Appeal No. 1999-1066
Application No. 08/756,440
the main chain of the polyimide precursor comprises e mols,
f mols, n mols, m mols, h mols and i mols (where each of e, f, n, m, h and i
is 0 or a positive integer) of structural units represented by the formulae
(6), (7), (8), (9), (10) and (11), respectively,
3
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