Appeal No. 2007-0111
Reexamination 90/006,297
1 Uniquely, the initial polymerization products obtained by the present
2 method are mixtures of linear, head-to-tail amorphous and crystalline
3 polymers having no branches longer than R. The polymers can be
4 separated from the polymerizate by fractional dissolution. The
5 crystalline polymers may comprise as high as 30% or even up to 55%
6 of the mixture and have high molecular weights and fiber forming
7 properties. The amorphous polymers may also have relatively high
8 molecular weights and may exhibit rubberlike properties. [Emphasis
9 added.]
10
11 The specification further stated (pages 4-5):
12 It has been found, also, that even when ethylene is polymerized with
13 the aid of the special promoters obtained by reaction of the heavy
14 metal and metal alkyl compounds, in the ratios proposed for
15 promoting ethylene polymerization, the presence of any substantial
16 amount of the higher olefins inhibits polymerization of the ethylene,
17 while the higher olefins, if they react at all, do so only at very low
18 reaction rates and, in any case, without yielding polymers of the type
19 with which this invention is concerned. [Emphasis added.]
20
21 The specification, like the one in the prior ’097 application, included a clear
22 and unmistakable statement that ethylene, if copolymerized, is present in only
23 “small amounts.” This statement is reproduced as follows (page 10):
24 The method of this invention may be used for polymerizing vinyl
25 hydrocarbons of the formula given including propylene, butene-1,
26 pentene-1, hexene-1, styrene, and so on, as well as mixtures thereof
27 and mixtures of the vinyl hydrocarbon with small amounts of ethylene.
28 [Emphasis added.]
29 And, original claim 1 of 03/710,840 read:
30 A process for producing polymerizates of unsaturated hydrocarbons of
31 the general formula
32
33 CH2 = CHR
64
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