EP0399172B1 - Verfahren zur Erzeugung farbiger Oberflächen auf Teilen aus Aluminium oder Aluminium-Legierungen - Google Patents
Verfahren zur Erzeugung farbiger Oberflächen auf Teilen aus Aluminium oder Aluminium-Legierungen Download PDFInfo
- Publication number
- EP0399172B1 EP0399172B1 EP90105561A EP90105561A EP0399172B1 EP 0399172 B1 EP0399172 B1 EP 0399172B1 EP 90105561 A EP90105561 A EP 90105561A EP 90105561 A EP90105561 A EP 90105561A EP 0399172 B1 EP0399172 B1 EP 0399172B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- parts
- approximately
- solution containing
- immersed
- immersion
- 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
Links
- 238000000034 method Methods 0.000 title claims description 25
- 229910052782 aluminium Inorganic materials 0.000 title claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 title claims description 6
- 239000004411 aluminium Substances 0.000 title claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 235000011149 sulphuric acid Nutrition 0.000 claims description 10
- 229910001868 water Inorganic materials 0.000 claims description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 6
- 239000001117 sulphuric acid Substances 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- DBJLJFTWODWSOF-UHFFFAOYSA-L nickel(ii) fluoride Chemical compound F[Ni]F DBJLJFTWODWSOF-UHFFFAOYSA-L 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 229910052718 tin Inorganic materials 0.000 claims description 5
- FAKFSJNVVCGEEI-UHFFFAOYSA-J tin(4+);disulfate Chemical compound [Sn+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O FAKFSJNVVCGEEI-UHFFFAOYSA-J 0.000 claims description 5
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 5
- 239000000987 azo dye Substances 0.000 claims description 4
- 239000000975 dye Substances 0.000 claims description 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910021583 Cobalt(III) fluoride Inorganic materials 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 claims description 3
- YCYBZKSMUPTWEE-UHFFFAOYSA-L cobalt(ii) fluoride Chemical compound F[Co]F YCYBZKSMUPTWEE-UHFFFAOYSA-L 0.000 claims description 3
- 230000000855 fungicidal effect Effects 0.000 claims description 3
- 239000000417 fungicide Substances 0.000 claims description 3
- 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 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 239000010452 phosphate Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 3
- 150000003918 triazines Chemical class 0.000 claims description 3
- 239000000080 wetting agent Substances 0.000 claims description 3
- 240000000731 Fagus sylvatica Species 0.000 claims description 2
- 235000010099 Fagus sylvatica Nutrition 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 239000000284 extract Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 7
- 239000008151 electrolyte solution Substances 0.000 claims 6
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 239000003112 inhibitor Substances 0.000 claims 2
- 239000004289 sodium hydrogen sulphite Substances 0.000 claims 2
- 229910000375 tin(II) sulfate Inorganic materials 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 238000004040 coloring Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 238000001465 metallisation Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 3
- 235000019801 trisodium phosphate Nutrition 0.000 description 3
- 235000005811 Viola adunca Nutrition 0.000 description 2
- 240000009038 Viola odorata Species 0.000 description 2
- 235000013487 Viola odorata Nutrition 0.000 description 2
- 235000002254 Viola papilionacea Nutrition 0.000 description 2
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 2
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 241001295925 Gegenes Species 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 210000002023 somite Anatomy 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
- C25F3/18—Polishing of light metals
- C25F3/20—Polishing of light metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
Definitions
- the invention relates to a method for producing colored surfaces on parts made of aluminum or aluminum alloys.
- Aluminum parts such as aluminum pressed or rolled profiles, are among others in the building hardware and lighting industry or in particular in the automotive industry with e.g. Window border systems or as decorative frames, moldings and. Like. Used. It is also known to use parts made of aluminum or aluminum alloys that have a colored anodized surface.
- the new method should be characterized in that a variety of colors with color gradations Gold - bronze Light - dark bronze Gray - brown Gray - blue anthracite Light-dark blue Blue-violet when coloring the parts, a simple check of the coloring results and a reproducibility of the individual color nuances is possible at any time.
- the oxide layer is permanently pre-compressed.
- the profile is treated at 70 ° C. in deionized water with the addition of a scale inhibitor of 2 ml / l triazine derivative for 50 minutes.
- the increase in volume of the layer closes the pores.
- the layer is now protected against external influences.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Printing Plates And Materials Therefor (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3917188A DE3917188A1 (de) | 1989-05-26 | 1989-05-26 | Verfahren zur erzeugung farbiger oberflaechen auf teilen aus aluminium oder aluminium-legierungen |
| DE3917188 | 1989-05-26 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0399172A2 EP0399172A2 (de) | 1990-11-28 |
| EP0399172A3 EP0399172A3 (de) | 1991-06-12 |
| EP0399172B1 true EP0399172B1 (de) | 1993-08-11 |
Family
ID=6381456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90105561A Expired - Lifetime EP0399172B1 (de) | 1989-05-26 | 1990-03-23 | Verfahren zur Erzeugung farbiger Oberflächen auf Teilen aus Aluminium oder Aluminium-Legierungen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5102508A (enrdf_load_stackoverflow) |
| EP (1) | EP0399172B1 (enrdf_load_stackoverflow) |
| JP (1) | JPH0313596A (enrdf_load_stackoverflow) |
| DE (2) | DE3917188A1 (enrdf_load_stackoverflow) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4227023C1 (en) * | 1992-08-14 | 1993-09-09 | Julius & August Erbsloeh Gmbh & Co, 5620 Velbert, De | Colouring anodised coatings on aluminium@ objects - using 1st soln. contg. organic colouring agent and 2nd soln. contg. metal salt in which electrolytic treatment is carried out |
| FR2733998B1 (fr) * | 1995-05-12 | 1997-06-20 | Satma Societe Anonyme De Trait | Procede de polissage electrolytique en deux etapes de surfaces metalliques pour obtenir des proprietes optiques ameliorees et produits resultants |
| US5616231A (en) * | 1996-05-08 | 1997-04-01 | Aluminum Company Of America | Electrobrightening process for aluminum alloys |
| US6884336B2 (en) * | 2003-01-06 | 2005-04-26 | General Motors Corporation | Color finishing method |
| US20050056546A1 (en) * | 2003-09-17 | 2005-03-17 | Kia Sheila Farrokhalaee | Aluminum vehicle body |
| JP4766448B2 (ja) * | 2005-08-04 | 2011-09-07 | 株式会社カツシカ | 陽極酸化皮膜処理による加飾方法 |
| DE102007005073A1 (de) | 2007-01-26 | 2008-07-31 | Decoma (Germany) Gmbh | Verfahren zum Beschichten einer Oberfläche eines Bauteils |
| US20100215926A1 (en) * | 2009-02-25 | 2010-08-26 | Askin Albert L | Aluminum alloy substrates having a multi-color effect and methods for producing the same |
| ITMI20131604A1 (it) * | 2013-09-30 | 2015-03-31 | Ossidazione Anodica S R L | Precesso per conferire un aspetto nichelato ad elementi in alluminio anodizzato senza l'impiego di nickel |
| US10557212B2 (en) | 2016-03-08 | 2020-02-11 | Chemeon Surface Technology, Llc | Electropolishing method and product |
| US10968532B2 (en) | 2016-11-30 | 2021-04-06 | H&H Research & Development, Llc | Method for electrolytic cleaning of aluminum |
| CN106894074B (zh) * | 2016-12-31 | 2019-10-22 | 常州银顺汽车零部件有限公司 | 一种汽车ecm支架的加工方法 |
| WO2018217701A1 (en) * | 2017-05-22 | 2018-11-29 | H&H Research & Development, Llc | Method for electrolytic cleaning of aluminum |
| JP7507089B2 (ja) | 2017-12-21 | 2024-06-27 | エコラボ ユーエスエー インコーポレイティド | 蛍光を発しない黒化光学部品 |
Family Cites Families (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT144637B (de) * | 1932-01-06 | 1936-02-10 | Ernest Windsor-Bowen | Verfahren zur anodischen Behandlung von Gegenständen aus Aluminium oder Aluminiumlegierungen. |
| FR994860A (fr) * | 1945-02-10 | 1951-11-23 | Alais & Froges & Camarque Cie | Perfectionnements aux traitement des surfaces d'articles en aluminium et en alliagesd'aluminium |
| FR1003126A (fr) * | 1946-12-07 | 1952-03-14 | Procédé pour nettoyer, doucir et brillanter les surfaces métalliques | |
| US2769265A (en) * | 1947-06-18 | 1956-11-06 | Boeing Co | Metal foil appliques and method of making same |
| BE484777A (enrdf_load_stackoverflow) * | 1947-09-24 | |||
| DE1178667B (de) * | 1960-05-17 | 1964-09-24 | Georg Friedrich Kutzschbauch | Verfahren zur Erzeugung von anodischen Schutzschichten aus Aluminium und seinen Legierungen |
| US3166444A (en) * | 1962-04-26 | 1965-01-19 | Lubrizol Corp | Method for cleaning metal articles |
| US3365380A (en) * | 1964-02-24 | 1968-01-23 | Kyowa Hakko Kogyo Kk | Electrolytic polishing solution and the process of polishing therewith |
| US3257244A (en) * | 1964-10-14 | 1966-06-21 | Reynolds Metals Co | Sealing and inhibiting corrosion of anodized aluminum |
| US3390063A (en) * | 1964-12-28 | 1968-06-25 | Kenneth C. Working | Electrolytes and method for anodizing aluminum |
| GB1174563A (en) * | 1966-02-26 | 1969-12-17 | Kenneth Edward Roberts | Production of Anodised Surfaces of Aluminium or Aluminium Alloys |
| FR2091651A5 (enrdf_load_stackoverflow) * | 1970-05-14 | 1972-01-14 | Aluminum Co Of America | |
| JPS5423663B2 (enrdf_load_stackoverflow) * | 1975-03-06 | 1979-08-15 | ||
| DE2515895A1 (de) * | 1975-04-11 | 1976-10-14 | Nipp & Co Ernst | Verfahren zum herstellen farbiger eloxalschichten auf aluminium und bauelement, insbesondere fuer die fassadenverkleidung |
| US4152222A (en) * | 1976-07-09 | 1979-05-01 | Alcan Research And Development Limited | Electrolytic coloring of anodized aluminium by means of optical interference effects |
| DE2732668C2 (de) * | 1977-07-20 | 1979-08-23 | Langbein-Pfanhauser Werke Ag, 4040 Neuss | Backform aus Aluminiumblech und Verfahren zu ihrer Herstellung |
| EP0005919B1 (en) * | 1978-05-22 | 1981-08-05 | Alcan Research And Development Limited | Process for sealing anodised aluminium and product so obtained |
| GB1569101A (en) * | 1978-05-31 | 1980-06-11 | British Aluminium Co Ltd | Electrobrightening of aluminium and aluminium-base alloys |
| DE2836803A1 (de) * | 1978-08-23 | 1980-03-06 | Hoechst Ag | Verfahren zur anodischen oxidation von aluminium und dessen verwendung als druckplatten-traegermaterial |
| DD142569A1 (de) * | 1979-03-22 | 1980-07-02 | Heidrun Below | Verfahren zum elektrolytischen glaenzen von aluminium und aluminiumlegierungen in einem alkalischen elektrolyten |
| DE2921241A1 (de) * | 1979-04-19 | 1980-10-23 | Alusuisse | Saurer zinn-ii-haltiger elektrolyt |
| ES8103205A1 (es) * | 1980-04-22 | 1981-02-16 | Empresa Nacional Aluminio | Proceso para colorear electroliticamente el aluminio y sus aleaciones |
| JPS58153800A (ja) * | 1982-03-10 | 1983-09-12 | Honda Motor Co Ltd | アルミニウム又はアルミニウム合金の電解研磨処理法 |
| CH654853A5 (de) * | 1982-08-07 | 1986-03-14 | Sandoz Ag | Verfahren zum verdichten von anodisch oxydierten aluminiumoberflaechen. |
| US4440606A (en) * | 1982-08-18 | 1984-04-03 | Aluminum Company Of America | Method for producing a solar selective coating on aluminum |
| WO1984000982A1 (en) * | 1982-09-03 | 1984-03-15 | Ffa Flug Fahrzeugwerke Ag | Recompression process |
| DE3233411A1 (de) * | 1982-09-09 | 1984-03-15 | Henkel KGaA, 4000 Düsseldorf | Verfahren zum verdichten von anodisch erzeugten oxidschichten auf aluminium oder aluminiumlegierungen |
| GB2137657A (en) * | 1983-03-24 | 1984-10-10 | Tec A Systems S A S Di Portiol | Sealing anodized surfaces of aluminium work pieces |
| ES522048A0 (es) * | 1983-05-03 | 1984-07-16 | Alvarez Sanchis Elia Mari | Procedimiento para la proteccion del aluminio, previamente anodizado. |
| US4647347A (en) * | 1984-08-16 | 1987-03-03 | Amchen Products, Inc. | Process and sealant compositions for sealing anodized aluminum |
| DE3500079A1 (de) * | 1985-01-03 | 1986-07-10 | Henkel KGaA, 4000 Düsseldorf | Mittel und verfahren zur erzeugung farbloser verdichtungsschichten auf anodisierten aluminiumoberflaechen |
| DE3522117A1 (de) * | 1985-06-20 | 1987-01-02 | Metall Und Oberflaechenchemie | Oberflaechenbehandlungsverfahren fuer aluminium und seine legierungen |
| DE3917186A1 (de) * | 1989-05-26 | 1990-11-29 | Happich Gmbh Gebr | Chemisches verfahren zur vermeidung eines regenbogeneffekts, der durch die beim glaenzen von teilen aus aluminium oder aluminiumlegierungen entstehende oxydschicht hervorgerufen wird |
| DE3917184A1 (de) * | 1989-05-26 | 1990-11-29 | Happich Gmbh Gebr | Glaenzverfahren |
-
1989
- 1989-05-26 DE DE3917188A patent/DE3917188A1/de active Granted
-
1990
- 1990-03-23 EP EP90105561A patent/EP0399172B1/de not_active Expired - Lifetime
- 1990-03-23 DE DE9090105561T patent/DE59002262D1/de not_active Expired - Fee Related
- 1990-05-23 US US07/528,130 patent/US5102508A/en not_active Expired - Fee Related
- 1990-05-28 JP JP2135543A patent/JPH0313596A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3917188C2 (enrdf_load_stackoverflow) | 1993-02-18 |
| JPH0313596A (ja) | 1991-01-22 |
| EP0399172A2 (de) | 1990-11-28 |
| JPH0577755B2 (enrdf_load_stackoverflow) | 1993-10-27 |
| DE59002262D1 (de) | 1993-09-16 |
| DE3917188A1 (de) | 1990-11-29 |
| EP0399172A3 (de) | 1991-06-12 |
| US5102508A (en) | 1992-04-07 |
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