JPS551643A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS551643A JPS551643A JP7437278A JP7437278A JPS551643A JP S551643 A JPS551643 A JP S551643A JP 7437278 A JP7437278 A JP 7437278A JP 7437278 A JP7437278 A JP 7437278A JP S551643 A JPS551643 A JP S551643A
- Authority
- JP
- Japan
- Prior art keywords
- binder
- base
- magnetic layer
- resin
- preferrably
- 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
- 229920005989 resin Polymers 0.000 abstract 4
- 239000011347 resin Substances 0.000 abstract 4
- 239000011230 binding agent Substances 0.000 abstract 3
- 239000004760 aramid Substances 0.000 abstract 2
- 229920003235 aromatic polyamide Polymers 0.000 abstract 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000012948 isocyanate Substances 0.000 abstract 1
- -1 isocyanate compound Chemical class 0.000 abstract 1
- 239000006247 magnetic powder Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 abstract 1
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To enable to form suitable magnetic layer having excellent dispersibility of magnetic powder and bondingness of base and further excessive mechanical strength, by taking the material for the base as aromatic polyamide system resin and taking the binder for the magnetic layer as specific resin.
CONSTITUTION: On the base preferrably about 3μ thick consisting of aromatic polyamide system resin, the magnetic layer is placed, which takes polyvinyl butyral resin, urethane prepolymer of 5 to 50 wt%, preferrably 10 to 30 wt% to the total amount, and low molecular weight and more functional isocyanate compound of 1 to 30 wt%, favorably 2 to 20 wt% to the binder entire components as the binder. Thus, even if the total thickness of magnetic recording media is thin, the mechanical strength can sufficiently be held and the recording and reproducing time can be extended.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7437278A JPS551643A (en) | 1978-06-20 | 1978-06-20 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7437278A JPS551643A (en) | 1978-06-20 | 1978-06-20 | Magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS551643A true JPS551643A (en) | 1980-01-08 |
Family
ID=13545261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7437278A Pending JPS551643A (en) | 1978-06-20 | 1978-06-20 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS551643A (en) |
-
1978
- 1978-06-20 JP JP7437278A patent/JPS551643A/en active Pending
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