Mitsubishi Chemical Industries Limited

Noriyuki Ariyama

Yasuo Oguri

Mitsuru Awata

Junji Saito

Takeo Sawanobori

Yuji Noguchi

Soichi Inoue

Mitsuru Swata

A calcium silicate shaped product comprising a calcium silicate hydrate, a carboxyl group-containing copolymer latex, a coupling agent and a carbon fiber.

Calcium silicate shaped product

A calcium silicate shaped product comprises heat-resistant particles having a radiation energy absorptivity of at least 20% throughout the entire range of the wavelength of from about 2 to about 5.mu., as measured by a 0.1 wt. % KBr disc method.

A process for preparing a calcium silicate shaped product comprises heat-reacting a calcareous source and a siliceous source dispersed in water to obtain an aqueous slurry containing a calcium silicate hydrate having a molar ratio of CaO/SiO.sub.2 being more than 1, adding a siliceous source to the aqueous slurry to bring the molar ratio of CaO/SiO.sub.2 to a level of from 0.85 to 1, and pressfilter-molding the aqueous slurry thereby obtained, followed by steam-curing and drying.

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Hino, Japan

Noriyuki Ariyama