发明名称 |
Solvent-based recovery and recycle of polyamide material |
摘要 |
A process is disclosed for recovering polyamide material from post-industrial and post-consumer products containing the polyamide material and insoluble materials. The process includes the steps of: (a) contacting the post-industrial and post-consumer products with a suitable solvent in a reactor; (b) dissolving and partially depolymerizing the polyamide material in the solvent to form a solution by operating the reactor at a predetermined temperature and pressure and for a time sufficient to decrease the average molecular weight of the depolymerized polyamide to less than 90% of the initial molecular weight; (c) separating the insoluble material from the solution; and (d) recovering the depolymerized polyamide from the separated solution. The process may also include the step of repolymerizing the depolymerized polyamide. |
申请公布号 |
US2004186190(A1) |
申请公布日期 |
2004.09.23 |
申请号 |
US20040808854 |
申请日期 |
2004.03.24 |
申请人 |
MCKINNON MICHAEL STEPHEN |
发明人 |
MCKINNON MICHAEL STEPHEN |
分类号 |
B01D39/20;B01D9/02;C08G69/00;C08G69/04;C08J11/08;C08J11/24;(IPC1-7):B01D39/00 |
主分类号 |
B01D39/20 |
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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