Process for preparing aqueous dispersion of rosin-base materials

Abstract

This invention provides a process for preparing an aqueous dispersion of a rosin-base material by a so-called inversion method, the process being characterized in that the dispersant is at least one member selected from the group consisting of: (a) salt of sulfonic acid represented by the formula ##STR1## wherein R.sup.1 is a hydrocarbon residue having 4 to 18 carbon atoms, m is an integer of 1 or 2, n is an integer of 4 to 25, X is hydrogen or hydroxyl, and M is a monovalent cation, and (b) salt of sulfuric acid half ester represented by the formula ##STR2## wherein R.sup.2 is hydrogen or lower alkyl, A is straight-chain or branched-chain alkylene having 2 to 3 carbon atoms, p is an integer of 4 to 25, and Q is a monovalent cation. The aqueous dispersion obtained by the process of the invention have excellent sizing effects, very high storage, mechanical and dilution stabilities, and greatly reduced foaming properties.

Dependencies are inferred from the claim text.