GB954432A - Biaxial orientation of polyolefin film - Google Patents

Biaxial orientation of polyolefin film

Info

Publication number
GB954432A
GB954432A GB26156/60A GB2615660A GB954432A GB 954432 A GB954432 A GB 954432A GB 26156/60 A GB26156/60 A GB 26156/60A GB 2615660 A GB2615660 A GB 2615660A GB 954432 A GB954432 A GB 954432A
Authority
GB
United Kingdom
Prior art keywords
polyolefin film
biaxial orientation
film
polyolefin
reinflated
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
GB26156/60A
Inventor
William Frederick Underwood
Paul Henry Lindenmeyer
William Sacks
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Priority to GB26156/60A priority Critical patent/GB954432A/en
Publication of GB954432A publication Critical patent/GB954432A/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)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Crystalline biaxially oriented polyolefin film is obtained by first extruding the polyolefin in the form of a seamless tube which is cooled and collapsed, and is then reinflated by a second isolated gaseous bubble while heating and drawing. Specified polyolefins are the homopolymers, copolymers and terpolymers of C2 to C20 olefins, in particular polyethylene, polypropylene and a copolymer of 4-Me-1-pentene and 3-Me-1-butene. The film finds application in packaging. Specifications 471,590 and 654,550 are referred to.
GB26156/60A 1960-07-27 1960-07-27 Biaxial orientation of polyolefin film Expired GB954432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB26156/60A GB954432A (en) 1960-07-27 1960-07-27 Biaxial orientation of polyolefin film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26156/60A GB954432A (en) 1960-07-27 1960-07-27 Biaxial orientation of polyolefin film

Publications (1)

Publication Number Publication Date
GB954432A true GB954432A (en) 1964-04-08

Family

ID=10239246

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26156/60A Expired GB954432A (en) 1960-07-27 1960-07-27 Biaxial orientation of polyolefin film

Country Status (1)

Country Link
GB (1) GB954432A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456044A (en) * 1965-03-12 1969-07-15 Heinz Erich Pahlke Biaxial orientation
US3671617A (en) * 1968-11-30 1972-06-20 Mitsubishi Petrochemical Co Method of drawing thermoplastic synthetic resin film over a polyangular mandrel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456044A (en) * 1965-03-12 1969-07-15 Heinz Erich Pahlke Biaxial orientation
US3671617A (en) * 1968-11-30 1972-06-20 Mitsubishi Petrochemical Co Method of drawing thermoplastic synthetic resin film over a polyangular mandrel

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