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    • 2. 发明授权
    • Insecticidal evaporator having a diffusion layer of olefin polymerizate
    • 具有烯烃聚合物扩散层的杀虫蒸发器
    • US3961040A
    • 1976-06-01
    • US450935
    • 1974-03-13
    • Bernard RabussierJean-Pierre Mandon
    • Bernard RabussierJean-Pierre Mandon
    • A01N25/18A01N57/12A01N17/00A01N9/36
    • A01N25/18
    • An insecticidal evaporator is described which comprisesI a liquid composition containingA. 40 to 90% by weight approximately calculated on the total weight of the composition of a volatile insecticidal ester of phosphoric acid the vapor pressure of which is at least 10.sup..sup.-3 Torr at 20.degree.C;b. at least one first additional organic liquid compound having a vapor pressure less than or equal to that of the volatile insecticidal ester;C. at least a second additional organic compound miscible or soluble in the mixture of the volatile insecticidal ester and of the first additional compound;Ii. a fibrous mass absorbent for the said composition I, and impregnated by the same; andIii a diffusion layer covering at least a part of the surface of the said fibrous mass, the remainder of the surface of the fibrous mass being covered by an envelope impermeable to the said composition.
    • 描述了一种杀虫蒸发器,其包含一种含有A.40至90%的液体组合物,按重量计算,其总重量为挥发性磷酸酯的挥发性杀虫剂组合物的总重量,其最低为10-3的蒸气压 乇在20℃; b。 至少一种具有小于或等于挥发性杀虫剂的蒸气压的第一附加有机液体化合物; C.在挥发性杀虫剂和第一种附加化合物的混合物中,至少是第二种有机化合物不可或容易的; 二, 用于所述组合物I的纤维状吸收剂,并由其浸渍; 和III是覆盖所述纤维块的表面的至少一部分的扩散层,所述纤维团的表面的其余部分被不能透过所述组合物的外壳覆盖。