Appeal No. 1996-0438
Application No. 08/090,343
the fluidity of the resin mixture.
The principal argument advanced by appellants is that
Heilman specifically requires, at column 7, line 58 - column
8, line 15, that "the composition utilized by Heilman be free
of hydroxy-functional materials!" Based on this disclosure,
appellants contends that "[o]ne skilled in the art would
recognize that Heilman specifically teaches away from
incorporation of hydroxyl functional materials and would not
be motivated to utilize Heilman's blends of polyepoxide and
monoepoxide as a replacement for the polyepoxide in the
European patent (Horley) which requires the presence of active
hydrogen containing materials such as hydroxyl groups"
(sentence bridging pages 3 and 4 of appellants' response of
April 3, 1995).
We are not persuaded by appellants' arguments for several
reasons. First, as noted by the examiner, Heilman teaches
that it is essential for the shelf life of the intermediate
composition that the presence of active hydrogen be minimized
and, significantly, further teaches that active hydrogen
atoms, as found in hydroxyl groups, induce the anhydride
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