发明名称 |
MICROENCAPSULATED COMPOSITIONS |
摘要 |
Polyurea microcapsules particularly suitable for foliar application are prepared by an interfacial polymerization process in which the polyurea is formed from an aromatic diisocyanate and optionally an aromatic polyisocyanate having 3 or more isocyanate groups, in a weight ratio (when both types of isocyanate are present) of polyisocyanate:diisocyanate of from about 1:100 to about 1:15, and in which the microcapsules are produced having an average particle size of from about 1 t o about 5 microns. As compared to conventional liquid (e.g., emulsifiable concentrate) compositions of pesticides, the microcapsules can provide safer handling and higher loading of active ingredients, while providing substantially equivalent biological activity to the liquid compositions.
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申请公布号 |
CA2255852(C) |
申请公布日期 |
2005.12.20 |
申请号 |
CA19972255852 |
申请日期 |
1997.05.19 |
申请人 |
ZENECA LIMITED |
发明人 |
LEE, KUO-SHIN;RODSON, MARIUS;CHEN, JIN LING;SCHER, HERBERT BENSON |
分类号 |
B01J13/16;A01N25/28;A01N43/40;A01N47/40;A01N53/00;A01N53/08;A01N53/14;A01N61/00;(IPC1-7):B01J13/16 |
主分类号 |
B01J13/16 |
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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