| 发明名称 |
PROCESS FOR PRODUCING AROMATIC POLYETHER SULFONES |
| 摘要 |
The process for producing aromatic polyether sulfones via reaction of a dichlorodiphenyl sulfone component with a bisphenol component as monomers in the presence of alkali metal carbonate in the melt in the absence of solvents and diluents comprises carrying out the reaction in a mixing kneader which is operated with a shear rate in the range from 5 to 500 s−1. |
| 申请公布号 |
US2015065677(A1) |
申请公布日期 |
2015.03.05 |
| 申请号 |
US201314016504 |
申请日期 |
2013.09.03 |
| 申请人 |
BASF SE |
发明人 |
El-Toufaili Faissal-Ali;Stammer Achim;Gramlich Siimon;Ulzhöfer Angela |
| 分类号 |
C08G75/23 |
主分类号 |
C08G75/23 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A process for producing aromatic polyether sulfones via reaction of a dichlorodiphenyl sulfone component with a bisphenol component as monomers in the presence of alkali metal carbonate in the melt in the absence of solvents and diluents, which comprises carrying out the reaction in a mixing kneader which is operated with a shear rate in the range from 5 to 500 s−1, wherein the process is carried out continuously and the reaction in the mixing kneader takes place at atmospheric pressure. |
| 地址 |
Ludwigshafen DE |
