JPH0551452B2 - - Google Patents

Info

Publication number
JPH0551452B2
JPH0551452B2 JP60162510A JP16251085A JPH0551452B2 JP H0551452 B2 JPH0551452 B2 JP H0551452B2 JP 60162510 A JP60162510 A JP 60162510A JP 16251085 A JP16251085 A JP 16251085A JP H0551452 B2 JPH0551452 B2 JP H0551452B2
Authority
JP
Japan
Prior art keywords
tubular body
molten resin
slit
bubble
cylindrical member
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 - Lifetime
Application number
JP60162510A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6221521A (ja
Inventor
Mikio Sato
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.)
Idemitsu Petrochemical Co Ltd
Original Assignee
Idemitsu Petrochemical Co 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
Application filed by Idemitsu Petrochemical Co Ltd filed Critical Idemitsu Petrochemical Co Ltd
Priority to JP60162510A priority Critical patent/JPS6221521A/ja
Publication of JPS6221521A publication Critical patent/JPS6221521A/ja
Publication of JPH0551452B2 publication Critical patent/JPH0551452B2/ja
Granted 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
    • 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
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
JP60162510A 1985-07-23 1985-07-23 インフレ−シヨンフイルムの製造法 Granted JPS6221521A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60162510A JPS6221521A (ja) 1985-07-23 1985-07-23 インフレ−シヨンフイルムの製造法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60162510A JPS6221521A (ja) 1985-07-23 1985-07-23 インフレ−シヨンフイルムの製造法

Publications (2)

Publication Number Publication Date
JPS6221521A JPS6221521A (ja) 1987-01-29
JPH0551452B2 true JPH0551452B2 (enrdf_load_html_response) 1993-08-02

Family

ID=15755992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60162510A Granted JPS6221521A (ja) 1985-07-23 1985-07-23 インフレ−シヨンフイルムの製造法

Country Status (1)

Country Link
JP (1) JPS6221521A (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207971A (en) * 1992-02-07 1993-05-04 Quantum Chemical Corporation Extrusion of wrinkle-free blown film from high modulus resin
JPH0760833A (ja) * 1993-08-23 1995-03-07 Mitsubishi Chem Corp インフレーション樹脂フィルムの成形方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5989123A (ja) * 1982-11-12 1984-05-23 Idemitsu Petrochem Co Ltd インフレ−シヨンフイルムの成形方法および成形装置

Also Published As

Publication number Publication date
JPS6221521A (ja) 1987-01-29

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