JPS551641A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS551641A JPS551641A JP7437078A JP7437078A JPS551641A JP S551641 A JPS551641 A JP S551641A JP 7437078 A JP7437078 A JP 7437078A JP 7437078 A JP7437078 A JP 7437078A JP S551641 A JPS551641 A JP S551641A
- Authority
- JP
- Japan
- Prior art keywords
- preferrably
- base
- magnetic layer
- binder
- resin
- 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
- 229920006311 Urethane elastomer Polymers 0.000 abstract 1
- 239000000470 constituent Substances 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
- 239000004014 plasticizer 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, low molecular weight and more functional isocyanate compound of 1 to 30% to total, preferrably 2 to 20% wt., and urethane elastomer of 20 to 80%, preferrably 35 to 65% wt. to the entire binder constituent, high molecular plasticizer 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 |
|---|---|---|---|
| JP7437078A JPS551641A (en) | 1978-06-20 | 1978-06-20 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7437078A JPS551641A (en) | 1978-06-20 | 1978-06-20 | Magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS551641A true JPS551641A (en) | 1980-01-08 |
Family
ID=13545198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7437078A Pending JPS551641A (en) | 1978-06-20 | 1978-06-20 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS551641A (en) |
-
1978
- 1978-06-20 JP JP7437078A patent/JPS551641A/en active Pending
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