JPS55147570A - Magnetic paint - Google Patents
Magnetic paintInfo
- Publication number
- JPS55147570A JPS55147570A JP5475879A JP5475879A JPS55147570A JP S55147570 A JPS55147570 A JP S55147570A JP 5475879 A JP5475879 A JP 5475879A JP 5475879 A JP5475879 A JP 5475879A JP S55147570 A JPS55147570 A JP S55147570A
- Authority
- JP
- Japan
- Prior art keywords
- mixt
- added
- contg
- binder
- solvent
- 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 provide magnetic paint which excels in coercive force, max. magnetic flux density, angular ratio and gelation-preventing properties, by a method wherein a phosphate, ester is added before or after necessary additives such as a binder are added to a mixt. of a solvent and a magnetic material.
CONSTITUTION: Additives such as a binder (e.g, vinyl alcohol-contg. vinyl chloride- vinyl acetate copolymer), a hardener (e.g. polyisocyanate) etc. are added to a mixt. of powder of magnetic material such as Co-contg. r-Fe2O3 or Co-contg. Fe3O4 and a solvent such as methyl ethyl ketone, toluene, or methyl isobutyl ketone. Then a phosphate ester such as polyoxyethylenealkylallylether mono- or diester of phosphoric acid is added to the mixt. Alternatively, the phosphate ester is dispersed in the mixt. of the solvent and the magnetic material, and then the additives such as the binder and the hardener are added to the mixt. to obtain the desired magnetic paint.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5475879A JPS55147570A (en) | 1979-05-07 | 1979-05-07 | Magnetic paint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5475879A JPS55147570A (en) | 1979-05-07 | 1979-05-07 | Magnetic paint |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55147570A true JPS55147570A (en) | 1980-11-17 |
JPS6352069B2 JPS6352069B2 (en) | 1988-10-17 |
Family
ID=12979663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5475879A Granted JPS55147570A (en) | 1979-05-07 | 1979-05-07 | Magnetic paint |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55147570A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5740743A (en) * | 1980-08-23 | 1982-03-06 | Sony Corp | Magnetic recording medium |
JPS5792422A (en) * | 1980-11-25 | 1982-06-09 | Sony Corp | Magnetic recording medium |
JPS62159336A (en) * | 1986-01-07 | 1987-07-15 | Konishiroku Photo Ind Co Ltd | Magnetic recording medium |
CN104130609A (en) * | 2014-08-20 | 2014-11-05 | 姜云华 | Magnetic coating |
-
1979
- 1979-05-07 JP JP5475879A patent/JPS55147570A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5740743A (en) * | 1980-08-23 | 1982-03-06 | Sony Corp | Magnetic recording medium |
JPS6346489B2 (en) * | 1980-08-23 | 1988-09-16 | Sony Corp | |
JPS5792422A (en) * | 1980-11-25 | 1982-06-09 | Sony Corp | Magnetic recording medium |
JPS6346886B2 (en) * | 1980-11-25 | 1988-09-19 | Sony Corp | |
JPS62159336A (en) * | 1986-01-07 | 1987-07-15 | Konishiroku Photo Ind Co Ltd | Magnetic recording medium |
CN104130609A (en) * | 2014-08-20 | 2014-11-05 | 姜云华 | Magnetic coating |
Also Published As
Publication number | Publication date |
---|---|
JPS6352069B2 (en) | 1988-10-17 |
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