Kureha Kagaku Kogyo Kabushiki Kaisha

Toyo Boseki Kabushiki Kaisha

Fumio Kodama

Kiro Asano

Hiroto Fujimaki

Koji Seguchi

Masaaki Nakao

Reiho Takabe

Noboru Ohyama

Disclosed herein is a bead-like substance comprising a hydroxymethylated copolymer of styrene and divinylbenzene having a serum protein adsorbed or adhering thereonto, suitable for filling the column used in liquid chromatography in the field of analysis, particularly in clinical examinations, and a method for analytically examining a physiological specimen by liquid column chromatography.

Filling composition for use in liquid chromatography

By bonding a graphite sheet possessing tightness to at least one surface of carbon fiber felt sheet possessing gas permeability by means of a carbonaceous binder, a multilayer thermally insulating material suitable for use in a heating furnace employing a nonoxidizing atmosphere is obtained. This insulating material has mechanical strength which does not decrease with a long period of use and gives rise to little contamination of articles being heated in the furnace.

Multilayer insulating material and process for production thereof

A carbon fiber is oxidized to form oxygen-containing functional groups on the entire surface of the fiber and then contacted with ammonia, an organic amine, a lactam, or an amino carboxylic acid at a temperature of 100.degree.-500.degree. C whereby the surfaces of the carbon fiber obtain good affinity for a synthetic resin.

Process for the surface treatment of carbon fibers

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Chofu, Japan

Fumio Kodama