IT1085216B - Biossido di cromo ferromagnetico stabilizzato e procedimento per la loro preparazione - Google Patents

Biossido di cromo ferromagnetico stabilizzato e procedimento per la loro preparazione

Info

Publication number
IT1085216B
IT1085216B IT2222477A IT2222477A IT1085216B IT 1085216 B IT1085216 B IT 1085216B IT 2222477 A IT2222477 A IT 2222477A IT 2222477 A IT2222477 A IT 2222477A IT 1085216 B IT1085216 B IT 1085216B
Authority
IT
Italy
Prior art keywords
stabilisation
chromium
cro2
hydroxide
zinc
Prior art date
Application number
IT2222477A
Other languages
English (en)
Inventor
Giampiero Basile
Elio Gallinotti
Giancarlo Boero
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
Priority to IT2222477A priority Critical patent/IT1085216B/it
Priority to FR7809340A priority patent/FR2386486A1/fr
Priority to NL7803520A priority patent/NL7803520A/xx
Priority to SE7803710A priority patent/SE7803710L/xx
Priority to DK146478A priority patent/DK146478A/da
Priority to DE19782814407 priority patent/DE2814407A1/de
Priority to US05/893,348 priority patent/US4169802A/en
Priority to AU34809/78A priority patent/AU3480978A/en
Priority to BR7802124A priority patent/BR7802124A/pt
Priority to ES468596A priority patent/ES468596A1/es
Priority to DD78204636A priority patent/DD135374A5/xx
Priority to GB13570/78A priority patent/GB1573857A/en
Priority to BE186658A priority patent/BE865810A/fr
Priority to JP4115178A priority patent/JPS53146994A/ja
Application granted granted Critical
Publication of IT1085216B publication Critical patent/IT1085216B/it

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
    • C01P2004/50—Agglomerated particles
    • 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
    • C01P2004/61—Micrometer sized, i.e. from 1-100 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)
  • Inorganic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Paints Or Removers (AREA)
IT2222477A 1977-04-07 1977-04-07 Biossido di cromo ferromagnetico stabilizzato e procedimento per la loro preparazione IT1085216B (it)

Priority Applications (14)

Application Number Priority Date Filing Date Title
IT2222477A IT1085216B (it) 1977-04-07 1977-04-07 Biossido di cromo ferromagnetico stabilizzato e procedimento per la loro preparazione
FR7809340A FR2386486A1 (fr) 1977-04-07 1978-03-30 Bioxyde de chrome ferromagnetique stabilise et son procede de preparation
SE7803710A SE7803710L (sv) 1977-04-07 1978-04-03 Stabiliserad ferromagnetisk kromdioxid och sett for dess framstellning
DK146478A DK146478A (da) 1977-04-07 1978-04-03 Stabiliseret ferromagnetisk chromdioxid og fremgangsmaade til fremstilling deraf
NL7803520A NL7803520A (nl) 1977-04-07 1978-04-03 Gestabiliseerd ferromagnetisch chroomdioxyde en werk- wijze voor het bereiden daarvan.
US05/893,348 US4169802A (en) 1977-04-07 1978-04-04 Stabilized ferromagnetic chromium dioxide and process for its preparation
DE19782814407 DE2814407A1 (de) 1977-04-07 1978-04-04 Stabilisiertes ferromagnetisches chromdioxid und verfahren zu dessen herstellung
AU34809/78A AU3480978A (en) 1977-04-07 1978-04-05 Stabilized ferromagnetic chromium dioxide
BR7802124A BR7802124A (pt) 1977-04-07 1978-04-05 Processo para estabilizacao de dioxido de cromo ferromagnetico
ES468596A ES468596A1 (es) 1977-04-07 1978-04-06 Procedimiento para estabilizar dioxido de cromo ferromagne- tico
DD78204636A DD135374A5 (de) 1977-04-07 1978-04-06 Stabilisiertes ferromagnetisches chromdioxid und verfahren zu dessen herstellung
GB13570/78A GB1573857A (en) 1977-04-07 1978-04-06 Stabilized ferromagnetic chromium dioxide and process for its preparation
BE186658A BE865810A (fr) 1977-04-07 1978-04-07 Bioxyde de chrome ferro-magnetique stabilise et son procede de preparation
JP4115178A JPS53146994A (en) 1977-04-07 1978-04-07 Stabillized ferromagnetic chrome dioxide and method of making same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2222477A IT1085216B (it) 1977-04-07 1977-04-07 Biossido di cromo ferromagnetico stabilizzato e procedimento per la loro preparazione

Publications (1)

Publication Number Publication Date
IT1085216B true IT1085216B (it) 1985-05-28

Family

ID=11193286

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2222477A IT1085216B (it) 1977-04-07 1977-04-07 Biossido di cromo ferromagnetico stabilizzato e procedimento per la loro preparazione

Country Status (3)

Country Link
AU (1) AU3480978A (it)
BE (1) BE865810A (it)
IT (1) IT1085216B (it)

Also Published As

Publication number Publication date
BE865810A (fr) 1978-10-09
AU3480978A (en) 1979-10-11

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