GB825549A - Improvements in or relating to linear copolyester films - Google Patents

Improvements in or relating to linear copolyester films

Info

Publication number
GB825549A
GB825549A GB296856A GB296856A GB825549A GB 825549 A GB825549 A GB 825549A GB 296856 A GB296856 A GB 296856A GB 296856 A GB296856 A GB 296856A GB 825549 A GB825549 A GB 825549A
Authority
GB
United Kingdom
Prior art keywords
film
heat treatment
orienting
effected
mol
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
GB296856A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB825549A publication Critical patent/GB825549A/en
Expired 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181—Acids containing aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • 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
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Wrappers (AREA)

Abstract

A polyester film, having a reduced tendency to crystallize compared with polyethylene terephthalate, is made by first forming a film from a linear copolyester derived from ethylene glycol, 95-65 mol. per cent of terephthalic acid and correspondingly 5-35 mol. per cent of isophthalic acid, then orienting the film and finally subjecting it to a heat treatment at such a temperature and for such a time as would, in the absence of a restraining tension, bring about shrinkage of the film. Either the film is allowed to shrink during the heat treatment, e.g. round the neck of a bottle or a foodstuff to be packaged, or it is held against shrinkage to produce a heat-set film useful in the manufacture of bags or dielectric materials. Orienting of the film is effected by stretching and/or rolling the extruded film in either or both the longitudinal and transverse directions. In an example film made by extrusion on to a rotating quench drum maintained at 80-90 DEG C. is continuously stretched 3X in the machine direction over differential rolls maintained at 80-90 DEG C. and then stretched 3X in the transverse direction in a tentering apparatus while maintaining the atmosphere round the film at 95-105 DEG C. The heat treatment may be effected at 104-105 DEG C. or in a hot water bath. The preparation of the copolyesters is claimed in Specification 825,550. Specifications 578,079, [Group IV], and 766,290 also are referred to.
GB296856A 1955-02-04 1956-01-30 Improvements in or relating to linear copolyester films Expired GB825549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48629055A 1955-02-04 1955-02-04

Publications (1)

Publication Number Publication Date
GB825549A true GB825549A (en) 1959-12-16

Family

ID=33435284

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2171258A Expired GB825550A (en) 1955-02-04 1956-01-30 Improvements relating to linear polyesters
GB296856A Expired GB825549A (en) 1955-02-04 1956-01-30 Improvements in or relating to linear copolyester films

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2171258A Expired GB825550A (en) 1955-02-04 1956-01-30 Improvements relating to linear polyesters

Country Status (4)

Country Link
BE (1) BE544979A (en)
DE (1) DE1187792B (en)
FR (1) FR1145462A (en)
GB (2) GB825550A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073857A (en) 1974-09-10 1978-02-14 Teijin Limited Deep-drawing of a monoaxially oriented, heat relaxed polyester film
JPS6291555A (en) * 1985-10-18 1987-04-27 Toyobo Co Ltd Heat-shrinkable polyester film
JPS6292826A (en) * 1985-10-18 1987-04-28 Toyobo Co Ltd Heat-shrinkable polyester-based tube
EP0267799A2 (en) * 1986-11-12 1988-05-18 Diafoil Hoechst Co., Ltd Shrinkable polyester film
US4983653A (en) * 1986-11-12 1991-01-08 Diafoil Company, Ltd. Polyester shrinkable film containing benzotriazole
WO1999062982A1 (en) * 1998-06-03 1999-12-09 E.I. Du Pont De Nemours And Company Polyester film

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3667993D1 (en) * 1985-07-31 1990-02-08 Toyo Boseki HEAT-SHRINKABLE POLYESTER FILM AND HOSE AND MANUFACTURING METHOD FOR THE HOSE.
EP0606663A1 (en) * 1993-01-12 1994-07-20 Agfa-Gevaert N.V. Method of manufacturing a photographic reflective support

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3798C (en) * LENZ & SCHMIDT in Berlin Innovations in file cutting machines
US2675367A (en) * 1951-04-11 1954-04-13 Eastman Kodak Co Bis(4-beta-hydroxyalkoxyphenyl) ketones and polyesters prepared therefrom

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073857A (en) 1974-09-10 1978-02-14 Teijin Limited Deep-drawing of a monoaxially oriented, heat relaxed polyester film
JPS6291555A (en) * 1985-10-18 1987-04-27 Toyobo Co Ltd Heat-shrinkable polyester film
JPS6292826A (en) * 1985-10-18 1987-04-28 Toyobo Co Ltd Heat-shrinkable polyester-based tube
JPH0367609B2 (en) * 1985-10-18 1991-10-23 Toyo Boseki
JPH0410854B2 (en) * 1985-10-18 1992-02-26
EP0267799A2 (en) * 1986-11-12 1988-05-18 Diafoil Hoechst Co., Ltd Shrinkable polyester film
EP0267799A3 (en) * 1986-11-12 1989-05-03 Diafoil Company, Limited Shrinkable polyester film
US4983653A (en) * 1986-11-12 1991-01-08 Diafoil Company, Ltd. Polyester shrinkable film containing benzotriazole
US4985538A (en) * 1986-11-12 1991-01-15 Diafoil Company, Limited Shrinkable polyester film
EP0409288A2 (en) * 1986-11-12 1991-01-23 Diafoil Hoechst Co., Ltd Shrinkable polyester film
EP0409288A3 (en) * 1986-11-12 1991-10-16 Diafoil Company, Limited Shrinkable polyester film
WO1999062982A1 (en) * 1998-06-03 1999-12-09 E.I. Du Pont De Nemours And Company Polyester film

Also Published As

Publication number Publication date
BE544979A (en)
GB825550A (en) 1959-12-16
DE1187792B (en) 1965-02-25
FR1145462A (en) 1957-10-25

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