JPS5747629A - Production of multilayer expansion-molded article - Google Patents

Production of multilayer expansion-molded article

Info

Publication number
JPS5747629A
JPS5747629A JP55123429A JP12342980A JPS5747629A JP S5747629 A JPS5747629 A JP S5747629A JP 55123429 A JP55123429 A JP 55123429A JP 12342980 A JP12342980 A JP 12342980A JP S5747629 A JPS5747629 A JP S5747629A
Authority
JP
Japan
Prior art keywords
mold
molded article
cavity
intermediate molded
heating
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
JP55123429A
Other languages
Japanese (ja)
Other versions
JPS6122617B2 (en
Inventor
Sou Tago
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.)
YUKA BAADEITSUSHIE KK
Mitsubishi Chemical BASF Co Ltd
Original Assignee
YUKA BAADEITSUSHIE KK
Mitsubishi Chemical BASF 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 YUKA BAADEITSUSHIE KK, Mitsubishi Chemical BASF Co Ltd filed Critical YUKA BAADEITSUSHIE KK
Priority to JP55123429A priority Critical patent/JPS5747629A/en
Publication of JPS5747629A publication Critical patent/JPS5747629A/en
Publication of JPS6122617B2 publication Critical patent/JPS6122617B2/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
    • B29C44/083—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another
    • B29C44/086—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another and feeding more material into the enlarged cavity
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE:To obtain the titled article of a desired shape by a method wherein expandable beads are expanded by heating in a mold to produce an intermediate molded article, then the intermediate molded article is transferred into a mold having a larger cavity and expandable beads for the second layer are charged into the larger cavity, followed by heating to expand the beads. CONSTITUTION:The expandable beads for the first layer are filled into a cavity 5 enclosed by female and male molds 3, 4 of the first mold by a filling gun 13, and are expanded by heating to produce the intermediate molded article a. Then, the first mold is opened, the intermediate molded article a in the female mold 3 is released from the female mold 3 by a movable plate 15 and is transferred to a male mold 9 of the second mold. A cavity 10 larger than the cavity 5 is formed by the female mold 8 and the male mold 9 of the second mold, the intermediate molded article a is placed in the cavity 10, the expandable beads for the second layer are filled into the cavity 10 by a filling gun 14 and they are expanded by heating to obtain the objective multilayer expansion-molded article A.
JP55123429A 1980-09-08 1980-09-08 Production of multilayer expansion-molded article Granted JPS5747629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55123429A JPS5747629A (en) 1980-09-08 1980-09-08 Production of multilayer expansion-molded article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55123429A JPS5747629A (en) 1980-09-08 1980-09-08 Production of multilayer expansion-molded article

Publications (2)

Publication Number Publication Date
JPS5747629A true JPS5747629A (en) 1982-03-18
JPS6122617B2 JPS6122617B2 (en) 1986-06-02

Family

ID=14860341

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55123429A Granted JPS5747629A (en) 1980-09-08 1980-09-08 Production of multilayer expansion-molded article

Country Status (1)

Country Link
JP (1) JPS5747629A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63160824A (en) * 1986-12-25 1988-07-04 Yoshihiko Seki Foam molding method of synthetic resin
US4756859A (en) * 1985-05-31 1988-07-12 Plastbau A.G. Method for manufacturing elements of expanded synthetic material having layers of particularly high strength and a plant for implementing said method
JP2014140975A (en) * 2013-01-22 2014-08-07 Bridgestone Corp Shock absorption material and method for manufacturing the same
WO2018101198A1 (en) * 2016-11-30 2018-06-07 東北資材工業株式会社 Foamable resin multilayer molded board and method for manufacturing same
JP2018144332A (en) * 2017-03-03 2018-09-20 東北資材工業株式会社 Functional resin foam multilayer molding board and method for producing the same
US10391911B2 (en) 2015-08-12 2019-08-27 Jsp Corporation Composite seat core material and vehicular seat element using the composite seat core material
JP2021024213A (en) * 2019-08-07 2021-02-22 コンフォートフォーム株式会社 Light-weight high-strength laminate of expanded resin particle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06824A (en) * 1992-06-18 1994-01-11 Fanuc Ltd Ejection device of core

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756859A (en) * 1985-05-31 1988-07-12 Plastbau A.G. Method for manufacturing elements of expanded synthetic material having layers of particularly high strength and a plant for implementing said method
JPS63160824A (en) * 1986-12-25 1988-07-04 Yoshihiko Seki Foam molding method of synthetic resin
JP2014140975A (en) * 2013-01-22 2014-08-07 Bridgestone Corp Shock absorption material and method for manufacturing the same
US10391911B2 (en) 2015-08-12 2019-08-27 Jsp Corporation Composite seat core material and vehicular seat element using the composite seat core material
WO2018101198A1 (en) * 2016-11-30 2018-06-07 東北資材工業株式会社 Foamable resin multilayer molded board and method for manufacturing same
JPWO2018101198A1 (en) * 2016-11-30 2019-10-24 東北資材工業株式会社 Foamed resin multilayer molded board and manufacturing method thereof
JP2018144332A (en) * 2017-03-03 2018-09-20 東北資材工業株式会社 Functional resin foam multilayer molding board and method for producing the same
JP2021024213A (en) * 2019-08-07 2021-02-22 コンフォートフォーム株式会社 Light-weight high-strength laminate of expanded resin particle

Also Published As

Publication number Publication date
JPS6122617B2 (en) 1986-06-02

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