JPS5674825A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5674825A JPS5674825A JP15109879A JP15109879A JPS5674825A JP S5674825 A JPS5674825 A JP S5674825A JP 15109879 A JP15109879 A JP 15109879A JP 15109879 A JP15109879 A JP 15109879A JP S5674825 A JPS5674825 A JP S5674825A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- isocyanate compound
- recording medium
- sulphonate group
- copolymerized polyester
- 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 increase not only the durability but the solvent-resistance performance of a magnetic recording medium, by using a vinyliden chloride-acrylonitrile copolymer, a copolymerized polyester containing metallic sulphonate group and an isocyanate compound each as the magnetic layer binder.
CONSTITUTION: The magnetic recording medium contains the following materials as the binder components of the magnetic recording layer: a vinylidene chloride- acrylonitrile copolymer, a copolymerized polyester resin containing metllic sulphonate group, and an isocyanate compound each. The copolymerized polyester containing metallic sulphonate group is obtained by copolymerizing the component containing the metallic sulphonate group such as 5-sodium sulfo-isophthalate or the like into the polyester resin. As the isocyanate compound, is used the straight chain type urethane prepolymer having free isocyanate group at both terminals, or a trifunctional low mol. weight isocyanate compound which is obtained from 1mol toluol and 3mol diisocyanate.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15109879A JPS5674825A (en) | 1979-11-20 | 1979-11-20 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15109879A JPS5674825A (en) | 1979-11-20 | 1979-11-20 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5674825A true JPS5674825A (en) | 1981-06-20 |
Family
ID=15511286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15109879A Pending JPS5674825A (en) | 1979-11-20 | 1979-11-20 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5674825A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5841436A (en) * | 1981-09-03 | 1983-03-10 | Tdk Corp | Magnetic recording medium |
JPS58108032A (en) * | 1981-12-22 | 1983-06-28 | Fuji Photo Film Co Ltd | Magnetic recording medium |
-
1979
- 1979-11-20 JP JP15109879A patent/JPS5674825A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5841436A (en) * | 1981-09-03 | 1983-03-10 | Tdk Corp | Magnetic recording medium |
JPS58108032A (en) * | 1981-12-22 | 1983-06-28 | Fuji Photo Film Co Ltd | Magnetic recording medium |
JPH059843B2 (en) * | 1981-12-22 | 1993-02-08 | Fuji Photo Film Co Ltd |
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