Appeal No. 1999-0268
Application No. 08/650,608
the examiner’s rejections over Orikasa for the reasons given
above with respect to the rejections over Sakazume.
Rejection over EP ‘280 in view of
Epstein ‘859 and Epstein ‘358
EP ‘280 discloses a “composition comprising an amorphous
polymer, a crystalline polymer and a rubber-like polymer,
wherein the rubber-like polymer has a network structure in the
amorphous polymer” (page 3, lines 7-9). The crystalline
polymer forms a continuous phase, the amorphous polymer forms
a continuous phase intermingled with the crystalline polymer
or forms a dispersed phase in the crystalline polymer, and the
rubber-like polymer is dispersed in the amorphous polymer, at
least part of the rubber-like polymer having a continuous
stringy or two-dimensional or three-dimensional network
structure (page 3, lines 13-16; page 6, lines 1-12). The
exemplified rubber-like polymers include ethylene-propylene
rubber, ethylene-butene rubber and ethylene-propylene-butene
rubber (page 5, lines 20-24).
The examiner relies upon the Epstein references for a
suggestion to use as the rubber-like polymer in the EP ‘280
composition an ethylene polymer having units derived from
6
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