发明名称 |
VERFAHREN UND VORRICHTUNG ZUR VERRINGERUNG DES ACETALDEHYDGEHALTES VON POLYESTERGRANULAT |
摘要 |
The invention relates to a method for producing a granulate with a low acetaldehyde content and improved processing properties from a high-viscosity polyester melt, wherein the polyester melt strand is fragmented under water at the highest possible temperature, the accompanying water is separated from the granulate with the least possible cooling of the granulate, the low-water granulate obtained in this way is passed after removal of the water directly into a dealdehydisation container and the granulate in the dealdehydisation container is treated with a flow of rinsing air, plus a device for carrying out this method. |
申请公布号 |
AT541688(T) |
申请公布日期 |
2012.02.15 |
申请号 |
AT20060791670T |
申请日期 |
2006.08.25 |
申请人 |
LURGI ZIMMER GMBH |
发明人 |
OTTO, BRIGITTA;SCHAEFER, ROLAND;BACHMANN, HOLGER;LINKE, RAINER |
分类号 |
B29B9/16;B29B9/06;C08G63/00;C08G63/90 |
主分类号 |
B29B9/16 |
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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