Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Reexamination Certificate
2006-05-16
2006-05-16
Cooke, Colleen P. (Department: 1754)
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
C423S338000, C502S233000, C502S234000
Reexamination Certificate
active
07045106
ABSTRACT:
A process for producing an inorganic porous material, comprising the steps of preparing an aqueous medium solution containing water-glass as a silica source, a water-soluble polymer and an acid, causing phase separation and gelation in the solution at the same time to form a wet gel, and washing and drying the gel.According to the present invention, use of water-glass which is easily acquired as a silica source makes it possible to produce porous silica having mutually continuous through holes with macro-pores. According to the present invention, the diameter of each macro-pore can be controlled to a desired value.
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Sato Satoshi
Takahashi Ryoji
Yachi Akiyuki
Birch & Stewart Kolasch & Birch, LLP
Cooke Colleen P.
Tokuyama Corporation
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