Aqueous dispersions of wax blends and a water-soluble cationic resin and paper sized therewith

Claim 1

An aqueous dispersion of finely divided solid particles consisting essentially of, by weight A. from about 5% to about 50% of finely divided solid particles, said solid particles being selected from the group consisting of 1. a blend consisting essentially of, by weight, from about 99% to about 93% of a wax selected from the group consisting of petroleum waxes, synthetic hydrocarbon waxes, and mixtures thereof and from about 1% to about 7% of a C 18 to C 24 saturated fatty acid, 2. a blend consisting essentially, by weight, from about 99.5% to about 75% of a wax selected from the group consisting of petroleum waxes, synthetic hydrocarbon waxes, and mixtures thereof and from about 0.5% to about 25% of at least one alkyl ketene dimer having the formula [RCH=C=O] 2 where R is an alkyl radical having 10 to about 20 carbon atoms, and 3. mixtures of (1) and (2), B. from about 0.5% to about 20% of water-soluble cationic resin dispersing agent selected from the group consisting of i. a water-soluble polyaminopolyamide--epichlorohydrin resin, ii. a water-soluble alkylenepolyamine--epichlorohydrin resin, iii. a water-soluble poly(diallylamine)--epichlorohydrin resin, and iv. mixtures of any two or more of (i), (ii), and (iii), and C. water to 100%.