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

Process for the production of unbranched polyarylene sulfides of
improved color quality and improved color stability
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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