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    • 6. 发明申请
    • PARTICULATE SUSPENSIONS
    • 颗粒悬浮物
    • WO2004052099A2
    • 2004-06-24
    • PCT/GB2003/005291
    • 2003-12-05
    • SYNGENTA LIMITEDHEMING, Alexander, MarkSHIRLEY, Ian, MalcolmWINN, Peter, David
    • HEMING, Alexander, MarkSHIRLEY, Ian, MalcolmWINN, Peter, David
    • A01N25/00
    • A01N25/10A01N25/04A01N37/34A01N25/30A01N43/40A01N43/54A01N43/90A01N51/00
    • The stability of a particulate suspension comprising an aqueous phase containing substantially no miscible organic solvent having suspended therein an agrochemical solid substantially insoluble in said aqueous phase is enhanced by (i) forming a polymeric stabiliser having a hydrophilic moiety and a hydrophobic moiety by polymerising a plurality of vinylic monomers, not being exclusively vinylic esters or their hydrolysed products, at least some of which contain functional groups capable of undergoing cross-linking reactions and (ii) reacting said polymeric stabiliser with one or more substances contained (dissolved or suspended) in the aqueous phase capable of undergoing a cross-linking reaction with said functional groups, wherein the ratio by weight of (a) the polymeric stabiliser prior to cross-linking to (b) the suspended agrochemical is less than 1 part of polymeric stabiliser per 5 parts of suspended agrochemical.
    • (i)形成具有亲水性部分的聚合物稳定剂,所述聚合物稳定剂包含基本上不含可混溶有机溶剂的悬浮于其中的农业化学固体基本上不溶于所述水相的水相的颗粒悬浮液的稳定性, 和通过聚合多种乙烯基单体的疏水部分,不仅仅是乙烯基酯或其水解产物,其中至少一些含有能够进行交联反应的官能团,和(ii)使所述聚合物稳定剂与一种或多种物质 包含(溶解或悬浮)在能够与所述官能团进行交联反应的水相中,其中(a)交联前的聚合物稳定剂与(b)悬浮的农用化学品的重量比小于 1份聚合物稳定剂/ 5份悬浮农用化学品。