Appeal No. 2007-0111
Reexamination 90/006,297
1 72. The ’227 Italian application discusses the presence of ethylene only in
2 the context of “[s]mall amounts” that do not inhibit propylene
3 polymerization.
4 73. In discussing the catalyst composition, the ’227 application states:
5 “[N]ot all the starting agents indicated by Ziegler for the production of
6 high polymers of ethylene are effective for the polymerization of
7 ethylene-free propylene.” (Translation at 3.)
8 74. In Example 5, the ’227 application explains: “Small amounts of
9 ethylene contained in the propylene employed do not interfere with
10 the polymerization itself.” (Id. at 10.)
11 75. The appealed claims do not recite propylene as a copolymerizable
12 monomer.
13 76. The appealed claims do not require the production of highly
14 crystalline propylene polymers.
15 77. Appealed claim 1 recites the polymerization of ethylene (in any
16 relative amount) with a specified C4 or higher alpha-olefin in the
17 presence of the specified catalyst composition to form polymers
18 having any degree of crystallinity.
19 78. Italian priority application 25109 describes the production of solid
20 propylene polymers or specified alpha-olefin polymers having “a
25
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