公开(公告)号：US20030064173A1

公开(公告)日：2003-04-03

申请号：US10140118

申请日：2002-05-08

申请人： Merck Patent GmbH

发明人： David Coates ,  Owain Llyr Parri ,  Simon Greenfield ,  Martin David Tillin ,  Mark John Goulding ,  Patrick Nolan

IPC分类号： C09K019/38 ,  C09K019/12 ,  G02F001/1333 ,  C09K019/52

CPC分类号： C09K19/3469 ,  C09K19/12 ,  C09K19/14 ,  C09K19/2007 ,  C09K19/322 ,  C09K19/3444 ,  C09K19/38 ,  C09K19/544 ,  C09K2019/0448 ,  C09K2019/0481 ,  Y10T428/10 ,  Y10T428/1077

摘要： To improve switching times, especially at low temperatures, one or more reactive liquid crystalline compounds is added to a liquid crystal mixture used in an electrooptical system. The electrooptical system comprises a PDLC film comprising a liquid crystal mixture forming micro-droplets in an optically isotropic, transparent polymer matrix between 2 electrode layers. The reactive liquid crystalline compounds are of formula II, RnullnullGnullnullRnull, wherein Rnull, Gnull and Rnull are as defined herein. The liquid crystal mixture comprises one or more compounds of the formula I 1 wherein R, A1, A2, Z1, Z2, X1, X2, Q, Y and n are as defined herein.

摘要翻译： 为了改善切换时间，特别是在低温下，将一种或多种反应性液晶化合物加入到用于电光学系统的液晶混合物中。 电光系统包括PDLC膜，其包括在2个电极层之间的光学各向同性的透明聚合物基质中形成微滴的液晶混合物。 反应性液晶化合物具有式II，R'-G'-R“，其中R'，G'和R”如本文所定义。 液晶混合物包含一种或多种式I的化合物，其中R，A1，A2，Z1，Z2，X1，X2，Q，Y和n如本文所定义。

公开(公告)号：US20010016238A1

公开(公告)日：2001-08-23

申请号：US09750102

申请日：2000-12-29

申请人： Merck Patent GmbH

发明人： David Coates ,  Owain Llyr Parri ,  Simon Greenfield ,  Martin David Tillin ,  Mark John Goulding ,  Patrick Nolan

IPC分类号： C09K019/34 ,  C09K019/12 ,  C09K019/30 ,  G02F001/1333 ,  C09K019/00

CPC分类号： C09K19/3469 ,  C09K19/12 ,  C09K19/14 ,  C09K19/2007 ,  C09K19/322 ,  C09K19/3444 ,  C09K19/38 ,  C09K19/544 ,  C09K2019/0448 ,  C09K2019/0481 ,  Y10T428/10 ,  Y10T428/1077

摘要： To improve switching times, especially at low temperatures, one or more reactive liquid crystalline compounds is added to a liquid crystal mixture used in an electroptical system. The electroptical system comprises a PDLC film comprising a liquid crystal mixture forming micro- droplets in an optically isotropic, transparent polymer matrix between 2 electrode layers, one of the refractive indices of the liquid crystal mixture is matched to the refractive index of the polymer matrix, the PDLC film exhibits an electrically switching transparency essentially independent of the polarization of the incident light, the precursor of the PDLC film comprises one or more monomers, oligomers and/or prepolymers and a photoinitiator, and is cured photoradically, the liquid crystal mixture comprises one or more compounds of the formula I 1 nullwherein R, A1, A2, Z1, Z2, X1, X2, Q, Y and n are as defined herein. 2 nullindependently of one another, are trans-1,4-cyclohexylene, 1,4-phenylene, 2-fluoro-1,4-phenylene, 3-fluoro-1,4-phenylene, 2,3-difluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene and one of 3 nullmay also be pyrimidine-2,5-diyl, pyridine-2,5-diyl or trans-1,3-dioxane-2,5-diyl, X1 and X2, independently from one another, are H or F, Q is nullCF2, nullOCF2, nullC2F4, nullOC2F4 or a single bond, Y is nullH, nullF, nullCl or nullCN, n is 0, 1 or 2 and R is alkyl having up to 13 C atoms, in which one or two non-adjacent CH2 groups can also be replaced by nullOnull and/or nullCHnullCHnullnullcharacterized in that the liquid crystal mixture additionally contains one or more reactive liquid crystalline compounds in order to obtain improved switching times especially at low temperatures.

摘要翻译： 为了改善切换时间，特别是在低温下，将一种或多种反应性液晶化合物加入到用于光电系统的液晶混合物中。 光电系统包括PDLC膜，其包含在2个电极层之间的光学各向同性的透明聚合物基质中形成微滴的液晶混合物，液晶混合物的折射率之一与聚合物基质的折射率相匹配， PDLC膜显示基本上与入射光的极化无关的电切换透明体，PDLC膜的前体包含一种或多种单体，低聚物和/或预聚物以及光引发剂，并且在光电偶联下固化，液晶混合物包含一个 或更多的式I化合物，其中R，A1，A2，Z1，Z2，X1，X2，Q，Y和n如本文所定义。 反式-1,4-亚环己基，1,4-亚苯基，2-氟-1,4-亚苯基，3-氟-1,4-亚苯基，2,3-二氟-1,4-亚苯基， 亚苯基或3,5-二氟-1,4-亚苯基，也可以是嘧啶-2,5-二基，吡啶-2,5-二基或反式-1,3-二恶烷-2,5-二基，X1 和X 2独立地为H或F，Q为-CF 2，-OCF 2，-C 2 F 4，-OC 2 F 4或单键，Y为-H，-F，-Cl或-CN，n为0,1 或2，R是具有至多13个C原子的烷基，其中一个或两个不相邻的CH 2基团也可被-O-和/或-CH = CH-代替，其特征在于液晶混合物另外含有一个或 更多的反应性液晶化合物，以获得改善的切换时间，特别是在低温下。

公开(公告)号：US20030026922A1

公开(公告)日：2003-02-06

申请号：US10184891

申请日：2002-07-01

申请人： Merck Patent GmbH

发明人： Alison Linda May ,  Simon Greenfield ,  Mark John Goulding ,  Owain Llyr Parri

IPC分类号： C09K019/58 ,  C09K019/34 ,  C09K019/32 ,  C09K019/30 ,  C09K019/20 ,  C09K019/38 ,  G02F001/133

CPC分类号： C07D493/04 ,  C09K19/588 ,  C09K2019/0448 ,  C09K2019/3095 ,  C09K2019/3408 ,  Y10T428/10

摘要： The invention relates to chiral compounds of formula I, 1 to liquid crystal mixtures comprising at least one chiral compound of formula I, to chiral linear or crosslinked liquid crystal polymers obtainable by polymerizing a polymerizable mixture comprising at least one chiral compound of formula I, to the use of chiral compound of formula I and mixtures and polymers obtained thereof in liquid crystal displays, active and passive optical elements, adhesives, synthetic resins with anisotropic mechanical properties, cosmetic and pharmaceutical compositions, diagnostics, liquid crystal pigments, for decorative and security applications, nonlinear optics, optical information storage or as chiral dopants, and to a liquid crystal display comprising a mixture comprising at least one chiral compound of formula I.

摘要翻译： 本发明涉及式I的手性化合物，其包含至少一种式I的手性化合物的液晶混合物与通过将包含至少一种式I的手性化合物的可聚合混合物聚合的手性线性或交联的液晶聚合物与 在液晶显示器，有源和无源光学元件，粘合剂，具有各向异性机械性能的合成树脂，化妆品和药物组合物，诊断，液晶颜料，用于装饰和安全应用的液晶显示器中获得的式I手性化合物及其混合物和聚合物， 非线性光学，光学信息存储或手性掺杂剂，以及包含至少一种式I手性化合物的混合物的液晶显示器。