EP2728041B1 - Coated aluminum strip and method for manufacturing - Google Patents
Coated aluminum strip and method for manufacturing Download PDFInfo
- Publication number
- EP2728041B1 EP2728041B1 EP12190670.5A EP12190670A EP2728041B1 EP 2728041 B1 EP2728041 B1 EP 2728041B1 EP 12190670 A EP12190670 A EP 12190670A EP 2728041 B1 EP2728041 B1 EP 2728041B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- passivation layer
- aluminum
- aluminum alloy
- applying
- 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.)
- Active
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims description 68
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 68
- 238000004519 manufacturing process Methods 0.000 title claims description 42
- 238000000034 method Methods 0.000 title claims description 31
- 238000002161 passivation Methods 0.000 claims description 78
- 229910000838 Al alloy Inorganic materials 0.000 claims description 60
- 238000000576 coating method Methods 0.000 claims description 59
- 239000011248 coating agent Substances 0.000 claims description 46
- 238000007743 anodising Methods 0.000 claims description 23
- 238000005238 degreasing Methods 0.000 claims description 21
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 12
- 239000010407 anodic oxide Substances 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 85
- 238000005260 corrosion Methods 0.000 description 33
- 230000007797 corrosion Effects 0.000 description 33
- 229910052751 metal Inorganic materials 0.000 description 17
- 239000002184 metal Substances 0.000 description 17
- 238000005520 cutting process Methods 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000002966 varnish Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 239000004922 lacquer Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- 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
- C25D11/024—Anodisation under pulsed or modulated current or potential
-
- 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
-
- 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
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- 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
- C25D11/005—Apparatus specially adapted for electrolytic conversion coating
-
- 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
- C25D11/24—Chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0614—Strips or foils
Description
- The invention relates to a method for manufacturing a strip for retortable food packages made of an aluminum alloy as well as to the use of a coated aluminum alloy strip, a retortable food package made of said aluminum alloy strip and an apparatus for carrying out the inventive method.
- Retortable and corrosion resistant aluminum or aluminum alloy strips are used for the manufacturing of packages like cans or cup-like food packages. In particular, foodstuffs often contain ingredients which can cause corrosion of aluminum or an aluminum alloy used for manufacturing the package of the grocery, for example a food can. Thus, the aluminum or the aluminum alloy of i.e. a food can has to be protected against corrosion. Commonly this is done by a coating which is applied onto the aluminum strip prior to forming the food package. Such a food package is known for example from the German patent application
DE 40 30 646 A1 . However, the conventional food package has several problems. On the one hand, when the coated aluminum strip or aluminum alloy strip is formed to the food package part i.e. by deep drawing the corrosion protecting coating sometimes shows damages. Thus, the corrosion protecting layer has to be provided with a greater thickness in order to prevent cracks or damages during deep drawing for example. On the other hand coating of a food package after deep drawing of the aluminum strip is expensive. - High resistance against corrosion induced by the contact with corrosion active media like water or rain is also a challenge with architectural sheets, which are used for example as facade sheets at the outer surface of buildings. For the architectural sheets it is very important that they do not change their appearance in the presence of aggressive substances incorporated in the air in cities or near industrial factories for years. Additionally, these sheets are formed by roll forming, bending, or drawing and are subjected to cutting processes, which leads to problems in the vicinity of locally high sheet deformation degrees or in the vicinity of cut edges. In particular coated architectural sheets have the problem that corrosion might lift up the coating which deteriorates the appearance of the sheets dramatically.
- A method for manufacturing an aluminum or aluminum alloy sheet or plate, which provides a high corrosion resistance is disclosed in
US 3,902,976 . According toUS 3,902,976 the aluminum or aluminum alloy sheet or plate is first anodized applying AC current in an electrolyte consisting of an aqueous solution of a mineral acid such as to form on the aluminum or aluminum alloy surface an aluminum oxide film and subsequently electrolytically treated in an aqueous solution of sodium silicate such as to form a durable abrasion resistant and corrosion-resistant barrier layer. This process has the disadvantage that rinsing after anodizing and rinsing after electro-silicating is on the one hand costly and it requires on the other hand permanent treating of waste water.DE 10 2011 002 837 A1 refers to a method of corrosion-proof pretreatment of tinplate. -
DE 195 08 126 A1 discloses a method for optimizing paint adhesion on metal surfaces, in particular on aluminum surfaces, wherein the metal surface is anodized in an acid electrolyte and subsequently brought into contact with a further liquid solution. -
WO 99/19086 -
US 2004/0054044 A1 discloses different coatings of a metal sheet surface, but does not show any hints to retortable food packages. The same applies also to the German patent applicationDE 102 27 362 A1 . - A method for manufacturing an aluminum strip, wherein the method comprises the steps of anodizing the strip and subsequently applying a passivation layer by immersing the strip into an immersion bath is known from
EP 0 127 774 A2 . - Therefore, it is an object of the present invention to provide a cost effective method for manufacturing an aluminum alloy strip for retortable food packages, which provide a much better corrosion behavior. Furthermore, it is an object of the present invention to provide an advantageous use of an aluminum alloy strip for retortable food package, a formed retortable food package made of the aluminum alloy strip as well as an apparatus for carrying out the inventive manufacturing method.
- According to a first teaching of the present invention the above mentioned object is solved by a method for manufacturing a strip for retortable food packages made of an aluminum alloy comprising the steps of:
- degreasing and anodizing the surface of the strip by immersing the strip in an acid electrolyte bath and applying AC current, wherein the degreasing and anodizing the surface of the strip leads to an artificially grown oxide layer, optionally followed by a desmutting step and
- applying a passivation layer on the surface of the strip by a no-rinse coil coating process,
- wherein the applied passivation layer has a thickness of 2 to 10 g/m2.
- It was found out by the invention that an aluminum strip or an aluminum alloy strip which has been applied to the aforementioned manufacturing steps offers a very good corrosion resistant and additionally a very good adhesion for an additional top coating which allows making i.e. food packages by deep drawing the aluminum strip without damaging the top coating during the deep drawing step. Also architectural sheets can be manufactured from these above mentioned aluminum or aluminum alloy strips comprising an improved corrosion resistance. The optional desmutting step improves application of the passivation layer after immersing in the electrolyte bath. Degreasing and anodizing the surface of the aluminum or aluminum alloy strip by immersing the strip in an acidic electrolyte bath and applying AC-current leads to an artificially grown oxide layer which provides a very good corrosion resistant compared to the natural oxide layer which is built up after manufacturing, i.e. after rolling. The passivation layer on the other hand provides a very good adhesion for a top coating since adhesion properties of an artificially grown oxide layer are usually low. Thus, i.e. retortable food packages can be manufactured with an aluminum alloy strip, which has a very good resistance against filling goods and a very high adhesion for a top coating. Additionally, coated architectural sheets take benefit of the inventive manufacturing steps in that they have a much better corrosion resistance and the improved adhesion of a coating on the inventively manufactured strip contrary to conventional architectural sheets.
- In order to improve the corrosion resistance according to an embodiment of the present invention during the degreasing and anodizing step a new oxide layer with a thickness of 50 nm to 300 nm is built on the surface of the strip. Preferably an oxide layer of 50 nm to 160 nm is built since it allows achieving the intended corrosion resistance combined with satisfying manufacturing speeds.
- According to a next embodiment the degreasing and anodizing of the surface of the strip and optionally the desmutting of the strip are carried out inline with applying the passivation layer on the strip. Carrying out the manufacturing strips inline means that the manufacturing steps are made without coiling and decoiling the metal strip between those steps. This allows to optimize productivity of the inventive method as well as to reduce production time and expenses to manufacture such aluminum or aluminum alloy strips.
- According to a next embodiment of the present invention said degreasing and anodizing step is carried out with a sulfuric acid at a concentration of 10 wt.-% to 25 wt.-% as electrolyte with a temperature of 65°C to 90°C by applying an AC-current density of 2 to 25 A/dm2 for an immersing time of the strip of 1.5 s to 10 s. It has been found out that the mentioned range of parameters regarding the electrolyte bath, the concentration of the sulfuric acid, the temperature range and the density of the AC-current as well as the immersing time provides the possibility to increase the manufacturing speed. These parameters allow high speed growth of the intended corrosion inhibiting oxide layer as well as an effective removal of surface contaminations of the aluminum strip which are caused by the manufacturing process like cold rolling. In particular good results has been achieved by an AC-current with a frequency of 50 Hz and a current density of 4 to 22 A/dm2 with a temperature of 75 to 85°C with a sulfuric acid comprising 15 wt.-% as a concentration and a contact time of 3 to 6 s.
- The passivation layer is according to a next embodiment based on a chromate-free passivation or a zirconium or titan passivation. A chromate-free passivation as well as the passivation layer based on a zirconium or titan passivation has the advantage that during production less harmful materials are used.
- A very high accuracy of the thickness of the passivation layer is achieved in that the passivation layer is coated by using roller coaters.
- According to the present invention the applied passivation layer has a thickness of 2 to 10 g/m2, in particular 4 to 7 g/m2 of the wet film which allows achieving the desired adhesion properties of the aluminum or aluminum strip.
- To ensure a precise control of the thickness of the passivation layer according to a further embodiment of the present invention applying the passivation layer is controlled by an inline measurement.
- Furthermore, according to a next embodiment after applying and drying the passivation layer of the strip at least one further coating is applied onto the passivation layer of the strip. As already outlined the adhesion properties of a passivation layer on the strips are very good in particular for polymer coatings or lacquered coatings. In particular during forming processes like deep drawing it has been shown that such an additional coating is not damaged during forming of the aluminum strip to a formed metal part like i.e. a cup-like food package or a coated architectural sheets, since the adhesion properties of the manufactured aluminum strips are very good. This applies in particular for a single-layer varnish top coatings and polymer coatings.
- According to a further embodiment, the degreasing and anodizing step and the step of applying the passivation layer are carried out inline with applying of a further coaling onto the passivation layer. The expenses to manufacture an aluminum strip of which formed metal parts for grocery packages or coated architectural sheets can be manufactured are decreased significantly. Additionally, the quality of the top coating is increased significantly, so that the following production steps like forming, drawing, roll forming, bending can be accomplished with very low defective products.
- According to a next teaching of the present invention the above mentioned object is solved by an aluminum or aluminum alloy strip manufactured by the inventive method comprising an anodic oxide layer with a thickness of 50 to 300 nm, preferably 50 to 160 nm and a chromate-free passivation layer on the oxide layer. As already outlined such an aluminum or aluminum alloy strip comprises a very good corrosion resistance because of the artificially grown oxide layer on top of the aluminum layer and as well as very good adhesion properties for a top coating which allows to produce formed metal parts like food packages or coated architectural sheets. Nevertheless, this applies to all coated formed metal parts made of aluminum or an aluminum alloy strip.
- According to a next embodiment the strip additionally comprises an organic coating on top of the passivation layer, wherein preferably the organic coating is a lacquer, preferably a single-layer varnish or a polymer coating. Organic coatings protect the aluminum layer additionally from the influence of the corrosive parts of for example groceries or corrosive components in the environment. The aluminum or aluminum alloy strip comprising the additional organic coating can be easily manufactured to formed metal parts for example by deep drawing, such as cup-like food packages or architectural sheets. Both comprise very good properties with respect to the corrosion resistance. Coatings for architectural sheets are based on for example pclyurethane, polyamide, polyester, high durable polyester PVDF-systems etc..
- In order to provide the different desired properties with regard to the mechanical strength, formability and recyclability according to an embodiment the aluminum or aluminum alloy strip comprises an aluminum alloy of the type AA1xxx, AA3xxx, AA5xxx or AA8xxx. For food packages the thickness of the strips are preferably between 0,05 mm to 1 mm. However, architectural sheets preferably have a thickness of between 0,15 mm and 2 mm.
- Furthermore, the above mentioned object is solved by a formed metal part made of an aluminum or aluminum alloy strip manufactured according to the present invention. The formed metal parts according to the present invention comprise a high resistance against damages of the top coating during forming operations of the metal parts. The inventive formed metal part can be manufactured with a very low ratio of defective products.
- Preferably according to another embodiment the formed metal part is a package for groceries or an architectural sheet. The packages for groceries have to provide different properties like formability, high corrosion resistance and a top coating which should be biocompatible. Preferably, these top coatings are made of a polymer resin or a lacquer more preferably a single-layer varnish. Due to the good adhesion properties of the aluminum or aluminum alloy strip of the present invention comprising the artificial oxide layer and the passivation layer a package for groceries made of the inventive aluminum or aluminum strip can be produced with lower expenses and insures a very high level of package quality. The architectural sheet has to provide a very good corrosion resistance as well as very good adhesion properties for the top coating which is applied commonly on both sides of sheet. Typical architectural sheets are façade components, roller shutters and façade structural components which are in permanent contact with water, i.e. rain and the humidity of the air.
- Finally the above mentioned object is solved by an apparatus for carrying out the inventive manufacturing method comprising:
- an uncoiler for uncoiling a strip made of aluminum or aluminum alloy,
- means for degreasing and anodizing The strip by immersing the strip into a bath of an acid electrolyte and means to apply an AC current to the strip,
- optionally means for desmutting the anodized strip,
- means to apply a no-rinse coil coating passivation on the strip surface,
- means to dry the passivation layer on the strip and
- a recoiler for recoiling the strip.
- With the inventive apparatus it is possible to manufacture a coated aluminum strip with the inventive manufacturing method without coiling and decoiling the strip between the step of degreasing and anodizing and the application of the passivation layer. With the aforementioned apparatus it is possible to provide a coil of an aluminum or aluminum alloy strip comprising an anodic oxide layer with the thickness of 50 nm to 300 nm, preferably 50 nm to 160 nm and comprising a passivation layer, in particular a chromate-free passivation layer on top of the anodic oxide layer. Means to dry the passivation layer allow a quick coiling of the passivated aluminum strip. The optional means for desmutting the anodized strip allow a quick preparing of the aluminum strip for the application of the passivation layer in the next manufacturing step. Such a coil can be coated easily with a top coating for a desired package, wherein the coating can be adapted to the particular application like food packages or architectural sheets.
- Furthermore, according to a next embodiment of the inventive apparatus the apparatus comprises additionally means to coat the strip with a top coating on the passivation layer. An organic coating on the passivation layer may serve to improve the properties for forming food packages by deep drawing as well as providing additionally a protection for corrosion.
- The inventive method, aluminum strip, formed metal part and apparatus for manufacturing such an aluminum strip according to further embodiments are described below in connection with the drawings. The drawings show in
- Fig. 1
- a schematical sketch of the different manufacturing steps of an embodiment,
- Fig. 2
- an embodiment of an inventive apparatus for manufacturing a coated aluminum or aluminum alloy strip,
- Fig. 3a, b)
- a comparison between a conventional formed metal part and an inventive formed metal part according to a further embodiment,
- Fig. 4
- a microscopic sectional view of an inventive embodiment after degreasing an anodizing step,
- Fig. 5a, b)
- a perspective view and a sectional view of an architectural sheet and
- Fig. 6)
- a further architectural sheet in the form of a roller shutter in a perspective view.
- At first
Fig. 1 shows in a schematical view the different manufacture steps A, B, C, D and E on the right side and on the left side sectional views of the strip resulting from step B, C, D and E and with respect to step A a sectional view of an aluminum or aluminum alloy strip with which the shown embodiment starts with. - An aluminum alloy strip made of the aluminum alloys of type AA1xxx, AA3xxx, AA5xxx or AA8xxx is the starting point of the inventive manufacturing process. The thickness of the strip depends on the application. In general the thicknesses of the aluminum or aluminum alloy strip is between 0,05 mm and 2,5 mm, preferably for food packages between 0,05 mm and 1,0 mm and for architectural sheets between 0,15 mm and 2,0 mm. As shown the
aluminum alloy strip 1 prior to step A with comprises on top of the aluminium alloy strip 1 afirst layer 2 which is the natural oxide layer of the strip comprising additionally undesirable contaminations. The oxide layer and the contaminations present in the surface of the aluminum or aluminum alloy strip result from the rolling process of the strip. Such a strip is uncoiled in the step A and is provided to a degreasing and anodizingstep 3. The degreasing an anodizing step is preferably carried out with a sulfuric acid at a concentration of 10 wt.-% to 25 wt.-%, preferably 12 wt.-% to 17 wt.-% as an electrolyte with a temperature of 65°C to 90°C by applying an AC-current density of 2 to 25 A/dm2, preferably 4 to 22 A/dm2 for an immersing time of the strip of 1.5 s to 10 s, preferably 3 to 6 s. As shown on the left side of step B thealuminum alloy strip 1 now comprises an artificially grownanodic oxide layer 3 on top of the surface of thealuminum strip 1. Compared to the naturally given oxide layer with a thickness of 5 nm to 10 nm the degreased and anodized aluminum or an aluminum alloy strip comprises an oxide layer with a thickness of 50 nm to 300 nm, preferably 50 nm to 160 nm. Due to the thickness of the oxide layer the aluminum below the oxide layer is protected effectively against corrosion. In the present drawings the thicknesses of the different layers are not true to scale. - Such a strip is now provided to the next manufacturing step C according which a
passivation layer 4 is applied on top of theoxide layer 3. However, optionally a desmutting step B' can be applied to the degreased and anodized strip in order to provide an optimized surface for applying the passivation layer. - Although the present embodiment shows that the
passivation layer 4 is applied on both sides of thealuminum strip 1 it is possible that only on one side a passivation layer is applied to the aluminum strip. The passivation layer has a thickness of 2 to 10 g/m2 of the wet film before drying the no-rinse passivation layer. In particular it is advantageously to apply a passivation layer which is chromate-free or a zirconium or titan passivation. The zirconium or titan passivation is one particular chromate-free passivation. With a chromate-free passivation layer the use of harmful substances during production can be avoided. Architectural sheets as well as food packages take benefit of the improved adhesion properties caused by the passivation layer of the strip in the view of the adhesion of the top coating. - After applying the passivation layer in manufacturing step C the aluminum strip or aluminum alloy strip may be recoiled because after passivation the aluminum strip or aluminum alloy strip can be stored in step C' in order to optimize production capacity. After storage in step C' or subsequently after step C the strip is coated in the next manufacturing step D with a top coating on top of the passivation layer. As shown on the left side of step D the sectional view of the
aluminum alloy strip 1 shows that the strip now comprises anouter layer 5 which may be anorganic coating 5 consisting of a lacquer, i.e. a one-layer varnish or for example of a polymer coating. - According to step E the
aluminum alloy strip 1 of step D can be easily manufactured to a cup like food package as shown on the left side of step E. As can be realized by the sectional view inFig. 1 at step E the coated aluminum strip according to step D is preferably formed into a food package or an architectural sheet by deep drawing or other forming techniques, like roll forming or the like. In step E the strip may be cut into sheets first and is formed subsequently to food package or architectural sheet. However, it is also possible to form first the product by forming the strip and than cutting the strip into separate products. - The advantage of the inventive aluminum or aluminum alloy strip is that during deep drawing or other forming steps to build a food package or
architectural sheet 6 as shown on the left side to step E thetop coating 5 of the aluminum or aluminum alloy strip is not damaged. This is caused by the good adhesion properties of the passivation layer manufactured by said no-rinse step. - An embodiment of an inventive apparatus for carrying out the inventive manufacturing process is shown in a schematical view in
Fig. 2 . At first using anuncoiler 7 an aluminum or analuminum alloy strip 1 is uncoiled and provided to a degreasing and anodizing step B in which the degreasing and anodizing is carried out by using sulfuric acid under the condition already outlined under manufacturing step B ofFig. 1 . In step B' the aluminum oraluminum alloy strip 1 is desmutted and optionally dried. - The aluminum strip or
aluminum alloy strip 1 is than provided to a device which carries out the manufacturing step C which applies a passivation layer onto the surface of the strip by using a no-rinse coil coating application. As indicated inFig. 2 application of the passivation layer is preferably done by using roller coaters C1 and C2. Means to measure the passivation layer thickness are not shown inFig. 2 but are advantageously used to control the thickness of the passivation layer. Indevice 8 the no-rinsepassivation layer 4 which is preferably a chromate-free passivation layer or a zirconium or titan passivation layer is dried and indevice 9 the aluminum strip is cooled again. In general it is possible to coil thecoated strip 1 now, because due to the passivated surface of the strip it is possible to store a coil of the strip with such a coating without problems. - According to the present embodiment shown in
Fig. 2 , however, the aluminum oraluminum alloy strip 1 is provided inline to a further coating step D in which atop coating 5 is applied onto the aluminum strip or aluminum alloy strip. Preferably, for applying the top coat a roller coater is used again. However, depending from the particular coating other coating methods can be applied, too. The top coat is than dried in device 8' and the aluminum oraluminum alloy strip 1 is cooled down in device 9' in order to prepare thealuminum strip 1 for recoiling onrecoiler 10. -
Fig. 3a ) and b) show photos of an exemplary embodimentFig. 3a ) and an inventive embodiment,Fig. 3b ). The exemplary embodimentFig. 3a ) comprises a top coating which is damaged at a specific location of the deep drawnfood package 11 shown inFig. 3a ) which is caused by a low adhesion of the top coating on the surface of the aluminum alloy strip. As shown inFig. 3b ) the deep drawn inventive embodiment does not have any damages in the top coating of thefood package 11. -
Fig. 4 shows theanodic oxide layer 12 having a thickness of nearly to 100 nm in a micro section. The combination of the relatively thick anodic oxide layer of 50 nm up to 300 nm which provides a very effective corrosion resistant together with the use of a passivation layer applied by no-rinse coil coating process allows to produce an aluminum strip or aluminum alloy strip which provides very good corrosion resistance combined with a good adhesion for top coatings. Thus, aluminum or aluminum alloy strip according to the present invention can be used very easily to manufacture food packages or i.e. architectural sheets, which comprise necessarily a top coating and which are formed by applying forming operations to a coated strip or coated sheet. - Finally,
Fig. 5 shows anarchitectural sheet 13. Thearchitectural sheet 13 comprises a plurality ofcuttings 14 andbended parts 13a. Preferably the cuttings are made into thearchitectural sheet 13 after applying the inventive method, thus the inventive method is applied to an aluminum strip without cuttings. The strip is than coated with a top coat which can be made of a polymer. Although, cuttings are made into the architectural sheet after applying the method the architectural sheet has a good corrosion resistance due to the excellent corrosion resistance and adhesion properties of the coated areas. Furthermore, bending of the flat strip to a bended architectural sheet as shown inFig. 5b ) does not change the corrosion resistance, since the architectural sheet has beside the corrosion resistance of the anodic oxide layer very good adhesion properties for its top coating. - Another application of an architectural sheet is the
roller shutter 15 shown inFig. 6 . A roller shutter made from an aluminum alloy strip treated with the inventive method offers higher corrosion resistance combined with a very good adhesion of the top coating on the passivation layer. In particular the good adhesion properties of the passivation layer combined with the high corrosion resistance of the anodic oxide layer leads to less defective goods during production of theroller shutter 15, in particular during rollforming of the coated strip. Furthermore, theroller shutter 15 comprises excellent corrosion resistance even in the vicinity of cuttings of the roller shutter (not shown in the drawings).
Claims (15)
- Method for manufacturing a strip for retortable food packages made of an aluminum alloy comprising the steps of:- degreasing and anodizing the surface of the strip by immersing the strip in an acid electrolyte bath and applying AC current, wherein the degreasing and anodizing the surface of the strip leads to an artificially grown oxide layer, optionally followed by a desmutting step and- applying a passivation layer on the surface of the strip using a no-rinse coil coating process,- the applied passivation layer has a thickness of 2 to 10 g/m2 of the wet film.
- Method according to claim 1,
characterized in that,
during the degreasing and anodizing step a new oxide layer with a thickness of 50 nm to 300 nm is built on the surface of the strip. - Method according to claim 1 or 2,
characterized in that,
the degreasing and anodizing of the surface of the strip and optionally the desmutting of the strip are carried out inline with applying the passivation layer on the strip. - Method according to one of claim 1 to 3,
characterized in that, degreasing and anodizing step is carried out with a sulfuric acid at a concentration of 10 wt.-% to 25 wt.-% as electrolyte with a temperature of 65°C to 90°C by applying an AC-current density of 2 to 25 A/dm2 for an immersing time of the strip of 1,5 s to 10 s. - Method according to one of claim 1 to 4,
characterized in that, passivation layer is based on a chromate-free passivation or a zirconium or titan passivation. - Method according to one of claim 1 to 5,
characterized in that,
the passivation layer is coated by using roller coaters. - Method according to one of claim 1 to 6,
characterized in that,
applying passivation layer is controlled by an inline measurement. - Method according to one of claim 1 to 7,
characterized in that,
after applying and drying the passivation layer at least one further coating is applied onto the passivation layer of the strip. - Method according to one of claim 1 to 8,
characterized in that,
the degreasing and anodizing step and the step of applying the passivation layer are carried out inline with applying of a further coating onto the passivation layer. - Use of an aluminum alloy strip for retortable food packages manufactured by a method according to claim 1 to 9 comprising an anodic oxide layer with a thickness of 50 to 300 nm and a chromate-free passivation layer on the oxide layer, wherein the applied passivation layer has a thickness of 2 to 10 g/m2 of the wet film.
- Use according to claim 10,
characterized in that,
the strip additionally comprises an organic coating on top of the passivation layer. - Use according to claim 10 or 11,
characterized in that,
the strip comprises an aluminum alloy of the type AA1xxx, AA3xxx, AA5xxx or AA8xxx. - A formed food package made of an aluminum alloy strip of claim 10 to 12.
- Apparatus for carrying out a method according to claim 1 to 8 comprising:- an uncoiler for uncoiling a strip made of aluminum or aluminum alloy,- means for degreasing and anodizing the strip by immersing the strip into a bath of an acid electrolyte and means to apply an AC current to the strip,- optionally means for desmutting the anodized strip,- means to apply a no-rinse coil coating passivation on the strip surface,- means to dry the passivation layer on the strip and- a recoiler for recoiling the strip.
- Apparatus according to claim 14,
characterized in that,
the apparatus comprises additionally means to coat the strip with a top coating on the passivation layer.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES12190670.5T ES2619427T3 (en) | 2012-10-30 | 2012-10-30 | Coated aluminum band and manufacturing method |
DK12190670.5T DK2728041T3 (en) | 2012-10-30 | 2012-10-30 | Coated aluminum strip and method of manufacture |
EP12190670.5A EP2728041B1 (en) | 2012-10-30 | 2012-10-30 | Coated aluminum strip and method for manufacturing |
PCT/EP2013/072593 WO2014067937A1 (en) | 2012-10-30 | 2013-10-29 | Coated aluminum strip and method for manufacturing |
RU2015120646A RU2639166C2 (en) | 2012-10-30 | 2013-10-29 | Coated aluminium strip and method of its production |
CN201380057385.9A CN104822865B (en) | 2012-10-30 | 2013-10-29 | Coated aluminum strip and method for manufacturing |
CA2890114A CA2890114C (en) | 2012-10-30 | 2013-10-29 | Coated aluminum strip and method for manufacturing |
SA515360357A SA515360357B1 (en) | 2012-10-30 | 2015-04-29 | Coated aluminum strip and method for manufacturing |
ZA2015/02934A ZA201502934B (en) | 2012-10-30 | 2015-04-29 | Coated aluminum strip and method for manufacturing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12190670.5A EP2728041B1 (en) | 2012-10-30 | 2012-10-30 | Coated aluminum strip and method for manufacturing |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2728041A1 EP2728041A1 (en) | 2014-05-07 |
EP2728041B1 true EP2728041B1 (en) | 2017-01-11 |
Family
ID=47088747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12190670.5A Active EP2728041B1 (en) | 2012-10-30 | 2012-10-30 | Coated aluminum strip and method for manufacturing |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP2728041B1 (en) |
CN (1) | CN104822865B (en) |
CA (1) | CA2890114C (en) |
DK (1) | DK2728041T3 (en) |
ES (1) | ES2619427T3 (en) |
RU (1) | RU2639166C2 (en) |
SA (1) | SA515360357B1 (en) |
WO (1) | WO2014067937A1 (en) |
ZA (1) | ZA201502934B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108149295A (en) * | 2017-12-26 | 2018-06-12 | 北京派尔特医疗科技股份有限公司 | Semi-automatic silk material differential arc oxidation system and its oxidation, cleaning equipment and method |
CN114892236A (en) * | 2022-04-08 | 2022-08-12 | 辽宁忠旺集团有限公司 | Aluminum alloy alternating-current anodic oxidation process |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999019086A1 (en) * | 1997-10-13 | 1999-04-22 | Alcan International Limited | Coated aluminium workpiece |
DE10227362A1 (en) * | 2002-06-19 | 2004-01-08 | Basf Ag | Complexing agent for the treatment of metal and plastic surfaces |
US20040054044A1 (en) * | 2000-10-11 | 2004-03-18 | Klaus Bittner | Method for coating metallic surfaces with an aqueous composition, the aqueos composition and use of the coated substrates |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3902976A (en) * | 1974-10-01 | 1975-09-02 | S O Litho Corp | Corrosion and abrasion resistant aluminum and aluminum alloy plates particularly useful as support members for photolithographic plates and the like |
ES8406565A1 (en) * | 1983-05-03 | 1984-07-16 | Alvarez Sanchis Elia Mari | Process for protecting anodised aluminium. |
DE4030646A1 (en) | 1990-09-25 | 1992-04-02 | Effem Gmbh | BOWL PACK |
DE19508126A1 (en) * | 1995-03-08 | 1996-09-12 | Henkel Kgaa | Chrome-free process for improving paint adhesion after thin-layer anodization |
CN1236109C (en) * | 1999-09-29 | 2006-01-11 | 欧罗巴金属公开有限公司 | Electrochemical method for forming inorganic covering layer on surface of copper material |
US10041176B2 (en) * | 2005-04-07 | 2018-08-07 | Momentive Performance Materials Inc. | No-rinse pretreatment methods and compositions |
RU2354759C1 (en) * | 2007-09-24 | 2009-05-10 | Государственное образовательное учреждение высшего профессионального образования Пензенская государственная технологическая академия | Method for production of coatings |
RU2424381C1 (en) * | 2010-06-07 | 2011-07-20 | Государственное образовательное учреждение высшего профессионального образования "Тверской государственный технический университет" | Procedure for application of wear resistant coating on aluminium and its alloys |
DE102011002837A1 (en) * | 2011-01-18 | 2012-07-19 | Henkel Ag & Co. Kgaa | Multi-stage pre-treatment of tinplate before painting |
-
2012
- 2012-10-30 DK DK12190670.5T patent/DK2728041T3/en active
- 2012-10-30 ES ES12190670.5T patent/ES2619427T3/en active Active
- 2012-10-30 EP EP12190670.5A patent/EP2728041B1/en active Active
-
2013
- 2013-10-29 CA CA2890114A patent/CA2890114C/en not_active Expired - Fee Related
- 2013-10-29 WO PCT/EP2013/072593 patent/WO2014067937A1/en active Application Filing
- 2013-10-29 CN CN201380057385.9A patent/CN104822865B/en not_active Expired - Fee Related
- 2013-10-29 RU RU2015120646A patent/RU2639166C2/en active
-
2015
- 2015-04-29 SA SA515360357A patent/SA515360357B1/en unknown
- 2015-04-29 ZA ZA2015/02934A patent/ZA201502934B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999019086A1 (en) * | 1997-10-13 | 1999-04-22 | Alcan International Limited | Coated aluminium workpiece |
US20040054044A1 (en) * | 2000-10-11 | 2004-03-18 | Klaus Bittner | Method for coating metallic surfaces with an aqueous composition, the aqueos composition and use of the coated substrates |
DE10227362A1 (en) * | 2002-06-19 | 2004-01-08 | Basf Ag | Complexing agent for the treatment of metal and plastic surfaces |
Also Published As
Publication number | Publication date |
---|---|
CA2890114A1 (en) | 2014-05-08 |
CN104822865A (en) | 2015-08-05 |
RU2015120646A (en) | 2016-12-20 |
WO2014067937A1 (en) | 2014-05-08 |
RU2639166C2 (en) | 2017-12-20 |
CA2890114C (en) | 2016-07-19 |
ZA201502934B (en) | 2017-07-26 |
DK2728041T3 (en) | 2017-03-20 |
ES2619427T3 (en) | 2017-06-26 |
EP2728041A1 (en) | 2014-05-07 |
SA515360357B1 (en) | 2016-11-13 |
CN104822865B (en) | 2017-02-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5861215A (en) | Light-gage composite-coated flat-rolled steel manufacture and product | |
TWI418653B (en) | A method for producing a steel sheet for a container material having a low environmental burden, a method for producing the same, and a method for producing the same, | |
JP6675314B2 (en) | Method for producing low undulation components from electrogalvanized metal sheets, corresponding components and vehicles | |
WO2012036203A1 (en) | Steel plate for containers and manufacturing method for same | |
JP5729230B2 (en) | Steel plate for container and method for producing the same | |
WO2011118846A1 (en) | Surface treated steel plate, manufacturing method therefor, and resin-coated steel plate using same | |
EP2728041B1 (en) | Coated aluminum strip and method for manufacturing | |
CN212555318U (en) | Coating wire drawing color-coated sheet | |
WO2017018286A1 (en) | Surface-treated steel sheet, method for producing same, and container using said surface-treated steel sheet | |
CA3162200C (en) | Method for manufacturing laminated tinplate, a laminated tinplate produced thereby and use thereof | |
JP5462159B2 (en) | Resin-coated steel sheet capable of providing a squeezed iron can excellent in glitter and a method for producing the same | |
JP2010137475A (en) | Resin-coated aluminum sheet with excellent resin adhesiveness | |
US20230220579A1 (en) | Method for passivating a tinplate strip and apparatus for producing said passivated tinplate strip | |
EP2499272B1 (en) | Process for production of magnesium containing aluminium strip or web material with improved adhesion | |
JPS61177378A (en) | Chromated cr-containing steel sheet having superior suitability to coating with paint | |
JP3546834B2 (en) | Painted strip of magnesium alloy and method of manufacturing the same | |
JPS61257420A (en) | Production of steel foil having excellent workability and adhesiveness | |
JP6643808B2 (en) | Metal can manufacturing method | |
JPS61288081A (en) | Chromated highly corrosion resistant steel sheet having superior paintability and corrosion resistance | |
JPH11256395A (en) | Al alloy material for cargo plane excellent in water resistance and rust resistance | |
JPS61253377A (en) | Chromated cr-containing steet having superior suitability to painting and superior strength characteristic |
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 |
|
17P | Request for examination filed |
Effective date: 20121030 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
17P | Request for examination filed |
Effective date: 20140902 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
17Q | First examination report despatched |
Effective date: 20151027 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: C25D 11/24 20060101ALI20160802BHEP Ipc: C25D 17/00 20060101ALN20160802BHEP Ipc: C23C 28/04 20060101ALI20160802BHEP Ipc: C25D 11/02 20060101AFI20160802BHEP Ipc: C25D 11/00 20060101ALI20160802BHEP Ipc: C25D 7/06 20060101ALN20160802BHEP |
|
INTG | Intention to grant announced |
Effective date: 20160901 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 861365 Country of ref document: AT Kind code of ref document: T Effective date: 20170115 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602012027662 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 Effective date: 20170315 |
|
REG | Reference to a national code |
Ref country code: NO Ref legal event code: T2 Effective date: 20170111 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20170111 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 861365 Country of ref document: AT Kind code of ref document: T Effective date: 20170111 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2619427 Country of ref document: ES Kind code of ref document: T3 Effective date: 20170626 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170511 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 |
|
REG | Reference to a national code |
Ref country code: GR Ref legal event code: EP Ref document number: 20170400723 Country of ref document: GR Effective date: 20170804 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170411 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170511 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602012027662 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 |
|
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 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 |
|
26N | No opposition filed |
Effective date: 20171012 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20171030 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171031 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171031 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171030 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171030 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20171031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171030 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171030 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20121030 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20170111 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 602012027662 Country of ref document: DE Owner name: SPEIRA GMBH, DE Free format text: FORMER OWNER: HYDRO ALUMINIUM ROLLED PRODUCTS GMBH, 41515 GREVENBROICH, DE |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230519 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GR Payment date: 20231026 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20231123 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20231002 Year of fee payment: 12 Ref country code: NO Payment date: 20231025 Year of fee payment: 12 Ref country code: IT Payment date: 20231025 Year of fee payment: 12 Ref country code: FR Payment date: 20231024 Year of fee payment: 12 Ref country code: DK Payment date: 20231027 Year of fee payment: 12 Ref country code: DE Payment date: 20231024 Year of fee payment: 12 |