JPS57185345A - Production of polyester film - Google Patents

Production of polyester film

Info

Publication number
JPS57185345A
JPS57185345A JP56069132A JP6913281A JPS57185345A JP S57185345 A JPS57185345 A JP S57185345A JP 56069132 A JP56069132 A JP 56069132A JP 6913281 A JP6913281 A JP 6913281A JP S57185345 A JPS57185345 A JP S57185345A
Authority
JP
Japan
Prior art keywords
film
increased
polyester
carboxylic acid
static electricity
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
JP56069132A
Other languages
Japanese (ja)
Other versions
JPS6143173B2 (en
Inventor
Seiji Sakamoto
Tetsuo Nishimura
Akira Sato
Masaji Watanabe
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.)
Diafoil Co Ltd
Original Assignee
Diafoil 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 Diafoil Co Ltd filed Critical Diafoil Co Ltd
Priority to JP56069132A priority Critical patent/JPS57185345A/en
Publication of JPS57185345A publication Critical patent/JPS57185345A/en
Publication of JPS6143173B2 publication Critical patent/JPS6143173B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Moulding By Coating Moulds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:A carboxylic acid metal salt melting at a specific temperature is added to polyester of a certain resistivity to produce polyester films of improved electroconductivity and increased thickness accuracy without any adverse effect on its heat resistance, transparency and color tone. CONSTITUTION:A polyester of higher than 5X10<8>OMEGA-cm resistivity when melted, containing more than 80mol% ethylene terephthalate units, is mixed with an aliphatic mono- or dicarboxylic acid metal salt melting at 70-290 deg.C such as magnesium salt of 4-30C carboxylic acid, by 0.01-1wt% before melt extrusion. Then, the composition is made into amorphous film by the static electricity- application cooling method and the film is drawn into the objective film. The adhesion between the melted sheet and the cooling device is increased to enable more effective application of static electricity application cooling method, resulting in increased accuracy in film thickness.
JP56069132A 1981-05-08 1981-05-08 Production of polyester film Granted JPS57185345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56069132A JPS57185345A (en) 1981-05-08 1981-05-08 Production of polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56069132A JPS57185345A (en) 1981-05-08 1981-05-08 Production of polyester film

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP59098414A Division JPS59229314A (en) 1984-05-16 1984-05-16 Polyester film

Publications (2)

Publication Number Publication Date
JPS57185345A true JPS57185345A (en) 1982-11-15
JPS6143173B2 JPS6143173B2 (en) 1986-09-26

Family

ID=13393808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56069132A Granted JPS57185345A (en) 1981-05-08 1981-05-08 Production of polyester film

Country Status (1)

Country Link
JP (1) JPS57185345A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145418A (en) * 1982-02-23 1983-08-30 Diafoil Co Ltd Manufacture of amorphous polyester film
US4781963A (en) * 1986-04-16 1988-11-01 Diafoil Company, Limited Magnetic recording medium
JPH01244446A (en) * 1988-03-25 1989-09-28 Fuji Photo Film Co Ltd Photographic sensitive material
EP0826478A2 (en) * 1996-08-30 1998-03-04 Mitsubishi Polyester Film Corporation Process for producing polyester composition
JPH10323831A (en) * 1997-05-26 1998-12-08 Diafoil Co Ltd Production of polyester composition
EP0873844A3 (en) * 1997-04-23 1999-01-27 Mitsubishi Polyester Film Corporation Process for producing polyester composition

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6362025U (en) * 1986-10-11 1988-04-25
JPH01127524U (en) * 1988-02-17 1989-08-31

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5170269A (en) * 1974-12-17 1976-06-17 Toray Industries Horiesuterufuirumuno seizohoho
JPS52844A (en) * 1975-06-24 1977-01-06 Teijin Ltd Polymer partice
JPS55150317A (en) * 1979-05-14 1980-11-22 Teijin Ltd Process for producing thermoplastic rolymer molded article
JPS56139551A (en) * 1980-04-03 1981-10-31 Teijin Ltd Transparent, easily slipping polyethylene terephthalate film

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5170269A (en) * 1974-12-17 1976-06-17 Toray Industries Horiesuterufuirumuno seizohoho
JPS52844A (en) * 1975-06-24 1977-01-06 Teijin Ltd Polymer partice
JPS55150317A (en) * 1979-05-14 1980-11-22 Teijin Ltd Process for producing thermoplastic rolymer molded article
JPS56139551A (en) * 1980-04-03 1981-10-31 Teijin Ltd Transparent, easily slipping polyethylene terephthalate film

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145418A (en) * 1982-02-23 1983-08-30 Diafoil Co Ltd Manufacture of amorphous polyester film
JPH029927B2 (en) * 1982-02-23 1990-03-06 Daiafoil
US4781963A (en) * 1986-04-16 1988-11-01 Diafoil Company, Limited Magnetic recording medium
JPH01244446A (en) * 1988-03-25 1989-09-28 Fuji Photo Film Co Ltd Photographic sensitive material
EP0826478A2 (en) * 1996-08-30 1998-03-04 Mitsubishi Polyester Film Corporation Process for producing polyester composition
EP0826478A3 (en) * 1996-08-30 1999-06-09 Mitsubishi Polyester Film Corporation Process for producing polyester composition
EP1213123A1 (en) * 1996-08-30 2002-06-12 Mitsubishi Polyester Film Corporation Process for producing polyester composition
EP0873844A3 (en) * 1997-04-23 1999-01-27 Mitsubishi Polyester Film Corporation Process for producing polyester composition
JPH10323831A (en) * 1997-05-26 1998-12-08 Diafoil Co Ltd Production of polyester composition

Also Published As

Publication number Publication date
JPS6143173B2 (en) 1986-09-26

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