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US 2019/0100473 A1Published application
Compositions usable as flare compositions
AssigneeNorthrop Grumman Innovation Systems, Inc.
InventorsDaniel B. Nielson, Curtis W. Fielding
Life of this patent
Estimating the term…
Abstract
A composition that includes a fuel and a perfluoropolyether (PFPE) is disclosed. The composition may be used as a flare composition in a countermeasure device. Countermeasure devices including the flare composition are also disclosed, as are methods of forming grains of the countermeasure device.
Claims20
A composition, comprising:
- a fuel;
- a perfluoropolyether (PFPE) having a chemical structure of HO(CH2CH2O)nCH2CF2O (CF2CF2O)p(CF2O)qCF2CH2(OCH2CH2)nOH and a fluorine content of about 57% by weight of the PFPE, where n is an integer between 1 and 10, p is an integer between 1 and 50, and q is an integer between 1 and 50;
- and
- an isocyanate compound,
- the PFPE comprising from about 15 wt % to about 35 wt % of the composition.
2 more elements
A composition, comprising:
- a fuel;
- a perfluoropolyether (PFPE) having a chemical structure of HO(CH2CH2O)nCH2CF2O (CF2CF2O)p(CF2O)qCF2CH2(OCH2CH2)nOH and a fluorine content of about 57% by weight of the PFPE, where n is an integer between 1 and 10, p is an integer between 1 and 50, and q is an integer between 1 and 50;
- and
- an isocyanate compound,
- the PFPE comprising from about 20 wt % to about 35 wt % of the composition.
2 more elements
A composition, comprising:
- a fuel;
- a perfluoropolyether (PFPE) having a chemical structure of HO(CH2CH2O)nCH2CF2O (CF2CF2O)p(CF2O)qCF2CH2(OCH2CH2)nOH and a fluorine content of about 57% by weight of the PFPE, where n is an integer between 1 and 10, p is an integer between 1 and 50, and q is an integer between 1 and 50;
- and
- an isocyanate compound,
- the PFPE comprising from about 15 wt % to about 35 wt % of the composition, and the composition formulated to produce an infrared intensity of at least about 95% of an infrared intensity of a composition comprising magnesium, polytetrafluoroethylene, and a copolymer of vinylidenefluoride and hexafluoropropylene (MTV composition).
2 more elements
Dependencies are inferred from the claim text.