GB1343732A - Manufacture of hollow bodies of synthetic resinous material - Google Patents

Manufacture of hollow bodies of synthetic resinous material

Info

Publication number
GB1343732A
GB1343732A GB2253471A GB2253471A GB1343732A GB 1343732 A GB1343732 A GB 1343732A GB 2253471 A GB2253471 A GB 2253471A GB 2253471 A GB2253471 A GB 2253471A GB 1343732 A GB1343732 A GB 1343732A
Authority
GB
United Kingdom
Prior art keywords
preform
mould
different
thermoplastics
wall thickness
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
Application number
GB2253471A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1343732A publication Critical patent/GB1343732A/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • 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
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • 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
    • B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
    • B29C49/6445—Thermal conditioning of preforms characterised by temperature differential through the preform length
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C2045/7343—Heating or cooling of the mould heating or cooling different mould parts at different temperatures
    • 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
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

1343732 Forming hollow bodies; biaxial stretching H HENCH Jnr 19 April 1971 [25 Feb 1970] 22534/71 Heading B5A Hollow thermoplastics bodies are formed by a method including biaxial stretching in the thermoelastic range of a moulded preform having a temperature gradient in the longitudinal direction in the region at which it is stretched, the gradient having one sign where the preform wall thickness increases in one longitudinal direction of the preform, and the opposite sign where the preform wall thickness decreases in the same direction. The temperature difference between the ends of the preform may be 6-20‹ C., according to the degree of crystallinity of the thermoplastics. The preform may be formed by injection moulding and the injection mould may be chilled. A single, constant temperature cooling medium may be used or different cooling media at different temperatures may be used to cool different zones of the mould. Alternatively, different zones of the mould may have a different thermal conductivity or the cooling ducts therein may have a different cross-section or be spaced differently from the mould cavity. After establishing the desired temperature gradient, the preform is biaxially stretched by blow-moulding. The preform may alternatively be formed by pressing or casting, a separate chill mould being used.
GB2253471A 1970-02-25 1971-04-19 Manufacture of hollow bodies of synthetic resinous material Expired GB1343732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH252770A CH507802A (en) 1970-02-25 1970-02-25 Process and injection mold for the production of hollow bodies from thermoplastics

Publications (1)

Publication Number Publication Date
GB1343732A true GB1343732A (en) 1974-01-16

Family

ID=4235797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2253471A Expired GB1343732A (en) 1970-02-25 1971-04-19 Manufacture of hollow bodies of synthetic resinous material

Country Status (5)

Country Link
CH (1) CH507802A (en)
DE (1) DE2108774A1 (en)
FR (1) FR2080760B1 (en)
GB (1) GB1343732A (en)
NL (1) NL7102479A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205063A (en) * 1987-05-22 1988-11-30 Clarke R & Co Ltd Moulded plastics articles
GB2295984A (en) * 1994-12-13 1996-06-19 Werner Kotzab Method for tempering an injection moulding tool and injection moulding tool for performing the method
WO2006047429A1 (en) * 2004-10-22 2006-05-04 Advanced Plastics Technologies, Ltd. Apparatus and method of molding preforms having a crystalline neck
FR2924046A1 (en) * 2007-11-23 2009-05-29 Oreal Blow mold for e.g. shampoo storing and distributing container, has cooling channel with profile similar to that of cavity and located at constant distance from cavity, where channel is provided in high thermal conductivity cooling zone
CN114410082A (en) * 2021-12-28 2022-04-29 湖南工业大学 Modified polylactic acid with gradient crystallinity as well as preparation method and application thereof

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610483A1 (en) * 1975-03-13 1976-09-30 Monsanto Co METHOD OF TEMPERATURE CONDITIONING OF PREFORMS
GB1589052A (en) * 1976-09-23 1981-05-07 Yorkshire Imperial Plastics Pipe of oriented thermoplastic polymeric material and method of forming the same
CA1285113C (en) * 1986-08-11 1991-06-25 John J. Granata Method and apparatus for injection blow molding pet containers
DE4325481C2 (en) * 1993-07-29 1996-07-11 Innova Zug Ag Device for the production of moldings and method for producing such a device
EP0846542B1 (en) * 1996-12-04 2003-03-19 Sony DADC Austria AG Method of and apparatus for injection moulding a plastic substrate using a plurality of separate temperature adjusting means
TWI250934B (en) 1997-10-17 2006-03-11 Advancsd Plastics Technologies Barrier-coated polyester articles and the fabrication method thereof
US6352426B1 (en) 1998-03-19 2002-03-05 Advanced Plastics Technologies, Ltd. Mold for injection molding multilayer preforms
US20030031814A1 (en) * 2000-04-28 2003-02-13 Hutchinson Gerald A. Bottles and preforms having a crystalline neck
BR0113700A (en) 2000-09-05 2003-07-01 Advanced Plastics Technologies Multilayer and preform containers having barrier properties using recycled material
US20060073298A1 (en) 2004-04-16 2006-04-06 Hutchinson Gerald A Mono and multi-layer articles and extrusion methods of making the same
RU2008110527A (en) 2005-08-30 2009-10-10 Эдвансид Пластикс Текнолоджиз Лаксемберг С.А. (LU) METHODS AND SYSTEMS FOR REGULATING THE FORM TEMPERATURE

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2205063A (en) * 1987-05-22 1988-11-30 Clarke R & Co Ltd Moulded plastics articles
GB2295984A (en) * 1994-12-13 1996-06-19 Werner Kotzab Method for tempering an injection moulding tool and injection moulding tool for performing the method
GB2295984B (en) * 1994-12-13 1998-08-26 Werner Kotzab Method for tempering an injection molding tool,and injection molding tool for performing the method
WO2006047429A1 (en) * 2004-10-22 2006-05-04 Advanced Plastics Technologies, Ltd. Apparatus and method of molding preforms having a crystalline neck
FR2924046A1 (en) * 2007-11-23 2009-05-29 Oreal Blow mold for e.g. shampoo storing and distributing container, has cooling channel with profile similar to that of cavity and located at constant distance from cavity, where channel is provided in high thermal conductivity cooling zone
CN114410082A (en) * 2021-12-28 2022-04-29 湖南工业大学 Modified polylactic acid with gradient crystallinity as well as preparation method and application thereof
CN114410082B (en) * 2021-12-28 2023-04-28 湖南工业大学 Modified polylactic acid with gradient crystallinity, and preparation method and application thereof

Also Published As

Publication number Publication date
NL7102479A (en) 1971-08-27
CH507802A (en) 1971-05-31
DE2108774A1 (en) 1971-09-09
FR2080760B1 (en) 1975-09-26
FR2080760A1 (en) 1971-11-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee