Sulfonylurea herbicide-containing substrates and methods of making the same

Patent metadata

Field	Value
Publication number	US-2016302407-A1
Application number	US-201415103208-A
Country	US
Kind code	A1
Filing date	Dec 9, 2014
Priority date	Dec 9, 2013
Publication date	Oct 20, 2016
Grant date	—

Abstract

Compositions comprising a substrate coated with a sulfonylurea herbicide, and methods for making and using such compositions, are generally described herein.

First claim

1 . A composition comprising a substrate, a sulfonylurea herbicide and a carrier.

2 . The composition of claim 1 , wherein the carrier comprises polybutene, white mineral oil, mineral seal oil, hexylene glycol, or combinations thereof.

3 . The composition of claim 1 or 2 , wherein the carrier comprises 0.01-10.00% by weight of the composition.

4 . The composition of any of claims 1 - 3 , wherein the substrate comprises a stabilizing compound.

5 . The composition of claim 4 , wherein the stabilizing compound comprises cellulose fiber.

6 . The composition of claim 5 , wherein the cellulose fiber comprises BIODAC®.

7 . The composition of any of the above claims, wherein the substrate comprises a fertilizer.

8 . The composition of claim 7 , wherein the fertilizer is methylene urea, coated urea, uncoated urea, or combinations thereof.

9 . The composition of any of claims 1 - 8 , wherein the sulfonylurea herbicide comprises metsulfuron-methyl.

10 . The composition of any of claims 1 - 9 , wherein the composition has less than 10% degradation of metsulfuron-methyl over a period of 9 months.

11 . The composition of any of claims 1 - 9 , wherein the composition has less than 10% degradation when stored at a temperature of 50° C. or less for one month.

12 . The composition of any of claims 1 - 9 , wherein the composition has less than 10% degradation when stored at a temperature of 40° C. or less for two months.

13 . The composition of any of claims 1 - 9 , wherein the composition has less than 10% degradation when stored at a temperature of 35° C. or less for three months.

14 . The composition of any of claims 1 - 9 , wherein the composition has less than 10% degradation when stored at room temperature or less for 24 months.

15 . The composition of any of claims 1 - 14 , wherein the composition has a pH range of 7.0-10.0.

16 . The composition of any of claims 1 - 15 , further comprising a water-absorbent component.

17 . The composition of claim 16 , wherein the water-absorbent component is magnesium sulfate, clay, specialty silica, precipitate silica, calcium silicate, calcium sulfate, or combinations thereof.

18 . The composition of claim 17 , wherein the specialty silica comprises SIPERNAT D-17®.

19 . The composition of claim 17 , wherein the precipitate silica comprises HISIL®.

20 . The composition of claims 16 - 19 , wherein the water-absorbent component comprises 0.01-10.0% by weight of the compound.

21 . The composition of any of claims 1 - 20 , wherein the composition has a moisture level of 0-2%.

22 . The composition of any of claims 1 - 21 , wherein the substrate is coated with the sulfonylurea herbicide and the carrier.

23 . The composition of claim 7 , wherein the fertilizer is coated with the sulfonylurea herbicide and the carrier.

24 . The composition of claim 23 , wherein the substrate further comprises a stabilizing compound.

25 . The composition of claim 24 , wherein the stabilizing compound is uncoated by the sulfonylurea herbicide and the carrier.

26 . A container or bag comprising the composition of any one of claims 1 - 25 .

27 . A method of making an herbicidal composition comprising suspending a sulfonylurea herbicide in a carrier to obtain a liquid suspension and spraying the liquid suspension onto a substrate, wherein the carrier is a solvent.

28 . The method of claim 27 , wherein the substrate comprises a stabilizing compound.

29 . The method of claim 28 , wherein the stabilizing compound comprises a cellulose fiber.

30 . The method of claim 29 , wherein the cellulose fiber comprises BIODAC®.

31 . The method of any of claims 27 - 30 , wherein the substrate further comprises a granular fertilizer.

32 . The method of claim 31 , wherein the granular fertilizer comprises methylene urea, coated urea, uncoated urea, or combinations thereof.

33 . The method of any of claims 27 - 32 , wherein the sulfonylurea herbicide is metsulfuron-methyl.

34 . The method of any of claims 27 - 33 , wherein the solvent comprises polybutene, white mineral oil, mineral seal oil, hexylene glycol, or combinations thereof.

35 . The method of any of claims 27 - 34 , wherein the carrier comprises 0.01-10.00% by weight of the composition.

36 . The method of any of claims 27 - 35 , further comprising adding a water-absorbent compound after spraying the liquid suspension onto the substrate or adding a water-absorbent compound before spraying the liquid suspension onto the substrate.

37 . The method of claim 36 , wherein the water-absorbent compound comprises magnesium sulfate, clay, specialty silica, precipitate silica, calcium silicate, calcium sulfate, or combinations thereof.

38 . The method of claim 36 or 37 , wherein the water-absorbent compound comprises 0.01-10.0% by weight of the compound.

39 . The method of any of claims 27 - 38 , wherein the substrate is dried to a moisture content of less than 2%.

40 . The method of any of claims 27 - 39 , wherein the herbicidal composition has a moisture level of 0-2%.

41 . The method of any of claims 27 - 40 , wherein the substrate has a pH of 7.0-10.0.

42 . The method of any of claims 27 - 41 , wherein the sulfonylurea herbicide suspended in a carrier is distributed substantially equally onto the substrate.

43 . A composition comprising a substrate comprising a stabilizing compound, wherein the substrate is coated with a sulfonylurea herbicide and a hydrophobic solvent, prepared by a process comprising the steps of:
(a) suspending the sulfonylurea herbicide in a hydrophobic solvent; and (b) spraying the compound of (a) onto the substrate.

44 . The composition prepared by the process of claim 43 , the process further comprising the step of adding a water-absorbent compound after the compound of (a) has been sprayed onto the substrate.

45 . The composition prepared by the process of claim 43 , the process further comprising the step of adding a water-absorbent compound to the substrate before the compound of (a) has been sprayed onto the substrate.

46 . A composition comprising a substrate comprising a fertilizer, wherein the substrate is coated with a sulfonylurea herbicide and a hydrophobic solvent, prepared by a process comprising the steps of:
(a) suspending the sulfonylurea herbicide in a hydrophobic solvent; and (b) spraying the compound of (a) onto the substrate.

47 . The composition prepared by the process of claim 46 , the process further comprising the step of adding a water-absorbent compound after the compound of (a) has been sprayed onto the substrate.

48 . The composition prepared by the process of claim 46 , the process further comprising the step of adding a water-absorbent compound to the substrate before the compound of (a) has been sprayed onto the substrate.

49 . A composition comprising a substrate comprising a fertilizer and a stabilizing compound, wherein the substrate is coated with a sulfonylurea herbicid

Assignees

• Oms Invest Inc

Inventors

• Mwonya Patrick
• Bertin Marcus
• Radabaugh Robert M A
• Newton Johnathon Clark Raistlin

Classifications

• C05G3/60

  Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants · CPC title

• C05C9/005

  Post-treatment · CPC title

• A01N25/22 Primary

  containing ingredients stabilising the active ingredients · CPC title

• A01N47/36

  containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof · CPC title