JPS53124575A - Manufacture of polyolefin foam - Google Patents

Manufacture of polyolefin foam

Info

Publication number
JPS53124575A
JPS53124575A JP4062977A JP4062977A JPS53124575A JP S53124575 A JPS53124575 A JP S53124575A JP 4062977 A JP4062977 A JP 4062977A JP 4062977 A JP4062977 A JP 4062977A JP S53124575 A JPS53124575 A JP S53124575A
Authority
JP
Japan
Prior art keywords
manufacture
polyolefin foam
resin
foam
polyolefin resin
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.)
Pending
Application number
JP4062977A
Other languages
Japanese (ja)
Inventor
Takeshi Funaki
Yutaka Yamaguchi
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 JP4062977A priority Critical patent/JPS53124575A/en
Publication of JPS53124575A publication Critical patent/JPS53124575A/en
Pending 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface
    • 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
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/505—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through a flat die
    • 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
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • B29C44/507—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying extruding the compound through an annular die

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

PURPOSE:To extrude and foam a polyolefin resin stably without forming unfoamed resin blocks, by passing a molten polyolefin resin in an extruder through a wire mesh provided in the resin path between the screw tip and the die opening.
JP4062977A 1977-04-07 1977-04-07 Manufacture of polyolefin foam Pending JPS53124575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4062977A JPS53124575A (en) 1977-04-07 1977-04-07 Manufacture of polyolefin foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4062977A JPS53124575A (en) 1977-04-07 1977-04-07 Manufacture of polyolefin foam

Publications (1)

Publication Number Publication Date
JPS53124575A true JPS53124575A (en) 1978-10-31

Family

ID=12585826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4062977A Pending JPS53124575A (en) 1977-04-07 1977-04-07 Manufacture of polyolefin foam

Country Status (1)

Country Link
JP (1) JPS53124575A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60224519A (en) * 1984-04-20 1985-11-08 Kanegafuchi Chem Ind Co Ltd Manufacturing of thermoplastic resin foaming body
WO1996000644A1 (en) * 1994-06-28 1996-01-11 Bayer Aktiengesellschaft Method and device for the production of foam using carbon dioxide dissolved under pressure
WO1996002377A1 (en) * 1994-07-18 1996-02-01 Bayer Aktiengesellschaft Process and device for preparing foam using carbon dioxide dissolved under pressure
WO1996002376A1 (en) * 1994-07-18 1996-02-01 Bayer Aktiengesellschaft Process and device for preparing foam using carbon dioxide dissolved under pressure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60224519A (en) * 1984-04-20 1985-11-08 Kanegafuchi Chem Ind Co Ltd Manufacturing of thermoplastic resin foaming body
JPH0526647B2 (en) * 1984-04-20 1993-04-16 Kanegafuchi Chemical Ind
WO1996000644A1 (en) * 1994-06-28 1996-01-11 Bayer Aktiengesellschaft Method and device for the production of foam using carbon dioxide dissolved under pressure
WO1996002377A1 (en) * 1994-07-18 1996-02-01 Bayer Aktiengesellschaft Process and device for preparing foam using carbon dioxide dissolved under pressure
WO1996002376A1 (en) * 1994-07-18 1996-02-01 Bayer Aktiengesellschaft Process and device for preparing foam using carbon dioxide dissolved under pressure

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