EP0062803A1 - Metallized recording paper and process for its manufacture - Google Patents
Metallized recording paper and process for its manufacture Download PDFInfo
- Publication number
- EP0062803A1 EP0062803A1 EP82102490A EP82102490A EP0062803A1 EP 0062803 A1 EP0062803 A1 EP 0062803A1 EP 82102490 A EP82102490 A EP 82102490A EP 82102490 A EP82102490 A EP 82102490A EP 0062803 A1 EP0062803 A1 EP 0062803A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lacquer
- metal
- layer
- paper
- coated
- 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
- 238000000034 method Methods 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 14
- 239000012764 mineral filler Substances 0.000 claims abstract description 12
- 239000000049 pigment Substances 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000007738 vacuum evaporation Methods 0.000 claims abstract description 5
- 239000002966 varnish Substances 0.000 claims abstract description 4
- 239000004922 lacquer Substances 0.000 claims description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 4
- 239000001993 wax Substances 0.000 description 19
- 239000003973 paint Substances 0.000 description 13
- 239000006224 matting agent Substances 0.000 description 7
- 239000000839 emulsion Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 5
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000012170 montan wax Substances 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
- B41M5/245—Electroerosion or spark recording
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
- Y10T428/24901—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material including coloring matter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
- Y10T428/24909—Free metal or mineral containing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24934—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including paper layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/259—Silicic material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31801—Of wax or waxy material
- Y10T428/31804—Next to cellulosic
- Y10T428/31808—Cellulosic is paper
Definitions
- the invention relates to metal registration papers on the basis of metallized lacquer layers applied to paper and to a method for their production. These papers are used in registration processes in electronic data processing.
- nitro lacquer which contains zinc stearate as a matting agent.
- These coatings are made from nitro lacquers that contain organic solvents. They contain zinc stearate as a matting agent because it has been found that mineral fillers cannot be used as matting agents in these coatings.
- the wafer-thin metal layer is removed at very specific points and the lacquer layer is exposed.
- highly sensitive metal brushes In the presence of mineral fillers in the paint film, the abrasion is so great that the brushes often have to be replaced. Since zinc stearate does not produce such abrasion, only this matting agent could be used.
- Lacquer layers which is characterized in that a lacquer layer is arranged firmly adhering to a paper, in which mineral fillers and / or pigments in combination with wax particles are embedded and the outer surface of the lacquer layer is coated with a metal layer.
- the lacquer layer is preferably arranged on an endless paper web.
- the mineral filler and / or pigment particles embedded in the lacquer layer are preferably covered by a wax coating.
- the lacquer layer contains embedded amorphous silica with a refractive index of 1.45-1.47. In this way, the paint layer appears transparent and matt. It is particularly advantageous that the amorphous silica particles are coated with a wax coating.
- the outer surface of the lacquer layer is coated with a metal layer produced by vacuum evaporation, which is usually and in the preferred case an aluminum layer.
- the paint layer is deep black pigmented and dull matt. At the points where the aluminum layer is removed from the paint layer, the aluminum surface appears white against a deep black background.
- the metal registration papers according to the invention can be produced by applying an aqueous varnish to a paper or paper web which contains mineral fillers and / or pigments, at least some of the filler and / or pigment particles being coated with a wax coating, and by after the coating film has hardened, the surface of the film is coated in a known manner by vacuum evaporation with a metal layer.
- An aluminum layer is preferably evaporated in vacuo as the metal layer.
- the aqueous lacquer used for the production according to the invention can be a dispersion lacquer, as are commercially available.
- Preferred dispersion paints are based on acrylic resin.
- acid-curing aqueous paints are preferably used.
- film formers they contain melamine-formaldehyde condensation products etherified with methanol, which are softened by water-soluble unsaturated or saturated polyester resins.
- Such acid-curing aqueous paints are also commercially available. They are hardened shortly before processing by the addition of acid.
- the addition of acid also means that the zinc stearate used as a matting agent in the nitro lacquers cannot be used in the aqueous lacquers because zinc stearate is decomposed by acids.
- the preferred matting agent in the aqueous paints is amorphous silica. It also has the further advantage that it has a refractive index of 1.45-1.47, which corresponds to the refractive index of the film former, so that the coating looks transparent and is matt to dull matt, depending on the amount of matting agent added.
- the aqueous lacquers contain a solid of 50-70% by weight ready for processing. They do not contain any organic solvents.
- the proportion of mineral fillers is between 5 and 10% by weight, based on the paint ready for processing.
- Such aqueous lacquers are preferably proposed whose mineral filler and / or pigment particles, or amorphous silica particles, are coated with a wax coating. This is accomplished by reacting a 95 -. 100 0 C can be heated wax emulsion incorporated in water in a held under strong stirring aqueous lacquer. In this way, at least some of the filler particles are encased in a wax coating.
- the wax used to produce the hot wax emulsion is preferably a montan wax, the melting point of which is preferably above 60 ° C.
- Papers usually absorbent papers, in the form of sections or as endless belts are used for the production of the metal registration papers.
- the ready-to-use aqueous lacquer is applied to the paper.
- the lacquer was mixed with the acid hardener before processing.
- the lacquer is applied using the methods known in the lacquer industry, preferably by rolling on or by knife application with a wire doctor.
- the amount to be applied can vary within wide limits.
- a paper web which weighs between 30 and 60 g / m 2 is coated in such a way that a film of 3-5 g of solid substance per m 2 is formed.
- the film is cured in the usual way.
- the surface temperature of the paint film is between 140 and 180 C when hot air is blasted with nozzle drying over a period of approx. 10 seconds. This time can be shortened even further if the surface temperature of the object is increased further, for example by infrared radiation.
- the paint film When using a black pigmented aqueous paint, the paint film is deep black and dull matt. The take-off bristles for computer playback are not noticeably attacked by the film.
- the surface of the lacquer film is coated in a known manner with a known vacuum metallization method with a thin layer of metal.
- This metal is preferably made of aluminum.
- the metal registration papers produced in this way can be used for the production of data carriers.
- a plasticizer-containing or resin-containing aqueous lacquer based on methanol-etherified melamine-formaldehyde resin with a binder solids content of 60% and a dispersed proportion of 1 part carbon black and 5% amorphous silica with a refractive index of 1.46 and an average particle size between 2 and 8 microns, based on 100 parts of the aqueous lacquer, is with the aid of a stirrer at 2000 rpm. touched.
- 50 parts of a 10% wax emulsion in water which is kept at a temperature of 98 ° C., are slowly run into the aqueous lacquer. Stirring is continued for a while after the inflow has ended.
- the wax had a melting point of 78-80 ° C, a cone pour point at 25 ° C according to Höppler of approx. 100 kg / cm 2 , a penetrometer number at 25 ° C / 100 g / 5 sec. At 3.5, a density at 20 ° C from 1.01'-1.02, a melt viscosity according to Ubbelohde at 100 C of approx. 27 centistokes and a cloud point in toluene of approx. 39 ° C.
- This black matt lacquer is rolled onto an endless paper web with the help of rollers.
- the paper used has a weight of approx. 45 g / m 2 . So much is rolled on that there is about 3 - 5 g / m 2 of dry paint film after the coating has hardened.
- the rolled-on coating is hardened with the aid of nozzle drying, the lacquer film being 10 sec. 160 - 180 ° C is exposed.
- the coating obtained is deep black and dull matt.
Landscapes
- Paper (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Die Erfindung bezieht sich auf Metallregistrierpapiere auf der Basis von auf Papier aufgebrachten, metallisierten Lackschichten und auf ein Verfahren zu ihrer Herstellung. Diese Papiere werden verwendet bei Registriervorgängen in der elektronischen Datenverarbeitung.The invention relates to metal registration papers on the basis of metallized lacquer layers applied to paper and to a method for their production. These papers are used in registration processes in electronic data processing.
Handelsübliche Papiere dieser Art sind beschichtet mit einem schwarz pigmentierten Nitrolack, der als Mattierungsmittel Zinkstearat enthält. Diese Überzüge werden hergestellt aus Nitrolacken, die organische Lösungsmittel enthalten. Als Mattierungsmittel enthalten sie Zinkstearat, da sich herausgestellt hat, daß in diesen Lacken mineralische Füllstoffe als Mattierungsmittel nicht eingesetzt werden können. Bei mit Daten versehenen Registrierpapieren ist die hauchdünne Metallschicht an ganz bestimmten Stellen entfernt und die Lackschicht ist freigelegt. Zur Auswertung der Papiere werden diese mit hoch empfindlichen Metallbürsten abgegriffen. Bei Anwesenheit mineralischer Füllstoffe in dem Lackfilm ist der Abrieb so groß, daß die Bürsten häufig ausgewechselt werden müssen. Da Zinkstearat keinen derartigen Abrieb erzeugt, konnte nur dieses Mattierungsmittel verwendet werden.Commercial papers of this type are coated with a black pigmented nitro lacquer, which contains zinc stearate as a matting agent. These coatings are made from nitro lacquers that contain organic solvents. They contain zinc stearate as a matting agent because it has been found that mineral fillers cannot be used as matting agents in these coatings. In the case of registration papers with data, the wafer-thin metal layer is removed at very specific points and the lacquer layer is exposed. To evaluate the papers, they are tapped with highly sensitive metal brushes. In the presence of mineral fillers in the paint film, the abrasion is so great that the brushes often have to be replaced. Since zinc stearate does not produce such abrasion, only this matting agent could be used.
Aus sicherheitstechnischen Gründen war es wünschenswert die in organischen Lösungsmitteln gelösten Nitrolacke zu ersetzen durch wäßrige bzw. wasserverdünnbare Lacksysteme.For safety reasons, it was desirable to replace the nitro lacquers dissolved in organic solvents with aqueous or water-dilutable lacquer systems.
Diese Aufgabe wurde gelöst durch ein Metallregistrierpapier auf der Basis von auf Papier aufgebrachten, metallisierten. Lackschichten, das dadurch gekennzeichnet ist, daß auf einem Papier eine Lackschicht festhaftend angeordnet ist, in der mineralische Füllstoffe und/oder Pigmente in Kombination mit Wachspartikeln eingelagert sind und die äußere Oberfläche der Lackschicht mit einer Metallschicht überzogen ist.This object was achieved by a metal registration paper based on metallized paper. Lacquer layers, which is characterized in that a lacquer layer is arranged firmly adhering to a paper, in which mineral fillers and / or pigments in combination with wax particles are embedded and the outer surface of the lacquer layer is coated with a metal layer.
Bevorzugt ist die Lackschicht auf einer endlosen Papierbahn angeordnet.The lacquer layer is preferably arranged on an endless paper web.
Bevorzugt sind die in der Lackschicht eingelagerten mineralischen Füllstoff- und/oder Pigmentpartikel von einer Wachshülle umhüllt.The mineral filler and / or pigment particles embedded in the lacquer layer are preferably covered by a wax coating.
In einer besonders bevorzugten Ausführungsform enthält die Lackschicht eingelagert amorphe Kieselsäure mit einem Brechungsindex von 1,45 - 1,47. Auf diese Weise erscheint die Lackschicht transparent und matt. Besonders vorteilhaft ist es, daß die amorphen Kieselsäure-Partikel mit einer Wachshülle umhüllt sind.In a particularly preferred embodiment, the lacquer layer contains embedded amorphous silica with a refractive index of 1.45-1.47. In this way, the paint layer appears transparent and matt. It is particularly advantageous that the amorphous silica particles are coated with a wax coating.
Die äußere Oberfläche der Lackschicht ist mit einer durch Vakuumverdampfung hergestellten Metallschicht überzogen, die in der Regel und im bevorzugten Fall eine Aluminiumschicht ist.The outer surface of the lacquer layer is coated with a metal layer produced by vacuum evaporation, which is usually and in the preferred case an aluminum layer.
Die Lackschicht ist tiefschwarz pigmentiert und stumpf matt. An den Stellen, an denen die Aluminiumschicht von der Lackschicht entfernt ist, erscheint die Aluminiumoberfläche weiß gegen einen tiefschwarzen Untergrund.The paint layer is deep black pigmented and dull matt. At the points where the aluminum layer is removed from the paint layer, the aluminum surface appears white against a deep black background.
Es war überraschend und nicht vorhersehbar, daß der Wachsgehalt bzw. die von Wachs umhüllten Füllstoff- und/oder Pigmentpartikel den Abrieb soweit vermindern, daß eine Abnutzung der Bürsten praktisch ausgeschlossen ist.It was surprising and unpredictable that the wax content or the filler and / or pigment particles encased in wax reduce the abrasion to such an extent that wear on the brushes is practically impossible.
Die erfindungsgemäßen Metallregistrierpapiere können dadurch hergestellt werden, daß man auf ein Papier oder eine Papierbahn einen wäßrigen Lack aufbringt, der mineralische Füllstoffe und/oder Pigmente enthält, wobei mindestens ein Teil der Füllstoff- und/oder Pigmentpartikel mit einer Wachshülle umhüllt ist, und daß man nach dem Härten des Lackfilmes die Oberfläche des Filmes auf bekannte Weise durch Vakuumverdampfen mit einer Metallschicht überzieht. In bevorzugter Weise wird als Metallschicht eine Aluminiumschicht im Vakuum aufgedampft.The metal registration papers according to the invention can be produced by applying an aqueous varnish to a paper or paper web which contains mineral fillers and / or pigments, at least some of the filler and / or pigment particles being coated with a wax coating, and by after the coating film has hardened, the surface of the film is coated in a known manner by vacuum evaporation with a metal layer. An aluminum layer is preferably evaporated in vacuo as the metal layer.
Der für die erfindungsgemäße Herstellung verwendete wäßrige Lack kann ein Dispersionslack sein, wie sie handelsüblich sind. Bevorzugte Dispersionslacke sind auf Acrylatharzbasis.The aqueous lacquer used for the production according to the invention can be a dispersion lacquer, as are commercially available. Preferred dispersion paints are based on acrylic resin.
Bevorzugt eingesetzt werden aber säurehärtende wäßrige Lacke. Als Filmbildner enthalten sie mit Methanol veretherte Melamin-Formaldehyd-Kondensationsprodukte, die durch wasserlösliche ungesättigte oder gesättigte Polyesterharze weich gemacht sind.However, acid-curing aqueous paints are preferably used. As film formers, they contain melamine-formaldehyde condensation products etherified with methanol, which are softened by water-soluble unsaturated or saturated polyester resins.
Auch solche säurehärtenden wäßrigen Lacke sind handelsüblich. Sie werden durch den Zusatz von Säure kurz vor der Verarbeitung gehärtet.Such acid-curing aqueous paints are also commercially available. They are hardened shortly before processing by the addition of acid.
Der Säurezusatz bedingt aber auch, daß das in den Nitrolacken als Mattierungsmittel verwendete Zinkstearat nicht in den wäßrigen Lacken eingesetzt werden kann, weil Zinkstearat durch Säuren zersetzt wird. Bei der Auswahl der mineralischen Füllstoffe für säurehärtende Lacke können nur solche verwendet werden, die durch Säuren nicht angegriffen werden. Deshalb ist das bevorzugte Mattierungsmittel in den wäßrigen Lacken amorphe Kieselsäure. Sie hat außerdem den weiteren Vorteil, daß sie einen Brechungsindex von 1,45 - 1,47 besitzt, der dem Brechungsindex des Filmbildners entspricht, so daß der Überzug transparent aussieht und je nach Menge des zugesetzten Mattierungsmittels matt bis stumpf matt ist.However, the addition of acid also means that the zinc stearate used as a matting agent in the nitro lacquers cannot be used in the aqueous lacquers because zinc stearate is decomposed by acids. When selecting the mineral fillers for acid-curing lacquers, only those that are not attacked by acids can be used. Therefore, the preferred matting agent in the aqueous paints is amorphous silica. It also has the further advantage that it has a refractive index of 1.45-1.47, which corresponds to the refractive index of the film former, so that the coating looks transparent and is matt to dull matt, depending on the amount of matting agent added.
Die wäßrigen Lacke enthalten verarbeitungsfertig einen Festkörper von 50 - 70 Gew-%. Sie enthalten keine organischen Lösungsmittel. Der Anteil an mineralischen Füllstoffen beträgt zwischen 5 und 10 Gew-%, auf den verarbeitungsfertigen Lack bezogen.The aqueous lacquers contain a solid of 50-70% by weight ready for processing. They do not contain any organic solvents. The proportion of mineral fillers is between 5 and 10% by weight, based on the paint ready for processing.
Bevorzugt werden solche wäßrigen Lacke vorgeschlagen deren mineralische Füllstoff- und/oder Pigmentpartikel, bzw. amorphe Kieselsäurepartikel, mit einer Wachshülle umhüllt sind. Das wird dadurch erreicht., daß man eine auf 95 - 1000 C erhitzte Wachsemulsion in Wasser in einen unter starkem Rühren gehaltenen wäßrigen Lack einfließen läßt. Mindestens ein Teil der Füllstoffpartikel wird auf diese Weise von einer Wachshülle umhüllt. Das zur Herstellung der heißen Wachsemulsion eingesetzte Wachs ist bevorzugt ein Montanwachs, dessen Schmelzpunkt vorzugsweise über 600 C beträgt.Such aqueous lacquers are preferably proposed whose mineral filler and / or pigment particles, or amorphous silica particles, are coated with a wax coating. This is accomplished by reacting a 95 -. 100 0 C can be heated wax emulsion incorporated in water in a held under strong stirring aqueous lacquer. In this way, at least some of the filler particles are encased in a wax coating. The wax used to produce the hot wax emulsion is preferably a montan wax, the melting point of which is preferably above 60 ° C.
Für die Herstellung der Metallregistrierpapiere werden Papiere, in der Regel saugfähige Papiere, in Form von Abschnitten oder als Endlosbänder verwendet. Auf das Papier wird der verarbeitungsfertige wäßrige Lack aufgebracht. Bei säurehärtenden Lacken wurde der Lack vor der Verarbeitung mit dem Säurehärter versetzt und vermischt. Das Aufbringen des Lackes erfolgt mit den in der Lackindustrie bekannten Methoden, vorzugsweise durch Aufwalzen oder durch Aufrakeln mit einem Drahtrakel. Die aufzubringende Menge kann in weiten Grenzen schwanken. In einer beispielhaft erwähnten Verfahrensweise wird eine Papierbahn, die zwischen 30 und 60 g/m2 wiegt, derart beschichtet, daß ein Film von 3 - 5 g Festsubstanz je m2 entsteht. Der Film wird auf übliche Weise gehärtet. In der Regel werden höhere Temperaturen -verwendet. So liegt z.B. die Oberflächentemperatur des Lackfilmes zwischen 140 und 180 C bei einer Heißluftbestrahlung mittels Düsentrocknung über einen Zeitraum von ca. 10 Sekunden. Diese Zeit kann noch weiter verkürzt werden, wenn die Oberflächentemperatur des Objektes weiter erhöht wird, z.B. durch Infrarotbestrahlen.Papers, usually absorbent papers, in the form of sections or as endless belts are used for the production of the metal registration papers. The ready-to-use aqueous lacquer is applied to the paper. In the case of acid-curing lacquers, the lacquer was mixed with the acid hardener before processing. The lacquer is applied using the methods known in the lacquer industry, preferably by rolling on or by knife application with a wire doctor. The amount to be applied can vary within wide limits. In a procedure which is mentioned by way of example, a paper web which weighs between 30 and 60 g / m 2 is coated in such a way that a film of 3-5 g of solid substance per m 2 is formed. The film is cured in the usual way. As a rule, higher temperatures are used. For example, the surface temperature of the paint film is between 140 and 180 C when hot air is blasted with nozzle drying over a period of approx. 10 seconds. This time can be shortened even further if the surface temperature of the object is increased further, for example by infrared radiation.
Bei Verwendung eines schwarz pigmentierten wäßrigen Lackes ist der Lackfilm tiefschwarz und stumpf matt. Die Abnahmeborsten für die Computer-Wiedergabe werden von dem Film nicht merklich angegriffen.When using a black pigmented aqueous paint, the paint film is deep black and dull matt. The take-off bristles for computer playback are not noticeably attacked by the film.
Nach Durchhärtung des Lackfilmes wird die Oberfläche des Lackfilmes in bekannter Weise mit einem der bekannten Vakuummetallisierverfahren mit einer dünnen Schicht aus Metall überzogen. In bevorzugter Weise ist dieses Metall aus Aluminium.After the lacquer film has hardened, the surface of the lacquer film is coated in a known manner with a known vacuum metallization method with a thin layer of metal. This metal is preferably made of aluminum.
Die so hergestellten Metallregistrierpapiere können zur Herstellung von Datenträgern verwendet werden.The metal registration papers produced in this way can be used for the production of data carriers.
Ein weichmacherhaltiger oder weichharzhaltiger wäßriger Lack auf der Basis von mit methanolverethertem Melamin-Formaldehyd-Harz mit einem Bindemittelfestkörper von 60 % und einem eindispergiertem Anteil von 1 Teil Ruß und 5 % amorpher Kieselsäure mit einem Brechungsindex von 1,46 und einer mittleren Teilchengröße zwischen 2 und 8 µm, bezogen auf 100 Teile des wäßrigen Lackes, wird mit Hilfe eines Rührers mit 2000 U/min. gerührt. In den entstandenen Rührkegel werden 50 Teile einer 10 %-igen Wachsemulsion in Wasser, die auf einer Temperatur von 98° C gehalten wird, langsam in den wäßrigen Lack einlaufen gelassen. Das Rühren wird noch eine Zeitlang nach Beendigung des Einfließens fortgesetzt.A plasticizer-containing or resin-containing aqueous lacquer based on methanol-etherified melamine-formaldehyde resin with a binder solids content of 60% and a dispersed proportion of 1 part carbon black and 5% amorphous silica with a refractive index of 1.46 and an average particle size between 2 and 8 microns, based on 100 parts of the aqueous lacquer, is with the aid of a stirrer at 2000 rpm. touched. In the resulting stirring cone, 50 parts of a 10% wax emulsion in water, which is kept at a temperature of 98 ° C., are slowly run into the aqueous lacquer. Stirring is continued for a while after the inflow has ended.
Zur Herstellung der Wachsemulsion wurde ein Esterwachs auf Basis eines gebleichten und modifizierten Montanwachses verwendet. Das Wachs hatte einen Schmelzpunkt von 78 - 80° C, einen Kegelfließpunkt bei 25° C nach Höppler von ca. 100 kg/cm2, eine Penetrometerzahl bei 25° C/100 g/ 5 sec. bei 3,5, eine Dichte bei 20° C von 1,01'- 1,02, eine Schmelzviskosität nach Ubbelohde bei 100 C von ca. 27 Centistokes und einen Trübungspunkt in Toluol von ca. 39° C. Zur Herstellung der Wachsemulsion wurde heißes Wasser vorgelegt, in das die Wachsschuppen solange eingerührt wurden, bis sie sich zu einer Emulsion gelöst hatten. Anschließend wurde die Mischung kurz aufgekocht und auf 10 Gew-% Wachs eingestellt. Bis zur Verarbeitung wurde die Temperatur auf 98° C aufrechterhalten. Der so hergestellte und das Wachs enthaltende wäßrige Lack ist verarbeitungsfertig. Kurz vor der Verarbeitung wird noch eine Härterlösung, die 10 Teile p-Toluolsulfonsäure enthält, zugemischt.An ester wax based on a bleached and modified montan wax was used to prepare the wax emulsion. The wax had a melting point of 78-80 ° C, a cone pour point at 25 ° C according to Höppler of approx. 100 kg / cm 2 , a penetrometer number at 25 ° C / 100 g / 5 sec. At 3.5, a density at 20 ° C from 1.01'-1.02, a melt viscosity according to Ubbelohde at 100 C of approx. 27 centistokes and a cloud point in toluene of approx. 39 ° C. To prepare the wax emulsion, hot water was placed, into which the wax flakes were stirred until they had dissolved into an emulsion. The mixture was then boiled up briefly and adjusted to 10% by weight wax. The temperature was maintained at 98 ° C until processing. The aqueous lacquer thus produced and containing the wax is ready for processing. Shortly before processing, a hardener solution containing 10 parts of p-toluenesulfonic acid is added.
Dieser schwarze Mattlack wird auf eine endlose Papierbahn mit Hilfe von Walzen aufgewalzt. Das verwendete Papier hat ein Gewicht von ca. 45 g/m2. Es wird soviel aufgewalzt, daß sich nach dem Härten des Lacküberzuges ca. 3 - 5 g/m2 trockener Lackfilm befinden. Die Härtung des aufgewalzten Überzuges erfolgt mit Hilfe von Düsentrocknung, wobei der Lackfilm 10 Sec. 160 - 180° C ausgesetzt wird. Der erhaltene Überzug ist tiefschwarz und stumpf matt.This black matt lacquer is rolled onto an endless paper web with the help of rollers. The paper used has a weight of approx. 45 g / m 2 . So much is rolled on that there is about 3 - 5 g / m 2 of dry paint film after the coating has hardened. The rolled-on coating is hardened with the aid of nozzle drying, the lacquer film being 10 sec. 160 - 180 ° C is exposed. The coating obtained is deep black and dull matt.
Er wird anschließend in bekannter Weise mit Hilfe eines Vakuummetallisierungsverfahrens mit einem Aluminium bedampft. Danach ist das Metallregistrierpapier fertig und verwendungsfähig.It is then vapor-coated with aluminum in a known manner using a vacuum metallization process. The metal registration paper is then ready and ready for use.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT82102490T ATE14095T1 (en) | 1981-03-31 | 1982-03-25 | METALLIZED REGISTRATION PAPER AND METHOD OF PRODUCTION. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3112658 | 1981-03-31 | ||
| DE3112658A DE3112658C1 (en) | 1981-03-31 | 1981-03-31 | Metal registration papers and processes for their manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0062803A1 true EP0062803A1 (en) | 1982-10-20 |
| EP0062803B1 EP0062803B1 (en) | 1985-07-03 |
Family
ID=6128767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82102490A Expired EP0062803B1 (en) | 1981-03-31 | 1982-03-25 | Metallized recording paper and process for its manufacture |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4469749A (en) |
| EP (1) | EP0062803B1 (en) |
| AT (1) | ATE14095T1 (en) |
| DE (2) | DE3112658C1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985001019A1 (en) * | 1983-08-19 | 1985-03-14 | Robert Bosch Gmbh | Recording medium for recording apparatus |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4029491A1 (en) * | 1990-09-18 | 1992-03-19 | Feldmuehle Ag | Paper with satinised overcoat and top coat on one side - contg. synthetic resin binder, natural binder and opt. pigment, useful for label |
| KR100264622B1 (en) * | 1992-11-30 | 2000-09-01 | 에모토 간지 | Surface-treated metal sheet which excels in workability, electrical conductivity and corrosion resistance, and method of producing the same. |
| US6387500B1 (en) | 1997-11-06 | 2002-05-14 | Cabot Corporation | Multi-layered coatings and coated paper and paperboards |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2009436A (en) * | 1932-05-24 | 1935-07-30 | Du Pont | Noncaking pigment |
| DE844829C (en) * | 1950-10-23 | 1952-07-24 | Bosch Gmbh Robert | Recording measuring instrument with tape-shaped recording medium |
| US2861515A (en) * | 1955-02-02 | 1958-11-25 | Timefax Corp | Method of making duplicating master |
| DE2203861A1 (en) * | 1971-01-30 | 1972-08-17 | ||
| GB1325033A (en) * | 1971-11-26 | 1973-08-01 | Mason Ltd Nig | Electrosensitive recording materials |
| DE2748161A1 (en) * | 1977-10-27 | 1979-09-27 | Bosch Gmbh Robert | RECORDING MEDIA FOR REGISTRATION DEVICES |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2554017A (en) * | 1946-11-14 | 1951-05-22 | Timefax Corp | Electroresponsive recording blank |
| US3786518A (en) * | 1972-09-22 | 1974-01-15 | Nig Mason Ltd | Electrosensitive recording materials |
-
1981
- 1981-03-31 DE DE3112658A patent/DE3112658C1/en not_active Expired
-
1982
- 1982-03-24 US US06/432,946 patent/US4469749A/en not_active Expired - Lifetime
- 1982-03-25 DE DE8282102490T patent/DE3264513D1/en not_active Expired
- 1982-03-25 EP EP82102490A patent/EP0062803B1/en not_active Expired
- 1982-03-25 AT AT82102490T patent/ATE14095T1/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2009436A (en) * | 1932-05-24 | 1935-07-30 | Du Pont | Noncaking pigment |
| DE844829C (en) * | 1950-10-23 | 1952-07-24 | Bosch Gmbh Robert | Recording measuring instrument with tape-shaped recording medium |
| US2861515A (en) * | 1955-02-02 | 1958-11-25 | Timefax Corp | Method of making duplicating master |
| DE2203861A1 (en) * | 1971-01-30 | 1972-08-17 | ||
| GB1325033A (en) * | 1971-11-26 | 1973-08-01 | Mason Ltd Nig | Electrosensitive recording materials |
| DE2748161A1 (en) * | 1977-10-27 | 1979-09-27 | Bosch Gmbh Robert | RECORDING MEDIA FOR REGISTRATION DEVICES |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1985001019A1 (en) * | 1983-08-19 | 1985-03-14 | Robert Bosch Gmbh | Recording medium for recording apparatus |
| US4606937A (en) * | 1983-08-19 | 1986-08-19 | Robert Bosch Gmbh | Electroerosion recording medium fabrication method |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE14095T1 (en) | 1985-07-15 |
| EP0062803B1 (en) | 1985-07-03 |
| DE3264513D1 (en) | 1985-08-08 |
| DE3112658C1 (en) | 1987-03-26 |
| US4469749A (en) | 1984-09-04 |
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