JPS57133032A - Manufacture of highly expanded polyolefinic resin - Google Patents

Manufacture of highly expanded polyolefinic resin

Info

Publication number
JPS57133032A
JPS57133032A JP56018487A JP1848781A JPS57133032A JP S57133032 A JPS57133032 A JP S57133032A JP 56018487 A JP56018487 A JP 56018487A JP 1848781 A JP1848781 A JP 1848781A JP S57133032 A JPS57133032 A JP S57133032A
Authority
JP
Japan
Prior art keywords
polyolefinic resin
highly expanded
resin
less
low
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
JP56018487A
Other languages
Japanese (ja)
Inventor
Koriku Hoshi
Kazuaki Saito
Masaji Noro
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.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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 Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Priority to JP56018487A priority Critical patent/JPS57133032A/en
Publication of JPS57133032A publication Critical patent/JPS57133032A/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
    • B29C44/50—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised

Landscapes

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

Abstract

PURPOSE:To simply manufacture a highly expanded polyolefinic resin by molding a polyolefinic resin under a condition that the resin is bridged at a gel fraction of 20% or less and a H.M.I. value of 15g/10min in the presence of an organic peroxide. CONSTITUTION:A polyolefinic resin is subjected to a cross-linking treatment by heating in the presence of an organic perxode to such an extent that gel fraction reaches 20% or less and H.M.I. reaches 15.0g/10min or less. Afterwards, the polyolefinic resin so treated is mixed with an organic solvent type blowing agnet of a low boiling point at a high temperature and a high pressure, and the mixture is extruded into a low-temperature and low-pressure region. Thus, a highly expanded polyolefinic resin can be manufactured economically by a simplified process.
JP56018487A 1981-02-10 1981-02-10 Manufacture of highly expanded polyolefinic resin Pending JPS57133032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56018487A JPS57133032A (en) 1981-02-10 1981-02-10 Manufacture of highly expanded polyolefinic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56018487A JPS57133032A (en) 1981-02-10 1981-02-10 Manufacture of highly expanded polyolefinic resin

Publications (1)

Publication Number Publication Date
JPS57133032A true JPS57133032A (en) 1982-08-17

Family

ID=11972989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56018487A Pending JPS57133032A (en) 1981-02-10 1981-02-10 Manufacture of highly expanded polyolefinic resin

Country Status (1)

Country Link
JP (1) JPS57133032A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61126701A (en) * 1984-11-16 1986-06-14 ザ　ダウ　ケミカル　カンパニー Slightly crosslinked linear olefinic polymer foam body and generation thereof
JPS61143449A (en) * 1984-12-17 1986-07-01 Sekisui Chem Co Ltd Production of polypropylene resin foam
JPS62201942A (en) * 1986-02-28 1987-09-05 Sekisui Plastics Co Ltd Production of polypropylene foam
EP0256088A1 (en) * 1986-01-22 1988-02-24 The Dow Chemical Company Expandable polyolefin compositions and polyolefin foam preparation process
US6994913B1 (en) 1999-09-30 2006-02-07 Sekisui Chemical Co., Ltd. Thermoplastic elastomer, use thereof, and process for producing the same
CN109983066A (en) * 2016-11-24 2019-07-05 Sabic环球技术有限责任公司 Produce the method and purposes of the polythene material that gel content reduces

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5423670A (en) * 1977-07-22 1979-02-22 Sumitomo Electric Ind Ltd Production of hyghly foamed polyethylene

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5423670A (en) * 1977-07-22 1979-02-22 Sumitomo Electric Ind Ltd Production of hyghly foamed polyethylene

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61126701A (en) * 1984-11-16 1986-06-14 ザ　ダウ　ケミカル　カンパニー Slightly crosslinked linear olefinic polymer foam body and generation thereof
JPS61143449A (en) * 1984-12-17 1986-07-01 Sekisui Chem Co Ltd Production of polypropylene resin foam
EP0256088A1 (en) * 1986-01-22 1988-02-24 The Dow Chemical Company Expandable polyolefin compositions and polyolefin foam preparation process
JPS62201942A (en) * 1986-02-28 1987-09-05 Sekisui Plastics Co Ltd Production of polypropylene foam
US6994913B1 (en) 1999-09-30 2006-02-07 Sekisui Chemical Co., Ltd. Thermoplastic elastomer, use thereof, and process for producing the same
CN109983066A (en) * 2016-11-24 2019-07-05 Sabic环球技术有限责任公司 Produce the method and purposes of the polythene material that gel content reduces

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