Interference 103,482
Cp ring, a dialkyl substituted Cp ring and a monoalkyl
substituted ring, etc.
To the contrary, Ewen, U.S. 5,036,034 (Appendix F),
indicates that hemiisotactic polyolefins are produced when
olefins are polymerized using the metallocene catalysts it
describes, irrespective of the polymerization conditions
(Ewen, U.S. 5,036,034, col. 5, l. 65, to col. 6, l. 3). Dolle
Application 08/147,006 likewise suggests that syndio-isoblock
polymers are produced when olefins are polymerized using
the metallocene catalysts it describes, regardless of the
polymerization conditions (Dolle Application 08/147,006,
spec., p. 10, l. 32, to p. 11, l. 27). Based on Ewen’s
disclosure
in U.S. 5,036,034, the APJ found that “no special
polymerization conditions are necessary to form hemiisotactic
polymers” and
“any of the conventional means of polymerization will give a
hemiisotactic structure” when the metallocenes described in
Ewen, U.S. 5,036,034, catalyze the polymerization of olefins
(Paper
No. 52, p. 11, first full para.). Dr. Winter’s calculations,
which we found to be consistent with the average sequence
length values for isotactic and syndiotactic sequences
104
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