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JPS57144731A - Manufacture of ionically crosslinked foamed resin object - Google Patents

Manufacture of ionically crosslinked foamed resin object

Info

Publication number
JPS57144731A
JPS57144731A JP56029606A JP2960681A JPS57144731A JP S57144731 A JPS57144731 A JP S57144731A JP 56029606 A JP56029606 A JP 56029606A JP 2960681 A JP2960681 A JP 2960681A JP S57144731 A JPS57144731 A JP S57144731A
Authority
JP
Japan
Prior art keywords
copolymer
radical
pressure
ionically crosslinked
ionically
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
JP56029606A
Other languages
Japanese (ja)
Other versions
JPH0211621B2 (en
Inventor
Eisaku Hirasawa
Tadashi Kimura
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.)
Mitsui Polychemicals Co Ltd
Dow Mitsui Polychemicals Co Ltd
Original Assignee
Du Pont Mitsui Polychemicals Co Ltd
Mitsui Polychemicals 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 Du Pont Mitsui Polychemicals Co Ltd, Mitsui Polychemicals Co Ltd filed Critical Du Pont Mitsui Polychemicals Co Ltd
Priority to JP56029606A priority Critical patent/JPS57144731A/en
Publication of JPS57144731A publication Critical patent/JPS57144731A/en
Publication of JPH0211621B2 publication Critical patent/JPH0211621B2/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
    • B29C44/36—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

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE:To make the back pressure of an extruder lower than the pressure in time of foam-molding an ionically crosslinked object, make molding energy lower and realize the economical method which makes an injection device unnecessary, by performing foaming of ionically crosslinked resin by one step molding process. CONSTITUTION:A foam object of ionically crosslinked resin is obtained by milling copolymer of which 0.5-25mol% of comonomer containing carboxylic radical or carboxylic acid anhydrate radical is polymerized and metal salt of carbonic acid above the melting point of the copolymer and between ca. 130-290 deg.C and under the pressure higher than ca. 5kg/cm<2>, thus crosslinking all or part of carboxylic radical or carboxylic acid anhydrate radical of the copolymer with metallic ion. Then, the milled product is extrusion-molded at the region of low pressure, carbon dioxide gas expands by release of pressure and the ionically cosslinked copolymer object is foamed.
JP56029606A 1981-03-02 1981-03-02 Manufacture of ionically crosslinked foamed resin object Granted JPS57144731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56029606A JPS57144731A (en) 1981-03-02 1981-03-02 Manufacture of ionically crosslinked foamed resin object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56029606A JPS57144731A (en) 1981-03-02 1981-03-02 Manufacture of ionically crosslinked foamed resin object

Publications (2)

Publication Number Publication Date
JPS57144731A true JPS57144731A (en) 1982-09-07
JPH0211621B2 JPH0211621B2 (en) 1990-03-15

Family

ID=12280718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56029606A Granted JPS57144731A (en) 1981-03-02 1981-03-02 Manufacture of ionically crosslinked foamed resin object

Country Status (1)

Country Link
JP (1) JPS57144731A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60248748A (en) * 1984-05-24 1985-12-09 Ube Saikon Kk Foamable resin composition
WO1999041303A1 (en) * 1998-02-10 1999-08-19 Montell North America Inc. Foamed crystalline ionomer polyolefins
US6066682A (en) * 1995-12-25 2000-05-23 Sanyo Chemical Industries, Ltd. Foams and processes for their production
US6555591B1 (en) 1997-02-19 2003-04-29 Sanyo Chemical Industries, Ltd. Foam cross-linked with metal salt and process for production

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60248748A (en) * 1984-05-24 1985-12-09 Ube Saikon Kk Foamable resin composition
US6066682A (en) * 1995-12-25 2000-05-23 Sanyo Chemical Industries, Ltd. Foams and processes for their production
US6555591B1 (en) 1997-02-19 2003-04-29 Sanyo Chemical Industries, Ltd. Foam cross-linked with metal salt and process for production
WO1999041303A1 (en) * 1998-02-10 1999-08-19 Montell North America Inc. Foamed crystalline ionomer polyolefins
US6265455B1 (en) 1998-02-10 2001-07-24 Montell North America Inc. Foamed crystalline ionomer polyolefins
AU746156B2 (en) * 1998-02-10 2002-04-18 Montell North America Inc. Foamed crystalline ionomer polyolefins

Also Published As

Publication number Publication date
JPH0211621B2 (en) 1990-03-15

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