JPS54141606A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS54141606A JPS54141606A JP4962978A JP4962978A JPS54141606A JP S54141606 A JPS54141606 A JP S54141606A JP 4962978 A JP4962978 A JP 4962978A JP 4962978 A JP4962978 A JP 4962978A JP S54141606 A JPS54141606 A JP S54141606A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- magnetic recording
- magnetic coating
- magnetic
- surfactant
- 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 obviate degrading of orientation characteristic, surface characteristic and other properties even when the magnetic coating using curable binders is left standing for a long time by using phosphate of higher alcohol as the surfactant of the magnetic coating.
CONSTITUTION: Magnetic powder, curable binder and its hardener and the phosphate of higher alcohol such as the one of formulas I thru III (R is alkyl, alkyl phenyl; n is addition molar number of ethylene oxide) are mixed. The resultant magnetic coating is coated on a substrate such as polyester base, whereby the magnetic recording medium is formed. As a result, the orientation characteristic is better than that of the one using R-O-(C2H4O)nH as the surfactant.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4962978A JPS54141606A (en) | 1978-04-26 | 1978-04-26 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4962978A JPS54141606A (en) | 1978-04-26 | 1978-04-26 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54141606A true JPS54141606A (en) | 1979-11-05 |
Family
ID=12836506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4962978A Pending JPS54141606A (en) | 1978-04-26 | 1978-04-26 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54141606A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4540627A (en) * | 1983-08-19 | 1985-09-10 | Kabushiki Kaisha Toshiba | Magnetic recording medium |
JPS61250829A (en) * | 1985-04-30 | 1986-11-07 | Konishiroku Photo Ind Co Ltd | Magnetic recording medium |
US4732812A (en) * | 1986-06-23 | 1988-03-22 | Minnesota Mining And Manufacturing Company | Magnetic recording medium |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040103A (en) * | 1973-08-16 | 1975-04-12 | ||
JPS5315803A (en) * | 1976-07-28 | 1978-02-14 | Fuji Photo Film Co Ltd | Magnetic recording material |
-
1978
- 1978-04-26 JP JP4962978A patent/JPS54141606A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5040103A (en) * | 1973-08-16 | 1975-04-12 | ||
JPS5315803A (en) * | 1976-07-28 | 1978-02-14 | Fuji Photo Film Co Ltd | Magnetic recording material |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4540627A (en) * | 1983-08-19 | 1985-09-10 | Kabushiki Kaisha Toshiba | Magnetic recording medium |
JPS61250829A (en) * | 1985-04-30 | 1986-11-07 | Konishiroku Photo Ind Co Ltd | Magnetic recording medium |
US4732812A (en) * | 1986-06-23 | 1988-03-22 | Minnesota Mining And Manufacturing Company | Magnetic recording medium |
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