MESOPOROUS SILICA, PROCESS FOR THE PREPARATION OF THE SAME, AND USE THEREOF

Mesoporous silica having highly hydrophobic properties, a process for producing the mesoporous silica whereby the mesoporous silica can be synthesized under mild conditions with the use of inexpensive materials, and ink absorbents and recording sheets having a high ink-absorptivity, and being excell...

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Bibliographic Details
Main Authors SHIMIZU, TADASHI, SATOU, SEIJI
Format Patent
LanguageEnglish
French
German
Published 13.09.2000
Edition7
Subjects
CHEMISTRY
COLOUR PRINTING
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
LINING MACHINES
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:Mesoporous silica having highly hydrophobic properties, a process for producing the mesoporous silica whereby the mesoporous silica can be synthesized under mild conditions with the use of inexpensive materials, and ink absorbents and recording sheets having a high ink-absorptivity, and being excellent in water resistance and light resistance are provided. 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 m /g and a monolayer adsorption of water at 25 DEG C of 1.7/nm 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.
Bibliography:Application Number: EP19980954758