JPS5436382A - Polyester film - Google Patents
Polyester filmInfo
- Publication number
- JPS5436382A JPS5436382A JP10105377A JP10105377A JPS5436382A JP S5436382 A JPS5436382 A JP S5436382A JP 10105377 A JP10105377 A JP 10105377A JP 10105377 A JP10105377 A JP 10105377A JP S5436382 A JPS5436382 A JP S5436382A
- Authority
- JP
- Japan
- Prior art keywords
- polyester film
- film
- bleeding
- density
- longitudinal
- 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
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE: To provide a polyethylene terephthalate film useful as a magnetic tape base, having specific ranges of density, longitudinal and transversal refractive indices, and intrinsic viscosity, and free from bleeding of low molecular weight substance to the surface of the film.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10105377A JPS5436382A (en) | 1977-08-25 | 1977-08-25 | Polyester film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10105377A JPS5436382A (en) | 1977-08-25 | 1977-08-25 | Polyester film |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5436382A true JPS5436382A (en) | 1979-03-17 |
JPS6227980B2 JPS6227980B2 (en) | 1987-06-17 |
Family
ID=14290367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10105377A Granted JPS5436382A (en) | 1977-08-25 | 1977-08-25 | Polyester film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5436382A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159619A (en) * | 1981-03-30 | 1982-10-01 | Teijin Ltd | Polyester film for magnetic recording tape |
JPS57162126A (en) * | 1981-03-30 | 1982-10-05 | Teijin Ltd | Polyester film for magnetic recording tape |
JPS61211014A (en) * | 1985-03-05 | 1986-09-19 | ヘキスト・アクチエンゲゼルシヤフト | Biaxial oriented heat-set film having improved abrasion resistance consisting of thermoplastic polyester |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01138079U (en) * | 1988-03-16 | 1989-09-21 |
-
1977
- 1977-08-25 JP JP10105377A patent/JPS5436382A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159619A (en) * | 1981-03-30 | 1982-10-01 | Teijin Ltd | Polyester film for magnetic recording tape |
JPS57162126A (en) * | 1981-03-30 | 1982-10-05 | Teijin Ltd | Polyester film for magnetic recording tape |
JPS61211014A (en) * | 1985-03-05 | 1986-09-19 | ヘキスト・アクチエンゲゼルシヤフト | Biaxial oriented heat-set film having improved abrasion resistance consisting of thermoplastic polyester |
Also Published As
Publication number | Publication date |
---|---|
JPS6227980B2 (en) | 1987-06-17 |
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