发明授权
US4327208A Continuous process for the hydrolytic production of polycaprolactam
having a low-monomer and low-dimer content
失效
用于水解生产具有低单体和低二聚体含量的聚己内酰胺的连续方法
- 专利标题: Continuous process for the hydrolytic production of polycaprolactam having a low-monomer and low-dimer content
- 专利标题(中): 用于水解生产具有低单体和低二聚体含量的聚己内酰胺的连续方法
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申请号: US167055申请日: 1980-07-09
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公开(公告)号: US4327208A公开(公告)日: 1982-04-27
- 发明人: Gunter Lehr , Uwe Hucks , Hugo Vernaleken , Werner Nielinger , Erhard Tresper
- 申请人: Gunter Lehr , Uwe Hucks , Hugo Vernaleken , Werner Nielinger , Erhard Tresper
- 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: DEX2821686 19780518
- 主分类号: C08G69/00
- IPC分类号: C08G69/00 ; C08G69/16 ; C08G69/46 ; C08L101/16
摘要:
A process for the production of polyamide-6 or corresponding copolyamides by hydrolytic polymerization wherein the low molecular weight secondary reaction products and the unreacted .epsilon.-caprolactam are separated off from the polyamide melt and directly condensed on the .epsilon.-caprolactam melt to be polymerized.
公开/授权文献
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