A composite body for sustainedly releasing vapor of a vaporizable active substance and a method for the preparation thereof
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP0160151A2
公开(公告)日:1985-11-06
The invention provides a vapor dispenser for the emission of a vaporizable substance exhibiting an activity in the atmosphere in a trace concentration, such as an insectan sex pheromone used in pest control, at a controlled uniform rate, a large number of which can be distributed in the field with minimum labor, for example, by tying to and hanging on the twigs of tea plants in a tea garden. The inventive vapor dispenser comprises a plastic-made tubular body having a specific cross sectional area of the pore and a specific outer circumferential length filled with the vaporizable substance and a coated or uncoated metal wire bonded to the tubular body side-by-side, said metal having a Brinell hardness of 65 or smaller, to facilitate tying works and stability of the dispenser tied and hung on the twigs by virtue of the moderate deformability and shape-retainability of the wire.
本发明提供了一种可在大气中以痕量浓度释放具有活性的可汽化物质(如害虫防治中使用的昆虫性信息素)的蒸汽分配器,其释放量可控且均匀,可在田间以最少的劳动量进行大量分配,例如,将其绑在茶园中茶树的枝条上并悬挂起来。本发明的蒸汽分配器包括一个塑料制成的管状体,该管状体具有特定的孔截面积和特定的外圆周长度,管状体中填充有可蒸发物质,管状体上并排粘接有涂层或无涂层的金属丝,所述金属的布氏硬度为 65 或更小,以方便绑扎工作,并凭借金属丝的适度变形性和形状保持性,使分配器稳定地绑扎和悬挂在树枝上。