Appeal No. 1997-1161
Application 08/487,226
copolymer produced from two or more comonomers, or a blend of
two or more of these polymers, conventionally used as
jacketing and/or insulating materials in wire and cable
applications” (col. 2, lines 3-7). The blend could possibly
include both a polyolefin polymer and a polyolefin polymer
copolymerized with an anhydride of a vinyl dicarboxylic acid,
i.e., maleic anhydride (col. 2, lines 9-25). However, no such
copolymer is disclosed. In order to arrive at appellant’s
combination of components (a) and (c) in claim 1, one of
ordinary skill in the art would have had to select, from the
enormous number of combinations encompassed by Keogh’s
disclosure, a polyolefin/maleic anhydride copolymer and
another polyolefin, which is different from the copolymer, and
blend them in the relative amounts recited in appellant’s
claim 1. The examiner has not explained why Keogh reasonably
would have led one of ordinary skill in the art to this
combination. Accordingly, we reverse the rejection over
Keogh.
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