Appeal No. 2006-0752
Application No. 10/263,671
solution during or after the treatment in each step, is also
instructed.
Also, evaluation of the subject matter of claims 10 and
12 is in order, as discussed below.
Claim 10 recites that the product has at least 3 thin
layers of alternating cationic and anionic polymers located
outside each other and at least 1.5% by weight of a wet-strength
agent. Evaluation of whether figure 3 suggests this claimed
feature is instructed. We particularly note that figure 3 shows
alternating cationic and anionic potentials, suggesting at least
3 layers. The examiner should evaluate figure 3 and its
corresponding disclosure found in column 5, beginning at line
39, wherein Bartelloni teaches that figure 3 is a schematic flow
chart showing the mechanism of the crosslinking of an anionic
fiber with anionic, uncoagulated latex particles by means of an
intermediate cationic bridging agent. Hence, figure 3 shows an
anionic fiber layer next to an intermediate cationic bridging
agent, next to an anionic uncoagulated latex particle. Column
11 indicates that further bridging agent can be added. See
particularly lines 24 through 27 of column 11. Hence, yet
another layer of cationic polymer next to an anionic polymer is
taught by Bartelloni. Therefore it appears that at least 3
layers of alternating cationic and anionic polymers are set
forth.
An evaluation of whether the disclosed ingredients of
Bartelloni meet “at least 1.5% by weight of a wet-strength
agent” and a “wet tensile index of at least 6.5 Nm/g” as recited
in claim 10 and claim 12, respectively, is also instructed.
1 See column 21, line 56 through column 22, lines 1-14.
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