Appeal 1997-2589
Application 08/423,481
[c] at stoichiometry of about 95 percent
alcohol functional groups to isocyanate
functional groups,[2]
said polyurethane having a conductive filler of
ferric chloride.
Examiner's Rejection
4. The sole rejection remaining on appeal is that
claims 1-2 and 5-6 are said to be unpatentable under 35 U.S.C.
§ 103 over Wilson and Baker.
5. In a light most favorable to the examiner,
Wilson can be said to describe an endless developer member
which is the same as that of applicants' claim 1, differing
solely in that it does not contain ferric chloride.
6. In fact, Wilson describes the use of a complex
of ethylene glycol or an oligoethylene glycol with an
ionizable zinc halide salt (col. 5, lines 46-53).
7. Wilson also describes the prior art use of a
similar complex with sodium iodide, lithium iodide and sodium
thiocyanate (col. 4, lines 39-47).
In the Appeal Brief (page 4), applicants explain that a "stoichiometry of about2
95 percent alcohol functional groups to isocyanate functional groups" means "that there
be 0.95 OH group to 1 NCO group." An )OH group is an alcohol group. An )NCO group is
an isocyanate group.
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