JPS5532254A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5532254A JPS5532254A JP10410678A JP10410678A JPS5532254A JP S5532254 A JPS5532254 A JP S5532254A JP 10410678 A JP10410678 A JP 10410678A JP 10410678 A JP10410678 A JP 10410678A JP S5532254 A JPS5532254 A JP S5532254A
- Authority
- JP
- Japan
- Prior art keywords
- less
- magnetic powder
- soap
- expressed
- ammonium chloride
- 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 make it possible to prevent magnetic coating strentgh from deteriorating and also to eliminate sticking to a head by combinationally using a specific binder and magnetic powder whose surface is coated with speficia 4th-class ammonium chloride and soap.
CONSTITUTION: As a charging inhibitor, 4th-class ammonium chloride expressed I (R is any hydrocarbon radical of alkyl, aryl, etc., containing not less than one amide group; R1 to R3 are any hydrocarbon groups; X is anion of Cl, Br, I, SO4, PO4, etc.) and soap of less 50 weight% expressed by II (R is alkyl constituting fatty acid of C4W18; M is amine of less than C11 with only a C chaine in hydrophobic group) are dissolved in an adequate solvent. The solution is stuck to the magnetic powder and then dried by heating. A magnetic coating material obtained by mixing this magnetic powder in the binder containing vinyl chloride-vinyl acetate copolymer alkalified by nitrile butadiene rubber is applied onto a base.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10410678A JPS5532254A (en) | 1978-08-25 | 1978-08-25 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10410678A JPS5532254A (en) | 1978-08-25 | 1978-08-25 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5532254A true JPS5532254A (en) | 1980-03-06 |
Family
ID=14371863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10410678A Pending JPS5532254A (en) | 1978-08-25 | 1978-08-25 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5532254A (en) |
-
1978
- 1978-08-25 JP JP10410678A patent/JPS5532254A/en active Pending
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