Water-in-oil polyacrylamide-based microemulsions and related methods

Abstract

A water-in-oil microemulsion, including a polyacrylamide, a ratty acid, a surfactant, an oil continuous phase, and an aqueous discontinuous phase in the oil continuous phase. The fatty acid includes a tail oil fatty acid, oleic acid, or a combination of a tail oil fatty acid and oleic acid. The water-in-oil microemulsion contains 6 to 48 parts by weight of the polyacrylamide, 30 to 62 parts by weight of the fatty acid, and 20 to 44 parts by weight of the surfactant per 100 parts by weight of the polyacrylamide, the fatty acid, and the surfactant combined.

Dependencies are inferred from the claim text.