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US 4,053,612 AGranted
Stabilized formulations of 2-alkoxyimino-N-carbamoyl-2-cyanoacetamides
AssigneeE. I. Du Pont de Nemours and Company
InventorsFrederic John Baude, Willis Eli Cupery
Life of this patent
Estimating the term…
Abstract
2-Alkoxyimino-N-carbamoyl-2-cyanoacetamides are unstable in the presence of bases, even bases which are quite weak. Fungicidal compositions of these compounds are stabilized by the addition of an acidulant.
Claims11
A fungicidal composition consisting essentially of 10 parts of a compound of the formula ##STR2## wherein R is methyl or ethyl, and
- R.sub.1 is hydrogen, alkyl of 1 to 4 carbon atoms or allyl,
- and from 1 to 100 parts of an acidulant having a pH of 2 to 5.7 in a 1% distilled water mixture and a free acidity of at least 2.5 millimoles per gram of acidulant when titrated in a 1% distilled water mixture to a pH of 7.
A fungicidal spray mixture consisting essentially of a fungicidally effective amount of a compound of the formula ##STR3## wherein R is methyl or ethyl, and
- R.sub.1 is hydrogen, alkyl of 1 to 4 carbon atoms or allyl,
- and sufficient acidulant to adjust the pH to from 3 to 7.3
A fungicidal composition consisting essentially of
- a. 10 parts of a compound of the formula ##STR4## wherein R is methyl or ethyl, and
- R.sub.1 is hydrogen, alkyl of 1 to 4 carbon atoms or allyl;
- b. a fungicidally effective amount of a fungicide selected from the group consisting of maneb and mancozeb;
- and
- c. from 1 to 100 parts of an acidulent having a pH of 2 to 5.7 in a 1% distilled water mixture and a free acidity of from 2.5 millimoles per gram to 22 millimoles per gram of acidulent when titrated in a 1% distilled water mixture to a pH of 7
- with the proviso that when the composition contains maneb, said acidulent includes a zinc salt selected from the group consisting of zinc chloride, zinc sulfate and zinc nitrate in which the mole ratio of zinc salt to maneb is from 2 to 15 percent.
3 more elements
Dependencies are inferred from the claim text.