Title:
FLUORINE-CONTAINING TITANIUM OXIDE-NANOSILICA COMPOSITE PARTICLES, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2015/137345
Kind Code:
A1
Abstract:
Provided are fluorine-containing titanium oxide-nanosilica composite particles consisting of a condensation product of a fluorine-containing alcohol represented by general gformula RF-A-OH (here, RF denotes a perfluoroalkyl group having 6 or fewer carbon atoms or a polyfluoroalkyl group constituted by substituting some of the fluorine atoms in the perfluoroalkyl group with hydrogen atoms and containing terminal perfluoroalkyl groups having 6 or fewer carbon atoms and perfluoroalkylene groups having 6 or fewer carbon atoms, and A denotes an alkylene group having 1-6 carbon atoms), an alkoxysilane, titanium oxide, and nanosilica particles. These fluorine-containing titanium oxide-nanosilica composite particles can be produced using a fluorine-containing alcohol, which is easy to handle, without the difficulty involved with handling hydrogen fluoride, and can prevent a deterioration in the performance of titanium oxide as a photocatalyst even when a product is subjected to heat treatment at high temperature.
Inventors:
FUKUSHIMA TAKESHI (JP)
SATO KATSUYUKI (JP)
SAWADA HIDEO (JP)
SATO KATSUYUKI (JP)
SAWADA HIDEO (JP)
Application Number:
PCT/JP2015/057024
Publication Date:
September 17, 2015
Filing Date:
March 10, 2015
Export Citation:
Assignee:
UNIMATEC CO LTD (JP)
UNIV HIROSAKI (JP)
UNIV HIROSAKI (JP)
International Classes:
C08G79/00; B01J35/02; B82Y30/00; B82Y40/00; C01B33/12; C08G77/58; C09C1/36; C09C3/08
Foreign References:
| JP2011207628A | 2011-10-20 | |||
| JP2009227880A | 2009-10-08 | |||
| JP2011020023A | 2011-02-03 | |||
| JP2004231952A | 2004-08-19 | |||
| JP2000169481A | 2000-06-20 | |||
| JPH07112126A | 1995-05-02 |
Other References:
See also references of EP 3118243A4
Attorney, Agent or Firm:
YOSHIDA Toshio et al. (JP)
Toshio Yoshida (JP)
Toshio Yoshida (JP)
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