JPS5764516A - Smothened polyester film - Google Patents

Smothened polyester film

Info

Publication number
JPS5764516A
JPS5764516A JP55139252A JP13925280A JPS5764516A JP S5764516 A JPS5764516 A JP S5764516A JP 55139252 A JP55139252 A JP 55139252A JP 13925280 A JP13925280 A JP 13925280A JP S5764516 A JPS5764516 A JP S5764516A
Authority
JP
Japan
Prior art keywords
film
polyester film
polyester
indicates
density
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
JP55139252A
Other languages
Japanese (ja)
Other versions
JPS634571B2 (en
Inventor
Hideo Kato
Atsushi Yamamoto
Takao Nakajo
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 JP55139252A priority Critical patent/JPS5764516A/en
Publication of JPS5764516A publication Critical patent/JPS5764516A/en
Publication of JPS634571B2 publication Critical patent/JPS634571B2/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)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To provide the subject polyester film improved in movability and crack resistance by causing the film to contain a surface coarsening substance and a smoothening agent to set the surface projection and density of the film in specific ranges. CONSTITUTION:To a polyester (such as polyethylene phthalate) blended with a surface coarsening substance inorganic fine particles of hydrated aluminum silicate, silica and the like), is added 0.01-5wt% of sorbitan ester (preferably triester) as a smoothening agent, to form a smoothened polyester film satisfying a relationship shown by the formula, wherein H indicates the number of projections having a height of above 0.54mu formed on the surface having a height above 1mm.<2> of the film, and p indicates the film density in terms of g/cm<2>.
JP55139252A 1980-10-07 1980-10-07 Smothened polyester film Granted JPS5764516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55139252A JPS5764516A (en) 1980-10-07 1980-10-07 Smothened polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55139252A JPS5764516A (en) 1980-10-07 1980-10-07 Smothened polyester film

Publications (2)

Publication Number Publication Date
JPS5764516A true JPS5764516A (en) 1982-04-19
JPS634571B2 JPS634571B2 (en) 1988-01-29

Family

ID=15240978

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55139252A Granted JPS5764516A (en) 1980-10-07 1980-10-07 Smothened polyester film

Country Status (1)

Country Link
JP (1) JPS5764516A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58206664A (en) * 1982-05-28 1983-12-01 Teijin Ltd Biaxially oriented polyester film
JPS5945348A (en) * 1982-09-09 1984-03-14 Teijin Ltd Polyethylene terephthalate film for metallic thin film magnetic recording medium
US4617164A (en) * 1983-01-18 1986-10-14 Diafoil Company, Limited Process for stretching polyester films
US4876137A (en) * 1985-12-17 1989-10-24 Diafoil Company, Limited Polyethylene naphthalate film for high-density magnetic recording media of floppy disk
JPH0620754U (en) * 1992-08-24 1994-03-18 オリエンタル建設株式会社 Recessed Mold Formwork for Connecting PC Girder Horizontal Girders
JP2016074093A (en) * 2014-10-02 2016-05-12 信越ポリマー株式会社 Method for producing amorphous thermoplastic resin film

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58206664A (en) * 1982-05-28 1983-12-01 Teijin Ltd Biaxially oriented polyester film
JPS5945348A (en) * 1982-09-09 1984-03-14 Teijin Ltd Polyethylene terephthalate film for metallic thin film magnetic recording medium
JPH0149173B2 (en) * 1982-09-09 1989-10-23 Teijin Ltd
US4617164A (en) * 1983-01-18 1986-10-14 Diafoil Company, Limited Process for stretching polyester films
US4876137A (en) * 1985-12-17 1989-10-24 Diafoil Company, Limited Polyethylene naphthalate film for high-density magnetic recording media of floppy disk
JPH0620754U (en) * 1992-08-24 1994-03-18 オリエンタル建設株式会社 Recessed Mold Formwork for Connecting PC Girder Horizontal Girders
JP2016074093A (en) * 2014-10-02 2016-05-12 信越ポリマー株式会社 Method for producing amorphous thermoplastic resin film

Also Published As

Publication number Publication date
JPS634571B2 (en) 1988-01-29

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