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公开(公告)号：US4943385A
公开(公告)日：1990-07-24
申请号：US206372
申请日：1988-06-14
IPC分类号： C07C67/00 , C07C313/00 , C07C323/62 , C07D213/30 , C07D213/65 , C07D213/84 , C07D239/26 , C07D241/12 , C09K19/20 , C09K19/34 , C09K19/46
CPC分类号： C07D213/30 , C07C323/62 , C07D239/26 , C09K19/2021 , C09K19/3444 , C09K19/3452 , C09K19/3463
摘要： A liquid crystalline compound useful as a component of liquid crystal compositions for liquid crystal display elements, exhibiting ferroelectric liquid crystal phases over a broad temperature range including room temperature, and a liquid crystal composition containing the same are provided. The compound is a thioether compound of the formula ##STR1## wherein R.sup.1 is a 2-10C alkyl; R.sup.2 is methyl or ethyl; but the carbon number of R.sup.1 is always larger than that of R.sup.2 ; A is ##STR2## wherein X is H, halogen or CN; Y is a 1-18C alkyl or alkoxy; l is 1 or 2; and * indicates optically active carbon atom.
摘要翻译： 提供了用作液晶显示元件的液晶组合物的组分的液晶化合物，其在包括室温的宽温度范围内呈现铁电液晶相，以及含有该液晶组合物的液晶组合物。 该化合物是下式的硫醚化合物，其中R1是2-10C烷基; R2是甲基或乙基; 但R1的碳数总是大于R2的碳数; A是
+ TR 其中X是H，卤素或CN; Y是1-18C烷基或烷氧基; l为1或2; 和*表示光学活性碳原子。 -
公开(公告)号：US4818432A
公开(公告)日：1989-04-04
申请号：US42805
申请日：1987-04-27
IPC分类号： C07C41/00 , C07C43/225 , C07C45/46 , C07C49/84 , C07C67/00 , C07C253/00 , C07C255/53 , C07C255/54 , C09K19/12 , C09K19/54 , G02F1/13 , C07C49/807
CPC分类号： C07C255/00 , C07C43/225 , C07C45/46 , C07C49/84 , C09K19/126
摘要： A novel 3-substituted biphenyl compound useful as a component of chiral liquid crystal compositions useful for light-switching elements by the use of ferroelectric liquid crystals; a chiral liquid crystal composition containing the compound; and a light-switching element utilizing the composition are provided, which compound is expressed by the formula ##STR1## wherein either one of R.sup.1 or R.sup.2 represents an alkyl group of 4 to 18 carbon atoms having a methyl branch and the other thereof represents an alkyl group of 2 to 18 carbon atoms; X represents a halogen atom of F, Cl or Br or cyano group; and l represents 0 to 1.
摘要翻译： 可用作通过使用铁电液晶的光开关元件的手性液晶组合物的组分的新型3-取代联苯基化合物; 含有该化合物的手性液晶组合物; 并提供使用该组合物的光开关元件，该化合物由式（I）表示，其中R 1或R 2中的任一个表示具有甲基支链的4至18个碳原子的烷基，而另一个 表示2〜18个碳原子的烷基; X表示F，Cl或Br或氰基的卤素原子; l表示0〜1。
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公开(公告)号：US4784791A
公开(公告)日：1988-11-15
申请号：US68332
申请日：1987-07-01
CPC分类号： C09K19/20
摘要： A novel liquid crystal compound represented by the general formula (I): ##STR1## (wherein R is a straight or branched alkyl or alkoxy group having 1 to 20 carbon atoms, R* is an optically active alkyl group having 4 to 20 carbon atoms, X is a fluorine atom or a chlorine atom, and n is 1 or 2), a liquid crystal composition containing at least one liquid crystal compound of the general formula (I), a chiral smectic liquid crystal composition containing at least one liquid crystal compound of the general formula (I), and an optical switching element utilizing the chiral smectic liquid crystal composition containing at least one liquid crystal compound of the general formula (I) are described.
摘要翻译： 由通式（I）表示的新型液晶化合物：其中，R为碳原子数1〜20的直链或支链烷基或烷氧基，R *为4〜 20个碳原子，X为氟原子或氯原子，n为1或2），含有至少一种通式（I）的液晶化合物的液晶组合物，至少含有一种手性近晶液晶组合物 描述了一种通式（I）的液晶化合物和使用含有至少一种通式（I）的液晶化合物的手性近晶液晶组合物的光学开关元件。
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公开(公告)号：US4781857A
公开(公告)日：1988-11-01
申请号：US28691
申请日：1987-03-20
IPC分类号： C07D213/30 , C07D295/10 , C09K19/34 , C09K19/46 , G02F1/13 , C07D211/82
CPC分类号： C07D213/30 , C09K19/3444
摘要： A novel liquid crystal compound exhibiting SC phase which, when added to an optically active liquid crystal, makes the resulting chiral smectic liquid crystal material exhibit superior performances in liquid crystal display elements utilizing the ferroelectricity of the material, and a chiral smectic C composition using the compound. The compound is expressed by the formula ##STR1## wherein X represents F or Cl and R.sub.1 and R.sub.2 each represent a straight chain alkyl group of 1 to 18 carbon atoms.
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25.发明授权2-(alkyloxycarbonyloxyphenyl)-5-alkylpyridine and composition containing same 失效2-（烷氧基羰氧基苯基）-5-烷基吡啶及其组合物
公开(公告)号：US4752413A
公开(公告)日：1988-06-21
申请号：US54394
申请日：1987-05-26
IPC分类号： G02F1/137 , C07D213/30 , C09K19/34 , C09K19/46 , G02F1/141 , C07D211/70 , C07D211/82
CPC分类号： C07D213/30 , C09K19/3444
摘要： A novel liquid crystal compound exhibiting smectic phases and useful for display elements and a chiral smectic liquid crystal composition containing the compound are provided, which compound is expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group of 1 to 20 carbon atoms and X represents H atom or F atom, and which composition comprises at least one kind of the compounds of the formula (I) and an optically active compound.
摘要翻译： 提供了表现出近晶相并可用于显示元件的新型液晶化合物和含有该化合物的手性近晶液晶组合物，该化合物由式（I）表示，其中R 1和R 2各自表示1的烷基 至20个碳原子，X表示H原子或F原子，并且该组成包含至少一种式（I）化合物和光学活性化合物。
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公开(公告)号：US4886622A
公开(公告)日：1989-12-12
申请号：US270865
申请日：1987-08-18
IPC分类号： C07C67/00 , C07C253/00 , C07C255/53 , C07C255/55 , C07C255/57 , C07D213/30 , C07D213/63 , C07D213/65 , C07D239/26 , C07D239/28 , C07D239/30 , C07D239/34 , C09K19/12 , C09K19/20 , C09K19/30 , C09K19/34 , C09K19/46 , G02F1/13
CPC分类号： C07D213/30 , C07C255/00 , C07D213/65 , C07D239/26 , C09K19/2021 , C09K19/3068 , C09K19/3444 , C09K19/3463
摘要： An optically liquid crystalline compound having an extremely large spontaneous polarization value and a chiral smectic liquid crystal composition containing the compound are provided, the compound being expressed by the formula ##STR1## wherein m represents an integer of 2 to 18; l represents an integer of 0 to 12; n represents 0 or 1; R represents an alkyl group or an alkoxy group each of 2 to 20 carbon atoms, a halogen atom or cyano group; and A and B each represent a single bond, ##STR2## wherein X represents hydrogen atom, a halogen atom or cyano group, and a chiral smectic liquid crystal composition containing at least one kind of the above compound.
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公开(公告)号：US4865763A
公开(公告)日：1989-09-12
申请号：US203150
申请日：1988-06-06
IPC分类号： C07D295/10 , C07D213/30 , C07D239/26 , C07D309/06 , C09K19/34 , C09K19/44 , C09K19/46 , G02F1/13
CPC分类号： C07D213/30 , C07D239/26 , C09K19/3463
摘要： A novel liquid crystalline, halogen-containing heterocyclic compound having a characteristic that even when its S.sub.c * phase is supercooled, no other smectic phases appear, and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R.sub.1 and R.sub.2 each represent an alkyl group of 2 to 18 carbon atoms; X represents --N.dbd. or --CH.dbd.; Y represents F or Cl; n represents an integer of 0 to 10; and a symbol * represents an asymmetric carbon atom.
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公开(公告)号：US4818430A
公开(公告)日：1989-04-04
申请号：US98932
申请日：1987-09-15
IPC分类号： C07D237/08 , C09K19/34 , C09K19/52 , C07D237/00 , C07D237/02
CPC分类号： C09K19/3455 , C07D237/08
摘要： A compound useful as a constituent of liquid crystal materials for ferroelectric liquid crystal display elements and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R represents a linear or branched chain alkyl group or alkoxy group each of 1 to 20 carbon atoms, R* represents an optically active group of 3 to 16 carbon atoms and X and Y each represent H or F.
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公开(公告)号：US4784792A
公开(公告)日：1988-11-15
申请号：US942626
申请日：1986-12-16
IPC分类号： C07D213/30 , C07D309/06 , C09K19/34 , C09K19/44 , C09K19/46 , C09K19/54 , G02F1/13 , C07D211/70
CPC分类号： C07D213/30 , C09K19/3444
摘要： A ferroelectric pyridine compound suitable as a liquid crystal for display mode utilizing ferroelectric properties and exhibiting SC* phase at a temperature somewhat higher than room temperature and a liquid crystal composition are provided, which compound is expressed by the formula ##STR1## wherein n represents an integer of 0 to 8, R.sub.1 represents an alkyl group of 2 to 18 carbon atoms, R.sub.2 represents an alkyl group of 1 to 18 carbon atoms and the symbol * indicates that C having the symbol attached thereon is an optically active carbon atom.
摘要翻译： 提供一种铁电吡啶化合物，其适用于利用铁电性能和在稍高于室温的温度下显示SC *相的显示模式的液晶和液晶组合物，该化合物由式（I）表示，其中式 n表示0〜8的整数，R1表示碳原子数2〜18的烷基，R2表示碳原子数为1〜18的烷基，符号*表示其上附有符号的C为光学活性碳原子 。
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30.发明授权Liquid crystal compound having methyleneoxy group and composition containing same 失效具有亚甲基氧基的液晶化合物和含有它们的组合物
公开(公告)号：US4668427A
公开(公告)日：1987-05-26
申请号：US771585
申请日：1985-09-03
IPC分类号： C07C41/00 , C07C43/205 , C07C49/84 , C07C67/00 , C07C69/035 , C07C69/773 , C07C69/96 , C09K19/12 , C09K19/20 , C09K19/46 , G02F1/13 , C07C43/20 , C09K19/06
CPC分类号： C07C49/84 , C07C43/2055 , C09K19/20
摘要： A novel chiral liquid crystal compound having an optically active group which affords a superior response rate when used as a liquid crystal display element, and a liquid crystal composition containing the same are provided, which chiral liquid crystal compound is expressed by the formula ##STR1## wherein R represents an alkyl group of 1 to 18 carbon atoms; R* represents an optically active alkyl group of 4 to 15 carbon atoms; X represents single bond, --O--, ##STR2## Y represents --CH.sub.2 O-- or --OCH.sub.2 --; Z represents single bond, --O--, ##STR3## and m and n each represent 1 or 2.
摘要翻译： 提供了当用作液晶显示元件时具有优异响应率的具有光学活性基团的新型手性液晶化合物和含有该手性液晶组合物的液晶组合物，其中手性液晶化合物由下式表示： 其中R表示1至18个碳原子的烷基; R *表示4〜15个碳原子的光学活性烷基; X表示单键，-O-，Y表示-CH 2 O-或-OCH 2 - ; Z表示单键，-O-，
，m和n各自表示1或2。
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