Appeal No. 1998-1909
Application 08/437,489
OPINION
We reverse the aforementioned rejection. We need to address
only claim 1, which is the sole independent claim.
Cecchin discloses a copolymer of propylene and butadiene
having an aggregate 1,3-butadiene content of from 0.1 to 15 wt%
and an isotacticity index higher than 80% (page 3, lines 19-24;
page 4, lines 27-28). This copolymer is comparable to the
appellants’ claim 1 component A. Cecchin does not disclose the
appellants’ claim 1 component B or dynamic crosslinking.
Fischer discloses thermoplastic elastomeric dynamically
partially cured blends of an essentially amorphous monoolefin
copolymer rubber, such as ethylene-propylene copolymer (EPM)
rubber or ethylene-propylene-non-conjugated diene terpolymer
(EPDM) rubber, with a polyolefin resin such as polypropylene or
polyethylene (col. 1, lines 13-20; col. 2, lines 25-28). The
dynamic partial curing takes place in the presence of a curative
such as a peroxide. See id. Thus, Fischer discloses the
appellants’ claim 1 component B and dynamic curing, but does not
disclose component A.
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