EP0201841A2 - Procédé de phosphatation de surfaces métalliques - Google Patents
Procédé de phosphatation de surfaces métalliques Download PDFInfo
- Publication number
- EP0201841A2 EP0201841A2 EP86106161A EP86106161A EP0201841A2 EP 0201841 A2 EP0201841 A2 EP 0201841A2 EP 86106161 A EP86106161 A EP 86106161A EP 86106161 A EP86106161 A EP 86106161A EP 0201841 A2 EP0201841 A2 EP 0201841A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ppm
- metal surfaces
- phosphate
- acid
- rinse bath
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010936 titanium Substances 0.000 claims abstract description 12
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 12
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 claims abstract description 9
- 235000011180 diphosphates Nutrition 0.000 claims abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 22
- 229910019142 PO4 Inorganic materials 0.000 claims description 21
- 239000010452 phosphate Substances 0.000 claims description 21
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 8
- 230000003213 activating effect Effects 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 3
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 2
- 125000005396 acrylic acid ester group Chemical group 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims description 2
- 229920006318 anionic polymer Polymers 0.000 claims description 2
- 239000007859 condensation product Substances 0.000 claims description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 2
- 239000011976 maleic acid Substances 0.000 claims description 2
- 150000002735 metacrylic acids Chemical class 0.000 claims description 2
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 claims description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- -1 anionic organic compound Chemical class 0.000 abstract description 2
- 230000003750 conditioning effect Effects 0.000 abstract description 2
- 238000007746 phosphate conversion coating Methods 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000013078 crystal Substances 0.000 description 9
- 230000004913 activation Effects 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 4
- 238000004448 titration Methods 0.000 description 4
- 241001295925 Gegenes Species 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000003679 aging effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000009189 diving Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 2
- 229910000165 zinc phosphate Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- UDSAIICHUKSCKT-UHFFFAOYSA-N bromophenol blue Chemical compound C1=C(Br)C(O)=C(Br)C=C1C1(C=2C=C(Br)C(O)=C(Br)C=2)C2=CC=CC=C2S(=O)(=O)O1 UDSAIICHUKSCKT-UHFFFAOYSA-N 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- JUWGUJSXVOBPHP-UHFFFAOYSA-B titanium(4+);tetraphosphate Chemical compound [Ti+4].[Ti+4].[Ti+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O JUWGUJSXVOBPHP-UHFFFAOYSA-B 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
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
- C23C22/78—Pretreatment of the material to be coated
- C23C22/80—Pretreatment of the material to be coated with solutions containing titanium or zirconium compounds
Definitions
- the invention relates to a method for phosphating metal surfaces, in which the metal surfaces are brought into contact with an aqueous pre-rinse bath containing titanium, phosphate and pyrophosphate as an activating agent before they are phosphated.
- Activation of a metal surface before phosphating means contacting this surface with an aqueous pre-rinse bath in which an activating agent is extremely finely dispersed as a solid phase.
- an activating agent is extremely finely dispersed as a solid phase.
- the effectiveness of the activation extends both to the phosphating of iron and steel and to that of non-ferrous metals, for example zinc, zinc alloys, metals coated with zinc and zinc alloys, aluminum, aluminum alloys and metals coated with aluminum and its alloys.
- the object of the invention is to provide a method for phosphating metal surfaces by pretreatment to be provided by means of a pre-rinse bath which does not have the known, in particular the aforementioned disadvantages, or has them in a greatly reduced form, can be used without additional work and remains effective over a considerably extended period of time.
- the phosphate layer produced becomes less dense. If the concentration is increased above 100 ppm, the phosphate layer remains as dense as in the range from 3 to 100 ppm, but no additional effect is obtained, so that such high concentrations are not recommended from an economic point of view.
- the phosphate layer becomes less dense and its weight increases.
- the well-known aging effect is noticeable.
- the concentration exceeds 360 ppm, it becomes increasingly difficult to form a zinc phosphate type layer; instead, an iron phosphate layer is increasingly formed.
- Layers with the desired density of the phosphate crystals and the desired low layer weight are obtained only in the range from 60 to 360 ppm, which should be explained by the suppression of the coagulation of the titanium colloids.
- the fourth essential component of the pre-rinse bath - especially in connection with pyrophosphate - ensures that perfect layers are obtained even after relatively long periods of use.
- the reason for this is likely to be that the coagulation of the titanium colloids responsible for aging is suppressed or the titanium colloids are stabilized. This stabilization could possibly also be achieved by correspondingly high amounts of pyrophosphate, but then the metal surfaces become inactive and the layer formation is inhibited.
- the combined use of both bath components in the concentrations mentioned ensures that, on the one hand, the initially existing stability of the titanium colloids and, at the same time, the activity of the metal surfaces is retained.
- Compliance with the pH range is important insofar as there is a tendency for the titanium colloids to coagulate when the value falls below it, and the conditioning effect of the pre-rinse bath is lost when it is exceeded.
- the metal surfaces are brought into contact with a pre-rinse bath whose water-soluble, anionic polymer is formed from the unsaturated carboxylic acid, acrylic acid, metacrylic acid and / or maleic acid.
- Tables 1 and 2 The test results are summarized in Tables 1 and 2. This shows that the layers produced by the process according to the invention (Table 1 Examples 1 to 8; Table 2 Examples 1 to 8) are of excellent quality in terms of appearance, weight gain and crystal size, while the layers produced by the known process (Table 1 Comparative Example 1 and Table 2 Comparative Example 1) likewise show good results immediately after the preparation, but are unsatisfactory after a waiting period of 10 days.
- Table 2 also shows the results obtained with essentially the same pre-rinse baths in Table 1. Only the water used had instead a specific conductivity of 150 / uS / cm, such a 600 / uS / cm. The effective bath components and their amounts were the same. From this it follows that the lower water quality has far less impact on the results obtained than in the known pre-rinse baths (cf. Experiment 1).
Landscapes
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
- Laminated Bodies (AREA)
- ing And Chemical Polishing (AREA)
- Catalysts (AREA)
- Dental Preparations (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT86106161T ATE68532T1 (de) | 1985-05-10 | 1986-05-06 | Verfahren zur phosphatierung von metalloberflaechen. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60099278A JPS61257481A (ja) | 1985-05-10 | 1985-05-10 | りん酸塩皮膜化成処理用水性表面調整液 |
| JP99278/85 | 1985-05-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0201841A2 true EP0201841A2 (fr) | 1986-11-20 |
| EP0201841A3 EP0201841A3 (en) | 1988-08-10 |
| EP0201841B1 EP0201841B1 (fr) | 1991-10-16 |
Family
ID=14243197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP86106161A Expired - Lifetime EP0201841B1 (fr) | 1985-05-10 | 1986-05-06 | Procédé de phosphatation de surfaces métalliques |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0201841B1 (fr) |
| JP (1) | JPS61257481A (fr) |
| AT (1) | ATE68532T1 (fr) |
| AU (1) | AU5672986A (fr) |
| BR (1) | BR8602096A (fr) |
| DE (2) | DE3615294A1 (fr) |
| GB (1) | GB2174719B (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0339452A2 (fr) * | 1988-04-28 | 1989-11-02 | Henkel Kommanditgesellschaft auf Aktien | Phosphates de titane polymères, leur procédé de préparation et leur utilisation dans l'activation de surfaces métalliques avant une phosphatation en zinc |
| EP0340529A1 (fr) * | 1988-04-28 | 1989-11-08 | Henkel Kommanditgesellschaft auf Aktien | Additif stabilisateur d'agents d'activation dans l'eau dure avant la phosphatation au zinc |
| WO1995031588A1 (fr) * | 1994-05-11 | 1995-11-23 | Henkel Kommanditgesellschaft Auf Aktien | Fabrication d'activateurs phosphates destines a la phosphatation par micro-ondes |
| EP0972862A3 (fr) * | 1998-07-01 | 2004-01-02 | Nihon Parkerizing Co., Ltd. | Procédé de fabrication d'un film à base de phosphate et sur des fils d'acier et dispositif |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0633465B2 (ja) * | 1986-04-26 | 1994-05-02 | 日本パ−カライジング株式会社 | りん酸塩処理した自動車車体の後処理方法 |
| US8506728B2 (en) * | 2009-09-03 | 2013-08-13 | Mazda Motor Corporation | Surface treatment method of metal material |
| DE102014105226A1 (de) | 2014-04-11 | 2015-10-15 | Thyssenkrupp Ag | Verfahren zur Aktivierung von zu phosphatierenden Metalloberflächen, vorzugsweise verzinktem Stahlblech |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2093664A5 (fr) * | 1970-05-25 | 1972-01-28 | Balm Paints Ltd | |
| FR2217438A1 (fr) * | 1973-02-09 | 1974-09-06 | Parker Ste Continentale | |
| US3864139A (en) * | 1970-12-04 | 1975-02-04 | Amchem Prod | Pretreatment compositions and use thereof in treating metal surfaces |
| EP0056675A2 (fr) * | 1981-01-19 | 1982-07-28 | Nippon Paint Co., Ltd. | Composition de prétraitement pour la phosphatation de métaux ferreux et procédé pour sa préparation |
| GB2136454A (en) * | 1983-03-02 | 1984-09-19 | Pyrene Chemical Services Ltd | Treatment of metal prior to coating with zinc phosphate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855229A (ja) * | 1981-09-28 | 1983-04-01 | Toyo Rubber Chem Ind Co Ltd | ポリスチレン発泡体の製造方法 |
-
1985
- 1985-05-10 JP JP60099278A patent/JPS61257481A/ja active Granted
-
1986
- 1986-04-24 AU AU56729/86A patent/AU5672986A/en not_active Abandoned
- 1986-05-06 AT AT86106161T patent/ATE68532T1/de not_active IP Right Cessation
- 1986-05-06 DE DE19863615294 patent/DE3615294A1/de not_active Withdrawn
- 1986-05-06 DE DE8686106161T patent/DE3681958D1/de not_active Expired - Fee Related
- 1986-05-06 EP EP86106161A patent/EP0201841B1/fr not_active Expired - Lifetime
- 1986-05-09 BR BR8602096A patent/BR8602096A/pt unknown
- 1986-05-12 GB GB8611556A patent/GB2174719B/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2093664A5 (fr) * | 1970-05-25 | 1972-01-28 | Balm Paints Ltd | |
| US3864139A (en) * | 1970-12-04 | 1975-02-04 | Amchem Prod | Pretreatment compositions and use thereof in treating metal surfaces |
| FR2217438A1 (fr) * | 1973-02-09 | 1974-09-06 | Parker Ste Continentale | |
| EP0056675A2 (fr) * | 1981-01-19 | 1982-07-28 | Nippon Paint Co., Ltd. | Composition de prétraitement pour la phosphatation de métaux ferreux et procédé pour sa préparation |
| GB2136454A (en) * | 1983-03-02 | 1984-09-19 | Pyrene Chemical Services Ltd | Treatment of metal prior to coating with zinc phosphate |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0339452A2 (fr) * | 1988-04-28 | 1989-11-02 | Henkel Kommanditgesellschaft auf Aktien | Phosphates de titane polymères, leur procédé de préparation et leur utilisation dans l'activation de surfaces métalliques avant une phosphatation en zinc |
| EP0340529A1 (fr) * | 1988-04-28 | 1989-11-08 | Henkel Kommanditgesellschaft auf Aktien | Additif stabilisateur d'agents d'activation dans l'eau dure avant la phosphatation au zinc |
| EP0339452A3 (fr) * | 1988-04-28 | 1991-06-12 | Henkel Kommanditgesellschaft auf Aktien | Phosphates de titane polymères, leur procédé de préparation et leur utilisation dans l'activation de surfaces métalliques avant une phosphatation en zinc |
| WO1995031588A1 (fr) * | 1994-05-11 | 1995-11-23 | Henkel Kommanditgesellschaft Auf Aktien | Fabrication d'activateurs phosphates destines a la phosphatation par micro-ondes |
| EP0972862A3 (fr) * | 1998-07-01 | 2004-01-02 | Nihon Parkerizing Co., Ltd. | Procédé de fabrication d'un film à base de phosphate et sur des fils d'acier et dispositif |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5672986A (en) | 1986-11-13 |
| JPS61257481A (ja) | 1986-11-14 |
| JPH0338343B2 (fr) | 1991-06-10 |
| EP0201841A3 (en) | 1988-08-10 |
| BR8602096A (pt) | 1987-01-13 |
| ATE68532T1 (de) | 1991-11-15 |
| GB8611556D0 (en) | 1986-06-18 |
| GB2174719B (en) | 1989-05-04 |
| EP0201841B1 (fr) | 1991-10-16 |
| GB2174719A (en) | 1986-11-12 |
| DE3681958D1 (de) | 1991-11-21 |
| DE3615294A1 (de) | 1986-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3118375C2 (fr) | ||
| EP0312176B1 (fr) | Procédé pour produire des couches de conversion | |
| EP0056881B1 (fr) | Procédé pour la phosphatation de métaux | |
| DE3715663A1 (de) | Andosier-loesung fuer anodische oxidation von magnesium oder magnesium-legierungen | |
| DE3234558C2 (fr) | ||
| EP0214571A1 (fr) | Procédé pour la formation de couches de conversion sur du zinc et/ou sur des alliages de zinc | |
| EP0015021B1 (fr) | Procédé de préparation de surfaces métalliques avant dépôt de primaire par immersion électrophorétique | |
| EP0154367B1 (fr) | Procédé de phosphatation de métaux | |
| EP0328908B1 (fr) | Procédé pour appliquer des couches de conversion | |
| EP0261704A1 (fr) | Procédé pour produire des revêtements de phosphate sur des surfaces métalliques | |
| DE3245411C2 (fr) | ||
| EP0201841B1 (fr) | Procédé de phosphatation de surfaces métalliques | |
| DE3307158A1 (de) | Verfahren zur aktivierung der phosphatschichtausbildung auf metallen und mittel zur durchfuehrung solcher verfahren | |
| DE2232067B2 (de) | Verfahren zur Vorbereitung von Metalloberflächen für die elektrophoretische Tauchlackierung | |
| EP0039093B1 (fr) | Procédé de phosphatation des surfaces de métaux et application de ce procédé | |
| DE2715291C3 (de) | Verfahren zur Herstellung einses amorphen, leichten, fest haftenden Phosphatüberzugs auf Eisenmetalloberflächen | |
| DE3636797A1 (de) | Verfahren zur erzeugung von chromatschichten | |
| DE3734596A1 (de) | Verfahren zum erzeugen von phosphatueberzuegen | |
| DE3719312A1 (de) | Verfahren zur erzeugung von chromatueberzuegen | |
| DE1521678B2 (de) | Verfahren und ueberzugsloesung zur herstellung von phosphat ueberzuegen | |
| DE2718618A1 (de) | Verfahren zum phosphatieren von metallgegenstaenden | |
| EP0711849A1 (fr) | Procédé pour appliquer des revêtements de phosphate | |
| DE69325035T2 (de) | Zusammensetzung und verfahren zum behandeln von verzinnten stahlplatten | |
| DE1269452B (de) | Verfahren zum Phosphatieren von Eisen- und Stahlflaechen | |
| DE1088311B (de) | Verfahren zur Herstellung festhaftender Schutzueberzuege auf Oberflaechen aus Titan,Zirkon oder Legierungen derselben |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE DE FR IT NL SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE DE FR IT NL SE |
|
| 17P | Request for examination filed |
Effective date: 19890114 |
|
| 17Q | First examination report despatched |
Effective date: 19900917 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE DE FR IT NL SE |
|
| REF | Corresponds to: |
Ref document number: 68532 Country of ref document: AT Date of ref document: 19911115 Kind code of ref document: T |
|
| ET | Fr: translation filed | ||
| REF | Corresponds to: |
Ref document number: 3681958 Country of ref document: DE Date of ref document: 19911121 |
|
| ITF | It: translation for a ep patent filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19930429 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19930506 Year of fee payment: 8 Ref country code: AT Payment date: 19930506 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19930514 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19930531 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19930630 Year of fee payment: 8 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19940506 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19940507 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19940531 |
|
| BERE | Be: lapsed |
Owner name: NIHON PARKERIZING CO. LTD Effective date: 19940531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19941201 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
| EUG | Se: european patent has lapsed |
Ref document number: 86106161.2 Effective date: 19941210 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19950131 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19950201 |
|
| EUG | Se: european patent has lapsed |
Ref document number: 86106161.2 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050506 |