AU1911876A - Ferogmagnetic chromium dioxide - Google Patents

Ferogmagnetic chromium dioxide

Info

Publication number
AU1911876A
AU1911876A AU19118/76A AU1911876A AU1911876A AU 1911876 A AU1911876 A AU 1911876A AU 19118/76 A AU19118/76 A AU 19118/76A AU 1911876 A AU1911876 A AU 1911876A AU 1911876 A AU1911876 A AU 1911876A
Authority
AU
Australia
Prior art keywords
ferogmagnetic
chromium dioxide
chromium
dioxide
ferogmagnetic 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
AU19118/76A
Other versions
AU502999B2 (en
Inventor
G. Mazza A Basila
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.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Publication of AU1911876A publication Critical patent/AU1911876A/en
Application granted granted Critical
Publication of AU502999B2 publication Critical patent/AU502999B2/en
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
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00Compounds of chromium
    • C01G37/02Oxides or hydrates thereof
    • C01G37/027Chromium dioxide
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/42Magnetic properties
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/60Optical properties, e.g. expressed in CIELAB-values
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Magnetic Record Carriers (AREA)
  • Chemical Treatment Of Metals (AREA)
AU19118/76A 1975-10-31 1976-10-28 Ferogmagnetic chromium dioxide Expired AU502999B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT28915/75A IT1045191B (en) 1975-10-31 1975-10-31 PROCEDURE FOR THE PRODUCTION OF FERROMAGNETIC CHROMIUM DIOXIDE
ITIT28915/75 1975-10-31

Publications (2)

Publication Number Publication Date
AU1911876A true AU1911876A (en) 1978-05-04
AU502999B2 AU502999B2 (en) 1979-08-16

Family

ID=11224583

Family Applications (1)

Application Number Title Priority Date Filing Date
AU19118/76A Expired AU502999B2 (en) 1975-10-31 1976-10-28 Ferogmagnetic chromium dioxide

Country Status (17)

Country Link
JP (1) JPS5274597A (en)
AT (1) AT356062B (en)
AU (1) AU502999B2 (en)
BE (1) BE847812A (en)
BR (1) BR7607234A (en)
CA (1) CA1090555A (en)
CH (1) CH625193A5 (en)
CS (1) CS207373B2 (en)
DD (1) DD127640A5 (en)
DE (1) DE2648305C3 (en)
DK (1) DK481376A (en)
ES (1) ES452891A1 (en)
FR (1) FR2329594A1 (en)
GB (1) GB1524576A (en)
IT (1) IT1045191B (en)
NL (1) NL7611785A (en)
SE (1) SE7611815L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524008A (en) * 1983-12-16 1985-06-18 E. I. Du Pont De Nemours And Company Controlled initiation chromium dioxide synthesis
DE3728453A1 (en) * 1987-08-26 1989-03-09 Basf Ag METHOD FOR PRODUCING MODIFIED FERROMAGNETIC CHROMDIOXIDE
DE3837646A1 (en) * 1988-11-05 1990-05-10 Basf Ag NEEDLE-SHAPED, ESSENTIAL CHROMDIOXIDE, FERROMAGNETIC MATERIAL
DE4339841A1 (en) * 1993-11-23 1995-05-24 Basf Magnetics Gmbh Finely divided needle-like magnetic chromium di:oxide

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885365A (en) * 1956-10-22 1959-05-05 Du Pont Ruthenium-modified chromium oxide ferromagnetic compositions, their pre-aration and use
DE1467238A1 (en) * 1963-07-24 1969-01-23
US3278263A (en) * 1964-11-27 1966-10-11 Du Pont Ferromagnetic chromium dioxide and preparation thereof
CH468923A (en) * 1967-07-21 1969-02-28 Ferag Ag Transport device for flat structures occurring in a scale formation
DE1802469A1 (en) * 1968-10-11 1971-10-28 Bayer Ag Process for the production of ferromagnetic chromium dioxide
DE1922409A1 (en) * 1969-05-02 1970-11-12 Bayer Ag Process for the production of ferromagnetic chromium dioxide
DE2022820C3 (en) * 1970-05-11 1980-01-03 Basf Ag, 6700 Ludwigshafen Process for the production of highly coercive chromium dioxide
AU452489B2 (en) * 1971-03-04 1974-08-16 Montecatini Edisons. P. A Process for preparing ferromagnetic chromium dioxide
JPS497198A (en) * 1972-05-12 1974-01-22
IT956230B (en) * 1972-04-22 1973-10-10 Montedison Spa COMPOSITION OF MODIFIED FERROMAGNETIC CHROME DIOXIDE AND PREPARATION P OCES SO

Also Published As

Publication number Publication date
AU502999B2 (en) 1979-08-16
DE2648305B2 (en) 1980-07-03
DE2648305A1 (en) 1977-05-12
GB1524576A (en) 1978-09-13
NL7611785A (en) 1977-05-03
AT356062B (en) 1980-04-10
FR2329594B1 (en) 1981-07-31
DE2648305C3 (en) 1982-11-25
BE847812A (en) 1977-04-29
JPS5722893B2 (en) 1982-05-15
BR7607234A (en) 1977-09-13
ATA800476A (en) 1979-09-15
SE7611815L (en) 1977-05-01
DD127640A5 (en) 1977-10-05
IT1045191B (en) 1980-05-10
DK481376A (en) 1977-05-01
ES452891A1 (en) 1977-10-16
CS207373B2 (en) 1981-07-31
CA1090555A (en) 1980-12-02
JPS5274597A (en) 1977-06-22
FR2329594A1 (en) 1977-05-27
CH625193A5 (en) 1981-09-15

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