Appeal No. 1997-0218
Application No. 08/182,757
ultraviolet radiation absorbing material includes a
benzophenone or benzotriazole.3
Kawakubo discloses a "primer composition utilizable on
glass surfaces as an undercoating for a rubber or resin
composition coating, such as for example, elastic sealant on a
glass surface" (col. 1, lines 9-12). The primer composition
comprises a film forming substance such as polyvinyl chloride
and an ultraviolet light absorbing substance such as
benzophenone (col. 1, lines 52-57; col. 2, lines 47-49; col.
3, lines 32-35).
Appellants argue that Kawakubo does not teach or suggest
interposing a layer of an ultraviolet radiation absorbing
material between a polyvinyl chloride containing film and a
glass sheet since the ultraviolet radiation absorbing material
and polyvinyl chloride are contained in the same layer. We
disagree. One having ordinary skill in the art would have
recognized that applying an ultraviolet radiation absorbing
material directly to the polyvinyl chloride film, rather than
3In an amendment received in the Patent and Trademark
Office on September 19, 1996 (Paper No. 19), and entered by
the examiner, claim 78 was amended to delete the word
"derivative."
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