Patent ID: 7767750

Claim:
A composition comprising a particulate solid, an organic medium and/or water and a compound of formula 1, 2 or 2a including salts thereof wherein X-*-*-X in Formulas 2 and 2a represents the polyamine and/or polyimine (Z); Q is the chain RO—(Y) x -T-NH-A-; q′ in Formula 2 is from 2 to 2000; Q 1 represents a polyester and/or polyamide chain of formula R 1 -G-(B) s —; R 1 is hydrogen or C 1-50 — optionally substituted hydrocarbyl; G is a divalent bond or carbonyl; B is the residue of one or more amino carboxylic acids and/or one or more hydroxy carboxyl acids or lactones thereof; q and s in Formula 2a are positive integers greater than zero; and also in Formula 2a the sum of q+s is from 2 to 2000; R is C 1-50 -optionally substituted hydrocarbyl; Y is C 2-4 -alkyleneoxy; T is C 2-4 -alkylene; A is the residue of a dibasic acid or anhydride thereof, wherein A is not the residue of a dibasic acid or anhydride characterized as having an aliphatic carbon to carbon double bond; Z is the residue of a polyamine and/or polyimine; W is the residue of an oxide, urea or dibasic acid or anhydride thereof; x is from 2 to 60; subscript 0-v is subscript from 0 to v; and v represents the maximum available number of amino and/or imino groups in Z which does not carry the group RO—(Y) x -T-NH-A-.