Controlled-release pesticidal composition and method of making
    1.
    发明授权
    Controlled-release pesticidal composition and method of making 有权
    控制释放农药组合物及其制备方法

    公开(公告)号:US06682751B1

    公开(公告)日:2004-01-27

    申请号:US09949909

    申请日:2001-09-12

    CPC classification number: A01N25/26 A01N25/12 A01N57/28 A01N2300/00

    Abstract: A granular controlled-release pesticide comprising “core” granules such as ammonium sulfate, an inner polymer membrane formed in situ on said granules of ammonium sulfate, an acephate pesticide applied to the inner polymer membrane on the core granules, and an outer controlled-release polyurethane membrane formed in situ on said pesticide to permit controlled release of the pesticide.

    Abstract translation: 一种颗粒状控释农药,其包含“核心”颗粒,例如硫酸铵,在所述硫酸铵颗粒上原位形成的内聚合物膜,施用于芯颗粒上的内聚合物膜的乙酰乙酸杀虫剂,以及外控制释放 在所述农药上原位形成聚氨酯膜以允许控制释放农药。

    Polymer-sulfur-polymer coated fertilizers
    2.
    发明授权
    Polymer-sulfur-polymer coated fertilizers 有权
    聚合物 - 硫 - 聚合物涂层肥料

    公开(公告)号:US06338746B1

    公开(公告)日:2002-01-15

    申请号:US09359036

    申请日:1999-07-23

    CPC classification number: C05G3/0029 C05C9/005 C05G3/0023

    Abstract: The present invention described a polymer coated fertilizer, such as urea, subsequently coated with a layer of sulfur and thereafter a further coating of polymer. Preferably, the polymer coatings are formed by the direct in situ co-polymerization of the components of the polymer on the fertilizer and on the sulfur coating. The compositions provide positive controlled release characteristics, are abrasion and impact resistant and are substantially more economical to produce than polymer coated fertilizers.

    Abstract translation: 本发明描述了一种聚合物涂覆的肥料,例如尿素,随后涂覆有一层硫,此后再进一步涂覆聚合物。 优选地,聚合物涂层通过在肥料上和硫涂层上直接原位共聚聚合物形成聚合物涂层。 组合物提供正的控制释放特征,耐磨性和耐冲击性,并且与聚合物包覆的肥料相比,其生产比实际上更经济。

    Process for producing improved sulfur-coated urea slow release
fertilizers
    3.
    发明授权
    Process for producing improved sulfur-coated urea slow release fertilizers 失效
    生产改进的硫化脲缓释肥料的方法

    公开(公告)号:US5599374A

    公开(公告)日:1997-02-04

    申请号:US311672

    申请日:1994-09-23

    Inventor: John H. Detrick

    CPC classification number: C05C9/00

    Abstract: The present invention describes a sulfur-coated urea slow release granular fertilizer having a uniform, durable polymeric coating over the sulfur-coating. The polymer coating is formed by the direct in situ co-polymerization of diethylene glycol-triethanolamine polyol and a diisocyanate on the surface of the sulfur-coated urea granule. The polymeric coating provides improved impact resistance of the composite coated granule.

    Abstract translation: 本发明描述了在硫涂层上具有均匀耐用的聚合物涂层的硫包覆的尿素缓释颗粒肥料。 聚合物涂层通过在硫磺涂覆的尿素颗粒的表面上直接原位共聚二甘醇 - 三乙醇胺多元醇和二异氰酸酯而形成。 聚合物涂层提供复合包衣颗粒的改善的耐冲击性。

    Storage-stable melamine dispersion
    4.
    发明授权
    Storage-stable melamine dispersion 失效
    储存稳定的三聚氰胺分散体

    公开(公告)号:US5125952A

    公开(公告)日:1992-06-30

    申请号:US82235

    申请日:1987-08-06

    CPC classification number: C08K5/3477 C05C11/00 C05G3/007 Y10S71/903 Y10S71/904

    Abstract: A storage-stable dispersion providing melamine in the form of a concentrated liquid for effective use as an end product or as an ingredient for conversion into other products. The dispersion contains melamine particles finer than about 50 microns in diameter, admixed with a chemically inert suspending liquid, having a specific gravity between 0.9 and 1.3 grams per milliliter, containing between 0.03 and 0.20 percent of a chemically inert thickening agent, which interacts physically with the suspending liquid to increase viscosity to between 250 and 3000 centipoise, thereby substantially maintaining the melamine particles in a stable dispersion and preventing their settling. The dispersion composition is an effective form of melamine for accurate dispensing as an agricultural, pulp and paper, or fire-retardant ingredient. Effective thickening agents include xanthan gums, carrageenans, polyacrylamide, chemically treated cellulose, and clays. Nonionic surfactants are helpful in wetting the melamine particles with the suspending liquid. The suspending liquid may be water, aqueous solutions, hydrophilic organic polyols, and high molecular weight organic liquid polyols.

    Abstract translation: 提供以浓缩液体形式提供三聚氰胺的储存稳定分散体,用于有效地用作最终产品或用作转化成其它产品的成分。 分散体含有直径约为50微米的三聚氰胺颗粒,与化学惰性悬浮液混合,其比重为0.9-1.3克/毫升,含有0.03-0.20%的化学惰性增稠剂,其与物理上与 悬浮液将粘度增加到250-3000厘泊之间,从而基本上保持三聚氰胺颗粒稳定的分散体并防止其沉降。 分散组合物是用于农业,纸浆和纸或阻燃成分的精确分配的三聚氰胺的有效形式。 有效的增稠剂包括黄原胶,角叉菜胶,聚丙烯酰胺,化学处理的纤维素和粘土。 非离子表面活性剂有助于用悬浮液润湿三聚氰胺颗粒。 悬浮液可以是水,水溶液,亲水性有机多元醇和高分子量有机液体多元醇。

    Machine system and process for producing attrition resistant slow release fertilizers
    7.
    发明授权
    Machine system and process for producing attrition resistant slow release fertilizers 失效
    用于生产耐磨缓释肥料的机器系统和方法

    公开(公告)号:US06537611B1

    公开(公告)日:2003-03-25

    申请号:US09078477

    申请日:1998-05-14

    Abstract: A machine system and process for producing attrition resistant, controlled release fertilizer is described. In the process, a prewet solution is used to initially coat the plant nutrient to be coated followed by the separate application of the individual components used in the coating. The machine system provides an improved means for uniformly applying a single layer or multiple layers of polymer coatings to the plant nutrient.

    Abstract translation: 描述了用于生产耐磨,控释肥料的机器系统和方法。 在此过程中,使用预湿溶液来初步涂覆待涂层的植物营养物,然后单独施用涂层中使用的各个成分。 机器系统提供了将单层或多层聚合物涂层均匀施加到植物营养物上的改进方法。

    Micro-sized weed and feed particles having enhanced properties
    8.
    发明授权
    Micro-sized weed and feed particles having enhanced properties 失效
    具有增强性能的微尺寸杂草和饲料颗粒

    公开(公告)号:US06180565B2

    公开(公告)日:2001-01-30

    申请号:US08720752

    申请日:1996-10-01

    Inventor: John H. Detrick

    Abstract: Herbicide-fertilizer combination granular products are described comprising singular, or blended, basic fertilizer granular materials and impregnated with or coated thereon a herbicidal material for controlling broadleaf weeds postemergence. The weed and feed fertilizer products uniquely are characterized by the size, weight and physical property of the fertilizers and any filler particles contained in the weed and feed fertilizer blend product in that the particle size is substantially in the micro-sized range of 500 to 1500 microns; the particle weight generally is less than one-tenth that of customary regular-sized weed and feed particles; and there is a greater cohesion of the particle to the weed foliage. These micro-sized particles exhibit a significantly higher incidence of contact with and greater adhesion to the foliage of weeds thus providing superior weed control.

    Abstract translation: 描述了除草剂 - 肥料组合颗粒产品,其包括单一或混合的碱性肥料颗粒材料,并在其上浸渍或涂覆有用于防治阔叶杂草出苗后的除草材料。 杂草和饲料肥料产品的独特之处在于化肥和杂草和饲料肥料混合产品中所含的任何填料颗粒的大小,重量和物理性质,其粒度基本上在500至1500微米范围内 微米 颗粒重量通常小于常规常规杂草和饲料颗粒的十分之一; 并且颗粒与杂草叶片有更大的凝聚力。 这些微尺寸的颗粒表现出显着更高的与杂草叶片接触的发生率和更大的附着力,从而提供优良的杂草控制。

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