JPS57191029A - Manufacture of bridged polyolefinic foamed material - Google Patents

Manufacture of bridged polyolefinic foamed material

Info

Publication number
JPS57191029A
JPS57191029A JP56075651A JP7565181A JPS57191029A JP S57191029 A JPS57191029 A JP S57191029A JP 56075651 A JP56075651 A JP 56075651A JP 7565181 A JP7565181 A JP 7565181A JP S57191029 A JPS57191029 A JP S57191029A
Authority
JP
Japan
Prior art keywords
mold
polyolefinic
blowing agent
heated
bridged
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
JP56075651A
Other languages
Japanese (ja)
Other versions
JPH0242649B2 (en
Inventor
Iwao Yoshida
Hiroo Ito
Fumio Murakami
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.)
Sanwa Kako Co Ltd
Original Assignee
Sanwa Kako 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 Sanwa Kako Co Ltd filed Critical Sanwa Kako Co Ltd
Priority to JP56075651A priority Critical patent/JPS57191029A/en
Publication of JPS57191029A publication Critical patent/JPS57191029A/en
Publication of JPH0242649B2 publication Critical patent/JPH0242649B2/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
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • 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

Abstract

PURPOSE:To obtain a thick, bridged polyolefinic foamed material having uniform, fine closed cells by a method in which an expandible polyolefinic composition is put in a mold, heated while pressing, taken out of the mold in a high- temperature state in which undecomposed blowing agent is left behind, and then put in a final mold and heated indirectly. CONSTITUTION:An expandible resin composition, prepared by mixing a blowing agent, a blowing aid, and a cross linking agent with a polyolefinic resin, is packed into a mold and heated under a pressure. Then, the resin molding is taken out of the mold in a high-temperature state in which 40-85% of the blowing agent present remain undecomposed in order to obtain an intermediate primary expanded product. Then, the primary expanded product in a high-temperature state is put in a mold not enclosed, having a cross section and a dimension which correspond to the shape and dimension of a final product and then heated from the outside of the mold in such a way as to indirectly heat the primary expanded product and also to decompose the remaining blowing agent in a short time for expansion. Thus, a thick, bridged polyolefinic foamed material having uniform, fine closed cells as a low-density expanded product can be obtained.
JP56075651A 1981-05-21 1981-05-21 Manufacture of bridged polyolefinic foamed material Granted JPS57191029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56075651A JPS57191029A (en) 1981-05-21 1981-05-21 Manufacture of bridged polyolefinic foamed material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56075651A JPS57191029A (en) 1981-05-21 1981-05-21 Manufacture of bridged polyolefinic foamed material

Publications (2)

Publication Number Publication Date
JPS57191029A true JPS57191029A (en) 1982-11-24
JPH0242649B2 JPH0242649B2 (en) 1990-09-25

Family

ID=13582357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56075651A Granted JPS57191029A (en) 1981-05-21 1981-05-21 Manufacture of bridged polyolefinic foamed material

Country Status (1)

Country Link
JP (1) JPS57191029A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6153015A (en) * 1984-08-22 1986-03-15 Hiroo Ito Manufacture of polyolefin cellular body
JPS61146510A (en) * 1984-12-21 1986-07-04 Sanwa Kako Kk Manufacture of crosslinked polyolefin foam
JPS61283633A (en) * 1985-06-07 1986-12-13 Seru Techno:Kk Production of polyolefin foam
JPS63125325A (en) * 1986-11-14 1988-05-28 Sekisui Plastics Co Ltd Manufacture of crosslinked polyolefin foam
JPS63249626A (en) * 1987-04-07 1988-10-17 Sanwa Kako Kk Production equipment of foam
FR2770443A1 (en) * 1997-08-28 1999-05-07 Sun Own Ind Co Ltd Body board production
ES2157703A1 (en) * 1997-11-04 2001-08-16 Sun Own Ind Co Ltd Body board production
JP2015514607A (en) * 2012-03-13 2015-05-21 ニュー バランス アスレティック シュー，インコーポレーテッド Foamed member having a fabric component and system and method for manufacturing the same
JP2015124380A (en) * 2013-12-27 2015-07-06 キョーラク株式会社 Foam molding body

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6153015A (en) * 1984-08-22 1986-03-15 Hiroo Ito Manufacture of polyolefin cellular body
JPS61146510A (en) * 1984-12-21 1986-07-04 Sanwa Kako Kk Manufacture of crosslinked polyolefin foam
JPH0318817B2 (en) * 1984-12-21 1991-03-13 Sanwa Kako Co
JPS61283633A (en) * 1985-06-07 1986-12-13 Seru Techno:Kk Production of polyolefin foam
JPS63125325A (en) * 1986-11-14 1988-05-28 Sekisui Plastics Co Ltd Manufacture of crosslinked polyolefin foam
JPH0426301B2 (en) * 1986-11-14 1992-05-07 Sekisui Plastics
JPS63249626A (en) * 1987-04-07 1988-10-17 Sanwa Kako Kk Production equipment of foam
JPH0622923B2 (en) * 1987-04-07 1994-03-30 三和化工株式会社 Foam manufacturing equipment
FR2770443A1 (en) * 1997-08-28 1999-05-07 Sun Own Ind Co Ltd Body board production
ES2157703A1 (en) * 1997-11-04 2001-08-16 Sun Own Ind Co Ltd Body board production
JP2015514607A (en) * 2012-03-13 2015-05-21 ニュー バランス アスレティック シュー，インコーポレーテッド Foamed member having a fabric component and system and method for manufacturing the same
JP2015124380A (en) * 2013-12-27 2015-07-06 キョーラク株式会社 Foam molding body

Also Published As

Publication number Publication date
JPH0242649B2 (en) 1990-09-25

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