JPS574741A - Manufacture of hollow container excellent in dimensional stability of mouth - Google Patents

Manufacture of hollow container excellent in dimensional stability of mouth

Info

Publication number
JPS574741A
JPS574741A JP7863380A JP7863380A JPS574741A JP S574741 A JPS574741 A JP S574741A JP 7863380 A JP7863380 A JP 7863380A JP 7863380 A JP7863380 A JP 7863380A JP S574741 A JPS574741 A JP S574741A
Authority
JP
Japan
Prior art keywords
hollow container
mouth
dimensional stability
manufacture
container excellent
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
JP7863380A
Other languages
Japanese (ja)
Inventor
Masaji Watanabe
Toshiaki Kawasumi
Kouji Mukuraguchi
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei 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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP7863380A priority Critical patent/JPS574741A/en
Publication of JPS574741A publication Critical patent/JPS574741A/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
    • 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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0063—After-treatment of articles without altering their shape; Apparatus therefor for changing crystallisation
    • 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 produce a hollow container excellent in the dimensional stability of the mouth, by heat treating the mouth under specified conditions. CONSTITUTION:In the case for producing a hollow container by biaxial stretching blow molding of a polyethylene terephthalate, the conditions expressed by the formulas Tg-30<=T<Tg (wherein T represents a heat treatment temperature, Tg represents the second-order transition point of the polyethylene terephthalate) and t>=(50/T)<0.8> (wherein t represents a heat treatment period in hour, and T represents the same as indicated above) should be satisfied simultaneously. Here, Tg is a value obtained by a differential scanning calorimeter (made by Parkin Ermer Co., DSC1 type) when it is heated from room temperature at 16 deg.C/min.
JP7863380A 1980-06-11 1980-06-11 Manufacture of hollow container excellent in dimensional stability of mouth Pending JPS574741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7863380A JPS574741A (en) 1980-06-11 1980-06-11 Manufacture of hollow container excellent in dimensional stability of mouth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7863380A JPS574741A (en) 1980-06-11 1980-06-11 Manufacture of hollow container excellent in dimensional stability of mouth

Publications (1)

Publication Number Publication Date
JPS574741A true JPS574741A (en) 1982-01-11

Family

ID=13667268

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7863380A Pending JPS574741A (en) 1980-06-11 1980-06-11 Manufacture of hollow container excellent in dimensional stability of mouth

Country Status (1)

Country Link
JP (1) JPS574741A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572811A (en) * 1978-06-29 1986-02-25 Yoshino Kogyosho Co., Ltd. Method for producing polyester containers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572811A (en) * 1978-06-29 1986-02-25 Yoshino Kogyosho Co., Ltd. Method for producing polyester containers

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