Novel technology to coat fertilizer and improve fertilizer efficiency and their associated methods

A composition comprising one or more biodegradable hydrophobic polymers of a molecular weight range of 50-200,000 daltons, a crosslinking agent and a Non-aqueous Organo Solvent Delivery System (NOSDS), wherein said composition is a stable dispersion ideally suited to coat man-made and/or natural fertilizer components, wherein the biodegradable, hydrophobic polymers comprise the reaction products of aldehyde(s) and nitrogen containing compounds and wherein the NOSDS is comprised of one or more aprotic solvents from the group consisting of 1) Dimethyl Sulfoxide and/or 2) dialkyl, diaryl, or alkylaryl sulfoxide(s) having the formula:

• R9S(O)xR10
• wherein R9 and R10 are each independently a C1-6 alkylene group, an aryl group, or
• 2) C1-3alkylenearyl group or R9 and R10 with the sulfur to which they are attached form a 4 to 8 membered ring wherein R9 and R10 together are a C1-6 alkylene group which optionally contains one or more atoms selected from the group consisting of O, S, Se, Te, N, and P in the ring and x is 1 or 2
• 3) one or more alkylene carbonates selected from the group consisting of ethylene carbonate, propylene carbonate and butylene carbonate, 4) one or more polyols capped with acetate or formate wherein the polyol portion selected from the group consisting of ethylene glycol, 1,3 propylene glycol, 1,2 propylene glycol, butylene glycol, trimethylol propane, trimethylol ethane, pentaerythritol, sorbitol and sorbitan, glucose, fructose, galactose and glycerin, 5) one or more alkylene glycol alkyl ethers acetates selected from the group consisting of dipropylene glycol methyl ether acetate, tripropylene glycol methyl ether acetate, and/or tripropylene glycol butyl ether acetate and, 6) isophorone, 7) one or more diesters consisting of dimethylsuccinate, dimethyl adipate, diethyl glutarate, and dimethyl glutarate, 8) dimethylacetamide, 9) dimethylformamide, 10) dimethyl-2-imidazolidinone, 11) 1-Methyl-2-pyrrolidone, 12) hexamethylphosphoramide, 13) 1,2-dimethyloxyethane, 14) 2-methoxyethyl ether, 15)cyclohexylpyrrolidone and 16) limonene.
• a) wherein the aldehyde(s) is comprised of one or more of the group from of the structure:
• (1)
• where Q is:
• O, S
• where R11 is:
• —H, alkyl radical —C1H3 to —C6H13, —CH═CH2, —C4H3O, —C7H7, —C6H5, —C6H11, CHO, C2H3O, C3H5O, C4H7O, C7H5O or —R12O2R13,
• where R12 is:
• —C, —C2H2, —C3H4, —C4H6, —C5H8, —C6H10
• where R13 is:
• —H, CH3, C2H3, C3H7, C4H9
• b) wherein the nitrogen containing compound comprise one or more of the group consisting of the structures:
• (1)
• where A is:
• O, S
• where R14 is:
• —H, alkyl radical —C1H3 to —C6H13, —C6H5, —CONH2, —(CONH)a NH2
• where a is an integer:
• 1-10
• where R15 is:
• —H, alkyl radical —C1H3 to —C6H13, —C6H5, —CONH2, —(CONH)b NH2
• where b is an integer:
• 1-10
• where R16 is:
• —H, alkyl radical —C1H3 to —C6H13, —C6H5, —CONH2, —(CONH)b NH2
• where c is an integer:
• 1-10
• where R17 is:
• —H, alkyl radical —C1H3 to —C6H13, —C6H5, —CONH2, —(CONH)d NH2
• where d is an integer:
• 1-10, (2)
• and their tautomeric forms, (3)
• where X1 is:
• —NHR18, —H, —OH, —C6H5, _—N(CH3)2, —CH3
• where R18 is:
• H, an alkyl radical —CH3 to —C12H25, —C2H4OC2H4OH, C2H4OC2H4NH2, C3H6—N(CH3)2, C2H4OH, —C6H5
• where X2 is:
• —NHR19, —H, —OH, —C6H5, _—N(CH3)2, —CH3
• where R19 is:
• H, an alkyl radical —CH3 to —C12H25, —C2H4OC2H4OH, C2H4OC2H4NH2, —C3H6—N(CH3)2, C2H4OH, —C6H5
• where X3 is:
• —NHR20, —H, —OH, —C6H5, _—N(CH3)2, —CH3
• where R20 is:
• H, an alkyl radical —CH3 to —C12H25, —C2H4OC2H4OH, C2H4OC2H4NH2, —C3H6—N(CH3)2, C2H4OH, —C6H5
• and
• (4) NH2CO—R21
• where R21 is an alkyl radical CH3 to —C17H35
• c) wherein a crosslinking agent is comprised of one or more of the structures: