JPS5440883A - Polyester film - Google Patents

Polyester film

Info

Publication number
JPS5440883A
JPS5440883A JP10693677A JP10693677A JPS5440883A JP S5440883 A JPS5440883 A JP S5440883A JP 10693677 A JP10693677 A JP 10693677A JP 10693677 A JP10693677 A JP 10693677A JP S5440883 A JPS5440883 A JP S5440883A
Authority
JP
Japan
Prior art keywords
film
thickener
wax
surfactant
longitudinal direction
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
JP10693677A
Other languages
Japanese (ja)
Other versions
JPS6039022B2 (en
Inventor
Masaaki Ono
Kazuo Okabe
Yasuki Miura
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP10693677A priority Critical patent/JPS6039022B2/en
Publication of JPS5440883A publication Critical patent/JPS5440883A/en
Publication of JPS6039022B2 publication Critical patent/JPS6039022B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Magnetic Record Carriers (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: A coating film of granular mixture consisting of a specific epoxy resin, a wax, a thickener and/or a surfactant is formed on the one side surface of smooth polyester film to produce titled film with excellent smoothness, sliding property and wearing resistance.
CONSTITUTION: An unoriented and amorophous polyester that does not contain inner particles originated from polymerization catalysts and outer particles originated additives is melt extruded, and after cooling, oriented monoaxially in the longitudinal direction at a stretch ratio of 3W3.5. The one side surface of the resulting film is coated with a film-forming resin composition comprising 10W85wt% of an epoxy resin with 1,500W2,500 epoxy equivalency, 10W65wt% of a wax, and 2W 60wt% of a thickener and/or a surfactant in an amount of 5W500mg/m2. The resulting film is dried in the preheater of tenter in the biaxial stretcher at 100W150°C at a moisture drying rate of more than 15%/sec, the streched in the traverse direction at a stretch ratio of 2.5W4.5 at 90W120°C to form the granular layer of the resin composition. Further, the film is restretched in the longitudinal direction at a ratio 1.1W 1.8 at 180W220°C and heat treated at 180W220°C.
COPYRIGHT: (C)1979,JPO&Japio
JP10693677A 1977-09-06 1977-09-06 polyester film Expired JPS6039022B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10693677A JPS6039022B2 (en) 1977-09-06 1977-09-06 polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10693677A JPS6039022B2 (en) 1977-09-06 1977-09-06 polyester film

Publications (2)

Publication Number Publication Date
JPS5440883A true JPS5440883A (en) 1979-03-31
JPS6039022B2 JPS6039022B2 (en) 1985-09-04

Family

ID=14446268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10693677A Expired JPS6039022B2 (en) 1977-09-06 1977-09-06 polyester film

Country Status (1)

Country Link
JP (1) JPS6039022B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195321A (en) * 1981-05-08 1982-12-01 Teijin Ltd Metallic thin film magnetic recording medium
JPS5862826A (en) * 1981-10-12 1983-04-14 Toray Ind Inc Polyester film for magnetic recording medium
JPS5874355A (en) * 1981-10-29 1983-05-04 松下電器産業株式会社 Polyester film
JPS58153639A (en) * 1982-03-10 1983-09-12 東レ株式会社 Composite film
JPS61203451A (en) * 1985-03-06 1986-09-09 Mitsubishi Paper Mills Ltd Method for applying thin layers of gelatin-containing photographic layers
JPS61204629A (en) * 1985-03-07 1986-09-10 Fuji Photo Film Co Ltd Photosensitive material
JPS62259227A (en) * 1986-05-06 1987-11-11 Teijin Ltd Base film for magnetic recording medium
EP0786495A3 (en) * 1996-01-23 1998-05-27 Oji-Yuka Synthetic Paper Co., Ltd. Thermoplastic polyester resin stretched film

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6394221A (en) * 1986-10-09 1988-04-25 Yamaha Corp Titanium alloy for spectacles frame

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195321A (en) * 1981-05-08 1982-12-01 Teijin Ltd Metallic thin film magnetic recording medium
JPS5862826A (en) * 1981-10-12 1983-04-14 Toray Ind Inc Polyester film for magnetic recording medium
JPS5874355A (en) * 1981-10-29 1983-05-04 松下電器産業株式会社 Polyester film
JPS58153639A (en) * 1982-03-10 1983-09-12 東レ株式会社 Composite film
JPS61203451A (en) * 1985-03-06 1986-09-09 Mitsubishi Paper Mills Ltd Method for applying thin layers of gelatin-containing photographic layers
JPS61204629A (en) * 1985-03-07 1986-09-10 Fuji Photo Film Co Ltd Photosensitive material
JPS62259227A (en) * 1986-05-06 1987-11-11 Teijin Ltd Base film for magnetic recording medium
EP0786495A3 (en) * 1996-01-23 1998-05-27 Oji-Yuka Synthetic Paper Co., Ltd. Thermoplastic polyester resin stretched film

Also Published As

Publication number Publication date
JPS6039022B2 (en) 1985-09-04

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