Interference No. 102,922
Interference No. 103,088
APPENDIX B
The count in Int. No. 103,088 is as follows:
Count 1
In a process for the manufacture of paper and
paperboard, said process comprising forming an
aqueous dispersion of cellulosic fibers, forming a
wet laid cellulosic sheet by dewatering said aqueous
dispersion and drying the cellulosic sheet to form
the desired paper and paperboard product, the
improvement comprising adding to the paper stock
dispersion any time prior to sheet formation a
filler consisting essentially of (a) from about 97
to about 99.9% by weight of inorganic particle
selected from the group consisting of calcium
carbonate, clay, titanium dioxide, talc and hydrated
silica; (b) from about 0.025 to about 2.7% by weight
of cellulose reactive size selected from the group
consisting of ketene dimer having the general
formula
R -CH--C=CH-R
1 2
* *
O=C--O
where R1 and R2 are hydrocarbon groups having from 8
to 30 carbon atoms, alkenyl succinic anhydrides
wherein the alkenyl group has from 12 to 30 carbon
atoms, hydrophobic isocyanates, carbamoyl chlorides
and stearic anhydride; (c) from about 0.00625 to
about 2.75 by weight of dispersing agent system
comprising at least about 95% by weight of cationic
dispersing agent selected from the group consisting
of cationic natural polymers, cationic synthetic
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