Appeal No. 95-0311
Application No. 07/976,846
7, lines 32 to 37; teaches that certain piperidine derivatives
can stabilize synthetic polymers, including polyacetals,
against photo-and thermal-deterioration. At column 10, lines
17 to 30, Murayama describes a small genus of preferred
compounds and exemplifies numerous compounds within this
genus, including compound 170, a species within the scope of
the genus recited in claim 1. At column 24, lines 38 to 53,
Murayama teaches that the compounds can be incorporated into
synthetic resins in an amount ranging from 0.01 to 5.0% by
weight, and example 25, appearing at column 39, lines 23 to
30, teaches the incorporation of similar compounds into
polyacetal. A prima facie case of obviousness having been
made, the burden shifts to appellant to rebut the case.
Appellant relies upon a showing which is set forth in Table
I on page 8 of the Brief. With respect to this showing, the3
examiner states on page 6 of his Supplemental Answer (Paper No.
16):
Appellant’s comparative showings have been fully
considered, but have not been found persuasive to
overcome the rejection in that they are not considered
to be a back-to-back comparison based upon the closest
3Table II compares the compounds embraced by claim 2 with
those of the prior art.
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