JPS57111829A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS57111829A JPS57111829A JP55188971A JP18897180A JPS57111829A JP S57111829 A JPS57111829 A JP S57111829A JP 55188971 A JP55188971 A JP 55188971A JP 18897180 A JP18897180 A JP 18897180A JP S57111829 A JPS57111829 A JP S57111829A
- Authority
- JP
- Japan
- Prior art keywords
- properties
- magnetic
- recording medium
- magnetic recording
- equations
- 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.)
- Granted
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
- G11B5/708—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
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To improve the dispersing properties, the surface properties, the wear resistance, the S/N, the sensitivity, etc., by processing the ferromagnetic powder with a titanium coupling agent. CONSTITUTION:A magnetic coating material having the excellent dispersing properties and preserving properties is obtained by kneading at least a kind of the compounds shown by equations[I]-[IV], the magnetic powder, a binder and a solvent, respectively. In these equations, R1 and R2 are hydrocarbon groups for substitution and unsubstitution respectively, R2 is a bivalent organic group, and n is an integer of 0 or 1-3. Such magnetic coating material is coated on a supporter in the forme of a layer and then dried up. Thus a magnetic recording medium is obtained with excellent surface properties and high wear resistance. These compounds are used preferably in a range of 0.5-8pts.wt. to the 100pts.wt. ordinary magnetic powder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55188971A JPS57111829A (en) | 1980-12-27 | 1980-12-27 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55188971A JPS57111829A (en) | 1980-12-27 | 1980-12-27 | Magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57111829A true JPS57111829A (en) | 1982-07-12 |
JPS6248297B2 JPS6248297B2 (en) | 1987-10-13 |
Family
ID=16233124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55188971A Granted JPS57111829A (en) | 1980-12-27 | 1980-12-27 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57111829A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57210442A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS57210436A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS57210434A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS57210439A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS6258422A (en) * | 1985-09-06 | 1987-03-14 | Konishiroku Photo Ind Co Ltd | Magnetic recording medium |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5658135A (en) * | 1979-10-13 | 1981-05-21 | Sony Corp | Magnetic recording medium |
JPS5688471A (en) * | 1979-12-20 | 1981-07-17 | Mitsui Toatsu Chem Inc | Magnetic paint composition |
JPS5764330A (en) * | 1980-10-03 | 1982-04-19 | Fuji Photo Film Co Ltd | Magnetic recording medium |
-
1980
- 1980-12-27 JP JP55188971A patent/JPS57111829A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5658135A (en) * | 1979-10-13 | 1981-05-21 | Sony Corp | Magnetic recording medium |
JPS5688471A (en) * | 1979-12-20 | 1981-07-17 | Mitsui Toatsu Chem Inc | Magnetic paint composition |
JPS5764330A (en) * | 1980-10-03 | 1982-04-19 | Fuji Photo Film Co Ltd | Magnetic recording medium |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57210442A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS57210436A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS57210434A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS57210439A (en) * | 1981-06-20 | 1982-12-24 | Hitachi Maxell Ltd | Magnetic recording medium |
JPH0248968B2 (en) * | 1981-06-20 | 1990-10-26 | Hitachi Maxell | |
JPH0248971B2 (en) * | 1981-06-20 | 1990-10-26 | Hitachi Maxell | |
JPH0248973B2 (en) * | 1981-06-20 | 1990-10-26 | Hitachi Maxell | |
JPH0248969B2 (en) * | 1981-06-20 | 1990-10-26 | Hitachi Maxell | |
JPS6258422A (en) * | 1985-09-06 | 1987-03-14 | Konishiroku Photo Ind Co Ltd | Magnetic recording medium |
Also Published As
Publication number | Publication date |
---|---|
JPS6248297B2 (en) | 1987-10-13 |
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