Nippon Chemical Industrial Co., Ltd.

Yamanashi University

Nippon Thompson Co., Ltd.

University of Yamanashi

Ushio Chemix Corporation

Toppan Printing Co., Ltd.

Balbis Co., Ltd.

Yuichiro Haramoto

Shigemasa Itabashi

Kazuo Okamoto

Hiroyuki Otsuki

Ayana Takemura

Takamasa Kato

Kohki Hiroshima

Masashi Oota

Kohei Shiramizu

Provided is a lubricant composition including a bicyclic liquid crystal of formula (1), tricyclic liquid crystal compounds of formula (2), and formula (3). The composition is suitable for use in a clean environment, under a high vacuum, under high temperature and a bearing. Rand Rare the same or different from each other, and each is —OCHCHCH(R')CHCHOR. Rand Rare the same or different from each other, and each is —OR. R, R, Rand Rare the same or different from each other, and each is hydrogen or a group —OR. Rand Rare the same or different from each other, and each is —OCHCHCH(R')CHCHOR. R, R, R, and Rare the same or different from each other, and each is hydrogen or —OCHCHCH(R′)CHCHOR. R is a linear or branched CH, 1≤n≤20, and R′ is methyl or ethyl.

Electrically-conductive lubricant

Provided is a lubricant composition including a bicyclic liquid crystal of formula (1), and a tricyclic liquid crystal compound of formula (2), and having a mixing mass ratio of the bicyclic liquid crystal compound and tricyclic liquid crystal compound of 95:5 to 15:85. The composition is suitable for use in a clean environment, under a high vacuum, under high temperature and a bearing. Rand Rare the same or different from each other, and each is &#x2014;OCHCHCH(R')CHCHOR Rand Rare the same or different from each other, and each is &#x2014;OR. R, R, Rand Rare the same or different from each other, and each is hydrogen or &#x2014;OR. R is a linear or branched CH, 1&#x2264;n&#x2264;20 and R&#x2032; is methyl or ethyl.

This is to provide an electrically-conductive lubricant having characteristics in combination that it shows liquid crystallinity in a wide temperature range, retains low dynamic friction coefficient, has electrical-conductivity, has almost no loss due to evaporation, decomposition and the like, has a clean appearance, and emits fluorescence, and can find deterioration or leakage immediately. This electrically-conductive lubricant comprises at least one kind of the compound (1) represented by the formula (1): 12:8 wherein,

There are provided: a proton transporting material that improves mechanical characteristics of a sulfonated liquid crystalline polymer material, can be kept as a membrane even though it is made a solid state while maintaining a molecular arrangement of a liquid crystalline state, and is suitable for electrolyte membranes of fuel cells etc.; an ion exchange membrane, a membrane electrolyte assembly (MEA), and a fuel cell that use the proton transporting material; a starting material for the proton transporting material. The proton transporting material has a molecular structure produced by crosslinking the sulfonated liquid crystalline polymer material with a crosslinking agent having two or more functional groups in sites except that of the sulfonic acid group.

Proton transporting material, starting material thereof, ion exchange membrane, membrane electrolyte assembly, and fuel cell using the same

A lubricant additive comprising a rod-like liquid crystal compound possessing a cation group and an anion is disclosed. The rod-like liquid crystal compound is typically a specific type of 4-(1,3-diox-2-yl)pyridinium salt and exhibits an effect of reducing the coefficient of friction if added in a small amount. A lubricant composition and a grease composition comprising the lubricant additive are also disclosed.

Lubricant additive, lubricant composition and grease composition

An liquid crystalline organic semiconductor material practical as an organic semiconductor is provided. The material is a liquid crystal composition having a smectic liquid crystal phase. The liquid crystalline organic semiconductor material has a distyrylbenzene structure of formula (1). When heated to a temperature range for the smectic liquid crystal phase followed by being cooled, the material takes on a solid state as a result of phase transition from the smectic phase. Wherein Rand R, which may be the same or different, each represent an alkyl group, an alkoxy group or a group of general formula (2): Wherein Rrepresents a hydrogen atom or a methyl group; and B represents &#x2014;(CH)&#x2014;, &#x2014;(CH)&#x2014;O&#x2014;, &#x2014;CO&#x2014;O&#x2014;(CH), &#x2014;CO&#x2014;O&#x2014;(CH)&#x2014;O&#x2014;, &#x2014;CH&#x2014;CH&#x2014;O&#x2014; or &#x2014;CO&#x2014;.

Liquid crystalline organic semiconductor material, and semiconductor element or information recording medium using the same

A memory device of the present invention is characterized by a memory device for storing information by making use of molecular alignment of a liquid crystal compound in a liquid crystalline state formed by spot irradiation with a laser beam to carry out a selective heat treatment on an electroconductive liquid crystal semiconductor material layer containing a liquid crystal compound, comprising: a first electrode group including a plurality of linear electrodes which are parallel to each other; an electroconductive liquid crystal semiconductor material layer formed in such a manner that the layer covers the first electrode group, the layer containing a liquid crystal compound having a long linear conjugate structural moiety and exhibiting a smectic phase as a liquid crystal phase; and a second electrode group formed on the electroconductive liquid crystal semiconductor material layer and including a plurality of linear transparent electrodes being parallel to each other and extend in a direction intersecting with the first electrode group.

Memory device, data recording method and IC tag

A memory device includes first electrodes, second electrodes, third electrodes, heaters, and memory cells between the first electrodes and the heaters. Each third electrode is provided on the heaters, and each second electrode is provided at a side portion of the heaters. Each memory cell contains an electroconductive liquid crystal compound having a long linear conjugate structure and exhibiting a smectic phase as a liquid crystal phase. Information can be written in the memory cells by selectively heating the heaters to cause the corresponding memory cells to have both electroconductivity and optical anisotropy.

Memory device, data recording method, and IC tag

The present invention provides a conductive liquid-crystal material having features including that, for example, excellent conductivity is exhibited at a low threshold voltage of about 5 V even in a room temperature range, the value of resistance varies with an applied voltage, the current density rises sharply at a voltage of about 5 V, and an excellent charge mobility is exhibited, as well as a process for producing the conductive liquid-crystal material, a liquid-crystal composition which is used for the conductive liquid-crystal material, a liquid-crystal semiconductor element, and an information recording medium. The conductive liquid-crystal material is characterized by being a liquid-crystal composition composed of at least two components having a smectic phase as a liquid-crystal phase, wherein at least one component is selected from distyryl derivatives represented by the following general formula (1) and the liquid-crystal composition comes into a solid state formed by a phase transition from the smectic phase. (In the formula, Rand Rindependently represent a linear or branched alkyl group or an alkoxyl group, and Rand Rmay be the same group or different groups.)

Conductive liquid-crystal material, process for producing the same, liquid-crystal composition, liquid crystal semiconductor element, and information memory medium

The present invention provides a benzene derivative having a long, linear conjugated structure, the benzene derivative being capable of exhibiting a satisfactory ability to transport charge without photoexcitation, a process for producing the benzene derivative, and a liquid-crystal material and a charge-transport material containing the benzene derivative having a long, linear conjugated structure. That is, a benzene derivative having a long, linear conjugated structure represented by general formula (1): (wherein Rrepresents a methyl group or a hydrogen atom, A represents an alkylene group, &#x2014;CO&#x2014;O&#x2014;(CH)&#x2014;, &#x2014;CH&#x2014;CH&#x2014;, or &#x2014;CO&#x2014;).

Benzene derivative having long, linear conjugated structure, process for producing benzene derivative, and charge-transport material

The present invention provides, in a method for transporting charge using the molecular orientation in a liquid-crystalline state, a novel benzene derivative having a long, linear conjugated structure expected to have satisfactory charge-transport properties without photoexcitation, a process for producing the benzene derivative, and a liquid-crystal material including the benzene derivative. The benzene derivative having a long, linear conjugated structure is represented by general formula (1): 

Benzene derivative having long, linear conjugated structure, process for producing benzene derivative, and liquid-crystal material

An electric charge transport method with a high current density and excellent charge transporting capability is provided. Specifically, the charge transport method includes applying a voltage to a liquid crystalline compound in a smectic B liquid crystal phase, which liquid crystalline compound exhibits a smectic B phase as a liquid crystal phase, or applying a voltage to a liquid crystalline compound in a solid state formed as a result of phase transition from a smectic phase, which liquid crystalline compound exhibits the smectic phase as a liquid crystal phase.

Growing community of inventors

Kofu, Japan

Yuichiro Haramoto