DE1629580A1 - Verfahren - Google Patents

Verfahren

Info

Publication number
DE1629580A1
DE1629580A1 DE19661629580 DE1629580A DE1629580A1 DE 1629580 A1 DE1629580 A1 DE 1629580A1 DE 19661629580 DE19661629580 DE 19661629580 DE 1629580 A DE1629580 A DE 1629580A DE 1629580 A1 DE1629580 A1 DE 1629580A1
Authority
DE
Germany
Prior art keywords
tubular film
temperature
unstretched
film
stretching
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.)
Pending
Application number
DE19661629580
Other languages
German (de)
English (en)
Inventor
Fallwell Ernest Lynwood
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 DE1629580A1 publication Critical patent/DE1629580A1/de
Pending 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
    • B29C48/03—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
    • B29C48/03—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
    • 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)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
DE19661629580 1965-02-12 1966-02-11 Verfahren Pending DE1629580A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43226865A 1965-02-12 1965-02-12

Publications (1)

Publication Number Publication Date
DE1629580A1 true DE1629580A1 (de) 1971-01-28

Family

ID=23715440

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661629580 Pending DE1629580A1 (de) 1965-02-12 1966-02-11 Verfahren

Country Status (3)

Country Link
DE (1) DE1629580A1 (US07582779-20090901-C00044.png)
GB (1) GB1114802A (US07582779-20090901-C00044.png)
NL (1) NL6600745A (US07582779-20090901-C00044.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189922A2 (en) * 1985-01-30 1986-08-06 Idemitsu Petrochemical Co. Ltd. Method of producing biaxially oriented film of thermoplastic resin and apparatus therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189922A2 (en) * 1985-01-30 1986-08-06 Idemitsu Petrochemical Co. Ltd. Method of producing biaxially oriented film of thermoplastic resin and apparatus therefor
EP0189922A3 (en) * 1985-01-30 1987-01-14 Idemitsu Petrochemical Company Limited Method of producing biaxially oriented film of thermoplastic resin and apparatus therefor

Also Published As

Publication number Publication date
NL6600745A (US07582779-20090901-C00044.png) 1966-03-25
GB1114802A (en) 1968-05-22

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