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

摘要

A water-in-oil microemulsion, including a polyacrylamide, a fatty acid, a surfactant, an oil continuous phase, and an aqueous discontinuous phase in the oil continuous phase. The fatty acid includes a tall oil fatty acid, oleic acid, or a combination of a tall 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.

主权项

1. A method of dispersing a water-in-oil microemulsion into an aqueous media and applying the water-in-oil microemulsion in an agricultural application, comprising:
dispersing a water-in-oil microemulsion in an aqueous medium, the water-in-oil microemulsion comprising
a polyacrylamide;a fatty acid comprising a tall oil fatty acid, oleic acid, or a combination of a tall oil fatty acid and oleic acid;a surfactant;an oil continuous phase; andan aqueous discontinuous phase in the oil continuous phase, wherein 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; allowing micelles of the water-in-oil microemulsion to burst in the aqueous medium; and applying the aqueous medium with the water-in-oil microemulsion dispersed therein to at least one seed, at least one growing crop, at least one forest area, at least one turf or other vegetation, at least one soil, at least one crop, or a combination thereof.