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US 2010/0063169 A1Published application
Phosphoramide ester flame retardant and resins containing same
OwnerJeffrey Stowell, Weihong Liuinventors
Life of this patent
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Abstract
Certain cyclic phosphoramide ester compounds useful, inter alia, as halogen-free flame-retardant compounds, are disclosed. The compounds are particularly useful for providing flame retarded polyurethane foams. (I)
Claims24
A phosphoramide compound of the general formula:
- wherein, R1 and R2 are straight-chain or branched alkyl groups having from 1 to 6 carbon atoms, which optionally contains one or more non-terminal heteroatom substituents, R3 and R4 are independently either a hydrogen atom, aryl or substituted aryl group, or a straight-chain or branched alkyl groups having from 1 to 6 carbon atoms, which optionally contains one or more non-terminal heteroatom substituents.
14-16. (canceled)
19-21. (canceled)
28-31. (canceled)
Dependencies are inferred from the claim text.