Title:
METHOD FOR PRODUCTION OF COMPLEX OF ELECTRIC STONE AND SILICON OXIDE
Document Type and Number:
WIPO Patent Application WO/2008/062887
Kind Code:
A1
Abstract:
Disclosed is a method for producing a complex of an electric stone and silicon oxide, which comprises the steps of hydrolyzing tetraethoxysilane in the presence of a basic catalyst, conducting a sol-gel reaction to produce a polymeric initial condensation product, mixing a microparticle of the electric stone with the initial condensation product, granulating the mixture, drying the resulting granule, and firing the dried granule at a temperature of 250 to 650°C. In the complex, the ratio of the electric stone to silicon oxide is 4:96 to 76:24. The polymeric initial condensation product has an average molecular weight of 200 to 300. The complex has a surface area of 29 to 460 m2/g as measured by a BET surface area determination method. When the complex is added to an aqueous medium and mechanically stimulated, silicon oxide which is slightly water-soluble forms a stiff coating film on an article.
Inventors:
SUGAYA TAKASHI (JP)
KANDA TOMOKAZU (JP)
TANIGUCHI HAJIME (JP)
TANIGUCHI YOICHIRO (JP)
TAKAMURA TAKUMI (JP)
KANDA TOMOKAZU (JP)
TANIGUCHI HAJIME (JP)
TANIGUCHI YOICHIRO (JP)
TAKAMURA TAKUMI (JP)
Application Number:
PCT/JP2007/072703
Publication Date:
May 29, 2008
Filing Date:
November 19, 2007
Export Citation:
Assignee:
SUGAYA TAKASHI (JP)
KANDA TOMOKAZU (JP)
TANIGUCHI HAJIME (JP)
TANIGUCHI YOICHIRO (JP)
TAKAMURA TAKUMI (JP)
KANDA TOMOKAZU (JP)
TANIGUCHI HAJIME (JP)
TANIGUCHI YOICHIRO (JP)
TAKAMURA TAKUMI (JP)
International Classes:
C01B33/20; C04B35/16; C04B35/622
Foreign References:
| JP2001019420A | 2001-01-23 | |||
| JP2005040467A | 2005-02-17 | |||
| JPH09110468A | 1997-04-28 |
Attorney, Agent or Firm:
NAKAJIMA, Mikio (2-13-1 Kandasudacho,Chiyoda-k, Tokyo 41, JP)
Download PDF: