GB1436788A - Manufacture of polymeric fiom - Google Patents

Manufacture of polymeric fiom

Info

Publication number
GB1436788A
GB1436788A GB3349373A GB3349373A GB1436788A GB 1436788 A GB1436788 A GB 1436788A GB 3349373 A GB3349373 A GB 3349373A GB 3349373 A GB3349373 A GB 3349373A GB 1436788 A GB1436788 A GB 1436788A
Authority
GB
United Kingdom
Prior art keywords
film
molten
pinning
polymeric
passing
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
GB3349373A
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.)
Agfa Gevaert NV
Agfa Gevaert AG
Original Assignee
Agfa Gevaert NV
Agfa Gevaert AG
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 Agfa Gevaert NV, Agfa Gevaert AG filed Critical Agfa Gevaert NV
Priority to GB3349373A priority Critical patent/GB1436788A/en
Priority to BE1006013A priority patent/BE816025A/en
Priority to DE19742428432 priority patent/DE2428432A1/en
Priority to CA202,225A priority patent/CA1044867A/en
Priority to FR7420862A priority patent/FR2236639B1/fr
Priority to JP49068656A priority patent/JPS5039356A/ja
Priority to LU70468A priority patent/LU70468A1/xx
Publication of GB1436788A publication Critical patent/GB1436788A/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
    • 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
    • B29C48/915—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means
    • B29C48/9165—Electrostatic pinning
    • 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
    • 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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

1436788 Cooling polymeric film; electrostatic pinning AGFA-GEVAERT 12 June 1974 [13 July 1973] 33493/73 Headings B5B and B5A Molten film is cooled by passing a curtain of the film on to a driven smooth cooling surface 17, electrostatically pinning the film to the said surface, passing the film in a molten condition to a second cooling surface 18 so that the said surface contacts the opposite face of the film and electrostatically pinning the film to said surface. The molten film, especially polyethylene terephthalate is extruded from an extruder 10; the charge on 17 and that on 18 is supplied by potential sources 19 and 20, e.g. by corona discharge and the quenched film is taken off over non-driven roller 16 for further treatment, e.g. stretching and heat setting.
GB3349373A 1973-07-13 1973-07-13 Manufacture of polymeric fiom Expired GB1436788A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB3349373A GB1436788A (en) 1973-07-13 1973-07-13 Manufacture of polymeric fiom
BE1006013A BE816025A (en) 1973-07-13 1974-06-07 METHOD OF MANUFACTURING POLYMERIC FILM WITH IMPROVED SURFACE QUALITY
DE19742428432 DE2428432A1 (en) 1973-07-13 1974-06-12 METHOD FOR MANUFACTURING POLYMER FILM
CA202,225A CA1044867A (en) 1973-07-13 1974-06-12 Method for the production of polymeric film
FR7420862A FR2236639B1 (en) 1973-07-13 1974-06-13
JP49068656A JPS5039356A (en) 1973-07-13 1974-06-14
LU70468A LU70468A1 (en) 1973-07-13 1974-07-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3349373A GB1436788A (en) 1973-07-13 1973-07-13 Manufacture of polymeric fiom

Publications (1)

Publication Number Publication Date
GB1436788A true GB1436788A (en) 1976-05-26

Family

ID=10353691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3349373A Expired GB1436788A (en) 1973-07-13 1973-07-13 Manufacture of polymeric fiom

Country Status (7)

Country Link
JP (1) JPS5039356A (en)
BE (1) BE816025A (en)
CA (1) CA1044867A (en)
DE (1) DE2428432A1 (en)
FR (1) FR2236639B1 (en)
GB (1) GB1436788A (en)
LU (1) LU70468A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1020280A2 (en) * 1999-01-13 2000-07-19 Toray Industries, Inc. Method and apparatus for producing thermoplastic resin sheet
CN105612046A (en) * 2013-10-02 2016-05-25 多克萨塑料韦纳穆公司 Plastic film and method for production thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3915057A1 (en) * 1989-05-09 1990-11-15 Kaupert Guenter Dr Ing Extrusion of thin section plastics film - with stress free, uniform thickness, achieved using smoothing roller with roughened surface between extruder and chill roll

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1020280A2 (en) * 1999-01-13 2000-07-19 Toray Industries, Inc. Method and apparatus for producing thermoplastic resin sheet
EP1020280A3 (en) * 1999-01-13 2000-11-15 Toray Industries, Inc. Method and apparatus for producing thermoplastic resin sheet
CN105612046A (en) * 2013-10-02 2016-05-25 多克萨塑料韦纳穆公司 Plastic film and method for production thereof
EP2857183B1 (en) * 2013-10-02 2018-01-31 Doxa Plast i Värnamo AB Plastic film and a method for production thereof

Also Published As

Publication number Publication date
FR2236639A1 (en) 1975-02-07
LU70468A1 (en) 1975-12-09
FR2236639B1 (en) 1977-03-11
CA1044867A (en) 1978-12-26
BE816025A (en) 1974-12-09
JPS5039356A (en) 1975-04-11
DE2428432A1 (en) 1975-01-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee