Appeal No. 1997-0581
Application No. 08/168,549
Appellants do not specifically point to any error in the
examiner’s calculation. Rather, appellants refer to a chart
relating to the relationship between melt flow index and
viscosity for epolene waxes. For the reasons indicated at
page 2 of the Supplemental Answer, we agree with the examiner
that appellants have not demonstrated that the specific low
molecular weight grafted polyolefins produced in the extrusion
grafting process of either Strait or Kelusky do not
necessarily have a viscosity less than 3000 cP or 2000 cP at
190 C as required by claims 1 and 11, respectively. In thiso
regard, we note that the comparative examples in the
specification supposedly representative of prior art grafting
processes produce grafted polyolefins having a viscosity of
less than 3000 cP and 2000 cP at 190 C as required by theo
claims. See all of the comparative examples at pages 10-14 of
the specification.
Further, appellants argue that “[u]nexpected results are
clearly set forth throughout the Examples, particularly
viewing the paired Examples 4-5, 7-8, and 9-10, each without
pressure and with pressure.” See, e.g., Brief, page 9.
However, appellants have not satisfied their burden of
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