Coating formulation with a poly(oxyalkylene-urethane) associative thickener modified with a hydrophobic oligomer
The present invention relates to a composition comprising a) an aqueous dispersion of polymer particles and b) a hydrophobically modified poly(oxyalkylene-urethane) rheology modifier having a 1) backbone; and 2) a hydrophobic portion represented by Fragment I: where R and R1 are defined herein. The composition is useful as an aqueous coating formulation that exhibits a highly shear thinning rheology profile suitable for spray applications to provide high sag resistance without adverse impact on gloss or corrosion resistance. 
Rohm and Haas Company Dow Global Technologies LLC
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Antony K. Mark Jessica Joey W. Duane R. John J. Wenqin
Van Dyk Langille Levin Storer Romer Rabasco Wang