US 12,389,906 B2
Aqueous herbicidal concentrates
David Z. Becher, St. Louis, MO (US)
Assigned to MONSANTO TECHNOLOGY LLC, St. Louis, MO (US)
Filed by Monsanto Technology LLC, St. Louis, MO (US)
Filed on Aug. 30, 2021, as Appl. No. 17/460,402.
Application 17/460,402 is a division of application No. 14/606,137, filed on Jan. 27, 2015, granted, now 11,140,900.
Claims priority of provisional application 61/932,199, filed on Jan. 27, 2014.
Prior Publication US 2021/0386063 A1, Dec. 16, 2021
Int. Cl. A01N 41/06 (2006.01); A01N 25/04 (2006.01); A01N 25/28 (2006.01)
CPC A01N 41/06 (2013.01) [A01N 25/04 (2013.01); A01N 25/28 (2013.01)] 19 Claims
 
1. An aqueous herbicidal concentrate composition comprising:
microcapsules comprising an acetanilide herbicide comprising acetochlor, wherein the acetanilide herbicide concentration in the composition on an active ingredient basis is at least about 25 wt. %;
a water-soluble protoporphyrinogen oxidase inhibitor (PPO inhibitor) comprising fomesafen, wherein the concentration of the PPO inhibitor on an active ingredient basis is from about 5 wt. % to about 20 wt. %;
from about 900 ppm to about 1800 ppm of a pseudoplastic thickener based on the total weight of the composition, wherein the pseudoplastic thickener is selected from the group consisting of guar gum, xanthan gum, and a combination thereof;
a structure-breaking agent comprising urea, wherein the composition comprises about 2 wt. % to about 10 wt. % of the structure-breaking agent; and
a density adjusting agent comprising glycerin, wherein the composition comprises from about 5 wt. % to about 10 wt. % of the density adjusting agent, and wherein the weight ratio of total acetanilide herbicide to PPO inhibitor is from about 1:10 to 10:1.