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1.发明授权
公开(公告)号：US5516520A
公开(公告)日：1996-05-14
申请号：US253592
申请日：1994-06-03
CPC分类号： A01N25/10
摘要： A particulate controlled-release pesticide composition having a pesticide encapsulated in a polymer matrix of starch-borax-urea and method of preparation and use thereof is provided. The release rates and release duration of the pesticide compositions are controllable by adjusting the urea content in the compositions. The pesticide composition is preparable by admixing starch, pesticide, urea and water together to form a mixture and agitating the same at a temperature sufficient to gelatinize the mixture and to disperse the mixture. Borax is then added to the mixture in an amount effective to convert the mixture into a rubbery mass. The rubbery mass is then comminuted into small particles, in the presence of added starch, and dried.
摘要翻译： 提供一种具有包封在淀粉 - 硼砂 - 尿素的聚合物基质中的农药的颗粒控释农药组合物及其制备和使用方法。 通过调节组合物中的尿素含量可以控制农药组合物的释放速率和释放持续时间。 农药组合物可以通过将淀粉，农药，尿素和水混合在一起形成混合物并在足以将混合物糊化并分散混合物的温度下搅拌该农药组合物。 然后将硼砂以有效将混合物转化成橡胶状物质的量加入混合物中。 然后在加入淀粉的存在下将橡胶状物质粉碎成小颗粒，并干燥。
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公开(公告)号：US5427787A
公开(公告)日：1995-06-27
申请号：US153355
申请日：1993-11-15
CPC分类号： A01N63/00 , Y10S435/832
摘要： A biocidal formulation with improved resistance to ultraviolet rays comprising: (a) an appropriate biocide which is Bacillus thuringiensis; (b) an anti-ultraviolet agent selected from the group consisting of 2-(2-H-benzotriazole-2-yl)-phenol and their derivatives represented by the following formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of alkyl, aryl, and alkylaryl groups; (c) pre-gelatinized starch; and (d) natural starch, the biocide, the anti-ultraviolet agent, the pre-gelatinized starch and the natural starch are mixed then baked at 60.degree.-90.degree. C. to form the biocidal formulation.
摘要翻译： 具有改善的耐紫外线性的杀生物制剂，包括：（a）适当的杀生物剂，其为苏云金芽孢杆菌; （b）选自由下式表示的2-（2-H-苯并三唑-2-基） - 苯酚及其衍生物的抗紫外线剂：其中R1和R2独立地选自 由烷基，芳基和烷基芳基组成的基团; （c）预胶化淀粉; 和（d）天然淀粉，杀生物剂，抗紫外线剂，预胶化淀粉和天然淀粉混合，然后在60°-90℃下烘烤以形成杀生物制剂。
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3.发明授权Method for the preparation of a biocidal formulation containing starch and Bacillus thuringiensis 失效制备含有淀粉和苏云金芽孢杆菌的杀生物制剂的方法
公开(公告)号：US5352597A
公开(公告)日：1994-10-04
申请号：US153354
申请日：1993-11-15
CPC分类号： C12R1/075 , A01N25/10 , A01N63/00 , Y10S435/832
摘要： Biocidal formulations prepared by: (a) blending predetermined amounts of pre-gelatinized starch, natural starch, biocide such as Bacillus thuringiensis and water to form a mass; (b) drying said mass by heating prepared by with a hot roller at temperatures between 50.degree. and 100.degree. C., preferably between 60.degree. and 90.degree. C., to form a dried mass; and (c) crushing the dried mass to form the final product having the shape of flakes with a diameter preferably less than about 900.mu.. With the method disclosed in the present invention, the process time can be reduced from 24 hours in the prior art to no more than 30 minutes, preferably about 3 to 15 minutes. The present invention represents substantial economic benefits as well as reductions of potential health risks as a result of the reduced contact by operators with biocides during the preparation process.
摘要翻译： 通过以下方法制备的杀生物制剂：（a）将预定量的预胶化淀粉，天然淀粉，杀生物剂如苏云金芽孢杆菌和水混合以形成团块; （b）通过用热辊在50℃至100℃，优选60℃至90℃之间的温度下加热制备干燥所述物料，形成干燥物料; 和（c）粉碎干燥的物料以形成具有优选小于约900μm直径的薄片形状的最终产品。 利用本发明公开的方法，可将处理时间从现有技术的24小时减少到不超过30分钟，优选约3至15分钟。 由于在制备过程中操作者与杀生物剂的接触减少，本发明代表了巨大的经济效益以及减少潜在的健康风险。
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公开(公告)号：US5576008A
公开(公告)日：1996-11-19
申请号：US262850
申请日：1994-06-21
申请人： Chien-Chun Yang , I-Horng Pan
发明人： Chien-Chun Yang , I-Horng Pan
CPC分类号： A01N25/28 , A01N53/00 , Y10S514/963
摘要： This invention relates to a novel method for preparing pesticide microcapsules in which the release rate and the release period of the pesticide are controlled. A process has been discovered for encapsulating a trace amount of pesticide with a urea-formaldehyde resin, mechanically stirring the resin in the presence of vegetable oil and the pesticide and reacting the mixture under suitable conditions to form a desired pesticide microcapsule.
摘要翻译： 本发明涉及一种制备农药微胶囊的新方法，其中控制农药的释放速率和释放时间。 已经发现了用植物油和农药在存在下机械搅拌树脂并在合适的条件下使混合物反应形成所需的农药微胶囊的方法，用尿素 - 甲醛树脂包封痕量的农药。
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