发明授权
US4330426A Cyclohexylbiphenyls, their preparation and use in dielectrics and
electrooptical display elements
失效
环己基联苯,它们的制备和用于电介质和电光显示元件
- 专利标题: Cyclohexylbiphenyls, their preparation and use in dielectrics and electrooptical display elements
- 专利标题(中): 环己基联苯,它们的制备和用于电介质和电光显示元件
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申请号: US166663申请日: 1980-07-07
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公开(公告)号: US4330426A公开(公告)日: 1982-05-18
- 发明人: Rudolf Eidenschink , Dietrich Erdmann , Joachim Krause , Ludwig Pohl
- 申请人: Rudolf Eidenschink , Dietrich Erdmann , Joachim Krause , Ludwig Pohl
- 申请人地址: DEX Darmstadt
- 专利权人: Merck Patent Gesellschaft mit beschrankter Haftung
- 当前专利权人: Merck Patent Gesellschaft mit beschrankter Haftung
- 当前专利权人地址: DEX Darmstadt
- 优先权: DEX2927277 19790706
- 主分类号: C07C69/017
- IPC分类号: C07C69/017 ; C07C1/00 ; C07C1/22 ; C07C13/28 ; C07C17/00 ; C07C17/18 ; C07C22/08 ; C07C41/00 ; C07C43/21 ; C07C43/225 ; C07C49/792 ; C07C67/00 ; C07C69/035 ; C09K19/14 ; C09K19/30 ; C09K19/42 ; C09K19/44 ; C09K19/54 ; G02F1/13 ; C07C21/24 ; C07C43/205 ; C09K3/34
摘要:
Compounds of the formula ##STR1## wherein R.sub.1 is alkyl of 1-12 C atoms and R.sub.2 is an optionally perfluorinated alkyl, alkoxy or alkanoyloxy group, each of 1-12 C atoms are valuable liquid crystalline components for broadening the mesophase temperature range of liquid crystalline dielectrics having negative dielectric anisotropy.
公开/授权文献
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