JPS55142416A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS55142416A JPS55142416A JP5041879A JP5041879A JPS55142416A JP S55142416 A JPS55142416 A JP S55142416A JP 5041879 A JP5041879 A JP 5041879A JP 5041879 A JP5041879 A JP 5041879A JP S55142416 A JPS55142416 A JP S55142416A
- Authority
- JP
- Japan
- Prior art keywords
- protecting layer
- magnetic
- layer
- magnetic recording
- magnetic substance
- 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
- 239000000126 substance Substances 0.000 abstract 3
- 239000005062 Polybutadiene Substances 0.000 abstract 2
- 229920001577 copolymer Polymers 0.000 abstract 2
- 229920002857 polybutadiene Polymers 0.000 abstract 2
- 229920001228 polyisocyanate Polymers 0.000 abstract 2
- 239000005056 polyisocyanate Substances 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To improve the durability of magnetic recording media, by providing the protecting layer consisting of vinyl chloride-vinylpropionic acid copolymer, nitril- butadiene rubber and polyisocyanate of low molecular weight on the surface of magnetic substance.
CONSTITUTION: On the mold release layer 2 formed on the film 1 such as polyester, the protecting layer paint mixing a certain amount of vinyl chloride-vinylpropionic acid copolymer, nitril-butadiene rubber and polyisocyanate of low molecular weight is coated and the protecting layer 3 is formed with drying. The magnetic substance layer 4 is formed on the protecting layer 4 to constitute the copying magnetic sheet, the magnetic substance layer 4 is laminated on the board 5 of polyvinyl chloride so that it is in contact with the board 5, and after pressing, the film 1 is peeled. Thus, suitable elasticity is given to the protecting layer 3, the shock from the magnetic head is mitigated, 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 |
|---|---|---|---|
| JP5041879A JPS55142416A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5041879A JPS55142416A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55142416A true JPS55142416A (en) | 1980-11-07 |
Family
ID=12858309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5041879A Pending JPS55142416A (en) | 1979-04-23 | 1979-04-23 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55142416A (en) |
-
1979
- 1979-04-23 JP JP5041879A patent/JPS55142416A/en active Pending
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