Agricultural fluid deposition aid
AssigneeMomentive Performance Materials Inc.
InventorsFengqi HE, William BROWN, George POLICELLO, Jeferson NAUE, Long YONG, Zhengya CAO
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Abstract
A deposition aid is provided, comprising a low molecular weight, low viscosity polysiloxane, combined with a crop oil concentrate or esterified seed oil concentrate. Combinations including the modified silicone can improve spreading and/or adhesion to foliage. Adding about 5%to about 20%of the modified silicone can provide more than a proportional increase in spreading and/or adhesion.
Claims29
An organosilicone-based agricultural composition, comprising a combination of (a) an optional oil component, (b) a surfactant, and (c) a polysiloxane having an average molecular weight of about 4,000 g/mole or lower and a viscosity of about 50 cSt or lower at 25° C.,
- wherein the polysiloxane is soluble or dispersible in the oil component, when the optional oil component is present, and has the general formula (I):
- M
- 1
- D
- x
- D
- 1
- y
- M
- 2
- wherein:
- M1=R1R2R3SiO½
- M2=R4R5R6SiO½
- D=R7R8SiO2/2
- D1=R9R10SiO2/2
- R1 and R4 are independently selected from Hydroxyl (OH), R8, or OR8;
- R2, R3, R5 and R6 are independently selected from a monovalent alkyl hydrocarbon radical of 1 to 18 carbons, and aryl or alkaryl hydrocarbon radicals of 6 to 14 carbon atoms;
- R7 is selected from hydroxyl (OH), OR8, a monovalent hydrocarbon radical of 1 to 4 carbon atoms, -OSi(R8)3, or -(OSiR8 R8)f OSi(R8)2OZ, where Z is H or R8 and subscript f is 0 to 8;
- R8 is a monovalent hydrocarbon radical of 1 to 4 carbon atoms;
- R9 and R10 are independently selected from a monovalent hydrocarbon radical of 1 to 18 carbons, and aryl or alkaryl hydrocarbon radicals of 6 to 14 carbon atoms;
- and
- subscripts x and y are independently 0 to 50, with the proviso that x+y is about 1 to 50.
A method of increasing the spreading or adhesion properties of an agricultural composition containing (a) an oil component and (b) a surfactant, comprising adding to the formulation, an amount of thepolysiloxane or organo-modified polysiloxane of Formula (I), having a molecular weight below about 4,000 g/mol, effective to cause the combination to exhibit 10% improved adhesion or spreading when compared to the same formulation, but in the absence of the polysiloxane or organomodified polysiloxane.
Dependencies are inferred from the claim text.