Patent ID: 6818039
Filing Date: 2004-11-16
Classification: C05G,C08F,Y10T

Abstract:
A fertilizer product comprising particles of a fertilizer in intimate contact with a substantially water soluble polymer, said polymer comprising recurring polymeric subunits each made up of at least two different moieties individually and respectively taken from the group consisting of B, and C moieties, or recurring C moieties, where moiety B is of the general formula and moiety C is of the general formula wherein each R7 is individually and respectively selected from the group consisting of H, OH, C1-C30 straight, branched chain and cyclic alkyl or aryl groups, C1-C30 straight, branched chain and cyclic alkyl or aryl formate based ester groups, Râ€²CO2 groups, ORâ€² groups and COOX groups, wherein Râ€² is selected from the group consisting of C1-C30 straight, branched chain and cyclic alkyl or aryl groups and X is selected from the group consisting of H, the alkali metals, NH4 and the C1-C4 alkyl ammonium groups, R3 and R4 are individually and respectively selected from the group consisting of H, C1-C30 straight, branched chain and cyclic alkyl or aryl groups, R5, R6, R10 and R11 are individually and respectively selected from the group consisting of H, the alkali metals, NH4 and the C1-C4 alkyl ammonium groups, Y is selected from the group consisting of Fe, Mn, Mg, Zn, Cu, Ni, Co, Mo, V and Ca, and R8 and R9 are individually and respectively selected from the group consisting of nothing (i.e., the groups are non-existent), CH2, C2H4, and C3H6, each of said moieties having or being modified to have a total of two COO groups therein, and said polymer in its polymerized form being at least partially ethylenically saturated.