Solid agricultural adjuvants

Details Solid agricultural adjuvants Solid agricultural adjuvants

A - Human Necessities

01

N

A01N 25/30 (2006.01) A01N 25/14 (2006.01) A01N 25/24 (2006.01) A01N 57/20 (2006.01) C05C 9/00 (2006.01) C05G 3/00 (2006.01) C05G 3/02 (2006.01) C05G 3/06 (2006.01)

Patent

CA 2093377

SOLID AGRICULTURAL ADJUVANTS Abstract of the Disclosure Solid free-flowing adjuvants for use with agricultural chemicals, such as pesticides, are formed by physically combining urea with at least one surfactant selected from ethoxylated aliphatic alcohols or acids having at least 10 moles of ethylene oxide per mole of acid or alcohol and 8 to 24 carbon atoms in the acid or alcohol chain; block or random co-polymers of ethylene oxide and propylene oxide; and block or random copolymers of ethylene oxide and propylene oxide based on aliphatic alcohols having 4 to 18 carbon atoms. These adducts may also include other fertilizers, such as diammonium phosphate; acidifying agents, such as anionic phosphate esters of the formula ROP(O)(O)2 wherein R is alkyl, alkyaryl, alkoxylated alkyl, or alkoxylated alkylaryl; and/or sticking agents, such as fatty acids or alkoxylated novolac resins. The adducts are formed by mixing and heating the components to a uniform liquid melt and then cooling the adduct into a solid free-flowing powder. The adjuvants may be built-in or tank mixed of dry blended with pesticide formulations. They function as activator adjuvants compatibilizers, buffers, dispersants, wetting and/or sticking agents.

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