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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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2.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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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：EP0258298A1
公开(公告)日：1988-03-09
申请号：EP87901069.0
申请日：1987-01-28
申请人： THE SECRETARY OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTY'S GOVERNMENT OF THE UNITED KINGDOM OF GREAT BRITAIN AND , STC PLC
发明人： GRAY, George, William , LACEY, David , TOYNE, Kenneth, Johnson , COATES, David , JACKSON, Adam , SCROWSTON, Richard, Michael
IPC分类号： C09K19
CPC分类号： C09K19/2028 , C09K19/126 , C09K19/2021 , C09K19/32
摘要： Nouveaux composés indiqués pour être utilisés comme composants d'une composition de cristaux liquides smectiques ferro-électriques, contenant deux ou plusieurs centres chiraux dérivés d'acides alpha-hydroxy carboxyliques optiquement actifs, d'alcools secondaires et d'alcools terpénoïdes. Ces unités sont combinées avec une combinaison mésogène de groupes cycliques. Des composés préférés contiennent deux ou plusieurs groupes lactate, des groupes lactate et 2-octyle ou des groupes lactate et terpénoïde en combinaison avec des groupes phényle. Sont également décrites des compositions à base de cristaux liquides smectiques ferro-électriques contenant ces composés et un dispositif les utilisant.
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公开(公告)号：EP0201554A1
公开(公告)日：1986-11-20
申请号：EP85905639.0
申请日：1985-11-08
申请人： The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and , 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
IPC分类号： C09K19
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： Mélanges de cristaux liquides smectiques ferroélectriques composés de deux constituants: un hôte smectique et un autre contenant un composé chiral dans lequel la rotation du centre de chiralité par rapport au noyau moléculaire est entravée stériquement de sorte que le composé chiral entraîne un coefficient de polarisation spontanée élevé dans le mélange. Des composés chiraux préférentiels sont dérivés des composés apparaissant naturellement avec des groupes chiraux, notamment des acides alpha-hydrocarboxyliques, des acides aminés et des terpénoïdes par exemple avec des groupes chiraux (I), (II), (III). Le groupe chiral est incorporé dans un composé contenant une combinaison de groupes mésogènes, par exemple avec des chaînes de groupes cycliques, certaines combinaisons mésogènes étant décrites.
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