Appeal No. 1998-0870
Application No. 08/325,015
In a working example, Kinoshita shows a 17-inch TV Braun
tube CRT panel that has been spin coated with a first layer
film of an aqueous mixture comprising 1.9 g of antimony doped
tin oxide, 0.1 g of carbon black fine powder, 0.15 g of a 1%
aqueous solution of a polymeric dispersant, and 97.85 g of
water (Preferred Embodiment 17 together with page 6, lines 35-
41). After the first layer is coated, a second layer of
tetraethoxysilane, HCl, and ethanol is deposited thereon.
Thus, the examiner correctly found that the subject
matter of claim 1 on appeal differs from Kinoshita’s
disclosure only in that a polypyrrole and a steric stabilizer
(i.e., a dispersant or a surfactant) therefor is used instead
of carbon black and a dispersant for the carbon black.
However, Kinoshita’s teaching is not limited to the use of
carbon black or inorganic materials. Kinoshita repeatedly
teaches the use of any “black colored electrically conductive
powder” (page 3, lines 31-33; page 4, lines 43-45; page 6,
lines 28-32; page 21, lines 36-38).
Wessling, like Kinoshita, is concerned with antistatic,
electroconductive materials and the elimination of
electrostatic charges (abstract; column 1, lines 7-10).
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