Jnc Corporation

Jnc Petrochemical Corporation

Sumitomo Metal Mining Company, Ltd.

Chisso Petrochemical Corporation

Chisso Corporation

The Nippon Synthetic Chemical Industry Co., Ltd.

Kyoritsu Chemical Co., Ltd.

Kwansei Gakuin Educational Foundation

Sk Materials Jnc Co., Ltd.

Hiroyuki Tanaka

Norikatsu Hattori

Masaya Yukinobu

Masayuki Saito

Takayoshi Yanai

Shigeru Kibe

Masakazu Yano

Kazuhiro Ogita

Hiroshi Endou

Fumitaka Kondou

Junji Ishii

Kenji Kato

Yoshimasa Furusato

Yasuyuki Sasada

Takuji Hatakeyama

Mitsuo Shibutani

Mayumi Goto

Tomohiro Yano

Sayaka Fujimori

Takahiro Kubo

Satoshi Yamazaki

Kouki Sagou

Kazushi Shiren

Kenji Hirata

Taketo Maeda

Shingo Murakami

Yuki Murayama

Akihiro Takata

Yasuo Tsukui

Yoshiaki Matsumura

Yuki Kumagai

Akihide Mizutani

Takahiro Minowa

Ayako Mori

The purpose of the present invention is to provide a process for producing nickel powder capable of obtaining fine nickel powder in wet process, and also, capable of decreasing content of impurities by medicament (additive) used in crystallization of nickel powder which is reduction reaction. 1. A process for producing nickel powder, comprising a crystallization step for obtaining nickel crystal powder by reduction reaction in reaction solution in which at least water-soluble nickel salt, reducing agent, alkali hydroxide, if necessary metal salt of metal more noble than nickel, and water are mixed, and which is blended with sulfur-containing compound in advance, wherein the reducing agent is hydrazine (N2H4), the sulfur-containing compound is a compound having any of sulfur-containing functional group structure represented by &#x2014;SH, sulfur-containing functional group structure represented by &#x2014;S&#x2014;S&#x2014;, sulfur-containing functional group structure represented by &#x2014;O&#x2014;S(&#x2550;S)(&#x2550;O)&#x2014;O&#x2014; at least in molecule, and a ratio (A) of substance quantity of the sulfur-containing compound and nickel in the reaction solution ((molar number of the sulfur-containing compound/molar number of nickel)*10) [molar ppm], an effective multiplication factor (B) of the sulfur-containing functional group of the sulfur-containing compound [magnification] (&#x2014;SH: 1, &#x2014;S&#x2014;S&#x2014;: 2, &#x2014;O&#x2014;S(&#x2550;S)(&#x2550;O)&#x2014;O&#x2014;: 1), and a ratio (C) of substance quantity of the metal salt of metal more noble than nickel and nickel ((molar number of metal salt of metal more noble than nickel/molar number of nickel)*10) [molar ppm] is in a range of 0.1&#x2264;A*B&#x2264;0.75C+30 (0&#x2264;C&#x2264;100).

Process for producing nickel powder

A process for producing nickel powder capable of obtaining inexpensive, and also, high-performance nickel powder, even when using wet process. A process for producing nickel powder, including a crystallization step for obtaining nickel crystal powder by reductive reaction in reaction solution in which at least water-soluble nickel salt, metal salt of metal more noble than nickel, reducing agent, alkali hydroxide, amine compound, and water are mixed, wherein the reducing agent to be mixed in the crystallization step is hydrazine, the amine compound is autolysis inhibitor of hydrazine, and contains two or more primary amino groups in molecule, or contains one primary amino group and one or more secondary amino groups in molecule, and ratio of molar number of the amine compound with respect to molar number of nickel in the reaction solution is in a range of 0.01 mol % to 5 mol %.

To provide a polar compound having high chemical stability, a high ability to align liquid crystal molecules, and high solubility in a liquid crystal composition, and a high voltage holding ratio of a liquid crystal display element. A compound represented by Formula (1):  

Polymerizable polar compound, liquid crystal composition and liquid crystal display element

Provided are liquid crystal compounds satisfying at least one of physical properties such as high stability to heat or light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, large optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and good compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. The compound is represented by formula (1): 

Compound having fluorodibenzofuran ring, liquid crystal composition and liquid crystal display device

Shown is a compound represented by formula (1). For example, Ris alkyl having 1 to 15 carbons; MES is a mesogen group having at least one ring; Spis a single bond or alkylene having 1 to 10 carbons; Mis methyl; and R, Mand Mare hydrogen. 

Polymerizable polar compound, liquid crystal composition and liquid crystal display device

Provided is a polar compound having high chemical stability, high capability of aligning liquid crystal molecules, high solubility in a liquid crystal composition, and a large voltage holding ratio when used in a liquid crystal display device. The compound is represented by formula (1): in which, for example, Ris alkyl having 1 to 15 carbons; MES is a mesogen group having at least one ring; Spis a single bond or alkylene having 1 to 10 carbons; Mand Mare hydrogen; and Ris a group represented by formulas (1a) to (1c): in which, Spand Spare a single bond or alkylene having 1 to 10 carbons; Sis &#x3e;CH&#x2014;; Sis &#x3e;C&#x3c;; and Xis &#x2014;OH.

Polymerizable polar compound, liquid crystal composition, and liquid crystal display element

Provided are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat or light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, large optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and good compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1): wherein, Rand Rare alkyl having 1 to 15 carbons; A, A, Aand Aare 1,4-cyclohexylene and 1,4-phenylene; Z, Z, Zand Zare a single bond; Y, Yand Yare fluorine; and a, b, c and d are 0 or 1, and a sum of a, b, c and d is an integer from 0 to 3, or the like.

Liquid crystal compound having biphenylene, liquid crystal composition and liquid crystal display device

To provide a liquid crystal compound satisfying at least one of physical properties such as high stability to light, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a large dielectric constant in a minor axis direction, a suitable elastic constant and excellent compatibility; a liquid crystal composition containing the compound; and a liquid crystal display device including the composition. The compound is represented by formula (1): 

Liquid crystal compound, liquid crystal composition and liquid crystal display device

Provided is a liquid crystal compound satisfying at least one of physical properties such as high stability to heat and light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound, represented by formula (1): wherein, in formula (1), Ris alkoxy having 1 to 9 carbons or the like; Ris alkenyl having 2 to 10 carbons; Zand Zare independently a single bond, &#x2014;CHCH&#x2014;, &#x2014;CH&#x2550;CH&#x2014; or the like; and a and b are independently 0 or 1.

Liquid crystal compound having tercyclohexyl, liquid crystal composition and liquid crystal display device

A polar compound has a high chemical stability, high ability to align liquid crystal molecules and high solubility in a liquid crystal composition, and causes no decrease of liquid crystallinity of the liquid crystal composition, a liquid crystal composition contains the compound, and a liquid crystal display device includes the composition. The compound is represented by formula (1), the composition contains the compound, and the liquid crystal display device uses the composition.  In formula (1), Ris alkyl having 3 to 15 carbons, alkenyl having 4 to 15 carbons or the like; a is an integer from 2 to 12; and Ris a group represented by formula (1a), formula (1b) or formula (1c).  In the formulas, Sand Sare independently a single bond, alkylene having 1 to 10 carbons; Sis &#x3e;CH&#x2014; or &#x3e;N&#x2014;; Sis &#x3e;C&#x3c; or &#x3e;Si&#x3c;; and Xis &#x2014;OH, &#x2014;NHor the like.

Compound having poly (difluoromethylene) chain, liquid crystal composition and liquid crystal display device

To provide a liquid crystal compound satisfying at least one of physical properties such as high stability to light, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a large dielectric constant in a minor axis direction, a suitable elastic constant and excellent compatibility; a liquid crystal composition containing the compound; and a liquid crystal display device including the composition. The compound is represented by formula (1). For example, Ris alkyl having 1 to 15 carbons, ring Ato ring Aare 1,4-cyclohexylene or 1,4-phenylene, Zto Zare a single bond, &#x2014;(CH)&#x2014;, &#x2014;COO&#x2014; or &#x2014;CHO&#x2014;, Xis halogen, &#x2014;C&#x2261;N, &#x2014;CFor &#x2014;OCF, Land Lare hydrogen or fluorine, Yand Yare fluorine; a, b, c and d each are 0 or 1, and a sum thereof is 1 or 2.

Liquid crystal compound having difluoromethyleneoxy, liquid crystal composition and liquid crystal display device

This is to provide an aqueous metal surface treatment agent for a lithium ion secondary battery which can improve interlaminar adhesiveness between a metal member and a resin coating layer such as a film or a coated film, and solvent resistance without using trivalent chromium. The aqueous metal surface treatment agent for a lithium ion secondary battery comprises a polyvinyl alcohol resin containing 2 to 15 mol % of a 1,2-diol structural unit represented by the formula (1): Having a degree of saponification of 90 to 99.9 mol % and an average degree of polymerization of 250 to 3000; and a metallic crosslinking agent.

Aqueous metal surface treatment agent for lithium ion secondary battery

The subject is to provide a liquid crystal compound satisfying at least one of physical properties such as a high stability to heat or light, a high clearing point (or a high maximum temperature), a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectic anisotropy, a suitable elastic constant and an excellent compatibility with any other liquid crystal compound, a liquid crystal composition including this compound and a liquid crystal display device including this composition. The compound is represented by the following formula (1a): wherein Ris alkyl having 1 to 15 carbons or the like; ring A, ring A, ring Aand ring Aare independently 1,4-phenylene, naphthalene-2,6-diyl or the like; Zand Zare independently a single bond or the like; o and p are independently 0, 1 or 2; and n is an integer from 2 to 10.

[object Object]

To provide a liquid crystal compound satisfying at least one physical property such as high stability to light, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large dielectric constant in a minor-axis direction, suitable elastic constant, excellent compatibility, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. The compound is represented by formula (1): wherein, for example, Ris alkyl having 1 to 15 carbons, rings Ato Aare 1,4-cyclohexylene or 1,4-phenylene, at least one of Zto Zis &#x2014;CFO&#x2014;, and Xis fluorine or &#x2014;OCF; wherein, Yto Yare fluorine; wherein, Lto Lare fluorine; and a, b, c and d are independently 0 or 1.

To provide a liquid crystal compound satisfying at least one of physical properties such as high stability to light, a high clearing point, low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a suitable elastic constant, excellent compatibility with other liquid crystal compounds and a large dielectric constant in a minor axis direction. The compound is represented by formula (1).  For example, Ris alkyl having 1 to 15 carbons; rings Ato Aare 1,4-cyclohexylene or 1,4-phenylene; Wis a group represented by formula (1a) or (1b);  Wis a group represented by formula (1c) or (1d);  Yto Yand Lto Lare fluorine; Zto Zare &#x2014;(CH)&#x2014; or &#x2014;OCH&#x2014;; Xis fluorine, &#x2014;CFor &#x2014;OCF; and a to d are 0 or 1, and a sum of a to d is 3 or less.

Growing community of inventors

Chiba, Japan

Hiroyuki Tanaka