Appeal No. 2002-1229
Application No. 09/140,809
comprised of specifically defined first, second and third
monomers. Further details of this appealed subject matter are
set forth in representative independent claim 1 which reads as
follows:
1. An improved method of printing an ink-jet ink composition
comprising a colorant and a carrier material wherein the
improvement comprises the steps of (a) printing the ink onto a
cellulose substrate and (b) coating the printed substrate with a
cationic, water-soluble polymer comprised of a first monomer, a
second monomer, and a third monomer wherein the first monomer is
N-vinylpyrrolidinone, the second monomer is selected from the
group consisting of N-methylolacrylamide,
N-methylolmethacrylamide, N–isobutoxymethylacrylamide, and
mixtures thereof, and the third monomer is represented by the
formula:
CH2=C(R)COY(CH2)nN+R’R”R’”X-
wherein R is a hydrogen atom or a methyl group; Y is O or NH; n
is an integer from 1 to about 4; R’, R”, and R’” are hydrogen or
alkyl or aralkyl groups independently containing from 1 to about
18 carbon atoms; and X is an anion such as chloride, bromide,
tosylate, or alkylsulfate.
The references set forth below are relied upon by the
examiner as evidence of obviousness:
Maslanka et al. (Maslanka) 4,235,982 Nov. 25, 1980
Lehr 5,006,644 Apr. 9, 1991
Mitchell et al. (Mitchell) 5,026,427 Jun. 25, 1991
Nakashima et al. (Nakashima) 5,126,392 Jun. 30, 1992
Mochizuki 5,266,969 Nov. 30, 1993
Bermes et al. (Bermes) 5,431,723 Jul. 11, 1995
Kashiwazaki et al. (Kashiwazaki) 5,439,514 Aug. 8, 1995
Kado et al. (Kado) 5,506,295 Apr. 9, 1996
Kappele et al. (Kappele) 5,656,071 Aug. 12, 1997
Sano et al. (Sano) 5,690,723 Nov. 25, 1997
Pawlowski 5,690,722 Nov. 25, 1997
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