发明名称 |
Fertilizer encapsulation using sulfur containing polyols |
摘要 |
This invention relates to fertilizer encapsulation with polyurethanes wherein the isocyanate-reactive composition contains sulfur. The process of the present invention comprises applying a polyisocyanate composition to fertilizer particles, applying an isocyanate-reactive composition which contains sulfur to the polyisocyanate coated fertilizer particles, or applying an isocyanate-reactive composition which contains sulfur to fertilizer particles and then applying a polyisocyanate composition to the isocyanate-reactive coated fertilizer particles, and repeating these steps as necessary to form sulfur containing polyurethane encapsulated fertilizer particles.
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申请公布号 |
US2003089150(A1) |
申请公布日期 |
2003.05.15 |
申请号 |
US20010976610 |
申请日期 |
2001.10.12 |
申请人 |
MARKUSCH PETER H.;CLINE ROBERT L. |
发明人 |
MARKUSCH PETER H.;CLINE ROBERT L. |
分类号 |
C05G3/00;C08G18/32;C08G18/48;(IPC1-7):C05B1/00 |
主分类号 |
C05G3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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