Appeal 2007-2181
Application 10/261,862
used in combination. [¶ 19, bracketed text and
emphasis added.]
[8] Thus, Yamamoto appears to teach that the composite aramid paper's
dense layer is calendered at a lower temperature, while its porous
layer is calendered at a higher temperature, i.e., "the lower
temperature roll is used for the layer comprising the m-aramid fibrid
alone" (¶ 24).
3. Shields
[9] According to Shields, "[t]he high porosity of paper . . . makes it a
suitable adherend for almost any adhesive without pretreatment" (p.
253, col. 1, ¶ 3).
B. The Examiner's position
The Examiner found Yamamoto to disclose
a method of forming an aramid paper having good
resin impregnation ability useful in electric
insulation windings for electric motors comprising
providing an aramid and calendering the aramid
paper by passing the aramid paper through a nip of
two heated rolls wherein there is an at least 20 oC
temperature difference between the rolls (Answer,
3).
As to claim 1, the Examiner essentially concluded that it would have been
obvious to one of ordinary skill in the art to use Yamamoto's composite
aramid paper in the aramid paper/PET/aramid paper laminate of Nakaishi
because the highly porous layer of Yamamoto's composite paper would have
been expected to have a good resin impregnation ability (Answer, 4-5). The
Examiner further concluded that it would have been obvious to apply the
PET polymer to the more porous surface of Yamamoto's aramid paper
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