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

A mesoporous silica having high hydrophilicity; a process by which a mesoporous silica can be prepared from inexpensive raw materials under mild conditions; and an ink absorbent and a recording sheet which exhibit high absorbency for ink and are excellent in the resistances to water and light. Speci...

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Bibliographic Details
Main Authors SHIMIZU, TADASHI, SATOU, SEIJI
Format Patent
LanguageEnglish
French
Published 03.06.1999
Edition6
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:A mesoporous silica having high hydrophilicity; a process by which a mesoporous silica can be prepared from inexpensive raw materials under mild conditions; and an ink absorbent and a recording sheet which exhibit high absorbency for ink and are excellent in the resistances to water and light. Specifically, 1) a mesoporous silica characterized by having a mean mesopore diameter of 1.5 to 10 nm, a specific surface area of 500 to 1400 m2/g as determined by the BET nitrogen adsorption method and a monolayer adsorption of 1.7 water molecules/nm2 or above as determined at 25 ~C ; 2) a process for the preparation of a mesoporous silica, characterized by mixing activated silica with a neutral template to conduct a reaction, and removing the template from the obtained composite; 3) an ink absorbent characterized by containing a mesoporous silica; 4) an ink absorbent slurry comprising the above ink absorbent and a solvent; and 5) a recording sheet characterized by containing the above ink absorbent.
Bibliography:Application Number: CA19982310776