Mitsubishi Chemical Industries Limited

Mitsubishi Kasei Corporation

Shinichiro Koga

Masaaki Miyamoto

Katsuyuki Sakata

Hidemi Nakanishi

Katsuhisa Kohyama

Yoshiaki Ohtani

Akira Matsuno

Taizo Okajima

Isao Akihara

Yoshiyuki Takeda

Eisaku Kakikura

Shigeya Yamaguchi

Yutaka Fukuda

Disclosed herein is a process for producing a polyamide comprising polymerizing at least one monomer of polyamide in the presence of

Process for producing polyamide

Disclosed herein is a process for producing a resin having carbonate bonding, comprising polymerizing a hydroxydiaryl compound and phosgene in an organic solvent of methylene chloride such that the concentration of carbon tetrachloride in phosgene and methylene chloride in the polymerization system satisfies the following equation:

Preparation with controlled amounts of polycarbonate carbon tetrachloride

A particulate polycarbonate resin composition which is separated from a solution of an inorganic filler-containing polycarbonate in an organic solvent at a temperature lower than the melting point of the polycarbonate, and contains an inorganic filler, said composition having a particle size distribution n of from 3 to 8 as represented by the following Rosin-Rammler distribution equation

Polycarbonate resin composition and process for its production

A process for producing a carbon fiber from pitch material, which comprises melt spinning pitch material through spinning nozzles to form precursory pitch fibers and oiling the precursory pitch fibers, followed by infusible treatment and carbonization and optionally by graphitization, characterized in that an oiling agent composed essentially of a silicone oil is applied to the precursory pitch fibers prior to or during the oiling operation.

Process for producing a carbon fiber from pitch material

A mixture of various dinitroanthraquinone isomers prepared from anthraquinone by mixed acid nitration is subjected to a suspension treatment at a temperature above 50.degree. C. with a mixed acid of a content satisfying the following three equations and then the crystals of 1,5-dinitroanthraquinone are separated:

Process for preparing 1,5-dinitroanthraquinone

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Nohgata, Japan

Shinichiro Koga