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US 8,349,223 B1Granted
Boronated polyphosphinohydrazide fire retardant
AssigneeThe Boeing Company
InventorsNorman R. Byrd, Douglas G. Soden, Arthur Rojo
Life of this patent
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Abstract
Boronated polyphosphinohydrazide fire retardants are provided having the basic structural unit: wherein, Y is O or S; R can be selected from H, alkyl (e.g., linear, branched, saturated, or unsaturated), aryl, heterocyclic, cycloaliphatic (e.g., saturated or unsaturated), or a metallocene (e.g., ferrocene, zirconocene or the like); and n can be selected from 1 to 500.
Claims16
A boronated polyphosphinohydrazide having the basic structural unit:
- wherein,
- Y is O or S;
- R is H, an unsaturated or saturated alkyl, an aryl, a heterocyclic, a cycloaliphatic, or a metallocene;
- and
- n is from 1 to 500.
2 more elements
A polymer resin, comprising a mixture of:
- (A) a boronated polyphosphinohydrazide having the basic structural unit:
- wherein,
- Y is O or S;
- R is H, an unsaturated or saturated alkyl, an aryl, a heterocyclic, a cycloaliphatic, or a metallocene;
- n is from 1 to 500;
- and
- (B) a base polymer selected from a polyimide, epoxy, acrylic, polyvinyl, phenolic/Novolak, polybenzimidazole, polyquinoxaline, polypyrrole, polyaniline, polyamide, polyaryl, polyamic acid, silicone resin or combinations thereof.
4 more elements
A fire resistant composite, comprising a cured mixture of:
- (A) a boronated polyphosphinohydrazide having the basic structural unit:
- wherein,
- Y is O or S;
- R is H, an alkyl, an aryl, a heterocyclic, and a cycloaliphatic;
- n is from 1 to 500;
- and
- (B) a base polymer selected from a polyimide, epoxy, acrylic, polyvinyl, phenolic/Novolak, polybenzimidazole, polyquinoxaline, polypyrrole, polyaniline, polyamide, polyaryl, polyamic acid, silicone resin or combinations thereof.
4 more elements
Dependencies are inferred from the claim text.