JPS5678945A - Preparation of molded polystyrene foam article - Google Patents

Preparation of molded polystyrene foam article

Info

Publication number
JPS5678945A
JPS5678945A JP15714479A JP15714479A JPS5678945A JP S5678945 A JPS5678945 A JP S5678945A JP 15714479 A JP15714479 A JP 15714479A JP 15714479 A JP15714479 A JP 15714479A JP S5678945 A JPS5678945 A JP S5678945A
Authority
JP
Japan
Prior art keywords
substance
molded
gelatin
molded article
polystyrene
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
JP15714479A
Other languages
Japanese (ja)
Inventor
Masao Yuto
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP15714479A priority Critical patent/JPS5678945A/en
Publication of JPS5678945A publication Critical patent/JPS5678945A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a foamed material up to about 40 times by a method wherein a liquid foaming agent is impregnated in a polystyrene resin at a temp. of a softening point or less to form a gelatin like substance and this substance is molded into a shape similar to an objective molded article and, thereafter, foaming is carried out.
CONSTITUTION: The liquid foaming agent is impregnated in a polystyrene or a thermoplastic resin based on a polystyrene at a temp. of a softening point thereof or less to prepare a gelatin like substance. By processing this gelatin like substance into a shape similar to that of the objective molded article or by forming a metal mold for preparing said gelatin like substance into a shape similar to the objective molded article, said gelatin like substance is molded into a shape similar to the objective molded article. Subsequently, this molded substance is allowed to stand at a room temp. or heated to be foamed to produce the molded polystyrene molded article. By changing a foaming and standing temp. with time, a skin layer can be formed on an outer surface of the foamed article.
COPYRIGHT: (C)1981,JPO&Japio
JP15714479A 1979-12-03 1979-12-03 Preparation of molded polystyrene foam article Pending JPS5678945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15714479A JPS5678945A (en) 1979-12-03 1979-12-03 Preparation of molded polystyrene foam article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15714479A JPS5678945A (en) 1979-12-03 1979-12-03 Preparation of molded polystyrene foam article

Publications (1)

Publication Number Publication Date
JPS5678945A true JPS5678945A (en) 1981-06-29

Family

ID=15643138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15714479A Pending JPS5678945A (en) 1979-12-03 1979-12-03 Preparation of molded polystyrene foam article

Country Status (1)

Country Link
JP (1) JPS5678945A (en)

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