US4383391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seed coating composition based on carbamate pesticide and non-alkaline amorphous carbon
Assignee: ARISIX (SA)
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Filing: 1981-09-21
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Granted: 1983-05-17
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Expires: 2001-09-21
Abstract
Abstract The phytoxicity of a carbamate pesticide such as carbofuran (2,3-dihydro-2,2-dimethyl-7-benzofuranol methylcarbamate) contained in a seed coating composition is nullified or minimized without materially reducing the pesticidal effectiveness of the carbamate by the presence in the seed coating composition of an activiated charcoal powder of neutral to acid pH.
Inventors
- 👤 Norman W. Thomas
- 👤 Henry A. Terwedow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:33
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/32; A01N47/00; A01N47/08; A01N47/10; A01N47/22
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
103 words
A continuous, adherent coating composition for seeds comprising: (a) a first layer in adherent contact with the seed surface containing as the major component by weight thereof, a phytotoxic-protective amount of a particulate activated charcoal of substantially neutral to acidic pH, the charcoal being bound to the seed surface with a binding amount of a non-phytotoxic binder; and, (b) a second layer in adherent contact with the outer surface of the first layer containing a pesticidally effective amount of a carbamate pesticide, the carbamate pesticide being bound to the outer surface of the first layer with a binding amount of a nonphytotoxic binder.
Claim 2
Dependent Claim
103 words
A continuous, adherent coating composition for seeds comprising: (a) a first layer in adherent contact with the seed surface containing as the major component by weight thereof, a phytotoxic-protective amount of a particulate activated charcoal of substantially neutral to acidic pH, the charcoal being bound to the seed surface with a binding amount of a non-phytotoxic binder; and, (b) a second layer in adherent contact with the outer surface of the first layer containing a pesticidally effective amount of a carbamate pesticide, the carbamate pesticide being bound to the outer surface of the first layer with a binding amount of a nonphytotoxic binder.
Claim 3
Dependent Claim
24 words
The coating composition of claim 1 wherein the pH of the charcoal powder is in the range of from about 4 to about 7.
Claim 4
Dependent Claim
24 words
The coating composition of claim 1 wherein the charcoal possesses an average particle size range of from about 5 millimicrons to about 900 microns.
Claim 5
Dependent Claim
19 words
The seed coating composition of claim 1 wherein the binder is of the water soluble or water dispersible type.
Claim 6
Dependent Claim
53 words
The seed coating composition of claim 4 wherein the binder for the charcoal is an aqueous polyvinyl acetate latex or a water and/or alcohol solution or dispersion of polyvinyl alcohol, polyvinylpyrrolidone, methyl cellulose, hydroxylpropyl cellulose, a dextrin, sugar, molasses, an alginate, karaya gum, jaguar gum, tragacanth gum, polysaccharide gum, natural glue or mucilage.
Claim 7
Dependent Claim
35 words
The seed coating composition of claim 5 wherein the binder is a high solids content aqueous solution of a polyvinyl alcohol or polyvinylpyrrolidone having an average molecular weight of from about 10,000 to about 40,000.
Claim 8
Dependent Claim
25 words
The seed coating composition of claim 1 wherein the binder for the charcoal is an organic solvent solution of a water insoluble, non-water dispersible binder.
Claim 9
Dependent Claim
18 words
The seed coating composition of claim 1 wherein the binder is a cellulose ester or a poly (caprolactone).
Claim 10
Dependent Claim
13 words
The seed coating composition of claim 1 wherein the carbamate pesticide is carbofuran.
Claim 11
Dependent Claim
53 words
The seed coating composition of claim 1 wherein the binder for the carbamate is an aqueous polyvinyl acetate latex or a water and/or alcohol solution or dispersion of polyvinyl alcohol, polyvinylpyrrolidone methyl cellulose, hydroxylpropyl cellulose, a dextrin, sugar, molasses, an alginate, karaya gum, jaguar gum, tragacanth gum, polysaccharide gum, natural glue or mucilage.
Claim 12
Dependent Claim
38 words
The seed coating composition of claim 10 wherein the binder for the carbamate is a high solids content aqueous solution of a polyvinyl alcohol or polyvinylpyrrolidone having an average molecular weight of from about 10,000 to about 40,000.
Claim 13
Dependent Claim
25 words
The seed coating composition of claim 10 wherein the binder for the carbamate is an organic solvent solution of a water insoluble, non-water dispersible binder.
Claim 14
Dependent Claim
18 words
The seed coating composition of claim 10 wherein the binder is a cellulose ester of a poly (caprolactone).
Claim 15
Dependent Claim
65 words
The seed coating composition of claim 1 wherein the coating composition contains at least one additional ingredient selected from the group consisting of growth regulant, particulate hydrophobe, inert particulate filler, fertilizer, fungicide, bacterial inoculant and nutrient applied directly to the seed surface, as part of the first and/or second layer and/or applied to the exterior surface of either or both the first and second layers.
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) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |