JPS5613522A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5613522A JPS5613522A JP8747879A JP8747879A JPS5613522A JP S5613522 A JPS5613522 A JP S5613522A JP 8747879 A JP8747879 A JP 8747879A JP 8747879 A JP8747879 A JP 8747879A JP S5613522 A JPS5613522 A JP S5613522A
- Authority
- JP
- Japan
- Prior art keywords
- property
- magnetic recording
- magnetic
- vinyl
- recording medium
- 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
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To obtain a magnetic recording medium having dispersibility and surface property improved by forming a magnetic layer by mixing magnetic powder in a binder that contains -SO3Na group containing polyester resin, a copolymer of vinyl chrolide and vinyl acetate and thermoplastic polyurethane and then by performing cross-linking with isocyanate.
CONSTITUTION: Ferromagnetic powder is dispersed in a binder, containing a resin introduced -SO3Na group as a side chain for polyester resin, a copolymer of vinyl chrolide and vinyl acetate and thermoplastic polyurethane prepolymer. A mixture of this magnetic coating and a cross-linking agent of an isocyanate compound is applied on a polyester film, etc., and set by drying to form a magnetic recording tape. Consequently, the magnetic recording tape can be obtained which has improved durability, friction property, physical property such as still property, electromagnetic converting property in addition to dispersibility and surface property and is used for video recording.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8747879A JPS5613522A (en) | 1979-07-12 | 1979-07-12 | Magnetic recording medium |
GB8022605A GB2054622B (en) | 1979-07-12 | 1980-07-10 | Magnetic recording medium |
DE19803026357 DE3026357A1 (en) | 1979-07-12 | 1980-07-11 | MAGNETIC RECORDING MEDIUM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8747879A JPS5613522A (en) | 1979-07-12 | 1979-07-12 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5613522A true JPS5613522A (en) | 1981-02-09 |
Family
ID=13916026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8747879A Pending JPS5613522A (en) | 1979-07-12 | 1979-07-12 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5613522A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS598127A (en) * | 1982-07-05 | 1984-01-17 | Sony Corp | Magnetic recording medium |
JPS61126903A (en) * | 1984-11-24 | 1986-06-14 | Kawasaki Steel Corp | Method and device for rolling plate material |
JPS61180927A (en) * | 1985-02-06 | 1986-08-13 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
-
1979
- 1979-07-12 JP JP8747879A patent/JPS5613522A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS598127A (en) * | 1982-07-05 | 1984-01-17 | Sony Corp | Magnetic recording medium |
JPH0379764B2 (en) * | 1982-07-05 | 1991-12-19 | Sonii Kk | |
JPS61126903A (en) * | 1984-11-24 | 1986-06-14 | Kawasaki Steel Corp | Method and device for rolling plate material |
JPS61180927A (en) * | 1985-02-06 | 1986-08-13 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
JPH0535483B2 (en) * | 1985-02-06 | 1993-05-26 | Matsushita Electric Ind Co Ltd |
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