Particulate suspensions

Particulate suspensions

  • CN 1,744,815 A
  • Filed: 12/05/2003
  • Published: 03/08/2006
  • Est. Priority Date: 12/06/2002
  • Status: Active Application
First Claim
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1. method that improves the stability of Particulate suspension, this suspension comprise one and do not contain the water of miscible organic solvent in fact and wherein suspended and be insoluble to the agricultural chemicals solid of described aqueous phase in fact, and described method comprises(i) by making multiple polymerization of vinyl monomer generate a kind of polymer stabilizer that hydrophilic fragments and hydrophobic segment are arranged, this vinyl monomer not exclusively is vinyl acetate or its hydrolysate, wherein at least some contain functional group that cross-linking reaction can take place and(ii) make one or more substance reactions described polymer stabilizer and this aqueous phase contained (dissolving or suspension), that cross-linking reaction can take place with described functional group,Wherein, polymer stabilizer before (a) crosslinked and the agricultural chemicals of the weight ratio of the agricultural chemicals that (b) suspend less than 1 part of polymer stabilizer/5 part suspension.

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