EP0133941A1 - Magnetically active paint for silk screen process and its use - Google Patents
Magnetically active paint for silk screen process and its use Download PDFInfo
- Publication number
- EP0133941A1 EP0133941A1 EP84108472A EP84108472A EP0133941A1 EP 0133941 A1 EP0133941 A1 EP 0133941A1 EP 84108472 A EP84108472 A EP 84108472A EP 84108472 A EP84108472 A EP 84108472A EP 0133941 A1 EP0133941 A1 EP 0133941A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- binder
- magnetically active
- pigment
- paint
- paint according
- 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
- 239000003973 paint Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000011230 binding agent Substances 0.000 claims abstract description 25
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 239000000049 pigment Substances 0.000 claims abstract description 13
- 238000007650 screen-printing Methods 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 5
- 230000005291 magnetic effect Effects 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000004925 Acrylic resin Substances 0.000 claims description 3
- 229920000178 Acrylic resin Polymers 0.000 claims description 3
- 229920000180 alkyd Polymers 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000011877 solvent mixture Substances 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 235000015096 spirit Nutrition 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract 2
- 239000004744 fabric Substances 0.000 description 8
- 229920000728 polyester Polymers 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000002313 adhesive film Substances 0.000 description 3
- 239000011111 cardboard Substances 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 241001139947 Mida Species 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/442—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a metal or alloy, e.g. Fe
Definitions
- the invention relates to a magnetically effective paint for application to a base, a method for producing a magnetically effective surface on a base in a selected area, a magnetically active coating on a base and uses of the magnetically active color.
- the panels are made of lacquered iron sheet so that the magnetic components adhere firmly to them.
- the present invention is based on the object of specifying a means for marking documents of all kinds using magnetic effects.
- the paint contains a binder, a magnetic pigment in the form of finely divided iron produced by reduction and, if appropriate, a filler.
- the composition of the binder is chosen in such a way that it is most appropriate for the particular application and base.
- the paint can contain a physically drying binder based on acrylic resin in a solvent mixture of aromatics, ketones and; esters or an oxidatively drying binder ⁇ based on alkyd resin in a solvent such as white spirit, especially when applied by the screen printing process.
- a filler can also be added to the paint, which can also be or contain a dye.
- the proportion of pigment in the color can vary within wide limits.
- the amount of iron in the applied layer only has to be large enough for the adhesive forces required in the respective application to occur or for a sufficiently strong signal to be generated during the electronic scanning of such a marking.
- the amount of pigment must not be so large that the color no longer holds together or no longer adheres sufficiently to the base.
- a weight ratio of pigment / binder in the range from 0.2 to 2.5 has proven to be favorable; a pigment / binder weight ratio in the range from 0.8 to 2.4 is particularly suitable for application by the screen printing process.
- the coating applied by screen printing expediently has a layer thickness in the range from 0.03 to 0.2 mm.
- the application of the magnetically effective ink to a base for its magnetic marking in a selected area can be carried out particularly advantageously by the screen printing method.
- the color can be applied to almost any surface in this way; Examples include textile fabrics, paper, cardboard, wood, glass and plastics such as polystyrene or acrylic glasses.
- the magnetically effective color can also be selected in any other way, e.g. can be applied by brushing, rolling or spraying.
- the magnetically effective paint can be used to produce fields for interchangeable markings made of magnetic material.
- the marks can consist of numbers or letters made of magnetic plastic, which indicate prices, times or the like.
- the magnetically active ink can also be used to produce magnetically active markings.
- the markings can form tracks or locations of a game with magnetic game pieces or electronically scannable codes or control lines.
- the magnetically effective ink obtained as above is applied in a screen printing system ("Midas" flatbed machine) using a screen frame with a polyester fabric of 34 threads / cm onto a base made of commercially available 2.7 mm thick cardboard coated on both sides with white .
- the layer thickness of the printed surfaces was 0.05 mm and was large enough to hold magnetic bodies such as magnetic adhesive films securely even in the vertical position.
- the proportion of pigment in the magnetically effective color can vary within relatively wide limits without impairing the effect. Printing results with 40-125 g of iron in 50 g of binder were practically equally good, the magnetic adhesive strength increasing with increasing iron content, but still being noticeable even with 30 g of iron per 50 g of binder.
- the layer thickness of the magnetically effective coating applied to the base depends on the fabric of the screen printing frame used and on the number of applications. A layer thickness of just 0.03 mm already results in a noticeable adhesive effect when applying magnetic adhesive films; layer thicknesses of up to 0.2 mm are generally sufficient to keep magnetic bodies vibration-proof in the usual framework.
- the embodiment shown in the figure was obtained with a color of 50 g of binder and 120 g of iron, which was printed on paper (110 g / m 2 ) through a polyester fabric (100 threads / cm 2 ).
- Magnetic material such as magnetic adhesive film
- Certain patterns can also be created, e.g. for game plans and the like, on which magnetic game pieces, figures and the like adhere.
- the magnetically effective paint can also be used in conjunction with electronic probes for identification or control purposes.
- the magnetically effective paint can be applied to all common materials such as paper, cardboard, textile fabrics, wood, glass, plastics such as polystyrene, acrylic glasses for various purposes.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Paints Or Removers (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Road Signs Or Road Markings (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Die Erfindung betrifft eine magnetisch wirksame Farbe zum Auftrag auf eine Unterlage, ein Verfahren zur Herstellung einer in einem ausgewählten Bereich magnetisch wirksamen Fläche auf einer Unterlage, eine magnetisch wirksame Beschichtung auf einer Unterlage und Verwendungen der magnetisch wirksamen Farbe.The invention relates to a magnetically effective paint for application to a base, a method for producing a magnetically effective surface on a base in a selected area, a magnetically active coating on a base and uses of the magnetically active color.
Es ist z.B. in der Büroorganisation bekannt, bestimmte Termine und andere wichtige Daten mit Hilfe von Magneten auf Informationstafeln deutlich sichtbar anzuzeigen. Auch bei Verkehrsübungstafeln können zu Unterrichtszwecken Verkehrsteilnehmer durch magnetische Bausteine dargestellt werden. In diesen und entsprechenden anderen Fällen bestehen die Tafeln aus lackiertem Eisenblech, so daß die magnetischen Bausteine fest daran haften.It is e.g. known in the office organization to clearly display certain dates and other important dates with the help of magnets on information boards. Road users can also use magnetic building blocks to show road users for teaching purposes. In these and corresponding other cases, the panels are made of lacquered iron sheet so that the magnetic components adhere firmly to them.
Es gibt jedoch viele Anwendungsfälle, in denen solche Anbringungen auf magnetischer Grundlage nicht ohne weiteres realisierbar sind, weil die Unterlage üblicherweise nicht aus Eisenblech hergestellt wird, z.B. bei Preisauszeichnungsschildern.However, there are many applications in which such magnetic-based attachments cannot easily be implemented because the base is usually not is made of sheet iron, for example for price labeling signs.
Der vorliegenden Erfindung 1iegt die Aufgabe zugrunde, ein Mittel für die Markierung von Unterlagen aller Art unter Anwendung magnetischer Wirkungen anzugeben.The present invention is based on the object of specifying a means for marking documents of all kinds using magnetic effects.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Farbe ein Bindemittel, ein magnetisches Pigment in Form von fein verteiltem, durch Reduktion hergestelltem Eisen und gegebenenfalls einen Füllstoff enthält.According to the invention, this object is achieved in that the paint contains a binder, a magnetic pigment in the form of finely divided iron produced by reduction and, if appropriate, a filler.
Das Bindemittel wird dabei in seiner Zusammensetzung so gewählt, wie es für die jeweilige Auftragung und Unterlage am zweckmäßigsten ist. Dabei kann die Farbe insbesondere bei der Auftragung nach dem Siebdruckverfahren ein physikalisch trocknendes Bindemittel auf der Grundlage von Acrylharz in einem Lösungsmittelgemisch aus Aromaten, Ketonen und;Estern oder auch ein oxidativ trocknendes Bindemittel·auf der Grudlage von Alkydharz in einem Lösungsmittel wie Testbenzin enthalten. Falls erforderlich, kann der Farbe auch ein Füllstoff zugesetzt werden, der auch einen Farbstoff darstellen oder enthalten kann.The composition of the binder is chosen in such a way that it is most appropriate for the particular application and base. The paint can contain a physically drying binder based on acrylic resin in a solvent mixture of aromatics, ketones and; esters or an oxidatively drying binder · based on alkyd resin in a solvent such as white spirit, especially when applied by the screen printing process. If necessary, a filler can also be added to the paint, which can also be or contain a dye.
Der Anteil des Pigments an der Farbe kann in weiten Grenzen variieren. Die Menge an Eisen in der aufgetragenen Schicht muß lediglich groß genug sein, damit die im jeweiligen Anwendungsfall erforderlichen Haftkräfte auftreten bzw. bei der elektronischen Abtastung einer solchen Markierung ein hinreichend starkes Signal erzeugt wird. Die Menge des Pigments darf nicht so groß sein, daß die Farbe nicht mehr zusammenhält bzw. nicht mehr hinreichend fest an der Unterlage haftet. Im allgemeinen hat sich dabei, je nach Anwendungszweck, ein Gewichtsverhältnis Pigment/Bindemittel im Bereich von 0,2 bis 2,5 als günstig erwiesen; für die Auftragung nach dem Siebdruckverfahren ist ein Gewichtsverhältnis Pigment/Bindemittel im Bereich von 0,8 bis 2,4 besonders geeignet.The proportion of pigment in the color can vary within wide limits. The amount of iron in the applied layer only has to be large enough for the adhesive forces required in the respective application to occur or for a sufficiently strong signal to be generated during the electronic scanning of such a marking. The amount of pigment must not be so large that the color no longer holds together or no longer adheres sufficiently to the base. In general, depending on the application, a weight ratio of pigment / binder in the range from 0.2 to 2.5 has proven to be favorable; a pigment / binder weight ratio in the range from 0.8 to 2.4 is particularly suitable for application by the screen printing process.
Die durch Siebdruck aufgetragene Beschichtung hat zweckmäßigerweise eine Schichtdicke im Bereich von 0,03 bis 0,2 mm. Die Auftragung der magnetisch wirksamen Farbe auf eine Unterlage zu deren magnetischer Markierung in einem ausgewählten Bereich läßt sich besonders vorteilhaft nach dem Siebdruckverfahren durchführen. Die Farbe läßt sich auf diese Weise auf fast jede Unterlage aufbringen; als Beispiel seien textile Stoffe, Papier, Pappe, Holz, Glas und Kunststoffe wie polystyrol oder Acrylgläser genannt.The coating applied by screen printing expediently has a layer thickness in the range from 0.03 to 0.2 mm. The application of the magnetically effective ink to a base for its magnetic marking in a selected area can be carried out particularly advantageously by the screen printing method. The color can be applied to almost any surface in this way; Examples include textile fabrics, paper, cardboard, wood, glass and plastics such as polystyrene or acrylic glasses.
Die magnetisch wirksame Farbe kann aber bei Wahl des geeigneten Bindemittels auch in jeder anderen Weise z.B. durch Streichen, Rollen oder Spritzen aufgetragen werden.The magnetically effective color can also be selected in any other way, e.g. can be applied by brushing, rolling or spraying.
Nach der Erfindung kann die magnetisch wirksame Farbe zur Herstellung von Feldern für auswechselbare Kennzeichen aus magnetischem Material Verwendung finden. Beispielsweise können die Kennzeichen aus Ziffern oder Buchstaben aus magnetischem Kunststoff bestehen, die Preise, Uhrzeiten oder dergleichen anzeigen.According to the invention, the magnetically effective paint can be used to produce fields for interchangeable markings made of magnetic material. For example, the marks can consist of numbers or letters made of magnetic plastic, which indicate prices, times or the like.
Nach der Erfindung kann die magnetisch wirksame Farbe auch zur Herstellung von magnetisch wirksamen Markierungen Verwendung finden. Beispielsweise können die Markierungen Bahnen oder Orte eines Spieles mit magnetischen Spielsteinen oder elektronisch abtastbare Codes oder Steuerungslinien bilden.According to the invention, the magnetically active ink can also be used to produce magnetically active markings. For example, the markings can form tracks or locations of a game with magnetic game pieces or electronically scannable codes or control lines.
Nachfolgend wird unter Bezugnahme auf die Abbildung ein Ausführungsbeispiel beschrieben.An exemplary embodiment is described below with reference to the figure.
Herstellung der magnetisch wirksamen FarbeProduction of the magnetically effective color
In einem Gefäß werden 50 g eines physikalisch trocknenden Bindemittels auf der Basis von Acrylharz in einem Lösungsmittelgemisch (z.B. des Typs HGB von der Firma Wiederholdt) mit 60 g fein verteiltem, durch Reduktion hergestelltem Eisen (Riedel de Haen, Prod. Nr. 12312) mit einem Rührer, der durch einen Bohrmaschinenmotor angetrieben wird, bis zur Homogenität gerührt.50 g of a physically drying binder based on acrylic resin in a solvent mixture (for example of the HGB type from the company) are placed in a vessel Repeated) with 60 g of finely divided iron produced by reduction (Riedel de Haen, Prod. No. 12312) with a stirrer, which is driven by a drill motor, stirred until homogeneous.
Die wie vorstehend erhaltene magnetisch wirksame Farbe wird in einer Siebdruckanlage (Flachbett-Automat "Midas") unter Verwendung eines Siebrahmens mit einem Polyester-Gewebe von 34 Fäden/cm auf eine Unterlage aus handelsüblicher, 2,7 mm starker, beidseitig weiß beschichteter Pappe aufgetragen. Die Schichtdicke der bedruckten Flächen betrug 0,05 mm und war groß genug, um auch bei senkrechter Stellung magnetische Körper wie Magnethaftfolien sicher daran festzuhalten.The magnetically effective ink obtained as above is applied in a screen printing system ("Midas" flatbed machine) using a screen frame with a polyester fabric of 34 threads / cm onto a base made of commercially available 2.7 mm thick cardboard coated on both sides with white . The layer thickness of the printed surfaces was 0.05 mm and was large enough to hold magnetic bodies such as magnetic adhesive films securely even in the vertical position.
Das gleiche Ergebnis wurde trotz abnehmender Schichtdicke des Farbauftrags auch bei Verwendung von Siebrahmen mit Polyester-Gewebe bis zu 120 Fäden/cm2 erhalten. Anstelle des Polyester-Gewebes kann auch ein entsprechendes Gewebe aus rostfreiem Stahl wie V2A verwendet werden.The same result was obtained despite the decreasing layer thickness of the paint application even when using screen frames with polyester fabric up to 120 threads / cm 2 . Instead of the polyester fabric, a corresponding stainless steel fabric such as V2A can also be used.
Der Pigmentanteil in der magnetisch wirksamen Farbe kann ohne Beeinträchtigung der-Wirkung in relativ weiten Grenzen variiert wenden. So wurden praktisch gleich gute Druckergebnisse mit 40-125 g Eisen in 50 g Bindemittel erhalten, wobei die magnetische Haftkraft mit zunehmenden Eisengehalt zunimmt, aber auch bei 30 g Eisen auf 50 g Bindemittel noch merklich ist. Die Schichtdicke der auf die Unterlage aufgetragenen magnetisch wirksamen Beschichtung ist von dem verwendeten Gewebe des Siebdruckrahmens und von der Zahl der Auftragungen abhängig. Eine Schichtdicke von nur 0,03 mm ergibt bereits eine merkliche Haftwirkung bei der Anbringung von Magnethaftfolien; im allgemeinen reichen Schichtdicken bis zu 0,2 mm aus, um magnetische Körper im üblichen Rahmen erschütterungssicher zu halten.The proportion of pigment in the magnetically effective color can vary within relatively wide limits without impairing the effect. Printing results with 40-125 g of iron in 50 g of binder were practically equally good, the magnetic adhesive strength increasing with increasing iron content, but still being noticeable even with 30 g of iron per 50 g of binder. The layer thickness of the magnetically effective coating applied to the base depends on the fabric of the screen printing frame used and on the number of applications. A layer thickness of just 0.03 mm already results in a noticeable adhesive effect when applying magnetic adhesive films; layer thicknesses of up to 0.2 mm are generally sufficient to keep magnetic bodies vibration-proof in the usual framework.
Das in der Abbildung dargestellte Ausführungsbeispiel wurde mit einer Farbe aus 50 g Bindemittel und 120 g Eisen erhalten, die durch ein Polyestergewebe (100 Fäden/cm2) auf Papier (110 g/m2) aufgedruckt wurde.The embodiment shown in the figure was obtained with a color of 50 g of binder and 120 g of iron, which was printed on paper (110 g / m 2 ) through a polyester fabric (100 threads / cm 2 ).
Die gleichen Ergebnisse lassen sich mit einem oxidativ trocknenden Bindemittel auf der Basis von in Testbenzin gelöstem Alkydharz (z.B. des Typs A der Fa. Wiederholdt) erzielen.The same results can be achieved with an oxidatively drying binder based on alkyd resin dissolved in white spirit (e.g. type A from the company Rückholdt).
An den Flächen, auf die die magnetisch wirksame Farbe aufgetragen ist, lassen sich Buchstaben und andere Symbole oder Zahlen aus magnetischem Material wie Magnethaftfolie auswechselbar anheften. Es lassen sich auch bestimmte Muster erzeugen, z.B. für Spielpläne und dergleichen, auf denen magnetische Spielsteine, Figuren und dergleichen haften. Die magnetisch wirksame Farbe kann auch zu Identifizierung- oder Steuerungszwecken in Zusammenwirkung mit elektronischen Tastköpfen Verwendung finden. Die magnetisch wirksame Farbe kann zu den verschiedenen Anwendungszwecken auf alle gängigen Materialien wie Papier, Pappe, textile Stoffe, Holz, Glas, Kunststoffe wie Polystyrol, Acrylgläser aufgetragen werden.Letters and other symbols or numbers made of magnetic material such as magnetic adhesive film can be interchangeably attached to the surfaces on which the magnetically effective paint is applied. Certain patterns can also be created, e.g. for game plans and the like, on which magnetic game pieces, figures and the like adhere. The magnetically effective paint can also be used in conjunction with electronic probes for identification or control purposes. The magnetically effective paint can be applied to all common materials such as paper, cardboard, textile fabrics, wood, glass, plastics such as polystyrene, acrylic glasses for various purposes.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT84108472T ATE47246T1 (en) | 1983-07-19 | 1984-07-18 | MAGNETIZABLE SCREEN PRINTING INK AND THEIR USE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3325960A DE3325960C2 (en) | 1983-07-19 | 1983-07-19 | Magnetically effective paint and its use |
| DE3325960 | 1983-07-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0133941A1 true EP0133941A1 (en) | 1985-03-13 |
| EP0133941B1 EP0133941B1 (en) | 1989-10-11 |
Family
ID=6204329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84108472A Expired EP0133941B1 (en) | 1983-07-19 | 1984-07-18 | Magnetically active paint for silk screen process and its use |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0133941B1 (en) |
| AT (1) | ATE47246T1 (en) |
| DE (2) | DE3325960C2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2860798A1 (en) * | 2003-10-10 | 2005-04-15 | Nicolas Triboulot | New primer or coating composition containing synthetic resin binder, diluent and iron filings with a specific particle size, used for making non-metallic surfaces sensitive to magnetism, e.g. for fixing magnetic objects to walls |
| WO2017168443A1 (en) * | 2016-03-30 | 2017-10-05 | Saint-Gobain Glass France | Magnetic glass member |
| US11643559B2 (en) | 2017-07-25 | 2023-05-09 | Magnomer, Inc. | Methods and compositions for magnetizable plastics |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3732116A1 (en) * | 1986-10-01 | 1988-04-21 | Trinitas Ag | Magnetisable screen printing ink and process for preparing a sheet magnet |
| US5607609A (en) † | 1993-10-25 | 1997-03-04 | Fujitsu Ltd. | Process and apparatus for soldering electronic components to printed circuit board, and assembly of electronic components and printed circuit board obtained by way of soldering |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2806280A1 (en) * | 1978-02-15 | 1979-08-23 | Senckel Hans Joachim | lacquer contg. iron particles - used to effect adhesion between articles by magnetic attraction |
| US4262037A (en) * | 1976-04-05 | 1981-04-14 | Hitachi, Ltd. | Method of producing ferromagnetic metal powder |
| NL8202336A (en) * | 1982-06-09 | 1984-01-02 | Hubertus Josephus Hypolitus Ca | Ferromagnetic layer for magnetic signs prodn. - by incorporating ferromagnetic powder into colour paste and applying to substrate e.g. by screen printing |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB820932A (en) * | 1954-12-20 | 1959-09-30 | Ibm | Improvements in and relating to marking compositions |
| DE1144743B (en) * | 1958-12-30 | 1963-03-07 | Ibm | Printing ink with magnetic dye particles |
| FR1426252A (en) * | 1964-12-14 | 1966-01-28 | Magnetic coating | |
| US3503882A (en) * | 1966-09-06 | 1970-03-31 | Turco Paint & Varnish Co | Paint composition |
| JPS4839531A (en) * | 1971-09-21 | 1973-06-11 | ||
| JPS5188205A (en) * | 1975-01-31 | 1976-08-02 | JISEITORYONOSEIZOHOHO | |
| DD130792A1 (en) * | 1977-03-10 | 1978-05-03 | Ingrid Storbeck | MAGNETIC SUBSTANCE FOR INFORMATION CARRIER |
| JPS5688471A (en) * | 1979-12-20 | 1981-07-17 | Mitsui Toatsu Chem Inc | Magnetic paint composition |
-
1983
- 1983-07-19 DE DE3325960A patent/DE3325960C2/en not_active Expired
-
1984
- 1984-07-18 DE DE8484108472T patent/DE3480139D1/en not_active Expired
- 1984-07-18 EP EP84108472A patent/EP0133941B1/en not_active Expired
- 1984-07-18 AT AT84108472T patent/ATE47246T1/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4262037A (en) * | 1976-04-05 | 1981-04-14 | Hitachi, Ltd. | Method of producing ferromagnetic metal powder |
| DE2806280A1 (en) * | 1978-02-15 | 1979-08-23 | Senckel Hans Joachim | lacquer contg. iron particles - used to effect adhesion between articles by magnetic attraction |
| NL8202336A (en) * | 1982-06-09 | 1984-01-02 | Hubertus Josephus Hypolitus Ca | Ferromagnetic layer for magnetic signs prodn. - by incorporating ferromagnetic powder into colour paste and applying to substrate e.g. by screen printing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2860798A1 (en) * | 2003-10-10 | 2005-04-15 | Nicolas Triboulot | New primer or coating composition containing synthetic resin binder, diluent and iron filings with a specific particle size, used for making non-metallic surfaces sensitive to magnetism, e.g. for fixing magnetic objects to walls |
| WO2017168443A1 (en) * | 2016-03-30 | 2017-10-05 | Saint-Gobain Glass France | Magnetic glass member |
| US11643559B2 (en) | 2017-07-25 | 2023-05-09 | Magnomer, Inc. | Methods and compositions for magnetizable plastics |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0133941B1 (en) | 1989-10-11 |
| DE3325960A1 (en) | 1985-02-07 |
| DE3325960C2 (en) | 1985-06-20 |
| DE3480139D1 (en) | 1989-11-16 |
| ATE47246T1 (en) | 1989-10-15 |
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