Biodegradable sustained-release preparation
    5.
    发明授权
    Biodegradable sustained-release preparation 失效
    可生物降解的缓释制剂

    公开(公告)号:US5993843A

    公开(公告)日:1999-11-30

    申请号:US883746

    申请日:1997-06-27

    摘要: Described are a biodegradable sustained-release preparation which comprises a mixture of 99 to 10 parts by weight of an aliphatic polyester and 1 to 90 parts by weight of a modifier for the regulation of sustained releasability of an active ingredient, and the active ingredient held by said mixture; a biodegradable pheromone dispenser, wherein an aliphatic polyester is used as a sustained release layer for a pheromone contained therein as a liquid phase, said aliphatic polyester having recurring units whose ratio (I/II) of (I) the number of the carbon atoms constituting the main chain and not relating to ester linkage to (II) the number of the carbon atoms constituting the ester linkage is 2 or larger; and a biodegradable pest controlling agent which is obtained by mixing and dispersing an active ingredient and a carrier for holding said active ingredient in a biodegradable aliphatic polyester or which comprises 2 to 60 wt. % of an active ingredient, 30 to 95 wt. % of a biodegradable aliphatic polyester and 2 to 50 wt. % of a carrier for holding the active ingredient.

    摘要翻译: 描述了一种可生物降解的缓释制剂,其包含99至10重量份的脂族聚酯和1至90重量份的调节剂用于调节活性成分的持续释放性的混合物,和由 说混合物 一种可生物降解的信息素分配器,其中使用脂肪族聚酯作为其中含有的信息素作为液相的缓释层,所述脂族聚酯具有重复单元,其比率(I)与(I)构成的碳原子数 主链不与酯键连接(II)构成酯键的碳原子数为2以上; 和通过将活性成分和用于将所述活性成分保持在生物降解性脂肪族聚酯中的载体混合分散而得到的生物降解性害虫控制剂,或者含有2〜60重量% %的活性成分,30至95wt。 %的可生物降解的脂族聚酯和2至50wt。 用于保持活性成分的载体的%。