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US 4,383,391 AGranted
Seed coating composition based on carbamate pesticide and non-alkaline amorphous carbon
AssigneeCelanese Corporation
InventorsNorman W. Thomas, Henry A. Terwedow
Life of this patent
Estimating the term…
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.
Claims14
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.
Dependencies are inferred from the claim text.