FR1266773A - Procédé pour la production d'oxyde de fer-iii gamma, sous forme d'aiguilles, convenant notamment pour supports de magnétogrammes - Google Patents

Procédé pour la production d'oxyde de fer-iii gamma, sous forme d'aiguilles, convenant notamment pour supports de magnétogrammes

Info

Publication number
FR1266773A
FR1266773A FR836391A FR836391A FR1266773A FR 1266773 A FR1266773 A FR 1266773A FR 836391 A FR836391 A FR 836391A FR 836391 A FR836391 A FR 836391A FR 1266773 A FR1266773 A FR 1266773A
Authority
FR
France
Prior art keywords
magnetogram
needles
iron
supports
production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR836391A
Other languages
English (en)
Inventor
Josef Gruber
Karl Wintersberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Priority to FR836391A priority Critical patent/FR1266773A/fr
Application granted granted Critical
Publication of FR1266773A publication Critical patent/FR1266773A/fr
Expired legal-status Critical Current

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
    • G11B5/70626—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 containing non-metallic substances
    • G11B5/70642—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 containing non-metallic substances iron oxides
    • G11B5/70652—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 containing non-metallic substances iron oxides gamma - Fe2 O3
    • 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
    • G11B5/70626—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 containing non-metallic substances
    • G11B5/70642—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 containing non-metallic substances iron oxides
    • G11B5/70647—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 containing non-metallic substances iron oxides with a skin

Landscapes

  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
FR836391A 1960-08-22 1960-08-22 Procédé pour la production d'oxyde de fer-iii gamma, sous forme d'aiguilles, convenant notamment pour supports de magnétogrammes Expired FR1266773A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR836391A FR1266773A (fr) 1960-08-22 1960-08-22 Procédé pour la production d'oxyde de fer-iii gamma, sous forme d'aiguilles, convenant notamment pour supports de magnétogrammes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR836391A FR1266773A (fr) 1960-08-22 1960-08-22 Procédé pour la production d'oxyde de fer-iii gamma, sous forme d'aiguilles, convenant notamment pour supports de magnétogrammes

Publications (1)

Publication Number Publication Date
FR1266773A true FR1266773A (fr) 1961-07-17

Family

ID=8737759

Family Applications (1)

Application Number Title Priority Date Filing Date
FR836391A Expired FR1266773A (fr) 1960-08-22 1960-08-22 Procédé pour la production d'oxyde de fer-iii gamma, sous forme d'aiguilles, convenant notamment pour supports de magnétogrammes

Country Status (1)

Country Link
FR (1) FR1266773A (fr)

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