CA940680A - Extruding thermoplastic tubular film and cooling collapsing elements - Google Patents

Extruding thermoplastic tubular film and cooling collapsing elements

Info

Publication number
CA940680A
CA940680A CA064,842A CA64842A CA940680A CA 940680 A CA940680 A CA 940680A CA 64842 A CA64842 A CA 64842A CA 940680 A CA940680 A CA 940680A
Authority
CA
Canada
Prior art keywords
cooling
tubular film
thermoplastic tubular
extruding thermoplastic
collapsing elements
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
CA064,842A
Other languages
English (en)
Inventor
Peter H. Van Kralingen
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Application granted granted Critical
Publication of CA940680A publication Critical patent/CA940680A/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
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular 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
    • B29C48/03—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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
CA064,842A 1968-12-31 1969-10-14 Extruding thermoplastic tubular film and cooling collapsing elements Expired CA940680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB61899/68A GB1282283A (en) 1968-12-31 1968-12-31 The manufacture of films from an organic thermoplastic polymer

Publications (1)

Publication Number Publication Date
CA940680A true CA940680A (en) 1974-01-29

Family

ID=10487611

Family Applications (1)

Application Number Title Priority Date Filing Date
CA064,842A Expired CA940680A (en) 1968-12-31 1969-10-14 Extruding thermoplastic tubular film and cooling collapsing elements

Country Status (8)

Country Link
US (1) US3700763A (de)
BE (1) BE740979A (de)
CA (1) CA940680A (de)
CH (1) CH497973A (de)
DE (1) DE1956465A1 (de)
GB (1) GB1282283A (de)
NL (1) NL6916053A (de)
SE (1) SE353260B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3784347A (en) * 1970-02-05 1974-01-08 Phillips Petroleum Co Blown film tube collapsing
US3852386A (en) * 1970-12-21 1974-12-03 Dow Chemical Co Manufacture of film having formed fastener means therein
GB1533306A (en) * 1976-08-13 1978-11-22 Ici Ltd Cooling thermoplastic tubes
EP0115804B1 (de) * 1983-02-04 1987-03-25 Unilever N.V. Verfahren zum Herstellen einer Weichkunststoffolie
US5778598A (en) * 1992-10-27 1998-07-14 U.S. Polymers, Inc. Shutter door assembly
US5342187A (en) * 1992-10-27 1994-08-30 U.S. Polymers, Inc. Extrusion system having after/former means for reshaping tube of extrudant
ES2758777T3 (es) * 2016-03-21 2020-05-06 Collin Lab & Pilot Solutions Gmbh Dispositivo y procedimiento para el enfriado rápido de extruidos
ES2980965T3 (es) 2016-09-28 2024-10-03 Dow Global Technologies Llc Película multicapa y bolsa con la misma

Also Published As

Publication number Publication date
SE353260B (de) 1973-01-29
CH497973A (de) 1970-10-31
BE740979A (de) 1970-04-29
US3700763A (en) 1972-10-24
NL6916053A (de) 1970-07-02
DE1956465A1 (de) 1970-07-16
GB1282283A (en) 1972-07-19

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