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
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
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- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742459766 DE2459766A1 (de) | 1974-12-18 | 1974-12-18 | Verfahren zur stabilisierung von chromdioxid-magnetpigmenten |
DE19752538792 DE2538792A1 (de) | 1975-09-01 | 1975-09-01 | Verfahren zur stabilisierung von chromdioxid-magnetpigmenten |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5186796A true JPS5186796A (ja) | 1976-07-29 |
Family
ID=25768117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50148548A Pending JPS5186796A (ja) | 1974-12-18 | 1975-12-15 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5186796A (ja) |
CA (1) | CA1079057A (ja) |
FR (1) | FR2295096A1 (ja) |
GB (1) | GB1527760A (ja) |
IT (1) | IT1060452B (ja) |
NL (1) | NL7514524A (ja) |
Cited By (4)
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 (ja) * | 1986-08-29 | 1988-03-14 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPH04184903A (ja) * | 1990-11-19 | 1992-07-01 | Toda Kogyo Corp | 磁気記録用磁性粒子粉末の製造法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2617809C2 (de) * | 1976-04-23 | 1984-09-20 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Stabilisierung von Chromdioxid-Magnetpigmenten und seine Verwendung |
-
1975
- 1975-12-11 CA CA241,679A patent/CA1079057A/en not_active Expired
- 1975-12-12 NL NL7514524A patent/NL7514524A/xx not_active Application Discontinuation
- 1975-12-15 JP JP50148548A patent/JPS5186796A/ja active Pending
- 1975-12-16 FR FR7538432A patent/FR2295096A1/fr active Pending
- 1975-12-17 GB GB5156875A patent/GB1527760A/en not_active Expired
- 1975-12-17 IT IT5274375A patent/IT1060452B/it active
Cited By (4)
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 (ja) * | 1986-08-29 | 1988-03-14 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
JPH04184903A (ja) * | 1990-11-19 | 1992-07-01 | Toda Kogyo Corp | 磁気記録用磁性粒子粉末の製造法 |
Also Published As
Publication number | Publication date |
---|---|
FR2295096A1 (fr) | 1976-07-16 |
IT1060452B (it) | 1982-08-20 |
GB1527760A (en) | 1978-10-11 |
CA1079057A (en) | 1980-06-10 |
NL7514524A (nl) | 1976-06-22 |