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公开(公告)号：EP0310620B1
公开(公告)日：1992-09-02
申请号：EP87904077.2
申请日：1987-06-23
发明人： GRAY, George, William , LACEY, David , TOYNE, Kenneth, Johnson , SCROWSTON, Richard, Michael , JACKSON, Adam , CHAN, Lawrence, Kam, Ming , SHENOUDA, Ibrahim, Gindy , BRADSHAW, Madeline, Joan , BRIMMELL, Victoria , CONSTANT, Jennifer , RAYNES, Edward, Peter
IPC分类号： C07C69/94 , C07C255/17 , C07C255/32 , C09K19/12 , C09K19/20 , C09K19/30
CPC分类号： C07C255/00 , C09K19/12 , C09K19/126 , C09K19/2021 , C09K19/2028 , C09K19/3003 , C09K19/3068
摘要： Optically active compounds of formula (I), where X has a structure (II) and B is C1-12 alkyl, a chiral group or a group having a general structure (III), where R and R' are H, C1-12 alkyl, alkoxy, alkylcarbonyloxy, or alkoxycarbonyl, each ring (IV) and (V) is the same or different, A and D are single bonds or bridging groups, each a and d is 0 or 1; Z, Z' are CN, Cl, F, Br or CF3; provided when Z is CN or Cl, then when B is alkyl X-Y is not (VI) or (VII). Ferroelectric smectic liquid crystal mixtures containing these compounds are also described.
摘要翻译： 式（I）的光学活性化合物，其中X具有结构（II）且B为C 1-12烷基，手性基团或具有通式结构（III）的基团，其中R和R'为H，C1-12 烷基，烷氧基，烷基羰基氧基或烷氧基羰基，每个环（IV）和（V）相同或不同，A和D为单键或桥连基团，a和d各自为0或1; Z，Z'是CN，Cl，F，Br或CF 3; 当Z是CN或Cl时，则当B是烷基时，X-Y不是（VI）或（VII）。 还描述了含有这些化合物的铁电近晶液晶混合物。
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公开(公告)号：EP0334845B1
公开(公告)日：1992-05-06
申请号：EP87906583.7
申请日：1987-09-30
发明人： GRAY, George, William , LACEY, David , TOYNE, Kenneth, Johnson , SCROWSTON, Richard, Michael , JACKSON, Adam
CPC分类号： C09K19/2028 , C09K19/3003
摘要： Compounds for use in ferroelectric smectic liquid crystal mixtures of general formula (I), where R1 is alkyl, Y is COO or OOC, m, n and p are 0 or 1 provided m + n is 2 or less and when Y is OOC, p is 0, X is a mesogenic group, especially 41 -alkyl- or alkyl- biphenyl or bicyclohexyl. Methods for preparation of these compounds are given, and ferroelectric smectic liquid crystal mixtures containing them are described.
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公开(公告)号：EP0201554B2
公开(公告)日：1993-01-27
申请号：EP85905639.2
申请日：1985-11-08
申请人： Secretary of State for Defence in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland , STC PLC
发明人： BONE, Matthew, Francis 47 Newtown Road , JACKSON, Adam , CHAN, Lawrence, Kam, Ming 112 Lee Street , COATES, David , GEMMELL, Peter, Alan , GRAY, George, William , LACEY, David , TOYNE, Kenneth, Johnson , YOUNG, Daniel, James, Stephen 2 York Way , SCROWSTON, Richard, Michael 11 Saunders Croft
CPC分类号： C09K19/2028 , C09K19/126 , C09K19/2021 , C09K19/22 , C09K19/3001 , C09K19/3068 , C09K19/32 , C09K19/42 , C09K19/50 , C09K2019/3095
摘要： Ferroelectric smectic liquid crystal mixtures are provided consisting of two constituents; a smectic host and another containing a chiral compound in which rotation of the chiral centre relative to the molecular core is sterically hindered, so that the chiral compound induces a high Ps in the mixture. A preferred class of chiral compounds is those derived from naturally occurring compounds with chiral groups, especially alpha-hydroxycarboxylic acids, amino acids and terpenoids, e.g. with chiral groups (I), (II), (III). The chiral group is incorporated into a compound containing a mesogenic combination of groups, e.g. with chains of cyclic groups and some mesogenic combinations are described.
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4.发明授权
公开(公告)号：EP0258298B1
公开(公告)日：1990-08-29
申请号：EP87901069.2
申请日：1987-01-28
申请人： SECRETARY OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTY'S GOV. OF THE UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND , STC PLC
发明人： GRAY, George, William , LACEY, David , TOYNE, Kenneth, Johnson , COATES, David , JACKSON, Adam , SCROWSTON, Richard, Michael
CPC分类号： C09K19/2028 , C09K19/126 , C09K19/2021 , C09K19/32
摘要： Novel compounds suitable for use as components of a ferroelectric smectic liquid crystal composition, which contain two or more chiral centers derived from optically active alpha-hydroxy carboxylic acids, secondary alcohols, and terpenoid alcohols. These units are combined with a mesogenic combination of cyclic groups. Preferred compounds contain two or more lactate groups, lactate and 2-octyl groups, or lactate and terpenoid groups in combination with phenyl groups. Ferroelectric smectic liquid compositions containing these compounds, and a device using them are also described.
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公开(公告)号：EP0201554B1
公开(公告)日：1989-02-08
申请号：EP85905639.2
申请日：1985-11-08
申请人： Secretary of State for Defence in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland , STC PLC
发明人： BONE, Matthew, Francis 47 Newtown Road , JACKSON, Adam , CHAN, Lawrence, Kam, Ming 112 Lee Street , COATES, David , GEMMELL, Peter, Alan , GRAY, George, William , LACEY, David , TOYNE, Kenneth, Johnson , YOUNG, Daniel, James, Stephen 2 York Way , SCROWSTON, Richard, Michael 11 Saunders Croft
CPC分类号： C09K19/2028 , C09K19/126 , C09K19/2021 , C09K19/22 , C09K19/3001 , C09K19/3068 , C09K19/32 , C09K19/42 , C09K19/50 , C09K2019/3095
摘要： Ferroelectric smectic liquid crystal mixtures are provided consisting of two constituents; a smectic host and another containing a chiral compound in which rotation of the chiral centre relative to the molecular core is sterically hindered, so that the chiral compound induces a high Ps in the mixture. A preferred class of chiral compounds is those derived from naturally occurring compounds with chiral groups, especially alpha-hydroxycarboxylic acids, amino acids and terpenoids, e.g. with chiral groups (I), (II), (III). The chiral group is incorporated into a compound containing a mesogenic combination of groups, e.g. with chains of cyclic groups and some mesogenic combinations are described.
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