JPS55154130A - Preparation of polyester film - Google Patents

Preparation of polyester film

Info

Publication number
JPS55154130A
JPS55154130A JP5265079A JP5265079A JPS55154130A JP S55154130 A JPS55154130 A JP S55154130A JP 5265079 A JP5265079 A JP 5265079A JP 5265079 A JP5265079 A JP 5265079A JP S55154130 A JPS55154130 A JP S55154130A
Authority
JP
Japan
Prior art keywords
polyester
compounded
extruded
pulverized silica
preparation
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
JP5265079A
Other languages
Japanese (ja)
Other versions
JPS626975B2 (en
Inventor
Takeshi Hongo
Hikoichi Nagano
Atsushi Ikegami
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.)
Toyobo Co Ltd
Original Assignee
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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP5265079A priority Critical patent/JPS55154130A/en
Publication of JPS55154130A publication Critical patent/JPS55154130A/en
Publication of JPS626975B2 publication Critical patent/JPS626975B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • 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 a film improved in the drawing property and excellent in transparency, apperance and slidability by applying uniaxial drawing to an undrawn sheet of polyester compounded with a specified quantity of specific pulverized silica. CONSTITUTION:The polyester whose main unit is ethylene terephthalate is compounded with the pulverized silica in the particle diameter of 0.01-10mu or preferably 0.1-5mu which is coated with polyolefin wax and accounts for 0.01-3wt% or preferably 0.025-0.5wt% in the entire composition, and the polyester composition thus formed is melted and extruded. Then the extruded sheet is drawn uniaxially in the longitudinal direction twice or more, or preferably 2.5 times or more under the temperature of 80-140 deg.C by using a roll drawing machine. In addition, as occasion calls, the 2nd-axial drawing is conducted in the direction of width.
JP5265079A 1979-04-27 1979-04-27 Preparation of polyester film Granted JPS55154130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5265079A JPS55154130A (en) 1979-04-27 1979-04-27 Preparation of polyester film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5265079A JPS55154130A (en) 1979-04-27 1979-04-27 Preparation of polyester film

Publications (2)

Publication Number Publication Date
JPS55154130A true JPS55154130A (en) 1980-12-01
JPS626975B2 JPS626975B2 (en) 1987-02-14

Family

ID=12920719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5265079A Granted JPS55154130A (en) 1979-04-27 1979-04-27 Preparation of polyester film

Country Status (1)

Country Link
JP (1) JPS55154130A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03168225A (en) * 1989-11-29 1991-07-22 Diafoil Co Ltd Biaxially oriented polyester film
US5405921A (en) * 1993-02-03 1995-04-11 E. I. Du Pont De Nemours And Company Polyester compositions having improved optical properties and heat stability
US6037063A (en) * 1993-09-07 2000-03-14 E. I. Du Pont De Nemours And Company High barrier, coextruded compositions useful in the manufacture of clear, heat-stable articles and methods relating thereto
USH2169H1 (en) * 1985-03-11 2006-09-05 Shell Oil Company Method of manufacturing partially crystalline polyester articles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USH2169H1 (en) * 1985-03-11 2006-09-05 Shell Oil Company Method of manufacturing partially crystalline polyester articles
JPH03168225A (en) * 1989-11-29 1991-07-22 Diafoil Co Ltd Biaxially oriented polyester film
US5405921A (en) * 1993-02-03 1995-04-11 E. I. Du Pont De Nemours And Company Polyester compositions having improved optical properties and heat stability
US6037063A (en) * 1993-09-07 2000-03-14 E. I. Du Pont De Nemours And Company High barrier, coextruded compositions useful in the manufacture of clear, heat-stable articles and methods relating thereto

Also Published As

Publication number Publication date
JPS626975B2 (en) 1987-02-14

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