PIPERIDINE DERIVATIVE, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE

• Main Authors: OKUMURA KAZUO, SAWADA MICHIKO
• Format: Patent
• Language: English; Japanese
• Published: 18.07.2019
• Subjects: ADHESIVES; CHEMISTRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; FREQUENCY-CHANGING; HETEROCYCLIC COMPOUNDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC CHEMISTRY; PAINTS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

To provide: a compound having an effect for preventing photolysis of a liquid crystal composition and high solubility in a liquid crystal composition; a liquid crystal composition containing the compound; and a liquid crystal display device containing the composition.SOLUTION: There are provided: a compound represented by M(Z-Q)m; a liquid crystal composition containing the compound; and a liquid crystal display device containing the composition, wherein m is 3, 4 or 5; M is a trivalent, tetravalent or pentavalent cyclic group, an organic group, or a group constituted by trivalent nitrogen; Z is a single bond, -O-, -COO- or -OCO-; Q is a monovalent group represented by the formula (Q-1), in the formula (Q-1), Ris a hydrogen atom, -O-, -OH, an alkyl group, an alkenyl group or the like, the terminal group (-CH) may be substituted with -NHRor -NRR, where, each of R, Rand Ris an alkyl group.SELECTED DRAWING: None 【課題】液晶組成物の光分解を防ぐ効果を有し、液晶組成物への高い溶解度を有する化合物、この化合物を含む液晶組成物、この組成物を含む液晶表示素子を提供する。【解決手段】Ｍ（Ｚ−Ｑ）ｍで表される化合物、この化合物を含む液晶組成物、この組成物を用いた液晶表示素子である。ここで、ｍは３、４、または５であり；Ｍは、三価、四価、または五価の環状基、有機基、または三価の窒素から成る基であり；Ｚは、単結合、−Ｏ−、−ＣＯＯ−、または−ＯＣＯ−であり；Ｑは、式（Ｑ−１）で表される一価基であり、式（Ｑ−１）において、Ｒａは、水素、−Ｏ・、−ＯＨ、アルキル、アルケニルなどであり、末端基（−ＣＨ３）は、−ＮＨＲ２または−ＮＲ３Ｒ４で置き換えられてもよく、ここでＲ２、Ｒ３およびＲ４はアルキルである。【選択図】なし