JPS55142420A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS55142420A JPS55142420A JP5042279A JP5042279A JPS55142420A JP S55142420 A JPS55142420 A JP S55142420A JP 5042279 A JP5042279 A JP 5042279A JP 5042279 A JP5042279 A JP 5042279A JP S55142420 A JPS55142420 A JP S55142420A
- Authority
- JP
- Japan
- Prior art keywords
- protecting layer
- layer
- magnetic recording
- magnetic
- polyisocyanate
- 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
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To improve the durability of magnetic recording media, by providing the protecting layer consisting of vinyl chloride-polypropionic acid copolymer, and polyisocyanate of low molecular weight on the surface of magnetic substance layer.
CONSTITUTION: On the mold release layer 2 formed on the film 1 such as polyester, the protecting layer paint mixing a given amount of vinyl chloride-polypropionic acid copolymer and polyisocyanate of low molecular weight is coated and the protecting layer 3 is formed with drying. On the protecting layer 3, the protecting layer 4 is formed to constitute the copying magnetic sheet, the magnetic substance layer 4 is laminated on the board 5 such as polyvinyl chloride so that it is in contact with the board 3, and after pressing, the film 1 is peeled. Thus, the protecting layer 3 having a suitable degree of elasticity is formed and the magnetic recording media durable for a long time can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5042279A JPS55142420A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5042279A JPS55142420A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55142420A true JPS55142420A (en) | 1980-11-07 |
Family
ID=12858421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5042279A Pending JPS55142420A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55142420A (en) |
-
1979
- 1979-04-23 JP JP5042279A patent/JPS55142420A/en active Pending
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