Opaque quartz glass and method for its production

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United States of America Patent

PATENT NO 10005693
SERIAL NO

15118368

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Abstract

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To provide opaque quartz glass having no water absorbing properties and being excellent in infrared light shielding properties, and a method for its production. In the production of opaque quartz glass of the present invention, a fine amorphous silica powder and a pore forming agent are mixed, then molded and heated at a predetermined temperature, to obtain opaque quartz glass wherein contained pores are closed pores, the average pore size of pores is from 5 to 20 μm, and the content density of pores is high, whereby the heat shielding properties are high.

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Patent Owner(s)

  • TOSOH CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arai, Kazuyoshi Kanagawa, JP 31 428
Hirai, Satori Kanagawa, JP 2 1
Yamada, Nobusuke Kanagawa, JP 5 48

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