GB1057077A - Improvements in the orientation of polypropylene film or ribbon - Google Patents

Improvements in the orientation of polypropylene film or ribbon

Info

Publication number
GB1057077A
GB1057077A GB3660664A GB3660664A GB1057077A GB 1057077 A GB1057077 A GB 1057077A GB 3660664 A GB3660664 A GB 3660664A GB 3660664 A GB3660664 A GB 3660664A GB 1057077 A GB1057077 A GB 1057077A
Authority
GB
United Kingdom
Prior art keywords
film
roller
drawn
temperature
cooling
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
GB3660664A
Inventor
Denis James Henry Sandiford
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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
Priority to BE669312D priority Critical patent/BE669312A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3660664A priority patent/GB1057077A/en
Priority to NL6511608A priority patent/NL6511608A/xx
Priority to SE11596/65A priority patent/SE311082B/xx
Priority to ES0317145A priority patent/ES317145A1/en
Priority to CH1243765A priority patent/CH437757A/en
Priority to DE19651504421 priority patent/DE1504421B2/en
Priority to FI214865A priority patent/FI44708C/en
Priority to LU49450A priority patent/LU49450A1/xx
Priority to DK458665A priority patent/DK115664B/en
Publication of GB1057077A publication Critical patent/GB1057077A/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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed

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)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

1,057,077. Drawing films. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 24, 1965 [Sept. 7, 1964], No. 36606/64. Heading B5B. A film or ribbon of a polymeric composition comprising polypropylene is drawn in one direction at least 6 times its original length at a draw rate which is at least 70,000% per minute, and which may be e.g. 1,000,000% per minute. The film may be drawn between two rollers set close together (Figs. 1 and 2, not shown) the first roller 3 or 9 heating the film to drawing temperature with or without ancillary infra-red heating 10<SP>1</SP> and 10<SP>11</SP> and the second roller 4 cooling it to below drawing temperature; or the film may pass through a bath 11 of a cooling medium, e.g. water, in which the second roller 12 is partly immersed. The above two rollers may be placed between or form part of nip or capstan roller systems. In another method (Fig. 3, not, shown) the film is heated to a temperature below the draw temperature by the feed roller 14 with or without ancillary infrared heaters 20 and 21. and shortly before reaching the cooling roller is heated by a concentrated beam of rays from an infra-red heater 16. The film before treatment may be in smectic or crystalline form. The resultant oriented film has high strength in the direction of drawn and adequate strength in the transverse direction; it may show no tendency to fibrillation in the transverse direction. " Polypropylene " includes propylene co-polymers, e.g. with ethylene; the polymer may contain additives, e.g. dyes, pigments, antistatic,agents. antiblocking agents and oxidants and modifiers, e.g. polyterpenes.
GB3660664A 1964-09-07 1964-09-07 Improvements in the orientation of polypropylene film or ribbon Expired GB1057077A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BE669312D BE669312A (en) 1964-09-07
GB3660664A GB1057077A (en) 1964-09-07 1964-09-07 Improvements in the orientation of polypropylene film or ribbon
NL6511608A NL6511608A (en) 1964-09-07 1965-09-06
SE11596/65A SE311082B (en) 1964-09-07 1965-09-06
ES0317145A ES317145A1 (en) 1964-09-07 1965-09-06 Improvements in the orientation of polypropylene film or ribbon
CH1243765A CH437757A (en) 1964-09-07 1965-09-07 Process for orienting a polypropylene-containing film or tape, as well as film or tape obtained by this process and its use for wrapping objects
DE19651504421 DE1504421B2 (en) 1964-09-07 1965-09-07 PROCESS FOR MANUFACTURING UNIAXIAL ORIENTED POLYPROPYLENE FILMS OR TAPES
FI214865A FI44708C (en) 1964-09-07 1965-09-07 A method of making a unidirectionally oriented film.
LU49450A LU49450A1 (en) 1964-09-07 1965-09-07
DK458665A DK115664B (en) 1964-09-07 1965-09-07 Method of stretching polypropylene films or tapes.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3660664A GB1057077A (en) 1964-09-07 1964-09-07 Improvements in the orientation of polypropylene film or ribbon

Publications (1)

Publication Number Publication Date
GB1057077A true GB1057077A (en) 1967-02-01

Family

ID=10389663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3660664A Expired GB1057077A (en) 1964-09-07 1964-09-07 Improvements in the orientation of polypropylene film or ribbon

Country Status (9)

Country Link
BE (1) BE669312A (en)
CH (1) CH437757A (en)
DE (1) DE1504421B2 (en)
DK (1) DK115664B (en)
ES (1) ES317145A1 (en)
FI (1) FI44708C (en)
GB (1) GB1057077A (en)
LU (1) LU49450A1 (en)
NL (1) NL6511608A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2036624A1 (en) * 1969-07-23 1971-02-04 E I Du Pont de Nemours and Co , Wilmington, Del (V St A ) Method and device for stretching polymer film
DE2152168A1 (en) * 1970-10-30 1972-05-04 Agfa Gevaert Ag Method and device for longitudinal stretching of a polymer film
EP0022278A1 (en) * 1979-04-11 1981-01-14 Agfa-Gevaert N.V. Method and apparatus for longitudinally stretching a substantially amorphous polyethylene terephthalate film
US6436135B1 (en) 1974-10-24 2002-08-20 David Goldfarb Prosthetic vascular graft
WO2022195590A1 (en) * 2021-03-15 2022-09-22 Tama group Baler twine and method for twining bales

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558923C2 (en) * 1975-01-08 1982-12-16 Imperial Chemical Industries Ltd., London Device for the continuous longitudinal stretching of a polymeric plastic film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2036624A1 (en) * 1969-07-23 1971-02-04 E I Du Pont de Nemours and Co , Wilmington, Del (V St A ) Method and device for stretching polymer film
DE2152168A1 (en) * 1970-10-30 1972-05-04 Agfa Gevaert Ag Method and device for longitudinal stretching of a polymer film
US6436135B1 (en) 1974-10-24 2002-08-20 David Goldfarb Prosthetic vascular graft
EP0022278A1 (en) * 1979-04-11 1981-01-14 Agfa-Gevaert N.V. Method and apparatus for longitudinally stretching a substantially amorphous polyethylene terephthalate film
WO2022195590A1 (en) * 2021-03-15 2022-09-22 Tama group Baler twine and method for twining bales

Also Published As

Publication number Publication date
FI44708B (en) 1971-08-31
FI44708C (en) 1971-12-10
DK115664B (en) 1969-10-27
DE1504421A1 (en) 1969-04-24
CH437757A (en) 1967-06-15
DE1504421B2 (en) 1971-07-01
NL6511608A (en) 1966-03-08
LU49450A1 (en) 1965-11-08
ES317145A1 (en) 1966-08-01
BE669312A (en)

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