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US 2019/0307129 A1Published application
Methods to produce polymer nanoparticles and formulations of active ingredients
AssigneeVive Crop Protection Inc.
InventorsFugang Li, Hung Hoang Pham, Darren J. Anderson
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Abstract
The present invention provides a composition including a polymer nanoparticle and at least one agricultural active compound incorporated with the nanoparticle, wherein the nanoparticle are less than 100 nm in diameter, and the polymer includes a polyelectrolyte.
Claims20
A composition comprising a polymer nanoparticle and at least one agricultural active compound associated with the nanoparticle, wherein the nanoparticle are less than 100 nm in diameter, and the polymer comprises a polyelectrolyte.
A method to make polymer nanoparticles, comprising the steps of:
- (a) dissolving a polyelectrolyte into an aqueous solution under solution conditions that render it charged,
- (b) adding a species that is oppositely charged under these conditions to cause the polymer to collapse, and
- (c) crosslinking the polymer.
Dependencies are inferred from the claim text.