Back to results
US 4,772,722 AGranted
Nadimido-substituted cyclophosphazene
AssigneeHercules Incorporated
InventorAlexander Lukacs, III
Life of this patent
Estimating the term…
Abstract
Disclosed are nadimido-substituted cyclophosphazene derivatives and thermosets thereof. The thermosets are useful as high temperature, flame resistant matrices for composites and as metal adhesives.
Claims3
A cyclophosphazene derivative having the formula ##STR14## where n is 3 or 4;
- R.sub.1 and R.sub.2 are the same, different, or vary from one phosphorus atom to the next on the same cyclophosphazene ring and are selected from the group consisting of ##STR15## where R is selected from the group consisting of H or a nonreactive moiety;
- and an average of at least two of the radicals R.sub.1 and R.sub.2 per cyclophosphazene ring contain a nadimido group.
Dependencies are inferred from the claim text.