GB1430291A - Process for the preparation of a biaxially oriented polyester film - Google Patents

Process for the preparation of a biaxially oriented polyester film

Info

Publication number
GB1430291A
GB1430291A GB1837273A GB1837273A GB1430291A GB 1430291 A GB1430291 A GB 1430291A GB 1837273 A GB1837273 A GB 1837273A GB 1837273 A GB1837273 A GB 1837273A GB 1430291 A GB1430291 A GB 1430291A
Authority
GB
United Kingdom
Prior art keywords
temperature
film
stage
drawn
optionally
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.)
Expired
Application number
GB1837273A
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 GB1837273A priority Critical patent/GB1430291A/en
Priority to FR7314143A priority patent/FR2226265B1/fr
Priority to DE19732320118 priority patent/DE2320118C3/en
Publication of GB1430291A publication Critical patent/GB1430291A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
    • B29C55/143—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly parallel to the direction of feed and then transversely thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1430291 Stretching polyethylene terephthalate films TEIJIN Ltd 17 April 1973 18372/73 Heading B5B Biaxially stretched polyethylene terephthalate films are produced by a two-stage drawing process. In the first step the film is drawn to 3À5 to 5À0 times its original dimension at a temperature such that the refractive index n sd of the film after this step is less than 1À560. In the second step the film is drawn in the transverse direction to 3À0 to 4À0 times the original dimensions at a temperature of 50- 150‹ C. The first step may be preceded by a predrawing in the same direction to 1À2 to 3À0 times the original dimension and a temperature between the second order transition temperature and 120‹ C. The second step may optionally be performed in two stages, the first at a temperature of 50-95‹ C. at a draw ratio of at least 1À1 but less than 95% of the total draw ratio of this stage, the second completing the drawing and being performed at a temperature from 70- 150‹ C. and greater than or equal to the temperature of the first stage of this second step. Preferably the first drawing step is performed in the machine direction and the second in the transverse direction. The film may optionally be heat-set. The film may contain no more bifunctional acid components other than terephthalic acid, and diol components other than ethylene glycol, than a total of 15 mol per cent.
GB1837273A 1973-04-17 1973-04-17 Process for the preparation of a biaxially oriented polyester film Expired GB1430291A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1837273A GB1430291A (en) 1973-04-17 1973-04-17 Process for the preparation of a biaxially oriented polyester film
FR7314143A FR2226265B1 (en) 1973-04-17 1973-04-18
DE19732320118 DE2320118C3 (en) 1973-04-17 1973-04-19 Process for producing a biaxially oriented film from polyethylene terephthalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1837273A GB1430291A (en) 1973-04-17 1973-04-17 Process for the preparation of a biaxially oriented polyester film

Publications (1)

Publication Number Publication Date
GB1430291A true GB1430291A (en) 1976-03-31

Family

ID=10111335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1837273A Expired GB1430291A (en) 1973-04-17 1973-04-17 Process for the preparation of a biaxially oriented polyester film

Country Status (3)

Country Link
DE (1) DE2320118C3 (en)
FR (1) FR2226265B1 (en)
GB (1) GB1430291A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528354A1 (en) * 1982-06-10 1983-12-16 Rhone Poulenc Films METHOD FOR LONGITUDINAL STRETCHING OF POLYESTER FILM PRIOR TO STRETCHING TRANSVERSELY AND FILM THUS OBTAINED
EP0368319A2 (en) * 1988-11-11 1990-05-16 Diafoil Hoechst Co., Ltd Process for producing biaxially oriented polyester film
US5139727A (en) * 1988-11-11 1992-08-18 Daifoil Company, Limited Process for producing biaxially oriented polyester film
US5409657A (en) * 1991-10-24 1995-04-25 Rhone-Poulenc Films Process for making oriented semicrystalline polyester films

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342701B2 (en) * 1975-01-28 1978-11-14
DE2543006C2 (en) * 1974-09-27 1985-05-30 Teijin Ltd., Osaka Use of a biaxially oriented polyethylene terephthalate film as a greenhouse cover
US4238443A (en) * 1979-08-09 1980-12-09 E. I. Du Pont De Nemours And Company Process for transversely stretching polyethylene terephthalate film
JPS6056101B2 (en) * 1980-09-25 1985-12-09 東レ株式会社 Manufacturing method of polyester film
GB2134442B (en) * 1983-01-18 1987-05-28 Diafoil Co Ltd Polyester film for magnetic recording media
JPS59140028A (en) * 1983-01-18 1984-08-11 Diafoil Co Ltd Preparation of polyester film
WO1985001247A1 (en) * 1983-09-14 1985-03-28 Diafoil Company, Limited Process for producing biaxially oriented polyester film
DE3408613C3 (en) * 1984-03-09 1996-02-08 Alkor Gmbh Method and device for producing undrawn polypropylene films with improved weldability
JPH0625267B2 (en) * 1985-12-17 1994-04-06 ダイアホイルヘキスト株式会社 Polyethylene-2,6-naphthalate film for high density magnetic recording media

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2823421A (en) * 1952-05-12 1958-02-18 Du Pont Stretching of polyethylene terephthalate film
DE1034845B (en) * 1952-06-05 1958-07-24 Du Pont Device for longitudinal stretching of a polymer film
DE1096592B (en) * 1953-12-31 1961-01-05 Ici Ltd Process for the progressive cold transverse stretching of a film made of organic thermoplastic material that is moved continuously in its longitudinal direction
DE1083041B (en) * 1954-03-30 1960-06-09 Du Pont Process for the production of oriented planar structures from synthetic linear, organic polymers
DE1199970B (en) * 1959-07-29 1965-09-02 Du Pont Process for the production of molecularly oriented, metallic glossy films from a crystallizable, linear polyester
US2975484A (en) * 1959-09-02 1961-03-21 Du Pont Process for producing films
GB1162677A (en) * 1965-11-26 1969-08-27 Agfa Gevaert Nv Process for making Isotropic Polymeric Film
US3432591A (en) * 1966-10-21 1969-03-11 Du Pont Biaxially oriented heat set film of high molecular weight polyethylene terephthalate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2528354A1 (en) * 1982-06-10 1983-12-16 Rhone Poulenc Films METHOD FOR LONGITUDINAL STRETCHING OF POLYESTER FILM PRIOR TO STRETCHING TRANSVERSELY AND FILM THUS OBTAINED
EP0097108A1 (en) * 1982-06-10 1983-12-28 Rhone-Poulenc Films Process for longitudinally stretching polyester film previously transversely stretched, and a film thereby obtained
EP0368319A2 (en) * 1988-11-11 1990-05-16 Diafoil Hoechst Co., Ltd Process for producing biaxially oriented polyester film
EP0368319A3 (en) * 1988-11-11 1992-01-15 Diafoil Hoechst Co., Ltd Process for producing biaxially oriented polyester film
US5139727A (en) * 1988-11-11 1992-08-18 Daifoil Company, Limited Process for producing biaxially oriented polyester film
US5409657A (en) * 1991-10-24 1995-04-25 Rhone-Poulenc Films Process for making oriented semicrystalline polyester films

Also Published As

Publication number Publication date
DE2320118B2 (en) 1979-11-29
DE2320118C3 (en) 1984-08-02
FR2226265A1 (en) 1974-11-15
FR2226265B1 (en) 1979-01-12
DE2320118A1 (en) 1974-11-07

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930416