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1.发明授权
公开(公告)号：US4369055A
公开(公告)日：1983-01-18
申请号：US299203
申请日：1981-09-03
CPC分类号： B01J2/30 , C05G3/0029
摘要： Fertilizers coated with coating layer having a controlled moisture permeability and a controlled temperature dependency of moisture permeability are presented by the production method which comprises ejecting hot drying air to the spout of granular fertilizer and spraying a hot solution of polyolefin type resin, ethylene-vinyl acetate copolymer or vinylidene type resin upon said fertilizer granules and drying said fertilizer granules upon being sprayed with solution having the property capable of forming a solution while it is hot but turning into jelly-like gel when it is cooled but as a most characteristic feature of this method uniformly dispersed fine powder is incorporated in said drying air or in said solution so as to have a coated layer of said resin containing uniformly distributed fine powder.
摘要翻译： 通过包括将热干燥空气喷射到颗粒肥料的喷口并喷射聚烯烃类树脂，乙烯 - 乙酸乙烯酯的热溶液的方法，提供了涂覆有具有受控的透湿性和受湿气透过性的受控温度依赖性的涂层的肥料 共聚物或亚乙烯基型树脂在所述肥料颗粒上干燥，并且在喷洒具有能够在热时形成溶液的性质的溶液时干燥所述肥料颗粒，当冷却时变成胶状凝胶，但是作为其最特征的特征 将均匀分散的细粉末的方法结合到所述干燥空气或所述溶液中，以具有包含均匀分布的细粉末的所述树脂的涂层。
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公开(公告)号：US4019890A
公开(公告)日：1977-04-26
申请号：US529125
申请日：1974-12-03
CPC分类号： B01J2/006 , C05G3/0035
摘要： Granular slow-releasing fertilizers completely coated with water-resisting resin are produced in such a manner that the coated granules do not stick together, through one step operation by spraying a solution of the resin which has the property capable of maintaining the solution state while it is hot but turning into jelly-like gel when it is cooled, on granules of fertilizer and drying the said granules with a high speed drying hot air on the spot upon being sprayed with the solution of the resin.
摘要翻译： 完全涂覆有耐水性树脂的颗粒缓释肥料以这样的方式制造，使得涂覆的颗粒不粘在一起，通过一步操作通过喷涂具有能够保持溶液状态的性质的树脂的溶液，同时 当它被冷却时变成果冻状凝胶，在化肥颗粒上，并在用树脂溶液喷涂之后，用高速干燥的热空气在所述颗粒上干燥所述颗粒。
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