JPS54123923A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS54123923A JPS54123923A JP3137778A JP3137778A JPS54123923A JP S54123923 A JPS54123923 A JP S54123923A JP 3137778 A JP3137778 A JP 3137778A JP 3137778 A JP3137778 A JP 3137778A JP S54123923 A JPS54123923 A JP S54123923A
- Authority
- JP
- Japan
- Prior art keywords
- epoxy
- recording medium
- composition
- ultraviolet rays
- front side
- 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
- Lubricants (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To form magnetic recording medium of superior running characteristic by providing an ultraviolet ray setting epoxy resin layer containing lubricants on the back side of a film substrate formed with a magnetic layer on the front side.
CONSTITUTION: The mixed varnish of epoxy prepolymer and epoxy monomer and a photo setting catalyst (aromatic diazonium salt of halogenide complex producing Lewis acid through radiation of ultraviolet rays) solution are mixed, to which fatty acid ester, quaternary ammonium salt, lubricants such as carbon powder or the like are added to ratios of about 0.01 to 50% based on the epoxy composition, whereby the liquid form composition is obtained. Next, the above liquid form composition is coated on the back side of the film substrate formed with a magnetic layer on the front side, and ultraviolet rays are radiated thereto to allow the resin to set, thereby causing the epoxy resin layers of about 0.1 to 1μ in film thickness to be formed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3137778A JPS54123923A (en) | 1978-03-17 | 1978-03-17 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3137778A JPS54123923A (en) | 1978-03-17 | 1978-03-17 | Magnetic recording medium |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54123923A true JPS54123923A (en) | 1979-09-26 |
JPS5749966B2 JPS5749966B2 (en) | 1982-10-25 |
Family
ID=12329552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3137778A Granted JPS54123923A (en) | 1978-03-17 | 1978-03-17 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54123923A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5737720A (en) * | 1980-08-18 | 1982-03-02 | Matsushita Electric Ind Co Ltd | Magnetic recording medium and its manufacture |
JPS57150136A (en) * | 1981-03-09 | 1982-09-16 | Fuji Photo Film Co Ltd | Magnetic recording medium and its manufacture |
JPS57162123A (en) * | 1981-03-30 | 1982-10-05 | Teijin Ltd | Magnetic recording medium |
JPS57169929A (en) * | 1981-04-13 | 1982-10-19 | Tdk Corp | Magnetic recording medium and its manufacture |
JPS57195321A (en) * | 1981-05-08 | 1982-12-01 | Teijin Ltd | Metallic thin film magnetic recording medium |
JPS57200937A (en) * | 1981-06-05 | 1982-12-09 | Tdk Corp | Magnetic recording medium |
JPS57203725U (en) * | 1981-06-23 | 1982-12-25 | ||
JPS5814319A (en) * | 1981-07-20 | 1983-01-27 | Teijin Ltd | Vertically magnetized recording medium |
JPS5841419A (en) * | 1981-09-03 | 1983-03-10 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS61175921A (en) * | 1985-01-29 | 1986-08-07 | Mitsubishi Electric Corp | Back coating material for magnetic recording medium |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6073985U (en) * | 1983-10-27 | 1985-05-24 | 三菱重工業株式会社 | coupled valve |
-
1978
- 1978-03-17 JP JP3137778A patent/JPS54123923A/en active Granted
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5737720A (en) * | 1980-08-18 | 1982-03-02 | Matsushita Electric Ind Co Ltd | Magnetic recording medium and its manufacture |
JPS57150136A (en) * | 1981-03-09 | 1982-09-16 | Fuji Photo Film Co Ltd | Magnetic recording medium and its manufacture |
JPH0152814B2 (en) * | 1981-03-30 | 1989-11-10 | Teijin Ltd | |
JPS57162123A (en) * | 1981-03-30 | 1982-10-05 | Teijin Ltd | Magnetic recording medium |
JPS57169929A (en) * | 1981-04-13 | 1982-10-19 | Tdk Corp | Magnetic recording medium and its manufacture |
JPH0563842B2 (en) * | 1981-04-13 | 1993-09-13 | Tdk Electronics Co Ltd | |
JPS57195321A (en) * | 1981-05-08 | 1982-12-01 | Teijin Ltd | Metallic thin film magnetic recording medium |
JPH0152815B2 (en) * | 1981-05-08 | 1989-11-10 | Teijin Ltd | |
US4670340A (en) * | 1981-06-05 | 1987-06-02 | Tdk Corporation | Magnetic recording medium and method |
JPH0445887B2 (en) * | 1981-06-05 | 1992-07-28 | Tdk Electronics Co Ltd | |
JPS57200937A (en) * | 1981-06-05 | 1982-12-09 | Tdk Corp | Magnetic recording medium |
JPS6332596Y2 (en) * | 1981-06-23 | 1988-08-31 | ||
JPS57203725U (en) * | 1981-06-23 | 1982-12-25 | ||
JPS5814319A (en) * | 1981-07-20 | 1983-01-27 | Teijin Ltd | Vertically magnetized recording medium |
JPH0152816B2 (en) * | 1981-07-20 | 1989-11-10 | Teijin Ltd | |
JPS5841419A (en) * | 1981-09-03 | 1983-03-10 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS61175921A (en) * | 1985-01-29 | 1986-08-07 | Mitsubishi Electric Corp | Back coating material for magnetic recording medium |
Also Published As
Publication number | Publication date |
---|---|
JPS5749966B2 (en) | 1982-10-25 |
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