Appeal No. 2006-0124
Application No. 10/071,301
characteristics," which include "clear in color, castable,
stretchable, possess mordant sites than [sic] can react with a
dye, be sufficiently swellable in water to be dyed, that is, have
its mordant sites exposed and also exhibit good dichroism after
appropriate dyeing" (Buzzell, column 5, lines 13-17). The
examiner concludes (Answer, page 4) that it would have been
obvious to add a crosslinking agent to the adhesive layer, aided
by a catalyst such as hydrochloric acid (HCl) (based on column 6,
lines 1-5, of Buzzell), "to maintain the dimensional stability of
the entire polarizing plate laminate."
Appellants argue (Brief, page 4) that Buzzell "does not
disclose the advantages of a cross-linking agent for any
'polymer.'" Instead, contend appellants, Buzzell only teaches
that adding a crosslinking agent to a mordanting polymer film
improves the "dimensional stability" and other characteristics of
the mordanting polymer film. Further, appellants add (Brief,
page 5) that Buzzell fails to suggest that the characteristics
that are improved by the crosslinking agent are applicable to the
adhesive layer. Thus, appellants assert (Brief, page 5) that
the examiner has failed to establish a motivation for using a
crosslinking agent in the adhesive of Buzzell other than in
hindsight. We agree.
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