Appeal No. 1997-1907 Page 8
Application No. 08/265,369
in order to establish prima facie obviousness, there must be
some suggestion for doing so, found either in the references
themselves, or in the knowledge generally available to one of
ordinary skill in the art.” In re Jones, 958 F.2d 347, 350,
21 USPQ2d 1941, 1943-44 (Fed. Cir. 1992); In re Fine, 837 F.2d
1071, 1074, 5 USPQ2d 1596, 1598-99 (Fed. Cir. 1988).
Here, the examiner makes reference to Example 1 of
Mosbach (answer, page 3) where Mosbach discloses the use of a
mixture of a uretdione diisocyanate (dimer) and an
icocyanurate polyisocyanate (trimer) as part of a
polyisocyanate mixture having an NCO content of 21.6 percent
which is mixed with dimethoyl propionic acid and N-methyl
morpholine until the NCO content of the mixture is reduced to
15.3 percent. The mixture is subsequently cooled, a solution
thereof is applied to a glass plate and then dried to form a
film thereon. The examiner additionally makes reference to
column 6, lines 42-45 of Mosbach wherein the preparation of
an aqueous dispersion of a partly neutralized polyisocyanate
mixture is discussed and column 7, line 34 of Mosbach wherein
a hardness value is reported for an oven dried film of a
polyisocyanate mixture made from the starting components of
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