Emulsion compositions comprising polyacrylamide copolymer and ethylene oxide—propylene oxide copolymer

摘要

A polyacrylamide-based composition as a microemulsion is provided in the form of a water-in-oil microemulsion with polyacrylamide dissolved in the water phase, and further comprising ethylene oxide-propylene oxide block copolymer. Specifically, the present invention includes, dissolved in the water phase, a polyacrylamide copolymer and an EO/PO block copolymer, with the water phase mixed with an oil phase. Preferably, the present invention may further comprise the presence of at least one fatty acid and/or at least one nonionic surfactant to stabilize the microemulsion. In addition, the present invention may further comprise effective amount of other components, such as pesticides and/or fertilizers, that may be delivered to trees, plants or other vegetation.

主权项

1. An agricultural composition comprising a water-in-oil microemulsion of a discontinuous water phase containing a polyacrylamide polymer or copolymer, a continuous oil phase comprising at least one oil in which the water phase is dispersed, a fatty acid, and an ethylene oxide-propylene oxide block copolymer, wherein the agricultural composition is made by combining a nanoemulsion of the polyacrylamide polymer or copolymer with the at least one oil and the ethylene oxide-propylene oxide block copolymer, and wherein the polyacrylamide polymer or copolymer is present in a solids content between about 2% by weight and about 15% by weight of the agricultural composition.