| 发明名称 |
Process for chemical recycling of polycarbonates |
| 摘要 |
<p>Method for the chemical recycling of thermoplastic aromatic polycarbonates comprises (1) breaking them down to oligocarbonates with diaryl carbonate in the presence of a catalyst; (2) opt. removing insol. particles; (3) crystallising; (4) cleaning; and (5) carrying out a polycondensation reaction to give the thermoplastic polycarbonate.</p> |
| 申请公布号 |
EP0688807(B1) |
申请公布日期 |
1999.09.01 |
| 申请号 |
EP19950108833 |
申请日期 |
1995.06.08 |
| 申请人 |
BAYER AG |
发明人 |
BUYSCH, HANS-JOSEF, DR.;KUEHLING, STEFFEN, DR. |
| 分类号 |
C08G64/20;C08G64/30;C08G64/42;C08J11/22;(IPC1-7):C08G64/30;C08L69/00 |
主分类号 |
C08G64/20 |
| 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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