Title:
METHOD FOR PRODUCING POROUS SILICA BODY
Document Type and Number:
WIPO Patent Application WO/2012/172733
Kind Code:
A1
Abstract:
A method for producing a porous silica body disclosed in the present invention comprises: a step of preparing a starting material solution which contains a solvent and a silicon alkoxide that contains diisobutyl dimethoxysilane and tetramethoxysilane at such a mass ratio that the mass of the diisobutyl dimethoxysilane is from 0.25 to 1 relative to the mass of the tetramethoxysilane taken as 1; a step of obtaining a wet gel by adding an aqueous solution, which contains a catalyst for accelerating hydrolysis and polycondensation of the silicon alkoxide and has a pH of 8.9-11.3 (inclusive), to the starting material solution; a step of cleaning the wet gel; and a step of drying the cleaned wet gel under supercritical conditions.
Inventors:
KANEKO YURIKO
IWAMOTO TAKUYA
SANGAWA USHIO
HASHIMOTO MASAHIKO
MINO NORIHISA
IWAMOTO TAKUYA
SANGAWA USHIO
HASHIMOTO MASAHIKO
MINO NORIHISA
Application Number:
PCT/JP2012/003387
Publication Date:
December 20, 2012
Filing Date:
May 24, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
KANEKO YURIKO
IWAMOTO TAKUYA
SANGAWA USHIO
HASHIMOTO MASAHIKO
MINO NORIHISA
KANEKO YURIKO
IWAMOTO TAKUYA
SANGAWA USHIO
HASHIMOTO MASAHIKO
MINO NORIHISA
International Classes:
C01B33/16; H04R17/00
Domestic Patent References:
| WO2008129901A1 | 2008-10-30 |
Foreign References:
| JP2004131343A | 2004-04-30 | |||
| JP2011098880A | 2011-05-19 | |||
| JP2007084396A | 2007-04-05 |
Attorney, Agent or Firm:
OKUDA, SEIJI (JP)
Seiji Okuda (JP)
Seiji Okuda (JP)
Download PDF:
Claims: