Lignosulfonate-based dispersant and its use in solid...

Details Lignosulfonate-based dispersant and its use in solid... Lignosulfonate-based dispersant and its use in solid...

B - Operations, Transporting

01

F

B01F 17/50 (2006.01) A01N 25/14 (2006.01) B01F 17/00 (2006.01)

Patent

CA 2241240

Dispersant for solid phytosanitary formulations comprising: (a) at least one alkaline-earth metal lignosulphonate or ammonium lignosulfonate [component (a)], associated to (b) at least one ethoxylated or optionally etho-propoxylated, sulfated, partially or totally neutralised di- or tri-(phenyl-1 ethyl)phenol [component (b)], the weight ratio component (a)/component (b) being at the most 95/5, with the exception of a dispersant comprising calcium lignosulfonate and Soprophor? DSS-7N in a weight ratio of 90/10. It can be prepared by spraying an aqueous solution containing both components. It may be used for the preparation of solid phytosanitary formulations.

Agent dispersant pour formulations solides phytosanitaires consistant en: (a) au moins un lignosulfonate de métal alcalin, alcalino-terreux ou d'ammonium [constituant (a)], associé à (b) au moins un di- ou tri-(phényl-1 éthyl)phénol, éthoxylé ou éventuellement étho-propoxylé, sulfaté, partiellement ou totalement neutralisé [constituant (b)], le rapport pondéral constituant (a)/constituant (b) étant d'au plus 95/5, à l'exception d'un agent dispersant comprenant du lignosulfonate de calcium et du Soprophor DSS-7N dans un rapport pondéral de 90/10. Il est susceptible d'être préparé par atomisation d'une solution aqueuse renfermant les deux constituants. Il peut être utilisé pour la préparation de formulations phytosanitaires solides.

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