JPS54146870A - Blow molded article of polyester - Google Patents

Blow molded article of polyester

Info

Publication number
JPS54146870A
JPS54146870A JP5509378A JP5509378A JPS54146870A JP S54146870 A JPS54146870 A JP S54146870A JP 5509378 A JP5509378 A JP 5509378A JP 5509378 A JP5509378 A JP 5509378A JP S54146870 A JPS54146870 A JP S54146870A
Authority
JP
Japan
Prior art keywords
shoulder
polyester
tube
molded article
dome
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
JP5509378A
Other languages
Japanese (ja)
Other versions
JPS6221609B2 (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 JP5509378A priority Critical patent/JPS54146870A/en
Publication of JPS54146870A publication Critical patent/JPS54146870A/en
Publication of JPS6221609B2 publication Critical patent/JPS6221609B2/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
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • 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
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • 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
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0811—Wall thickness
    • B29C2949/0817—Wall thickness of the body
    • 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
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/082—Diameter
    • B29C2949/0826—Diameter of the body
    • 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
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/082—Diameter
    • B29C2949/0827—Diameter of 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
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0829—Height, length
    • B29C2949/0836—Height, length of 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
    • B29C2949/26—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
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • B29K2105/258—Tubular

Abstract

PURPOSE:Title molded article that is formed by melt closing the one end of polyester open tube into a dome with specifically shaped shoulder, thus preventing the crack formation on the surface and giving beautiful appearance. CONSTITUTION:When an open tube of polyester containing polyethylene terephthalate as major recurring structural units is heated up to the molding temperature on both ends to form the one end 1 into a dome with specifically shaped shoulder by fusing between mold 2 and mandrel 3 and the other end into the neck with desired shape, a shoulder satisfying equations : 0.7>=d<2>1/d<2>0>=5, 2>=h/a>=1 (d0 is the outer diameter of tube, d1 is the diameter of the shoulder end, h is height of the shoulder, a is the wall thickness of the tube) is formed at the part of the bottom. Thereby, the crack formation is prevented on the surface.
JP5509378A 1978-05-10 1978-05-10 Blow molded article of polyester Granted JPS54146870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5509378A JPS54146870A (en) 1978-05-10 1978-05-10 Blow molded article of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5509378A JPS54146870A (en) 1978-05-10 1978-05-10 Blow molded article of polyester

Publications (2)

Publication Number Publication Date
JPS54146870A true JPS54146870A (en) 1979-11-16
JPS6221609B2 JPS6221609B2 (en) 1987-05-13

Family

ID=12989114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5509378A Granted JPS54146870A (en) 1978-05-10 1978-05-10 Blow molded article of polyester

Country Status (1)

Country Link
JP (1) JPS54146870A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129122A (en) * 1980-03-17 1981-10-09 Mitsubishi Plastics Ind Ltd Manufacture of shrinkable tube with zenith
JPH02231123A (en) * 1989-03-06 1990-09-13 Toyo Seikan Kaisha Ltd Draw-molded container and preparation thereof
WO2008041186A2 (en) 2006-10-06 2008-04-10 Concordia Development S.R.L. Plastic preform where closed end is provided with a hollow appendix
EP2316626A1 (en) * 2009-10-27 2011-05-04 La Seda De Barcelona S.A. Preform for making a blow-molded container and having a concave gate portion, injection mold stack and process for making the preform, process for making the container and container
FR3085294A1 (en) * 2018-09-04 2020-03-06 Sidel Participations PREFORM FOR PLASTIC CONTAINER

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129122A (en) * 1980-03-17 1981-10-09 Mitsubishi Plastics Ind Ltd Manufacture of shrinkable tube with zenith
JPH02231123A (en) * 1989-03-06 1990-09-13 Toyo Seikan Kaisha Ltd Draw-molded container and preparation thereof
RU2469845C2 (en) * 2006-10-06 2012-12-20 Конкордиа Девелопмент С.Р.Л. Perfected plastic workpiece
WO2008041186A3 (en) * 2006-10-06 2009-05-07 Concordia Dev Srl Plastic preform where closed end is provided with a hollow appendix
JP2010505653A (en) * 2006-10-06 2010-02-25 コンコーディア デベロップメント ソシエタ レスポンサビリタ リミタータ Improved plastic preform
AU2007303824B2 (en) * 2006-10-06 2012-07-05 Concordia Development S.R.L. Plastic preform where closed end is provided with a hollow appendix
EP2439032A3 (en) * 2006-10-06 2012-11-07 Concordia Development S.R.L. Plastic preform with a hollow appendix at the closed end and blow moulding method for manufacturing hollow bodies
WO2008041186A2 (en) 2006-10-06 2008-04-10 Concordia Development S.R.L. Plastic preform where closed end is provided with a hollow appendix
JP2013078951A (en) * 2006-10-06 2013-05-02 Concordia Development Srl Improved plastic preform
US9492950B2 (en) 2006-10-06 2016-11-15 Concordia Development S.R.L. Plastic preform
EP2316626A1 (en) * 2009-10-27 2011-05-04 La Seda De Barcelona S.A. Preform for making a blow-molded container and having a concave gate portion, injection mold stack and process for making the preform, process for making the container and container
WO2011051185A1 (en) * 2009-10-27 2011-05-05 La Seda De Barcelona S.A Preform for making a blow -molded container and having a concave gate portion, injection mold stack and process for making the preform, process for making the container and container
FR3085294A1 (en) * 2018-09-04 2020-03-06 Sidel Participations PREFORM FOR PLASTIC CONTAINER
WO2020049235A1 (en) * 2018-09-04 2020-03-12 Sidel Participations Preform for a container made of plastic material
US11731315B2 (en) 2018-09-04 2023-08-22 Sidel Participations Preform for a container made of plastic material

Also Published As

Publication number Publication date
JPS6221609B2 (en) 1987-05-13

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