Patent ID: 6274156
Filing Date: 2001-08-14
Classification: A01N

Abstract:
A solid concentrated agrochemical composition comprising a homogeneous mixture of:(1) at least one concentrated composition A in the form of dispersible granules, each granule thereof containing at least one agriculturally active material and being devoid of effervescent agent, and having a cumulative pore volume of between about 0.17 and about 0.35 ml/g and an apparent density of between about 0.35 and about 0.8 g/cm.sup.3 ; and(2) a concentrated composition B in the form of dispersible granules, each granule thereof containing an effervescent agent and being devoid of active material, the effervescent agent comprising (a) an alkaline carbonate or hydrogen carbonate and (b) an acid, wherein the acid/carbonate ratio by weight is between about 0.3 and about 30, and the granules of composition B have a cumulative pore volume of between about 0.020 and 0.13 ml/g and an apparent density of between about 0.8 and about 1.5 g/cm.sup.3 ;the A/B quantitative ratio is between about 0.05 and about 10; andthe granules of compositions A and B have a median diameter of between about 0.150 and about 10 mm, and a minimum size greater than about 0.05 mm, the ratio of the median diameter of the granules of composition A to the median diameter of the granules of composition B is less than or equal to about 5, and wherein said agrochemical composition having said pore volume has improved water dispersion characteristics.