JPS54103005A - Magnetic disc coating composite - Google Patents
Magnetic disc coating compositeInfo
- Publication number
- JPS54103005A JPS54103005A JP949378A JP949378A JPS54103005A JP S54103005 A JPS54103005 A JP S54103005A JP 949378 A JP949378 A JP 949378A JP 949378 A JP949378 A JP 949378A JP S54103005 A JPS54103005 A JP S54103005A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic disc
- coating
- powders
- zro
- 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
Abstract
PURPOSE: To improve the coating strength, surface smoothness, contact, solvent resistivity, heat floating property and head attractivity for the requirement of a high density recording medium by mixing fine carbon particles in the magnetic coating including powders of ZrO2.
CONSTITUTION: In a magnetic disc for use in a contact-start-stop system, less than 20 wt.%, preferably, 1 to 10 wt.% of carbon particles having a mean diameter of less than 0.4 microns, preferably, 0.01 to 0.4 microns are mixed with a magnetic coating of the type, in which magnetic powders of gamma-Fe2O3 or Fe3O4 and ZrO2 are dispersed in a binder such as a thermoset resin. The above-specified wt. percentages are for the weight of the magnetic powders contained in the magnetic coating.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53009493A JPS585455B2 (en) | 1978-01-31 | 1978-01-31 | Magnetic disk coating composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53009493A JPS585455B2 (en) | 1978-01-31 | 1978-01-31 | Magnetic disk coating composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54103005A true JPS54103005A (en) | 1979-08-14 |
JPS585455B2 JPS585455B2 (en) | 1983-01-31 |
Family
ID=11721751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53009493A Expired JPS585455B2 (en) | 1978-01-31 | 1978-01-31 | Magnetic disk coating composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS585455B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5680826A (en) * | 1979-11-30 | 1981-07-02 | Sony Corp | Magnetic recording medium |
CN105418945A (en) * | 2015-12-23 | 2016-03-23 | 深圳市亚泰光电技术有限公司 | High-temperature curing method for composite material |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5218561A (en) * | 1975-08-01 | 1977-02-12 | Fujitsu Ltd | Variable spring constant system |
JPS5245309A (en) * | 1975-10-07 | 1977-04-09 | Victor Co Of Japan Ltd | Media for magnetic recording |
-
1978
- 1978-01-31 JP JP53009493A patent/JPS585455B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5218561A (en) * | 1975-08-01 | 1977-02-12 | Fujitsu Ltd | Variable spring constant system |
JPS5245309A (en) * | 1975-10-07 | 1977-04-09 | Victor Co Of Japan Ltd | Media for magnetic recording |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5680826A (en) * | 1979-11-30 | 1981-07-02 | Sony Corp | Magnetic recording medium |
JPH0132573B2 (en) * | 1979-11-30 | 1989-07-06 | Sony Corp | |
CN105418945A (en) * | 2015-12-23 | 2016-03-23 | 深圳市亚泰光电技术有限公司 | High-temperature curing method for composite material |
Also Published As
Publication number | Publication date |
---|---|
JPS585455B2 (en) | 1983-01-31 |
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