JPS54155262A - Polyester blow molded article - Google Patents

Polyester blow molded article

Info

Publication number
JPS54155262A
JPS54155262A JP6480678A JP6480678A JPS54155262A JP S54155262 A JPS54155262 A JP S54155262A JP 6480678 A JP6480678 A JP 6480678A JP 6480678 A JP6480678 A JP 6480678A JP S54155262 A JPS54155262 A JP S54155262A
Authority
JP
Japan
Prior art keywords
tube
molded article
blow molded
polyester
diameter
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.)
Granted
Application number
JP6480678A
Other languages
Japanese (ja)
Other versions
JPS6034443B2 (en
Inventor
Takashige Kato
Yoshio Toyoda
Shigekazu Terada
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.)
Nippon Ester Co Ltd
Original Assignee
Nippon Ester 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 Nippon Ester Co Ltd filed Critical Nippon Ester Co Ltd
Priority to JP53064806A priority Critical patent/JPS6034443B2/en
Publication of JPS54155262A publication Critical patent/JPS54155262A/en
Publication of JPS6034443B2 publication Critical patent/JPS6034443B2/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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/078—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the bottom
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • 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)
  • Geometry (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 prevent cracking of the title blow molded article having a dome-like bottom part, by melting and closing one end of a polyester tube, while controlling the ratio of the diameter of the end of the tube in the bottom to the outer diameter of the tube above a specific value. CONSTITUTION:A polyester wherein the main recurring unit is polyethylene terephthalate, is extrusion molded or injection molded to an open-ended tube having definite outer and inner diameters and length. One end of the tube 1 is heated to the molding temperature, bent with a mold 4 and a mandrel 5 along the surface of the mold 4, welded and closed to form a bottom. The molding conditions are controlled to give d0 and d1 which satisfy the equation d0/d1>=0.4, wherein d0 is the diameter of the end of the tube in the bottom and d1 is the outer diameter of the tube. A blow molded article free from crack, and having excellent appearance can be obtained by this process.
JP53064806A 1978-05-30 1978-05-30 Method for manufacturing polyester preform Expired JPS6034443B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53064806A JPS6034443B2 (en) 1978-05-30 1978-05-30 Method for manufacturing polyester preform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53064806A JPS6034443B2 (en) 1978-05-30 1978-05-30 Method for manufacturing polyester preform

Publications (2)

Publication Number Publication Date
JPS54155262A true JPS54155262A (en) 1979-12-07
JPS6034443B2 JPS6034443B2 (en) 1985-08-08

Family

ID=13268843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53064806A Expired JPS6034443B2 (en) 1978-05-30 1978-05-30 Method for manufacturing polyester preform

Country Status (1)

Country Link
JP (1) JPS6034443B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02198821A (en) * 1989-01-27 1990-08-07 Toyo Seikan Kaisha Ltd Preform and method and apparatus for molding crystalline part of said preform
JPH02305620A (en) * 1989-05-22 1990-12-19 Toyo Seikan Kaisha Ltd Hollow pet vessel and its manufacture
JP2011506131A (en) * 2007-12-05 2011-03-03 フイナ・テクノロジー・インコーポレーテツド Preform design for injection stretch blow molding

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02198821A (en) * 1989-01-27 1990-08-07 Toyo Seikan Kaisha Ltd Preform and method and apparatus for molding crystalline part of said preform
JPH02305620A (en) * 1989-05-22 1990-12-19 Toyo Seikan Kaisha Ltd Hollow pet vessel and its manufacture
JP2011506131A (en) * 2007-12-05 2011-03-03 フイナ・テクノロジー・インコーポレーテツド Preform design for injection stretch blow molding

Also Published As

Publication number Publication date
JPS6034443B2 (en) 1985-08-08

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