Appeal No. 1995-0770
Application No. 07/929,457
the same context as the terpolymer produced according to the claimed process, i.e.,
migration imaging members. For this purpose, Tam '307 teaches that the terpolymer
should have a dispersity value (m /m ) of at least about 2 or greater and a m within thew n w
range of about 25,000 and about 80,000. See, e.g., column 16, lines 25-51 and Examples
XVIII-XX of Tam '307.
Taking a step back and viewing the disclosures of Kamath '703 and Tam '307
together, we hold that it would have been obvious to one of ordinary skill in the art to use
the polymerization process of Kamath '703 to form terpolymers in accordance with Tam
'307 (specific monomers, polydispersity values and m ) since Kamath '703 indicates that
w
the use of that procedure results in a polymerization process which will proceed quicker
and produce a polymer having minimal residual monomer content. See, e.g., column 1,
lines 8-19 and column 7, lines 64-68 of Kamath ‘703.
Tam '307 specifically describes the use of toluene as a solvent in the formation of
the terpolymer. Thus, it would have been obvious to one of ordinary skill in the art to use
toluene as the solvent in Kamath '703 for forming a terpolymer of styrene, ethyl acrylate and
acrylic acid. To the extent that Tam '307 does not expressly describe the amount of
solvent required by claim 10 on appeal, once again, this would be a result effective
variable which would be routinely optimized by one or ordinary skill in the art. Id.
Time Period for a Response
14
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