Appeal 2007-0650
Application 10/808,264
copper compound and a base.
26. A process of preparing an aromatic ether oligomer
comprising the formula:
T–Ar-(–O–Ar–)n–T ;
wherein Ar is an independently selected divalent
aromatic radical with or without substituents
containing one or more fused aromatic rings, one
or more non-fused aromatic rings without
intervening functional groups, or combinations
thereof wherein the radical sites are on the same or
different aromatic rings;
wherein T is terminating group independently selected
from the group consisting of –OH and –X;
wherein X is independently selected from the group
consisting of Br and I;
wherein n is an integer greater than or equal to 1;
comprising the step of reacting a dihydroxyaromatic with a
dihaloaromatic;
wherein the reaction is performed in the presence of a
copper compound and a base; and
wherein either the dihydroxyaromatic or the
dihaloaromatic is present in an excess amount.
The Examiner relies on the following prior art references as
evidence of unpatentability:
Keller US 4,259,471 Mar. 31,1981
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