Appeal 2007-2136
Application 10/457,769
DISCUSSION
1. CLAIMS
Claims 14-25 and 27-42 are on appeal. Claims 1-13 are also pending
but have been withdrawn from consideration by the Examiner.
The claims have been argued in groups (Br. 5-14). The claims within
each group stand or fall together. 37 C.F.R. § 41.37(c)(1)(vii). We will
focus on claims 14 and 28,1 which are representative and read as follows:
14. A method of forming a polyolefin resin, the
method comprising:
a) forming a reaction mixture at a sufficient temperature
to allow formation of the polyolefin resin by combining
molecular hydrogen, a first olefin selected from the group
consisting of ethylene and C3-C8 α-olefin, an optional second
olefin selected from the group consisting of ethylene and C3-C8
α-olefin, a diluent, and a vanadium-containing catalyst system
that includes a modifier having formula I:
(R1O)xSiR24-x I
where R1 and R2 are each independently alkyl and x is 1 to 3,
wherein the modifier is added at any point during the formation
of the polyolefin resin; and
b) initiating polymerization of the reaction mixture;
wherein the first olefin is different than the second olefin
and the polyolefin resin has a density greater than about 0.92, a
melt index from about 0.01 to about 20, and a long chain
branching index of greater than about 1.
28. A method of forming a polyolefin resin, the
method comprising:
1 Appellants also separately argue claim 41 (Br. 9). Appellants’ argument is
addressed below but we find it unnecessary to reproduce that claim.
3
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