发明授权
US5017682A Process for the production of unbranched polyarylene sulfides of
improved color quality and improved color stability
失效
生产具有改进的颜色质量和改善的颜色稳定性的非支化聚亚芳基硫化物的方法
- 专利标题: Process for the production of unbranched polyarylene sulfides of improved color quality and improved color stability
- 专利标题(中): 生产具有改进的颜色质量和改善的颜色稳定性的非支化聚亚芳基硫化物的方法
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申请号: US394120申请日: 1989-08-14
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公开(公告)号: US5017682A公开(公告)日: 1991-05-21
- 发明人: Burkhard Kohler , Rolf-Volker Meyer , Ernst-Ulrich Dorf , Wolfgang Russeler , Manfred Schmidt
- 申请人: Burkhard Kohler , Rolf-Volker Meyer , Ernst-Ulrich Dorf , Wolfgang Russeler , Manfred Schmidt
- 申请人地址: DEX Leverkusen-Bayerwerk
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen-Bayerwerk
- 优先权: DEX3828760 19880825
- 主分类号: C08G75/025
- IPC分类号: C08G75/025 ; C08G75/06
摘要:
The invention relates to a process for the production of linear, unbranched polyarylene sulfides from aromatic dichlorine compounds and alkali sulfides in tetra-alkylated, cyclic ureas as the reaction medium.
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