JPS5674824A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5674824A JPS5674824A JP15109779A JP15109779A JPS5674824A JP S5674824 A JPS5674824 A JP S5674824A JP 15109779 A JP15109779 A JP 15109779A JP 15109779 A JP15109779 A JP 15109779A JP S5674824 A JPS5674824 A JP S5674824A
- Authority
- JP
- Japan
- Prior art keywords
- metal base
- sulfonic acid
- magnetic layer
- isocyanate compound
- acid metal
- 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
Abstract
PURPOSE: To increase not only the surface smoothness but the adhesive performance to the substrate for the magnetic layer, by using the copolymerized polyester containing the sulfonic acid metal base, urethane prepolymer and trifunctional low molecular weight isocyanate compound in combination as the magnetic layer binder.
CONSTITUTION: The magnetic recording medium uses the following material for the magnetic layer binder: the copolymerized polyester resin containing the sulfonic acid metal base, i.e., the resin which is obtained by giving the polymerization of the component containing the sulfonic acid metal base such as the 5-sodium sulfo-isophthalic acid or the like into the polyester resin; the urethane prepolymer; and the trifunctional low molecular weight isocyanate compound each. This isocyanate compound contains the trifunctional isocyanate group which is usually obtained through a reaction between the 1mol triol and the 3mol diisocyanate.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15109779A JPS5674824A (en) | 1979-11-20 | 1979-11-20 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15109779A JPS5674824A (en) | 1979-11-20 | 1979-11-20 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5674824A true JPS5674824A (en) | 1981-06-20 |
Family
ID=15511263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15109779A Pending JPS5674824A (en) | 1979-11-20 | 1979-11-20 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5674824A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5841436A (en) * | 1981-09-03 | 1983-03-10 | Tdk Corp | Magnetic recording medium |
WO1983001528A1 (en) * | 1981-10-15 | 1983-04-28 | Nakajima, Kaoru | Magnetic recording medium |
JPS595424A (en) * | 1982-07-01 | 1984-01-12 | Sony Corp | Magnetic recording medium |
JPS61180927A (en) * | 1985-02-06 | 1986-08-13 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
-
1979
- 1979-11-20 JP JP15109779A patent/JPS5674824A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5841436A (en) * | 1981-09-03 | 1983-03-10 | Tdk Corp | Magnetic recording medium |
WO1983001528A1 (en) * | 1981-10-15 | 1983-04-28 | Nakajima, Kaoru | Magnetic recording medium |
JPS595424A (en) * | 1982-07-01 | 1984-01-12 | Sony Corp | Magnetic recording medium |
JPH0159646B2 (en) * | 1982-07-01 | 1989-12-19 | Sony Corp | |
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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