Interference 103,482
sequence length of each of the isotactic (n ) and
iso
syndiotactic (n ) sequences which he calculated for the
syn
polymer of each of his examples and the unique stereochemical
pentad distribution indicated by the polymer’s C-13 NMR
spectra. Dolle’s Examples 3-12 provide (1) the average
isotactic sequence length (n ) and the average syndiotactic
iso
sequence length (n ) for each of the different syndio-
syn
isoblock polypropylenes prepared by the process of making
polyolefins described in each example, and (2) the pentad
distributions indicated for each polymer
from a C-13 NMR spectrum analysis of each polymer prepared in
accordance with the method of making polyolefins described in
each example. While Dolle Application 08/147,006 does not
show one skilled in the art precisely how he calculated the
average sequence length of the isotactic and syndiotactic
sequences for any given polyolefin, we find that Dolle’s
specification as a whole would have enabled persons skilled in
the art with full knowledge of Randall’s and Buschermohle’s
disclosures to accurately determine the average sequence
length of the syndiotactic and isotactic sequences of any new
polyolefin
based on a triad analysis of the pentad distribution from its
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