发明授权
US6143847A Method for preparing (co) polymers by metal-free anionic polymerization
in the presence of a phosphonium cation containing at least one
annellated aromatic ring
失效
在含有至少一个环形芳环的鏻阳离子存在下通过无金属阴离子聚合制备(共)聚合物的方法
- 专利标题: Method for preparing (co) polymers by metal-free anionic polymerization in the presence of a phosphonium cation containing at least one annellated aromatic ring
- 专利标题(中): 在含有至少一个环形芳环的鏻阳离子存在下通过无金属阴离子聚合制备(共)聚合物的方法
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申请号: US827906申请日: 1997-04-07
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公开(公告)号: US6143847A公开(公告)日: 2000-11-07
- 发明人: Thieo E. Hogen-Esch , Dimo K. Dimov , Stephan Jungling , Volker Warzelhan , Hermann Gausepohl
- 申请人: Thieo E. Hogen-Esch , Dimo K. Dimov , Stephan Jungling , Volker Warzelhan , Hermann Gausepohl
- 申请人地址: DEX Ludwigschafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX Ludwigschafen
- 主分类号: C07F9/54
- IPC分类号: C07F9/54 ; C08F2/00 ; C08F4/00
摘要:
The present invention concerns a novel method for preparing polymers (preferably (meth)acrylate polymers and copolymers) having a narrow molecular weight distribution by metal-free anionic polymerization in the presence of a phosphonium cation containing at least one annellated aromatic ring as substituent on the phosphorous atom.
公开/授权文献
- USD298928S Van top 公开/授权日:1988-12-13
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