High performance alkali - swellable rheological additives for aqueous systems

摘要

A composition of matter useful as a rheological additive for aqueous compositions comprising the reaction product of (a) about 15 to 80 percent by weight of one or more C₃-C₈ α,β-ethylenically unsaturated carboxylic acid monomers; (b) about 15 to 85 percent by weight of one or more copolymerizable vinyl non-ionic ethylenically unsaturated monomers; and (c) about 0.5 to 25 percent by weight of one or more vinyl monomers containing an aralkyl substituted phenol hydrophobe. The compositions are particularly useful in paints, especially latex and other water-miscible paints, and other coating compositions.