# US 5,707,928 A · Emulsifiable suspension concentrate compositions of imidazolinyl benzoic acids, esters and salts thereof, and dinitroaniline herbicides

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- Number: US 5,707,928 A
- Document ID: US5707928A
- Status: Granted
- Kind: A
- Application number: 08/426,537
- Filed: 1995-04-21
- Granted: 1998-01-13
- Earliest claimed: 1993-09-28
- Assignees: American Cyanamid Company
- Inventors: Ivor Philip Baker
- Web page: https://patentgrep.com/patent/US5707928A

## CPC

- A01N 43/50: 1,3-Diazoles; Hydrogenated 1,3-diazoles
- 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

The present invention provides herbicidal emulsifiable suspension concentrate compositions of imidazolinyl benzoic acids, or esters or salts thereof, and dinitroaniline herbicides. Such compositions have improved low temperature stability.

## Claims

### Claim 1

A herbicidal emulsifiable suspension concentrate composition comprising about 5% to 20% by weight of a imidazolinyl benzoic acid, or ester or salt thereof, about 10% to 30% by weight of a dinitroaniline herbicide, about 0.5% to 10% by weight of a mixture of an alkylarylsulfonate and an alkylarylsulfonic acid, about 5% to 15% by weight of a nonionic surfactant or mixture of nonionic surfactants, about 1% to 10% by weight of a suspending agent, up to about 1% by weight if an antifoaming agent, and an aromatic solvent or mixture of aromatic solvents.

### Claim 2 (depends on 1)

The composition according to claim 1 wherein the imidazolinyl benzoic acid, or ester or salt thereof, comprises imazamethabenz-methyl.

### Claim 3 (depends on 1)

The composition of claim 1 wherein the ratio of the alkylarylsulfonate to the alkylarylsulfonic acid is about 0.1:1 to 8:1 and the ratio of the mixture of the alkylarylsulfonate and the alkylarylsulfonic acid to imazamethabenz-methyl is about 0.1:1 to 0.6:1.

### Claim 4 (depends on 3)

The composition according to claim 3 which comprises about 10% to 15% by weight imazamethabenz-methyl, about 15% to 25% by weight of a dinitroaniline herbicide, about 2% to 6% by weight of a mixture of an alkylarylsulfonate and an alkylarylsulfonic acid, about 5% to 10% by weight of a polyoxyethylene phenyl ether, about 0.5% to 2% by weight of a polyalkylene glycol ether, about 1% to 6% by weight of a clay, up to about 1% by weight of an antifoaming agent, up to about 2% by weight xylene, and an aromatic hydrocarbon solvent having a distillation range of from about 135.degree. C. to 305.degree. C., wherein the ratio of the alkylarylsulfonate to the alkylarylsulfonic acid is about 0.1:1 to 8:1 and the ratio of the mixture of the alkylarylsulfonate and the alkylarylsulfonic acid to imazamethabenz-methyl is about 0.1:1 to 0.6:1.

### Claim 5 (depends on 1)

The composition according to claim 1 wherein the dinitroaniline herbicide is selected from the group consisting of pendimethalin, trifluralin, benfluralin, isopropalin, ethalfluralin and oryzalin.

### Claim 6 (depends on 5)

The composition according to claim 5 wherein the dinitroaniline herbicide is pendimethalin.

### Claim 7 (depends on 1)

The composition according to claim 1 wherein the alkylarylsulfonate is a C.sub.8 -C.sub.18 alkylbenzenesulfonate, the alkylarylsulfonic acid is a C.sub.8 -C.sub.18 alkylbenzenesulfonic acid, the nonionic surfactant is a mixture of a polyoxyethylene phenyl ether and a polyalkylene glycol ether and the suspending agent is a clay.

### Claim 8 (depends on 7)

The composition according to claim 7 wherein the C.sub.8 -C.sub.18 alkylbenzenesulfonate is calcium dodecylbenzenesulfonate, the C.sub.8 -C.sub.18 alkylbenzenesulfonic acid is dodecylbenzenesulfonic acid, the polyoxyethylene phenyl ether is a polyoxyethylene nonylphenyl ether with about 11 moles of ethylene oxide per molecule, the polyalkylene glycol ether is a butoxypolypropylenoxy polyethylenoxyethanol and the clay is an attapulgite clay.

### Claim 9 (depends on 1)

The composition according to claim 1 wherein the aromatic solvent is a mixture of xylene and an aromatic hydrocarbon solvent having a distillation range of from about 135.degree. C. to 305.degree. C.

### Claim 10 (depends on 9)

The composition according to claim 9 wherein the aromatic hydrocarbon solvent has a distillation range of from about 183.degree. C. to 290.degree. C.

### Claim 11 (depends on 1)

The composition according to claim 1 wherein the aromatic solvent is an aromatic hydrocarbon solvent having a distillation range of from about 135.degree. C. to 305.degree. C.

### Claim 12 (depends on 11)

The composition according to claim 11 wherein the aromatic hydrocarbon solvent has a distillation range of from about 183.degree. C. to 290.degree. C.
