JPH0247337B2 - - Google Patents

Info

Publication number
JPH0247337B2
JPH0247337B2 JP57029487A JP2948782A JPH0247337B2 JP H0247337 B2 JPH0247337 B2 JP H0247337B2 JP 57029487 A JP57029487 A JP 57029487A JP 2948782 A JP2948782 A JP 2948782A JP H0247337 B2 JPH0247337 B2 JP H0247337B2
Authority
JP
Japan
Prior art keywords
cooling air
air outlet
resin
cooling
extrusion direction
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
JP57029487A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58147320A (ja
Inventor
Masakatsu Kimura
Yoshuki Mihara
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 JP57029487A priority Critical patent/JPS58147320A/ja
Publication of JPS58147320A publication Critical patent/JPS58147320A/ja
Publication of JPH0247337B2 publication Critical patent/JPH0247337B2/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)
JP57029487A 1982-02-25 1982-02-25 ポリプロピレン系フイルムの製造法 Granted JPS58147320A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57029487A JPS58147320A (ja) 1982-02-25 1982-02-25 ポリプロピレン系フイルムの製造法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57029487A JPS58147320A (ja) 1982-02-25 1982-02-25 ポリプロピレン系フイルムの製造法

Publications (2)

Publication Number Publication Date
JPS58147320A JPS58147320A (ja) 1983-09-02
JPH0247337B2 true JPH0247337B2 (enrdf_load_stackoverflow) 1990-10-19

Family

ID=12277428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57029487A Granted JPS58147320A (ja) 1982-02-25 1982-02-25 ポリプロピレン系フイルムの製造法

Country Status (1)

Country Link
JP (1) JPS58147320A (enrdf_load_stackoverflow)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52101260A (en) * 1976-02-20 1977-08-25 Yoshii Tetsukou Kk Device for cooling tube of inflation extruder
GB1560030A (en) * 1976-12-06 1980-01-30 Cole R J Air ring for the production of blown extruded film
JPS53146764A (en) * 1977-05-27 1978-12-20 Mitsui Petrochem Ind Ltd Film forming by inflation
JPS5429329U (enrdf_load_stackoverflow) * 1977-07-30 1979-02-26

Also Published As

Publication number Publication date
JPS58147320A (ja) 1983-09-02

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