JPS57189823A - Production of polyester film - Google Patents

Production of polyester film

Info

Publication number
JPS57189823A
JPS57189823A JP7480381A JP7480381A JPS57189823A JP S57189823 A JPS57189823 A JP S57189823A JP 7480381 A JP7480381 A JP 7480381A JP 7480381 A JP7480381 A JP 7480381A JP S57189823 A JPS57189823 A JP S57189823A
Authority
JP
Japan
Prior art keywords
film
polyester
ethylene glycol
mainly composed
isophthalic acid
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.)
Pending
Application number
JP7480381A
Other languages
Japanese (ja)
Inventor
Shunei Inoue
Kenjiro Horiuchi
Masakata Yanagi
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 JP7480381A priority Critical patent/JPS57189823A/en
Publication of JPS57189823A publication Critical patent/JPS57189823A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers

Abstract

PURPOSE:To obtain the titled film having high strength and high modulus of elasticity, by forming a copolymer polyester mainly composed of 4,4'-diphenyl dicarboxylic acid, isophthalic acid and ethylene glycol into a film, and bi-axially elongating the film. CONSTITUTION:A dicarboxylic component, comprising 25-75mol% of 4,4'- diphenyl carboxylic acid and 55-25mol% of isophthalic acid, is esterified or transesterified with a diol component mainly composed of ethylene glycol, and then the reaction product is subjected to ordinary polyester-polycondensation to prepare copolymerized polyester having intrinsic viscosity of 0.5-1.8. After the obtained copolymerized polyester is formed into a film, the film is bi-axially elongated in a manner such that its area magnification will be >=6 times. In this way, an objective polyester film is obtained.
JP7480381A 1981-05-20 1981-05-20 Production of polyester film Pending JPS57189823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7480381A JPS57189823A (en) 1981-05-20 1981-05-20 Production of polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7480381A JPS57189823A (en) 1981-05-20 1981-05-20 Production of polyester film

Publications (1)

Publication Number Publication Date
JPS57189823A true JPS57189823A (en) 1982-11-22

Family

ID=13557826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7480381A Pending JPS57189823A (en) 1981-05-20 1981-05-20 Production of polyester film

Country Status (1)

Country Link
JP (1) JPS57189823A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013464A1 (en) 1992-12-09 1994-06-23 Hoechst Aktiengesellschaft Biaxially oriented copolyester film for capacitor dielectric use or thermal transfer ribbon use
EP0671993A4 (en) * 1992-12-09 1995-08-01 Hoechst Ag Biaxially oriented copolyester film for magnetic recording disks and magnetic recording disks made therefrom.
EP0671991A4 (en) * 1992-12-09 1995-08-01 Hoechst Ag Biaxially oriented penbb film for magnetic recording medium and magnetic recording media made therewith.
EP0671994A1 (en) * 1992-12-09 1995-09-20 Hoechst Aktiengesellschaft Copolyester film primed with acrylic polymers
EP0674589A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Electrical insulation from biaxially oriented penbb film
EP0674580A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Improved biaxially oriented copolyester film for magnetic recording media
EP0674587A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Improved biaxially oriented copolyester film for magnetic recording media
EP0674591A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Biaxially oriented copolyester film primed with vinyl acetate polymers
EP0674586A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft A biaxially oriented two-layer copolyester film for capacitor dielectric use
EP0674588A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Biaxially oriented copolyester film
EP0674590A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Coated biaxially oriented copolyester film

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013464A1 (en) 1992-12-09 1994-06-23 Hoechst Aktiengesellschaft Biaxially oriented copolyester film for capacitor dielectric use or thermal transfer ribbon use
EP0671993A4 (en) * 1992-12-09 1995-08-01 Hoechst Ag Biaxially oriented copolyester film for magnetic recording disks and magnetic recording disks made therefrom.
EP0671990A4 (en) * 1992-12-09 1995-08-01 Hoechst Ag Biaxially oriented copolyester film for capacitor dielectric use or thermal transfer ribbon use.
EP0671991A4 (en) * 1992-12-09 1995-08-01 Hoechst Ag Biaxially oriented penbb film for magnetic recording medium and magnetic recording media made therewith.
EP0671994A1 (en) * 1992-12-09 1995-09-20 Hoechst Aktiengesellschaft Copolyester film primed with acrylic polymers
EP0671991A1 (en) * 1992-12-09 1995-09-20 Hoechst Aktiengesellschaft Biaxially oriented penbb film for magnetic recording medium and magnetic recording media made therewith
EP0671990A1 (en) * 1992-12-09 1995-09-20 Hoechst Aktiengesellschaft Biaxially oriented copolyester film for capacitor dielectric use or thermal transfer ribbon use
EP0671993A1 (en) * 1992-12-09 1995-09-20 Hoechst Aktiengesellschaft Biaxially oriented copolyester film for magnetic recording disks and magnetic recording disks made therefrom
EP0674589A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Electrical insulation from biaxially oriented penbb film
EP0674580A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Improved biaxially oriented copolyester film for magnetic recording media
EP0674587A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Improved biaxially oriented copolyester film for magnetic recording media
EP0674591A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Biaxially oriented copolyester film primed with vinyl acetate polymers
EP0674586A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft A biaxially oriented two-layer copolyester film for capacitor dielectric use
EP0674588A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Biaxially oriented copolyester film
EP0674590A1 (en) * 1992-12-09 1995-10-04 Hoechst Aktiengesellschaft Coated biaxially oriented copolyester film

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