Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ivb metal
Reexamination Certificate
2005-06-29
2009-08-18
Le, H. (Holly) T (Department: 1794)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ivb metal
C423S071000, C423S089000, C106S441000, C428S328000, C428S403000
Reexamination Certificate
active
07575731
ABSTRACT:
The present invention relates to fine particles of a tin-modified rutile-type titanium dioxide obtained through the reaction of an aqueous solution of a titanium compound having a Ti concentration of 0.07 to 5 mol/l at a pH in the range of −1 to 3 in the co-presence of a tin compound at a molar ratio of tin to titanium (Sn/Ti) of 0.001 to 2, wherein said fine particle has an Sn/Ti composition molar ratio of 0.001 to 0.5, and a short axis and a long axis of a crystal grain diameter thereof have a length of 2 to 20 nm.
REFERENCES:
patent: 5650002 (1997-07-01), Bolt
patent: 5853887 (1998-12-01), Yoshimoto et al.
patent: 6703131 (2004-03-01), Kayanoki
patent: 7338984 (2008-03-01), Nakayama et al.
patent: 02-255532 (1990-10-01), None
patent: 02-255532 (1990-10-01), None
patent: 09-110956 (1997-04-01), None
patent: 09-175821 (1997-07-01), None
patent: 2001-123115 (2001-05-01), None
patent: 2002-194083 (2002-07-01), None
Humin Cheng et al., “Hydrothermal Preparation of Uniform Nanosize Rutile and Anatase Particles”, Chemistry of Materials, Apr. 1995, pp. 663-671, vol. 7, No. 4, American Chemical Society.
X.-Z. Ding et al., “Effect of Tin Dioxide Doping on Rutile Phase Formation in Sol-Gel-Derived Nanocrystalline Titania Powders”, NanoStructured Materials, Sep. 1994, pp. 663-668, vol. 4, No. 5, Pergamon, Elsevier Science Ltd.
Hee-Dong Nam et al., “Prepartion of Ultrafine Crystalline TiO2Powders From Aqueous TiCI4Solution by Precipitation”, Aug. 1998, pp. 4603-4608, vol. 37, Part 1, No. 8, The Japan Society of Applied Physics.
Hayashi Toyoharu
Iijima Tomonori
Nakayama Norio
Buchanan & Ingersoll & Rooney PC
Le H. (Holly) T
Mitsui Chemicals Inc.
LandOfFree
Fine particles of tin-modified rutile-type titanium dioxide... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fine particles of tin-modified rutile-type titanium dioxide..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fine particles of tin-modified rutile-type titanium dioxide... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4088905