Ostwald ripening inhibition in chemical formulations

Details Ostwald ripening inhibition in chemical formulations Ostwald ripening inhibition in chemical formulations

A - Human Necessities

01

N

A01N 39/02 (2006.01) A01N 25/22 (2006.01) A01N 25/30 (2006.01) A01P 13/00 (2006.01) B01F 17/52 (2006.01)

Patent

CA 2663225

A formulation having a slightly water soluble ingredient and method for preparing the same are disclosed. The millbase formulation comprises a slightly water soluble ingredient and a dispersant comprising a water soluble or water dispersible, derivative of an alternating copolymer or a salt thereof. The alternating copolymer comprises a residue of a first comonomer and a residue of a second comonomer. In addition, the first comonomer comprises an .alpha.,.beta.-unsaturated oxyacid, or an anhydride or other derivative thereof. Moreover, the second comonomer comprises an olefinic compound containing one or more polymerizable double bonds, or a derivative thereof. Such formulations may be used to inhibit Ostwald ripening in agricultural as well as non-agricultural applications.

La présente invention concerne une formulation ayant un ingrédient légèrement hydrosoluble et son procédé de préparation. La formulation de pâte-mère comprend un ingrédient légèrement hydrosoluble et un dispersant comprenant un dérivé hydrosoluble ou dispersible dans l'eau d'un autre copolymère ou d'un sel de celui-ci. L'autre copolymère comprend un résidu d'un premier comonomère et un résidu d'un second comonomère. En outre, le premier comonomère comprend un oxyacide .alpha.,.beta.-insaturé ou un anhydride ou tout autre dérivé de ceux-ci. De plus, le second comonomère comprend un composé oléfinique contenant une ou plusieurs liaisons doubles polymérisables ou un dérivé de ceux-ci. De telles formulations peuvent être utilisées pour inhiber la maturation d'Ostwald dans des applications agricoles aussi bien que non-agricoles.

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