# US 2024/0188560 A1 · Stable emulsions

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- Number: US 2024/0188560 A1
- Document ID: US20240188560A1
- Status: Published application
- Kind: A1
- Application number: 18/553,409
- Filed: 2022-03-31
- Published: 2024-06-13
- Earliest claimed: 2021-03-31
- Assignees: Adama Agan Ltd.
- Applicants: Adama Agan Ltd.
- Inventors: Liron HEVRONI; Gilad SILBERT; David MOCATTA; Vladimir GUBRIY
- Web page: https://patentgrep.com/patent/US20240188560A1

## CPC

- A01N 25/04: Dispersions, {emulsions, suspoemulsions, suspension concentrates} or gels (foams A01N25/16)
- A01N 25/10: Macromolecular compounds
- A01N 25/30: characterised by the surfactants
- A01N 37/22: the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
- A01N 41/10: Sulfones; Sulfoxides
- A01N 57/20: containing acyclic or cycloaliphatic radicals
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

An oil-in-water agrochemical suspoemulsion comprising (i) an aqueous phase: (ii) a liquid organic phase emulsified in the aqueous phase. which comprises at least one lipophilic active ingredient: (iii) at least 5 w/w%. with respect to the total weight of the final emulsion, of salts: (iv) a thickener: (v) a combination of surfactants comprising a polyanionic block copolymer surfactant and a second surfactant: and a (vi) solid active ingredient. The invention is further directed to tank mixes and methods for the control of undesired plants. pests or diseases. The invention is also directed to an emulsion for preparing said suspoemulsion.

## Claims

### Claim 1

A suspoemulsion formulation comprising
(i) an aqueous phase;
(ii) a liquid organic phase emulsified in the aqueous phase, the liquid organic phase comprising at least one lipophilic active ingredient and, optionally, a lipophilic organic solvent;
(iii) at least 5 w/w %, with respect to the total weight of the final emulsion, of salts;
(iv) a thickener;
(v) a combination of surfactants comprising
between 0.1 and 15 w/w %, with respect to the total weight of the final emulsion, of a polyanionic block copolymer surfactant comprising a hydrophobic moiety and a hydrophilic moiety, wherein at least 60 w/w % of the hydrophilic moiety comprises charged monomers and wherein the weight percentage of the charged monomers is at least 35 w/w % with respect to the total weight of the polyanionic block copolymer surfactant;
between 0.1 and 15 w/w %, with respect to the total weight of the final emulsion, of a second surfactant selected from
sorbitan esters of fatty acids;
polyalcoxylated alcohols selected from the group consisting of esters of polyalkoxylated polyols, polyalkoxylated polyols, and polyalkoxylated C4-C30 aliphatic alcohols; and
aliphatic or aromatic sulphates or sulphonates selected from the group consisting of alkyl sulphates, alkyl aryl sulphates, aryl alkyl sulphates, aryl sulphates, alkyl sulphonates, alkyl aryl sulphonates, aryl alkyl sulphonates and aryl sulphonates; and
(vi) a solid active ingredient.

### Claim 2 (depends on 1)

The suspoemulsion according to claim 1, comprising a polymeric non-ionic surfactant selected from the group of the alkyl polyglicosides.

### Claim 3

The suspoemulsion according to any of the previous claims, wherein said salt comprises a hydrophilic active ingredient electrolyte.

### Claim 4

The suspoemulsion according to any of the previous claims, wherein said charged monomers comprise an anionic sulphonate group.

### Claim 5

The suspoemulsion according to any of the previous claims, wherein the second surfactant is selected from the group of alkyl suphates.

### Claim 6 (depends on 1)

An aqueous tank mix comprising an adjuvant and the suspoemulsion defined in claim 1.

### Claim 7 (depends on 1, 6)

A method for the control of undesired plants, pests or diseases comprising contacting an effective amount of the suspoemulsion as defined in claim 1 or the tank mix as defined in claim 6 with the locus of said undesired plants, pests or diseases.

### Claim 8

An oil-in-water agrochemical emulsion comprising
(i) an aqueous phase;
(ii) a liquid organic phase emulsified in the aqueous phase, the liquid organic phase comprising at least one lipophilic active ingredient and, optionally, a lipophilic organic solvent;
(iii) at least 5 w/w %, with respect to the total weight of the final emulsion, of salts;
(iv) a thickener; and
(v) a combination of surfactants comprising
between 0.1 and 15 w/w %, with respect to the total weight of the final emulsion, of a polyanionic block copolymer surfactant comprising a hydrophobic moiety and a hydrophilic moiety, wherein at least 60 w/w % of the hydrophilic moiety comprises charged monomers and wherein the weight percentage of the charged monomers is at least 35 w/w % with respect to the total weight of the polyanionic block copolymer surfactant; and
between 0.1 and 15 w/w %, with respect to the total weight of the final emulsion, of a second surfactant selected from
sorbitan esters of fatty acids;
polyalcoxylated alcohols selected from the group consisting of esters of polyalkoxylated polyols, polyalkoxylated polyols, and polyalkoxylated C4-C30 aliphatic alcohols; and
aliphatic or aromatic sulphates or sulphonates selected from the group consisting of alkyl sulphates, alkyl aryl sulphates, aryl alkyl sulphates, aryl sulphates, alkyl sulphonates, alkyl aryl sulphonates, aryl alkyl sulphonates and aryl sulphonates.

### Claim 9 (depends on 8)

The emulsion according to claim 8, wherein the sum of the concentration of the salt components (iii) is between 5 and 50 w/w % with respect to the total weight of the final emulsion.

### Claim 10 (depends on 9)

The emulsion according to claim 9, wherein the concentration of the hydrophilic active ingredient electrolyte is between 5 and 50 w/w %, with respect to the total weight of the final emulsion.

### Claim 11 (depends on 8, 9, 10)

An aqueous tank mix comprising an adjuvant and the emulsion defined in any of claims 8 to 10.

### Claim 12

A process for the preparation of the emulsion that comprises
(i) emulsifying an organic phase comprising at least one lipophilic active ingredient, optionally a lipophilic organic solvent, and between 0.1 and 15 w/w %, with respect to the total weight of the final emulsion, of a second surfactant selected from
sorbitan esters of fatty acids;
polyalcoxylated alcohols selected from the group consisting of polyalkoxylated polyols or esters thereof, and polyalkoxylated C4-C30 aliphaitic alcohols; and
aliphatic or aromatic sulphates or sulphonates selected from the group consisting of alkyl sulphates, alkyl aryl sulphates, aryl alkyl sulphates, aryl sulphates, alkyl sulphonates, alkyl aryl sulphonates, aryl alkyl sulphonates and aryl sulphonates;
into an aqueous phase comprising water and between 0.1 and 15 w/w %, with respect to the total weight of the final emulsion, of a polyanionic block copolymer surfactant comprising a hydrophobic moiety and a hydrophilic moiety, wherein at least 60 w/w % of the hydrophilic moiety comprises charged monomers and wherein the weight percentage of the charged monomers is at least 35 w/w % with respect to the total weight of the polyanionic block copolymer surfactant, the aqueous phase optionally comprising less than 5 w/w %, with respect to the total weight of the final emulsion of salts;
(ii) optionally, mixing the previously obtained emulsion with a first amount of thickener;
(iii) mixing the emulsion obtained in the previous step with an amount of salts up to a minimum of 5 w/w %, with respect to the total weight of the final emulsion;
(iv) mixing the emulsion obtained in the previous step with a thickener.

### Claim 13 (depends on 12)

The process according to claim 12 comprising
(i) emulsifying an organic phase comprising between 0.1 and 75 w/w %, with respect to the total weight of the final emulsion, of at least one lipophilic active ingredient, optionally a lipophilic organic solvent, and between 0.1 and 15 w/w %, with respect to the total weight of the final emulsion, of a second surfactant selected from
sorbitan esters of fatty acids;
polyalcoxylated alcohols selected from the group consisting of polyalkoxylated polyols or esters thereof, and polyalkoxylated C4-C30 aliphaitic alcohols; and
aliphatic or aromatic sulphates or sulphonates selected from the group consisting of alkyl sulphates, alkyl aryl sulphates, aryl alkyl sulphates, aryl sulphates, alkyl sulphonates, alkyl aryl sulphonates, aryl alkyl sulphonates and aryl sulphonates;
into an aqueous phase comprising water and between 0.1 and 15 w/w %, with respect to the total weight of the final emulsion, of a polyanionic block copolymer surfactant comprising a hydrophobic moiety and a hydrophilic moiety, wherein at least 60 w/w % of the hydrophilic moiety comprises charged monomers and wherein the weight percentage of the charged monomers is at least 35 w/w % with respect to the total weight of the polyanionic block copolymer surfactant;
(ii) optionally, mixing the previously obtained emulsion with a first amount of thickener;
(iii) mixing the emulsion obtained in the previous step with 5 w/w % or more, with respect to the total weight of the final emulsion, of a hydrophilic active ingredient electrolyte; and
(iv) mixing the emulsion obtained in the previous step with a thickener.

### Claim 14 (depends on 1, 8, 9, 10)

Use of an emulsion as defined in any of claims 8 to 10 for preparing a stable suspoemulsion as defined in claim 1.