JPS5186796A - - Google Patents

Info

Publication number
JPS5186796A
JPS5186796A JP50148548A JP14854875A JPS5186796A JP S5186796 A JPS5186796 A JP S5186796A JP 50148548 A JP50148548 A JP 50148548A JP 14854875 A JP14854875 A JP 14854875A JP S5186796 A JPS5186796 A JP S5186796A
Authority
JP
Japan
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.)
Pending
Application number
JP50148548A
Other languages
Japanese (ja)
Inventor
Shenafuingeru Ezuaruto
Daikuneru Pauru
Kesuteru Eeberuharuto
Ooringeru Manfureeto
Sheefueru Deiiteru
Shutsumupufui Ueruneru
Amoruto Yurugen
Deiitorihi Zaireru Kurausu
Nesutoreru Haintsu
Amupur Otsutoo
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
BASF SE
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 DE19742459766 external-priority patent/DE2459766A1/en
Priority claimed from DE19752538792 external-priority patent/DE2538792A1/en
Application filed by BASF SE filed Critical BASF SE
Publication of JPS5186796A publication Critical patent/JPS5186796A/ja
Pending 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
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/34—Compounds of chromium
    • C09C1/346—Chromium oxides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/12—Treatment with organosilicon compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Hard Magnetic Materials (AREA)
JP50148548A 1974-12-18 1975-12-15 Pending JPS5186796A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742459766 DE2459766A1 (en) 1974-12-18 1974-12-18 Stabilised chromium dioxide magnetic pigments - obtd. by treatment with a hydrolysis prod. of an alkoxy silane and heat treating the prod.
DE19752538792 DE2538792A1 (en) 1975-09-01 1975-09-01 Stabilising magnetic chromium dioxide pigments - by suspending in aqueous medium, treating with hydrolysable organic silane, and drying

Publications (1)

Publication Number Publication Date
JPS5186796A true JPS5186796A (en) 1976-07-29

Family

ID=25768117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50148548A Pending JPS5186796A (en) 1974-12-18 1975-12-15

Country Status (6)

Country Link
JP (1) JPS5186796A (en)
CA (1) CA1079057A (en)
FR (1) FR2295096A1 (en)
GB (1) GB1527760A (en)
IT (1) IT1060452B (en)
NL (1) NL7514524A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134899A (en) * 1975-05-17 1976-11-22 Hitachi Maxell Ltd Processing method of magnetic powder
JPS56130822A (en) * 1980-03-19 1981-10-14 Hitachi Maxell Ltd Magnetic recording medium
JPS6358620A (en) * 1986-08-29 1988-03-14 Fuji Photo Film Co Ltd Magnetic recording medium
JPH04184903A (en) * 1990-11-19 1992-07-01 Toda Kogyo Corp Manufacture of magnetic particle power for magnetic recording

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2617809C2 (en) * 1976-04-23 1984-09-20 Basf Ag, 6700 Ludwigshafen Process for the stabilization of chromium dioxide magnetic pigments and its use

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134899A (en) * 1975-05-17 1976-11-22 Hitachi Maxell Ltd Processing method of magnetic powder
JPS56130822A (en) * 1980-03-19 1981-10-14 Hitachi Maxell Ltd Magnetic recording medium
JPS6358620A (en) * 1986-08-29 1988-03-14 Fuji Photo Film Co Ltd Magnetic recording medium
JPH04184903A (en) * 1990-11-19 1992-07-01 Toda Kogyo Corp Manufacture of magnetic particle power for magnetic recording

Also Published As

Publication number Publication date
FR2295096A1 (en) 1976-07-16
IT1060452B (en) 1982-08-20
GB1527760A (en) 1978-10-11
CA1079057A (en) 1980-06-10
NL7514524A (en) 1976-06-22

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