发明名称 |
METHOD FOR PRODUCING EXPANDABLE POLYSTYRENE |
摘要 |
The invention relates to a method for producing expandable polystyrene with a molecular weight Mw in excess of 170,000 g/mol. According to the invention, a styrene polymer melt containing an expanding agent and having a temperature of at least 120 ~C is passed through a spinneret comprising bores, whose diamet er at the spinneret exit measures a maximum 1.5 mm, and is then granulated. The invention also relates to expandable styrene polymers (EPS) with a molecular weight Mw of more than 170,000 g/mol and between 0.05 and 1.5 wt. % inherent moisture.
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申请公布号 |
CA2488507(A1) |
申请公布日期 |
2003.12.24 |
申请号 |
CA20032488507 |
申请日期 |
2003.06.06 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
DIETZEN, FRANZ-JOSEF;EHRMANN, GERD;LAUN, MARTIN;SCHMIED, BERNHARD;RUCH, JOACHIM;HAHN, KLAUS;HOLOCH, JAN;DATKO, ACHIM;ALLMENDINGER, MARKUS |
分类号 |
C08J9/00;B29B9/10;B29B11/10;B29C44/34;B29K25/00;B29K105/04;C08J9/16;(IPC1-7):C08J9/16 |
主分类号 |
C08J9/00 |
代理机构 |
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地址 |
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