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US 11,884,772 B2Granted
Phenylphosphine oxide and oxygen stable epoxy polymers and methods of synthesis
AssigneeThe University of Southern Mississippi
InventorsWitold K. Fuchs, Jeffrey Wiggins
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Abstract
A polymer formed of at least one phenylphosphine oxide functional epoxide crosslinked with at least one phenylphosphine oxide amine such that the polymer has phosphorous concentrations of at least about 8 percent by weight, at least about 8.5 percent by weight, or any value or range of values therebetween.
Claims11
A phenylphosphine oxide epoxy-amine composition, comprising:
- a phenylphosphine oxide diamine monomer;
- and
- a phenylphosphine oxide epoxide monomer crosslinked with the phenylphosphine oxide diamine monomer,
- wherein said composition is an atomic oxygen polymer having a structure:
- wherein the atomic oxygen polymer hast the structure:
- and further wherein the polymer includes aryl groups and phenyl groups, and further wherein each X is one of an epoxide and an epoxide-reactive substituent.
3 more elements
A layered structure comprising:
- a substrate;
- and
- a skin cured onto a surface of the substrate, wherein the skin is formed of a phenylphosphine oxide epoxy-amine having a composition of greater than about 8 percent phosphorus by weight, wherein the phenylphosphine oxide epoxy-amine is synthesized from a phenylphosphine oxide epoxide and a phenylphosphine oxide amine and has a structure:
- wherein the substrate is a carbon fiber reinforced polymer composite panel configured to be co-cured with the skin.
1 more element
Dependencies are inferred from the claim text.