Appeal No. 1995-4810
Application No. 08/011,499
Paper No. 14). Claims 4-10 and 12 are the only claims
remaining in this application.
According to appellants, the invention is directed to a
composition exhibiting good heat resistance, good tracking
current resistance, and good arc resistance, comprising
specific amounts of polyphenylene sulphide (PPS), a polyamide
prepared by polycondensation of adipic acid with m-
xylylenediamine, and a metal hydroxide in which the main
constituent is magnesium hydroxide (Brief, page 2). Claim 12
is illustrative of the subject matter on appeal and is
reproduced below:
12. A composition exhibiting heat resistance, tracking
current resistance, and arc resistance containing
polyphenylene sulphide, and per 100 parts by weight of
polyphenylene sulphide:
about 10 to 300 parts by weight of a polyamide prepared
by polycondensation of adipic acid and m-xylylenediamine; and
about 20 to 350 parts by weight of a metal hydroxide in
which the main constituent is magnesium hydroxide.
The examiner has relied upon the following references as
evidence of obviousness:
Ohara 5,021,497 Jun. 4, 1991
2
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