JPH0521732B2 - - Google Patents

Info

Publication number
JPH0521732B2
JPH0521732B2 JP17176588A JP17176588A JPH0521732B2 JP H0521732 B2 JPH0521732 B2 JP H0521732B2 JP 17176588 A JP17176588 A JP 17176588A JP 17176588 A JP17176588 A JP 17176588A JP H0521732 B2 JPH0521732 B2 JP H0521732B2
Authority
JP
Japan
Prior art keywords
resin
layer resin
flow path
intermediate layer
multilayer
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 - Lifetime
Application number
JP17176588A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0222022A (ja
Inventor
Kozaburo Sakano
Junichi Matsuo
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.)
Toyo Seikan Group Holdings Ltd
Original Assignee
Toyo Seikan Kaisha 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 Toyo Seikan Kaisha Ltd filed Critical Toyo Seikan Kaisha Ltd
Priority to JP17176588A priority Critical patent/JPH0222022A/ja
Publication of JPH0222022A publication Critical patent/JPH0222022A/ja
Publication of JPH0521732B2 publication Critical patent/JPH0521732B2/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
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C45/1646—Injecting parison-like 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1603—Multi-way nozzles specially adapted therefor
    • B29C45/1607—Multi-way nozzles specially adapted therefor having at least three different ways
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C2045/1656—Injecting the skin material through the central passage of the multiway nozzle

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
JP17176588A 1988-07-12 1988-07-12 多層射出成形体並びに中空容器の製造法 Granted JPH0222022A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17176588A JPH0222022A (ja) 1988-07-12 1988-07-12 多層射出成形体並びに中空容器の製造法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17176588A JPH0222022A (ja) 1988-07-12 1988-07-12 多層射出成形体並びに中空容器の製造法

Publications (2)

Publication Number Publication Date
JPH0222022A JPH0222022A (ja) 1990-01-24
JPH0521732B2 true JPH0521732B2 (enExample) 1993-03-25

Family

ID=15929264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17176588A Granted JPH0222022A (ja) 1988-07-12 1988-07-12 多層射出成形体並びに中空容器の製造法

Country Status (1)

Country Link
JP (1) JPH0222022A (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6655945B1 (en) * 1999-03-18 2003-12-02 Mold Masters Limited Apparatus and method for multi-layer injection molding
US9498911B2 (en) 2010-09-21 2016-11-22 Mold-Masters (2007) Limited Coinjection hot runner injection molding system
US8469687B2 (en) 2010-09-21 2013-06-25 Mold-Masters (2007) Limited Coinjection hot runner injection molding system
US9073246B2 (en) 2011-09-21 2015-07-07 Mold-Masters (2007) Limited Coinjection hot runner injection molding system

Also Published As

Publication number Publication date
JPH0222022A (ja) 1990-01-24

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