Appeal No. 1998-0189
Application 08/196,933
(2) The examiner and appellant should reconsider the patentability of claim 6 in
light of combined teachings of JP’279 and Sugiyama7.
In view of the disclosure at page 79, lines 6-15, of the instant specification, the
term “quaternary acrylic copolymer latex” recited in claim 6 is interpreted by this merits
panel to refer to acrylic copolymer latexes that comprise a quaternary ammonium
moiety.
As set forth in finding 15, JP’279 describes an ink jet recording medium that
comprises 1-methyl-5-mercapto tetrazole. Claim 6 recites that the active compound can
be a “tetrazole.” JP’279 further teaches that if the water-resistance of the ink image on
the recording medium needs to be enhanced, the recording medium can comprise a
cationic resin. The cationic resin includes polymers comprising a quaternary
ammonium moiety. Translation, page 8, lines 7-9, and page 8, line 23, through page 9,
line 11.
Sugiyama describes an ink jet recording sheet that comprises a basic polymer
latex. The polymer latex includes quaternary ammonium-containing acrylic copolymers.
Column 4, lines 22-41, and 60-65; column 7, line 26, through column 8, line 25; and for
example, polymers (4), (5), (7), and (8), at columns 8 through 9. Sugiyama teaches
that since the basic polymer latex is insoluble in water and has a strong mordanting
7Sugiyama is cited on the form PTO-1449 filed Oct. 31, 1994, attached to Paper
No. 4.
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