公开(公告)号：US6056892A

公开(公告)日：2000-05-02

申请号：US34403

申请日：1998-03-04

申请人： Yasue Yoshioka ,  Masahiro Johno ,  Tomoyuki Yui ,  Takakiyo Mine

发明人： Yasue Yoshioka ,  Masahiro Johno ,  Tomoyuki Yui ,  Takakiyo Mine

IPC分类号： C07C67/56 ,  C09K19/02 ,  C09K19/20 ,  C09K19/52 ,  B01D15/00

CPC分类号： C09K19/0266 ,  C07C67/56 ,  C09K19/00 ,  C09K19/2021

摘要： A process for purifying an anti-ferroelectric liquid crystal or a ferrielectric liquid crystal, which comprises the following steps 1 to 4,step 1: preparing a liquid crystal solution of an anti-ferroelectric liquid crystal or a ferrielectric liquid crystal to be purified in an aromatic hydrocarbon solvent,step 2; bringing the liquid crystal solution into contact with at least one adsorbent selected from the group consisting of zeolite, alumina and silica gel to separate the liquid crystal solution from the adsorbent,step 3; precision-filtering the resultant liquid crystal solution, andstep 4; removing the solvent from an obtained filtrate and recovering a purified liquid crystal,according to which process, there can be easily obtained a high-purity liquid crystal which shows a specific resistance value of at least 5.times.10.sup.12 .OMEGA..multidot.cm and a small thermal decomposition ratio, and which is therefore suitable as a raw material for a liquid crystal display device.

摘要翻译： 一种用于纯化反铁电液晶或电介质液晶的方法，其包括以下步骤1至4，步骤1：制备待纯化的反铁电液晶或电介质液晶的液晶溶液 芳烃溶剂，步骤2; 使液晶溶液与选自沸石，氧化铝和硅胶的至少一种吸附剂接触，以将液晶溶液与吸附剂分离，步骤3; 对所得液晶溶液进行精密过滤，步骤4; 从所得滤液中除去溶剂并回收纯化的液晶，根据该方法，可以容易地获得显示比电阻值为至少5×10 12欧米伽×厘米并具有小的热分解比的高纯度液晶，以及 因此适合作为液晶显示装置的原料。

公开(公告)号：US5374375A

公开(公告)日：1994-12-20

申请号：US905193

申请日：1992-06-26

申请人： Tomoyuki Yui ,  Masahiro Johno ,  Toshio Watanabe ,  Masamichi Mizukami ,  Yoshihisa Arai

发明人： Tomoyuki Yui ,  Masahiro Johno ,  Toshio Watanabe ,  Masamichi Mizukami ,  Yoshihisa Arai

IPC分类号： C07C69/773 ,  C07C69/94 ,  C09K19/20 ,  C09K19/12 ,  C07C69/76 ,  C09K19/52

CPC分类号： C09K19/2021 ,  C07C69/94

摘要： A liquid crystal compound represented by formula (I), ##STR1## wherein A represents --C.sub.3 H.sub.7, --C.sub.4 H.sub.9 or --C.sub.8 H.sub.17 ; when A is --C.sub.3 H.sub.7, m is an integer of 8, 10, 12 or 14; and when A is --C.sub.4 H.sub.9 or --C.sub.8 H.sub.17, m is an integer of 7 to 14,said compound having an antiferroelectric phase.

摘要翻译： 由式（I）表示的液晶化合物，其中A表示-C 3 H 7，-C 4 H 9或-C 8 H 17; 当A为-C 3 H 7时，m为8,10,12或14的整数; 当A为-C4H9或-C8H17时，m为7-14的整数，所述化合物具有反铁电相。

公开(公告)号：US5939586A

公开(公告)日：1999-08-17

申请号：US962005

申请日：1997-10-31

申请人： Hiroshi Mineta ,  Tomoyuki Yui

发明人： Hiroshi Mineta ,  Tomoyuki Yui

IPC分类号： C01B17/45 ,  C07C51/60 ,  C07C65/24 ,  C07C67/14 ,  C07C69/94 ,  C09K19/20 ,  C07C51/58 ,  C07C69/76

CPC分类号： C01B17/4584 ,  C07C51/60 ,  C07C67/14

摘要： A process for the production of an intermediate for a liquid crystal compound, which comprises reacting an alkyloxybiphenylcarboxylic acid with purified thionyl chloride substantially free of sulfuryl chloride, the thionyl chloride being obtained by adding phenol, etc., to thionyl chloride, heating the mixture and distilling the resultant mixture; and a process for the production of a liquid crystal compound from the above intermediate. According to the present invention, thionyl chloride can be easily purified, and a liquid crystal compound having a very high purity can be obtained by the use of the purified thionyl chloride.

摘要翻译： 一种制备液晶化合物中间体的方法，包括使烷基氧基联苯基羧酸与基本上不含磺酰氯的纯化亚硫酰氯反应，将亚硫酰氯加入到亚硫酰氯中，加热混合物和 蒸馏得到的混合物; 以及从上述中间体制造液晶化合物的方法。 根据本发明，可以容易地纯化亚硫酰氯，通过使用纯化的亚硫酰氯可以得到纯度非常高的液晶化合物。

公开(公告)号：US5482651A

公开(公告)日：1996-01-09

申请号：US25571

申请日：1993-03-03

申请人： Hiroshi Mineta ,  Tomoyuki Yui ,  Yoshihiro Gocho ,  Takahiro Matsumoto

发明人： Hiroshi Mineta ,  Tomoyuki Yui ,  Yoshihiro Gocho ,  Takahiro Matsumoto

IPC分类号： C07D319/06 ,  C07D309/06 ,  C09K19/02 ,  C09K19/34

CPC分类号： C09K19/0266 ,  C07D309/06 ,  C09K19/3402 ,  C09K2019/3422

摘要： An antiferroelectric liquid crystal substance represented by the following general formula (1) ##STR1## wherein R represents a straight-chain alkyl group of 6-10 carbon atoms; X represents ##STR2## when X is ##STR3## Y is any of CH.sub.3, CF.sub.3 and C.sub.2 H.sub.5, L is 0 or an integer of 5 to 8, m is 0 or 1, and n is an integer of 1 to 10; when X is ##STR4## Y is any of CH.sub.3, CF.sub.3 and C.sub.2 H.sub.5, and (1) when Y is CH.sub.3, L is 0 or an integer of 5 to 8, m is 0 or 1, and n is an integer of 1 to 10, (2) when Y is CF.sub.3, L is an integer of 5 to 8, m is 1, and n is an integer of 1 to 10 and (3) when Y is C.sub.2 H.sub.5, L is 0, m is 0, and n is an integer of 4-10.

摘要翻译： 由下列通式（1）表示的反铁电液晶物质（1）其中R表示6-10个碳原子的直链烷基; X表示，Y表示CH3，CF3，C2H5，L为0或5〜8的整数，m为0或1，n为1〜10的整数。 当X为Y 3时，L为0或5〜8的整数，m为0或1，n为1〜10的整数，（2）Y为CF 3时，L为5〜 8，m为1，n为1〜10的整数，（3）Y为C2H5时，L为0，m为0，n为4-10的整数。

公开(公告)号：US5275757A

公开(公告)日：1994-01-04

申请号：US985319

申请日：1992-12-04

申请人： Hiroshi Mineta ,  Tomoyuki Yui ,  Takahiro Matsumoto

发明人： Hiroshi Mineta ,  Tomoyuki Yui ,  Takahiro Matsumoto

IPC分类号： C07C69/773 ,  C07D319/06 ,  C09K19/02 ,  C09K19/34 ,  C07C69/76 ,  G02F1/13

CPC分类号： C09K19/0266 ,  C07D319/06 ,  C09K19/3402 ,  C09K2019/3422

摘要： Novel anti-ferroelectric liquid crystal compounds represented by the following general formula (I) and a liquid crystal display element wherein such a compound is used. ##STR1## Ph represents a phenylene group, R represents a straight-chain alkyl group having 6 to 10 carbon atoms,X represents an oxygen atom or a single bond provided that when X is an oxygen atom, L is an integer of 5 to 8, m is 1 and n is an integer of 1 to 7, or L and m are zero (0) and n is an integer of 6 to 8, and when X is a single bond,L is an integer of 5 to 8, m is 1 and n is an integer of 1 to 7, andC* represents an asymmetric carbon atom.

摘要翻译： 由以下通式（I）表示的新型反铁电液晶化合物和使用这种化合物的液晶显示元件。 （*化学结构*）-Ph-COO-C * H（CF 3）（CH 2）L（O）m C n H 2n + 1 Ph表示亚苯基，R表示碳原子数6〜10的直链烷基，X表示 氧原子或单键，条件是当X为氧原子时，L为5至8的整数，m为1，n为1至7的整数，或L和m为零（0），n为 6〜8的整数，X为单键时，L为5〜8的整数，m为1，n为1〜7的整数，C *为不对称碳原子。

公开(公告)号：US5756816A

公开(公告)日：1998-05-26

申请号：US788465

申请日：1997-01-29

申请人： Yuki Motoyama ,  Tomoyuki Yui

发明人： Yuki Motoyama ,  Tomoyuki Yui

IPC分类号： C07C67/317 ,  C07C67/31 ,  C07C69/88 ,  C07C69/78

CPC分类号： C07C67/31 ,  Y02P20/55

摘要： A process for the production of a phenol derivative of the formula (2), which comprises subjecting a diester compound of the formula (1) in which a hydroxyl group is protected by an acyl group, to a reaction for removal of protection, wherein the reaction is carried out in the presence of an aliphatic amine as a protection-removal agent, ##STR1## wherein X is hydrogen or fluorine, Y is --CH.sub.3 or --CF.sub.3, Q is an alkyl group having 1 to 4 carbon atoms, p is 0 or 1, m is an integer of 2 to 7, n is an integer of at least 1, and C* is an asymmetric carbon, the process enabling to obtain the phenol derivative of the formula (2) useful as an intermediate for a liquid crystal compound with ease and at high purity.

摘要翻译： 一种制备式（2）的苯酚衍生物的方法，该方法包括将其中羟基被酰基保护的式（1）的二酯化合物进行反应以除去保护，其中 反应在脂族胺作为保护去除剂的存在下进行，Y是-CH 3或-CF 3，Q是具有1至4个碳原子的烷基，p是0或1，m 为2〜7的整数，n为1以上的整数，C *为不对称碳，能够容易地得到作为液晶性化合物的中间体的式（2）的酚衍生物的方法 高纯度。

公开(公告)号：US06239316B1

公开(公告)日：2001-05-29

申请号：US09365844

申请日：1999-08-03

申请人： Takakiyo Mine ,  Tomoyuki Yui

发明人： Takakiyo Mine ,  Tomoyuki Yui

IPC分类号： C07C4310

CPC分类号： C07C43/13 ,  C12P7/02 ,  C12P41/004

摘要： An R-configuration or S-configuration optically active secondary alcohol of the general formula (1), CH3C*H(OH)(CH2)mOCH(CnH2n+1)2  (1) wherein C* is an asymmetric carbon atom, m is an integer of 1 to 3, and n is an integer of 1 to 3, and a process for the production thereof, comprising optical resolution of a corresponding racemic alcohol by asymmetric trans-esterification, specifically using a lipase derived from Candida antarcia microorganism. The present invention can provide the novel optically active secondary alcohol having a methyl group on an asymmetric carbon and an alkoxy terminal having branched alkyl chains formed of the same numbers of carbon atoms, and an economical and simple process for the production thereof.

摘要翻译： 通式（1）的R构型或S-构型光学活性仲醇，其中C *为不对称碳原子，m为1〜3的整数，n为1〜3的整数， 其制备方法包括通过不对称反式酯化反应相应的外消旋醇的光学拆分，特别是使用衍生自念珠菌（Candida antarcia）微生物的脂肪酶。 本发明可以提供在不对称碳上具有甲基的新颖的光学活性仲醇和具有相同数目的碳原子形成的支链烷基链的烷氧基末端，以及其经济且简单的制备方法。

公开(公告)号：US5587106A

公开(公告)日：1996-12-24

申请号：US467898

申请日：1995-06-06

申请人： Masamichi Mizukami ,  Tomoyuki Yui ,  Yoshihisa Arai ,  Yoshihiro Gocho

发明人： Masamichi Mizukami ,  Tomoyuki Yui ,  Yoshihisa Arai ,  Yoshihiro Gocho

IPC分类号： C07D239/28 ,  C09K19/02 ,  C09K19/34 ,  C07D239/02 ,  G02F1/13

CPC分类号： C07D239/28 ,  C09K19/0266 ,  C09K19/3463

摘要： Anti-ferroelectric liquid crystal substances which are represented by the formula (1): ##STR1## wherein R is a straight chain alkyl group having 6 to 10 carbon atoms,X is hydrogen or fluorine atom,Z is --CH.sub.3, --CF.sub.3 or --C.sub.2 H.sub.5, andC** stands for an asymmetric carbon atom, andl, m, and n are 0 or a certain integer depending on the specific kinds of X and Z,and the use of the substances for liquid crystal display devices.

摘要翻译： （1）表示的抗铁电液晶物质：（1）C ** H（Z）（CH2）l（O）mCnH21 + 1其中R是直链烷基，具有6〜 10个碳原子，X是氢或氟原子，Z是-CH 3，-CF 3或-C 2 H 5，C **表示不对称碳原子，l，m和n是0或一定的整数，取决于具体的种类 的X和Z，以及使用液晶显示装置的物质。

公开(公告)号：US5078477A

公开(公告)日：1992-01-07

申请号：US433261

申请日：1989-11-08

申请人： Masahiro Jono ,  Yukio Ouchi ,  Tomoyuki Yui

发明人： Masahiro Jono ,  Yukio Ouchi ,  Tomoyuki Yui

IPC分类号： G02F1/141

CPC分类号： G02F1/1416

摘要： A ferroelectric liquid crystal cell comprising a ferroelectric liquid crystal having an antiferro-electric phase (S.sub.m C.sub.A.sup.*) or its composition and a pair of substrates having electrodes and holding said liquid crystal or its composition therebetween, characterized in that the layer structure of said liquid crystal in the antiferro-electric phase (S.sub.m C.sub.A.sup.*) has once been changed from a chevron structure to a bookshelf structure by application of a voltage to the electrodes.

公开(公告)号：US5942646A

公开(公告)日：1999-08-24

申请号：US968261

申请日：1997-11-12

申请人： Takakiyo Mine ,  Tomoyuki Yui

发明人： Takakiyo Mine ,  Tomoyuki Yui

IPC分类号： C12P41/00 ,  C07B53/00 ,  C07C43/13 ,  C07C31/34

CPC分类号： C07C43/137

摘要： A novel R-configuration or S-configuration optically active alcohol of the formula (1),CF.sub.3 C*H(OH)(CH.sub.2).sub.m OCH.sub.2 CH.sub.n F.sub.3-n(1)wherein C* is an asymmetric carbon atom, m is an integer of 2 to 7, and n is an integer of 0 to 2, and a process for the production of the optically active alcohol from a monohalogenated alkyl having a fluoroalkoxy group at a terminal. The novel optically active alcohol, provided by the present invention, having a trifluoromethyl group on an asymmetric carbon atom and a fluoroalkoxy group at a terminal, is useful as a raw material for the production of a novel liquid crystal compound.

摘要翻译： 式（1）的新型R构型或S-构型光学活性醇CF 3 C * H（OH）（CH 2）m OCH 2 CH 3 F 3 -N（1）其中C *为不对称碳原子，m为2〜 7，n为0〜2的整数，以及由末端具有氟代烷氧基的一卤代烷基制造光学活性醇的方法。 本发明提供的具有不对称碳原子上的三氟甲基和末端的氟代烷氧基的新型光学活性醇可用作制备新型液晶化合物的原料。