Appeal No. 95-1628
Application 08/067,750
conjugated unsaturated group may be employed instead of butene
in this and other Gavoret Examples (see, col. 1, lines 54-58)
to prepare separated pearls, which pearls are subsequently
expanded “by conventional means” (col. 3, lines 6-10).
However, there is no reasonable indication in Gavoret that
even if butadiene or another such monomer would be resident in
the pearls of Gavoret Example 6 or in pearls prepared
according to other reference Examples and teachings, the
pearls would contain at some point in their preparation or
expansion at least one oligomer or polymer derived from said
monomers. Similarly, in Nemphos (e.g., Example 1 and col. 3,
lines 41-47) and Matsunaga (e.g., Examples 4 and 5, and col.
4, lines 50-58, col. 5, lines 21-29, col. 6, lines 8-12 and
25-31), there is no reasonable suggestion that the use of
cyclopentadiene, which can reasonably be selected as the
volatile liquid foaming agent, would result at some point in
cells containing at least one oligomer or polymer derived from
said monomer through admixture with resin, either in the
barrel of an extruder or by hand, and subsequent preparation
of the foamed plastic sheet. Finally, in Chandalia, the
selection of a preferred monomer containing a conjugated
unsaturated group (col. 5, lines 52-55) to co-react with an
azo di-ester polyol and/or a peroxy di-ester polyol in a graft
copolymerization simultaneously with polyurethane
polymerization (e.g., col. 1, line 56, to col. 2, line 3),
even though the same would reasonably qualify as an
“additional foaming agent” (col. 6, lines 20-39), does not
provide reasonable assurance that the selection of such
monomers would result at some point in cells containing at
least one oligomer or polymer derived from said monomers.
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Last modified: November 3, 2007