Interference 103,482
produces a structure of polypropylene termed
hemiisotactic
due to every other methyl group of the polypropylene
being
above the plane in a Fischer projection. Hemiisotactic
polypropylene is noncrystalline and can be used as a
plasticizer with syndiotactic and isotactic
polypropylene.
According to Dolle, the average length of the isotactic
sequences (n ) and the syndiotactic sequences (n ) of theiso syn
polypropylenes produced in accordance with Examples 8-12 of
Application 08/147,006 (Spec., pp. 17-20) are:
Dolle Examples 8 9 10 11 12
n 3.7 4.1 4.0 3.7 4.4
iso
n 3.7 4.0 3.7 3.7 4.5
syn
On pages 3-4 of the Declaration of Andreas Winter
(Winter)(Record of Party Dolle et al.(RD), pp. 3-4 (RD 3-4)),
Winter provides a triad analysis of the pentad compositions
indicated by the C-13 NMR spectra reported for polypropylene
produced in accordance with Dolle’s Example 8, calculated the
average length of the isotactic sequences n and the
iso
syndiotactic sequences n for the polypropylene produced
syn
using the data from said triad analysis and Winter’s formulas
(I) and (II), and showed that the n and n values heiso syn
calculated correspond to the n and n values reported byiso syn
51
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