Mitsui Minings & Melting Co., Ltd.

Powdertech Co., Ltd.

Honda Motor Co., Ltd.

Kazuya Kinoshita

Yuji Sato

Hiromichi Kobayashi

Isamu Yashima

Yoichi Kamikoriyama

Kenji Suzuoka

Yuichi Senoo

Takeshi Gondo

Seiji Moriuchi

Takashi Hikichi

Takashi Nakashima

Yunosuke Nakahara

Keiji Tsukamoto

Hideo Urata

Katsuhiko Hayashi

Asuka Sasakura

Takahito Asanuma

Kazuyuki Yamada

Masanori Sato

Yousuke Shibata

Atsushi Kurosaki

To provide a molded article which can have excellent strength, can also have high durability during repeated use, and can maintain high adsorption performance even when the content of a binder resin is reduced. A molded article containing cerium oxide particles and a binder resin, wherein cerium oxide particles which has an average particle diameter of 1 to 15 &#x3bc;m and in each of which a crystallite size is 40 to 200 &#x212b; are used.

Molded article

A fuel reforming catalyst which contains an inorganic porous support, a catalytically active species, and catalyst particles including CeOand ZrOand in which the concentration of ZrOin the catalyst particles is higher in the vicinity of the particle surface than in the particle interior and the concentration of CeOin the catalyst particles is equal in the particle interior and in the vicinity of the particle surface is proposed for the purpose of providing a new fuel reforming catalyst which can effectively lower the concentration of the hydrocarbon of C2 or more in the gas which has passed through a steam reforming reaction.

Fuel reforming catalyst

A deoxidizer includes a porous body of fluorite-type cerium oxide represented by CeO(where x is a positive number smaller than 2) and having a reversible oxygen deficiency. The deoxidizer has a specific surface area of 0.6 to 1.8 m/g and a pore median diameter of 1.6 to 5.3 &#x3bc;m. The cerium oxide used for the deoxidizer is produced by: firing a cerium-containing salt in the atmosphere at 500&#xb0; C. to 1400&#xb0; C. for 1 to 20 hours, to produce fluorite-type cerium oxide composed of a porous body; and firing the cerium oxide at 700&#xb0; C. to 1100&#xb0; C. for 1 to 3 hours in a reducing atmosphere having a hydrogen concentration equal to or above the lower explosive limit, to remove oxygen from the cerium oxide and produce the fluorite-type cerium oxide represented by CeOand having a reversible oxygen deficiency.

Deoxidizer

A dehumidifying deoxidizer containing oxygen-deficient cerium oxide and a dehumidifier is provided. The oxygen-deficient cerium oxide is preferably doped with an element increasing the oxygen absorption of the cerium oxide. The oxygen absorption sites of the cerium oxide are preferably obstructed by a site obstructing factor. The cerium oxide preferably has a fluorite type superlattice structure. Also provided are a dehumidifying and deoxidizing packet having the dehumidifying deoxidizer sealed in a bag-shaped, gas permeable casing and a dehumidifying and deoxidizing resin composition containing the dehumidifying deoxidizer and a gas permeable resin.

Dehumidifying deoxidizer

A carrier for electrophotographic developer comprises a resin carrier core comprising a binder resin and magnetic powder dispersed in the binder resin, and a coating layer comprising a coating resin on a surface of the core, the binder resin being a silicone resin obtained by curing of a polysiloxane compound (A) having an epoxy group and a polysiloxane compound (B) having a group capable of reacting with the epoxy group, due to a ring-opening addition reaction; the binder resin containing a functional group which is an epoxy group and/or a group capable of reacting with an epoxy group; the coating resin containing a functional group capable of reacting with the functional group of the binder resin; the functional group of the coating resin and the function group of the binder resin forming a chemical bond.

Carrier for electrophotographic developer and two-component electrophotographic developer

Provided are a carrier for electrophotography developers prepared by generating a slight amount of byproducts such as water, alcohol, etc, which carrier is free from release of a magnetic powder, has excellent mechanical strength and durability, and good environmental stability, and further can restrain occurrence of toner spent condition and has favorable fluidity and excellent capability of imparting charging to a toner, a two-component developer comprising the carrier and a method for forming an image using the developer. The carrier for electrophotography developers comprises a magnetic powder dispersed binder resin, the binder resin material comprises (A) a polysiloxane compound having an epoxy group as a functional group and (B) a polysiloxane compound having a group capable of ring-opening addition reaction with the epoxy group of the polysiloxane compound (A), and the binder resin is a silicone resin prepared by curing with ring-opening addition reaction of the epoxy resin. The developer comprises the carrier for electrophotography developers and the toner particle. The method for forming an image comprises developing a static latent image by the developer with an alternating electric field.

Carrier for electrophotography developers, developer prepared by using the carrier and method for forming image

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Ageo, Japan

Kazuya Kinoshita