Mitsubishi Gas Chemical Company, Inc.

Shigeyuki Hirose

Yasushi Hiramatsu

Masayuki Katagiri

Mikio Yoneoka

Masayoshi Takahashi

Jun Mitadera

Nobuhiko Matsumoto

Takashi Kashiba

Eiichi Honda

Masashi Kurokawa

Yasuhiro Kushida

Shinichi Ayuba

Shinichi Yonehama

Kana Kumamoto

Futoshi Ikoma

Koki Takamura

Hutoshi Ikoma

Toshiya Naito

Provided is a polyamide resin having excellent color tone and elastic modulus, excellent gas barrier properties and low water absorption. The polyamide resin comprises a diamine structural unit and a dicarboxylic acid structural unit, wherein 70 mol % or more of the diamine structural unit is derived from xylylenediamine (A-1) and/or bis(aminomethyl)cyclohexane (A-2) and 50 mol % or more of the dicarboxylic acid structural unit is derived from sebacic acid (B), characterized in that it has a sulfur atom concentration of 1 to 200 ppm by mass.

Polyamide resin

The present invention provides an amine based epoxy resin curing agent and an epoxy resin composition containing the curing agent. The epoxy resin composition has a high gas barrier performance, a long pot life, and utility as a coating material or an adhesive for laminates. The amine based epoxy resin curing agent is composed of a reaction product of (A), (B) and (D) or (A), (B), (C) and (D): (A) m-xylylenediamine or p-xylylenediamine; (B) a polyfunctional compound having at least one acyl group, which is capable of forming an amide group site through a reaction with a polyamine and forming an oligomer; (C) a monovalent carboxylic acid having from 1 to 8 carbon atoms and/or its derivative; and (D) a functional compound having at least one carbonate site represented by the formula (2), which is capable of forming a carbamate site represented by the formula (1) through a reaction with a polyamine: 

Amine epoxy resin curing agent, gas barrier epoxy resin composition comprising the curing agent, coating agent, and adhesive agent for laminate

There is disclosed a process for producing a hydrogen-containing gas, which comprises reacting methanol, steam and oxygen in the presence of (1) a catalyst comprising platinum and zinc oxide, wherein the content of the platinum is in the range of 5 to 50% by weight based on the total amount of the platinum and zinc oxide, or (2) a catalyst comprising platinum, zinc oxide and chromium oxide, wherein the atomic ratio of zinc to chromium (zinc/chromium) is in the range of 2 to 30, or (3) a catalyst comprising platinum, zinc oxide and at least one element selected from the group consisting of lead, bismuth and indium. Each of the catalysts has a high activity and is excellent in heat resistance and selectivity to steam-reforming reaction, and accordingly is capable of efficiently producing a reformed gas which is composed principally of hydrogen and is well suited for use in a fuel cell and the like by means of auto thermal reaction reaction, while lowering the concentration of carbon monoxide in a reformed hydrogen-containing gas.

Process for producing hydrogen-containing gas

There is disclosed a process for producing a hydrogen-containing gas, which comprises reacting methanol, steam and oxygen in the presence of a catalyst comprising palladium, zinc and at least one metal selected from the group consisting of chromium, gallium, copper, indium, bismuth and platinum. That is to say, the process include the following four aspects: (I) a process which comprises reacting methanol, steam and oxygen in the presence of a catalyst comprising palladium, zinc, and either or both of chromium and gallium; (II) a process which comprises reacting methanol, steam and oxygen in the presence of a catalyst comprising palladium, zinc, copper and chromium; (III) a process which comprises reacting methanol, steam and oxygen in the presence of a catalyst comprising palladium and zinc, or chromium added thereto optionally, and either or both of indium and bismuth; and (IV) a process which comprises reacting methanol, steam and oxygen in the presence of a catalyst comprising zinc oxide, palladium and platinum. The use of the above steam-reforming catalyst having a high activity, high selectivity and sufficient durability makes it possible to produce a hydrogen-containing gas which is composed principally of hydrogen and minimized in CO concentration in an industrially advantageous manner through an auto thermal reformer where methanol, steam and oxygen are reacted with one another.

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Kanagawa, Japan

Shigeyuki Hirose