JPS562127A - Manufacturing method for film of polyester - Google Patents

Manufacturing method for film of polyester

Info

Publication number
JPS562127A
JPS562127A JP7800879A JP7800879A JPS562127A JP S562127 A JPS562127 A JP S562127A JP 7800879 A JP7800879 A JP 7800879A JP 7800879 A JP7800879 A JP 7800879A JP S562127 A JPS562127 A JP S562127A
Authority
JP
Japan
Prior art keywords
approximate
film
shearing
slit
polyester
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
JP7800879A
Other languages
Japanese (ja)
Other versions
JPS6233931B2 (en
Inventor
Takanori Urasaki
Yasuji Hirabayashi
Makoto Ogasawara
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 JP7800879A priority Critical patent/JPS562127A/en
Publication of JPS562127A publication Critical patent/JPS562127A/en
Publication of JPS6233931B2 publication Critical patent/JPS6233931B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To manufacture a film which is excellent in dimension stability in the longitudinal and lateral directions and the unevenness of thickness is few by a method wherein polyester forming optical anisotropic melting substance is melted and extruded applying shearing stress in the direction rectangular to the discharging direction. CONSTITUTION:A film is manufactured in such a manner that shearing force [shearing speed (preferably, 10-100 times) not less than approximate twice as fast as the shearing speed of optical anisotropic melting substance in the discharging direction is used as the shearing speed] is applied to the melting substance during the time when passing through a slit of an approximate 0.001-10mm. void by moving a member forming the slit in the direction that the shearing force will be given when the film is made up by melting and extruding polyester forming the melting substance from the slit at approximate 240-400 deg.C. Preferably, substance, principal chain thereof contains not less than approximate 50mol% para position aromatic group and softening point thereof is approximate 150-380 deg.C, is used as the said polyester.
JP7800879A 1979-06-22 1979-06-22 Manufacturing method for film of polyester Granted JPS562127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7800879A JPS562127A (en) 1979-06-22 1979-06-22 Manufacturing method for film of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7800879A JPS562127A (en) 1979-06-22 1979-06-22 Manufacturing method for film of polyester

Publications (2)

Publication Number Publication Date
JPS562127A true JPS562127A (en) 1981-01-10
JPS6233931B2 JPS6233931B2 (en) 1987-07-23

Family

ID=13649751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7800879A Granted JPS562127A (en) 1979-06-22 1979-06-22 Manufacturing method for film of polyester

Country Status (1)

Country Link
JP (1) JPS562127A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63184500A (en) * 1986-09-22 1988-07-29 Idemitsu Petrochem Co Ltd Film for acoustic diaphragm
JPS63199622A (en) * 1987-02-13 1988-08-18 Mitsubishi Kasei Corp Molding method for multi-layer film
JPH01130930A (en) * 1987-11-17 1989-05-23 Sumitomo Bakelite Co Ltd Manufacture of liquid-crystalline wholly aromatic polyester film
JPH0289616A (en) * 1988-09-28 1990-03-29 Daicel Chem Ind Ltd Film and manufacture thereof
US4973442A (en) * 1985-09-26 1990-11-27 Foster Miller Inc. Forming biaxially oriented ordered polymer films
US6132668A (en) * 1985-09-26 2000-10-17 Foster-Miller, Inc. Biaxially oriented ordered polymer films

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52109578A (en) * 1976-03-12 1977-09-13 Teijin Ltd Laminated articles
JPS5347460A (en) * 1976-10-12 1978-04-27 Asahi Chemical Ind Method of producing aromatic polyamide film
JPS5386798A (en) * 1977-01-11 1978-07-31 Teijin Ltd Polyester film and its production

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52109578A (en) * 1976-03-12 1977-09-13 Teijin Ltd Laminated articles
JPS5347460A (en) * 1976-10-12 1978-04-27 Asahi Chemical Ind Method of producing aromatic polyamide film
JPS5386798A (en) * 1977-01-11 1978-07-31 Teijin Ltd Polyester film and its production

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973442A (en) * 1985-09-26 1990-11-27 Foster Miller Inc. Forming biaxially oriented ordered polymer films
US6132668A (en) * 1985-09-26 2000-10-17 Foster-Miller, Inc. Biaxially oriented ordered polymer films
JPS63184500A (en) * 1986-09-22 1988-07-29 Idemitsu Petrochem Co Ltd Film for acoustic diaphragm
JPS63199622A (en) * 1987-02-13 1988-08-18 Mitsubishi Kasei Corp Molding method for multi-layer film
JPH01130930A (en) * 1987-11-17 1989-05-23 Sumitomo Bakelite Co Ltd Manufacture of liquid-crystalline wholly aromatic polyester film
JPH0289616A (en) * 1988-09-28 1990-03-29 Daicel Chem Ind Ltd Film and manufacture thereof

Also Published As

Publication number Publication date
JPS6233931B2 (en) 1987-07-23

Similar Documents

Publication Publication Date Title
ES2027653T3 (en) METHOD OF MANUFACTURING PANELS, APPARATUS TO MAKE THIS METHOD AND PANELS OBTAINED WITH THEM.
EP0381402A3 (en) Split extrusion die assembly for thermoplastic materials and methods of using the same
DE3825923A1 (en) IMAGE RECORDING MATERIAL FOR TRAINING THREE-DIMENSIONAL IMAGES
DE3583941D1 (en) HOLLOW FIBER MEMBRANE WITH SELECTIVE PLANTABILITY, THEIR PRODUCTION AND METHOD FOR SEPARATING PLASMA COMPONENTS AND PLASMA COMPONENT SEPARATORS.
ATE27675T1 (en) APPARATUS FOR THE MANUFACTURE OF A CONFECTIONERY SEMI-PRODUCT APPLICABLE FOR THE MANUFACTURE OF CANDY AND THE LIKE WITH A CRUMPTY FILLING.
BR0207915A (en) Process for the preparation of a solid formulation of an agrochemical substance
MX168056B (en) PROCEDURE FOR PRODUCING ENHANCED AND DEORATIVE THERMOPLASTIC SHEETS
DE3579673D1 (en) POLYACAHETEROCYCLIC COMBINATION BLADES, METHOD FOR THE PRODUCTION THEREOF AND MEDICINAL COMPOSITION.
EP0168636A3 (en) Method for making multilayer coating
DE59203359D1 (en) Saturated, liquid isobutylene polymers end-functionalized by special groups, a process for their preparation and their use for the production of low-viscosity rubber mixtures.
DE1464487A1 (en) Process for manufacturing electrical capacitors
BR8203503A (en) MATERIAL WITH FUNCTIONALITY OF ACID HALOGENIDE OR ACIL-LACTAMA COMPOSITION UNDERSTANDING THE SAME AND PROCESS FOR PREPARING A POLYMER BY NAILON BLOCKS
BR8101205A (en) LIQUID COMPOSITION AND PROCESS FOR PREPARING AN INSECTICIDE COMPOSITION
JPS6431630A (en) Molding method of honeycomb core made of permeable material
KR880006027A (en) Injection Molding Method of Micro Pipette
EP0036593B1 (en) Sugar foam produce
DE2366420C2 (en) Composite profile with two metal profiles that are connected to one another by an insulating layer
EP0154942B1 (en) Bundle of articles comprising a wrapper formed of a shrink-film
DE3533349A1 (en) DEVICE FOR HEATING PLASTIC MEASURES
JPS55144322A (en) Production of composite wire
JPS53140510A (en) Manufacturing method of superconductive rotor
DE1936920A1 (en) Sugar centrifuge drum
PT71516A (en) CONSTRUCTION AND ROAD COATING MATERIALS METHOD FOR MANUFACTURING THEM AND THEIR APPLICATION
JPS54132674A (en) Manufacturing of p-oriented aromatic polyamide film
JPS57207047A (en) Manufacture of resin-covered material