# US 10,440,948 B2 · Choline chloride in liquid guar formulations

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- Number: US 10,440,948 B2
- Document ID: US10440948B2
- Status: Granted
- Kind: B2
- Application number: 15/446,287
- Filed: 2017-03-01
- Published: 2017-06-22
- Granted: 2019-10-15
- Earliest claimed: 2014-07-07
- Assignees: Rhodia Operations
- Applicants: Rhodia Operations
- Inventors: Michelle McKnight; Leahann Iannotta; Thomas Ruch; Marc Balastre
- Web page: https://patentgrep.com/patent/US10440948B2

## CPC

- A01N 25/04: Dispersions, {emulsions, suspoemulsions, suspension concentrates} or gels (foams A01N25/16)
- A01N 25/30: characterised by the surfactants
- C09K 8/03: Specific additives for general use in well-drilling compositions
- 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
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

A concentrated adjuvant composition comprises an incompletely hydrated water-soluble polymer suspended in a liquid medium, a suspension agent and a hydration inhibitor component.

## Claims

### Claim 1

A concentrated adjuvant composition, comprising, based on 100 parts by weight of the composition:
greater than 1.8 parts by weight of an incompletely hydrated water-soluble polymer suspended in a liquid medium;
a hydration inhibitor component comprising choline bicarbonate, choline dihydrogen citrate, choline bitarate, potassium hydrogen phosphate, potassium carbonate, or any combination thereof; and
a suspending agent in an amount effective to impart shear thinning properties to the composition.

### Claim 2 (depends on 1)

The composition of claim 1 wherein the hydration inhibitor component comprises choline bicarbonate.

### Claim 3 (depends on 1)

The composition of claim 1 wherein the hydration inhibitor component comprises choline dihydrogen citrate.

### Claim 4 (depends on 1)

The composition of claim 1 further comprising glycerine, a water conditioning agent, one or more surfactants, or a mixture thereof.

### Claim 5 (depends on 1)

The composition of claim 1 wherein the water-soluble polymer is a cationic hydroxypropyl guar or a cationic guar.

### Claim 6 (depends on 1)

The composition of claim 1, wherein the suspending agent is selected from fumed silica, inorganic colloidal or colloid-forming particles, rheology modifier polymers, or mixtures thereof.

### Claim 7 (depends on 1)

The composition of claim 1 wherein the water-soluble polymer is a water-soluble polysaccharide and wherein the hydration inhibitor component is present in an amount effective to inhibit hydration of the water-soluble polysaccharide in the aqueous medium and wherein the hydration inhibitor component further comprises at least one of: one or more surfactant compounds, one or more water-soluble non-surfactant salts, or one or more water dispersible organic solvents.

### Claim 8 (depends on 1)

The composition of claim 1, further comprising a pesticide active ingredient, wherein the water-soluble polymer enhances delivery of the pesticide active ingredient from the liquid medium to a target substrate.

### Claim 9 (depends on 1)

The composition of claim 1, wherein the liquid medium is an aqueous liquid medium that comprises water or water and a water immiscible organic liquid, and wherein the composition is in the form of an emulsion, a microemulsion, or a suspoemulsion.

### Claim 10 (depends on 1)

The composition of claim 1, wherein:
the water-soluble polymer is selected from polyacrylamide polymers, non-derivatized guar polymers, derivatized guar polymers, and mixtures thereof, and
the suspending agent is selected from fumed silicas, inorganic colloidal or colloid-forming particles, rheology modifier polymers, water-soluble polysaccharide polymers other than the non-derivatized or derivatized guar polymer, and mixtures thereof.

### Claim 11 (depends on 1)

The composition of claim 1 wherein the composition exhibits a viscosity of less than 10 Pa·s at a shear rate of greater than or equal to 10 s−1.

### Claim 12 (depends on 1)

The composition of claim 1 wherein the composition comprises, based on 100 parts by weight of the composition, greater than 2 parts by weight of an incompletely hydrated water-soluble polymer suspended in a liquid medium.

### Claim 13 (depends on 1)

The composition of claim 1 wherein the composition comprises, based on 100 parts by weight of the composition, greater than 2.4 parts by weight of an incompletely hydrated water-soluble polymer suspended in a liquid medium.

### Claim 14 (depends on 1)

The composition of claim 1 wherein the composition is free or substantially free of ammonium-containing compounds.

### Claim 15

A concentrated adjuvant composition, comprising, based on 100 parts by weight of the composition,
from about 1 to about 20 parts by weight of a guar polymer suspended in aqueous medium, said guar polymer having a weight average molecular weight of from about 100,000 to about 5,000,000 grams per mole;
a hydration inhibitor component comprising choline bicarbonate, choline dihydrogen citrate, choline bitarate, potassium hydrogen phosphate, potassium carbonate, or any combination thereof;
wherein said composition exhibits:
(a) a viscosity of greater than or equal to 5 Pa·s at a shear rate of less than 0.01 s−1, and
(b) a viscosity of less than 5 Pa·s at a shear rate of greater than 10 s−1.

### Claim 16 (depends on 15)

The composition of claim 15 wherein the guar polymer comprises from about 2 parts to about 12 parts by weight based on 100 parts by weight of the composition.

### Claim 17 (depends on 15)

The composition of claim 15 wherein the guar polymer comprises from about 2 parts to about 5 parts by weight based on 100 parts by weight of the composition.

### Claim 18 (depends on 15)

The composition of claim 15 wherein the water-soluble polymer is a cationic hydroxypropyl guar or a cationic guar.

### Claim 19

A method for making a concentrated adjuvant composition that comprises a mixture of an aqueous liquid medium, an incompletely hydrated water-soluble polymer dispersed in the aqueous liquid medium, and a hydration inhibitor component for inhibiting hydration of the water-soluble polymer, comprising:
contacting the hydration inhibitor component with the aqueous liquid medium, and
contacting the water-soluble polymer with the mixture of aqueous liquid and a hydration inhibitor component to disperse the water-soluble polymer,
wherein the hydration inhibitor component comprises choline bicarbonate, choline dihydrogen citrate, choline bitarate, potassium hydrogen phosphate, potassium carbonate, or any combination thereof.

### Claim 20 (depends on 19)

The method of claim 19 further comprising contacting a suspending agent with at least one of the aqueous liquid medium, the water-soluble polymer, or the hydration inhibitor component.

### Claim 21 (depends on 19)

The method of claim 19 wherein the water-soluble polymer is a cationic hydroxypropyl guar or a cationic guar.

### Claim 22 (depends on 19)

The method of claim 19 further comprising contacting an agricultural pesticide compound to the composition.
