| abstract |
The invention relates to novel maleic anhydride terpolymers. The products of the invention are terpolymers of maleic anhydride, of acrylamide or of methacrylamide and of a third monomer chosen from octene, styrene, ctc. It also relates to copolymers of maleic anhydride and acrylamide. A novel process using a mixture of an aromatic solvent and a ketone solvent and a temperature of at least 120 degrees C makes the polymers of the invention insoluble in water at room temperature. Application of the hydrolyzed form of the terpolymer as an anti-scale agent. |