Interference 103,482
syndiotactic and isotactic sequences are present as 3 monomer
unit “mistakes”. The evidence indicates that
the prior art syndiotactic, highly isotactic, and isotactic
stereoblock polypropylenes, including the inherent 3 monomer
unit “mistakes” to which Dr. Scott refers, all have molecular
chains in which syndiotactic and isotactic sequences are
present at a length of 3 to 50 monomer units. However, the
evidence also shows that conventionally produced syndiotactic,
highly isotactic, and isotactic stereoblock polypropylenes do
not have molecular chains in which syndiotactic and isotactic
sequences are present and their average sequence length is 3
to 50 monomer units when calculated in accordance with
Winter’s formulas (I) and (II) or the formulas published in
Buschermohle’s Thesis
(DE 9, pp. 38-39). Compare again the average sequence length
Dolle reports for the syndiotactic and isotactic sequences of
the polypropylenes prepared in accordance with Examples 3-12
of Dolle Application 08/147,006 to Winter’s calculations of
the average sequence length for the syndiotactic and isotactic
sequences of the syndiotactic and isotactic-stereoblock
polymers prepared in accordance with Examples 1, 1A, 20, 22,
22A, 33, and 33A of Ewen et al., U.S. Patent 4,892,851 (EE I),
66
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