JPS5463166A - Preparation of crosslinked high density polyethylene foam - Google Patents

Preparation of crosslinked high density polyethylene foam

Info

Publication number
JPS5463166A
JPS5463166A JP12965477A JP12965477A JPS5463166A JP S5463166 A JPS5463166 A JP S5463166A JP 12965477 A JP12965477 A JP 12965477A JP 12965477 A JP12965477 A JP 12965477A JP S5463166 A JPS5463166 A JP S5463166A
Authority
JP
Japan
Prior art keywords
article
polyethylene
density polyethylene
high density
molecular weight
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
JP12965477A
Other languages
Japanese (ja)
Other versions
JPS6011936B2 (en
Inventor
Tokuji Ogawa
Akira Okawa
Mitsushi Tsuji
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 Dow Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Dow Ltd
Asahi Chemical Industry 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 Asahi Dow Ltd, Asahi Chemical Industry Co Ltd filed Critical Asahi Dow Ltd
Priority to JP12965477A priority Critical patent/JPS6011936B2/en
Publication of JPS5463166A publication Critical patent/JPS5463166A/en
Publication of JPS6011936B2 publication Critical patent/JPS6011936B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To prepare a uniformly and highly foamed closed-cell crosslinked polyethylene molded article, having higt heat resistance, economically, by irradiating a polyethylene molded article containing a low molecular weight compound and an organic peroxide with ultra-violet ray thereby crosslinking the article, and impregnating the crosslinked article with an evaporation-type foaming agent followed by heating and foaming thereof.
CONSTITUTION: An organic peroxide is added to a resin composition composed of (A) 75W40wt% of high density polyethylene, (B) 20W5wt% of a low molecular weight compound miscible with said polyethylene resin, and having an average molecular weight of 300W5000, e.g. paraffin wax, polybutene, polyethylene wax, etc., and (C) 5W55wt% of low density polyethylene, and the mixture is kneaded and molded. The molded article is crosolinked by irradiating with ultra-violet ray at a temperature above the melting point of the high density polyethylene and at temperature and time conditions under which the foaming of the article does not occur without the UV-irradiation. After the crosslinking, the article is impregnated with a normally gaseous evaporation-type foaming agent under high temperature and pressure, and foamed by heating.
COPYRIGHT: (C)1979,JPO&Japio
JP12965477A 1977-10-31 1977-10-31 Method for producing high-density polyethylene crosslinked foam Expired JPS6011936B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12965477A JPS6011936B2 (en) 1977-10-31 1977-10-31 Method for producing high-density polyethylene crosslinked foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12965477A JPS6011936B2 (en) 1977-10-31 1977-10-31 Method for producing high-density polyethylene crosslinked foam

Publications (2)

Publication Number Publication Date
JPS5463166A true JPS5463166A (en) 1979-05-21
JPS6011936B2 JPS6011936B2 (en) 1985-03-29

Family

ID=15014847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12965477A Expired JPS6011936B2 (en) 1977-10-31 1977-10-31 Method for producing high-density polyethylene crosslinked foam

Country Status (1)

Country Link
JP (1) JPS6011936B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7994231B2 (en) * 2005-01-18 2011-08-09 Zotefoams Plc. Polyamide foams, process to make them and applications thereof
WO2017075128A1 (en) * 2015-10-30 2017-05-04 Nike, Inc. Method of foaming an injection molded precursor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7994231B2 (en) * 2005-01-18 2011-08-09 Zotefoams Plc. Polyamide foams, process to make them and applications thereof
WO2017075128A1 (en) * 2015-10-30 2017-05-04 Nike, Inc. Method of foaming an injection molded precursor
US10357904B2 (en) 2015-10-30 2019-07-23 Nike, Inc. Method of foaming an injection molded precursor
EP3778176A1 (en) * 2015-10-30 2021-02-17 Nike Innovate C.V. Method of foaming an injection molded precursor
EP4056346A1 (en) * 2015-10-30 2022-09-14 Nike Innovate C.V. Method of foaming an injection molded precursor
US11491688B2 (en) 2015-10-30 2022-11-08 Nike, Inc. Method of foaming an injection molded precursor

Also Published As

Publication number Publication date
JPS6011936B2 (en) 1985-03-29

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