Composition for thermally stablizing o-pyridylphosphates or thiophosphates by incorporating various proportions of certain phthalate esters thereto

摘要

Novel composition and method for thermally stabilizing an O- pyridyl phosphate insecticide such as chlorpyrifos. The insecticide is mixed with a phthalate ester prior to its incorporation into a thermoplastic resin, such as polyvinyl chloride.