Patent ID: 8623979
Filing Date: 2014-01-07
Classification: C04B

Abstract:
1. A dispersant composition for improving the slump properties of a cement admixture, the dispersant composition comprising a terpolymer comprised of a random combination of structural units (A), (B) and (C) remaining after polymerization, wherein: (A) is one or more monomers having functional groups selected from the group consisting of carboxylic acids, amido carboxylic acids, C1-C6 alkyl esters of carboxylic acids, C1-C6 alkyl ester of amido carboxylic acids, hydroxylated C1-C6 alkyl esters of carboxylic acids, hydroxylated C1-C6 alkyl esters of amido carboxylic acids and sulfonic acids: (B) is according to Formula (I): (C) is according to Formula (II):