CA1013113A - Biaxially stretching tubular polyethylene terephthalate films - Google Patents

Biaxially stretching tubular polyethylene terephthalate films

Info

Publication number
CA1013113A
CA1013113A CA177,862A CA177862A CA1013113A CA 1013113 A CA1013113 A CA 1013113A CA 177862 A CA177862 A CA 177862A CA 1013113 A CA1013113 A CA 1013113A
Authority
CA
Canada
Prior art keywords
polyethylene terephthalate
biaxially stretching
terephthalate films
tubular polyethylene
stretching tubular
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
CA177,862A
Other languages
English (en)
Other versions
CA177862S (en
Inventor
Ryohta Nohtomi
Tuyoshi Shigeyoshi
Masayoshi Sugiyama
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.)
Kohjin Co
Original Assignee
Kohjin 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 Kohjin Co filed Critical Kohjin Co
Application granted granted Critical
Publication of CA1013113A publication Critical patent/CA1013113A/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
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • 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)
CA177,862A 1973-05-17 1973-08-01 Biaxially stretching tubular polyethylene terephthalate films Expired CA1013113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48054144A JPS5148676B2 (de) 1973-05-17 1973-05-17

Publications (1)

Publication Number Publication Date
CA1013113A true CA1013113A (en) 1977-07-05

Family

ID=12962352

Family Applications (1)

Application Number Title Priority Date Filing Date
CA177,862A Expired CA1013113A (en) 1973-05-17 1973-08-01 Biaxially stretching tubular polyethylene terephthalate films

Country Status (3)

Country Link
US (1) US3880974A (de)
JP (1) JPS5148676B2 (de)
CA (1) CA1013113A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52135374A (en) * 1976-05-07 1977-11-12 Okura Industrial Co Ltd Simultaneous two dimension elongation of thermoplastic synthetic resin tube film
JPS5586719A (en) * 1978-12-25 1980-06-30 Chisso Eng Kk Manufacturing device for tubular biaxial stretching film
US4238443A (en) * 1979-08-09 1980-12-09 E. I. Du Pont De Nemours And Company Process for transversely stretching polyethylene terephthalate film
JPS56101834U (de) * 1979-12-29 1981-08-10
GB2112703B (en) * 1981-11-28 1985-08-07 Idemitsu Petrochemical Co Cooling extruded tubular plastics film
US4734245A (en) * 1985-01-30 1988-03-29 Idemitsu Petrochemical Co., Ltd. Method of producing biaxially oriented film of thermoplastic resin
EP0386759B1 (de) * 1989-03-10 1995-08-16 Idemitsu Petrochemical Co. Ltd. Verfahren zum Herstellen von biaxial orientierten Nylon-Folien

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578899A (en) * 1949-10-22 1951-12-18 Du Pont Superstretching polyester structures
GB954254A (en) * 1961-04-12 1964-04-02 Ici Ltd Improvements in or relating to linear organic thermoplastic film manufacture
US3231642A (en) * 1964-07-09 1966-01-25 Du Pont Extrusion and stretching of thermoplastic film

Also Published As

Publication number Publication date
JPS5148676B2 (de) 1976-12-22
US3880974A (en) 1975-04-29
JPS504164A (de) 1975-01-17

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