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US 4,089,650 AGranted
Use of Diels-Alder adducts of dihydro-nitrogen heterocyclic phosphoramidates as corrosion inhibitors
AssigneePetrolite Corporation
InventorDerek Redmore
Life of this patent
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Abstract
Dihydro-nitrogen heterocyclic phosphoramidates of the general formula ##STR1## where N - C represents a dihydro-nitrogen ring, R is a substituted group, preferably hydrocarbon, X is O or S, and R.sub.1 is an alcohol or phenolic moiety, preferably hydrocarbon; the preparation and uses thereof particularly as corrosion inhibitors, microbiocides, etc.
Claims10
A process of inhibiting corrosion which comprises treating a system with a Diels-Alder Adduct of a dihydro-nitrogen heterocyclic phosphonate of the formula ##STR20## where N - C represents a dihydronitrogen ring, R and R.sub.1 are lower alkyl or phenyl groups and X is O or S.
Dependencies are inferred from the claim text.