Rohm and Haas Company

Samuel S Kim

William D Emmons

Andrew J Kielbania, Jr

Travis E Stevens

Donald A Winey

This invention relates to water insoluble copolymer aqueous dispersions stabilized by multiple carboxylic acid functional comonomer residues against shear-induced coagulation. These copolymer dispersions are useful as pressure sensitive adhesives, and as binders for textiles, paper, non-woven materials, and coatings.

Stabilized aqueous copolymer dispersions

Print pastes are thickened by a thickener concentrate containing about 5-50% by weight of a nonionic polyurethane having a molecular weight of at least 10,000 and at least 3 hydrophobic branching groups linked through hydrophilic polyether segments, a surfactant in an amount providing a thickener to surfactant weight ratio of about 1:0.01 to about 1:10, about 5-35% by weight of a non-aqueous organic diluent, and 0-65% by weight of water.

Nonionic polyurethane thickener with surfactant cothickener and organic

Bis-ketimine esters of the general formula ##STR1## wherein, for example, R and R.sup.1 are alkyl groups,

Growing community of inventors

Huntingdon Valley, PA, United States of America

Samuel S Kim