Masking agent for agrichemicals
AssigneeMasking Agent for Agrichemicals
InventorJesse H. Gaytan
Life of this patent
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Abstract
Objectionable odors from agrichemicals can be masked by adding one or more terpene or their oxygenated derivatives to the formulation before, during, or after application. A particularly preferred formulation is a granulated insecticide that includes an insecticidal amount of a phosphoroamido(di)thioate in solid form, a polymeric binder, a small amount of an anticking aid, and a masking agent containing an essential oil that is either mixed throughout the granule or sprayed onto its surface. The essential oil masks objectionable odors from the active ingredient without adversely affecting the storage stability or efficacy of the active ingredient.
Claims34
An agrichemically effective formulation comprising:
- a. an agrichemically effective active ingredient in an agrichemically effective amount, wherein said active ingredient may emit odors that are generally objectionable to human perception,
- b. 0-90 wt % of an aromatic solvent for said active ingredient, and
- c. a masking agent comprising a terpene or oxygenated derivative thereof in an amount sufficient to reduce human perception of objectionable odors from said formulation.
An insecticidally effective formulation comprising:
- a. phosphoroamido(di)thioate solids in an insecticidally effective amount, wherein said solids emit odors that may be objectionable to human perception,
- b. a masking agent comprising a terpene or oxygenated derivative thereof in an amount sufficient to reduce human perception of objectionable odors from said formulation.
A process for making granules containing insecticidally effective phosphoroamido(di)thioate, said process comprising the steps:
- extruding at ambient temperatures an extrusion mixture comprising phosphoroamido(di)thioate solids, a binder, and less than 5 wt % water to form homogeneous extrudates,
- drying said extrudates to a moisture content of less than 1 wt %, and spraying an anhydrous masking agent onto the dried extrudates.
An insecticidally active composition comprising:
- phosphoroamido(di)thioate solids,
- a water soluble polymeric binder,
- an optional anticaking agent,
- less than 5 wt % water, and
- a masking agent in an amount effective to mask human perception of objectionable odors from said phosphoroamido(di)thioate solids.
Dependencies are inferred from the claim text.