Methods and systems associated with a high concentration slurry formulations
AssigneeNNA Polymers, Inc.
InventorsChao Yang, Jianbo Sun, Yongsheng Xu
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Abstract
High concentration polymer slurries contain up to 70 weight percent active polymer in a hydrophobic solvent base treated with suspending agents, dispersants, and thinning agents. The slurries are prepared by mixing a solid polymer with an invert polymer emulsion without the need for specialized field equipment. These slurries provide increased polymer concentration and improved dispersibility of solid polymer or other hydrophilic colloids. The resulting formulations offer technical advantages, including enhanced efficiency, ease of handling, and cost-effectiveness.
Claims11
A high concentration polymer slurry formulation comprising:
- (i) a solid polymer (A) selected from polyethylene oxide, polysaccharide, polyacrylamide, and polyacrylate;
- (ii) a hydrophobic solvent base oil that is insoluble in water and does not solvate or swell hydrophilic colloids;
- (iii) an inverse emulsion (E) comprising a water-soluble polymer (B) including acrylamide repeat units and an oil phase, wherein the inverse emulsion includes a reactive surfactant monomer unit (R1), and a rigid monomer unit (R2) having a structure build into the backbone of the formulation that includes moieties that are configured to resist bending and rotation, providing steric hindrance to prevent droplet coalescence;
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- (iv) a suspending agent to facilitate suspension of said particles in the formulation.
Dependencies are inferred from the claim text.