| abstract |
Polymeric materials represented by the general structure ##STR1## WHERE Q is a polymeric setment of ethylenically unsaturated monomers, lacking Zerewitinoff hydrogen atoms; n X is the residue of a chain transfer agent; n Y is the residue of a di-, tri, or tetraisocyanate radical after removal of isocyanage groups; n A is the residue of a mercapto-, hydroxy-, or amino-alkyl alkoxy silane radical; and n m and n are 1, 2 or 3, (the total not exceeding 4), are useful as pigment dispersing aids in coating compositions. |