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    Granular fertilizer with a decomposable coating and process for producing the same
    1.
    发明授权
    Granular fertilizer with a decomposable coating and process for producing the same 失效
    具有可分解涂层的颗粒肥料及其生产方法

    公开(公告)号：US5176734A

    公开(公告)日：1993-01-05

    申请号：US704194

    申请日：1991-05-22

    申请人： Toshio Fujita ,  Yoshisato Yamashita ,  Shigemitsu Yoshida ,  Katsutoshi Yamahira

    发明人： Toshio Fujita ,  Yoshisato Yamashita ,  Shigemitsu Yoshida ,  Katsutoshi Yamahira

    IPC分类号： C05G3/00

    CPC分类号： C05G3/0029

    摘要： A granular fertilizer with a coating which is decomposable by soil microorganisms, preferably a coating which is decomposed and degraded both on the surface layer of the soil and in the soil, and a process for producing the granular fertilizer, which coating contains a poly 3-hydroxy-3-alkylpropionic acid as an indispensable ingredient, and if necessary, a resin or a low-molecular resin and further, if necessary, an inorganic or organic powder, and which process comprises adding an organic solvent solution of the poly 3-hydroxy-3-alkylpropionic acid, and if necessary, the resin, and if necessary the powder (dispersed in the solution) to a granular fertilizer in fluided state in the form of spray, and when added, blowing a high speed hot air stream onto the fertilizer to thereby instantaneously remove the solvent and also dry the resulting fertilizer.

    摘要翻译： 具有可由土壤微生物分解的涂层的颗粒肥料，优选在土壤表面层和土壤中分解和降解的涂层，以及该颗粒肥料的生产方法，该涂层含有聚3- 羟基-3-烷基丙酸作为不可或缺的成分，如果需要，还可以根据需要使用树脂或低分子量树脂，如果需要，还可以是无机或有机粉末，该方法包括加入聚3-羟基的有机溶剂溶液 -3-烷基丙酸，根据需要，根据需要将粉末（分散在溶液中）以流动状态喷雾形式的粒状肥料加入，并将高速热风流吹至 从而即时去除溶剂并干燥所得肥料。

    Coated granular fertilizer
    3.
    发明授权
    Coated granular fertilizer 失效
    涂层颗粒肥料

    公开(公告)号：US5147442A

    公开(公告)日：1992-09-15

    申请号：US306897

    申请日：1989-02-07

    申请人： Nobumasa Kosuge ,  Toshio Fujita ,  Yoshisato Yamashita ,  Shigemitsu Yoshida ,  Katsutoshi Yamahira ,  Sayoko Miyoshi

    发明人： Nobumasa Kosuge ,  Toshio Fujita ,  Yoshisato Yamashita ,  Shigemitsu Yoshida ,  Katsutoshi Yamahira ,  Sayoko Miyoshi

    IPC分类号： C05G3/00

    CPC分类号： C05G3/0029

    摘要： A coated or encapsulated granular fertilizer which comprises an olefin polymer and/or copolymer and a polyether polyol in a defined amount. The olefin polymer is an ethylene or propylene homopolymer and/or a copolymer of an olefin monomer and a copolymerizable monomer such as olefinic monomers, vinyl acetate and carbon monoxide. The polyether polyol is polymers of ethylene oxide, propylene oxide and mixtures thereof with or without etherification with polyhydric alcohols. By the addition of the polyether polyol, a dissolution rate of the fertilizer can be arbitrarily controlled without a sacrifice of physical properties of the coated film.

    摘要翻译： 包含或包封的颗粒肥料，其包含烯烃聚合物和/或共聚物和具有确定量的聚醚多元醇。 烯烃聚合物是乙烯或丙烯均聚物和/或烯烃单体和可共聚单体如烯属单体，乙酸乙烯酯和一氧化碳的共聚物。 聚醚多元醇是环氧乙烷，环氧丙烷及其混合物的聚合物，具有或不与多元醇醚化。 通过添加聚醚多元醇，可以任意控制肥料的溶解速率，而不牺牲涂膜的物理性能。