DK0379062T3 - Nåleformede jern-magnetpigmenter med indstillelig koerzitivfeltstyrke og fremgangsmåde til fremstilling af samme - Google Patents

Nåleformede jern-magnetpigmenter med indstillelig koerzitivfeltstyrke og fremgangsmåde til fremstilling af samme

Info

Publication number
DK0379062T3
DK0379062T3 DK90100502.5T DK90100502T DK0379062T3 DK 0379062 T3 DK0379062 T3 DK 0379062T3 DK 90100502 T DK90100502 T DK 90100502T DK 0379062 T3 DK0379062 T3 DK 0379062T3
Authority
DK
Denmark
Prior art keywords
needle
adjustable
producing
same
field strength
Prior art date
Application number
DK90100502.5T
Other languages
English (en)
Inventor
Helmut Dr Bonnemann
Werner Dr Brijoux
Rainer Brinkmann
Original Assignee
Studiengesellschaft Kohle Mbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Studiengesellschaft Kohle Mbh filed Critical Studiengesellschaft Kohle Mbh
Application granted granted Critical
Publication of DK0379062T3 publication Critical patent/DK0379062T3/da

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G11B5/70615—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys containing Fe metal or alloys

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)
  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
DK90100502.5T 1989-01-14 1990-01-11 Nåleformede jern-magnetpigmenter med indstillelig koerzitivfeltstyrke og fremgangsmåde til fremstilling af samme DK0379062T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3901027A DE3901027A1 (de) 1989-01-14 1989-01-14 Nadelfoermige eisen-magnetpigmente mit einstellbarer koezitivfeldstaerke und verfahren zu deren herstellung

Publications (1)

Publication Number Publication Date
DK0379062T3 true DK0379062T3 (da) 1994-06-20

Family

ID=6372123

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90100502.5T DK0379062T3 (da) 1989-01-14 1990-01-11 Nåleformede jern-magnetpigmenter med indstillelig koerzitivfeltstyrke og fremgangsmåde til fremstilling af samme

Country Status (9)

Country Link
US (1) US5053075A (da)
EP (1) EP0379062B1 (da)
JP (1) JPH02276209A (da)
AT (1) ATE106591T1 (da)
CA (1) CA2007408A1 (da)
DE (2) DE3901027A1 (da)
DK (1) DK0379062T3 (da)
ES (1) ES2054103T3 (da)
IE (1) IE64784B1 (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3934351A1 (de) * 1989-10-14 1991-04-18 Studiengesellschaft Kohle Mbh Verfahren zur herstellung von mikrokristallinen bis amorphen metall- bzw. legierungspulvern und ohne schutzkolloid in organischen solventien geloesten metallen bzw. legierungen

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1215574A (en) * 1967-01-24 1970-12-09 Alfred Richard Burkin Deposition of metal values
US3623859A (en) * 1970-05-22 1971-11-30 Ampex Process of making acicular stable magnetic iron particles
JPS4922630B1 (da) * 1970-06-23 1974-06-10
DE2646348C2 (de) * 1976-10-14 1986-08-28 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von nadelförmigen, ferromagnetischen, im wesentlichen aus Eisen bestehenden Metallteilchen und deren Verwendung zur Herstellung von magnetischen Aufzeichnungsträgern
DE2907255A1 (de) * 1979-02-24 1980-09-04 Basf Ag Verfahren zur herstellung nadelfoermiger ferromagnetischer eisenteilchen
JPS5676509A (en) * 1979-11-28 1981-06-24 Tdk Corp Manufacture of magnetic powder
DE3021111A1 (de) * 1980-06-04 1981-12-17 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von nadelfoermigen, im wesentlichen aus eisen bestehenden, ferromagnetischen metallteilchen
JPS579802A (en) * 1980-06-20 1982-01-19 Dainippon Ink & Chem Inc Metallic magnetic powder and its manufacture

Also Published As

Publication number Publication date
ES2054103T3 (es) 1994-08-01
US5053075A (en) 1991-10-01
JPH02276209A (ja) 1990-11-13
ATE106591T1 (de) 1994-06-15
EP0379062A3 (de) 1991-05-22
EP0379062B1 (de) 1994-06-01
DE59005846D1 (de) 1994-07-07
DE3901027A1 (de) 1990-07-26
EP0379062A2 (de) 1990-07-25
IE900134L (en) 1990-07-14
CA2007408A1 (en) 1990-07-14
IE64784B1 (en) 1995-09-06

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