Stabilized insecticide formulations
AssigneeThe Dow Chemical Company
InventorRoger F. Monroe
Life of this patent
Estimating the term…
Abstract
Insecticide formulations containing an organophosphorus insecticide on clay carriers are stabilized by incorporating from about 0.5 to about 10 weight percent of a lactone in said formulation.
Claims10
In a solid stabilized insecticidal composition mixture which comprises from about 2 to about 40 percent by weight of an organophosphorous insecticide, a solid granular clay carrier therefor, which carrier causes deterioration of said organophosphorous insecticide mixed therewith, and a stabilizing amount of a stabilizer for said mixture, the improvement in said composition which comprises using as the stabilizer, from about 0.5 to about 10% by weight of the ultimate composition of a lactone selected from the group consisting of butyrolactone, .delta.-valerolactone, .gamma.-valerolactone, .gamma.-octanoiclactone, .epsilon.-caprolactone and 2-acetyl-.gamma.-butyrolactone.
The stabilized insecticidal composition as defined inclaim 4 wherein the lactone stabilizer is .delta.-valerolactone.
Dependencies are inferred from the claim text.