JPS5714632A - Foamable particle of crosslinkable polyethylene resin - Google Patents

Foamable particle of crosslinkable polyethylene resin

Info

Publication number
JPS5714632A
JPS5714632A JP8861180A JP8861180A JPS5714632A JP S5714632 A JPS5714632 A JP S5714632A JP 8861180 A JP8861180 A JP 8861180A JP 8861180 A JP8861180 A JP 8861180A JP S5714632 A JPS5714632 A JP S5714632A
Authority
JP
Japan
Prior art keywords
particles
expansion
foamable
polyethylene resin
mold
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
JP8861180A
Other languages
Japanese (ja)
Other versions
JPS629255B2 (en
Inventor
Shigeya Sato
Tsukasa Yamagishi
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 JP8861180A priority Critical patent/JPS5714632A/en
Priority to CA000366174A priority patent/CA1147100A/en
Priority to KR1019800004639A priority patent/KR830002656B1/en
Priority to US06/213,643 priority patent/US4366263A/en
Priority to DE8080107757T priority patent/DE3072109D1/en
Priority to EP80107757A priority patent/EP0032557B1/en
Publication of JPS5714632A publication Critical patent/JPS5714632A/en
Publication of JPS629255B2 publication Critical patent/JPS629255B2/ja
Priority to HK284/89A priority patent/HK28489A/en
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a foamed molded article capable of omitting expansion process in molding in a mold and gradual cooling process, having improved heat-resistant creep, mechanical properties, surface gloss, and high quality, by using foamable particles having a specific particle structure.
CONSTITUTION: A high-quality foamed molded article is obtained by using globular foamable particles having the surface with a smoothness degrees ≤1.05, a magnification of expansion D about 20W40min times, a damping factor T of air pressure introduced in the particles by pressure in a range shown by the formula (1/1500W1/ 2500)D, namely expansion ability ≥1.3 times, and improved gloss by molding in a mold without troublesome process control and condition control. Previously expanded particles are obtained by impregnating crosslinkable polyethylene resin particles with a blowing agent and putting the particles in such an atmosphere that the blowing agent existing in the surface layer of the particles vaporizes away and raising the temperature gradually in such a way that excess stress is not produced on the surface layer parts of the particles when the expanded particles with low magnificiation of expansion are processed into foamed particles with high magnification of expansion.
COPYRIGHT: (C)1982,JPO&Japio
JP8861180A 1979-12-10 1980-06-30 Foamable particle of crosslinkable polyethylene resin Granted JPS5714632A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP8861180A JPS5714632A (en) 1980-06-30 1980-06-30 Foamable particle of crosslinkable polyethylene resin
CA000366174A CA1147100A (en) 1979-12-10 1980-12-04 Expanded cross-linked polyethylene particle, a molded product thereof and the methods thereof
KR1019800004639A KR830002656B1 (en) 1980-06-30 1980-12-05 Expended cross-linked pelyethylene particls a molded product there-of and the methodes thereof
US06/213,643 US4366263A (en) 1979-12-10 1980-12-05 Expanded cross-linked polyethylene particle, a molded product thereof and the methods thereof
DE8080107757T DE3072109D1 (en) 1979-12-10 1980-12-09 An expanded cross-linked polyethylene particle and methods to produce molded products thereof
EP80107757A EP0032557B1 (en) 1979-12-10 1980-12-09 An expanded cross-linked polyethylene particle and methods to produce molded products thereof
HK284/89A HK28489A (en) 1979-12-10 1989-04-06 An expanded cross-linked polyethylene particle and methods to produce molded products thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8861180A JPS5714632A (en) 1980-06-30 1980-06-30 Foamable particle of crosslinkable polyethylene resin

Publications (2)

Publication Number Publication Date
JPS5714632A true JPS5714632A (en) 1982-01-25
JPS629255B2 JPS629255B2 (en) 1987-02-27

Family

ID=13947601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8861180A Granted JPS5714632A (en) 1979-12-10 1980-06-30 Foamable particle of crosslinkable polyethylene resin

Country Status (1)

Country Link
JP (1) JPS5714632A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090229A (en) * 1983-10-24 1985-05-21 Japan Styrene Paper Co Ltd Expanded particle of polyethylene based resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090229A (en) * 1983-10-24 1985-05-21 Japan Styrene Paper Co Ltd Expanded particle of polyethylene based resin

Also Published As

Publication number Publication date
JPS629255B2 (en) 1987-02-27

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