JPS57174216A - Production of stretch-blown container - Google Patents

Production of stretch-blown container

Info

Publication number
JPS57174216A
JPS57174216A JP5918581A JP5918581A JPS57174216A JP S57174216 A JPS57174216 A JP S57174216A JP 5918581 A JP5918581 A JP 5918581A JP 5918581 A JP5918581 A JP 5918581A JP S57174216 A JPS57174216 A JP S57174216A
Authority
JP
Japan
Prior art keywords
parison
time
temperature
stretch
blowing
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.)
Pending
Application number
JP5918581A
Other languages
Japanese (ja)
Inventor
Seiichi Hayashi
Takeshi Mamada
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.)
Kawamura Institute of Chemical Research
DIC Corp
Original Assignee
Kawamura Institute of Chemical Research
Dainippon Ink and Chemicals 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 Kawamura Institute of Chemical Research, Dainippon Ink and Chemicals Co Ltd filed Critical Kawamura Institute of Chemical Research
Priority to JP5918581A priority Critical patent/JPS57174216A/en
Publication of JPS57174216A publication Critical patent/JPS57174216A/en
Pending 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To reduce scatters between parisons, enhance stretch blowing properties and obtain the titled container with uniform product quality by a method wherein stretch blowing is conducted within a specified period of time after heat-treating and quenching a thermoplastic polyester made parison in specified conditions. CONSTITUTION:Before stretch-blowing the parison obtained by injection-molding or extruding a thermoplastic polyester containing ethylene terephthalate as a main constituent, the parison is heat treated at a such temperature T1 for a such period of time t1 as to satisfy the formulasI, II, where T1 is the heat treating temperature ( deg.C) and t1 is the heat treating time (sec). Next, the parison is qunched to a temperature T2 deg.C lower than the glass transition temperature Tg of the polyester, and then within such a period of time T2 as to satisfy the formula III where T3 is the holding temperature ( deg.C) of the parison after the quenching treatment, T3<Tg; t2 is the holding time (hr), the parison is subjected to stretch blowing to obtain the objective container.
JP5918581A 1981-04-21 1981-04-21 Production of stretch-blown container Pending JPS57174216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5918581A JPS57174216A (en) 1981-04-21 1981-04-21 Production of stretch-blown container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5918581A JPS57174216A (en) 1981-04-21 1981-04-21 Production of stretch-blown container

Publications (1)

Publication Number Publication Date
JPS57174216A true JPS57174216A (en) 1982-10-26

Family

ID=13106087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5918581A Pending JPS57174216A (en) 1981-04-21 1981-04-21 Production of stretch-blown container

Country Status (1)

Country Link
JP (1) JPS57174216A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05444A (en) * 1991-06-21 1993-01-08 Toyo Seikan Kaisha Ltd High orientation blow-molded vessel and manufacture thereof
JPH05443A (en) * 1991-06-21 1993-01-08 Toyo Seikan Kaisha Ltd High orientation blow-molded vessel and manufacture thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944073A (en) * 1972-09-01 1974-04-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944073A (en) * 1972-09-01 1974-04-25

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05444A (en) * 1991-06-21 1993-01-08 Toyo Seikan Kaisha Ltd High orientation blow-molded vessel and manufacture thereof
JPH05443A (en) * 1991-06-21 1993-01-08 Toyo Seikan Kaisha Ltd High orientation blow-molded vessel and manufacture thereof
JPH0739129B2 (en) * 1991-06-21 1995-05-01 東洋製罐株式会社 High stretch blow molded container and method of manufacturing the same
JPH0739130B2 (en) * 1991-06-21 1995-05-01 東洋製罐株式会社 High stretch blow molded container and method of manufacturing the same

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