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公开(公告)号：US5652196A
公开(公告)日：1997-07-29
申请号：US410568
申请日：1995-03-24
CPC分类号： C05G3/0029 , A01N25/26
摘要： Products for the variable controlled release of water soluble agents are disclosed. The products have a core of water soluble agent and a first and second coating. The first coating has a permeability such that the agent can be released at a controlled rate, while the second coating has a relatively low water vapor transmission rate. Variation in the coating thicknesses and coating conditions result in nutrient release profiles which can be tailored to specific plant requirements. After application of the product, release of the agent is negligible, but after a predetermined time, e.g. one month or more, substantial release of the agent from the coated product begins. The product is particularly suitable for delayed, controlled release fertilizers.
摘要翻译： 公开了用于可变控释水溶性试剂的产品。 该产品具有水溶性核心和第一和第二涂层。 第一涂层具有渗透性，使得试剂可以以受控的速率释放，而第二涂层具有相对较低的水蒸气透过率。 涂层厚度和涂层条件的变化导致营养释放曲线，可根据具体工厂要求进行定制。 在施用产品之后，试剂的释放是可以忽略的，但在预定的时间之后，例如， 一个月以上，药剂从涂层产品中大量释放开始。 该产品特别适用于延迟控释肥料。
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公开(公告)号：US5741433A
公开(公告)日：1998-04-21
申请号：US668171
申请日：1996-06-21
CPC分类号： C09K5/00 , C09K5/08 , C09K5/14 , C23F11/00 , Y10T428/2998
摘要： A controlled-release supplement coolant additive for use in diesel engine coolant systems comprising a core containing at least one supplemental coolant additive (SCA) active component and a polymeric coating material encapsulating said core. The controlled released supplement coolant additive slowly releases the SCA active components to a diesel engine coolant system, thereby delivering an effective concentration level of SCA active components over an extended period. The controlled-release supplement coolant additive maintains a minimum concentration level of active SCA components in the coolant system. Additionally, the controlled-release supplemental coolant additive prevents overdosing the coolant system with particular SCA active components such as nitrates.
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公开(公告)号：US6010639A
公开(公告)日：2000-01-04
申请号：US974360
申请日：1997-11-19
CPC分类号： C09K5/00 , C09K5/08 , C09K5/14 , C23F11/00 , Y10T428/2998
摘要： A controlled-release supplement coolant additive for use in diesel engine coolant systems comprising a core containing at least one supplemental coolant additive (SCA) active component and a polymeric coating material encapsulating said core. The controlled released supplement coolant additive slowly releases the SCA active components to a diesel engine coolant system, thereby delivering an effective concentration level of SCA active components over an extended period. The controlled-release supplement coolant additive maintains a minimum concentration level of active SCA components in the coolant system. Additionally, the controlled-release supplemental coolant additive prevents overdosing the coolant system with particular SCA active components such as nitrates.
摘要翻译： 一种用于柴油发动机冷却剂系统的控制释放补充剂冷却剂添加剂，其包含含有至少一种补充冷却剂添加剂（SCA）活性组分的核心和封装所述核心的聚合物涂层材料。 受控释放的补充剂冷却剂添加剂将SCA活性组分缓慢释放到柴油发动机冷却剂系统，从而在长时间内递送有效浓度的SCA活性组分。 控制释放补充剂冷却剂添加剂在冷却剂系统中保持活性SCA组分的最低浓度水平。 此外，控制释放补充的冷却剂添加剂防止了具有特定SCA活性组分（例如硝酸盐）的过量给冷却剂系统。
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