发明授权
- 专利标题： Fluorinated 4"-cyano substituted terphenyls
- 专利标题（中）： 氟化4'-氰基取代的三联苯
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申请号： US7821申请日： 1993-01-22
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公开(公告)号： US5312563A公开(公告)日： 1994-05-17
- 发明人: David Coates , Ian Sage , Simon Greenfield , George W. Gray , David Lacey , Kenneth J. Toyne , Lawrence K. Chan , Michael Hird
- 申请人： David Coates , Ian Sage , Simon Greenfield , George W. Gray , David Lacey , Kenneth J. Toyne , Lawrence K. Chan , Michael Hird
- 申请人地址： GB2 London
- 专利权人： The Secretary of State for Defence in her Britannic Majesty's Government of the U.K. of Great Britain and Northern Ireland
- 当前专利权人： The Secretary of State for Defence in her Britannic Majesty's Government of the U.K. of Great Britain and Northern Ireland
- 当前专利权人地址： GB2 London
- 优先权： GBX8814327 19880616
- 主分类号： C07C255/50
- IPC分类号： C07C255/50 ; C09K19/12 ; C07C25/13 ; C09K19/52
摘要：
Fluorinated 4"-cyano substituted terphenyls of general formula (I), wherein R.sub.1 is selected from alkenyl, H, R, RO and RCO where R is alkyl or perfluoroalkyl containing up to 12 carbon atoms, n is 1, 2 or 3 and the lateral fluorosubstituent(s) may be in any of the available substitution positions are provided. These have liquid crystalline properties and may be used as components of liquid crystal materials.
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