Patent ID: 9115288
Filing Date: 2015-08-25
Classification: C08K,C09D

Abstract:
1. A water-containing coating composition comprising a) a binder; b) a neutralized hydrophobically modified alkali soluble emulsion having pendant COO − groups; c) alkali metal cations; and d) an alkanolamine or a salt thereof; wherein the alkanolamine is characterized by having: 1 to 2 nitrogen atoms; 2 to 4 hydroxyl groups; an equivalent molecular weight per nitrogen atom in the range of 90 to 180 Daltons; a boiling point of greater 250 ° C. at 760 Torr pressure; and a pK a in the range of 8.8 to 9.9; wherein the molar concentration of alkanolamine or salt thereof is 10 to 70 mole percent based on the molar concentration of COO − groups in the composition; the mole ratio of alkanolamine to alkali metal cations is in the range 0.10 to 0.70; and the pH of the coating formulation is in the range of 7 to 10.