Ube Industries, Inc.

Sanae Hatakenaka

Hiroshi Sato

Nobuyuki Kuroda

Toshikazu Machida

Yasuhiro Tanaka

Motozo Yoshikiyo

Mikio Fujimoto

Mitsumasa Tsugawa

Hiroshio Sato

A process for the production of trialkoxyhalosilanes which comprises reacting a tetrahalosilane [37] with a tetra-alkoxysilane [38] in the presence of an alcohol whose alkoxy group is the same as those of the tetraalkoxysilane to thereby obtain a trialkoxyhalosilane [39], characterized in that the alcohol is used in an amount of 5 to 50% by mole based on the total amount of Si of the tetrahalosilane and the tetraalkoxysilane: SiX[37] (wherein X is halogeno) Si(OR)[38] (wherein Ris a hydrocarbon group having 1 to 6 carbon atoms) XSi(OR)[39] (wherein X and Rare each as defined above).

Process for production of trialkoxyhalosilanes

A process for the production of trialkoxyhalosilanes which comprises reacting a tetrahalosilane [37] with a tetra-alkoxysilane [38] in the presence of an alcohol whose alkoxy group is the same as those of the tetraalkoxysilane to thereby obtain a trialkoxyhalosilane [39], characterized in that the alcohol is used in an amount of 5 to 50% by mole based on the total amount of Si of the tetrahalosilane and the tetraalkoxysilane: SiX[37] (wherein X is halogeno) Si(OR)[38] (wherein Ris a hydrocarbon group havingtocarbon atoms) XSi(OR)[39] (wherein X and Rare each as defined above).

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Yamaguchi, Japan

Sanae Hatakenaka