DE2119932C3 - Ferromagnetische Chromdioxidkristalle - Google Patents

Ferromagnetische Chromdioxidkristalle

Info

Publication number
DE2119932C3
DE2119932C3 DE2119932A DE2119932A DE2119932C3 DE 2119932 C3 DE2119932 C3 DE 2119932C3 DE 2119932 A DE2119932 A DE 2119932A DE 2119932 A DE2119932 A DE 2119932A DE 2119932 C3 DE2119932 C3 DE 2119932C3
Authority
DE
Germany
Prior art keywords
chromium dioxide
dioxide crystals
antimony
ferromagnetic
chromium
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
DE2119932A
Other languages
German (de)
English (en)
Other versions
DE2119932B2 (de
DE2119932A1 (de
Inventor
Matthias Dr. 6703 Limburgerhof Schwarzmann
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
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 filed Critical BASF SE
Priority to DE2119932A priority Critical patent/DE2119932C3/de
Priority to US3769087D priority patent/US3769087A/en
Priority to GB1807372A priority patent/GB1380650A/en
Priority to IT4978972A priority patent/IT952741B/it
Priority to CA140,315A priority patent/CA1015149A/en
Priority to JP3967772A priority patent/JPS556572B1/ja
Priority to FR7214454A priority patent/FR2134444B1/fr
Publication of DE2119932A1 publication Critical patent/DE2119932A1/de
Publication of DE2119932B2 publication Critical patent/DE2119932B2/de
Application granted granted Critical
Publication of DE2119932C3 publication Critical patent/DE2119932C3/de
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/68Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70Record 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
    • G11B5/706Record 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
    • G11B5/70626Record 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
    • G11B5/70636CrO2
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00Compounds of chromium
    • C01G37/02Oxides or hydrates thereof
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/80Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/90Magnetic feature
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31786Of polyester [e.g., alkyd, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
DE2119932A 1971-04-23 1971-04-23 Ferromagnetische Chromdioxidkristalle Expired DE2119932C3 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE2119932A DE2119932C3 (de) 1971-04-23 1971-04-23 Ferromagnetische Chromdioxidkristalle
US3769087D US3769087A (en) 1971-04-23 1972-04-18 Ferromagnetic chromium dioxide crystals
GB1807372A GB1380650A (en) 1971-04-23 1972-04-19 Ferromagnetic chromium dioxide crystals
IT4978972A IT952741B (it) 1971-04-23 1972-04-20 Cristalli di biossido di cromo ferromagnetici
CA140,315A CA1015149A (en) 1971-04-23 1972-04-21 Ferromagnetic chromium dioxide crystals
JP3967772A JPS556572B1 (OSRAM) 1971-04-23 1972-04-21
FR7214454A FR2134444B1 (OSRAM) 1971-04-23 1972-04-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2119932A DE2119932C3 (de) 1971-04-23 1971-04-23 Ferromagnetische Chromdioxidkristalle

Publications (3)

Publication Number Publication Date
DE2119932A1 DE2119932A1 (de) 1972-11-09
DE2119932B2 DE2119932B2 (de) 1980-10-23
DE2119932C3 true DE2119932C3 (de) 1981-07-30

Family

ID=5805710

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2119932A Expired DE2119932C3 (de) 1971-04-23 1971-04-23 Ferromagnetische Chromdioxidkristalle

Country Status (7)

Country Link
US (1) US3769087A (OSRAM)
JP (1) JPS556572B1 (OSRAM)
CA (1) CA1015149A (OSRAM)
DE (1) DE2119932C3 (OSRAM)
FR (1) FR2134444B1 (OSRAM)
GB (1) GB1380650A (OSRAM)
IT (1) IT952741B (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4068038A (en) * 1972-05-24 1978-01-10 Montecatini Edison S.P.A. Stabilized chromium dioxide compositions
DE2942646A1 (de) * 1979-10-22 1981-04-30 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von ferromagnetischem chromdioxid
CN114875244B (zh) * 2022-05-11 2023-05-19 中南大学 一种将高砷锑冶炼烟灰资源化再利用的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923683A (en) * 1957-06-19 1960-02-02 Du Pont Antimony-modified chromium oxide ferromagnetic compositions, their preparation and use
US3520811A (en) * 1967-11-13 1970-07-21 Du Pont Coated magnetic agglomerates containing chromium dioxide
US3585141A (en) * 1969-05-05 1971-06-15 Du Pont Stabilization of chromium dioxide by monomeric cyclic amines
US3512930A (en) * 1969-05-07 1970-05-19 Du Pont Stabilized ferromagnetic chromium dioxide
US3586630A (en) * 1969-05-08 1971-06-22 Du Pont Stabilization of chromium dioxide by organophosphorus compounds
US3686031A (en) * 1969-11-26 1972-08-22 Du Pont Metal phosphate coated ferromagnetic chromium oxide and its preparation
US3634252A (en) * 1970-06-22 1972-01-11 Du Pont Chromium dioxide recording compositions stabilized with long-chain ammonium salts
US3687726A (en) * 1970-10-19 1972-08-29 Du Pont Alumina coated chromium dioxide

Also Published As

Publication number Publication date
IT952741B (it) 1973-07-30
JPS556572B1 (OSRAM) 1980-02-18
FR2134444B1 (OSRAM) 1976-08-06
DE2119932B2 (de) 1980-10-23
FR2134444A1 (OSRAM) 1972-12-08
DE2119932A1 (de) 1972-11-09
GB1380650A (en) 1975-01-15
US3769087A (en) 1973-10-30
CA1015149A (en) 1977-08-09

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Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)