Manufacture and use of agricultural spray adjuvants for hard water conditions

  • US 10,104,886 B2
  • Filed: 06/02/2017
  • Issued: 10/23/2018
  • Est. Priority Date: 05/28/2003
  • Status: Active Grant
First Claim
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1. A water soluble glyphosate composition comprising:

  • (a) an aqueous glyphosate solution comprising glyphosate or a salt thereof;

    (b) a concentrated solution comprising sulfuric acid and a polyamine surfactant selected from tallow amine ethoxylate and coco amine ethoxylate combined in an agricultural spray solution;

    wherein said composition does not contain ammonium sulfate (AMS); and

    wherein said composition consists of a ratio of 1 quart to 2 gallons of (b) to 100 gallons of (a);

    and wherein said composition has a pH above the PKa2 of glyphosate, and wherein better herbicidal efficacy is provided in comparison to 5-20 pounds AMS per 100 gallons of (a).

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