Appeal No. 95-1250
Application 07/901,722
where n is 0 to 100, the phenolic units of the resin being directly bonded to one another through
positions ortho or para to the OZ group; Z is selected from the group consisting of H and an ester
linkage with a pyromellitic dianhydride moiety; and Y is present at a position meta or para to the OZ
group and is selected from the group consisting of a halogen atom, an aryl group, a phenylalkyl
group, an alkyl group, a carboxyl group of the formula -COOR where R is H, an alkyl group or a
phenylalkyl group, an alkoxy group, an aryloxy group, and an amino group of the formula - NR R
1 2
where R and R are the same or different and represent H or an alkyl group.1 2
The Prior Art
The following prior art references are relied upon by the examiner in support of the rejections
of the claims:
Hayashi et al. (Hayashi) 3,874,895 Apr. 1, 1975
Pokora et al. (Pokora) 4,647,952 Mar. 3, 1987
Nikolaev et al. (Nikolaev), “Curing a Novolak Phenolformaldehyde Resin with Pyromellitic
-3-
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