Terpolymers of maleic anhydride and their use as scale control agents

摘要

Terpolymers of maleic anhydride, acrylamide or methacrylamide and a third monomer consisting of octene, styrene and the like.P P Copolymers of maleic anhydride and acrylamide or methacrylamide. PP Use of the hydrolyzed form of the terpolymer as a scale control agent.P PNovel process employing a mixture of aromatic and ketonic solvent and a temperature of at least 120 C. which renders the polymers of the invention insoluble in water at ambient temperature.