Appeal 2006-2931
Application 10/447,009
possessed in the cited reference. Specifically, the issue is whether the
Examiner has shown that the nonwoven product of Eknoian comprising a
nonwoven web of fibers bonded together with an emulsion polymerized
polymer comprising vinyl acetate, ethylene, and a polymerized cross-linking
units of a monomer that would reasonably be expected to possess
“polymerized units of crystalline ethylene segments” and the “polymer
having a crystalline melting point ranging from 35 to 90°C as measured by
differential scanning calorimetry at a key rate of 20°C per minute”
properties and, if so, whether Appellants have established that the product of
Eknoian does not possess the recited characteristics.
FINDINGS OF FACT
The following facts are relevant to issue II:
Eknoian describes nonwoven products comprising the nonwoven web
of fibers bonded together with a binder that comprises an emulsion
polymerized polymer containing vinyl acetate, ethylene, and a cross-linking
monomer meeting all the limitations of claim 1, except for the description of
“polymerized units of crystalline ethylene segments” and the “polymer
having a crystalline melting point ranging from 35 to 90°C as measured by
differential scanning calorimetry at a key rate of 20°C per minute” (Section
[0052]).
Eknoian describes the preferred reactor pressure for polymerization of
ethylene ranges from 700 to 1400 psi (Section [0050]).
Eknoian describes redox polymerization systems that employ
temperatures of about 50° C and sodium formaldehyde sulfoxylate in
Examples 11-20 (Section [0097]).
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