Appeal No. 95-3782
Application 08/048,371
requires a plurality of conductors surrounded by layers of
polyolefin bonded or blended with a linear or cyclic
organopolysiloxane containing one or more functionalized
hindered amine moieties, with hydrocarbon cable filler grease
within the interstices between the conductors.
Eager discloses communication cables where the insulated
conductors are protected from water by filling in the
interstitial space among the conductors with a water repellant
filler material comprising a grease, most often petrolatum
blended with polyethylene (column 1, lines 15-24). Eager
teaches that there is a problem with these type of
communication cables when they are exposed to high
temperatures (column 1, lines 25-34 and 39-40). Eager
attempts to solve this problem by crosslinking the
polyethylene through irradiation (column 1, lines 46-59).
Eager discloses that a preferred filling material consists of
a mixture of petrolatum, low molecular weight polyethylene and
an antioxidant (column 4, lines 9-13). Appellants and the
examiner agree that Eager does not disclose or teach the
hindered amine polysiloxane required by appealed claim 1
(answer, page 3, and brief, page 2).
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