JPS6443537A - Biaxially oriented polyester film - Google Patents

Biaxially oriented polyester film

Info

Publication number
JPS6443537A
JPS6443537A JP20140587A JP20140587A JPS6443537A JP S6443537 A JPS6443537 A JP S6443537A JP 20140587 A JP20140587 A JP 20140587A JP 20140587 A JP20140587 A JP 20140587A JP S6443537 A JPS6443537 A JP S6443537A
Authority
JP
Japan
Prior art keywords
biaxially oriented
film
density
polyester film
oriented polyester
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
JP20140587A
Other languages
Japanese (ja)
Other versions
JPH0662792B2 (en
Inventor
Yasushi Sasaki
Tadashi Okudaira
Katsuro Kuze
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.)
NIPPON MAGUFUAN KK
Nippon Magphane KK
Toyobo Co Ltd
Original Assignee
NIPPON MAGUFUAN KK
Nippon Magphane KK
Toyobo Co 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 NIPPON MAGUFUAN KK, Nippon Magphane KK, Toyobo Co Ltd filed Critical NIPPON MAGUFUAN KK
Priority to JP62201405A priority Critical patent/JPH0662792B2/en
Publication of JPS6443537A publication Critical patent/JPS6443537A/en
Publication of JPH0662792B2 publication Critical patent/JPH0662792B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To obtain the title film excellent in travelling performance, electromagnetic transduction characteristics and abrasion resistance, by specifying the density, protrusion height and burst void density of a biaxially oriented polyester film having many fine protrusions on the surface and containing a lubricant. CONSTITUTION:A polyester comprising at least 80mol.%, based on the total repeating units, ethylene terephthalate units and containing a lubricant (e.g., TiO2) is molded into a film, and this film is biaxially oriented at 180-230 deg.C for 120-2sec to obtain a biaxially oriented film having a density of 1.385-1.395g/cm<3>, an h(max) (the height of the highest protrusion in a region of an area of 0.01mm<2>) of 0.2-0.5mum, a density of burst voids present on the surface below 1/mm<2> and having many fine protrusions on the surface.
JP62201405A 1987-08-11 1987-08-11 Biaxially oriented polyester film Expired - Lifetime JPH0662792B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62201405A JPH0662792B2 (en) 1987-08-11 1987-08-11 Biaxially oriented polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62201405A JPH0662792B2 (en) 1987-08-11 1987-08-11 Biaxially oriented polyester film

Publications (2)

Publication Number Publication Date
JPS6443537A true JPS6443537A (en) 1989-02-15
JPH0662792B2 JPH0662792B2 (en) 1994-08-17

Family

ID=16440545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62201405A Expired - Lifetime JPH0662792B2 (en) 1987-08-11 1987-08-11 Biaxially oriented polyester film

Country Status (1)

Country Link
JP (1) JPH0662792B2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6071632A (en) * 1983-09-29 1985-04-23 Teijin Ltd Manufacture of polyester
JPS60166435A (en) * 1984-02-09 1985-08-29 Toyobo Co Ltd Oriented polyester film
JPS6168727A (en) * 1984-09-12 1986-04-09 Teijin Ltd Biaxially stretched polyester film
JPS62122734A (en) * 1985-11-25 1987-06-04 Teijin Ltd Polyester film
JPS62164538A (en) * 1986-01-16 1987-07-21 帝人株式会社 Biaxial-oriented laminated polyester film
EP0229670A2 (en) * 1986-01-17 1987-07-22 Teijin Limited Biaxially oriented aromatic polyester film
JPS63108037A (en) * 1986-08-27 1988-05-12 Teijin Ltd Biaxially oriented polyester film

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6071632A (en) * 1983-09-29 1985-04-23 Teijin Ltd Manufacture of polyester
JPS60166435A (en) * 1984-02-09 1985-08-29 Toyobo Co Ltd Oriented polyester film
JPS6168727A (en) * 1984-09-12 1986-04-09 Teijin Ltd Biaxially stretched polyester film
JPS62122734A (en) * 1985-11-25 1987-06-04 Teijin Ltd Polyester film
JPS62164538A (en) * 1986-01-16 1987-07-21 帝人株式会社 Biaxial-oriented laminated polyester film
EP0229670A2 (en) * 1986-01-17 1987-07-22 Teijin Limited Biaxially oriented aromatic polyester film
JPS63108037A (en) * 1986-08-27 1988-05-12 Teijin Ltd Biaxially oriented polyester film

Also Published As

Publication number Publication date
JPH0662792B2 (en) 1994-08-17

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