发明授权
- 专利标题: Process for the continuous production of polyamides
- 专利标题(中): 聚酰胺连续生产工艺
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申请号: US504666申请日: 1983-06-15
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公开(公告)号: US4465821A公开(公告)日: 1984-08-14
- 发明人: Werner Nielinger , Wolfgang Alewelt , Karl H. Hermann
- 申请人: Werner Nielinger , Wolfgang Alewelt , Karl H. Hermann
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX3223823 19820625
- 主分类号: C08G69/00
- IPC分类号: C08G69/00 ; C08G69/28 ; C08G69/26
摘要:
A process for the production of polyamides by the polycondensation of aqueous solutions of salts of diamines and dicarboxylic acids by continuously introducing the aqueous salt solution into a precondensate melt under atmospheric pressure and simultaneously distilling off the water and maintaining the temperature of the melt at a minimum temperature of 180.degree. C.