GB1303257A - - Google Patents

Info

Publication number
GB1303257A
GB1303257A GB6270769A GB1303257DA GB1303257A GB 1303257 A GB1303257 A GB 1303257A GB 6270769 A GB6270769 A GB 6270769A GB 1303257D A GB1303257D A GB 1303257DA GB 1303257 A GB1303257 A GB 1303257A
Authority
GB
United Kingdom
Prior art keywords
film
stretching
reduced
coefficient
isstated
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
GB6270769A
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 GB1303257A publication Critical patent/GB1303257A/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
    • B29C48/03—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
GB6270769A 1969-12-23 1969-12-23 Expired GB1303257A (https=)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6270769 1969-12-23

Publications (1)

Publication Number Publication Date
GB1303257A true GB1303257A (https=) 1973-01-17

Family

ID=10488406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6270769A Expired GB1303257A (https=) 1969-12-23 1969-12-23

Country Status (8)

Country Link
BE (1) BE759188A (https=)
CA (1) CA926574A (https=)
CH (1) CH541405A (https=)
DE (1) DE2057690C3 (https=)
FR (1) FR2072276A5 (https=)
GB (1) GB1303257A (https=)
LU (1) LU61765A1 (https=)
NL (1) NL7017388A (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54137076A (en) * 1978-04-17 1979-10-24 Unitika Ltd Manufacturing of biaxially oriented thermoplastic polyester film
JPS5766936A (en) * 1980-10-15 1982-04-23 Teijin Ltd Polyester film

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899713A (en) * 1959-08-18 Orientation of polyethylene
US2823421A (en) * 1952-05-12 1958-02-18 Du Pont Stretching of polyethylene terephthalate film
DE1264746B (de) * 1962-09-11 1968-03-28 Nihonbashi Muromachi Verfahren zur Herstellung von thermoplastischen Kunststoffolien mit rauher Oberflaeche

Also Published As

Publication number Publication date
DE2057690A1 (de) 1971-07-01
FR2072276A5 (https=) 1971-09-24
CH541405A (de) 1973-09-15
NL7017388A (https=) 1971-06-25
LU61765A1 (https=) 1971-11-08
DE2057690C3 (de) 1981-03-12
DE2057690B2 (de) 1980-07-24
BE759188A (nl) 1971-05-21
CA926574A (en) 1973-05-22

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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