Appeal No. 96-1076
Application No. 07/961,160
being directed to a nonelected invention or a nonelected
species.
The subject matter on appeal relates to a cable coating
formed by a polymeric mixture of a first thermoplastic polymer
which consists of an aromatic polyester of isophthalic and
terephthalic acid with bisphenol A and a second thermoplastic
polymer consisting of an elastomeric polyether-ester block
copolymer having particular Shore D hardness and Vicat
softening point characteristics. The mixture possesses an
ultimate elongation not lower than 50%. This appealed subject
matter is adequately illustrated by independent claim 13 which
reads as follows:
13. A cable coating formed by a polymeric mixture
characterized in that it comprises from from [sic] 50 to 80
parts (w/w) of a first thermoplastic polymer which is
amorphous, highly resistant to flames and combustion, and
consists of an aromatic polyester of isophthalic and
terephthalic acid with bisphenol A, and from about 20 to 50
parts (w/w) of at least a second thermoplastic polymer
consisting of an elastomeric polyether-ester block copolymer,
having a Shore D hardness greater than 50 and a Vicat
softening point greater than 170EC, said mixture having an
ultimate elongation not lower than 50% when the amount of the
second polymer is the lowest one and a higher ultimate
elongation as the amount of said second polymer increases.
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