JPS5678945A - Preparation of molded polystyrene foam article - Google Patents
Preparation of molded polystyrene foam articleInfo
- 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
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
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) |
-
1979
- 1979-12-03 JP JP15714479A patent/JPS5678945A/en active Pending
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