发明名称 |
CONTINUOUS METHOD FOR THE PRODUCTION OF POLYAMIDES |
摘要 |
Disclosed is a continuous method for producing polyamides, the oligomers or mixtures thereof, optionally with other reaction products, by reacting aminonitriles or dinitriles and diamines or mixtures thereof, optionally alo ng with additional polyamide-forming monomers and/or oligomers, with an aqueous medium comprising aqueous monomer extracts or oligomer extracts which are obtained when extracting the polymer with water during the production of polyamides. Said reaction is carried out in a reactor which has a vertical longitudinal axis and is penetrated essentially in the longitudinal directio n. According to the inventive method, water and/or the aqueous medium is/are introduced into the reactor at least at two different points located along t he vertical longitudinal axis thereof, the aqueous medium being introduced at least at one point. |
申请公布号 |
CA2555014(A1) |
申请公布日期 |
2005.08.25 |
申请号 |
CA20052555014 |
申请日期 |
2005.02.08 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
ZEHNER, PETER;DEMETER, JUERGEN;DEININGER, JUERGEN;HAHN, THILO;SOETJE, OLIVER;KORY, GAD |
分类号 |
C08G69/16;C08G69/04;C08G69/28 |
主分类号 |
C08G69/16 |
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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