Appeal 2007-1938
Application 10/050,437
the level of ordinary skill in the art and (4) relevant objective evidence of
nonobviousness. KSR, 127 S.Ct. at 1734, 82 SUPQ2d at 1389; Graham, 383
U.S. at 17-18.
A. Pekala
[42] Pekala discloses a method for producing thin carbon aerogel foam
hybrid/composite electrodes comprising infiltrating a porous material,
e.g., carbon papers, with a carbon foam (i.e., aerogel) precursor
material which is subsequently cured and pyrolyzed at high
temperatures, i.e., 500-3000o C, to form composite (Pekala col. 1, ll.
11-19; col. 2, ll. 18-26).
[43] The carbon foam precursor material may include an aqueous
resorcinol, formaldehyde and sodium carbonate solution (Pekala col.
2, ll. 61-67; col. 3, l. 66 - col. 4, l. 3).
[44] Pekala describes drying using conventional techniques, e.g.,
supercritical drying using carbon dioxide (Pekala col. 4, ll. 21-23).
[45] Example 3 of Pekala is said to describe preparation of a carbon
aerogel foam composite electrode having a density of ~ 600 kg/m-3
(Pekala col. 4, ll. 12-13).
[46] According to the Examiner, Pekala does not teach the hydroxylated
benzene compound (e.g., resorcinol) to catalyst ratio required by the
precursor solutions (Answer 2; Rejection 6).
B. Kaschmitter
[47] According to Kashmitter, the highest capacitance for carbon aerogel
electrodes is said to be observed with an R/C value of 50 (Kashmitter
col. 3, ll. 5-63, esp. at ll. 58-59).
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