发明名称 |
METHOD FOR RECLAIMING POLYESTER OR POLYESTER MIXTURES |
摘要 |
<p>The invention relates to a method for reclaiming polyesters or polyester mixtures from polyester or waste containing polyester. The aim of the invention is to reclaim polyesters or polyester mixtures of good quality in a cost-effective manner. To achieve this aim, the polyester and/or waste containing polyester is heated in a bath of dicarboxylic acid dialkyl ester to temperatures in excess of 150° C. In this process, polyester is dissolved in the dicarboxylic acid dialkyl ester or a dicarboxylic acid dialkyl ester mixture and subsequently extracted from the solution by means of solid-liquid separation.</p> |
申请公布号 |
EP1237998(A1) |
申请公布日期 |
2002.09.11 |
申请号 |
EP20000975943 |
申请日期 |
2000.10.27 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
MAEURER, ANDREAS;KNAUF, UDO;LUCK, THOMAS |
分类号 |
C08J11/08;(IPC1-7):C08J11/08 |
主分类号 |
C08J11/08 |
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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