发明授权
US4640795A 5-alkyl-2-(3,4-difluorophenyl)pyrimidine and nematic liquid crystal
composition containing same
失效
5-烷基-2-（3,4-二氟苯基）嘧啶和含有它的向列型液晶组合物
- 专利标题： 5-alkyl-2-(3,4-difluorophenyl)pyrimidine and nematic liquid crystal composition containing same
- 专利标题（中）： 5-烷基-2-（3,4-二氟苯基）嘧啶和含有它的向列型液晶组合物
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申请号： US842190申请日： 1986-03-21
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公开(公告)号： US4640795A公开(公告)日： 1987-02-03
- 发明人: Tetsuya Ogawa , Kisei Kitano , Yasuyuki Goto , Masahiro Fukui , Shigeru Sugimori
- 申请人： Tetsuya Ogawa , Kisei Kitano , Yasuyuki Goto , Masahiro Fukui , Shigeru Sugimori
- 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
- 主分类号： C07D239/26
- IPC分类号： C07D239/26 ; C09K19/58 ; C09K19/34 ; C07D239/00 ; G02F1/13
摘要：
A novel compound which exhibits superior effectiveness particularly in reducing the driving voltage of liquid crystal display elements, and a liquid crystal composition containing the same are provided, which compound is a 5-alkyl-2-(3,4-difluorophenyl)pyrimidine expressed by the formula ##STR1## wherein m represents an integer of 1 to 8.