Interference No. 102,922
Interference No. 103,088
R-CH=C-CH-R
* *
O-C=Ø
where R is a hydrocarbon group selected from the
group consisting of alkyl with at least 8 carbon
atoms, cycloalkyl with at least 6 carbon atoms,
aryl, aralkyl and alkaryl, the dimer having been
made cationic by treatment with at least one of a
polyamino-amide and a polyamine polymer reacted with
an epoxidized halohydrin compound to form tertiary
and quaternary amine groups on the dimer surface, to
an aqueous slurry of a filler material selected from
the group consisting of finely ground natural
calcium carbonate from limestone, precipitated
calcium carbonate, clay, titanium dioxide, talc,
silica/silica pigments and combination thereof, said
slurry containing solids in an amount of from about
1 to about 76 percent of weight; and maintaining
said slurry under agitation at a temperature of from
about 5 degrees C to about 70 degrees C
or
A process for the preparation of treated filler
consisting essentially of (I) dispersing inorganic
particles selected from the group consisting of
calcium carbonate, clay, titanium dioxide, talc and
hydrated silica in water at a solids content of from
about 10 to about 80% by weight; (ii) adding under
agitation an aqueous dispersion consisting
essentially of (a) from about 1 to about 30% 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
36
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