Catalysts & Chemicals Industries Co., Ltd.

Jgc Catalysts & Chemicals Ltd.

Tsuguo Koyanagi

Michio Komatsu

Katsuhiro Shirono

Goro Sato

Masayuki Matsuda

Hirokazu Tanaka

Hiroyasu Nishida

Akira Nakashima

Ryo Muraguchi

Mitsuaki Kumazawa

Kazuhiro Nakayama

Kazuaki Inoue

Takaki Mizuno

Atsushi Tanaka

Yoshichika Tanaka

Kazutaka Egami

Hiroo Yoshidome

Toshiharu Hirai

Miki Egami

Atsushi Tonai

Mitsuru Nakai

Tomohiro Mitsui

Yuka Morishita

Masanobu Taniguchi

Yuji Tawarasako

Kei-ichi Mihara

Yuka Seto

Takashi Kodama

Michael Graetzel

Nobuaki Yoshida

Yuhko Hakoshima

Yutaka Mitsuo

Satoshi Yoshida

Kei Mihara

Silica particles calcined in a calcination step are supplied in a swirling flow generated by a gas introduced in a disintegration container and disintegrated therein, whereby the silica particles can be easily disintegrated and there can be obtained disintegrated silica particles having both low hygroscopicity and high dispersibility in resin. In addition, the introduction of dehumidified air (gas) during the disintegration reduces hygroscopicity and greatly improves dispersibility in resin. Furthermore, performing heating treatment (calcination) again after the disintegration causes the surface modification of the disintegrated silica particles, greatly improving hygroscopicity and dispersibility in resin. The resin composition obtained in this manner including silica particles provides good injectability and filterability when used for an underfill material for semiconductors and an in-plane spacer or sealing spacer of liquid crystal displays.

Method for producing disintegrated silica particles

A water-repellent transparent coating-substrate assembly includes a substrate and a water-repellent transparent coating disposed on a surface of the substrate, the transparent coating including an inorganic oxide fine particle layer containing inorganic oxide fine particles, and an overcoating layer disposed on the inorganic oxide fine particle layer, the surface of the water-repellent transparent coating having irregularities including depressions and protrusions in which the protrusions have an average height (T) in the range of 30 to 500 nm and an average protrusion interval (pitch width) (W) in the range of 50 to 1000 nm, the water-repellent transparent coating having a water contact angle in the range of 130 to 180&#xb0;.

Water-repellant transparent coating-substrate assembly and process for producing the same

An aluminum phosphate-modified metal-supported crystalline silicoaluminophosphate NOx-reducing catalyst includes metal-supported crystalline silicoaluminophosphate particles having a surface modified with aluminum phosphate.

Metal-supported crystalline silicoaluminophosphate NOx-reducing catalyst

Present invention provides an antibacterial deodorant with antibacterial characteristics and high deodorizing capability. The antibacterial deodorant is inorganic oxide particles comprising a metal component and an inorganic oxide other than the metal component, the inorganic oxide includes titanium oxide and silica and/or zirconia, and the titanium oxide is crystalline titanium oxide. A content of the metal component in the inorganic oxide particles is in a range from 0.1 to 30% by weight as converted to an oxide thereof, and an average particle diameter of the inorganic oxide particle is in a range from 2 to 500 nm.

Antibacterial deodorant

An exhaust gas treatment apparatus includes a device (A) which is provided in an exhaust system and which selectively reduces NOin an exhaust gas and a device (B) which is disposed upstream of the device (A) and which decomposes urea and supplies ammonia as a NOreducing gas, the device (B) including a urea decomposition catalyst. The catalyst is [1] a zeolite catalyst which is composed of granular molded bodies including zeolite particles or which includes a catalyst layer composed of zeolite particles disposed on a support, or [2] a honeycomb catalyst or a membranous catalyst in which metal oxide particulates adhere to a conductive honeycomb substrate or netlike support, and the metal oxide particulates are composed of at least one oxide of a metal selected from the group consisting of Na, Mg, Ca, Ba, La, Ce, Ti, Zr, V, Cr, Mo, W, Mn, Zn, Al, Si, P, Sb, Cu, Fe, Ru, Co, and Re.

Exhaust gas treatment apparatus

A method for forming a metal oxide fine particle layer, by which a metal oxide fine particle layer having uniformity and excellent in adhesion, abrasion resistance, strength, etc. can be formed easily compared with the conventional plating method, CVD method, liquid coating method, electrodeposition method or the like. The method comprises immersing a conductive substrate in a dispersion of metal oxide fine particles and fibrous fine particles and applying a direct-current voltage to the conductive substrate and the dispersion. The fibrous fine particles have a length (L) of 50 nm to 10 &#x3bc;m, a diameter (D) of 10 nm to 2 &#x3bc;m and an aspect ratio (L)/(D) of 5 to 1,000. The content of the fibrous fine particles in the dispersion is in the range of 0.1 to 20% by weight in terms of solids content, based on the metal oxide fine particles.

Method for forming metal oxide fine particle layer on conductive substrate

The present invention provides a catalytic composition for oxychlorination excellent in the fluidity, the capability of suppressing lowering of the fluidity, and the attrition resistance as well as in the selectivity for EDC and the capability of suppressing combustion of ethylene. The catalytic composition for oxychlorination contains silica alumina particles in the range from 5 to 40 wt % when expressed as an oxide thereof, copper in the range from 5 to 20 wt % when expressed as an oxide thereof (CuO), and alumina as a carrier in the range from 40 to 90 wt % when expressed as that of AlO. The silica alumina particles are prepared by coating silica particles with alumina, and have the average particle diameter in the range from 3 to 100 nm. A content of alumina in the silica alumina particles is in the range from 0.1 to 10 wt %.

Catalytic composition for oxychlorination

An electrolyte membrane includes inorganic oxide particles having proton conductivity, and an organic resin or an inorganic matrix component. The inorganic oxide particles having proton conductivity preferably comprise hydrated antimony oxide particles represented by the following formula (1) and have an average particle diameter of 5 to 50 nm, and the content of the hydrated antimony oxide particles is preferably in the range of 5 to 80% by weight in terms of an oxide (SbO);SbO.nHO&#x2003;&#x2003;(1)wherein n is 0.1 to 5. The electrolyte membrane provides a fuel cell which exhibits high cell performance even after prolonged operation and/or at high operating temperatures.

Electrolyte film and fuel cell

The process for preparing tubular titanium oxide particles comprises subjecting a water dispersion sol, which is obtained by dispersing (i) titanium oxide particles and/or (ii) titanium oxide type composite oxide particles comprising titanium oxide and an oxide other than titanium oxide in water, said particles having an average particle diameter of 2 to 100 nm, to hydrothermal treatment in the presence of an alkali metal hydroxide. After the hydrothermal treatment, reduction treatment (including nitriding treatment) may be carried out. The tubular titanium oxide particles obtained in this process are useful as catalysts, catalyst carriers, adsorbents, photocatalysts, decorative materials, optical materials and photoelectric conversion materials. Especially when the particles are used for semiconductor films for photovoltaic cells or photocatalysts, prominently excellent effects are exhibited.

Tubular titanium oxide particles and process for preparing same

A photovoltaic cell includes a substrate having an electrode layer on the surface and having a porous metal oxide semiconductor film which is formed on the electrode layer and on which a photosensitizer is adsorbed, a substrate having an electrode layer on the surface, both of said substrates being arranged in such a manner that the electrode layer and the electrode layer face each other, and an electrolyte layer provided between the semiconductor film and the electrode layer, wherein the semiconductor film contains an inhibitor of back current, and at least one pair of substrate and electrode layer thereon have transparency. The photovoltaic cell is capable of inhibiting back current and decomposition of a spectrosensitizing dye caused by the ultraviolet rays, has high photoelectric conversion efficiency and is capable of generating high electromotive force.

Photovoltaic cell

An inorganic compound sol comprises a dispersion medium and, dispersed therein, inorganic compound particulates whose surface has been modified by an organic compound exhibiting a molecular polarizability of from 2&#xd7;10to 850&#xd7;10CmJ. The inorganic compound sol modified by an organic compound possesses a desirable affinity with the dispersion media, providing excellent dispersion stability in solvents while avoiding aggregation of particulates.

Inorganic compound sol modified by organic compound

There is provided a process for producing an integrated circuit, wherein not only can conductive fine particles be deposited efficiently and densely in minute wiring channels and connecting holes but also a circuit of low wiring resistance and high density can be formed and wherein a high-degree integration can be achieved to thereby bring about an economic advantage. In particular, there is provided a process for producing an integrated circuit, comprising coating a substrate provided with wiring channels with a coating liquid for integrated circuit formation containing conductive fine particles to thereby form an integrated circuit on the substrate, wherein the coating liquid for integrated circuit formation while being exposed to ultrasonic waves is applied to the wiring channels.

Process for producing integrated circuit, and substrate with integrated circuit

A photoelectric cell that includes a first insulating base, having on its surface a first electrode layer, which has on its surface a metal oxide semiconductor film, which includes anatase titanium oxide particles, on which a photosensitizer is absorbed and a second insulating base having on its surface a second electrode layer and an electrolyte sealed between the metal oxide semiconductor film and the second electrode layer. The first electrode layer and the second electrode layer are arranged opposite from each other. At least one of the first and second insulating bases with an electrode layer is transparent.

Photoelectric cell and process for producing metal oxide semiconductor film for use in photoelectric cell

A photovoltaic cell includes a first substrate having on its surface a first electrode layer having on its surface a semiconductor film on which a photosensitizer is adsorbed, and a second substrate having on its surface a second electrode layer. The first and second substrates are arranged so that the first electrode layer overlaid with the semiconductor film and the second electrode layer are opposite each other with an electrolyte disposed therebetween. Spacer particles are interposed between the semiconductor film and the second electrode layer, and at least one of the electrode-layer-having substrates is transparent. A coating liquid for forming the semiconductor film includes both a component for forming the semiconductor film as well as the spacer particles, dispersed in a dispersion medium.

Growing community of inventors

Kitakyushu, Japan

Tsuguo Koyanagi