Patent ID: 8758504
Filing Date: 2014-06-24
Classification: C04B

Abstract:
1. A cement grinding additive composition, comprising: (a) at least one amine cement grinding additive comprising triisopropanolamine, diethanolisopropanolamine, diisopropanolethanolamine, or mixtures thereof; and (b) tri-iso-butylphosphate present in an amount of 0.05 to 5.0 percent based on total weight of said cement grinding additive composition, said tri-iso-butylphosphate being represented by the formula (c) a biopolymer polysaccharide gum present in an amount of 0.05 to 1.0 percent based on total weight of said cement grinding additive composition, said biopolymer polysaccharide gum being selected from the group consisting of Diutan, welan, and Xanthan; and (d) water in amount of 35 to 95.0 percent based on total weight of the cement grinding additive composition, whereby said tri-iso-butylphosphate is uniformly disbursed throughout said cement grinding additive composition, whereby, if said cement grinding additive composition were placed in a vessel, said tri-iso-butylphosphate displays uniformity of tri-iso-butylphosphate dispersal within the entire volume of the composition wherein the average concentrations of tri-iso-butylphosphate between the top and bottom one-third fractions of the vessel should not differ by more than 20%, when stored at 100 degrees Fahrenheit for 10 days.