GB1295878A - - Google Patents

Info

Publication number
GB1295878A
GB1295878A GB1295878DA GB1295878A GB 1295878 A GB1295878 A GB 1295878A GB 1295878D A GB1295878D A GB 1295878DA GB 1295878 A GB1295878 A GB 1295878A
Authority
GB
United Kingdom
Prior art keywords
film
cooling
melt
stretching
die
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
Other languages
English (en)
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 filed Critical
Publication of GB1295878A publication Critical patent/GB1295878A/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
    • B29C48/03—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
GB1295878D 1968-12-23 1969-12-23 Expired GB1295878A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681816509 DE1816509A1 (de) 1968-12-23 1968-12-23 Verfahren zur Herstellung von tiefziehbaren Polyamid-Schlauchfolien

Publications (1)

Publication Number Publication Date
GB1295878A true GB1295878A (xx) 1972-11-08

Family

ID=5717165

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1295878D Expired GB1295878A (xx) 1968-12-23 1969-12-23

Country Status (7)

Country Link
BE (1) BE743612A (xx)
CA (1) CA922471A (xx)
DE (1) DE1816509A1 (xx)
FR (1) FR2026971A1 (xx)
GB (1) GB1295878A (xx)
NL (1) NL6919109A (xx)
SE (1) SE355523B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098556A2 (en) * 1982-07-02 1984-01-18 Union Carbide Corporation Process for forming film from low strain hardening polymers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098556A2 (en) * 1982-07-02 1984-01-18 Union Carbide Corporation Process for forming film from low strain hardening polymers
EP0098556A3 (en) * 1982-07-02 1985-10-30 Union Carbide Corporation Process for forming film from low strain hardening polymers

Also Published As

Publication number Publication date
NL6919109A (xx) 1970-06-25
SE355523B (xx) 1973-04-30
CA922471A (en) 1973-03-13
DE1816509A1 (de) 1970-06-25
BE743612A (xx) 1970-05-28
FR2026971A1 (xx) 1970-09-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees