Appeal No. 1998-1726
Application No. 08/681,117
BACKGROUND
According to Appellants, the invention is directed to a process for pattering a
fluorescent poly(arylenevinylene) (PAV) film. These films are used in
electroluminescent devices. (Brief, page 2). Claims 1 and 8 which are representative
of the invention are reproduced below:
1. A process for forming a pattern which comprises irradiating with light a film of a
poly(arylenevinylene) polymer represented by formula (I)
wherein Ar is a substituted or unsubstituted divalent aromatic
hydrocarbon group or a substituted or unsubstituted divalent heterocyclic
ring group, and the aromatic hydrocarbon group and the heterocyclic ring
1 2
group may be a fused ring, R and R , independently or each other, are
selected from the group consisting of H, CN, alkyl, alkoxy, a substituted
aromatic hydrocarbon group, an unsubstituted aromatic hydrocarbon
group, a substituted aromatic heterocycle group and an unsubstituted
aromatic heterocycle group, wherein the unsubstituted or substituted
aromatic hydrocarbon group and the unsubstituted or substituted aromatic
heterocyclic group may be fused rings, and n is an integer from 5 to
30,000.
8. An organic electroluminescent device comprising a layer of a patterned
poly(arylenevinylene) polymer film produced by the process according to
claim 1.
As evidence of unpatentability, the Examiner relies on the following
references:
Holmes (Holmes ‘809) 5,328,809 Jul.. 12, 1994
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