Rocket motors having controlled autoignition propellant systems

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United States of America Patent

PATENT NO 9784545
SERIAL NO

10376297

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Abstract

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Solid propellant systems include a main propellant and a secondary propellant in contact with the first propellant that exhibits autoignition temperatures of at least about 100° F. lower than the autoignition temperature of the main propellant. The secondary propellant of the present invention is most advantageously employed with conventional AP-containing solid propellant formulations as the main propellant, especially formulations containing both AP, an energetic solid, and a binder. In especially preferred forms, the secondary propellant will include a nitramine which is at least one selected from nitroguanidine (NQ), cyclotrimethylene trinitramine (RDX) and cyclotetramethylenetetranitramine (HMX), and a binder which is at least one selected from HTPB, HTPE or glycidyl azide polymer (GAP). Most preferably, the secondary propellant will include a combination of nitramines which includes NQ and one of RDX or HMX.

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Patent Owner(s)

Patent OwnerAddress
AEROJET ROCKETDYNE INCP O BOX 13222 SACRAMENTO CA 95813-6000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Graham, Kenneth J Warrenton, US 5 44
Grove, Edna M Chester Gap, US 2 2
Lynch, Robert D Warrenton, US 7 27
Spear, Guy B Orlean, US 8 66

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