JPS54147813A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS54147813A JPS54147813A JP5551378A JP5551378A JPS54147813A JP S54147813 A JPS54147813 A JP S54147813A JP 5551378 A JP5551378 A JP 5551378A JP 5551378 A JP5551378 A JP 5551378A JP S54147813 A JPS54147813 A JP S54147813A
- Authority
- JP
- Japan
- Prior art keywords
- surface active
- magnetic
- active agent
- coating containing
- type surface
- 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.)
- Granted
Links
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To improve magnetic orientation characteristic without changing the effect of the reduction in the half-life of the charge quantity charged by using the magnetic coating containing the magnetic powder and the respectively specific binder and two kinds of surface active agents.
CONSTITUTION: The magnetic coating containing the vinyl chloride-vinyl acetate copolymer plasticized by polyurethane resins of 40wt% or under based on the total binder weight, alkyl ether type surface active agent, phosphoric acid ester type surface active agent of not more than the amount thereof and magnetic powder is coated on a substrate.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5551378A JPS5843813B2 (en) | 1978-05-12 | 1978-05-12 | magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5551378A JPS5843813B2 (en) | 1978-05-12 | 1978-05-12 | magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54147813A true JPS54147813A (en) | 1979-11-19 |
JPS5843813B2 JPS5843813B2 (en) | 1983-09-29 |
Family
ID=13000762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5551378A Expired JPS5843813B2 (en) | 1978-05-12 | 1978-05-12 | magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5843813B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4540627A (en) * | 1983-08-19 | 1985-09-10 | Kabushiki Kaisha Toshiba | Magnetic recording medium |
-
1978
- 1978-05-12 JP JP5551378A patent/JPS5843813B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4540627A (en) * | 1983-08-19 | 1985-09-10 | Kabushiki Kaisha Toshiba | Magnetic recording medium |
Also Published As
Publication number | Publication date |
---|---|
JPS5843813B2 (en) | 1983-09-29 |
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