JPS5652856B2 - - Google Patents

Info

Publication number
JPS5652856B2
JPS5652856B2 JP13007573A JP13007573A JPS5652856B2 JP S5652856 B2 JPS5652856 B2 JP S5652856B2 JP 13007573 A JP13007573 A JP 13007573A JP 13007573 A JP13007573 A JP 13007573A JP S5652856 B2 JPS5652856 B2 JP S5652856B2
Authority
JP
Japan
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
JP13007573A
Other languages
Japanese (ja)
Other versions
JPS5080299A (OSRAM
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 filed Critical
Priority to JP13007573A priority Critical patent/JPS5652856B2/ja
Priority to GB4911874A priority patent/GB1445288A/en
Priority to DE19742455158 priority patent/DE2455158C2/de
Publication of JPS5080299A publication Critical patent/JPS5080299A/ja
Publication of JPS5652856B2 publication Critical patent/JPS5652856B2/ja
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
    • G11B5/70668—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 containing a dopant
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/06—Ferric oxide [Fe2O3]
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Dermatology (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Hard Magnetic Materials (AREA)
JP13007573A 1973-11-21 1973-11-21 Expired JPS5652856B2 (OSRAM)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP13007573A JPS5652856B2 (OSRAM) 1973-11-21 1973-11-21
GB4911874A GB1445288A (en) 1973-11-21 1974-11-13 Process for producing goethite
DE19742455158 DE2455158C2 (de) 1973-11-21 1974-11-21 Verfahren zur Herstellung von Goethit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13007573A JPS5652856B2 (OSRAM) 1973-11-21 1973-11-21

Publications (2)

Publication Number Publication Date
JPS5080299A JPS5080299A (OSRAM) 1975-06-30
JPS5652856B2 true JPS5652856B2 (OSRAM) 1981-12-15

Family

ID=15025381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13007573A Expired JPS5652856B2 (OSRAM) 1973-11-21 1973-11-21

Country Status (3)

Country Link
JP (1) JPS5652856B2 (OSRAM)
DE (1) DE2455158C2 (OSRAM)
GB (1) GB1445288A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175063U (OSRAM) * 1984-10-22 1986-05-21
JPS6175062U (OSRAM) * 1984-10-22 1986-05-21

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495164A (en) * 1980-05-30 1985-01-22 Toda Kogyo Corp. Process for producing acicular magnetite or acicular maghemite
DE10010940A1 (de) 2000-03-06 2001-09-13 Bayer Ag Verfahren zur Herstellung von Eisenoxid und seine Verwendung
DE10044398A1 (de) 2000-09-08 2002-03-21 Bayer Ag Verfahren zur Herstellung von Eisenoxidgelbpigmenten
PL1512726T3 (pl) 2003-09-03 2016-03-31 Lanxess Deutschland Gmbh Sposób wytwarzania żółtych pigmentów tlenku żelaza z CaCO3 jako środkiem strącającym
DE102006022449A1 (de) * 2006-05-13 2007-11-15 Lanxess Deutschland Gmbh Verbesserte Eisenoxidgelbpigmente
EP3517504A1 (en) 2018-01-26 2019-07-31 LANXESS Deutschland GmbH Process for the manufacturing of goethite pigments

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE906598C (de) * 1951-09-26 1954-03-15 Bayer Ag Verfahren zur Herstellung von Eisenoxydpigmenten
DE1176111B (de) * 1962-07-16 1964-08-20 Bayer Ag Verfahren zur Herstellung von ferro-magnetischem ª†-FeO
DE1792272B1 (de) * 1968-08-13 1971-02-18 Siegle & Co Gmbh G Verfahren zur Herstellung von leicht dispergierbaren transparenten Eisenoxidrotpigmenten der alpha-Modifikation
JPS4829718B1 (OSRAM) * 1969-11-13 1973-09-12

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175063U (OSRAM) * 1984-10-22 1986-05-21
JPS6175062U (OSRAM) * 1984-10-22 1986-05-21

Also Published As

Publication number Publication date
DE2455158C2 (de) 1983-02-17
DE2455158A1 (de) 1975-05-22
JPS5080299A (OSRAM) 1975-06-30
GB1445288A (en) 1976-08-11

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