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Stable herbicidal compositions comprising amine oxide and betaine

A composition and herbicide technology, applied in biocides, animal repellents, plant growth regulators, etc., can solve problems such as poor redistribution of active substances, difficulties in handling preparations, nozzle clogging, etc.

Pending Publication Date: 2022-02-25
RHODIA OPERATIONS SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These small particles can have the undesirable effect of filter clogging, nozzle clogging, creating unnecessary hazardous waste problems when disposing of the crystals, loss of activity (biological efficacy) and / or poor redistribution of active material in the field
High viscosity of the formulation is also an issue as this can lead to phase separation and / or difficulties for the user in handling the formulation

Method used

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  • Stable herbicidal compositions comprising amine oxide and betaine
  • Stable herbicidal compositions comprising amine oxide and betaine
  • Stable herbicidal compositions comprising amine oxide and betaine

Examples

Experimental program
Comparison scheme
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example

[0143] Material

[0144] - CF / AS 46HL is C from Solvay 12-14 Dimethyl betaine;

[0145] - C 8 is a C from Solvay 8 Dimethylamine Oxide;

[0146] - C 10 is a C from Solvay 10 Dimethylamine Oxide;

[0147] - CF / K is C from Solvay 12 -C 14 Dimethylamine Oxide;

[0148] Contains MMA / K / NH 4 The glyphosate formulation of salt was prepared by utilizing the following steps:

[0149] a) Contains MMA / K / NH 4 Salt glyphosate salt mixtures are prepared by first making MMA / KOH / NH in a molar ratio of 70 / 25 / 5 or 60 / 35 / 5 3 alkali.

[0150] b) Add the base mixture to the vessel.

[0151] c) With continuous stirring, slowly charge the glyphosate acid into the reaction vessel and if the temperature reaches 40°C, cool the mixture.

[0152] d) Check the pH (7% w / w) solution to confirm neutralization is complete, if not, add additional base mixture.

[0153] e) Add surfactant and mix.

[0154] f) Add water remaining minus any additional addition for pH adjustment.

[0155] ...

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Abstract

Provided is a herbicidal composition comprising high load aminophosphate or aminophosphonate salts, in particular high load glyphosate salts, wherein the composition comprises a surfactant mixture of at least an C8-C10 amine oxide and a betaine surfactant. The composition has good low temperature stability (i.e., no crystal formation or phase separation) among other beneficial properties.

Description

[0001] This application claims priority from an international procedure filed under Nr CN2019 / 095673 on July 12, 2019, the entire content of which application is hereby incorporated by reference for all purposes. technical field [0002] The present invention relates to stable agricultural herbicide compositions comprising amine oxides and betaines. Background technique [0003] Herbicidally active glyphosate compositions are known and commercially available in the form of ammonium, isopropylamine and other salts. These herbicidal compositions are typically applied to weeds and unwanted vegetation in aqueous formulations containing various adjuvants including, for example, wetting agents, surfactants, dispersants, antifoaming agents, humectants, and the like. The activity of glyphosate compositions can be significantly enhanced by careful selection of additives. [0004] Typically, it is desirable to have higher glyphosate concentrations because end users (e.g. farmers) can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/20A01N25/30
CPCA01N57/20A01N25/30A01N25/02
Inventor 陈资衔周裕明P·L·奥布莱恩R·蒙泰罗索
Owner RHODIA OPERATIONS SAS