Appeal No. 1997-3908
Application 08/174,997
d) adding the catalyst component/metallocene to the
electron donor/co-catalyst mixture to form a catalyst;
e) introducing the catalyst into a polymerization
reaction zone containing propylene under polymerization
reaction conditions; and
f) extracting polypropylene from the reactor having a
molecular weight of in the range from 300,000 to 800,000 and a
melt flow index of less than or equal to l.
THE REFERENCES
Fujita et al. (Fujita) 5,104,838 Apr. 14,
1992
Tsutsui et al. (Tsutsui) 5,145,818 Sep. 8,
1992
Hara et al. (Hara) 5,244,989 Sep. 14,
1993
THE REJECTIONS
Claims 1-12 stand rejected under 35 U.S.C. § 102(b) as
being anticipated by or, in the alternative, under 35 U.S.C.
§ 103 as being obvious over Fujita. Claims 13-46 stand
rejected under 35 U.S.C. § 103 as follows: claim 13 over
Fujita in view of Hara; claims 14-26 over Fujita; and claims
27-46 over Fujita in view of Tsutsui.
OPINION
We have carefully considered all of the arguments
advanced by appellants and the examiner and agree with
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