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US 4,048,264 AGranted
Polymeric phosphoramides
AssigneePetrolite Corporation
InventorDerek Redmore
Life of this patent
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Abstract
Polymeric phosphoramides -- these are illustrated by polymeric phosphoramides of the formula unit ##STR1## where OA is an oxirane derived unit, n is a number and N is an amine moiety; and to uses thereof.
Claims6
A polymeric phosphoramide compound selected from the group consisting of polymeric phosphoramides and hydrohalide salts thereof prepared by reacting
- 1. a polymeric ester of the formula ##STR100## where A is an alkylene radical, n is about 1 to 50 and
- m is about 2 to 40 and
- 2.
Dependencies are inferred from the claim text.