyl) alanine and (dihydroxyphenyl) alanine, with glycine, alanine and serine being particularly preferred.
- phosphating solutions achieved that contain 0.2 to 0.5 g / l nitrobenzenesulfonic acid. Doing so preferably the m-nitrobenzenesulfonic acid (“NBS”) is used.
- NBS m-nitrobenzenesulfonic acid
- substituted carboxylic acids described by the general formula (I) are usually optically active.
- the acids are in the form of a racemate or in the R or L form available.
- the acids mentioned, including phosphoric acid, can be used as such or can be used as alkali or ammonium salts.
- the pH must be correct the phosphating solution to the effective range between about 3.5 and about 6.0 can be set. If necessary, this can be done by adding Acid, preferably phosphoric acid, or of lye, preferably sodium hydroxide solution, respectively. These are under these pH conditions Acids according to their respective pK values partly in undissociated Form before.
- the iron phosphating baths When incorporated, the iron phosphating baths usually have Iron (II) levels up to about 25 ppm, which has positive bathing properties influence. When it comes to new phosphating solutions, it is recommendable to add iron (II) ions in the ppm range, for example by adding about 20-50 ppm iron (II) sulfate.
- Total acid content
- points characterized by their "total acid” content, expressed in points, characterized.
- Total acid score the consumption in milliliters of 0.1 N sodium hydroxide solution, 10 ml of the solution up to the point of transition of phenolphthalein or titrate up to a pH of 8.5.
- Technically common areas of Total acid are between about 3 and about 7 points, preferably between about 4 and about 6 points.
- the temperatures of the treatment solutions are usually between about 30 and 70 ° C.
- the bath temperature is particularly suitable for cleaning acting baths according to the type and amount of pollution as well as the intended Treatment time.
- the minimum temperature depends on the foam behavior of the wetting agents used and is preferably above the Cloud point of the wetting agent selected. Usually the temperature is between 50 and 60 ° C.
- the workpieces to be treated can with the Solution splashed or immersed in the solution. Higher layer weights are usually obtained with immersion processes.
- the required treatment times are between 15 seconds and 10 minutes, but in practice Treatment times rarely fell below 60 seconds and 5 minutes rarely be exceeded.
- the invention also relates to a method for phosphating metal surfaces, preferably surfaces made of steel, zinc, aluminum or alloys, the main component of which is at least one of the metals iron, zinc or aluminum, by treating the surfaces with the solutions described above, preferably with a Temperature between 30 and 70 ° C, for a time between 15 seconds and 10 minutes, preferably one to 5 minutes, by immersion in the solution and / or by spraying with the solution.
- the process parameters are preferably chosen so that phosphate layers with a layer weight in the range of 0.2 to 1 g / m 2 , preferably 0.4 to 0.9 g / m 2 and in particular 0.4 to 0.7 g / m 2 are obtained will.
- the method can be used in particular for the pretreatment of metal surfaces before applying an organic coating, preferably selected from the group of paints and varnishes and the natural or synthetic rubbers and rubbers.
- the ready-to-use phosphating solutions can be achieved by dissolving the individual Components in the required concentration in water on site getting produced.
- the usual procedure is to concentrate who manufactures phosphating solutions based on the application concentration be diluted.
- Aqueous concentrates are usually made so that the application concentration by dilution with water by a factor between 5 and 200, preferably between 20 and 100, can be adjusted.
- the invention also includes aqueous concentrates, from which the above by appropriate dilution with water described phosphating solutions can be obtained.
- powdered concentrates can be used as an alternative to liquid-aqueous concentrates. Their composition is chosen so that when dissolving the powder in water in a concentration between 0.2 and 5 wt .-%, preferably between 0.5 and 3 wt .-% of those described above Receives phosphating solutions.
- Iron phosphating baths can be based on the pH value, the electrical conductivity or controlled and regulated via the total acid score will.
- Layer weights were obtained by peeling off the phosphate layer with triethanolamine determined according to DIN 50942.
- a three-week salt spray test was carried out in accordance with DIN 53167. Here was the paint infiltration on a cut after 21 days of testing measured.
- the phosphating baths had the following composition: 0.5% Phosphoric acid 75% 0.02% 50% gluconic acid 0.1% Na cumene sulfonate 0.1% P3-Tensopon R 0555 (nonionic surfactant mixture based on fatty alcohol ethoxylate propoxylate, 30% aqueous solution; Henkel KGaA, Düsseldorf) 0.005% FeSO 4 x 7H 2 O
Description
Es ist bekannt, daß die Schichtausbildung sehr stark durch die Anwesenheit sogenannter "Beschleuniger" beeinflußt wird. Solche Beschleuniger sind anorganische oder organische Substanzen mit oxidierender, seltener mit reduzierender Wirkung. Anorganische Beschleuniger sind beispielsweise Nitrate, Chlorate, Bromate, Molybdate und Wolframate. Bekannte organische Beschleuniger sind aromatische Nitroverbindungen wie beispielsweise Nitrobenzolsulfonsäure, insbesondere m-Nitrobenzolsulfonsäure ("NBS"). Ein Beispiel einer anorganischen Substanz mit eher reduzierender Wirkung und mit guten Beschleunigereigenschaften ist Hydroxylamin und seine Salze. Phosphatierbäder, die solche Beschleunigersysteme enthalten, sind beispielsweise bekannt aus der US-A-5,137,589 sowie der W093/09266. Gemäß dem letztgenannten Dokument werden besonders gute Schichten erzeugt, wenn man oxidativ und reduktiv wirkende Beschleuniger miteinander kombiniert, hier beispielsweise Hydroxylamin mit organischen Nitroverbindungen, mit Molybdaten oder Wolframaten.
- d) 0,01 bis 0,8 g/l einer oder mehrerer organischer Monocarbonsäuren der allgemeinen
Formel (I)
enthält, wobei
- R = H, CH3, CH2Y, C2H5, C2H4Y, C6H5, C6H4Y oder C6H3Y2,
- X und Y unabhängig voneinander NH2 oder OH und
- n = 0, 1 oder 2
RidolineR 1250 E (Henkel KGaA), 70 °C, 2 min, 1 bar, 20 g/l
50 °C, 2,5 min, 1 bar
Badzusammensetzung: siehe Einzelbeispiele
Variation von Phosphat und Gesamtsäure | |||||
Versuch-Nr. | H3PO4 85%ig g/l | NaOH 50%ig g/l | GS | Schichtgew. g/m2 | Aussehen |
Beisp.5 | 4,6 | 2,2 | 2,5 | 0,77 | graublau, fest |
Beisp.6 | 7,9 | 3,8 | 3,7 | 0,84 | bläulich irisierend fest |
Beisp.7 | 6,2 | 3,0 | 4,2 | 0,84 | bläulich irisierend fest |
Beisp.8 | 9,3 | 4,47 | 7,2 | 0,59 | grau wenig abwischbar |
0,5 % | Phosphorsäure 75 %ig |
0,02 % | Gluconsäure 50 %ig |
0,1 % | Na-Cumolsulfonat |
0,1 % | P3-TensoponR 0555 (nichtionisches Tensidgemisch auf Basis Fettalkohol-Ethoxylat-Propoxylat, 30 %ige wäßrige Lösung; Henkel KGaA, Düsseldorf) |
0,005 % | FeSO4 x 7H2O |
mit 50 %iger Natronlauge auf pH = 5,0 eingestellt.
Beschleuniger und Phosphatierergebnisse | |||
Versuch-Nr. | Beschleuniger | Schichtgew. g/m2 | Lackunterwanderung, mm |
Vergl.6 | 300 ppm NBS | ||
200 ppm Hydroxylamin | 0,64 | 2,1 | |
Vergl.7 | 300 ppm NBS | 0,61 | 5,5 |
Vergl.8 | 400 ppm NBS | 0,64 | 6,5 |
Beisp.9 | 300 ppm NBS | 0,56 | 2,1 |
300 ppm Glycin | |||
Beisp.10 | 400 ppm NBS | 0,58 | 1,7 |
200 ppm Glycin | |||
Beisp.11 | 300 ppm NBS | ||
200 ppm Milchsäure | 0,56 | 1,9 | |
Beisp.12 | 300 ppm NBS | ||
300 ppm Milchsäure | 0,58 | 1,7 |
Claims (12)
- Wäßrige Lösung zur Eisenphosphatierung von Metallen mit einem pH-Wert im Bereich von 3,5 bis 6, enthaltenda) 1 bis 20 g/l gelöstes Phosphat,b) 0,02 bis 2 g/l Nitrobenzolsulfonsäure,c) Wasser und erwünschtenfalls weitere Hilfsstoffe, dadurch gekennzeichnet, daß die Lösung außerdemR = H, CH3, CH2Y, C2H5, C2H4Y, C6H5, C6H4Y oder C6H3Y2,X und Y unabhängig voneinander NH2 oder OH undn = 0, 1 oder 2
- Phosphatierlösung nach Anspruch 1, dadurch gekennzeichnet, daß in der allgemeinen Formel (I) n = 0 und X = NH2 sind.
- Phosphatierlösung nach Anspruch 1, dadurch gekennzeichnet, daß in der allgemeinen Formel (I) X = OH ist.
- Phosphatierlösung nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sie 0,1 bis 0,8 g/l einer oder mehrerer Carbonsäuren der allgemeinen Formel (I) enthält.
- Phosphatierlösung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie 0,2 bis 0,5 g/l Nitrobenzolsulfonsäure enthält.
- Phosphatierlösung nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß sie als Nitrobenzolsulfonsäure m-Nitrobenzolsulfonsäure enthält.
- Phosphatierlösung nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß sie einen oder mehrere der folgenden Hilfsstoffe enthält:e) 0,05 bis 3 g/l freies und/oder komplex gebundenes Fluorid,f) 0,1 bis 6 g/l einer chelatisierenden Carbonsäure mit mindestens vier C-Atomen und mindestens drei Substituenten ausgewählt aus Carboxyl- und Hydroxy-Gruppen,g) 0,02 bis 20 mMol/l Molybdat und/oder Wolframat,h) 0,05 bis 0,2 g/l einer anionischen Titanverbindung,i) bis zu 40 g/l Tenside,k) 0,05 bis 5 g/l Nitrat.
- Verfahren zur Eisenphosphatierung von Metalloberflächen, ausgewählt aus Oberflächen aus Stahl, Zink, Aluminium oder Legierungen, deren Hauptkomponente mindestens eines der Metalle Eisen, Zink oder Aluminium darstellt, indem man die Oberflächen mit Lösungen nach einem oder mehreren der Ansprüche 1 bis 7, bei einer Temperatur zwischen 30 und 70 °C für eine Zeit zwischen 15 Sekunden und 10 Minuten durch Eintauchen in die Lösung und/oder durch Bespritzen mit der Lösung in Kontakt bringt.
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß man Phosphatschichten mit einem Schichtgewicht im Bereich 0,2 bis 1 g/m2 erzeugt.
- Verfahren nach einem oder beiden Ansprüche 8 und 9 zur Vorbehandlung von Metalloberflächen vor dem Aufbringen einer organischen Beschichtung.
- Wäßriges Konzentrat, das beim Verdünnen mit Wasser um einen Faktor zwischen 5 und 200 eine Eisenphosphatierlösung gemäß einem oder mehreren der Ansprüche 1 bis 7 ergibt.
- Pulverförmiges Mittel, das beim Auflösen in Wasser in einer Konzentration zwischen 0,2 und 5 Gew.-% eine Eisenphosphatierlösung gemäß einem oder mehreren der Ansprüche 1 bis 7 ergibt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4417965A DE4417965A1 (de) | 1994-05-21 | 1994-05-21 | Eisenphosphatierung unter Verwendung von substituierten Monocarbonsäuren |
DE4417965 | 1994-05-21 | ||
PCT/EP1995/001815 WO1995032319A1 (de) | 1994-05-21 | 1995-05-12 | Eisenphosphatierung unter verwendung von substituierten monocarbonsäuren |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0760870A1 EP0760870A1 (de) | 1997-03-12 |
EP0760870B1 true EP0760870B1 (de) | 1998-10-28 |
Family
ID=6518757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95922451A Expired - Lifetime EP0760870B1 (de) | 1994-05-21 | 1995-05-12 | Eisenphosphatierung unter verwendung von substituierten monocarbonsäuren |
Country Status (9)
Country | Link |
---|---|
US (1) | US5919318A (de) |
EP (1) | EP0760870B1 (de) |
JP (1) | JPH10500452A (de) |
AT (1) | ATE172757T1 (de) |
CA (1) | CA2190991A1 (de) |
DE (2) | DE4417965A1 (de) |
DK (1) | DK0760870T3 (de) |
ES (1) | ES2124558T3 (de) |
WO (1) | WO1995032319A1 (de) |
Families Citing this family (15)
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DE19808440C2 (de) * | 1998-02-27 | 2000-08-24 | Metallgesellschaft Ag | Wässrige Lösung und Verfahren zur Phosphatierung metallischer Oberflächen sowie eine Verwendung der Lösung und des Verfahrens |
US6695931B1 (en) | 1999-05-24 | 2004-02-24 | Birchwood Laboratories, Inc. | Composition and method for metal coloring process |
US6576346B1 (en) * | 1999-05-24 | 2003-06-10 | Birchwood Laboratories, Inc. | Composition and method for metal coloring process |
US6645316B1 (en) | 1999-05-28 | 2003-11-11 | Henkel Kommanditgesellschaft Auf Aktien | Post-passivation of a phosphatized metal surface |
DE10109480A1 (de) * | 2001-02-28 | 2002-09-05 | Volkswagen Ag | Verfahren zur Beschichtung einer Aluminiumoberfläche |
GB2374088A (en) * | 2001-03-29 | 2002-10-09 | Macdermid Plc | Conversion treatment of zinc and zinc alloy surfaces |
US20030172998A1 (en) * | 2002-03-14 | 2003-09-18 | Gerald Wojcik | Composition and process for the treatment of metal surfaces |
US6899956B2 (en) | 2002-05-03 | 2005-05-31 | Birchwood Laboratories, Inc. | Metal coloring process and solutions therefor |
US20040118483A1 (en) * | 2002-12-24 | 2004-06-24 | Michael Deemer | Process and solution for providing a thin corrosion inhibiting coating on a metallic surface |
US7964044B1 (en) | 2003-10-29 | 2011-06-21 | Birchwood Laboratories, Inc. | Ferrous metal magnetite coating processes and reagents |
US7144599B2 (en) * | 2004-07-15 | 2006-12-05 | Birchwood Laboratories, Inc. | Hybrid metal oxide/organometallic conversion coating for ferrous metals |
JP5593532B2 (ja) * | 2008-07-30 | 2014-09-24 | ディップソール株式会社 | 亜鉛又は亜鉛合金めっき上にクロムフリー化成皮膜を形成するための化成処理水溶液及びそれより得られたクロムフリー化成皮膜 |
DE102014005444A1 (de) * | 2014-04-11 | 2015-10-15 | Audi Ag | Verfahren zur Passivierung einer metallischen Oberfläche |
WO2018095684A1 (de) * | 2016-11-23 | 2018-05-31 | Chemetall Gmbh | Zusammensetzung und verfahren zur chromfreien vorbehandlung von aluminiumoberflächen |
EP3502311A1 (de) | 2017-12-20 | 2019-06-26 | Henkel AG & Co. KGaA | Verfahren zur korrosionsschützenden und reinigenden vorbehandlung von metallischen bauteilen |
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GB741050A (en) * | 1952-07-01 | 1955-11-23 | Pyrene Co Ltd | Improvements in the formation of phosphate coatings on metal surfaces |
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US2776917A (en) * | 1956-07-10 | 1957-01-08 | Gillette Co | Article with corrosion-inhibited surface and composition for coating said surface |
CA874944A (en) * | 1969-04-08 | 1971-07-06 | Hooker Chemical Corporation | Composition and process for coating metal |
DE2506349A1 (de) * | 1975-02-14 | 1976-08-26 | Kluthe Kg Chem Werke | Phosphatierungsmittel und verfahren zu seiner anwendung |
US4017335A (en) * | 1975-10-30 | 1977-04-12 | Economics Laboratory, Inc. | Liquid phosphatizing composition and use thereof |
DE2622276A1 (de) * | 1976-05-19 | 1977-12-08 | Hoechst Ag | Verfahren zur phosphatierung von metallen |
JPS5549172A (en) * | 1978-10-03 | 1980-04-09 | Kawasaki Steel Corp | Surface treatment method of tin-free steel |
DE3325974A1 (de) * | 1983-07-19 | 1985-01-31 | Gerhard Collardin GmbH, 5000 Köln | Verfahren und universell anwendbare mittel zum beschleunigten aufbringen von phosphatueberzuegen auf metalloberflaechen |
DE3408577A1 (de) * | 1984-03-09 | 1985-09-12 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur phosphatierung von metallen |
US5073196A (en) * | 1989-05-18 | 1991-12-17 | Henkel Corporation | Non-accelerated iron phosphating |
JPH0696773B2 (ja) * | 1989-06-15 | 1994-11-30 | 日本ペイント株式会社 | 金属表面のリン酸亜鉛皮膜形成方法 |
US5137589A (en) * | 1990-02-09 | 1992-08-11 | Texo Corporation | Method and composition for depositing heavy iron phosphate coatings |
US5143562A (en) * | 1991-11-01 | 1992-09-01 | Henkel Corporation | Broadly applicable phosphate conversion coating composition and process |
-
1994
- 1994-05-21 DE DE4417965A patent/DE4417965A1/de not_active Withdrawn
-
1995
- 1995-05-12 DE DE59504085T patent/DE59504085D1/de not_active Expired - Lifetime
- 1995-05-12 AT AT95922451T patent/ATE172757T1/de not_active IP Right Cessation
- 1995-05-12 JP JP7530027A patent/JPH10500452A/ja not_active Ceased
- 1995-05-12 DK DK95922451T patent/DK0760870T3/da active
- 1995-05-12 CA CA002190991A patent/CA2190991A1/en not_active Abandoned
- 1995-05-12 ES ES95922451T patent/ES2124558T3/es not_active Expired - Lifetime
- 1995-05-12 EP EP95922451A patent/EP0760870B1/de not_active Expired - Lifetime
- 1995-05-12 WO PCT/EP1995/001815 patent/WO1995032319A1/de active IP Right Grant
- 1995-05-12 US US08/737,662 patent/US5919318A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE172757T1 (de) | 1998-11-15 |
JPH10500452A (ja) | 1998-01-13 |
DE59504085D1 (de) | 1998-12-03 |
DK0760870T3 (da) | 1999-07-12 |
WO1995032319A1 (de) | 1995-11-30 |
ES2124558T3 (es) | 1999-02-01 |
US5919318A (en) | 1999-07-06 |
EP0760870A1 (de) | 1997-03-12 |
DE4417965A1 (de) | 1995-11-23 |
CA2190991A1 (en) | 1995-11-30 |
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