US3948636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flowable aqueous composition of water-insoluble pesticide
Assignee: SDS Biotech Corp
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Filing: 1972-11-09
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Granted: 1976-04-06
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Expires: 1992-11-09
Abstract
Abstract An easily handled, flowable, pesticide composition contains as essential components in water as the sole liquid medium, from 10 to 60%, by weight, of at least one solid, substantially water-insoluble pesticidally-active ingredient; from 1 to 10%, by weight, of a water-soluble nonionic surfactant; and from 0.02 to 1% by weight of a heteropolysaccharide gum. Optional ingredients of the composition include, for example, antifoam agents, anticaking agents, and freeze-point depressants. This composition is an extremely stable suspension. It is totally dispersible in water, providing agglomerate-free pesticidal spray compositions.
Inventors
- 👤 Alfred F. Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:43
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/02; A01N25/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
81 words
A flowable, storage-stable, aqueous pesticide concentrate readily dilutable in water to provide an effective amount of pesticide for spray application which, prior to dilution, consists essentially of, by weight of the total concentrate, a. from 10 to 60% of an essentially water-insoluble pesticide component having an average particle size ranging between about 1 and 10 microns; b. from 1 to 10% of at least one nonionic surfactant; and c. from 0.02 to 1.0% of a heteropolysaccharide gum, the balance being water.
Claim 2
Dependent Claim
81 words
A flowable, storage-stable, aqueous pesticide concentrate readily dilutable in water to provide an effective amount of pesticide for spray application which, prior to dilution, consists essentially of, by weight of the total concentrate, a. from 10 to 60% of an essentially water-insoluble pesticide component having an average particle size ranging between about 1 and 10 microns; b. from 1 to 10% of at least one nonionic surfactant; and c. from 0.02 to 1.0% of a heteropolysaccharide gum, the balance being water.
Claim 3
Dependent Claim
33 words
The composition of claim 1 wherein the nonionic surfactant is selected from the group consisting of alkylaryl polyether alcohols, alkyl polyether alcohols, polyoxyethylene fatty acid ethers, ethoxylated anhydrosorbitol esters, and ethoxylated polyoxypropylene glycols.
Claim 4
Dependent Claim
35 words
The composition of claim 2 wherein the nonionic surfactant is an alkylaryl polyether alcohol of the formula ##EQU2## wherein R is a C 8 -C 12 alkyl group and y is an integer of 8-30.
Claim 5
Dependent Claim
83 words
The composition of claim 1 which contains, by weight of the total composition, a. from 40 to 60% of a water-insoluble pesticide component having an average particle size ranging from about 1 to 10 microns; b. from 3 to 7% of a nonionic surfactant; c. from 0.1 to 0.5% of heteropolysaccharide gum; d. from 0.5 to 2% of an anticaking agent; e. from 0.2 to 0.7% of an antifoaming agent; f. from 2 to 6% of a freeze-point depressant; and the balance, water.
Claim 6
Dependent Claim
39 words
The composition of claim 4 wherein the anticaking agent is an ultrafine, chemically inert essentially pure silica containing less than 5% moisture; the antifoaming agent is a silicone emulsion; and the freeze-point depressant is either ethylene or propylene glycol.
Claim 7
Dependent Claim
14 words
The composition of claim 1 wherein the essentially water-insoluble pesticide component is a fungicide.
Claim 8
Dependent Claim
10 words
The composition of claim 6 wherein the fungicide is tetrachloroisophthalonitrile.
Claim 9
Dependent Claim
14 words
The composition of claim 1 wherein the essentially water-insoluble pesticide component is a herbicide.
Claim 10
Dependent Claim
15 words
The composition of claim 8 wherein the herbicide is the dimethyl ester of tetrachloroterephthalic acid.
Claim 11
Dependent Claim
20 words
The composition of claim 1 wherein the essentially water-insoluble pesticide component is a mixture of a fungicide and an insecticide.
Claim 12
Dependent Claim
15 words
The composition of claim 10 wherein the fungicide is tetrachloroisophthalonitrile and the insecticide is N-methyl-1-naphthylcarbamate.
Claim 13
Dependent Claim
18 words
The composition of claim 1 which additionally contains from 0.2 to 10%, by weight, of an anticaking agent.
Claim 14
Dependent Claim
16 words
The composition of claim 1 which additionally contains from 0.1 to 5% of an antifoaming agent.
Claim 15
Dependent Claim
18 words
The composition of claim 1 which additionally contains from 1 to 10%, by weight, of a freeze-point depressant.
Claim 16
Dependent Claim
27 words
The composition of claim 1 which additionally contains, by weight, from 0.2 to 10% of an anticaking agent and from 0.1 to 5% of an antifoaming agent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |