Appeal No. 1998-0215
Application No. 08/052,671
foamable substances, which, upon heat activation, under
high temperature such as fire, or arcing conditions, tend
to flame and fire-proof the insulating tape (Col[.] 2,
lines 43-55). When the tape is exposed to temperatures
above about 350 degrees C., a foamy charred residue of
the thermoplastic resin results (Col. 2, lines 57-58).
However, appellant argues that the phrase “a heat-
bondable component consisting essentially of a thermoplastic
resin” recited in claim 1 precludes the presence of the high
melting
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