NO128866B - - Google Patents

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Publication number
NO128866B
NO128866B NO00616/72A NO61672A NO128866B NO 128866 B NO128866 B NO 128866B NO 00616/72 A NO00616/72 A NO 00616/72A NO 61672 A NO61672 A NO 61672A NO 128866 B NO128866 B NO 128866B
Authority
NO
Norway
Prior art keywords
temperature
cooled
mixture
parts
textile material
Prior art date
Application number
NO00616/72A
Other languages
English (en)
Norwegian (no)
Inventor
D Morero
U Montiglio
P Aspes
G Basile
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 NO128866B publication Critical patent/NO128866B/no

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/0302Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity characterised by unspecified or heterogeneous hardness or specially adapted for magnetic hardness transitions
    • H01F1/0311Compounds
    • H01F1/0313Oxidic compounds
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00Compounds of chromium
    • C01G37/02Oxides or hydrates thereof
    • 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
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/70Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72Crystal-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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/70Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/74Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by peak-intensities or a ratio thereof only
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/80Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/82Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/10Particle morphology extending in one dimension, e.g. needle-like
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/54Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/62Submicrometer sized, i.e. from 0.1-1 micrometer
    • 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
    • C01P2006/80Compositional purity
    • C01P2006/82Compositional purity water content

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Hard Magnetic Materials (AREA)
  • Magnetic Record Carriers (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
NO00616/72A 1971-03-04 1972-02-29 NO128866B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2131671 1971-03-04

Publications (1)

Publication Number Publication Date
NO128866B true NO128866B (de) 1974-01-21

Family

ID=11179995

Family Applications (1)

Application Number Title Priority Date Filing Date
NO00616/72A NO128866B (de) 1971-03-04 1972-02-29

Country Status (21)

Country Link
US (1) US3929978A (de)
JP (1) JPS515999B1 (de)
AT (1) AT311923B (de)
AU (1) AU452489B2 (de)
BE (1) BE780219A (de)
BR (1) BR7201246D0 (de)
CA (1) CA960434A (de)
CH (1) CH573361A5 (de)
CS (1) CS152410B2 (de)
DD (1) DD100925A5 (de)
DE (1) DE2210059A1 (de)
DK (1) DK137446B (de)
ES (1) ES400413A1 (de)
FI (1) FI53203C (de)
FR (1) FR2128448B1 (de)
GB (1) GB1343623A (de)
NL (1) NL7202599A (de)
NO (1) NO128866B (de)
PL (1) PL83251B1 (de)
SE (1) SE369185B (de)
ZA (1) ZA721366B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1012202B (it) 1974-05-09 1977-03-10 Montedison Spa Procedimento per la produzione di biossido di cromo ferromagnetico
IT1042133B (it) * 1975-08-28 1980-01-30 Stoppani P & Co Procedimento per il recupero e la valorizzazione degli scarti della fabbricazione dell anidri de cromica
GB1516774A (en) * 1975-10-10 1978-07-05 Anvar Process for preparing chromium dioxide
IT1045191B (it) * 1975-10-31 1980-05-10 Montedison Spa Procedimento per la produzione di biossido di cromo ferromagnetico
DE3536116A1 (de) * 1985-10-10 1987-04-16 Basf Ag Verfahren zur stabilisierung von nadelfoermigem ferromagnetischem chromdioxid
US4698220A (en) * 1986-03-28 1987-10-06 E. I. Du Pont De Nemours And Company Partitioned reduction process for ferromagnetic chromium dioxide
US4769165A (en) * 1987-01-20 1988-09-06 E. I. Du Pont De Nemours And Company Process for synthesis of ferromagnetic chromium dioxide
DE3837646A1 (de) * 1988-11-05 1990-05-10 Basf Ag Nadelfoermiges, im wesentlichen aus chromdioxid bestehendes, ferromagnetisches material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117093A (en) * 1960-10-24 1964-01-07 Du Pont Process for the preparation of ferromagnetic chromium dioxide
FR1298581A (fr) * 1961-07-12 1962-07-13 Du Pont Procédé de fabrication de bioxyde de chrome magnétique, produits obtenus et leur utilisation dans les éléments d'enregistrement magnétique
US3451771A (en) * 1966-10-27 1969-06-24 Du Pont Preparation of ferromagnetic cro2 by heating cro3 in the presence of o2 and cr2o3
US3486851A (en) * 1967-03-01 1969-12-30 Du Pont Formation of ferromagnetic cro2 by decomposition of higher valent chromium oxides

Also Published As

Publication number Publication date
FI53203B (de) 1977-11-30
AT311923B (de) 1973-12-10
FR2128448B1 (de) 1977-04-01
AU452489B2 (en) 1974-08-16
ES400413A1 (es) 1975-01-01
GB1343623A (en) 1974-01-16
DK137446C (de) 1978-08-14
ZA721366B (en) 1972-11-29
AU3926872A (en) 1973-08-30
CA960434A (en) 1975-01-07
DD100925A5 (de) 1973-10-12
NL7202599A (de) 1972-09-06
FR2128448A1 (de) 1972-10-20
CS152410B2 (de) 1973-12-19
PL83251B1 (de) 1975-12-31
DE2210059A1 (de) 1972-09-07
CH573361A5 (de) 1976-03-15
BE780219A (fr) 1972-09-04
SE369185B (de) 1974-08-12
DK137446B (da) 1978-03-06
US3929978A (en) 1975-12-30
JPS515999B1 (de) 1976-02-24
BR7201246D0 (pt) 1973-06-07
FI53203C (de) 1978-03-10

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