CA1015149A - Ferromagnetic chromium dioxide crystals - Google Patents

Ferromagnetic chromium dioxide crystals

Info

Publication number
CA1015149A
CA1015149A CA140,315A CA140315A CA1015149A CA 1015149 A CA1015149 A CA 1015149A CA 140315 A CA140315 A CA 140315A CA 1015149 A CA1015149 A CA 1015149A
Authority
CA
Canada
Prior art keywords
chromium dioxide
ferromagnetic chromium
dioxide crystals
crystals
ferromagnetic
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
CA140,315A
Other languages
English (en)
Inventor
Manfred Ohlinger
Matthias Schwarzmann
Bernd Leutner
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
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 Badische Anilin and Sodafabrik AG filed Critical Badische Anilin and Sodafabrik AG
Application granted granted Critical
Publication of CA1015149A publication Critical patent/CA1015149A/en
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
    • G11B5/70636—CrO2
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/02—Oxides or hydrates thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84—Particles 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
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of 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)
CA140,315A 1971-04-23 1972-04-21 Ferromagnetic chromium dioxide crystals Expired CA1015149A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA1015149A true CA1015149A (en) 1977-08-09

Family

ID=5805710

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140,315A Expired CA1015149A (en) 1971-04-23 1972-04-21 Ferromagnetic chromium dioxide crystals

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
DE2119932C3 (de) 1981-07-30

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