Appeal No. 1995-4851
Application 08/167,656
in the art would have been led by Manzer and Groppelli to use
Groppelli’s catalyst in Manzer’s process of producing
asymmetric products.
The examiner further relies (answer, page 6) upon
Scipioni for a disclosure of fluorination of trichloroethylene
to produce 1,1,1-trifluoro-2-chloroethane (page 1, lines 51-
53). However, as pointed out in the Manzer declaration (page
6), Scipioni’s catalyst is partially (70-80%) fluorinated
(page 3, lines 84-87), and zinc is not among the catalyst
components disclosed by Scipioni (col. 3, lines 44-46). The
examiner does not explain, and it is not apparent, why the
applied references would have fairly suggested, to one of
ordinary skill in the art, the use in
Scipioni’s catalyst of zinc in combination with Manzer’s
fluorinated alumina support having a total fluorine content as
AlF corresponding to at least 90 wt%.
3
We find that the motivation relied upon by the examiner
for combining the teachings of Manzer, Groppelli and Scipioni
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