Nissan Chemical Industries Limited

Nissan Chemical Corporation

Tokyo Metropolitan University

Hokkaido University

Enthone Incorporated

Tadayuki Isaji

Masahiro Ueda

Naoki Otani

Osamu Fujimoto

Takayoshi Kawasaki

Shinichi Maeda

Takamasa Kikuchi

Hiroyoshi Kawakami

Kazutoshi Odaka

Yuri Kameyama

Yoshitane Watanabe

Hirokazu Kato

Hitoshi Furusho

Takashi Ogihara

Manabu Tanaka

Takayuki Kodera

Masahiro Hida

Osamu Tanegashima

Yoshiyuki Kashima

Mitsunobu Matsumura

Bernhard Wessling

Yuki Kudo

Jun-ichi Nakajima

Satoshi Fujita

Hiroto Mikami

Yuji Horiuchi

Akira Miura

Kiyoharu Tadanaga

Azusa Osawa

An alkali metal amide is dissolved in a cyclic alkylene urea represented by the formula (1) (wherein each of Rand Rrepresents a C1 to C3 alkyl group, and Rrepresents a C1 to C4 alkylene group).

Liquid for nitriding treatment, nitrided metal oxide manufacturing method, and nitrided indium oxide film

A method for producing a gas separation membrane containing fine particles uniformly dispersed in a resin, including the following (A) and (B): (A) a step of mixing the fine particles with a matrix resin, the amount of the fine particles with respect to the entire mass of the mixture being adjusted to 1 mass % to 50 mass %, to thereby prepare a master batch; and (B) a step including dissolving the master batch in a solvent, applying the prepared solution onto a substrate, and evaporating the solvent.

Gas separation membrane manufacturing method

A method for producing forsterite microparticles having a primary particle size of 1, to 50 nm, as determined through electron microscopy. The method includes spray-drying, in an atmosphere of 50&#xb0; C. or higher and lower than 300&#xb0; C., a solution containing a water-soluble magnesium salt and colloidal silica at a mole ratio of magnesium atoms to silicon atoms (Mg/Si) of 2; and subsequently, firing the spray-dried product in air at 800 to 1,000&#xb0; C.

Production method for forsterite fine particles

Provided is a production method for a carbon-based light-emitting material that generates light having a wavelength of 500 to 700 nm when exposed to excitation light having a wavelength of 300 to 600 nm. The production method comprises a step for mixing and heating a starting material containing ascorbic acid, an acid catalyst containing an inorganic acid, and a solvent.

Production method for carbon-based light-emitting material

A gas separation membrane containing a matrix resin and hyperbranched polymer- or dendrimer-bound, heteromorphous shaped silica nanoparticles, which are formed of heteromorphous shaped silica nanoparticles having surfaces onto which a hyperbranched polymer or a dendrimer is chemically added.

Gas separation membrane containing heteromorphous shaped silica nanoparticles

Provided is a method for manufacturing a carbonaceous luminescent material in which a polycarboxylic-acid-containing starting material, an acid catalyst, and a solvent are mixed together and heated.

Method for manufacturing carbonaceous luminescent material

A method for producing a gas separation membrane, including the following steps: step (a): treating the surfaces of silica nanoparticles dispersed in a first solvent with a reactive functional group-containing compound, while nanoparticles are being dispersed in the solvent, to thereby prepare a first solvent dispersion of reactive functional group-modified silica nanoparticles; step (b): replacing the first solvent dispersion's dispersion medium of reactive functional group-modified silica nanoparticles prepared in step (a) with a second solvent without drying of dispersion medium, and then reacting functional group-modified silica nanoparticles with dendrimer-forming monomer or hyperbranched polymer-forming monomer in the second solvent's presence so that dendrimer or hyperbranched polymer is added to reactive functional group, to thereby prepare dendrimer- or hyperbranched polymer-bound silica nanoparticles; step (c): mixing dendrimer- or hyperbranched polymer-bound silica nanoparticles prepared in step (b) with a matrix resin; and step (d): applying mixture prepared in step (c) to a substrate, and then removing the solvent.

Method for manufacturing gas separation membrane

The invention provides silane-treated forsterite microparticles having a specific surface area of 5 to 100 m/g, wherein 1 to 5 silyl groups are bound to 1 nmof the surface area thereof.

Silane-treated forsterite fine particles and production method therefor, and organic solvent dispersion of silane-treated forsterite fine particles and production method therefor

The &#x3b2;-eucryptite fine particle production method of the invention includes spraying, into an atmosphere at 50&#xb0; C. to a temperature lower than 300&#xb0; C., a solution containing a water-soluble lithium salt, a water-soluble aluminum salt, and colloidal silica, in such amounts that the mole proportions among lithium atoms, aluminum atoms, and silicon atoms (Li:Al:Si) are adjusted to 1:1:1, to thereby dry the solution, and, subsequently, firing the dried product in air at 600 to 1,300&#xb0; C.

Method for producing &#x3b2;-eucryptite fine particles

A method for producing forsterite microparticles having a primary particle size of 1 to 200 nm, as determined through electron microscopy, characterized in that the method includes spray-drying, at 50&#xb0; C. or higher and lower than 300&#xb0; C., a solution containing a water-soluble magnesium salt and colloidal silica at a mole ratio of magnesium atoms to silicon atoms (Mg/Si) of 2; and subsequently, firing the spray-dried product in air at 800 to 1,000&#xb0; C.

This invention provides a process for producing a dispersion liquid of an intrinsic electroconductive polymer in an organic solvent, comprising a deionization step of deionizing an aqueous colloid dispersion liquid of an intrinsic electroconductive polymer by a liquid feeding method to remove cations adsorbed on the intrinsic electroconductive polymer, a solvent displacement step of subjecting water in the aqueous colloid dispersion liquid after the deionization step to solvent displacement with an organic solvent (excluding N-methylpyrrolidone and dimethyl sulfoxide), and an additive treatment step of, after the solvent displacement step, adding N-methylpyrrolidone or dimethyl sulfoxide. This process can easily produce a dispersion liquid of an intrinsic electroconductive polymer in an organic solvent that can be used in various applications such as electrode materials, antistatic agents, ultraviolet absorbers, heat absorbers, electromagnetic wave absorbers, sensors, electrolytes for electrolytic capacitors, and electrodes for rechargeable batteries.

Process for producing dispersion liquid of intrinsic electroconductive polymer in organic solvent

There is provided a sol in which surface-modified colloidal particles are dispersed in a liquid, wherein the surface-modified colloidal particles are obtained by using anhydrous zinc antimonate colloidal particles, metal oxides comprising tin atom, zinc atom, antimony atom and oxygen atom, or tin oxide-doped anhydrous zinc antimonate colloidal particles as nuclei, and by coating the surface of the nuclei with an aluminum-containing substance (e.g., an aluminum chelating agent), a polymer type surfactant (e.g., a polycarboxylic acid ester or polyethylene glycol monoaliphatic acid ester surfactant) or both of them. The anhydrous zinc antimonate sol is used for several purposes such as transparent antistatic materials in the form of resin, plastic, glass, paper, magnetic tape or the like, transparent UV absorbers, transparent heat radiation absorbers, high refractive index hard coating agent, anti-reflective agent and the like.

Anhydrous zinc antimonate sol and process for producing same

The present invention relates to a metal oxide particle comprising tin atom, zinc atom, antimony atom and oxygen atom, having a molar ratio SnO:ZnO:SbOof 0.01&#x2013;1.00:0.80&#x2013;1.20:1.00 and having a primary particle diameter of 5 to 500 nm; and a process for producing the metal oxide particle comprising the steps of: mixing a tin compound, a zinc compound and an antimony compound in a molar ratio SnO:ZnO:SbOof 0.01&#x2013;1.00:0.80&#x2013;1.20:1.00; and calcining the mixture at a temperature of 300 to 900&#xb0; C. The metal oxide particle is used for several purposes such as antistatic agents, UV light absorbers, heat radiation absorbers or sensors for plastics or glass, etc.

Metal oxide particle and process for producing same

An electro-conductive oxide particle comprising indium atoms, antimony atoms and oxygen atoms in a molar ratio of Sb/In of from 0.03 to 0.08, having a primary particle diameter of from 2 to 300 nm, and having a crystal structure of indium oxide.

Growing community of inventors

Funabashi, Japan

Tadayuki Isaji