发明名称 |
Continuous process for the production of polystyrene foamed articles |
摘要 |
This invention relates to a process for producing economically shaped article of polystyrene foam with a small wall thickness and sufficient strength by a continuous simple operation including a short forming cycle in which the sheet of polystyrene foam having a bulk density of 0.15 to 0.7 g/cm3, a thickness of 0.3 to 1.0 mm, 5 to 20 cell membranes widthwise of the sheet and a draw ratio of up to 1.25 and containing 0.03 to 0.3 mole/kg of the residual gas of the blowing agent is formed by an extruder and utilized to produce the shaped article.
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申请公布号 |
US4426065(A) |
申请公布日期 |
1984.01.17 |
申请号 |
US19810330823 |
申请日期 |
1981.12.15 |
申请人 |
SEKISUI KASEIHIN KOGYO KABUSHIKI KAISHA |
发明人 |
KOMATSUZAKI, NOBUYUKI;TSUBONE, MASAHIRO;MACHIDA, BON |
分类号 |
C08J9/12;B29C44/50;B29C44/56;B29C51/00;B65D81/00;B65D81/113;C08J9/00;C08J9/14;(IPC1-7):B29D27/00 |
主分类号 |
C08J9/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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