GB1277822A - Magnetic recording media - Google Patents
Magnetic recording mediaInfo
- Publication number
- GB1277822A GB1277822A GB51470/69A GB5147069A GB1277822A GB 1277822 A GB1277822 A GB 1277822A GB 51470/69 A GB51470/69 A GB 51470/69A GB 5147069 A GB5147069 A GB 5147069A GB 1277822 A GB1277822 A GB 1277822A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic
- particle size
- pigment
- particles
- specified
- 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.)
- Expired
Links
- 239000002245 particle Substances 0.000 abstract 7
- 239000000049 pigment Substances 0.000 abstract 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- 239000011230 binding agent Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052580 B4C Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229940090961 chromium dioxide Drugs 0.000 abstract 1
- 229940117975 chromium trioxide Drugs 0.000 abstract 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 1
- IAQWMWUKBQPOIY-UHFFFAOYSA-N chromium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Cr+4] IAQWMWUKBQPOIY-UHFFFAOYSA-N 0.000 abstract 1
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 abstract 1
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 abstract 1
- 239000010431 corundum Substances 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000011019 hematite Substances 0.000 abstract 1
- 229910052595 hematite Inorganic materials 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000006249 magnetic particle Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229920006267 polyester film Polymers 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
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
- G11B5/708—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 addition of non-magnetic particles to the layer
- G11B5/7085—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 addition of non-magnetic particles to the layer non-magnetic abrasive particles
Landscapes
- 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 |
|---|---|---|---|
| DE19681804393 DE1804393A1 (de) | 1968-10-22 | 1968-10-22 | Verfahren zur Herstellung von magnetischen Aufzeichnungstraegern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1277822A true GB1277822A (en) | 1972-06-14 |
Family
ID=5711131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB51470/69A Expired GB1277822A (en) | 1968-10-22 | 1969-10-21 | Magnetic recording media |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS509401B1 (enExample) |
| BE (1) | BE740578A (enExample) |
| DE (1) | DE1804393A1 (enExample) |
| FR (1) | FR2021243A1 (enExample) |
| GB (1) | GB1277822A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2231576A (en) * | 1989-03-28 | 1990-11-21 | Tdk Corp | Magnetic recording medium |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2254981A1 (de) * | 1972-11-10 | 1974-06-12 | Basf Ag | Verfahren zur herstellung von magnetplatten mit duennen magnetschichten |
| JPS5525406A (en) * | 1978-08-11 | 1980-02-23 | Hitachi Ltd | Preparation of coating composition for magnetic recording disc |
| JPS5923009B2 (ja) * | 1979-06-26 | 1984-05-30 | 日本ビクター株式会社 | 磁気記録媒体 |
| JPS5724027A (en) * | 1980-07-16 | 1982-02-08 | Tdk Corp | Magnetic recording medium |
| JPS5758227A (en) * | 1980-09-25 | 1982-04-07 | Tdk Corp | Magnetic recording medium |
| JPS57162127A (en) * | 1981-03-31 | 1982-10-05 | Fuji Photo Film Co Ltd | Magnetic recording body |
| JPS57183628A (en) * | 1981-05-07 | 1982-11-12 | Fuji Photo Film Co Ltd | Magnetic recording medium |
| US4778714A (en) * | 1985-10-11 | 1988-10-18 | Minnesota Mining And Manufacturing Company | Nonabrasive magnetic recording tape |
-
1968
- 1968-10-22 DE DE19681804393 patent/DE1804393A1/de active Pending
-
1969
- 1969-10-21 BE BE740578D patent/BE740578A/xx unknown
- 1969-10-21 GB GB51470/69A patent/GB1277822A/en not_active Expired
- 1969-10-22 FR FR6936181A patent/FR2021243A1/fr not_active Withdrawn
- 1969-10-22 JP JP44083949A patent/JPS509401B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2231576A (en) * | 1989-03-28 | 1990-11-21 | Tdk Corp | Magnetic recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1804393A1 (de) | 1970-05-27 |
| JPS509401B1 (enExample) | 1975-04-12 |
| FR2021243A1 (enExample) | 1970-07-17 |
| BE740578A (enExample) | 1970-04-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |