Appeal No. 1997-1161
Application 08/487,226
retardants such as polydimethylsiloxane in order to improve
the properties of the composition (answer, page 11). In the
portion of the reference relied upon by the examiner, however,
Abolins does not refer to polydimethylsiloxane. The
conventional fire retardants which have the “aforementioned
adverse factors” referred to by Abolins (col. 3, line 14) are
those at column 1, lines 10-15. The representative examples
of such fire retardants set forth by Abolins are phosphorous-,
antimony- and halogen-containing compounds (col. 1, lines 13-
15). Abolins discloses that the drawbacks and undesirable
factors of the conventional fire retardants are overcome by
using as a fire retardant a blend of hydrated alumina and
polyphenylene oxide, alone or in with a polydiorganosiloxane
(col. 1, lines 23-32). The portion of Abolins relied upon by
the examiner discloses that conventional fire retardants may
be used in combination with these blends to improve the
properties of the fire retardant composition, and that doing
so minimizes or eliminates the adverse factors often
associated with the use of the conventional fire retardants.
This portion, however, does not disclose that adding a
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