Appeal No. 1998-3049
Application No. 08/463,558
discharging the pulp from said pressurized mixer into a
bleaching reactor;
and
separating from the pulp, after bleaching, oxygen as the main
residual gas.
REFERENCE
In support of his rejections, the examiner relies on the
following prior art references1:
Phillips et al. (Phillips) 4,372,812 Feb. 8, 1983
Meredith 4,902,381 Feb. 20, 1990
(Filed Dec. 9, 1988)
Sundman et al. (Sundman) 1065105 Oct. 30, 1979
(Published Canadian Patent)
Kimura et al. (Kimura) 54-30902 Mar. 7, 1979
(Published Japanese Kokai Patent Application)
Coste et al. (Coste) 2,620,744 A1 Mar. 24, 1989
(Published French Patent)
Soteland et al. (Soteland), “The Effect of Ozone on Mechanical
Pulps,” Norsk Skogindustri, pp. 165-169 (June 1974).
Appellants’ admission at page 11 of the specification (hereinafter
referred to as “admitted prior art”).
Appellants rely on the following references:
Mjoberg et al. (Mjoberg), “Ozone for Pulp Bleaching,” Jaakko Poyry
AB (Sep. 1992).
Grace et al. (Grace), “Alkaline Pulping,” Pulp and Paper
Manufacture, 3rd Ed., Vol. 5, pp 425-460 (1989).
1 Our reference to the published Japanese Kokai patent
application and French patent is to the corresponding English
translations of record.
3
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