Patent ID: 7005125

Claim:
The product of mixing (A), a polymer characterized structurally by repeat units of (a) a monomer-maleic anhydride alkyl half-ester or full acid, (b) maleamic acid, and (c) maleimide, of the formulas: where: R, R 1 , R 2 and R 3 are selected from H, alkyl, alkoxy, cycloalkyl, aryl, ester, acid, hydroxy, hydroxyalkyl, amido, fluoro, halo and silyl, and R 4 is H or alkyl; and R′ is a polyoxyalkylene amine, having the formula: where R 5 and R 6 are selected from H and alkyl; and n and m are integers from 1–50; and x, y and z are present, in mole %, of 0–99.9, 0–50 and 0.1–100, respectively; and (B) a compound or polymer having a carboxylic acid functionality.