New Value-Added Polymeric Dispersants and Uses Thereof in Agricultural Formulations

摘要

Polymeric dispersants are dispersants of choice for formulating suspension concentrates, suspoemulsions, and solid delivery systems (WP, WDG, and Tablets). We have developed a new line of polymeric dispersants, as 25 % aqueous solution, based on partially neutralized methyl vinyl ether maleic acid half esters (ethyl/butyl) copolymers (MVE-MAHE), (with trade name EASY-SPERSE®). They were used in formulating suspension concentrates and aqueous dispersions for a host of active ingredients like herbicides, insecticides, fungicides, and other growth regulators, organic dyes, inorganic pigments, including certain water-insoluble polymers. Some of these dispersions also showed suspensibility above 80 % and rainfastness at use level concentrations. Other commonly used polymeric dispersants are: Lignosulfonates, Naphthalene sulfonate formaldehyde condensate (NSFC), Poly acrylates, and olefm maleic acid co-polymers. Their film forming properties and binding efficacy can be improved when used with pyrrolidone co-polymers.