Appeal No. 1997-3485
Application No. 08/431,734
Claims 1 and 2 are representative of the subject matter
on appeal and read as follows:
1. An infrared photosensitive element comprising:
a support bearing an infrared radiation-sensitive silver
halide material; and an antihalation layer comprising a basic
antistatic agent, an acid having a pKa less than 4.2 in an
amount equal to at least 0.50 mole equivalent of acid to 1
mole equivalent of base in said basic antistatic agent and
sufficient antihalation dye to provide a transmission optical
density at the wavelength of maximum absorbance of said dye of
at least 0.05 to 3.0 after coating.
In support of his rejection, the examiner relies on the
following prior art references:
Habu et al. (Habu) 3,743,608 Jul. 3, 1973
Ishihara et al. (Ishihara) 3,811,887 May 21, 1974
Gomez et al. (Gomez) 5,380,635 Jan. 10, 1995
(Filed Feb. 28, 1994)
Helland et al. (Helland) 5,395,747 Mar. 7,
1995
(Filed Dec. 20, 1993)
Claims 1 through 30 stand rejected under 35 U.S.C. § 103
as unpatentable over the combined disclosures of Gomez,
Helland, Ishihara and Habu.
We reverse.
The claimed subject matter is directed to a photographic
or photothermographic element comprising a support and an
antihalation layer. See specification, page 1, together with
claims 1 and 2. The antihalation layer contains a basic
2
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