JPH0365378B2 - - Google Patents
Info
- Publication number
- JPH0365378B2 JPH0365378B2 JP58078692A JP7869283A JPH0365378B2 JP H0365378 B2 JPH0365378 B2 JP H0365378B2 JP 58078692 A JP58078692 A JP 58078692A JP 7869283 A JP7869283 A JP 7869283A JP H0365378 B2 JPH0365378 B2 JP H0365378B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- particles
- polyester
- average particle
- barium sulfate
- 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.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73923—Organic polymer substrates
- G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58078692A JPS59203233A (ja) | 1983-05-04 | 1983-05-04 | 磁気テ−プ用配向ポリエステルフイルム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58078692A JPS59203233A (ja) | 1983-05-04 | 1983-05-04 | 磁気テ−プ用配向ポリエステルフイルム |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59203233A JPS59203233A (ja) | 1984-11-17 |
JPH0365378B2 true JPH0365378B2 (enrdf_load_stackoverflow) | 1991-10-11 |
Family
ID=13668913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58078692A Granted JPS59203233A (ja) | 1983-05-04 | 1983-05-04 | 磁気テ−プ用配向ポリエステルフイルム |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59203233A (enrdf_load_stackoverflow) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53145860A (en) * | 1977-05-25 | 1978-12-19 | Teijin Ltd | Polyesoter film having improved transprtability |
JPS59152948A (ja) * | 1983-02-18 | 1984-08-31 | Toyobo Co Ltd | 配向ポリエステルフイルム |
-
1983
- 1983-05-04 JP JP58078692A patent/JPS59203233A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59203233A (ja) | 1984-11-17 |
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