发明授权
- 专利标题： Ester derivative having a positive dielectric anisotropy
- 专利标题（中）： 具有正介电各向异性的酯衍生物
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申请号： US774945申请日： 1985-09-11
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公开(公告)号： US4659500A公开(公告)日： 1987-04-21
- 发明人: Shigeru Sugimori , Kazunori Nigorikawa , Yasuyuki Goto
- 申请人： Shigeru Sugimori , Kazunori Nigorikawa , Yasuyuki Goto
- 申请人地址： JPX Osaka
- 专利权人： Chisso Corporation
- 当前专利权人： Chisso Corporation
- 当前专利权人地址： JPX Osaka
- 优先权： JPX59-190378 19840911
- 主分类号： C09K19/44
- IPC分类号： C09K19/44 ; C07D213/79 ; C09B57/00 ; C09K19/34 ; C09K19/54 ; G02F1/13
摘要：
A novel ester derivative affording a positive large dielectric anisotropy value (.DELTA..epsilon.) of liquid crystal compositions and also reducing the optical anisotropy value (.DELTA.n) thereof when the derivative is contained therein, and a liquid crystal composition containing the ester derivative are provided, which ester derivative is expressed by the formula ##STR1## wherein R represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms and X represents F or Cl.