A pesticidal composition comprising: about 2.0% to 30.0%, by weight, of a pesticide, the technical grade of said pesticide having an acute dermal LD50 value, measured on rats or rabbits, of less than 50 mg/kg; about 5.0% to 20.0%, by weight, of a polyvinyl chloride or polyvinyl chloride/vinyl ester copolymer or homopolymer having a weight average molecular weight of about 200,000 to 400,000 and an inherent viscosity, as determined by ASTMD 1243, of about 1.00 to 1.32; about 5.0% to 15.0%, by weight, of a secondary plasticizing agent; about 0.3% to 2.0%, by weight, of a heat stabilizing agent for said resin; about 0.5% to 2.0%, by weight, of a surface active agent; about 40.0% to 80.0%, by weight, of a solid sorptive carrier; about 0.0% to 2.0%, by weight, of a drying agent and lubricant; and about 0.0% to 6.0%, by weight, of a deactivator; wherein said pesticidal composition is a solid sorptive granular pesticidal resin composition.
The compositions are characterized by markendly reduced mammalian toxicity in comparison to the technical grade pesticide.
一种
杀虫剂组合物,按重量计,包括:约 2.0%至 30.0%的
杀虫剂,所述
杀虫剂的技术等级在大鼠或兔子身上测得的急性经皮半数致死剂量小于 50 毫克/千克;约 5.0%至 20.0%的聚
氯乙烯或聚
氯乙烯/
乙烯基酯共聚物或均聚物,按重量计,所述聚
氯乙烯或聚
氯乙烯/
乙烯基酯共聚物或均聚物的重量平均分子量约为 200,000 至 400,000 且固有分子量小于 50 毫克/千克。以重量计,约 5.0%至 20.0%的聚
氯乙烯或聚
氯乙烯/
乙烯基酯共聚物或均聚物,其重量平均分子量约为 200,000 至 400,000 且按 ASTMD 1243 测定的固有粘度约为 1.00 至 1.32以重量计,约 5.0% 至 15.0% 的二次
增塑剂;以重量计,约 0.3% 至 2.0% 的用于所述
树脂的热稳定剂;以重量计,约 0.5% 至 2.0% 的表面活性剂;以重量计,约 40.0% 至 80.0%(重量)的固体吸附载体;约0.0%至2.0%(重量)的干燥剂和润滑剂;以及约0.0%至6.0%(重量)的失活剂;其中所述
杀虫剂组合物是固体吸附颗粒
杀虫剂树脂组合物。
与工业级
杀虫剂相比,这些组合物的特点是明显降低了哺乳动物的毒性。