GB1314070A - Polyester film - Google Patents

Polyester film

Info

Publication number
GB1314070A
GB1314070A GB4791570A GB4791570A GB1314070A GB 1314070 A GB1314070 A GB 1314070A GB 4791570 A GB4791570 A GB 4791570A GB 4791570 A GB4791570 A GB 4791570A GB 1314070 A GB1314070 A GB 1314070A
Authority
GB
United Kingdom
Prior art keywords
mole percent
astm
polyester
films
acid
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
GB4791570A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1314070A publication Critical patent/GB1314070A/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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1314070 Polyester films EASTMAN KODAK CO 8 Oct 1970 [9 Oct 1969 5 Aug 1970] 47915/70 Heading B5B Transparent, unoriented, crystalline polyester films having a heat distortion temperature (as defined by ASTM D1637) of at least 80‹ C. and an Elmendorf tear strength (as defined by ASTM D1922) of at least 35 grams per mil are prepared by extruding a hot melt of a polyester having as its acid component at least 85 mole percent terephthalic acid or a condensable derivative thereof and as its glycol component at least 85 mole percent 1,4-butanediol or a condensable derivative thereof and quenching the film at a temperature below that at which greater than 1% haze (ASTM D1003) begins to form. The polyester, which preferably has an intrinsic viscosity of at least 0À8, may contain up to 15 mole percent ethylene glycol as its glycol component and 10 mole percent isophthalic acid as its acid component. Examples relate to the production of films having heat distortion temperatures up to 200‹ C. and Elmendorf tear strengths of up to and greater than 200 grams per mil. by melt extrusion of polytetramethylene terephthalates on to a water-cooled chill roll maintained at a temperature below 77‹ C.
GB4791570A 1969-10-09 1970-10-08 Polyester film Expired GB1314070A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86520069A 1969-10-09 1969-10-09
US6144070A 1970-08-05 1970-08-05

Publications (1)

Publication Number Publication Date
GB1314070A true GB1314070A (en) 1973-04-18

Family

ID=26741074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4791570A Expired GB1314070A (en) 1969-10-09 1970-10-08 Polyester film

Country Status (4)

Country Link
CA (1) CA965895A (en)
DE (1) DE2049538A1 (en)
GB (1) GB1314070A (en)
NL (1) NL7014880A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0287246A2 (en) * 1987-04-08 1988-10-19 Polyplastics Co. Ltd. Method of manufacturing polybutylene terephthalate resin films
US5132068A (en) * 1989-09-19 1992-07-21 Polyplastics Co., Ltd. Processes for producing transparent copolyester films

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408465B1 (en) * 1989-06-26 1994-03-02 Eastman Chemical Company Novel semi-crystalline polyesters, blends thereof with amorphous polyesters and powder coating compositions based on such blends
DE19528336A1 (en) * 1995-08-02 1997-02-06 Hoechst Ag Amorphous, transparent plate made of a crystallizable thermoplastic with high standard viscosity

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0287246A2 (en) * 1987-04-08 1988-10-19 Polyplastics Co. Ltd. Method of manufacturing polybutylene terephthalate resin films
EP0287246A3 (en) * 1987-04-08 1990-05-09 Polyplastics Co. Ltd. Method of manufacturing polybutylene terephthalate resin films
US5132068A (en) * 1989-09-19 1992-07-21 Polyplastics Co., Ltd. Processes for producing transparent copolyester films

Also Published As

Publication number Publication date
DE2049538A1 (en) 1971-04-22
NL7014880A (en) 1971-04-14
CA965895A (en) 1975-04-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee