Back to results
US 4,063,923 AGranted
Carbamoylphosphonic acid brush control agents
AssigneeE. I. Du Pont de Nemours and Company
InventorJerry C-Y Han
Life of this patent
Estimating the term…
Abstract
Carbamoylphosphonates such as monoammonium hydrogen carbamoylphosphonate are useful for regulation of the growth rate of plants.
Claims9
A compound of the formula ##STR3## wherein M is hydrogen, sodium, lithium, potassium, calcium, magnesium, zinc, manganese, barium or ##STR4## R.sub.1 is hydrogen, alkyl of 1 to 4 carbon atoms or hydroxyalkyl of 2 to 4 carbon atoms;
- R.sub.2 is hydrogen, alkyl of 1 to 4 carbon atoms or hydroxyalkyl of 2 to 4 carbon atoms;
- R.sub.3 is hydrogen, alkyl of 1 to 4 carbon atoms or hydroxyalkyl of 2 to 4 carbon atoms;
- and
- R.sub.4 is hydrogen or alkyl of 1 to 12 carbon atoms;
- provided that both M's are not hydrogen and that the total number of carbon atoms in R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is less than 16.
2 more elements
Dependencies are inferred from the claim text.