JPS563431A - Magnetic recording medium and its manufacture - Google Patents
Magnetic recording medium and its manufactureInfo
- Publication number
- JPS563431A JPS563431A JP7557879A JP7557879A JPS563431A JP S563431 A JPS563431 A JP S563431A JP 7557879 A JP7557879 A JP 7557879A JP 7557879 A JP7557879 A JP 7557879A JP S563431 A JPS563431 A JP S563431A
- Authority
- JP
- Japan
- Prior art keywords
- paraffin
- recording medium
- magnetic
- magnetic recording
- durability
- 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.)
- Pending
Links
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To obtain a magnetic recording medium which excels in the surface lubricating properties and the durability, by coating with heat treatment the magnetic coating material containing a specific amount of paraffin and a proper amount of peroxide to the solid component of the magnetic powder, the binder or the like.
CONSTITUTION: The magnetic coating material, composed by adding the 5W15wt% paraffin (preferably the melting point of 50°C or less and the solid state at room temperature) plus the organic peroxide of a proper amount to the solid component of the magnetic powder, the synthetic resin for binder and the like is coated on the Al disk type supporter. Then the heat treatment is given about 15min and at about 175°C and then about 30min and at about 230°C respectively, and as a result the coated film is cured. In that case, the paraffin is crosslinked. After this, the coated film is polished up to the prescribed thickness. Thus the paraffin decomposition is reduced to obtain a magnetic recording medium excelling in the durability and the surface lubricating properties.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7557879A JPS563431A (en) | 1979-06-18 | 1979-06-18 | Magnetic recording medium and its manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7557879A JPS563431A (en) | 1979-06-18 | 1979-06-18 | Magnetic recording medium and its manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS563431A true JPS563431A (en) | 1981-01-14 |
Family
ID=13580207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7557879A Pending JPS563431A (en) | 1979-06-18 | 1979-06-18 | Magnetic recording medium and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS563431A (en) |
-
1979
- 1979-06-18 JP JP7557879A patent/JPS563431A/en active Pending
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