JPS54117568A - Production of thermoplastic resin foam - Google Patents

Production of thermoplastic resin foam

Info

Publication number
JPS54117568A
JPS54117568A JP2414578A JP2414578A JPS54117568A JP S54117568 A JPS54117568 A JP S54117568A JP 2414578 A JP2414578 A JP 2414578A JP 2414578 A JP2414578 A JP 2414578A JP S54117568 A JPS54117568 A JP S54117568A
Authority
JP
Japan
Prior art keywords
water bath
thermoplastic resin
foaming machine
thermal foaming
production
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
JP2414578A
Other languages
Japanese (ja)
Other versions
JPS5728339B2 (en
Inventor
Hiroshi Nagarei
Kiyoshi Torii
Kiyoshi Watanabe
Takeo Shoji
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.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP2414578A priority Critical patent/JPS54117568A/en
Priority to BR7901399A priority patent/BR7901399A/en
Publication of JPS54117568A publication Critical patent/JPS54117568A/en
Publication of JPS5728339B2 publication Critical patent/JPS5728339B2/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
    • B29C44/34—Auxiliary operations
    • B29C44/3403—Foaming under special conditions, e.g. in sub-atmospheric pressure, in or on a liquid

Landscapes

  • Laminated Bodies (AREA)

Abstract

PURPOSE:To obtain an expanded sheet of a thermoplastic resin with quick and stabilized expansion and improved operative effciency, by introducing an expandable sheet into a constant temperature water bath just before being fed to a thermal foaming machine to preheat it at a given temperature constantly. CONSTITUTION:The constant temperature water bath 2 heated e.g., at 50-100 deg.C is put before the thermal foaming machine 3. The expandable sheet 1 of polyethylene, etc. is introduced into the temperature constant water bath 2, preheated in the width and thickness directions uniformly, and transferred to the thermal foaming machine to give the desired foam.
JP2414578A 1978-03-03 1978-03-03 Production of thermoplastic resin foam Granted JPS54117568A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2414578A JPS54117568A (en) 1978-03-03 1978-03-03 Production of thermoplastic resin foam
BR7901399A BR7901399A (en) 1978-03-03 1979-03-02 PROCESS TO PRODUCE A THERMOPLASTIC RESIN FOAM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2414578A JPS54117568A (en) 1978-03-03 1978-03-03 Production of thermoplastic resin foam

Publications (2)

Publication Number Publication Date
JPS54117568A true JPS54117568A (en) 1979-09-12
JPS5728339B2 JPS5728339B2 (en) 1982-06-16

Family

ID=12130153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2414578A Granted JPS54117568A (en) 1978-03-03 1978-03-03 Production of thermoplastic resin foam

Country Status (2)

Country Link
JP (1) JPS54117568A (en)
BR (1) BR7901399A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143337A (en) * 1981-03-02 1982-09-04 Furukawa Electric Co Ltd:The Fusible foam of crosslinked polypropylene
US5128383A (en) * 1990-02-16 1992-07-07 Sekisui Kaseihin Kogyo Kabushiki Kaisha Process of producing thermoplastic polyester series resin foamed material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57143337A (en) * 1981-03-02 1982-09-04 Furukawa Electric Co Ltd:The Fusible foam of crosslinked polypropylene
JPS631977B2 (en) * 1981-03-02 1988-01-14 Furukawa Electric Co Ltd
US5128383A (en) * 1990-02-16 1992-07-07 Sekisui Kaseihin Kogyo Kabushiki Kaisha Process of producing thermoplastic polyester series resin foamed material
US5234640A (en) * 1990-02-16 1993-08-10 Sekisui Kaseihin Kogyo Kabushiki Kaisha Process of producing thermoplastic polyester series resin foamed

Also Published As

Publication number Publication date
JPS5728339B2 (en) 1982-06-16
BR7901399A (en) 1979-10-02

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