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.
申请公布号
WO2004052099(A3)
申请公布日期
2004.09.16
申请号
WO2003GB05291
申请日期
2003.12.05
申请人
SYNGENTA LIMITED;HEMING, ALEXANDER, MARK;SHIRLEY, IAN, MALCOLM;WINN, PETER, DAVID
发明人
HEMING, ALEXANDER, MARK;SHIRLEY, IAN, MALCOLM;WINN, PETER, DAVID