Patent ID: 9617503
Date: 2017-04-11
CPC Classifications: A61K,A61Q,C09K,C11D

Claim:
1. A method for modifying the properties of a composition of a suspension of dispersed solid or liquid particles in an aqueous medium, comprising adding a polymer to the composition, increasing the viscosity of the composition and promoting the suspending of the dispersed solid or liquid particles in the aqueous medium, wherein said polymer is prepared by inverse emulsion polymerization of monomers A wherein the molar ratio of the monomers A wherein the composition exhibits an ionic strength of at least 0.7 mol/l, and wherein the dispersed particles comprise solid particles comprising sand, density-modifying particles, excavation products, debris, or polymeric particles, and/or liquid particles comprising synthetic oils, oils of vegetable origin, or oils of mineral origin, wherein the composition of the suspension of dispersed solid or liquid particles in the aqueous medium is at a temperature of greater than or equal to 70° C. wherein the suspension comprises greater than or equal to 0.5% of the polymer; and wherein the aqueous medium is a saline composition that comprises at least 35 g/l of a salt.