GB1313448A - Process and apparatus for quenching polymer films - Google Patents

Process and apparatus for quenching polymer films

Info

Publication number
GB1313448A
GB1313448A GB5268971A GB5268971A GB1313448A GB 1313448 A GB1313448 A GB 1313448A GB 5268971 A GB5268971 A GB 5268971A GB 5268971 A GB5268971 A GB 5268971A GB 1313448 A GB1313448 A GB 1313448A
Authority
GB
United Kingdom
Prior art keywords
cooling
tank
plenum chamber
film
casting drum
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
GB5268971A
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 GB1313448A publication Critical patent/GB1313448A/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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/24—Calendering
    • 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
    • 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
    • B29C48/917—Cooling of flat articles, e.g. using specially adapted supporting means with means for improving the adhesion to the supporting means by applying pressurised gas to the surface of the flat article
    • 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
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

1313448 Film quenching apparatus E I DU PONT DE NEMOURS & CO 12 Nov 1971 [12 Nov 1970] 52689/71 Heading B5B In a process for producing quenched films of synthetic organic polymers molten polymer 2 is extruded from a die 1 on to the surface of an internally cooled casting drum 4 and is passed successively through a blast of cooling gas from plenum chamber 6; between a nip formed between calender roll 3 and drum 4, through another blast of cooling gas from a second plenum chamber (8); through a nip formed between a chilling roll 10, which dips into cooling tank 7 and is dried prior to contact with the film by air knife 11, and casting drum 4; and into cooling tank 7 which contains a liquid coolant, the cooled film being surface-dried by air knife 12; and by gas from a third plenum chamber 6 prior to being stripped from the casting drum by stripping roll 5. As illustrated the liquid coolant is preferably agitated in the quenching tank by being continuously recycled through lateral conduits 14, manifold 13 and the tank overflow system. Preferred cooling liquids are water and a water-ethylene glycol mixture. Examples relate to the production of haze-free polyethylene terephthalate films.
GB5268971A 1970-11-12 1971-11-12 Process and apparatus for quenching polymer films Expired GB1313448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8891170A 1970-11-12 1970-11-12

Publications (1)

Publication Number Publication Date
GB1313448A true GB1313448A (en) 1973-04-11

Family

ID=22214231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5268971A Expired GB1313448A (en) 1970-11-12 1971-11-12 Process and apparatus for quenching polymer films

Country Status (6)

Country Link
JP (1) JPS5336506B1 (en)
BE (1) BE775240A (en)
DE (1) DE2156403A1 (en)
FR (1) FR2113924B1 (en)
GB (1) GB1313448A (en)
LU (1) LU64228A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2960815B1 (en) * 2010-06-02 2012-05-25 Jean Pierre Darlet COOLING ASSEMBLY OF A FILM OF SYNTHETIC MATERIAL
CN103085251B (en) * 2011-11-02 2015-02-11 中国石油化工股份有限公司 Device and method for extrusion casting, and biaxial tensile system and method for plastic film

Also Published As

Publication number Publication date
FR2113924B1 (en) 1977-08-05
FR2113924A1 (en) 1972-06-30
DE2156403A1 (en) 1972-05-18
BE775240A (en) 1972-05-12
JPS5336506B1 (en) 1978-10-03
LU64228A1 (en) 1972-08-03

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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