JPS5436382A - Polyester film - Google Patents

Polyester film

Info

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
Application number
JP10105377A
Other languages
Japanese (ja)
Other versions
JPS6227980B2 (en
Inventor
Tomio Adachi
Shigeyoshi Masuda
Akihisa Ono
Masahiro Hosoi
Shiro Yokoyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Teijin Ltd filed Critical Teijin Ltd
Priority to JP10105377A priority Critical patent/JPS5436382A/en
Publication of JPS5436382A publication Critical patent/JPS5436382A/en
Publication of JPS6227980B2 publication Critical patent/JPS6227980B2/ja
Granted legal-status Critical Current

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
JP10105377A 1977-08-25 1977-08-25 Polyester film Granted JPS5436382A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01138079U (en) * 1988-03-16 1989-09-21

Cited By (3)

* Cited by examiner, † Cited by third party
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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