Back to results
US 4,289,525 AGranted
Solid compositions of a pyrazolium salt, urea and a liquid surfactant
AssigneeAmerican Cyanamid Company
InventorsNunzio R. Pasarela, Choong-Gook Jang
Life of this patent
Estimating the term…
Abstract
There are provided solid herbicidal compositions comprising a molecular solution of a liquid, non-ionic surfactant, a 1,2-dimethyl-3,5-diphenylpyrazolium salt and urea in one another. There is also provided a method for preparing said compositions which comprises the steps of melting together the components of the composition at elevated temperatures and then cooling said melt.
Claims6
A solid, particulated herbicidal composition, comprising:
- a ternary molecular solution of from 10% to 30% by weight of octylphenoxy polyethoxy ethanol, 33% to 66% by weight of 1,2-dimethyl-3,5-diphenylpyrazolium salt and urea in amounts sufficient to adjust the weight of said composition to 100%;
- and wherein the above articulated herbicidal composition may optionally coated with a fumed synthetic silica or precipitated silica having a particle-size range of 0.015 micron to 2 microns and used in amounts of 1% to 5% by weight of said composition to be coated.
Dependencies are inferred from the claim text.