Mitsubishi Chemical Corporation

Koshi Sasaki

Naoshi Imaki

Hidehiko Ohara

Yasuo Tanabe

Yuji Mizuho

Yosuke Iida

Yoshio Asahi

Provided is a process for producing an aromatic carboxylic acid by oxidizing an aromatic compound having an alkyl group or a partially-oxidized alkyl group with a molecular-oxygen-containing gas in an aqueous medium, characterized in that a compound in which a transition metal is incorporated into a heteropoly-acid skeleton having a deficient structural moiety is used as a catalyst. In accordance with the present invention, the aromatic carboxylic acid can be produced efficiently at low costs.

Process for producing aromatic carboxylic acid

A process for producing a surface-modified molded product of synthetic resin, which comprises contacting a fluorine-containing gas to the surface of a molded product of synthetic resin and then contacting a polymerizable monomer to form a new polymer layer on the surface of the molded product.

Surface-modified molded product of synthetic resin and process for

A fluorine-containing, polyolefin fiber non-woven fabric having enhanced resistance to degradation when exposed to a potassium hydride solution is produced by exposing a polyolefin fiber non-woven fabric to a gaseous atmosphere comprising F.sub.2 and O.sub.2 gases in certain volumetric ratios.

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Kawasaki, Japan

Koshi Sasaki