Appeal 2007-3258
Application 10/916,195
1 In Fig. 1, layers 26 and 28 are comprised of unmodified packaging
2 polyester such as PET [polyethylene terephthalate—col. 1:49].
3 Col. 20:60-63.
4 Middle layer 30 is comprised of the oxygen scavenging copolymer of
5 the Cahill invention. Col. 20:65-67.
6
7 Cahill Fig. 1 shows a cross sectional view of an oxygen
8 scavenging bottle wall and film construction
9
10 The Examiner found, and Goodyear does not disagree, that Cahill
11 describes the use of a polyester copolymer comprising a copolycondensate
12 of a polyester and a polyolefin oligomer. Examiner's Answer, page 3.
13 The oxygen scavenging copolymers of Cahill are copolycondensates
14 comprising predominantly copolyester segments and hydrocarbon segments
15 wherein the hydrocarbon segments need be present only in sufficient
16 quantity to provide the needed oxygen scavenging capacity. Col. 9:61-65.
17 Masson
8
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