公开(公告)号：US6010642A

公开(公告)日：2000-01-04

申请号：US916026

申请日：1997-08-21

申请人： Haruyoshi Takatsu ,  Sadao Takehara ,  Kiyofumi Takeuchi ,  Makoto Negishi ,  Norie Osawa ,  Masashi Osawa ,  Shinji Ogawa ,  Hirokazu Yanagihara

发明人： Haruyoshi Takatsu ,  Sadao Takehara ,  Kiyofumi Takeuchi ,  Makoto Negishi ,  Norie Osawa ,  Masashi Osawa ,  Shinji Ogawa ,  Hirokazu Yanagihara

IPC分类号： C07C251/88 ,  C09K19/24 ,  C09K19/30 ,  C09K19/42 ,  C09K19/46 ,  C09K19/06 ,  C09K19/12 ,  C09K19/20 ,  C09K19/34

CPC分类号： C09K19/42 ,  C07C251/88 ,  C09K19/24 ,  C09K19/3086 ,  C09K19/46 ,  C07C2101/14

摘要： Disclosed is to provide an azine derivative as a novel liquid crystal compound, a novel process for the preparation of an asymmetrical azine in a high reaction yield with an extremely small amount of by-products such as symmetrical azines, a nematic liquid crystal composition containing the azine derivative which exhibits a broad driving temperature range and an excellent response for the desired high birefringence index, a liquid crystal display device such as TN-LCD, STN-LCD and TFT-LCD having improved electro-optical properties comprising the liquid crystal composition as a constituent material, and a light-scattering type liquid crystal display system which exhibits a suppressed memory phenomenon, a higher uniformity in turbidity for display and improved display properties and response against temperature change while maintaining and improving the required display properties such as fast switching time, lower voltage driving, higher light-control layer resistivity and higher contrast ratio even in the foregoing light-scattering type liquid crystal display system.

摘要翻译： 公开了提供作为新型液晶化合物的吖嗪衍生物，以极少量副产物如对称吖嗪制备具有高反应产率的不对称吖嗪的新方法，含有 具有宽的驱动温度范围和对期望的高双折射率的优异响应的吖嗪衍生物，具有改进的电光学性能的诸如TN-LCD，STN-LCD和TFT-LCD的液晶显示装置，其包括液晶组合物作为 构成材料和光散射型液晶显示系统，其具有抑制的记忆现象，更高的显示浊度均匀性和改进的显示特性以及对温度变化的响应，同时保持并改善所需的显示特性，如快速切换时间 ，低电压驱动，较高的光控层电阻率和较高的反射率 即使在上述光散射型液晶显示系统中也是如此。

公开(公告)号：US6074467A

公开(公告)日：2000-06-13

申请号：US068340

申请日：1998-05-11

申请人： Isao Tabayashi ,  Kazunari Kawai ,  Sadahiro Inoue ,  Ritsuko Doi ,  Norie Osawa

发明人： Isao Tabayashi ,  Kazunari Kawai ,  Sadahiro Inoue ,  Ritsuko Doi ,  Norie Osawa

IPC分类号： C09B67/08 ,  C09B67/46 ,  C09D11/00

CPC分类号： C09D11/322 ,  C09B67/001 ,  C09B67/0091

摘要： An aqueous jet ink which is provided with a long-term dispersion stability, a stable emission property as a ink-jet stream, and good adhesion of printed images to the recording medium. The present jet ink is constituted as an aqueous liquid dispersion of fine color particles which are formed by coating fine pigment particles (a) with a coat forming resin having carboxyl groups (b). The surface of the color particles is covered with the quaternary carboxyl groups in a form of quaternary ammonium salt and the average volume diameter of the fine color particles is restricted to less than 0.5 .mu.m. An increase rate of the average volume diameter of the fine color particles when the dried ink is dispersed again in water is also restricted to less than 50%.

摘要翻译： PCT No.PCT / JP97 / 03211 Sec。 371日期：1998年5月11日 102（e）日期1998年5月11日PCT 1997年9月11日PCT公布。 公开号WO98 / 11170 日期1998年3月19日一种具有长期分散稳定性，作为喷墨流的稳定发射性能以及印刷图像对记录介质的良好粘附性的水性喷墨油墨。 本发明的喷墨油墨是通过用具有羧基的涂层形成树脂（b）涂覆精细颜料颗粒（a）而形成的细色颗粒的水性分散体。 彩色颗粒的表面被季铵盐形式的季羧基覆盖，细色颗粒的平均体积直径限制在小于0.5μm。 当干燥油墨再次分散在水中时，细色颗粒的平均体积直径的增加率也被限制在小于50％。