FR2156161A1 - Hard-wearing magnetic layers - from metal oxide/organic resin mixture contg water - Google Patents
Hard-wearing magnetic layers - from metal oxide/organic resin mixture contg waterInfo
- Publication number
- FR2156161A1 FR2156161A1 FR7235598A FR7235598A FR2156161A1 FR 2156161 A1 FR2156161 A1 FR 2156161A1 FR 7235598 A FR7235598 A FR 7235598A FR 7235598 A FR7235598 A FR 7235598A FR 2156161 A1 FR2156161 A1 FR 2156161A1
- Authority
- FR
- France
- Prior art keywords
- metal oxide
- organic resin
- water
- hard
- magnetic layers
- Prior art date
- 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.)
- Withdrawn
Links
- 229910044991 metal oxide Inorganic materials 0.000 title abstract 4
- 150000004706 metal oxides Chemical class 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 4
- 239000011347 resin Substances 0.000 title abstract 2
- 229920005989 resin Polymers 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 title 1
- 239000000969 carrier Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/445—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a compound, e.g. Fe3O4
-
- 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/842—Coating a support with a liquid magnetic dispersion
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18788871A | 1971-10-08 | 1971-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2156161A1 true FR2156161A1 (en) | 1973-05-25 |
Family
ID=22690906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7235598A Withdrawn FR2156161A1 (en) | 1971-10-08 | 1972-10-06 | Hard-wearing magnetic layers - from metal oxide/organic resin mixture contg water |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS519282B2 (enrdf_load_stackoverflow) |
| DE (1) | DE2239287A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2156161A1 (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54114769A (en) * | 1978-02-28 | 1979-09-07 | Shikhirev Boris N | Method of treating sheet material |
| DE3407468A1 (de) * | 1984-02-29 | 1985-08-29 | Siemens AG, 1000 Berlin und 8000 München | Kunststoffe mit magnetischer abschirmwirkung |
| JPS63103417A (ja) * | 1986-10-20 | 1988-05-09 | Fuji Photo Film Co Ltd | 磁気記録媒体 |
-
1972
- 1972-08-09 JP JP47079202A patent/JPS519282B2/ja not_active Expired
- 1972-08-10 DE DE19722239287 patent/DE2239287A1/de active Pending
- 1972-10-06 FR FR7235598A patent/FR2156161A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4846308A (enrdf_load_stackoverflow) | 1973-07-02 |
| JPS519282B2 (enrdf_load_stackoverflow) | 1976-03-25 |
| DE2239287A1 (de) | 1973-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |