JPS56130A - Preparation of continuous foam body of ethylene polymer or copolymer - Google Patents

Preparation of continuous foam body of ethylene polymer or copolymer

Info

Publication number
JPS56130A
JPS56130A JP7699679A JP7699679A JPS56130A JP S56130 A JPS56130 A JP S56130A JP 7699679 A JP7699679 A JP 7699679A JP 7699679 A JP7699679 A JP 7699679A JP S56130 A JPS56130 A JP S56130A
Authority
JP
Japan
Prior art keywords
intermediate product
agent
foaming
ethylene polymer
foam body
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
JP7699679A
Other languages
Japanese (ja)
Other versions
JPS5923545B2 (en
Inventor
Jiyou Ichii
Masayasu Taneike
Shoji Ishii
Kaoru Kitadono
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.)
ICHII KK
ICHII YUUGENGAISHIYA
Sumitomo Chemical Co Ltd
Original Assignee
ICHII KK
ICHII YUUGENGAISHIYA
Sumitomo 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 ICHII KK, ICHII YUUGENGAISHIYA, Sumitomo Chemical Co Ltd filed Critical ICHII KK
Priority to JP54076996A priority Critical patent/JPS5923545B2/en
Publication of JPS56130A publication Critical patent/JPS56130A/en
Publication of JPS5923545B2 publication Critical patent/JPS5923545B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make conpression fracturing possible at a normal temperature and to improve hygroscropicity and water permeability by a method wherein ethylene polymer in which foaming agent and bridging agent are mixed is heated under a special condition and the independent foam body generated is subjected to compression fracturing.
CONSTITUTION: The compound in which foaming agent and bridging agent are mixed with ethylene polymer or copolymer is heated for a given time to produce the 1st bridged intermediate product in which the decomposition rate of the foaming agent is below 30%. This 1st intermediate product is heated at a temperature higher than the said heating temperature and the residual foaming and bridging agents are decomposed to produce the 2nd intermediate product with independent foams. Then, the 2nd intermediate product is compressed to break independent foams and to produce a continuous foam body. Azodicarbon amide etc. are used as the foaming agent and dicumaric peroxide etc. are used as the bridging agent. The foaming magnification of the 2nd intermediate product is preferred to be approximately 3W 25.
COPYRIGHT: (C)1981,JPO&Japio
JP54076996A 1979-06-18 1979-06-18 Method for producing open-celled ethylene polymer or copolymer cells Expired JPS5923545B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54076996A JPS5923545B2 (en) 1979-06-18 1979-06-18 Method for producing open-celled ethylene polymer or copolymer cells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54076996A JPS5923545B2 (en) 1979-06-18 1979-06-18 Method for producing open-celled ethylene polymer or copolymer cells

Publications (2)

Publication Number Publication Date
JPS56130A true JPS56130A (en) 1981-01-06
JPS5923545B2 JPS5923545B2 (en) 1984-06-02

Family

ID=13621381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54076996A Expired JPS5923545B2 (en) 1979-06-18 1979-06-18 Method for producing open-celled ethylene polymer or copolymer cells

Country Status (1)

Country Link
JP (1) JPS5923545B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191027A (en) * 1981-05-22 1982-11-24 Sanwa Kako Kk Manufacture of bridged polyolefin continuous foamed material
JPS5996924A (en) * 1982-11-25 1984-06-04 Toyo Rubber Chem Ind Co Ltd Manufacture of foamed 1,2-polybutadiene rubber with open cell
JPS6264530A (en) * 1985-09-17 1987-03-23 Serutekuno:Kk Manufacture of open-cell foam of polyethylene or ethylene copolymer
US4806322A (en) * 1987-11-16 1989-02-21 The Firestone Tire & Rubber Company Process for the production of linear polyphosphazenes
CN106750495A (en) * 2016-12-21 2017-05-31 沈阳建筑大学 A kind of method of converting of closed cell foamed plastic based on thermal drivers SME to open cell foamed plastic

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191027A (en) * 1981-05-22 1982-11-24 Sanwa Kako Kk Manufacture of bridged polyolefin continuous foamed material
JPS6219294B2 (en) * 1981-05-22 1987-04-27 Sanwa Kako Co
JPS5996924A (en) * 1982-11-25 1984-06-04 Toyo Rubber Chem Ind Co Ltd Manufacture of foamed 1,2-polybutadiene rubber with open cell
JPS6264530A (en) * 1985-09-17 1987-03-23 Serutekuno:Kk Manufacture of open-cell foam of polyethylene or ethylene copolymer
JPH0511139B2 (en) * 1985-09-17 1993-02-12 Seru Tekuno Kk
US4806322A (en) * 1987-11-16 1989-02-21 The Firestone Tire & Rubber Company Process for the production of linear polyphosphazenes
CN106750495A (en) * 2016-12-21 2017-05-31 沈阳建筑大学 A kind of method of converting of closed cell foamed plastic based on thermal drivers SME to open cell foamed plastic
CN106750495B (en) * 2016-12-21 2020-07-03 沈阳建筑大学 Conversion method from closed-cell foam plastic to open-cell foam plastic based on thermally-driven shape memory effect

Also Published As

Publication number Publication date
JPS5923545B2 (en) 1984-06-02

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