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US 6,638,994 B2Granted
Aqueous suspension of nanoparticles comprising an agrochemical active ingredient
OwnerRegan Crooks, Mathieu Joanicot +2inventors
InventorsRegan Crooks, Mathieu Joanicot, Robert K. Prud'Homme, Joel Coret
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Abstract
The invention relates to an aqueous suspension of particles, said particles comprising an organic active ingredient. A controlled release of the ingredient occurs. The invention is especially suitable for the controlled release of organic agrochemical active ingredients useful in crop sciences, such as pesticides.
Claims24
An aqueous suspension of nanoparticles, said nanoparticles having a solid core comprising:
- an amphiphilic compound comprising at least one hydrophilic moiety and at least one hydrophobic moiety, and
- at least 50 parts by weight of an organic water-insoluble agrochemical active ingredient for 100 parts of the amphiphilic compound,
- wherein more than 50% of the nanoparticles have a diameter of lower than 1060 nm.
Dependencies are inferred from the claim text.