JPS6450226A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS6450226A JPS6450226A JP20754387A JP20754387A JPS6450226A JP S6450226 A JPS6450226 A JP S6450226A JP 20754387 A JP20754387 A JP 20754387A JP 20754387 A JP20754387 A JP 20754387A JP S6450226 A JPS6450226 A JP S6450226A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- magnetic
- binder
- magnetic recording
- magnetic powder
- 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)
- Paints Or Removers (AREA)
Abstract
PURPOSE:To improve the durability, magnetic characteristics and electromagnetic conversion characteristics of a magnetic recording medium by using a specific copolymer as a binder for constituting a magnetic layer. CONSTITUTION:The vinylidene chloride copolymer having a -COOM group (where M denotes hydrogen or alkali metal) and quaternary ammonium salt in the molecule are incorporated into the binder. The affinity to magnetic powder is improved and even the magnetic powder formed to superfine particles and the magnetic powder having a large quantity of magnetization are satisfactorily dispersed by using the vinylidene chloride copolymer having the -COOM group which is a polar group and the quaternary ammonium salt in the molecule as the binder. The durability and surface characteristic of the magnetic recording medium are thereby improved and the recording medium having the excellent electromagnetic conversion characteristics is obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20754387A JPS6450226A (en) | 1987-08-21 | 1987-08-21 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20754387A JPS6450226A (en) | 1987-08-21 | 1987-08-21 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6450226A true JPS6450226A (en) | 1989-02-27 |
Family
ID=16541469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20754387A Pending JPS6450226A (en) | 1987-08-21 | 1987-08-21 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6450226A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007148786A1 (en) | 2006-06-23 | 2007-12-27 | Takeda Pharmaceutical Company Limited | Stabilized solid preparation |
-
1987
- 1987-08-21 JP JP20754387A patent/JPS6450226A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007148786A1 (en) | 2006-06-23 | 2007-12-27 | Takeda Pharmaceutical Company Limited | Stabilized solid preparation |
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