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 (enrdf_load_stackoverflow
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 (enrdf_load_stackoverflow)

Priority Applications (3)

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

Publications (2)

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

Family

ID=15025381

Family Applications (1)

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

Country Status (3)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6175062U (enrdf_load_stackoverflow) * 1984-10-22 1986-05-21
JPS6175063U (enrdf_load_stackoverflow) * 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
EP1512726B1 (de) 2003-09-03 2015-10-14 LANXESS Deutschland GmbH Verfahren zur herstellung von eisenoxidgelbpigmenten mit caco3 als fällungsmittel
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 (enrdf_load_stackoverflow) * 1969-11-13 1973-09-12

Cited By (2)

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

Also Published As

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

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