Appeal No. 96-0641
Application No. 08/004,890
group-containing polymer and a carboxyl group-containing
polymer) of Keskey are entirely different from the reactants
which are catalyzed in the German reference and Miller
respectively. For example, in the German reference, the
reaction of N-vinylimidazol in the presence of hydroxyammonium
sulfate to produce N-vinylimidazol polymerides (e.g., see
Example 1 of the translation) has no apparent similarity at
all to Keskey’s aforementioned reaction. As a consequence,
this prior art would not have provided an artisan of ordinary
skill with motivation or a reasonable expectation of success
in using the hydroxyammonium sulfate of the German reference
as a catalyst for the composition of Keskey. Likewise, while
Miller discloses using catalysts such as ammonium sulfate to
produce poly-2-alkyl-2-oxazolines by the ring opening
polymerization of oxazoline monomers (e.g., see lines 6
through 27 in column 1), the examiner points to nothing and we
perceive nothing in Miller’s disclosure which would have
provided motivation or a reasonable expectation of success in
using such catalysts for reacting an oxazoline group-
containing polymer with a carboxyl group-containing polymer as
desired by Keskey.
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