Appeal No. 1997-1793
Application No. 08/528,044
oxide can be used as a cosmetic article, lacquer, catalyst or
photocatalyst (appealed claim 9) or as a skin cosmetic
(appealed claim 10). Nor does Kleinschmit suggest, much less
teach, the production of an iron oxide/titanium dioxide mixed
oxide which is free from silicon dioxide (appealed claims 2-
5).
In stark contrast to Kleinschmit, Hattori discloses
various binary oxides of Fe O -TiO containing 10-90% Fe O and2 3 2 2 3
having surface areas of 21-62 m /g (experimental section,2
Table 1, page 3208). According to Hattori, the binary oxides
are useful as catalysts for the decomposition of 2-butanol
(page 3208; Table 4, page 3212). Hattori further teaches that
the disclosed binary oxides are produced by a coprecipitation
method involving the steps of subjecting a mixed solution of
ferric nitrate and titanium tetrachloride to hydrolysis with
aqueous ammonia at a pH of 8-9 to form a precipitate, washing
the precipitate with
deionized water, drying the precipitate at 100EC for 20-30
hours, and then calcining the dried precipitate in air at
500EC for 2-3 hours (experimental section, page 3208).
Contrary to the examiner’s stated position, we do not
find any teaching or suggestion in the applied prior art
references to use Kleinschmit’s method of making silicon
7
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007