Patent ID: 7312291

Claim:
A concrete admixture additive having the formula: wherein R 1 is hydrogen or methyl; R 2 is hydrogen or methyl; X is selected from the group consisting of C 6 -C 10 aromatic group, C 6 -C 10 sulfonated aromatic group, C 5 -C 6 cyclic alkyl group, and C 1-10 alkoxy group; Y is selected from the group consisting of wherein R 5 and R 6 are respectively selected from the group consisting of hydrogen, halogen, C 1-10 alkyl group, C 6-10 aromatic group, C 6-10 fluoroaromatic group, C 1-10 alkoxy group, C 2-10 alkenyl group, C 7-11 aromatic alkyl group, C 8-12 aromatic alkenyl group and C 7-11 alkyl aromatic group; R 3 and R 4 are respectively selected from the group consisting of NHR 7 , OR 7 , OH and O − M + , wherein M + is an alkaline metal cation, alkaline earth metal cation, or ammonium, R 7 is an oxyalkenyl or polyoxyalkenyl, having the formula (ZO) p R 8 , wherein Z is a C 2 -C 5 aliphatic group, p is an integer from 5 to 100, and R 8 is a C 1 -C 5 aliphatic group or C 6 -C 10 aromatic group; l is an integer from 0 to 25; m is an integer from 1 to 25; and n is an integer from 0 to 50, and both l and n are not zero simultaneously.