Appeal 2007-2656
Application 11/133,685
Appellants’ claimed invention is directed to a catalyst. The described
and averred inventive catalyst of the present application is said to be a
Ziegler-Natta type polyolefin catalyst (Specification ¶ 002). Claim 5 is
illustrative and reproduced below:
5. A catalyst produced by a process comprising:
a) contacting a catalyst component with an organometallic
preactivating agent, wherein the catalyst component is produced by a
process comprising,
i) contacting a magnesium dialkoxide compound with a
halogenating agent to form a reaction product A;
ii) contacting reaction product A with a first
halogenating/titanating agent to form reaction product B;
iii) contacting reaction product B with a second
halogenating/titanating agent to form reaction product C; and
iv) contacting reaction product C with a third
halogenating/titanating agent to form a catalyst component.
The Examiner relies on the following prior art reference as evidence
in rejecting the appealed claims:
Shamshoum US 5,817,591 Oct. 6, 1998
Claims 2-7 stand rejected under 35 U.S.C. § 102(b) as being
anticipated by Shamshoum.
Appellants argue the rejected claims as a group. Thus, we select
claim 5 as the representative claim on which we shall decide this appeal.
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