发明授权
- 专利标题: Di- and trifluorotolans
- 专利标题(中): 二氟和三氟甲苯
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申请号: US688125申请日: 1991-04-19
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公开(公告)号: US5242618A公开(公告)日: 1993-09-07
- 发明人: Joachim Krause , Volker Reiffenrath , Ulrich Finkenzeller
- 申请人: Joachim Krause , Volker Reiffenrath , Ulrich Finkenzeller
- 申请人地址: DEX Darmstadt
- 专利权人: Merck Patent Gesellschaft
- 当前专利权人: Merck Patent Gesellschaft
- 当前专利权人地址: DEX Darmstadt
- 优先权: DEX4012403 19900419
- 主分类号: C07C43/225
- IPC分类号: C07C43/225 ; C09K19/18 ; C09K19/42 ; G02F1/13
摘要:
Di- and trifluorotolans of the formula I. ##STR1## in which R.sup.1 is alkyl having up to 9 carbon atoms, andL is H or Fare suitable as components of liquid-crystalline media.
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