Polyacrylamide based agricultural compositions
AssigneeExacto, Inc.
InventorsFranklin E. Sexton, Ryan T. Strash, Todd J. O'Connell
Life of this patent
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Abstract
A polyacrylamide based agricultural composition as a microemulsion is provided in form of a water-in-oil microemulsion with polyacrylamide dissolved in the water phase where the polyacrylamide solids content is from about two up to about 15 percent by weight, which is then further diluted in water at the time of use to impart the desired characteristics of the polymer to the water phase or to the material to which the water phase is applied.
Claims26
An agricultural water-in-oil microemulsion composition having a weight and comprising:
- up to about 15 percent by weight, based on the weight of the agricultural water-in-oil microemulsion composition, of polyacrylamide polymer or copolymer solids,
- up to about 20 percent by weight, based on the weight of the agricultural water-in-oil microemulsion composition, of at least one fatty acid, and
- up to about 20 percent by weight, based on the weight of the agricultural water-in-oil microemulsion composition, of at least one nonionic surfactant having a combined hydrophilic-lipophilic balance of greater than 9.3, and
- oil,
- wherein, when said agricultural water-in-oil microemulsion composition is diluted by water or water-based mixtures to form a diluted product, the composition disperses without lumps or clumps in the water or water-based mixtures.
A process of dispersing a composition into an aqueous media comprising:
- a) providing an agricultural water-in oil microemulsion composition comprising up to about 15 percent by weight, based on the weight of the agricultural water-in-oil microemulsion composition, of polyacrylamide polymer or copolymer solids, up to about 20 percent by weight, based on the weight of the agricultural water-in-oil microemulsion composition, of at least one fatty acid, up to about 20 percent by weight, based on the agricultural water-in-oil microemulsion composition, of at least one nonionic surfactant having a combined hydrophilic-lipophilic balance of greater than 9.3, and oil;
- b) forcing the agricultural water-in-oil microemulsion composition into an aqueous medium to form a diluted product without lumps or clumps in the aqueous medium;
- c) allowing the micelles to burst into the aqueous medium;
- and
- d) applying the agricultural water-in-oil microemulsion composition with burst micelles to a desired or intended target.
A process according to 18 wherein said forcing the agricultural water-in-oil microemulsion composition into the aqueous medium comprises at least one operation selected from the group consisting of stirring the aqueous medium and the agricultural water-in-oil microemulsion composition, pumping the aqueous medium and the agricultural water-in-oil microemulsion composition through a pipe or stirring it in a tank, pouring the agricultural water-in-oil microemulsion composition into a tank containing the aqueous medium, and injecting the agricultural water-in-oil microemulsion composition into the tank containing the aqueous medium.
An agricultural water-in-oil microemulsion composition having a weight and comprising:
- up to about 15 percent by weight, based on the weight of the agricultural water-in-oil microemulsion composition, of polyacrylamide polymer or copolymer solids,
- up to about 20 percent by weight, based on the weight of the agricultural water-in-oil microemulsion composition, of at least one fatty acid of C8 to C30,
- up to about 20 percent by weight, based on the weight of the agricultural water-in-oil microemulsion composition, of at least one nonionic surfactant having a combined hydrophilic-lipophilic balance of greater than 9.3, and
- up to about 60 percent by weight, based on the weight of the agricultural water-in-oil microemulsion composition, of oil,
- wherein, when said agricultural water-in-oil composition is diluted by water or water-based mixtures to form a diluted product, the composition disperses without lumps or clumps in the water or water-based mixtures.
Dependencies are inferred from the claim text.