Mesoporous silica, process for the preparation of the same,...

Details Mesoporous silica, process for the preparation of the same,... Mesoporous silica, process for the preparation of the same,...

2006-03-28

2006-03-28

Nguyen, Ngoc-Yen (Department: 1754)

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

C423S338000, C423S339000, C106S482000, C106S483000

Reexamination Certificate

active

07018596

ABSTRACT:
Accordingly, the invention provides: (1) mesoporous silica characterized by having an average pore diameter in the mesopore region of from 1.5 to 10 nm, a nitrogen adsorption specific surface area determined by the BET method of from 500 to 1400 m2/g, and a monolayer adsorption of water at 25° C. of 1.7 H2O molecules
m2specific surface area or more; (2) a process for synthesizing the mesoporous silica characterized by mixing and reacting active silica with a neutral template and removing the neutral template from the thus formed complex; (3) ink absorbents characterized by containing mesoporous silica; (4) ink absorbent slurries composed of the above-described ink absorbent and a solvent; and (5) recording sheets characterized by containing the above-described ink absorbent.

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“Template-based approaches to the preparation of amorphous, nanoporous silica”, by Raman et al.,Chem. Mater., 8(8):1682-1701, 1999, no month.
“Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanism”, Kresge et al.,Nature, 359:710-712, Oct. 1992.

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