Patent ID: 9631082
Date: 2017-04-25
CPC Classifications: A01N,C02F,C08K,C08L

Claim:
1. A water-in-oil microemulsion, comprising: an anionic 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; and an aqueous discontinuous phase in the oil continuous phase, wherein the water-in-oil microemulsion contains 6 to 48 parts by weight of the anionic 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 anionic polyacrylamide, the fatty acid, and the surfactant combined.