Title: Silica
Application Number: 02143330 Application Date: 2002.09.25
Publication Number: 1408641 Publication Date: 2003.04.09
Approval Pub. Date: 2005.11.16 Granted Pub. Date: 2005.11.16
International Classifi-cation: C01B33/16
Applicant(s) Name: Mitsubishi Kasei Corp. Address:
Inventor(s) Name: Mori Kan;Kato Naminako;Funayama Katsuya
Attorney & Agent: chen cuan
Abstract:
    Silica with a large pore volume, a large specific surface area, a narrow pore distribution, low contents of unwanted metal impurities, and excellent physical properties such as high heat-resistance and water-resistance is provided. The silica has a mode pore diameter (Dmax) of 20 nm or less, and a solid-state Si nuclear magnetic resonance (hereinafter called solid-state Si NMR) spectrum of the silica includes a chemical shift (delta ppm) of Q
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