JPS5474403A - Coating composite for magnetic disc - Google Patents
Coating composite for magnetic discInfo
- Publication number
- JPS5474403A JPS5474403A JP14111377A JP14111377A JPS5474403A JP S5474403 A JPS5474403 A JP S5474403A JP 14111377 A JP14111377 A JP 14111377A JP 14111377 A JP14111377 A JP 14111377A JP S5474403 A JPS5474403 A JP S5474403A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- magnetic disc
- microns
- proof
- carbon particles
- 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 produce a coating film, which is strong in wear-proof or shock-proof, which is excellent in workability and in head floating property and which can prevent the head from being damaged, by blending and adding fine spherical carbon particles.
CONSTITUTION: Less than 10 wt%, preferably, 1 to 5 wt% of carbon particles having a mean diameter of less than 0.2 microns, preferably, 0.01 to 0.2 microns are mixed with magnetic powders such as γ-Fe2O3 which is contained in a coating composite of a magnetic disc. Thus, a coating having an excellent bit error property can be produced. The coating finds its proper application in a disc medium because it has a small frictional coefficient and an excellent surface workability. The surface roughness obtainable is 0.010Ra by a tape polish.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52141113A JPS5831654B2 (en) | 1977-11-26 | 1977-11-26 | Magnetic disk coating composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52141113A JPS5831654B2 (en) | 1977-11-26 | 1977-11-26 | Magnetic disk coating composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5474403A true JPS5474403A (en) | 1979-06-14 |
JPS5831654B2 JPS5831654B2 (en) | 1983-07-07 |
Family
ID=15284455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52141113A Expired JPS5831654B2 (en) | 1977-11-26 | 1977-11-26 | Magnetic disk coating composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5831654B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101849747B1 (en) * | 2016-07-20 | 2018-05-31 | 주식회사 엘지화학 | Novel hetero-cyclic compound and organic light emitting device comprising the same |
KR101982792B1 (en) | 2017-07-20 | 2019-05-27 | 주식회사 엘지화학 | Novel hetero-cyclic compound and organic light emitting device comprising the same |
CN112166112A (en) | 2018-05-30 | 2021-01-01 | 默克专利有限公司 | Composition for organic electronic device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5062604A (en) * | 1973-10-04 | 1975-05-28 | ||
JPS5114007A (en) * | 1974-07-25 | 1976-02-04 | Fuji Photo Film Co Ltd | JIKISHIITO |
JPS5253406A (en) * | 1975-10-28 | 1977-04-30 | Fuji Photo Film Co Ltd | Magnetic sheet |
JPS5297709A (en) * | 1977-02-18 | 1977-08-16 | Hitachi Maxell | Magnetic recording material |
-
1977
- 1977-11-26 JP JP52141113A patent/JPS5831654B2/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5062604A (en) * | 1973-10-04 | 1975-05-28 | ||
JPS5114007A (en) * | 1974-07-25 | 1976-02-04 | Fuji Photo Film Co Ltd | JIKISHIITO |
JPS5253406A (en) * | 1975-10-28 | 1977-04-30 | Fuji Photo Film Co Ltd | Magnetic sheet |
JPS5297709A (en) * | 1977-02-18 | 1977-08-16 | Hitachi Maxell | Magnetic recording material |
Also Published As
Publication number | Publication date |
---|---|
JPS5831654B2 (en) | 1983-07-07 |
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