发明名称 |
POLYARYL ETHER SULFONE COPOLYMERS |
摘要 |
The invention relates to a method for preparing polyarylethersulfone-polyalkylene oxide block copolymers (PPC) comprising the polycondensation of a reaction mixture (RG) comprising the components: (A1) at least one aromatic dihalogen compound, (B1) at least one aromatic dihydroxyl compound, (B2) at least one polyalkylene oxide having at least two hydroxyl groups, (C) at least one aprotic polar solvent and (D) at least one metal carbonate, where the reaction mixture (RG) does not comprise any substance which forms an azeotrope with water. |
申请公布号 |
EP2992033(B1) |
申请公布日期 |
2017.03.08 |
申请号 |
EP20140724351 |
申请日期 |
2014.04.30 |
申请人 |
BASF SE |
发明人 |
WEBER, Martin;MALETZKO, Christian;WEIß, Thomas;ERBES, Jörg;STAAL, Bastiaan Bram Pieter |
分类号 |
C08G65/00;C08G65/26;C08G65/334;C08G65/337;C08G75/20;C08K3/26 |
主分类号 |
C08G65/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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