Stock material or miscellaneous articles – Composite – Of silicon containing
Reexamination Certificate
2005-09-27
2005-09-27
Stein, Stephen (Department: 1775)
Stock material or miscellaneous articles
Composite
Of silicon containing
C428S304400, C428S697000
Reexamination Certificate
active
06949293
ABSTRACT:
A mesoporous silica has uniform mesopores and a periodic structure, which contains a Zr element in the form of a Si—O—Zr bond and wherein the Zr content in the Si—O—Zr bond, represented by [Zr/(Si+Zr)] is 0.05 to 20 mole %. The mesoporous silica is superior in alkali resistance and is suitably used particularly as a separation membrane (e.g. a ceramic membrane) and a catalytic support for solid-liquid system, in which an alkaline liquid may be used.
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Egashira Yasuyuki
Nishiyama Norikazu
Ueyama Korekazu
Burr & Brown
NGK Insulators Ltd.
Stein Stephen
Ueyama Korekazu
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