CH604343A5 - - Google Patents

Info

Publication number
CH604343A5
CH604343A5 CH722473A CH722473A CH604343A5 CH 604343 A5 CH604343 A5 CH 604343A5 CH 722473 A CH722473 A CH 722473A CH 722473 A CH722473 A CH 722473A CH 604343 A5 CH604343 A5 CH 604343A5
Authority
CH
Switzerland
Application number
CH722473A
Inventor
Ugo Montiglio
Pierfrancesco Aspes
Giampiero Basile
Carlo Scotti
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
Priority claimed from IT2477372A external-priority patent/IT955797B/it
Priority claimed from IT2139873A external-priority patent/IT1045821B/it
Application filed by Montedison Spa filed Critical Montedison Spa
Publication of CH604343A5 publication Critical patent/CH604343A5/xx

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
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • 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)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Hard Magnetic Materials (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
CH722473A 1972-05-24 1973-05-18 CH604343A5 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2477372A IT955797B (it) 1972-05-24 1972-05-24 Biossido di cromo stabilizzato
IT2139873A IT1045821B (it) 1973-03-09 1973-03-09 Biossido di cromo stabilizzato

Publications (1)

Publication Number Publication Date
CH604343A5 true CH604343A5 (sv) 1978-09-15

Family

ID=26327886

Family Applications (1)

Application Number Title Priority Date Filing Date
CH722473A CH604343A5 (sv) 1972-05-24 1973-05-18

Country Status (8)

Country Link
JP (1) JPS4949898A (sv)
CA (1) CA1013130A (sv)
CH (1) CH604343A5 (sv)
DE (1) DE2325719A1 (sv)
FR (1) FR2185840B1 (sv)
GB (1) GB1435392A (sv)
NL (1) NL7306877A (sv)
SE (1) SE404274B (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386486A1 (fr) * 1977-04-07 1978-11-03 Montedison Spa Bioxyde de chrome ferromagnetique stabilise et son procede de preparation
JPS55132005A (en) * 1979-04-02 1980-10-14 Ken Namikawa Ferromagnetic powder and manufacture therefor
US4382982A (en) * 1979-12-07 1983-05-10 Ici Australia Limited Process for protecting magnetic particles with chromium oxide
NL8100014A (nl) * 1981-01-06 1982-08-02 Philips Nv Magnetisch registratie element alsmede methoden voor de vervaardiging ervan.
DE3610411A1 (de) * 1986-03-27 1987-10-01 Basf Ag Verfahren zur stabilisierung von nadelfoermigem ferromagnetischem chromdioxid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686031A (en) * 1969-11-26 1972-08-22 Du Pont Metal phosphate coated ferromagnetic chromium oxide and its preparation

Also Published As

Publication number Publication date
SE404274B (sv) 1978-09-25
DE2325719A1 (de) 1973-12-13
JPS4949898A (sv) 1974-05-15
CA1013130A (en) 1977-07-05
GB1435392A (en) 1976-05-12
FR2185840B1 (sv) 1976-06-11
FR2185840A1 (sv) 1974-01-04
NL7306877A (sv) 1973-11-27

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Legal Events

Date Code Title Description
PL Patent ceased