Patent ID: 7763698

Claim:
A composition for use in reducing aluminosilicate scale in an alkaline industrial process comprising a polymer according to the formula: where w=1-99.9%, x=0.1-50%, y=0-50%, z=0-50%; and Q=C1-C10 alkyl, aryl, amide, acrylate, ether, or COX′R where X′=O or NH; R=H, Na, K, NH 4 , C1-C10 alkyl or aryl; X=NH, NP where P=C1-C3 alkyl or aryl, or O; R′=C1-10 alkyl, or aryl; V″=H, C1-C3 alkyl, aryl, Na, K or NH 4 or forms an anhydride ring; R″=H, C1-C3 alkyl, aryl, Na, K or NH 4 ; and D=NR1 2 or OR1 wherein R1=H, C1-C20 alkyl, C1-C20 alkenyl or aryl, with the proviso that all R, R″, V″ and R1 groups do not have to be the same, wherein said polymer is made by reacting a polymer containing anhydride groups with a compound containing —Si(OR″) 3 .